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.github/workflows/build.yml+28−12

@@ -12,19 +12,7 @@ concurrency:

1212 cancel-in-progress: true

1313

1414jobs:

15− # The Crux core is plain Rust — build and unit-test it natively (the Android

16− # shell mirrors this logic; see README).

17− core:

18− name: Crux core

19− runs-on: ubuntu-latest

20− steps:

21− - uses: actions/checkout@v4

22− - name: Test the Crux core

23− working-directory: shared

24− run: cargo test

25−

2615 build:

27− name: Android app

2816 runs-on: ubuntu-latest

2917

3018 steps:

@@ -42,15 +30,43 @@ jobs:

4230 - name: Run unit tests

4331 run: ./gradlew testDebugUnitTest --no-daemon

4432

33+ - name: Static analysis (detekt)

34+ run: ./gradlew detekt --no-daemon

35+

4536 - name: Lint

4637 run: ./gradlew lintDebug --no-daemon

4738

4839 - name: Build debug APK

4940 run: ./gradlew assembleDebug --no-daemon

5041

42+ - name: Decode release keystore

43+ run: |

44+ mkdir -p keystore

45+ printf '%s' "$OPENCODE_STORE_BASE64" | base64 -d > keystore/opencode-release.jks

46+ env:

47+ OPENCODE_STORE_BASE64: ${{ secrets.OPENCODE_STORE_BASE64 }}

48+

49+ - name: Build release APK

50+ env:

51+ OPENCODE_STORE_FILE: ${{ github.workspace }}/keystore/opencode-release.jks

52+ OPENCODE_STORE_PASSWORD: ${{ secrets.OPENCODE_STORE_PASSWORD }}

53+ OPENCODE_KEY_ALIAS: ${{ secrets.OPENCODE_KEY_ALIAS }}

54+ OPENCODE_KEY_PASSWORD: ${{ secrets.OPENCODE_KEY_PASSWORD }}

55+ run: ./gradlew assembleRelease --no-daemon

56+

5157 - name: Upload debug APK

5258 uses: actions/upload-artifact@v4

5359 with:

5460 name: opencode-debug.apk

5561 path: app/build/outputs/apk/debug/*.apk

5662 if-no-files-found: error

63+

64+ # The release output dir is `release/` when unsigned but `release-signed/` (or a

65+ # variant name) once a signing config is applied. Match both so CI keeps working

66+ # once the OPENCODE_STORE_* secrets are wired up.

67+ - name: Upload release APK

68+ uses: actions/upload-artifact@v4

69+ with:

70+ name: opencode-release.apk

71+ path: app/build/outputs/apk/**/*.apk

72+ if-no-files-found: error

.github/workflows/release.yml+36−53

@@ -1,28 +1,17 @@

11name: Release

22

3−# Build a minified, signed release APK and publish it as a GitHub Release.

4−#

5−# Runs automatically on every push to `master` (e.g. a merged PR), on a pushed

6−# version tag (e.g. `git tag v1.2.0 && git push --tags`), or manually from the

7−# Actions tab (workflow_dispatch). For a branch push or manual run the version

8−# is derived from the current UTC time as YYYY.MM.DD.HHMM; a tag push uses the

9−# tag name (with the leading `v` stripped) as the version.

10−#

11−# The `v*` tag this workflow pushes when publishing a release does NOT retrigger

12−# it: events created with the default GITHUB_TOKEN don't start new workflow runs.

13−#

14−# Signing: if the `OPENCODE_STORE_*` secrets are configured the APK is signed

15−# with that keystore; otherwise the Gradle build falls back to the debug key so

16−# the released APK is still installable (see app/build.gradle.kts). The version

17−# is passed to Gradle as `-PversionName/-PversionCode` and stamped into the APK.

3+# Build the production (release) APK and publish a GitHub Release for every

4+# commit that lands on master. The version -- and the git tag / release name --

5+# is derived from the commit's committer date in UTC, formatted as

6+# YYYY.MM.DD.HHMM (e.g. 2026.07.04.1430). It is passed to the Gradle build as

7+# `-PversionName=...` so it is stamped into the APK and surfaces in-app.

188on:

199 push:

2010 branches: [master]

21− tags: ["v*"]

22− workflow_dispatch:

2311

24−# Never abort a release mid-flight — a half-published release with a missing

25−# artifact is worse than a slightly delayed one.

12+# A release run should never be aborted mid-flight by a newer push (a

13+# half-published release with a missing artifact is worse than a slightly stale

14+# one), so the group is per-ref but cancel-in-progress is left off.

2615concurrency:

2716 group: ${{ github.workflow }}-${{ github.ref }}

2817 cancel-in-progress: false

@@ -31,14 +20,9 @@ jobs:

3120 release:

3221 runs-on: ubuntu-latest

3322 permissions:

34− contents: write # push the tag and create the release

35− id-token: write # OIDC so GitHub can sign the provenance attestation

36− attestations: write # publish the attestation record

37− env:

38− OPENCODE_STORE_BASE64: ${{ secrets.OPENCODE_STORE_BASE64 }}

39− OPENCODE_STORE_PASSWORD: ${{ secrets.OPENCODE_STORE_PASSWORD }}

40− OPENCODE_KEY_ALIAS: ${{ secrets.OPENCODE_KEY_ALIAS }}

41− OPENCODE_KEY_PASSWORD: ${{ secrets.OPENCODE_KEY_PASSWORD }}

23+ contents: write # required to push the tag and create the release

24+ id-token: write # required for OIDC so GitHub can sign the attestation

25+ attestations: write # required to publish the attestation record

4226 steps:

4327 - uses: actions/checkout@v4

4428 with:

@@ -46,23 +30,12 @@ jobs:

4630 # accurate instead of collapsing to 1 on a shallow clone.

4731 fetch-depth: 0

4832

49− - name: Compute version

33+ - name: Compute version from commit date

5034 id: version

5135 run: |

52− if [ "${{ github.ref_type }}" = "tag" ]; then

53− VERSION="${GITHUB_REF_NAME#v}"

54− TAG="${GITHUB_REF_NAME}"

55− else

56− VERSION="$(TZ=UTC date +%Y.%m.%d.%H%M)"

57− TAG="v${VERSION}"

58− fi

59− CODE="$(git rev-list --count HEAD)"

60− {

61− echo "version=$VERSION"

62− echo "tag=$TAG"

63− echo "code=$CODE"

64− } >> "$GITHUB_OUTPUT"

65− echo "Releasing $TAG (version $VERSION, code $CODE)"

36+ VERSION="$(TZ=UTC git log -1 --format=%cd --date=format-local:%Y.%m.%d.%H%M)"

37+ echo "version=$VERSION" >> "$GITHUB_OUTPUT"

38+ echo "Version: $VERSION"

6639

6740 - uses: actions/setup-java@v4

6841 with:

@@ -74,30 +47,40 @@ jobs:

7447 - uses: gradle/actions/setup-gradle@v4

7548

7649 # The keystore ships as base64 in a secret so it never touches the repo.

77− # Job-level env makes OPENCODE_STORE_BASE64 available to this `if`.

50+ # When the secret isn't configured the Gradle build falls back to an

51+ # unsigned APK (the same behavior as a local build), so this workflow is

52+ # green even before signing is wired up.

7853 - name: Decode signing keystore

7954 if: env.OPENCODE_STORE_BASE64 != ''

55+ env:

56+ OPENCODE_STORE_BASE64: ${{ secrets.OPENCODE_STORE_BASE64 }}

8057 run: |

8158 STORE_FILE="$RUNNER_TEMP/release.keystore"

8259 printf '%s' "$OPENCODE_STORE_BASE64" | base64 -d > "$STORE_FILE"

8360 echo "OPENCODE_STORE_FILE=$STORE_FILE" >> "$GITHUB_ENV"

8461

8562 - name: Build release APK

86− run: |

87− ./gradlew assembleRelease \

88− -PversionName="${{ steps.version.outputs.version }}" \

89− -PversionCode="${{ steps.version.outputs.code }}" \

90− --no-daemon

63+ env:

64+ OPENCODE_STORE_FILE: ${{ env.OPENCODE_STORE_FILE }}

65+ OPENCODE_STORE_PASSWORD: ${{ secrets.OPENCODE_STORE_PASSWORD }}

66+ OPENCODE_KEY_ALIAS: ${{ secrets.OPENCODE_KEY_ALIAS }}

67+ OPENCODE_KEY_PASSWORD: ${{ secrets.OPENCODE_KEY_PASSWORD }}

68+ run: ./gradlew assembleRelease -PversionName="${{ steps.version.outputs.version }}" --no-daemon

9169

92− # Rename to a stable, version-tagged filename for the release attachment.

70+ # Rename to a stable, version-tagged filename so the release attachment is

71+ # recognizable regardless of the release/ vs release-signed/ output dir.

9372 - name: Stage APK

9473 run: |

9574 mkdir -p staging

96− APK="$(find app/build/outputs/apk/release -name '*.apk' | head -n1)"

75+ APK="$(find app/build/outputs/apk -name '*.apk' | head -n1)"

9776 cp "$APK" "staging/opencode-${{ steps.version.outputs.version }}.apk"

9877

99− # Signed build-provenance attestation for the exact artifact being

100− # published; later verifiable with `gh attestation verify <apk>`.

78+ # Generate a signed build-provenance attestation for the staged APK and

79+ # store it in GitHub's artifact attestation store, keyed by the file's

80+ # digest. Anyone can later verify the APK's origin/provenance with

81+ # `gh attestation verify` -- its repository & workflow. Run *after*

82+ # staging and *before* the release is published so the attested subject

83+ # is byte-identical to the artifact attached to the release.

10184 - name: Attest build provenance

10285 uses: actions/attest-build-provenance@v2

10386 with:

@@ -106,7 +89,7 @@ jobs:

10689 - name: Create release

10790 uses: softprops/action-gh-release@v2

10891 with:

109− tag_name: ${{ steps.version.outputs.tag }}

92+ tag_name: ${{ steps.version.outputs.version }}

11093 name: ${{ steps.version.outputs.version }}

11194 make_latest: true

11295 generate_release_notes: true

.gitignore−19

@@ -1,8 +1,6 @@

11# Gradle

22.gradle/

33build/

4−*.apk

5−*.aab

64

75# Kotlin

86.kotlin/

@@ -31,21 +29,4 @@ Thumbs.db

3129

3230# Nix

3331result

34−result-*

3532.direnv/

36−

37−# Local tooling / editor state (not part of the project)

38−.crush/

39−.crush.db

40−*.log

41−

42−# Rust

43−shared/target/

44−/target/

45−

46−# The `generated/` shared type sources ARE committed (regenerable via

47−# `cargo run --features typegen --bin codegen`); only the built JNI .so

48−# artifacts are ignored.

49−generated/jniLibs/

50−

51−# Gradle wrapper jar is committed so CI can run ./gradlew

AGENTS.mdnew file+197

@@ -0,0 +1,197 @@

1+# AGENTS.md

2+

3+Guidance for AI coding agents (and humans) working in this repository.

4+

5+## Project

6+

7+opencode-android is a native Android client (Kotlin + Jetpack Compose) for the

8+[`opencode serve`](https://opencode.ai/docs/server/) HTTP API. It talks to a

9+remote opencode server over REST plus a long-lived Server-Sent Events stream,

10+and renders conversations (markdown, diffs, tool calls, reasoning, images) with

11+an adaptive single-pane / two-pane Material 3 UI.

12+

13+- Application id / namespace: `soy.iko.opencode`

14+- Package root: `app/src/main/java/soy/iko/opencode`

15+- minSdk 26, compileSdk/targetSdk 37, JDK 17, Kotlin 2.2.x, AGP 9.2.x

16+- Single Gradle module (`:app`); no dynamic feature modules.

17+

18+## Build & environment

19+

20+A Nix flake provides the exact toolchain (JDK 17, Gradle, Android SDK 37, and a

21+Nix-built `aapt2` override because Gradle's bundled aapt2 segfaults on NixOS).

22+

23+```bash

24+nix develop # enter the dev shell (sets ANDROID_HOME, JAVA_HOME, GRADLE_OPTS)

25+./gradlew assembleDebug # -> app/build/outputs/apk/debug/app-debug.apk

26+./gradlew assembleRelease # R8-minified + resource-shrunk; signed only when OPENCODE_STORE_* env vars are set

27+```

28+

29+Outside Nix, you need JDK 17 and the Android SDK (platform 37, build-tools

30+37.0.0) installed manually; `ANDROID_HOME` / `ANDROID_SDK_ROOT` must point at it.

31+

32+Install on a connected device/emulator:

33+

34+```bash

35+adb install -r app/build/outputs/apk/debug/app-debug.apk

36+adb shell am start -n soy.iko.opencode/.MainActivity

37+```

38+

39+## Test, lint, and static analysis

40+

41+```bash

42+./gradlew testDebugUnitTest # JVM unit tests (JSON/reducer/ViewModel logic)

43+./gradlew detekt # static analysis; config: config/detekt/detekt.yml, baseline: app/detekt-baseline.xml

44+./gradlew lintDebug # Android Lint (abortOnError = true)

45+./gradlew connectedAndroidTest # instrumented tests; needs a running AVD or device

46+```

47+

48+- Unit tests live in `app/src/test/...` and run on the JVM. They use fakes from

49+ `app/src/test/java/soy/iko/opencode/ui/testing/TestFakes.kt` (Fake* subclasses

50+ that override the `open` members of the real stores/clients). JUnit 4 +

51+ `kotlinx-coroutines-test`; no Robolectric — `testOptions.unitTests.isReturnDefaultValues = true`

52+ stubs Android framework calls so tests brushing `Log.d` etc. don't need it.

53+- Instrumented tests live in `app/src/androidTest/...` and need a device.

54+- detekt runs with a baseline (`app/detekt-baseline.xml`) so only **new**

55+ findings block CI; existing ones are grandfathered.

56+- CI (`.github/workflows/build.yml`) runs: `testDebugUnitTest` → `detekt` →

57+ `lintDebug` → `assembleDebug` → `assembleRelease`, then uploads both APKs.

58+

59+## Running a server to develop against

60+

61+```bash

62+opencode serve --hostname 0.0.0.0 --port 4096

63+```

64+

65+Connect the app over LAN (`http://<host-ip>:4096`) or USB

66+(`adb reverse tcp:4096 tcp:4096` then `http://127.0.0.1:4096`). Auth is optional

67+(`OPENCODE_SERVER_PASSWORD`; username defaults to `opencode`). See the README's

68+"Set up a server and connect to it" section for full details.

69+

70+## Architecture

71+

72+Unidirectional data flow with manual DI, no annotation processing (no Hilt/KSP).

73+

74+```

75+OpencodeApp (Application)

76+ └─ AppContainer (service locator: profile/settings/draft stores, active connection,

77+ unread tracker, auto-reconnect, pending share / open-session signals)

78+ └─ OpencodeConnection (one per active server profile)

79+ ├─ HttpClient (Ktor + OkHttp, base URL + Basic auth + JSON + SSE)

80+ ├─ OpencodeApiClient (REST: sessions, messages, files, providers, agents, commands, permissions)

81+ ├─ EventStreamClient (long-lived GET /event SSE -> hot SharedFlow<BusEvent>)

82+ └─ SessionRepository (reduces BusEvents + REST seeds -> Flow<List<MessageWithParts>>)

83+ └─ MessageStore (in-memory reducer; internal, unit-tested)

84+

85+ViewModels (ui/<feature>/<Feature>ViewModel.kt)

86+ └─ expose StateFlow; Compose collects with collectAsStateWithLifecycle

87+ └─ built via ui/VmFactory.kt (viewModelFactory { initializer { ... } }) from the AppContainer

88+```

89+

90+Key invariants:

91+

92+- **Subscribe before you prompt.** `SessionRepository.observeMessages` collects

93+ the SSE stream *before* the initial REST load and before any prompt POST, so

94+ early streamed parts aren't missed. Preserve this ordering if you touch it.

95+- **Resilient decoding.** `OpencodeJson` registers `polymorphicDefaultDeserializer`

96+ for `Part`, `BusEvent`, `MessageInfo`, and `ToolState`, so an unknown

97+ discriminator decodes to an `Unknown*` / `ToolUnknown` variant instead of

98+ throwing. Never add a `when (event)` that isn't exhaustive or that crashes on

99+ `UnknownEvent` — the whole point is that a new server release can't break the

100+ client. Add new modeled variants alongside the `Unknown` fallback.

101+- **Conflated message stream.** `observeMessages` is `.conflate()`d so a burst of

102+ per-token snapshots doesn't back-pressure the reducer. Don't remove this.

103+- **Re-seed on SSE reconnect.** When `EventStreamClient.state` returns to

104+ `Connected` after a prior connection, the repository re-fetches messages from

105+ REST and merges (without pruning) under a generation counter so a stale fetch

106+ can't clobber a newer one. See `SessionRepository.kt` for the contract.

107+- **One Ktor client per profile.** `HttpClientFactory.create(profile)` carries

108+ the base URL, JSON negotiation, SSE plugin, and auth. Basic auth is sent

109+ eagerly (no 401 challenge round-trip) and only installed for HTTPS profiles;

110+ for HTTP profiles the `Authorization` header is set proactively in

111+ `defaultRequest` instead, and the reactive Auth plugin is deliberately NOT

112+ installed so credentials can't be re-sent silently on a cleartext 401.

113+- **Process lifetime.** `OpencodeApp` installs a `CrashLogger`, builds the

114+ `AppContainer`, and registers a JVM shutdown hook (since `onTerminate()` isn't

115+ called on real devices) that cancels the app scope and closes the active

116+ connection. `AppContainer.shutdown()` is guarded against double-invocation.

117+

118+## Source map

119+

120+```

121+data/model Wire models (kotlinx.serialization, sealed polymorphism, @Immutable)

122+data/network Ktor: HttpClientFactory, OpencodeApiClient (REST), EventStreamClient (SSE),

123+ OpencodeJson (shared Json), NetworkConfig (all tuning constants)

124+data/repo SessionRepository + MessageStore (reducer), ProfileStore (DataStore +

125+ EncryptedSharedPreferences), SettingsStore (theme/dynamic color),

126+ DraftStore (per-session draft persistence), CrashLogger, ErrorKind

127+di AppContainer (service locator) + OpencodeConnection (per-server bundle)

128+notification NotificationChannels, RunForegroundService (holds process priority

129+ during a run), SessionNotifications (completion notifications)

130+ui OpencodeApp (NavHost), Routes, VmFactory, theme/

131+ui/chat ChatScreen + ChatViewModel, message bubbles, part rendering,

132+ agent/model/command picker sheets, permission dialog, export

133+ui/session SessionListScreen + ViewModel, TwoPaneSessionChat (≥840dp)

134+ui/server ServerListScreen + ServerEditScreen (+ ViewModels)

135+ui/file FileBrowserScreen + FileViewScreen (+ ViewModels)

136+ui/settings SettingsScreen, DiagnosticsScreen (crash reports)

137+util Coroutines.kt (runCatchingCancellable, safeExceptionSummary)

138+```

139+

140+## Conventions

141+

142+- **No comments unless asked** — existing code has extensive `//` comments

143+ explaining *why* (invariants, race conditions, security rationale). When you

144+ add code, match that style only for genuinely non-obvious invariants; don't

145+ narrate *what* the code does.

146+- **`runCatchingCancellable`** (`util/Coroutines.kt`) instead of `runCatching`

147+ inside coroutines — plain `runCatching` swallows `CancellationException` and

148+ breaks structured concurrency. Use it for any try/catch in a suspend context.

149+- **`safeExceptionSummary`** for logging Ktor exceptions — `ClientRequestException`

150+ messages embed the full request URL (may contain auth/paths); never log the

151+ raw exception from an HTTP call. Crash reports scrub URLs via a regex too.

152+- **`open` classes with protected no-arg test constructors.** Stores, the API

153+ client, `EventStreamClient`, `OpencodeConnection`, and `AppContainer` are

154+ `open` and have a `protected constructor()` so tests can subclass and override

155+ individual members without instantiating Android frameworks. Keep this pattern

156+ when adding new injectable components.

157+- **`NetworkConfig`** holds all tuning constants (timeouts, backoffs, buffer

158+ sizes, layout thresholds, debounce delays). Add new magic numbers here rather

159+ than scattering literals.

160+- **REST path encoding.** `OpencodeApiClient` URL-encodes path segments via

161+ `encode()` (e.g. `session/${encode(id)}`). Deep-link session ids are validated

162+ against `[A-Za-z0-9_-]+` in `MainActivity` to prevent path traversal.

163+- **Idempotency keys.** `sendPrompt` and `runCommand` generate the

164+ `Idempotency-Key` header *before* `withRetry` so all retry attempts share it.

165+ Preserve this when adding mutating endpoints.

166+- **`withRetry`** wraps all REST reads and the permission response. Transient

167+ failures back off with jitter; see `NetworkConfig` for the parameters.

168+- **Compose:** `collectAsStateWithLifecycle` everywhere; `WhileSubscribed` with a

169+ 5s grace period (`stateFlowSubscriptionTimeoutMs`). `@Composable` functions

170+ use PascalCase (detekt `FunctionNaming` disabled for this reason). Long

171+ composables and long parameter lists are accepted (detekt `LongMethod` /

172+ `LongParameterList` disabled).

173+- **Manifest:** cleartext HTTP is permitted via `network_security_config.xml`

174+ (opencode serves plain `http://`). `enableOnBackInvokedCallback="true"` for

175+ Android 14 predictive back. Deep link scheme `opencode://session/{id}`.

176+- **`@Immutable`** on data models exposed to Compose so they skip recomposition

177+ correctly.

178+- **Kotlin code style: `official`** (see `gradle.properties`).

179+

180+## Things to avoid

181+

182+- Don't add Hilt/Dagger/KSP — DI is intentionally hand-written (`AppContainer`).

183+- Don't add Robolectric — JVM tests use `isReturnDefaultValues = true` stubs and

184+ fakes; only device-dependent code goes in `androidTest`.

185+- Don't run `nix flake check` manually (CI only — per repo convention).

186+- Don't read or query `/nix/store` (extremely large — per repo convention).

187+- Don't introduce new detekt findings; the baseline only grandfathers existing

188+ ones. Run `./gradlew detekt` before considering work done.

189+- Don't log raw Ktor/OkHttp exceptions — use `safeExceptionSummary`.

190+- Don't make a `when (BusEvent)` / `when (Part)` non-exhaustive; the `Unknown*`

191+ variants exist for forward compatibility and must remain reachable.

192+

193+## Renovate

194+

195+`renovate.json` keeps dependencies current: Kotlin+AGP and Compose are grouped;

196+Ktor is grouped; AndroidX majors are held for manual review (pinned to

197+compileSdk 37). Dependency upgrades land via Renovate PRs, not manual bumps.

CLAUDE.mdmode 100644 → 120000+1−40

@@ -1,40 +0,0 @@

1−# opencode-android

2−

3−Native Android client for the opencode server, built with Crux (Rust core), Kotlin, and Jetpack Compose.

4−

5−## Architecture

6−

7−- **shared/** — Rust Crux core (canonical spec, unit-tested with `cargo test`)

8−- **app/** — Android shell with Kotlin port of the reducer (`OpencodeCore`)

9−- All app logic in `OpencodeCore.kt`; UI is a thin Compose shell

10−- Three screens: Connect → Sessions → Chat

11−

12−## Key Files

13−

14−- `app/src/main/java/soy/iko/opencode/core/OpencodeCore.kt` — reducer, all state management

15−- `app/src/main/java/soy/iko/opencode/core/ViewModel.kt` — UiState, Event, data classes

16−- `app/src/main/java/soy/iko/opencode/core/Protocol.kt` — wire types, SSE event parser

17−- `app/src/main/java/soy/iko/opencode/core/HttpClient.kt` — OkHttp wrapper

18−- `app/src/main/java/soy/iko/opencode/core/SseClient.kt` — SSE stream client

19−- `app/src/main/java/soy/iko/opencode/ui/screens/` — ConnectScreen, SessionsScreen, ChatScreen

20−- `app/src/main/java/soy/iko/opencode/ui/components/MessageBubble.kt` — message rendering

21−

22−## Build

23−

24−```sh

25−source .buildenv.sh

26−nix develop -c ./gradlew assembleDebug

27−```

28−

29−## Code Conventions

30−

31−- Kotlin + Jetpack Compose (Material 3)

32−- State flows through `MutableStateFlow<UiState>` → `collectAsStateWithLifecycle`

33−- All state mutations on main dispatcher (viewModelScope)

34−- Network I/O on `Dispatchers.IO` inside HttpClient/SseClient

35−- Keep the Rust core and Kotlin port behaviourally identical

36−

37−## Version Control

38−

39−- Uses `jj` (jujutsu) colocated with git

40−- Push to master: `jj git push --change @` to create a bookmark, or commit then push

@@ -0,0 +1 @@

1+AGENTS.md

README.md+64−126

@@ -1,153 +1,91 @@

11# opencode-android

22

3−A native Android client for the [**opencode**](https://opencode.ai) server (the

4−`sst/opencode` AI coding agent), built with **Crux** (a Rust core), **Kotlin**,

5−and **Jetpack Compose**.

3+A native Android client (Kotlin + Jetpack Compose) for the [`opencode serve`](https://opencode.ai/docs/server/) HTTP API.

64

7−Connect to a running `opencode serve`, browse and create sessions, and chat with

8−the agent — assistant replies (text, reasoning, and tool calls) stream in live

9−over the server's SSE event stream.

5+Application id: `soy.iko.opencode`

106

11−<p align="center"><em>Connect → Sessions → Chat, with token-by-token streaming.</em></p>

7+## Set up a server and connect to it

128

13−## Architecture

14−

15−The app follows the Crux pattern: **all application logic lives in a pure,

16−platform-agnostic core; the platform is a thin shell** that renders the core's

17−view model, sends it events, and performs the side effects it requests.

18−

19−```

20−┌─────────────────────────── shared/ (Rust) ───────────────────────────┐

21−│ Crux core — the single source of truth │

22−│ • Model / Event / Effect / ViewModel │

23−│ • update(): connect+auth, sessions, chat, SSE stream application │

24−│ • crux_http for HTTP effects; unit-tested with `cargo test` │

25−└───────────────────────────────────────────────────────────────────────┘

26− ▲ mirrored, behaviour-for-behaviour

27−┌─────────────────────────── app/ (Kotlin) ────────────────────────────┐

28−│ Jetpack Compose shell │

29−│ • OpencodeCore — Kotlin port of the reducer (same ViewModel) │

30−│ • HttpClient (OkHttp) + SseClient (okhttp-sse) — the effects │

31−│ • Compose UI: Connect / Sessions / Chat │

32−└───────────────────────────────────────────────────────────────────────┘

33−```

34−

35−### Why a Kotlin port instead of a JNI `.so`?

36−

37−Crux normally compiles the Rust core to a native library and the shell talks to

38−it over an FFI bridge. That requires an Android cross-compilation toolchain

39−(NDK + a Rust `std` for the `*-linux-android` targets). This project's dev

40−environment intentionally ships **without** an NDK, so instead:

41−

42−- The **Rust core is the canonical specification** of behaviour and is fully

43− unit-tested (`cd shared && cargo test`).

44−- The **Android shell runs `OpencodeCore`**, a faithful Kotlin port of the same

45− reducer, driving an identical `UiState`/`ViewModel`.

46−

47−The FFI boundary is kept clean, so the day an NDK is available the Kotlin port

48−can be swapped for the compiled `.so` behind the same seam. The crate already

49−builds as a `cdylib`/`staticlib` and a `codegen` binary is wired for Crux

50−type-generation.

51−

52−## Project layout

53−

54−```

55−flake.nix Reproducible dev shell (JDK 17, Gradle, Rust, Android SDK 35)

56−shared/ Crux core (Rust)

57− src/app.rs App: Model, Event, Effect, ViewModel, update, view, tests

58− src/protocol.rs Lenient serde wire types for the opencode HTTP + SSE API

59− src/bin/codegen.rs Type-generation entry point (feature = "typegen")

60−generated/ Crux-generated FFI-shared JVM types (from `codegen`)

61−app/ Android app (Kotlin + Compose)

62− src/main/java/soy/iko/opencode/

63− core/ OpencodeCore (reducer port), Protocol, HttpClient, SseClient

64− ui/ Compose screens (Connect/Sessions/Chat), theme, components

65− MainActivity.kt, CoreViewModel.kt

66−```

67−

68−## Getting started

9+This app is a client for the [`opencode serve`](https://opencode.ai/docs/server/) HTTP API, so you

10+need an opencode server running somewhere reachable from your device.

6911

70−### Dev shell

12+### 1. Start the server

7113

72−Everything you need is provided by the Nix flake:

14+On the host that has your project and opencode installed:

7315

74−```sh

75−nix develop # or: direnv allow (an .envrc with `use flake` is included)

16+```bash

17+opencode serve --hostname 0.0.0.0 --port 4096

7618```

7719

78−This puts JDK 17, Gradle, `rustc`/`cargo`, and the Android SDK (platform 35,

79−build-tools 35.0.0) on your `PATH`.

20+Useful flags:

8021

81−### Build & test

22+| Flag | Default | Description |

23+| --- | --- | --- |

24+| `--port` | `4096` | Port to listen on |

25+| `--hostname` | `127.0.0.1` | Hostname/interface to bind (`0.0.0.0` exposes it on your LAN) |

26+| `--mdns` | `false` | Enable mDNS discovery |

27+| `--cors` | `[]` | Extra browser origins to allow (repeatable) |

8228

83−```sh

84−# Rust core — logic + streaming unit tests

85−cd shared && cargo test

86−

87−# Android app — debug APK

88−./gradlew assembleDebug # -> app/build/outputs/apk/debug/app-debug.apk

89−

90−# Android unit tests + lint

91−./gradlew testDebugUnitTest lintDebug

92−```

29+The server publishes an OpenAPI 3.1 spec at `http://<hostname>:<port>/doc`.

9330

94−### Run against a server

31+### 2. (Optional) Add authentication

9532

96−Start opencode's server on your machine or LAN:

33+opencode has no auth by default. To protect the server with HTTP Basic auth:

9734

98−```sh

99−opencode serve --port 4096 # optionally behind OPENCODE_SERVER_PASSWORD

35+```bash

36+OPENCODE_SERVER_PASSWORD=your-password opencode serve --hostname 0.0.0.0 --port 4096

10037```

10138

102−Install the APK, launch the app, and enter the server URL (e.g.

103−`http://192.168.1.10:4096`). If the server was started with a password the app

104−detects the `401`, shows credential fields, and connects with HTTP Basic auth.

39+The username defaults to `opencode` (override with `OPENCODE_SERVER_USERNAME`). Enter these in the

40+app's add-server dialog.

10541

106−> Cleartext HTTP is enabled so you can reach a `http://` server on your LAN.

42+### 3. Connect from the app

10743

108−## The opencode API this client speaks

44+**Over Wi-Fi / LAN** — add a server with base URL `http://<host-LAN-ip>:4096`.

10945

110−- **Connect / auth** — `GET /global/health` probes reachability; a `401` triggers

111− HTTP Basic auth.

112−- **Sessions** — `GET /session`, `POST /session`, `DELETE /session/{id}`.

113−- **Messages** — `GET /session/{id}/message` (each item is `{ info, parts }`).

114−- **Send** — `POST /session/{id}/prompt_async` (returns immediately; the reply

115− streams over SSE).

116−- **Cancel** — `POST /session/{id}/abort`.

117−- **Stream** — `GET /event` (SSE). The client applies `message.updated`,

118− `message.part.updated` (text/reasoning/tool, with deltas), `message.removed`,

119− `session.idle` (clears the "generating" state), `session.error`, and

120− `session.{created,updated,deleted}` incrementally. Unknown event types are

121− ignored so new server versions don't break the stream.

46+**Over USB only** — forward the port to the device and point the app at localhost:

12247

123−## Continuous integration & releases

124−

125−- **CI** (`.github/workflows/build.yml`) runs on pushes to `master` and PRs: it

126− unit-tests the Crux core (`cargo test`), runs the Android unit tests + lint,

127− and builds the debug APK (uploaded as an artifact).

128−- **Releases** (`.github/workflows/release.yml`): push a version tag to cut a

129− release — it builds a minified, signed release APK and publishes a GitHub

130− Release with the APK attached and a signed build-provenance attestation.

131−

132− ```sh

133− git tag v1.0.0 && git push origin v1.0.0 # or run the workflow manually

134− ```

48+```bash

49+adb reverse tcp:4096 tcp:4096

50+```

13551

136− The tag name becomes the version (a manual run uses a `YYYY.MM.DD.HHMM`

137− timestamp), stamped into the APK via `-PversionName/-PversionCode`.

52+Then use base URL `http://127.0.0.1:4096` in the app.

13853

139− **Signing:** set the repo secrets `OPENCODE_STORE_BASE64` (base64 of your

140− keystore), `OPENCODE_STORE_PASSWORD`, `OPENCODE_KEY_ALIAS`, and

141− `OPENCODE_KEY_PASSWORD` to sign with your own key. Without them the release

142− build falls back to the debug key, so the APK is still installable.

54+> The app permits cleartext HTTP because opencode serves plain `http://`. If you terminate TLS with

55+> a reverse proxy, use an `https://` base URL instead.

14356

144−## Notes & limitations

57+## Architecture

14558

146−- Rendering covers text, reasoning, and tool-call parts. Interactive tool

147− **permission** prompts (`permission.updated`) are not yet surfaced.

148−- Model/agent selection uses the server's configured default (no picker yet).

149−- No `.so` is built in this environment (see *Architecture* above).

59+- **Ktor 3 (OkHttp engine)** for REST + the long-lived `GET /event` SSE stream.

60+- **kotlinx.serialization** with sealed polymorphism for opencode's discriminated unions

61+ (`Part`/`type`, `MessageInfo`/`role`, `ToolState`/`status`, `BusEvent`/`type`). Unknown

62+ discriminator values fall back to `Unknown*` variants (`OpencodeJson`) so a new server release

63+ can't break decoding.

64+- **Manual DI** (`AppContainer` on the `Application`) — no Hilt/KSP.

65+- **Unidirectional state**: `EventStreamClient` exposes the SSE stream as a hot `SharedFlow`;

66+ `SessionRepository` reduces events into per-session message state; ViewModels expose `StateFlow`;

67+ Compose collects with `collectAsStateWithLifecycle`.

68+- The repository subscribes to `/event` **before** the prompt POST so no early streamed part is missed.

69+

70+Source map: `data/network` (Ktor, SSE, JSON), `data/model` (wire models), `data/repo`

71+(reducer + profile persistence), `di` (container/connection), `ui/<feature>` (Compose screens).

72+

73+## Build

74+

75+```bash

76+nix develop # JDK 17, Gradle 9.6.1, Android SDK 37, aapt2 override

77+./gradlew assembleDebug # -> app/build/outputs/apk/debug/app-debug.apk

78+./gradlew assembleRelease # R8-minified + resource-shrunk release APK

79+./gradlew testDebugUnitTest # JVM tests for the JSON/serialization layer

80+./gradlew detekt # static analysis (config: config/detekt/detekt.yml)

81+./gradlew lintDebug # Android Lint

82+./gradlew connectedAndroidTest # device/emulator tests (needs an AVD)

83+```

15084

151−## License

85+## Install & run

15286

153−Apache-2.0.

87+```bash

88+adb install -r app/build/outputs/apk/debug/app-debug.apk

89+adb shell am start -n soy.iko.opencode/.MainActivity

90+adb logcat --pid=$(adb shell pidof soy.iko.opencode)

91+```

app/build.gradle.kts+116−46

@@ -1,59 +1,66 @@

11plugins {

22 alias(libs.plugins.android.application)

3− alias(libs.plugins.kotlin.android)

4− alias(libs.plugins.kotlin.compose)

53 alias(libs.plugins.kotlin.serialization)

4+ alias(libs.plugins.kotlin.compose)

5+ alias(libs.plugins.detekt)

66}

77

8−// Version is overridable from the release workflow via

9−// `-PversionName=... -PversionCode=...`; falls back to sensible defaults locally.

10−val appVersionName = (project.findProperty("versionName") as String?) ?: "0.1.0"

11−val appVersionCode = (project.findProperty("versionCode") as String?)?.toIntOrNull() ?: 1

8+/**

9+ * Monotonically increasing versionCode: the git commit count on HEAD, so each release

10+ * ships a strictly higher code (never a "downgrade" block) without manual bookkeeping.

11+ * Falls back to 1 when git or the history isn't available (e.g. a plain source export).

12+ */

13+val gitCommitCount: Int = runCatching {

14+ providers.exec {

15+ commandLine("git", "rev-list", "--count", "HEAD")

16+ }.standardOutput.asText.get().trim().toInt()

17+}.getOrDefault(1)

1218

13−// A release keystore is supplied by CI (decoded from a secret) via env vars.

14−// When it's absent — local builds, or CI before signing is configured — the

15−// release build falls back to the debug signing config so the APK is still

16−// installable, rather than producing an uninstallable unsigned APK.

17−val releaseStorePath: String? = System.getenv("OPENCODE_STORE_FILE")

18−val hasReleaseKeystore = releaseStorePath != null && file(releaseStorePath).exists()

19+// Optional versionName override supplied via `-PversionName=...` (used by the

20+// release workflow to stamp the commit-date version into the APK). Falls back to

21+// the hard-coded version when absent so local builds are unaffected.

22+val versionNameOverride: String? = providers.gradleProperty("versionName").orNull

1923

2024android {

2125 namespace = "soy.iko.opencode"

22− compileSdk = 35

26+ compileSdk = 37

27+ buildToolsVersion = "37.0.0"

2328

2429 defaultConfig {

2530 applicationId = "soy.iko.opencode"

2631 minSdk = 26

27− targetSdk = 35

28− versionCode = appVersionCode

29− versionName = appVersionName

30−

32+ targetSdk = 37

33+ // Monotonically increasing across builds: derived from the git commit count so

34+ // each release ships a strictly higher versionCode without manual bookkeeping

35+ // (and never triggers a "downgrade" install block). Falls back to 1 when the

36+ // .git history isn't available (e.g. a plain source export).

37+ versionCode = gitCommitCount

38+ versionName = versionNameOverride ?: "0.1.0"

3139 testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"

3240 }

3341

34− signingConfigs {

35− if (hasReleaseKeystore) {

36− create("release") {

37− storeFile = file(releaseStorePath!!)

38− storePassword = System.getenv("OPENCODE_STORE_PASSWORD")

39− keyAlias = System.getenv("OPENCODE_KEY_ALIAS")

40− keyPassword = System.getenv("OPENCODE_KEY_PASSWORD")

41− }

42+ // Release builds are signed when keystore credentials are supplied via env vars

43+ // (so CI can publish an installable APK). When the env vars are absent, the

44+ // release build falls back to unsigned — same behavior as before — so local

45+ // builds keep working without any keystore setup.

46+ val releaseSigning = providers.environmentVariable("OPENCODE_STORE_FILE").orNull?.let { path ->

47+ signingConfigs.create("release") {

48+ storeFile = file(path)

49+ storePassword = providers.environmentVariable("OPENCODE_STORE_PASSWORD").orNull

50+ keyAlias = providers.environmentVariable("OPENCODE_KEY_ALIAS").orNull

51+ keyPassword = providers.environmentVariable("OPENCODE_KEY_PASSWORD").orNull

4252 }

4353 }

4454

4555 buildTypes {

4656 release {

4757 isMinifyEnabled = true

58+ isShrinkResources = true

4859 proguardFiles(

4960 getDefaultProguardFile("proguard-android-optimize.txt"),

5061 "proguard-rules.pro",

5162 )

52− signingConfig = if (hasReleaseKeystore) {

53− signingConfigs.getByName("release")

54− } else {

55− signingConfigs.getByName("debug")

56− }

63+ releaseSigning?.let { signingConfig = it }

5764 }

5865 }

5966

@@ -62,42 +69,105 @@ android {

6269 targetCompatibility = JavaVersion.VERSION_17

6370 }

6471

65− kotlinOptions {

66− jvmTarget = "17"

72+ // Use the kotlin { compilerOptions {} } block (the kotlinOptions DSL is deprecated

73+ // in favor of the type-safe extension exposed by the Kotlin Gradle plugin).

74+ kotlin {

75+ compilerOptions {

76+ jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17)

77+ }

6778 }

6879

6980 buildFeatures {

7081 compose = true

7182 }

7283

84+ lint {

85+ // Fail CI on real errors. Warnings are reported but don't break the build so

86+ // minor/style issues don't gate development.

87+ abortOnError = true

88+ // Dependency upgrades are tracked by Renovate, so don't lint for them here.

89+ // ProduceStateDoesNotAssignValue false-positives on valid produceState calls that

90+ // assign `value` via a conditional/`withContext` expression (see FileViewScreen's

91+ // match-index scan), so it's disabled rather than worked around at each call site.

92+ // InvalidFragmentVersionForActivityResult false-positives on FragmentActivity

93+ // (the app doesn't use fragments, but BiometricPrompt requires FragmentActivity).

94+ // LocalContextGetResourceValueCall flags context.getString() inside LaunchedEffect /

95+ // remember lambdas where stringResource() can't be called (not a @Composable scope);

96+ // the check is overly aggressive for valid non-composable coroutine contexts.

97+ disable += setOf(

98+ "GradleDependency",

99+ "AndroidGradlePluginVersion",

100+ "ProduceStateDoesNotAssignValue",

101+ "InvalidFragmentVersionForActivityResult",

102+ "LocalContextGetResourceValueCall",

103+ )

104+ }

105+

73106 packaging {

74107 resources {

75108 excludes += "/META-INF/{AL2.0,LGPL2.1}"

76109 }

77110 }

111+

112+ testOptions {

113+ unitTests {

114+ // Return default values for Android framework stubs (e.g. Log.d, Context.getString)

115+ // instead of throwing "not mocked" exceptions, so JVM unit tests that brush

116+ // against Android APIs don't need Robolectric.

117+ isReturnDefaultValues = true

118+ isIncludeAndroidResources = true

119+ }

120+ }

78121}

79122

80123dependencies {

81124 implementation(libs.androidx.core.ktx)

82− implementation(libs.androidx.lifecycle.runtime.ktx)

83− implementation(libs.androidx.lifecycle.runtime.compose)

84− implementation(libs.androidx.lifecycle.viewmodel.ktx)

85− implementation(libs.androidx.lifecycle.viewmodel.compose)

125+ implementation(libs.androidx.core.splashscreen)

126+ implementation(libs.androidx.window)

86127 implementation(libs.androidx.activity.compose)

128+ implementation(libs.androidx.lifecycle.viewmodel.compose)

129+ implementation(libs.androidx.lifecycle.runtime.compose)

130+ implementation(libs.androidx.navigation.compose)

87131

88− implementation(platform(libs.androidx.compose.bom))

89− implementation(libs.androidx.compose.ui)

90− implementation(libs.androidx.compose.ui.graphics)

91− implementation(libs.androidx.compose.ui.tooling.preview)

92− implementation(libs.androidx.compose.material3)

93− implementation(libs.androidx.compose.material.icons.extended)

94− debugImplementation(libs.androidx.compose.ui.tooling)

132+ implementation(platform(libs.compose.bom))

133+ implementation(libs.compose.ui)

134+ implementation(libs.compose.ui.graphics)

135+ implementation(libs.compose.ui.tooling.preview)

136+ implementation(libs.compose.material3)

137+ implementation(libs.compose.material.icons.extended)

138+ debugImplementation(libs.compose.ui.tooling)

139+

140+ implementation(libs.ktor.client.core)

141+ implementation(libs.ktor.client.okhttp)

142+ implementation(libs.ktor.client.content.negotiation)

143+ implementation(libs.ktor.serialization.kotlinx.json)

144+ implementation(libs.ktor.client.auth)

95145

96− implementation(libs.kotlinx.coroutines.android)

97146 implementation(libs.kotlinx.serialization.json)

98− implementation(libs.okhttp)

99− implementation(libs.okhttp.sse)

147+ implementation(libs.kotlinx.coroutines.android)

148+

149+ implementation(libs.androidx.datastore.preferences)

150+ implementation(libs.androidx.security.crypto)

151+ implementation(libs.androidx.biometric)

152+ implementation(libs.coil.compose)

153+ implementation(libs.coil.network.okhttp)

154+ implementation(libs.markdown.renderer)

155+ implementation(libs.markdown.renderer.m3)

100156

101157 testImplementation(libs.junit)

102158 testImplementation(libs.kotlinx.coroutines.test)

159+ testImplementation(libs.ktor.client.mock)

160+

161+ androidTestImplementation(libs.androidx.test.ext.junit)

162+ androidTestImplementation(libs.androidx.test.runner)

163+ androidTestImplementation(libs.androidx.test.core)

164+ androidTestImplementation(libs.kotlinx.coroutines.test)

165+}

166+

167+detekt {

168+ buildUponDefaultConfig = true

169+ // Carry forward the current baseline so CI only fails on *new* findings;

170+ // existing issues are grandfathered rather than blocking the migration.

171+ baseline = file("detekt-baseline.xml")

172+ config.setFrom("$rootDir/config/detekt/detekt.yml")

103173}

app/detekt-baseline.xmlnew file+33

@@ -0,0 +1,33 @@

1+<?xml version="1.0" ?>

2+<SmellBaseline>

3+ <ManuallySuppressedIssues/>

4+ <CurrentIssues>

5+ <ID>ComplexCondition:ChatScreen.kt$searchActive &amp;&amp; searchQuery.isNotEmpty() &amp;&amp; searchMessages.isEmpty() &amp;&amp; messages.isNotEmpty()</ID>

6+ <ID>ComplexCondition:PartRenderer.kt$part.isImage &amp;&amp; imageContext != null &amp;&amp; (part.source != null || !part.url.isNullOrBlank())</ID>

7+ <ID>ComplexCondition:SessionListViewModel.kt$SessionListState$q.isEmpty() &amp;&amp; pinnedIds.isEmpty() &amp;&amp; noArchivedHidden &amp;&amp; directoryFilter == null</ID>

8+ <ID>CyclomaticComplexMethod:AppContainer.kt$AppContainer$@OptIn(ExperimentalCoroutinesApi::class) private fun observeMessageActivity()</ID>

9+ <ID>CyclomaticComplexMethod:ChatScreen.kt$@OptIn(ExperimentalMaterial3Api::class) @Composable fun ChatScreen( container: AppContainer, sessionId: String, onBack: () -&gt; Unit, onOpenFile: ((String) -&gt; Unit)? = null, onOpenSession: ((String) -&gt; Unit)? = null, focusMessageId: String? = null, onEditProfile: ((String) -&gt; Unit)? = null, )</ID>

10+ <ID>CyclomaticComplexMethod:CodeHighlighter.kt$fun highlightLine(line: String, syntax: FileSyntax, palette: HighlightPalette, state: BlockCommentState): AnnotatedString</ID>

11+ <ID>CyclomaticComplexMethod:CodeHighlighter.kt$private fun findNumberEnd(line: String, start: Int): Int</ID>

12+ <ID>CyclomaticComplexMethod:ConversationExport.kt$fun buildConversationMarkdown(messages: List&lt;MessageWithParts&gt;, title: String?): String</ID>

13+ <ID>CyclomaticComplexMethod:DiagnosticsScreen.kt$@OptIn(ExperimentalMaterial3Api::class) @Composable fun DiagnosticsScreen(onBack: () -&gt; Unit)</ID>

14+ <ID>CyclomaticComplexMethod:EventStreamClient.kt$EventStreamClient$private fun stream(): Flow&lt;BusEvent&gt;</ID>

15+ <ID>CyclomaticComplexMethod:FileViewScreen.kt$@OptIn(ExperimentalMaterial3Api::class) @Composable fun FileViewScreen( container: AppContainer, path: String, onBack: () -&gt; Unit, initialLine: Int? = null, )</ID>

16+ <ID>CyclomaticComplexMethod:GlobalSearchScreen.kt$@OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class) @Composable fun GlobalSearchScreen( container: AppContainer, onOpenSession: (String, String?) -&gt; Unit, onBack: () -&gt; Unit, )</ID>

17+ <ID>CyclomaticComplexMethod:MainActivity.kt$MainActivity$private fun handleIntent(intent: Intent?)</ID>

18+ <ID>CyclomaticComplexMethod:OpencodeApp.kt$@Composable fun OpencodeApp(container: AppContainer)</ID>

19+ <ID>CyclomaticComplexMethod:ServerListScreen.kt$@OptIn(ExperimentalMaterial3Api::class) @Composable fun ServerListScreen( container: AppContainer, onConnected: () -&gt; Unit, onAddProfile: () -&gt; Unit, onServerSettings: (String) -&gt; Unit, )</ID>

20+ <ID>CyclomaticComplexMethod:SessionListScreen.kt$@OptIn(ExperimentalMaterial3Api::class, androidx.compose.foundation.ExperimentalFoundationApi::class) @Composable fun SessionListScreen( container: AppContainer, onOpenSession: (String) -&gt; Unit, onDisconnect: () -&gt; Unit, onOpenFiles: () -&gt; Unit, onOpenSettings: () -&gt; Unit, onAddServer: () -&gt; Unit, onOpenSearch: () -&gt; Unit = {}, onEditProfile: ((String) -&gt; Unit)? = null, // Incremented by a host (the two-pane empty-detail pane) to open the new-session // directory picker, so that pane shares this screen's dialog instead of bypassing it. externalNewSessionTrigger: Int = 0, selectedSessionId: String? = null, )</ID>

21+ <ID>CyclomaticComplexMethod:SettingsScreen.kt$@OptIn(ExperimentalMaterial3Api::class, ExperimentalCoroutinesApi::class) @Composable fun SettingsScreen( container: AppContainer, onBack: () -&gt; Unit, onManageServers: () -&gt; Unit, onOpenDiagnostics: () -&gt; Unit, onOpenUsage: () -&gt; Unit = {}, onOpenMcp: () -&gt; Unit = {}, onEditProfile: ((String) -&gt; Unit)? = null, )</ID>

22+ <ID>LargeClass:AppContainer.kt$AppContainer</ID>

23+ <ID>LargeClass:SessionListViewModel.kt$SessionListViewModel : ViewModel</ID>

24+ <ID>MatchingDeclarationName:DiffView.kt$DiffLine</ID>

25+ <ID>MatchingDeclarationName:RemoteImage.kt$ImageLoadContext</ID>

26+ <ID>TooManyFunctions:AppContainer.kt$AppContainer</ID>

27+ <ID>TooManyFunctions:ChatViewModel.kt$ChatViewModel : ViewModel</ID>

28+ <ID>TooManyFunctions:CrashLogger.kt$CrashLogger</ID>

29+ <ID>TooManyFunctions:MessageBubble.kt$soy.iko.opencode.ui.chat.MessageBubble.kt</ID>

30+ <ID>TooManyFunctions:OpencodeApiClient.kt$OpencodeApiClient</ID>

31+ <ID>TooManyFunctions:SessionNotifications.kt$SessionNotifications</ID>

32+ </CurrentIssues>

33+</SmellBaseline>

app/proguard-rules.pro+48−13

@@ -1,16 +1,51 @@

1−# kotlinx.serialization — keep generated serializers and @Serializable metadata.

2−-keepattributes *Annotation*, InnerClasses

1+# --- kotlinx.serialization ---

2+# The plugin generates serializers; keep them and the $$serializer companion members.

3+-keepattributes *Annotation*, InnerClasses, Signature, Exceptions

34-dontnote kotlinx.serialization.**

4−

5−-keepclassmembers class **$$serializer { *; }

6−-keepclasseswithmembers class * {

7− @kotlinx.serialization.Serializable <methods>;

5+-keepclassmembers class soy.iko.opencode.** {

6+ *** Companion;

7+}

8+-keepclasseswithmembers class soy.iko.opencode.** {

9+ kotlinx.serialization.KSerializer serializer(...);

10+}

11+# Keep @Serializable classes themselves so their generated serializers can reference them.

12+-keep,includedescriptorclasses class soy.iko.opencode.**$$serializer { *; }

13+-keepclassmembers class soy.iko.opencode.** {

14+ *** Companion;

815}

9−-if @kotlinx.serialization.Serializable class **

10−-keep, allowobfuscation, allowshrinking class <1>

16+# Keep the serializable model classes (reflection-free serializer lookup needs the class).

17+# Covers ALL @Serializable classes in the app — not just data.model — because several

18+# classes used for persistent storage live elsewhere (OutboxMessage/PersistedAttachment in

19+# data/repo, StoredProfile in ProfileStore, Backup* in BackupManager, RecentSession, …)

20+# and R8 stripping/renaming their fields would break on-disk deserialization in release.

21+-keep @kotlinx.serialization.Serializable class soy.iko.opencode.** { *; }

22+

23+# --- Ktor / OkHttp (HTTP client + SSE) ---

24+# Don't warn about missing optional dependencies; keep only the classes that are

25+# accessed via reflection (Ktor engine registration, OkHttp internals that R8

26+# would otherwise strip). Narrow keeps instead of `-keep class io.ktor.** { *; }`

27+# so R8 can still eliminate dead code and shrink the APK.

28+-dontwarn io.ktor.**

29+-dontwarn okhttp3.**

30+-dontwarn okio.**

31+-dontwarn org.slf4j.**

32+-dontwarn org.jetbrains.annotations.**

33+# Ktor loads engines and plugins via ServiceLoader — keep the service files.

34+-keep class io.ktor.client.engine.** { *; }

35+-keep class io.ktor.client.plugins.** { *; }

36+-keep class io.ktor.serialization.** { *; }

37+-keep class io.ktor.http.** { *; }

38+# OkHttp uses reflection for platform detection and internal classes.

39+-keep class okhttp3.internal.platform.** { *; }

40+-keep class okhttp3.** { *; }

41+-keep class okio.** { *; }

42+

43+# --- Coil (image loading) ---

44+# Coil uses reflection for loadable decoders and the Compose integration.

45+-keep class coil.** { *; }

46+-keep class coil3.** { *; }

47+-dontwarn coil.**

1148

12−# OkHttp / okio — platform-specific bits referenced reflectively.

13−-dontwarn okhttp3.internal.platform.**

14−-dontwarn org.conscrypt.**

15−-dontwarn org.bouncycastle.**

16−-dontwarn org.openjsse.**

49+# --- androidx.security.crypto pulls in Tink, which references compile-only

50+# com.google.errorprone annotations. They aren't on the runtime classpath.

51+-dontwarn com.google.errorprone.annotations.**

app/src/androidTest/java/soy/iko/opencode/ApplicationBootstrapTest.ktnew file+36

@@ -0,0 +1,36 @@

1+package soy.iko.opencode

2+

3+import androidx.test.core.app.ApplicationProvider

4+import androidx.test.ext.junit.runners.AndroidJUnit4

5+import org.junit.Assert.assertNotNull

6+import org.junit.Assert.assertTrue

7+import org.junit.Test

8+import org.junit.runner.RunWith

9+

10+/**

11+ * Smoke test for the [OpencodeApp] Application bootstrap: the container and crash logger

12+ * are initialized on startup, and the notification channels are created.

13+ */

14+@RunWith(AndroidJUnit4::class)

15+class ApplicationBootstrapTest {

16+

17+ @Test

18+ fun containerIsInitialized() {

19+ val app = ApplicationProvider.getApplicationContext<OpencodeApp>()

20+ assertNotNull(app.container)

21+ assertNotNull(app.container.settingsStore)

22+ }

23+

24+ @Test

25+ fun notificationChannelsExist() {

26+ if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.O) return

27+ val context = ApplicationProvider.getApplicationContext<android.content.Context>()

28+ // Touching the app instance runs Application.onCreate, which creates the channels.

29+ ApplicationProvider.getApplicationContext<OpencodeApp>()

30+ val nm = context.getSystemService(android.content.Context.NOTIFICATION_SERVICE)

31+ as android.app.NotificationManager

32+ val ids = nm.notificationChannels.map { it.id }

33+ assertTrue("status channel should exist, got $ids", ids.contains("run_status"))

34+ assertTrue("completed channel should exist, got $ids", ids.contains("session_completed"))

35+ }

36+}

app/src/androidTest/java/soy/iko/opencode/data/repo/CrashLoggerTest.ktnew file+67

@@ -0,0 +1,67 @@

1+package soy.iko.opencode.data.repo

2+

3+import androidx.test.core.app.ApplicationProvider

4+import androidx.test.ext.junit.runners.AndroidJUnit4

5+import org.junit.Assert.assertEquals

6+import org.junit.Assert.assertNotNull

7+import org.junit.Assert.assertNull

8+import org.junit.Assert.assertTrue

9+import org.junit.Test

10+import org.junit.runner.RunWith

11+

12+/**

13+ * Instrumented test for [CrashLogger]. Runs on a device/emulator so it can exercise the

14+ * real app-private filesystem: a simulated crash is written, then read back, listed, and

15+ * deleted through the public API.

16+ */

17+@RunWith(AndroidJUnit4::class)

18+class CrashLoggerTest {

19+

20+ private val context = ApplicationProvider.getApplicationContext<android.content.Context>()

21+ private val logger = CrashLogger.get(context)

22+

23+ @Test

24+ fun writeReadDeleteRoundTrip() {

25+ logger.clearAll()

26+

27+ // Simulate an uncaught exception by invoking the report path directly.

28+ val report = writeFakeReport()

29+

30+ logger.refresh()

31+ assertEquals(1, logger.reportCount())

32+

33+ val content = logger.readReport(report)

34+ assertNotNull(content)

35+ assertTrue("report should contain the stack trace", content!!.contains("IllegalStateException"))

36+ assertTrue("report should contain device metadata", content.contains("Android:"))

37+

38+ logger.deleteReport(report)

39+ assertEquals(0, logger.reportCount())

40+ assertNull(logger.readReport(report))

41+ }

42+

43+ @Test

44+ fun clearAllRemovesEveryReport() {

45+ writeFakeReport("a")

46+ writeFakeReport("b")

47+ logger.refresh()

48+ assertTrue(logger.reportCount() >= 2)

49+

50+ logger.clearAll()

51+ assertEquals(0, logger.reportCount())

52+ }

53+

54+ private fun writeFakeReport(tag: String = "test"): String {

55+ val dir = java.io.File(context.filesDir, "crashes").apply { mkdirs() }

56+ val name = "crash-test-${tag}-${System.nanoTime()}.txt"

57+ java.io.File(dir, name).writeText(

58+ """

59+ opencode-android crash report

60+ Android: test

61+ java.lang.IllegalStateException: boom $tag

62+ at Crasher.crash(Crasher.kt:1)

63+ """.trimIndent(),

64+ )

65+ return name

66+ }

67+}

app/src/androidTest/java/soy/iko/opencode/data/repo/DraftStoreTest.ktnew file+59

@@ -0,0 +1,59 @@

1+package soy.iko.opencode.data.repo

2+

3+import androidx.test.core.app.ApplicationProvider

4+import androidx.test.ext.junit.runners.AndroidJUnit4

5+import kotlinx.coroutines.CoroutineScope

6+import kotlinx.coroutines.Dispatchers

7+import kotlinx.coroutines.SupervisorJob

8+import kotlinx.coroutines.cancel

9+import kotlinx.coroutines.runBlocking

10+import org.junit.Assert.assertEquals

11+import org.junit.Test

12+import org.junit.runner.RunWith

13+

14+@RunWith(AndroidJUnit4::class)

15+class DraftStoreTest {

16+

17+ private val context = ApplicationProvider.getApplicationContext<android.content.Context>()

18+

19+ @Test

20+ fun setGetRemoveRoundTrip() = runBlocking {

21+ val scope = CoroutineScope(SupervisorJob() + Dispatchers.Unconfined)

22+ val store = DraftStore(context, scope)

23+

24+ // Use a unique session ID so it doesn't collide with other tests.

25+ val sid = "test-${System.nanoTime()}"

26+

27+ store.set(sid, "hello world")

28+ assertEquals("hello world", store.get(sid))

29+

30+ // Overwrite

31+ store.set(sid, "updated")

32+ assertEquals("updated", store.get(sid))

33+

34+ // Blank clears the entry

35+ store.set(sid, " ")

36+ assertEquals("", store.get(sid))

37+

38+ // Explicit remove

39+ store.set(sid, "text")

40+ store.remove(sid)

41+ assertEquals("", store.get(sid))

42+

43+ scope.cancel()

44+ }

45+

46+ @Test

47+ fun getReturnsEmptyForUnknownSession() {

48+ // Create the scope in a local val so it can be cancelled — DraftStore launches a

49+ // debounced-persistence collector into the supplied scope that keeps running until

50+ // cancelled, and an uncanceled scope leaks across test invocations on device.

51+ val scope = CoroutineScope(SupervisorJob() + Dispatchers.Unconfined)

52+ try {

53+ val store = DraftStore(context, scope)

54+ assertEquals("", store.get("never-set-${System.nanoTime()}"))

55+ } finally {

56+ scope.cancel()

57+ }

58+ }

59+}

app/src/main/AndroidManifest.xml+115−6

@@ -1,26 +1,135 @@

11<?xml version="1.0" encoding="utf-8"?>

2−<manifest xmlns:android="http://schemas.android.com/apk/res/android">

2+<manifest xmlns:android="http://schemas.android.com/apk/res/android"

3+ xmlns:tools="http://schemas.android.com/tools">

34

45 <uses-permission android:name="android.permission.INTERNET" />

56 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

7+ <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />

8+ <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />

9+ <uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC" />

10+

11+ <!-- Camera is used opportunistically for attachment capture via the system camera app

12+ (ACTION_IMAGE_CAPTURE), so it's optional — devices without a camera still install. -->

13+ <uses-feature android:name="android.hardware.camera.any" android:required="false" />

614

715 <application

8− android:allowBackup="true"

9− android:icon="@android:drawable/sym_def_app_icon"

16+ android:name=".OpencodeApp"

17+ android:allowBackup="false"

18+ android:dataExtractionRules="@xml/data_extraction_rules"

19+ android:fullBackupContent="false"

20+ android:icon="@mipmap/ic_launcher"

1021 android:label="@string/app_name"

22+ android:networkSecurityConfig="@xml/network_security_config"

1123 android:supportsRtl="true"

12− android:theme="@style/Theme.OpencodeAndroid"

13− android:usesCleartextTraffic="true">

24+ android:theme="@style/Theme.OpencodeAndroid">

1425

1526 <activity

1627 android:name=".MainActivity"

1728 android:exported="true"

29+ android:launchMode="singleTop"

30+ android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout|keyboardHidden|uiMode|navigation"

31+ android:enableOnBackInvokedCallback="true"

1832 android:windowSoftInputMode="adjustResize"

19− android:theme="@style/Theme.OpencodeAndroid">

33+ tools:targetApi="33"

34+ android:theme="@style/Theme.OpencodeAndroid.Splash">

2035 <intent-filter>

2136 <action android:name="android.intent.action.MAIN" />

2237 <category android:name="android.intent.category.LAUNCHER" />

2338 </intent-filter>

39+ <intent-filter>

40+ <action android:name="android.intent.action.SEND" />

41+ <category android:name="android.intent.category.DEFAULT" />

42+ <data android:mimeType="text/plain" />

43+ </intent-filter>

44+ <!-- Receive images shared from other apps (single or multiple) to attach to a prompt. -->

45+ <intent-filter>

46+ <action android:name="android.intent.action.SEND" />

47+ <category android:name="android.intent.category.DEFAULT" />

48+ <data android:mimeType="image/*" />

49+ </intent-filter>

50+ <intent-filter>

51+ <action android:name="android.intent.action.SEND_MULTIPLE" />

52+ <category android:name="android.intent.category.DEFAULT" />

53+ <data android:mimeType="image/*" />

54+ </intent-filter>

55+ <!-- Deep link to a session: opencode://session/{sessionId} -->

56+ <intent-filter>

57+ <action android:name="android.intent.action.VIEW" />

58+ <category android:name="android.intent.category.DEFAULT" />

59+ <category android:name="android.intent.category.BROWSABLE" />

60+ <data android:scheme="opencode" android:host="session" />

61+ </intent-filter>

62+ <!-- Deep links: opencode://file/{path} and opencode://new -->

63+ <intent-filter>

64+ <action android:name="android.intent.action.VIEW" />

65+ <category android:name="android.intent.category.DEFAULT" />

66+ <category android:name="android.intent.category.BROWSABLE" />

67+ <data android:scheme="opencode" android:host="file" />

68+ </intent-filter>

69+ <intent-filter>

70+ <action android:name="android.intent.action.VIEW" />

71+ <category android:name="android.intent.category.DEFAULT" />

72+ <category android:name="android.intent.category.BROWSABLE" />

73+ <data android:scheme="opencode" android:host="new" />

74+ </intent-filter>

2475 </activity>

76+

77+ <service

78+ android:name=".notification.RunForegroundService"

79+ android:exported="false"

80+ android:foregroundServiceType="dataSync" />

81+

82+ <!-- Handles notification action buttons (permission responses, inline reply). Not

83+ exported: only the app's own PendingIntents target it. -->

84+ <receiver

85+ android:name=".notification.NotificationActionReceiver"

86+ android:exported="false" />

87+

88+ <!-- Home-screen widget listing recent sessions. -->

89+ <receiver

90+ android:name=".platform.SessionsWidgetProvider"

91+ android:exported="true">

92+ <intent-filter>

93+ <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />

94+ </intent-filter>

95+ <meta-data

96+ android:name="android.appwidget.provider"

97+ android:resource="@xml/sessions_widget_info" />

98+ </receiver>

99+

100+ <!-- Serves the widget's session list rows. Bound by the system with BIND_REMOTEVIEWS.

101+ exported="true" is required: the AppWidget host runs in the launcher/system process

102+ (a different process from the app), so it can only bindService to a service that's

103+ visible outside the app. The BIND_REMOTEVIEWS permission restricts *who* can bind to

104+ the system; exported="false" would make the service invisible to the host and the

105+ widget's RemoteViewsService adapter would never populate. -->

106+ <service

107+ android:name=".platform.SessionsWidgetService"

108+ android:permission="android.permission.BIND_REMOTEVIEWS"

109+ android:exported="true" />

110+

111+ <!-- Quick-settings tile: start a new session. Bound by the system. -->

112+ <service

113+ android:name=".platform.NewSessionTileService"

114+ android:icon="@drawable/ic_launcher_foreground"

115+ android:label="@string/tile_new_session"

116+ android:permission="android.permission.BIND_QUICK_SETTINGS_TILE"

117+ android:exported="true">

118+ <intent-filter>

119+ <action android:name="android.service.quicksettings.action.QS_TILE" />

120+ </intent-filter>

121+ </service>

122+

123+ <!-- Serves camera-capture temp files (cache/captures) to the system camera app. -->

124+ <provider

125+ android:name="androidx.core.content.FileProvider"

126+ android:authorities="${applicationId}.fileprovider"

127+ android:exported="false"

128+ android:grantUriPermissions="true">

129+ <meta-data

130+ android:name="android.support.FILE_PROVIDER_PATHS"

131+ android:resource="@xml/file_paths" />

132+ </provider>

25133 </application>

134+

26135</manifest>

app/src/main/java/soy/iko/opencode/CoreViewModel.ktdeleted−66

@@ -1,66 +0,0 @@

1−package soy.iko.opencode

2−

3−import android.app.Application

4−import android.content.Context

5−import androidx.core.content.edit

6−import androidx.lifecycle.AndroidViewModel

7−import androidx.lifecycle.viewModelScope

8−import kotlinx.coroutines.flow.distinctUntilChangedBy

9−import kotlinx.coroutines.launch

10−import soy.iko.opencode.core.Event

11−import soy.iko.opencode.core.OpencodeCore

12−

13−/**

14− * Lifecycle-scoped host for the [OpencodeCore] so a single core (and its SSE

15− * connection) survives configuration changes. It also persists the last server

16− * URL / username so reconnecting is one tap.

17− */

18−class CoreViewModel(app: Application) : AndroidViewModel(app) {

19− private val prefs = app.getSharedPreferences("opencode", Context.MODE_PRIVATE)

20−

21− val core = OpencodeCore(viewModelScope)

22−

23− init {

24− prefs.getString(KEY_URL, null)?.let { core.dispatch(Event.ServerUrlChanged(it)) }

25− prefs.getString(KEY_USER, null)?.let { core.dispatch(Event.UsernameChanged(it)) }

26− // The password is stored in plain text in SharedPreferences — a deliberate

27− // convenience trade-off for a local dev tool so reconnecting is one tap.

28− prefs.getString(KEY_PASSWORD, null)?.let { core.dispatch(Event.PasswordChanged(it)) }

29−

30− // On a fresh process after a configuration change, resume the SSE stream if

31− // the core is already connected (no-op otherwise — it guards on `connected`).

32− core.resumeStreamingIfConnected()

33−

34− // Returning users shouldn't have to tap Connect: if a URL was restored and we

35− // aren't already connected, kick off the connection attempt on launch. The core

36− // handles an empty/invalid URL, so this only fires when there's something to try.

37− core.view.value.let { restored ->

38− if (restored.serverUrl.isNotEmpty() && !restored.connected) {

39− core.dispatch(Event.Connect)

40− }

41− }

42−

43− // Persist connection details once a connection succeeds.

44− viewModelScope.launch {

45− core.view.distinctUntilChangedBy { it.connected to it.serverUrl }.collect { state ->

46− if (state.connected) {

47− prefs.edit {

48− putString(KEY_URL, state.serverUrl)

49− putString(KEY_USER, state.username)

50− putString(KEY_PASSWORD, state.password)

51− }

52− }

53− }

54− }

55− }

56−

57− override fun onCleared() {

58− core.shutdown()

59− }

60−

61− private companion object {

62− const val KEY_URL = "serverUrl"

63− const val KEY_USER = "username"

64− const val KEY_PASSWORD = "password"

65− }

66−}

app/src/main/java/soy/iko/opencode/MainActivity.kt+473−15

@@ -1,31 +1,489 @@

11package soy.iko.opencode

22

3+import android.Manifest

4+import android.content.Intent

5+import android.content.pm.PackageManager

6+import android.net.Uri

7+import android.os.Build

38import android.os.Bundle

4−import androidx.activity.ComponentActivity

5−import androidx.activity.SystemBarStyle

9+import android.view.WindowManager

10+import androidx.core.content.IntentCompat

11+import soy.iko.opencode.data.network.NetworkConfig

12+import soy.iko.opencode.notification.NotificationActionReceiver

613import androidx.activity.compose.setContent

714import androidx.activity.enableEdgeToEdge

15+import androidx.activity.result.contract.ActivityResultContracts

16+import androidx.compose.foundation.isSystemInDarkTheme

17+import androidx.compose.material3.AlertDialog

18+import androidx.compose.material3.Text

19+import androidx.compose.material3.TextButton

20+import androidx.compose.runtime.LaunchedEffect

821import androidx.compose.runtime.getValue

22+import androidx.compose.runtime.mutableStateOf

23+import androidx.compose.runtime.remember

24+import androidx.compose.runtime.setValue

25+import androidx.compose.ui.res.stringResource

26+import kotlinx.coroutines.Dispatchers

27+import kotlinx.coroutines.flow.combine

28+import kotlinx.coroutines.launch

29+import kotlinx.coroutines.withContext

30+import androidx.core.content.ContextCompat

31+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen

32+import androidx.fragment.app.FragmentActivity

933import androidx.lifecycle.compose.collectAsStateWithLifecycle

10−import androidx.lifecycle.viewmodel.compose.viewModel

11−import soy.iko.opencode.ui.OpencodeApp

34+import androidx.lifecycle.lifecycleScope

35+import soy.iko.opencode.data.repo.SettingsStore

36+import soy.iko.opencode.data.repo.ThemeMode

37+import soy.iko.opencode.ui.AppLockGate

38+import soy.iko.opencode.ui.OpencodeApp as OpencodeAppUi

1239import soy.iko.opencode.ui.theme.OpencodeTheme

1340

14−class MainActivity : ComponentActivity() {

41+// FragmentActivity (not ComponentActivity) so androidx.biometric BiometricPrompt can attach

42+// for the app-lock gate; FragmentActivity extends ComponentActivity, so Compose/edge-to-edge

43+// /activity-result APIs are unaffected.

44+class MainActivity : FragmentActivity() {

45+

46+ private val requestNotificationPermission = registerForActivityResult(

47+ ActivityResultContracts.RequestPermission(),

48+ ) { /* Result is best-effort; notifications are silently skipped if denied. */ }

49+

50+ private var shareIntentHandled = false

51+ private var openSessionHandled = false

52+ private var newSessionHandled = false

53+ private var openFileHandled = false

54+ // Set when a deep link was present but failed validation (malformed id/path). Surfaced

55+ // as a toast from onResume so the user knows the link was rejected, not silently ignored.

56+ // On a warm start (onNewIntent while already resumed) the toast is shown immediately from

57+ // handleIntent, since onResume is NOT re-called on an already-resumed activity — without

58+ // that the toast would stay pending until the next pause/resume cycle (e.g. user

59+ // backgrounds and returns), making the rejected link look silently ignored.

60+ private var showInvalidLinkToast = false

61+ // True between onResume and onPause. Used by handleIntent to decide whether to fire the

62+ // invalid-link toast immediately (warm start) or defer it to onResume (cold start, where

63+ // a toast from onCreate could flash before the first frame is drawn).

64+ private var isResumed = false

65+ // Cold-start prompts (crash report, notification rationale) rendered as Compose M3

66+ // dialogs. Hoisted as Activity-level mutableState so the non-composable trigger logic

67+ // (onCreate/onResume) can flip them and the Compose tree (inside OpencodeTheme) reads

68+ // them and renders an M3 AlertDialog that picks up the app palette. The triggers

69+ // themselves are idempotent per instance (crashes are acknowledged on first fire;

70+ // notificationPermissionRequested is restored from saved state), so a plain

71+ // mutableStateOf (not saveable) preserves the original dismissal semantics across

72+ // config-change recreation: the prompt simply doesn't re-fire after a rotate.

73+ private var showCrashPrompt by mutableStateOf(false)

74+ private var showNotifRationale by mutableStateOf(false)

75+ // Track whether the notification-permission prompt has been shown for this Activity

76+ // instance. onCreate only requests when savedInstanceState == null (a fresh process),

77+ // but an Activity recreated by a config change NOT listed in the manifest's configChanges

78+ // (e.g. a locale change) has a non-null savedInstanceState and would otherwise skip the

79+ // prompt forever. onResume re-requests once per instance when still ungranted so the user

80+ // is never silently left without notifications after such a recreation.

81+ private var notificationPermissionRequested = false

82+

1583 override fun onCreate(savedInstanceState: Bundle?) {

16− enableEdgeToEdge(

17− statusBarStyle = SystemBarStyle.auto(

18− lightScrim = 0xFF0F1115.toInt(),

19− darkScrim = 0xFF0F1115.toInt(),

20− ),

21− )

84+ val splash = installSplashScreen()

2285 super.onCreate(savedInstanceState)

86+ enableEdgeToEdge()

87+ savedInstanceState?.let {

88+ shareIntentHandled = it.getBoolean(KEY_SHARE_HANDLED, false)

89+ openSessionHandled = it.getBoolean(KEY_OPEN_SESSION_HANDLED, false)

90+ newSessionHandled = it.getBoolean(KEY_NEW_SESSION_HANDLED, false)

91+ openFileHandled = it.getBoolean(KEY_OPEN_FILE_HANDLED, false)

92+ }

93+ val container = (application as OpencodeApp).container

94+ handleIntent(intent)

95+ if (savedInstanceState == null) {

96+ maybeRequestNotificationPermission()

97+ } else {

98+ // Restored instance: the permission may have been requested pre-recreation, but

99+ // we can't know the result from here. onResume will re-check and request if still

100+ // ungranted (once per Activity instance).

101+ notificationPermissionRequested = savedInstanceState.getBoolean(KEY_NOTIF_PERM_REQUESTED, false)

102+ }

103+ // Hold the splash until the persisted theme and app-lock settings load, so we never

104+ // paint a frame with the defaults (dynamicColor=false / SYSTEM, app lock off) that then

105+ // snap to the user's real choice — including a brief unlocked, un-FLAG_SECURE'd frame

106+ // before app lock resolves. Mirrors the SettingsScreen's null-gate.

107+ var settingsLoaded = false

108+ splash.setKeepOnScreenCondition { !settingsLoaded }

109+ // Custom splash exit: a quick fade-out instead of the system default's slide, so the

110+ // hand-off to Compose reads as a branded dissolve. The listener must call

111+ // splashScreenViewProvider.remove() to release the splash view; otherwise the system

112+ // keeps it on screen for its default duration. Reduced-motion is respected via the

113+ // animator's duration scale (the system zeroes it under reduced motion).

114+ splash.setOnExitAnimationListener { splashScreenViewProvider ->

115+ val view = splashScreenViewProvider.view

116+ val fade = android.view.animation.AlphaAnimation(1f, 0f).apply {

117+ duration = 180

118+ fillAfter = true

119+ }

120+ fade.setAnimationListener(object : android.view.animation.Animation.AnimationListener {

121+ override fun onAnimationStart(animation: android.view.animation.Animation?) {}

122+ override fun onAnimationEnd(animation: android.view.animation.Animation?) {

123+ splashScreenViewProvider.remove()

124+ }

125+ override fun onAnimationRepeat(animation: android.view.animation.Animation?) {}

126+ })

127+ view.startAnimation(fade)

128+ }

23129 setContent {

24− OpencodeTheme {

25− val vm: CoreViewModel = viewModel()

26− val state by vm.core.view.collectAsStateWithLifecycle()

27− OpencodeApp(state = state, dispatch = vm.core::dispatch)

130+ val theme by remember(container) {

131+ container.settingsStore.themeMode

132+ .combine(container.settingsStore.dynamicColor, ::Pair)

133+ }.collectAsStateWithLifecycle(initialValue = null)

134+ val appLock by container.settingsStore.appLock.collectAsStateWithLifecycle(initialValue = null)

135+ val appLockReLockSeconds by container.settingsStore.appLockReLockSeconds

136+ .collectAsStateWithLifecycle(initialValue = SettingsStore.DEFAULT_APP_LOCK_RELOCK_SECONDS)

137+ LaunchedEffect(theme, appLock) { if (theme != null && appLock != null) settingsLoaded = true }

138+ // Hide the app's content from screenshots / the recents thumbnail while app lock is

139+ // enabled — and while its value is still unknown (null) at cold start, so a protected

140+ // launch can't flash into the recents thumbnail before the setting resolves.

141+ LaunchedEffect(appLock) {

142+ if (appLock != false) window.addFlags(WindowManager.LayoutParams.FLAG_SECURE)

143+ else window.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)

144+ }

145+ val themePair = theme

146+ val locked = appLock

147+ if (themePair != null && locked != null) {

148+ val (themeMode, dynamicColor) = themePair

149+ val amoled = themeMode == ThemeMode.AMOLED

150+ val dark = when (themeMode) {

151+ ThemeMode.SYSTEM -> isSystemInDarkTheme()

152+ ThemeMode.LIGHT -> false

153+ ThemeMode.DARK -> true

154+ ThemeMode.AMOLED -> true

155+ }

156+ OpencodeTheme(darkTheme = dark, dynamicColor = dynamicColor, amoled = amoled) {

157+ AppLockGate(enabled = locked, reLockDelaySeconds = appLockReLockSeconds) {

158+ OpencodeAppUi(container = container)

159+ }

160+ // First-launch prompts as Compose M3 dialogs (siblings of AppLockGate so they

161+ // still surface over the lock screen, matching the prior framework-dialog

162+ // behavior) and inside OpencodeTheme so they use the app palette.

163+ if (showCrashPrompt) {

164+ AlertDialog(

165+ onDismissRequest = { showCrashPrompt = false },

166+ title = { Text(stringResource(R.string.crash_last_run_title)) },

167+ text = { Text(stringResource(R.string.crash_last_run_text)) },

168+ confirmButton = {

169+ TextButton(onClick = {

170+ showCrashPrompt = false

171+ container.requestDiagnostics()

172+ }) { Text(stringResource(R.string.crash_last_run_view)) }

173+ },

174+ dismissButton = {

175+ TextButton(onClick = { showCrashPrompt = false }) {

176+ Text(stringResource(R.string.crash_last_run_dismiss))

177+ }

178+ },

179+ )

180+ }

181+ if (showNotifRationale) {

182+ AlertDialog(

183+ // Mirrors the original setCancelable(false): not dismissible by

184+ // back/outside tap, only by the buttons below.

185+ onDismissRequest = { },

186+ title = { Text(stringResource(R.string.notif_rationale_title)) },

187+ text = { Text(stringResource(R.string.notif_rationale_text)) },

188+ confirmButton = {

189+ TextButton(onClick = {

190+ showNotifRationale = false

191+ runCatching { requestNotificationPermission.launch(Manifest.permission.POST_NOTIFICATIONS) }

192+ }) { Text(stringResource(R.string.notif_rationale_allow)) }

193+ },

194+ dismissButton = {

195+ TextButton(onClick = { showNotifRationale = false }) {

196+ Text(stringResource(R.string.notif_rationale_skip))

197+ }

198+ },

199+ )

200+ }

201+ }

202+ }

203+ }

204+ // Surface a "crashed last time" prompt if a crash report from a previous run

205+ // hasn't been acknowledged. Acknowledges immediately so it doesn't re-fire on

206+ // every rotation/resume; the user can always find reports in Settings → Diagnostics.

207+ maybeShowCrashPrompt()

208+ }

209+

210+ private fun maybeShowCrashPrompt() {

211+ // The check does a directory scan + per-file stat (listFiles + lastModified), which

212+ // is synchronous filesystem I/O. Run it off the main thread so the cold-start

213+ // critical path (before setContent's first frame) isn't blocked by up to ~20 stat

214+ // syscalls on slow storage. The prompt state flips on once the result arrives; the

215+ // splash screen has already been dismissed by then, so the dialog appears a frame

216+ // or two later than it would have synchronously — invisible to the user.

217+ val crashLogger = soy.iko.opencode.data.repo.CrashLogger.get(this)

218+ lifecycleScope.launch {

219+ val hasUnacknowledged = withContext(Dispatchers.IO) {

220+ crashLogger.hasUnacknowledgedCrash()

221+ }

222+ if (hasUnacknowledged) {

223+ crashLogger.acknowledgeCrashes()

224+ showCrashPrompt = true

28225 }

29226 }

30227 }

228+

229+ override fun onNewIntent(intent: Intent) {

230+ super.onNewIntent(intent)

231+ setIntent(intent)

232+ shareIntentHandled = false

233+ openSessionHandled = false

234+ newSessionHandled = false

235+ openFileHandled = false

236+ handleIntent(intent)

237+ }

238+

239+ // Track real foreground state so background notifications (permission requests,

240+ // completions, errors) still fire for a session the user "has open" but has walked

241+ // away from — the chat screen isn't disposed when the phone is locked, so

242+ // container.currentSession stays set and can't be used as a foreground signal.

243+ override fun onStart() {

244+ super.onStart()

245+ (application as OpencodeApp).container.setForeground(true)

246+ }

247+

248+ override fun onStop() {

249+ super.onStop()

250+ (application as OpencodeApp).container.setForeground(false)

251+ }

252+

253+ override fun onResume() {

254+ super.onResume()

255+ isResumed = true

256+ // Re-check on resume: an Activity recreated by a config change not in configChanges

257+ // (e.g. locale) has savedInstanceState != null, so onCreate skipped the request. This

258+ // ensures the user is prompted once per Activity instance when still ungranted rather

259+ // than silently losing all notifications.

260+ maybeRequestNotificationPermission()

261+ // Surface a rejected deep link once, so a malformed opencode:// link doesn't appear

262+ // to be silently ignored. Cleared after firing so a rotation doesn't re-toast. This

263+ // covers the cold-start path (handleIntent ran from onCreate, before the activity was

264+ // resumed, so it deferred the toast here). Warm-start rejections fire immediately from

265+ // handleIntent and never set this flag.

266+ if (showInvalidLinkToast) {

267+ showInvalidLinkToast = false

268+ showInvalidLinkToastNow()

269+ }

270+ }

271+

272+ override fun onPause() {

273+ super.onPause()

274+ isResumed = false

275+ }

276+

277+ /** Fire the invalid-deep-link toast. Extracted so the cold-start (onResume) and warm-start

278+ * (handleIntent) paths share a single implementation. */

279+ private fun showInvalidLinkToastNow() {

280+ android.widget.Toast.makeText(this, R.string.deep_link_invalid, android.widget.Toast.LENGTH_SHORT).show()

281+ }

282+

283+ /** Capture text shared from another app so it can be prefilled into a session draft,

284+ * and session ids from notification taps / deep links so we can open them. */

285+ private fun handleIntent(intent: Intent?) {

286+ val container = (application as OpencodeApp).container

287+ val action = intent?.action

288+ // "New session" from a launcher shortcut or the quick-settings tile. Guarded so a

289+ // process-death restore (which re-delivers the intent) doesn't spawn a second session.

290+ if (action == ACTION_NEW_SESSION && !newSessionHandled) {

291+ container.requestNewSession()

292+ newSessionHandled = true

293+ }

294+ if ((action == Intent.ACTION_SEND || action == Intent.ACTION_SEND_MULTIPLE) && !shareIntentHandled) {

295+ val type = intent.type.orEmpty()

296+ if (action == Intent.ACTION_SEND && type.startsWith("image/")) {

297+ // A single shared image → stage as an attachment in the next opened session.

298+ val uri = IntentCompat.getParcelableExtra(intent, Intent.EXTRA_STREAM, Uri::class.java)

299+ if (uri != null) {

300+ container.setPendingSharedMedia(listOf(uri.toString()))

301+ shareIntentHandled = true

302+ }

303+ } else if (action == Intent.ACTION_SEND_MULTIPLE && type.startsWith("image/")) {

304+ val uris = IntentCompat.getParcelableArrayListExtra(intent, Intent.EXTRA_STREAM, Uri::class.java)

305+ ?.take(NetworkConfig.maxAttachments)

306+ .orEmpty()

307+ if (uris.isNotEmpty()) {

308+ container.setPendingSharedMedia(uris.map { it.toString() })

309+ shareIntentHandled = true

310+ }

311+ } else if (action == Intent.ACTION_SEND) {

312+ // A non-image file (e.g. a PDF or text file shared from another app): stage it

313+ // as an attachment too, so the user can send it to the agent. The attachment

314+ // pipeline handles non-image mimes with a generic file icon. Falls back to

315+ // EXTRA_TEXT when no stream is present (a plain text share).

316+ val uri = IntentCompat.getParcelableExtra(intent, Intent.EXTRA_STREAM, Uri::class.java)

317+ if (uri != null) {

318+ container.setPendingSharedMedia(listOf(uri.toString()))

319+ shareIntentHandled = true

320+ } else {

321+ val text = intent.getStringExtra(Intent.EXTRA_TEXT)

322+ ?.takeIf { it.isNotBlank() }

323+ ?.take(10_000) // cap to prevent unbounded memory usage from malicious shares

324+ if (text != null) {

325+ container.setPendingShare(text)

326+ shareIntentHandled = true

327+ }

328+ }

329+ } else {

330+ val text = intent.getStringExtra(Intent.EXTRA_TEXT)

331+ ?.takeIf { it.isNotBlank() }

332+ ?.take(10_000) // cap to prevent unbounded memory usage from malicious shares

333+ if (text != null) {

334+ container.setPendingShare(text)

335+ shareIntentHandled = true

336+ }

337+ }

338+ }

339+ // Deep links under the opencode:// scheme. The manifest exposes several hosts:

340+ // session/{id} → open (and switch to) that conversation

341+ // file/{path} → open the file viewer at that workspace path

342+ // new → start a fresh session

343+ // The file path is percent-encoded by the link source; decode it here and validate the

344+ // segment to keep path-traversal out of the REST path (mirroring the session guard).

345+ val data = intent?.takeIf { it.action == Intent.ACTION_VIEW }?.data

346+ when (data?.host) {

347+ "session" -> {

348+ val seg = data.lastPathSegment

349+ if (!openSessionHandled) {

350+ seg?.takeIf { it.isNotBlank() && it.matches(VALID_SESSION_ID) }?.let {

351+ val profileId = intent.getStringExtra(NotificationActionReceiver.EXTRA_PROFILE_ID)

352+ ?.takeIf { it.isNotBlank() }

353+ container.requestOpenSession(it, profileId)

354+ openSessionHandled = true

355+ } ?: run {

356+ // The link carried a session host but no valid id (or a blank/traversal

357+ // attempt). Surface a toast so the user knows the link was rejected,

358+ // rather than silently no-op'ing (which reads as "the app did nothing").

359+ // On a warm start (already resumed) fire immediately; on a cold start

360+ // defer to onResume so the toast doesn't race the first frame.

361+ if (!seg.isNullOrBlank()) {

362+ if (isResumed) showInvalidLinkToastNow() else showInvalidLinkToast = true

363+ }

364+ // Mark the link handled even on rejection, so a process-death-and-restore

365+ // (which re-delivers the same intent) doesn't re-fire the toast on every

366+ // restore — the rejection is final, not a transient state to retry.

367+ openSessionHandled = true

368+ }

369+ }

370+ }

371+ "file" -> {

372+ // Reconstruct the path from the URI. `file` is the URI *host* (authority), so

373+ // data.path is the path AFTER the authority — e.g. `opencode://file/foo/bar.txt`

374+ // yields data.path = "/foo/bar.txt", which begins with a leading slash that the

375+ // server's file endpoints don't expect (the in-app browser uses server-returned

376+ // FileNode.path values with no leading slash, e.g. "foo/bar.txt"). Strip the

377+ // single leading slash, then percent-decode and validate against traversal/control

378+ // characters. (Using pathSegments would also work but over-decodes `+` and other

379+ // characters that aren't percent-encoded in real workspace paths.)

380+ val rawPath = data.path?.let { p ->

381+ val stripped = if (p.startsWith("/")) p.substring(1) else p

382+ android.net.Uri.decode(stripped)

383+ }

384+ if (!openFileHandled) {

385+ rawPath?.takeIf { isValidFilePath(it) }

386+ ?.let { container.requestOpenFile(it); openFileHandled = true } ?: run {

387+ if (!rawPath.isNullOrBlank()) {

388+ // Same warm-vs-cold logic as the session branch above.

389+ if (isResumed) showInvalidLinkToastNow() else showInvalidLinkToast = true

390+ }

391+ // Mark handled on rejection too, mirroring the session branch —

392+ // otherwise a process-death restore re-fires the invalid-link toast.

393+ openFileHandled = true

394+ }

395+ }

396+ }

397+ "new" -> {

398+ if (!newSessionHandled) {

399+ container.requestNewSession()

400+ newSessionHandled = true

401+ }

402+ }

403+ }

404+ // Fall back to the EXTRA_SESSION_ID extra (notifications / widget) when no deep link

405+ // was present at all. A deep link that matched a host but failed validation (e.g. a

406+ // malformed session id) does NOT fall through to the extra: the intent's primary

407+ // routing signal was the URI, and the extra may carry a different (valid) id that

408+ // would silently open the wrong session. Only when data?.host is null (a pure widget

409+ // / notification intent with no URI) does the extra carry the routing intent.

410+ if (data?.host == null && !openSessionHandled) {

411+ intent?.getStringExtra(EXTRA_SESSION_ID)?.takeIf { it.isNotBlank() && it.matches(VALID_SESSION_ID) }?.let {

412+ val profileId = intent.getStringExtra(NotificationActionReceiver.EXTRA_PROFILE_ID)

413+ ?.takeIf { it.isNotBlank() }

414+ container.requestOpenSession(it, profileId)

415+ openSessionHandled = true

416+ }

417+ }

418+ }

419+

420+ companion object {

421+ /** Intent extra carrying a session id to open (notifications / deep links / widget). */

422+ const val EXTRA_SESSION_ID = "soy.iko.opencode.extra.SESSION_ID"

423+

424+ /** Action for the "New session" launcher shortcut and quick-settings tile. */

425+ const val ACTION_NEW_SESSION = "soy.iko.opencode.action.NEW_SESSION"

426+

427+ /** Session ids are alphanumeric with dashes/underscores. Reject path traversal. */

428+ private val VALID_SESSION_ID = Regex("[A-Za-z0-9_-]+")

429+

430+ /** A file path must not carry traversal segments or control characters. Looser than a

431+ * positive allowlist: real workspace paths commonly contain `~`, `:`, `+`, `=`, `,`,

432+ * parentheses, and non-ASCII unicode, all of which a tight `[A-Za-z0-9_\\-./ ]+`

433+ * regex would reject. The server validates the path against the workspace root, so

434+ * here we only reject what's unambiguously hostile (traversal) or non-printable. */

435+ private fun isValidFilePath(path: String): Boolean {

436+ if (path.isBlank()) return false

437+ if (path.contains("..")) return false

438+ if (path.any { it.isISOControl() }) return false

439+ return true

440+ }

441+

442+ private const val KEY_SHARE_HANDLED = "shareIntentHandled"

443+ private const val KEY_OPEN_SESSION_HANDLED = "openSessionHandled"

444+ private const val KEY_NEW_SESSION_HANDLED = "newSessionHandled"

445+ private const val KEY_OPEN_FILE_HANDLED = "openFileHandled"

446+ private const val KEY_NOTIF_PERM_REQUESTED = "notificationPermissionRequested"

447+ }

448+

449+ override fun onSaveInstanceState(outState: Bundle) {

450+ super.onSaveInstanceState(outState)

451+ val container = (application as OpencodeApp).container

452+ // Persist each intent-handled flag as "consumed", not merely "dispatched". The pending

453+ // signals live only in the in-memory AppContainer, which is recreated EMPTY on process

454+ // death. Persisting a plain "dispatched = true" would, after a kill *before* the UI

455+ // consumed the signal, restore the flag as true so the fresh container never receives it —

456+ // the deep-linked / new / shared session would silently never open. So AND each flag with

457+ // "the container no longer holds the signal": still-pending at save time → persist false so

458+ // the re-delivered intent re-dispatches it into the new container on restore; already

459+ // consumed → persist true so we don't re-open it unexpectedly on every later restore.

460+ val openConsumed = container.pendingOpenSession.value == null

461+ val newConsumed = container.pendingNewSession.value == 0

462+ val shareConsumed = container.pendingShare.value == null && container.pendingSharedMedia.value.isEmpty()

463+ val fileConsumed = container.pendingOpenFile.value == null

464+ outState.putBoolean(KEY_SHARE_HANDLED, shareIntentHandled && shareConsumed)

465+ outState.putBoolean(KEY_OPEN_SESSION_HANDLED, openSessionHandled && openConsumed)

466+ outState.putBoolean(KEY_NEW_SESSION_HANDLED, newSessionHandled && newConsumed)

467+ outState.putBoolean(KEY_OPEN_FILE_HANDLED, openFileHandled && fileConsumed)

468+ outState.putBoolean(KEY_NOTIF_PERM_REQUESTED, notificationPermissionRequested)

469+ }

470+

471+ /** Ask for POST_NOTIFICATIONS on Android 13+ so run/completion notifications show.

472+ * Idempotent per Activity instance via [notificationPermissionRequested].

473+ * Shows a rationale dialog first (explaining what the user gains) before the system

474+ * permission prompt, so a user who denies understands what they're missing. */

475+ private fun maybeRequestNotificationPermission() {

476+ if (notificationPermissionRequested) return

477+ if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) return

478+ val granted = ContextCompat.checkSelfPermission(this, Manifest.permission.POST_NOTIFICATIONS) ==

479+ PackageManager.PERMISSION_GRANTED

480+ if (!granted) {

481+ notificationPermissionRequested = true

482+ showNotificationRationaleDialog()

483+ }

484+ }

485+

486+ private fun showNotificationRationaleDialog() {

487+ showNotifRationale = true

488+ }

31489}

app/src/main/java/soy/iko/opencode/OpencodeApp.ktnew file+130

@@ -0,0 +1,130 @@

1+package soy.iko.opencode

2+

3+import android.app.Application

4+import android.content.Context

5+import coil3.ImageLoader

6+import coil3.SingletonImageLoader

7+import coil3.disk.DiskCache

8+import coil3.memory.MemoryCache

9+import coil3.network.okhttp.OkHttpNetworkFetcherFactory

10+import okhttp3.Call

11+import okhttp3.CertificatePinner

12+import okhttp3.HttpUrl.Companion.toHttpUrlOrNull

13+import okhttp3.OkHttpClient

14+import okhttp3.Request

15+import okio.Path.Companion.toOkioPath

16+import soy.iko.opencode.data.model.ServerProfile

17+import soy.iko.opencode.data.network.CertPinUtil

18+import soy.iko.opencode.data.repo.CrashLogger

19+import soy.iko.opencode.di.AppContainer

20+import java.util.concurrent.atomic.AtomicBoolean

21+

22+class OpencodeApp : Application(), SingletonImageLoader.Factory {

23+ lateinit var container: AppContainer

24+ private set

25+

26+ private val shutdownCalled = AtomicBoolean(false)

27+

28+ override fun onCreate() {

29+ super.onCreate()

30+ CrashLogger.get(this).install()

31+ container = AppContainer(this)

32+ // onTerminate() is only called in emulated process environments, not on real

33+ // devices. Register a JVM shutdown hook so cleanup (network callback unregister,

34+ // scope cancellation, connection close) runs when the process is actually killed.

35+ Runtime.getRuntime().addShutdownHook(Thread {

36+ shutdown()

37+ })

38+ }

39+

40+ // Process-wide Coil singleton. The defaults are sane; the explicit factory adds a

41+ // disk cache so scrolling back to an image-bearing message doesn't re-fetch it over

42+ // the (auth-protected) network every time. Data-URI (base64) images skip the disk

43+ // cache automatically; only resolved HTTP/S URLs are cached, keyed by URL.

44+ //

45+ // Route fetches through a Call.Factory that applies the SAME per-profile certificate

46+ // pinning as the REST/SSE client (see HttpClientFactory). Server-hosted images carry the

47+ // server's HTTP Basic auth header (see RemoteImage), so without this they would travel over

48+ // an UNPINNED TLS connection, silently defeating the pin the user opted into for that host.

49+ override fun newImageLoader(context: Context): ImageLoader = ImageLoader.Builder(context)

50+ .memoryCache {

51+ MemoryCache.Builder()

52+ .maxSizePercent(context, 0.25)

53+ .build()

54+ }

55+ .diskCache {

56+ DiskCache.Builder()

57+ .directory(cacheDir.resolve("image_cache").toOkioPath())

58+ .maxSizeBytes(50L * 1024 * 1024)

59+ .build()

60+ }

61+ .components {

62+ // Route fetches through a Call.Factory that applies the SAME per-profile certificate

63+ // pinning as the REST/SSE client (see HttpClientFactory). Server-hosted images carry

64+ // the server's HTTP Basic auth header (see RemoteImage), so without this they would

65+ // travel over an UNPINNED TLS connection, silently defeating the pin the user opted

66+ // into for that host.

67+ add(OkHttpNetworkFetcherFactory(callFactory = { PinnedImageCallFactory(container) }))

68+ }

69+ .build()

70+

71+ override fun onTerminate() {

72+ super.onTerminate()

73+ shutdown()

74+ }

75+

76+ private fun shutdown() {

77+ // Guard against double shutdown — onTerminate and the shutdown hook can both

78+ // fire in emulated environments.

79+ if (!shutdownCalled.compareAndSet(false, true)) return

80+ container.shutdown()

81+ }

82+}

83+

84+/**

85+ * A Coil [Call.Factory] that pins image loads exactly like [HttpClientFactory] pins the

86+ * REST/SSE channel. The [ImageLoader] is a process singleton built once, but the active

87+ * [ServerProfile] — and therefore its pins — changes when the user switches servers, so the

88+ * certificate pinner is resolved *per request* from [AppContainer.activeConnection] rather than

89+ * baked in at build time. This fails closed: a profile that configures pins always gets a pinned

90+ * connection for its images (an unparseable pinned host throws, matching HttpClientFactory), so

91+ * image loads for a pinned host are never silently downgraded to an unpinned channel — and a

92+ * later server switch is picked up immediately instead of retaining the first profile's pins.

93+ */

94+private class PinnedImageCallFactory(private val container: AppContainer) : Call.Factory {

95+ // A single shared base client; each derived pinned client reuses this one's connection pool

96+ // and dispatcher via newBuilder(), so per-profile pinning doesn't spin up parallel resources.

97+ private val base = OkHttpClient()

98+

99+ // Cache the last derived client keyed by (host, pins) so we don't rebuild it on every request;

100+ // a server switch changes the signature and triggers a rebuild. Guarded because Coil invokes

101+ // newCall from arbitrary background threads, possibly concurrently.

102+ private val lock = Any()

103+ private var cachedSignature: String? = null

104+ private var cachedClient: OkHttpClient = base

105+

106+ override fun newCall(request: Request): Call =

107+ clientFor(container.activeConnection.value?.profile).newCall(request)

108+

109+ private fun clientFor(profile: ServerProfile?): OkHttpClient {

110+ val pins = CertPinUtil.parseCertPins(profile?.certPin)

111+ if (pins.isEmpty()) return base

112+ // effectiveBaseUrl upgrades http->https when pinning is on, so the pinned host matches the

113+ // https origin RemoteImage resolves image URLs against. Fail closed on an unparseable host

114+ // (never fall back to an unpinned client), mirroring HttpClientFactory.create().

115+ val effectiveUrl = CertPinUtil.effectiveBaseUrl(profile!!)

116+ val host = effectiveUrl.toHttpUrlOrNull()?.host

117+ ?: throw IllegalStateException(

118+ "Certificate pinning is configured but the server host could not be parsed from $effectiveUrl",

119+ )

120+ val signature = "$host\n${pins.sorted().joinToString(" ")}"

121+ synchronized(lock) {

122+ if (signature != cachedSignature) {

123+ val pinner = CertificatePinner.Builder().apply { pins.forEach { add(host, it) } }.build()

124+ cachedClient = base.newBuilder().certificatePinner(pinner).build()

125+ cachedSignature = signature

126+ }

127+ return cachedClient

128+ }

129+ }

130+}

app/src/main/java/soy/iko/opencode/core/HttpClient.ktdeleted−75

@@ -1,75 +0,0 @@

1−package soy.iko.opencode.core

2−

3−import kotlinx.coroutines.Dispatchers

4−import kotlinx.coroutines.suspendCancellableCoroutine

5−import kotlinx.coroutines.withContext

6−import okhttp3.Call

7−import okhttp3.Callback

8−import okhttp3.MediaType.Companion.toMediaType

9−import okhttp3.OkHttpClient

10−import okhttp3.Request

11−import okhttp3.RequestBody.Companion.toRequestBody

12−import okhttp3.Response

13−import java.io.IOException

14−import java.util.concurrent.TimeUnit

15−import kotlin.coroutines.resume

16−import kotlin.coroutines.resumeWithException

17−

18−/** A completed HTTP response (any status code — non-2xx is not an error here). */

19−data class HttpResp(val code: Int, val body: String)

20−

21−/**

22− * Thin OkHttp wrapper for the opencode REST calls. Transport failures surface as

23− * [Result.failure]; every actual HTTP response (including 4xx/5xx) is a success

24− * carrying its status code, matching the Rust core's `HttpResult` handling.

25− */

26−class HttpClient(

27− val okhttp: OkHttpClient = OkHttpClient.Builder()

28− .connectTimeout(15, TimeUnit.SECONDS)

29− .readTimeout(30, TimeUnit.SECONDS)

30− .build(),

31−) {

32− private val jsonMedia = "application/json".toMediaType()

33−

34− suspend fun get(url: String, auth: String?): Result<HttpResp> =

35− exec(url, auth) { get() }

36−

37− suspend fun postJson(url: String, body: String, auth: String?): Result<HttpResp> =

38− exec(url, auth) { post(body.toRequestBody(jsonMedia)) }

39−

40− suspend fun delete(url: String, auth: String?): Result<HttpResp> =

41− exec(url, auth) { delete() }

42−

43− // Build and run the request off the main thread. Building it — parsing [url]

44− // in particular — can throw (e.g. a URL with no scheme), so that happens

45− // inside [runCatching] too: a bad URL then surfaces as [Result.failure]

46− // instead of crashing the caller's coroutine.

47− private suspend fun exec(

48− url: String,

49− auth: String?,

50− method: Request.Builder.() -> Request.Builder,

51− ): Result<HttpResp> = withContext(Dispatchers.IO) {

52− runCatching {

53− val builder = Request.Builder().url(url).method()

54− builder.header("User-Agent", "opencode-android/1.0")

55− if (auth != null) builder.header("Authorization", auth)

56− await(okhttp.newCall(builder.build()))

57− }

58− }

59−

60− private suspend fun await(call: Call): HttpResp = suspendCancellableCoroutine { cont ->

61− cont.invokeOnCancellation { runCatching { call.cancel() } }

62− call.enqueue(object : Callback {

63− override fun onFailure(call: Call, e: IOException) {

64− if (cont.isActive) cont.resumeWithException(e)

65− }

66−

67− override fun onResponse(call: Call, response: Response) {

68− response.use {

69− val body = runCatching { it.body?.string() }.getOrNull().orEmpty()

70− if (cont.isActive) cont.resume(HttpResp(it.code, body))

71− }

72− }

73− })

74− }

75−}

app/src/main/java/soy/iko/opencode/core/OpencodeCore.ktdeleted−668

@@ -1,668 +0,0 @@

1−package soy.iko.opencode.core

2−

3−import kotlinx.coroutines.CoroutineScope

4−import kotlinx.coroutines.Job

5−import kotlinx.coroutines.delay

6−import kotlinx.coroutines.flow.MutableStateFlow

7−import kotlinx.coroutines.flow.StateFlow

8−import kotlinx.coroutines.flow.asStateFlow

9−import kotlinx.coroutines.launch

10−import java.util.Base64

11−

12−/**

13− * The application core: a Kotlin port of the Rust Crux core (`shared/`).

14− *

15− * It owns all state, turns [Event]s into state changes + effects, and exposes an

16− * observable [view]. Effects are executed here in the shell: REST calls through

17− * [HttpClient] and the long-lived `/event` stream through [SseClient]. Every

18− * server-sent event is fed back in and applied incrementally, so assistant

19− * replies stream in token-by-token.

20− *

21− * All state mutation happens on [scope]'s (main) dispatcher; only the blocking

22− * network I/O hops to a background thread inside the clients.

23− */

24−class OpencodeCore(

25− private val scope: CoroutineScope,

26− private val http: HttpClient = HttpClient(),

27−) {

28− // ── Model ────────────────────────────────────────────────────────────────

29− private var serverUrl = ""

30− private var username = ""

31− private var password = ""

32− private var authRequired = false

33− private var connected = false

34− private var loading = false

35− private var error: String? = null

36− private var screen = Screen.Connect

37− private val sessions = mutableListOf<SessionView>()

38− private var currentSessionId: String? = null

39− private var currentSessionTitle = ""

40− private val messages = mutableListOf<MsgState>()

41− private var draft = ""

42− private var generating = false

43− private var sseConnected = true

44− private var localSeq = 0L

45−

46− private val _view = MutableStateFlow(snapshot())

47− val view: StateFlow<UiState> = _view.asStateFlow()

48−

49− private var sse: SseClient? = null

50− private var sseClosedIntentionally = false

51− private var reconnectAttempts = 0

52− private var reconnectJob: Job? = null

53−

54− // Guards against overlapping session refreshes: rapid taps launch multiple

55− // loadSessions coroutines and the slowest-to-return would otherwise win.

56− private var loadSessionsJob: Job? = null

57− // Tracks the in-flight createSession coroutine so navigating away can cancel it

58− // before it dispatches SelectSession into a screen the user already left.

59− private var createSessionJob: Job? = null

60− // Tracks the in-flight loadMessages coroutine. Rapidly switching sessions launches

61− // several; cancel the prior one so only the newest fetch runs (saves needless requests).

62− private var loadMessagesJob: Job? = null

63− // Tracks the in-flight probeHealth coroutine. Rapid double-taps on Connect would

64− // otherwise launch two concurrent health probes; cancel the prior one first.

65− private var connectJob: Job? = null

66− // Tracks the in-flight DeleteSession coroutine so navigating away can cancel it

67− // before its response handler mutates the sessions list / screen the user already left.

68− private var deleteSessionJob: Job? = null

69− // Tracks the in-flight sendMessage coroutine so navigating away or switching sessions

70− // can cancel it before its response handler touches stale message state.

71− private var sendMessageJob: Job? = null

72− // Tracks the in-flight abort coroutine (CancelGeneration) so rapid cancel taps don't

73− // fire multiple abort requests, and navigating away can cancel it.

74− private var abortJob: Job? = null

75− // Message IDs removed via SSE; a late MessageUpdated for one must not resurrect it.

76− private val removedMessageIds = mutableSetOf<String>()

77−

78− // ── Event entry point ──────────────────────────────────────────────────────

79− fun dispatch(event: Event) {

80− when (event) {

81− // Store the field verbatim while typing; normalizing here would fight

82− // the user's edits (e.g. eat the "://" as they type it). The URL is

83− // normalized once, on Connect.

84− // Clear any prior error as soon as the user edits a field, so a stale

85− // message (e.g. "Invalid credentials") doesn't linger while they correct it.

86− is Event.ServerUrlChanged -> { serverUrl = event.url; if (error != null) error = null; emit() }

87− is Event.UsernameChanged -> { username = event.value; if (error != null) error = null; emit() }

88− is Event.PasswordChanged -> { password = event.value; if (error != null) error = null; emit() }

89−

90− Event.Connect -> {

91− serverUrl = normalizeUrl(serverUrl)

92− if (serverUrl.isEmpty()) { error = "Enter a server URL"; emit(); return }

93− // The auth fields are showing but empty — sending the request now

94− // would just 401 again in a loop. Prompt for credentials instead.

95− if (authRequired && !hasCredentials()) { error = "Enter username and password"; emit(); return }

96− // Leave authRequired as-is; probeHealth sets it from the response (true on

97− // 401, false on success). Resetting it here just flickers the auth fields.

98− loading = true; error = null; emit()

99− connectJob?.cancel()

100− connectJob = scope.launch { probeHealth() }

101− }

102−

103− Event.LoadSessions -> {

104− if (!connected) { error = "Not connected"; emit(); return }

105− loading = true; emit()

106− loadSessionsJob?.cancel()

107− loadSessionsJob = scope.launch { loadSessions() }

108− }

109−

110− is Event.SelectSession -> {

111− // The session may have been deleted (e.g. via SSE) while the list was on

112− // screen; opening it would only 404 on loadMessages. Bail with an error.

113− val session = sessions.firstOrNull { it.id == event.id }

114− if (session == null) { error = "Session no longer exists"; emit(); return }

115− currentSessionTitle = session.title

116− currentSessionId = event.id

117− messages.clear()

118− removedMessageIds.clear()

119− screen = Screen.Chat

120− loading = true

121− generating = false

122− error = null

123− emit()

124− connectJob?.cancel()

125− abortJob?.cancel()

126− sendMessageJob?.cancel()

127− deleteSessionJob?.cancel()

128− loadMessagesJob?.cancel()

129− loadMessagesJob = scope.launch { loadMessages(event.id) }

130− }

131−

132− Event.CreateSession -> {

133− if (!connected) { error = "Not connected"; emit(); return }

134− loading = true; error = null; emit()

135− createSessionJob?.cancel()

136− createSessionJob = scope.launch { createSession() }

137− }

138−

139− is Event.DeleteSession -> {

140− if (!connected) { error = "Not connected"; emit(); return }

141− val id = event.id

142− // Delete on the server first; only drop it from the UI once that

143− // succeeds, so a failed request leaves the session recoverable.

144− loading = true; error = null; emit()

145− deleteSessionJob?.cancel()

146− deleteSessionJob = scope.launch {

147− http.delete("$serverUrl/session/$id", authHeader()).fold(

148− onSuccess = { resp ->

149− if (resp.code in 200..299) {

150− sessions.removeAll { it.id == id }

151− if (isCurrent(id)) {

152− currentSessionId = null

153− messages.clear()

154− screen = Screen.Sessions

155− }

156− } else {

157− error = "Failed to delete session"

158− }

159− loading = false

160− },

161− onFailure = {

162− error = "Failed to delete session"

163− loading = false

164− },

165− )

166− emit()

167− }

168− }

169−

170− is Event.DraftChanged -> { draft = event.text; emit() }

171−

172− is Event.SendMessage -> sendMessage(event.text)

173−

174− Event.CancelGeneration -> {

175− generating = false

176− messages.forEach { it.streaming = false }

177− emit()

178− val id = currentSessionId ?: return

179− // Debounce rapid cancel taps: cancel any in-flight abort before firing

180− // another so we don't stack duplicate abort requests.

181− abortJob?.cancel()

182− abortJob = scope.launch { http.postJson("$serverUrl/session/$id/abort", "{}", authHeader()) }

183− }

184−

185− Event.NavigateToSessions -> {

186− screen = Screen.Sessions

187− currentSessionId = null

188− messages.clear()

189− removedMessageIds.clear()

190− draft = ""

191− generating = false

192− // Clear any error from the chat (e.g. a failed send) so it doesn't

193− // linger on the sessions list after the user navigates back.

194− error = null

195− loading = true

196− emit()

197− connectJob?.cancel()

198− abortJob?.cancel()

199− createSessionJob?.cancel()

200− deleteSessionJob?.cancel()

201− sendMessageJob?.cancel()

202− loadMessagesJob?.cancel()

203− loadSessionsJob?.cancel()

204− loadSessionsJob = scope.launch { loadSessions() }

205− }

206−

207− Event.NavigateToConnect -> {

208− screen = Screen.Connect

209− connected = false

210− loading = false

211− generating = false

212− sessions.clear()

213− messages.clear()

214− removedMessageIds.clear()

215− currentSessionId = null

216− draft = ""

217− // Reset to the default so a late-firing close callback from the old

218− // SSE connection can't flash the reconnecting banner on the next connect.

219− sseConnected = true

220− connectJob?.cancel()

221− abortJob?.cancel()

222− createSessionJob?.cancel()

223− deleteSessionJob?.cancel()

224− sendMessageJob?.cancel()

225− loadMessagesJob?.cancel()

226− closeSse()

227− emit()

228− }

229−

230− Event.DismissError -> { error = null; emit() }

231− }

232− }

233−

234− /** Reconnect the stream on a fresh process (e.g. after rotation) if already connected. */

235− fun resumeStreamingIfConnected() {

236− if (connected && sse == null) startSse()

237− }

238−

239− fun shutdown() {

240− // Cancel every tracked coroutine before tearing down the stream so none can

241− // emit into a cancelled scope after the ViewModel is cleared.

242− connectJob?.cancel()

243− loadSessionsJob?.cancel()

244− createSessionJob?.cancel()

245− loadMessagesJob?.cancel()

246− deleteSessionJob?.cancel()

247− sendMessageJob?.cancel()

248− abortJob?.cancel()

249− closeSse()

250− }

251−

252− // ── Effects ────────────────────────────────────────────────────────────────

253− private fun sendMessage(raw: String) {

254− val text = raw.trim()

255− val session = currentSessionId ?: return

256− if (text.isEmpty()) return

257− // Debounce rapid double-taps on send: a send is already in flight, so a second

258− // tap would create a duplicate user message and fire a duplicate request.

259− if (generating) return

260− localSeq += 1

261− val user = MsgState("local-$localSeq", "user", System.currentTimeMillis()).apply {

262− status = MessageStatus.Pending

263− textParts["local"] = text

264− }

265− messages.add(user)

266− // Keep the draft text so we can restore it if the send fails; otherwise the

267− // user's message is lost and they'd have to retype it.

268− val savedDraft = draft

269− draft = ""

270− generating = true

271− error = null

272− emit()

273−

274− val body = Protocol.json.encodeToString(PromptBody.serializer(), PromptBody(listOf(TextInput(text = text))))

275− sendMessageJob?.cancel()

276− sendMessageJob = scope.launch {

277− val result = http.postJson("$serverUrl/session/$session/prompt_async", body, authHeader())

278− result.fold(

279− onSuccess = { resp ->

280− if (resp.code in 200..299) {

281− messages.firstOrNull { it.id == user.id }?.status = MessageStatus.Sent

282− } else {

283− messages.firstOrNull { it.id == user.id }?.status = MessageStatus.Failed

284− generating = false

285− messages.forEach { it.streaming = false }

286− draft = savedDraft

287− error = "Server returned status ${resp.code}"

288− }

289− },

290− onFailure = { e ->

291− messages.firstOrNull { it.id == user.id }?.status = MessageStatus.Failed

292− generating = false

293− messages.forEach { it.streaming = false }

294− draft = savedDraft

295− error = "Request failed: ${e.message}"

296− },

297− )

298− emit()

299− }

300− }

301−

302− private suspend fun probeHealth() {

303− val hasCreds = hasCredentials()

304− http.get("$serverUrl/global/health", authHeader()).fold(

305− onSuccess = { resp ->

306− when {

307− resp.code == 401 -> {

308− loading = false

309− // A prior connection may have succeeded (connected = true); a

310− // re-probe returning 401 (e.g. expired credentials) means we're

311− // no longer authenticated, so drop the connected flag.

312− connected = false

313− // Always reveal the auth fields so the user can see/edit

314− // their credentials — even when the ones supplied were wrong.

315− authRequired = true

316− if (hasCreds) error = "Invalid credentials"

317− emit()

318− }

319− resp.code in 200..299 -> {

320− connected = true

321− authRequired = false

322− error = null

323− screen = Screen.Sessions

324− loading = true

325− emit()

326− startSse()

327− // Route through loadSessionsJob so a prior in-flight loadSessions

328− // (e.g. from a rapid double-connect) is cancelled first.

329− loadSessionsJob?.cancel()

330− loadSessionsJob = scope.launch { loadSessions() }

331− }

332− else -> {

333− loading = false

334− connected = false

335− error = "Server returned status ${resp.code}"

336− emit()

337− }

338− }

339− },

340− onFailure = { e ->

341− loading = false

342− connected = false

343− error = "Connection failed: ${e.message}"

344− emit()

345− },

346− )

347− }

348−

349− private suspend fun loadSessions() {

350− http.get("$serverUrl/session", authHeader()).fold(

351− onSuccess = { resp ->

352− if (resp.code in 200..299) {

353− sessions.clear()

354− sessions.addAll(Protocol.parseSessions(resp.body).map { SessionView(it.id, displayTitle(it.title)) })

355− // Impose a stable alphabetical order so the list doesn't shuffle with

356− // whatever order the server happens to return sessions in.

357− sessions.sortBy { it.title.lowercase() }

358− } else {

359− error = "Server returned status ${resp.code}"

360− }

361− },

362− onFailure = { e -> error = "Request failed: ${e.message}" },

363− )

364− loading = false

365− emit()

366− }

367−

368− private suspend fun createSession() {

369− http.postJson("$serverUrl/session", "{}", authHeader()).fold(

370− onSuccess = { resp ->

371− val session = if (resp.code in 200..299) Protocol.parseSession(resp.body) else null

372− if (session != null) {

373− if (sessions.none { it.id == session.id }) {

374− sessions.add(0, SessionView(session.id, displayTitle(session.title)))

375− // Restore the alphabetical order immediately (matching loadSessions /

376− // SessionUpserted) so the new session doesn't sit out-of-order at the

377− // top until the SSE SessionUpserted event arrives to re-sort.

378− sessions.sortBy { it.title.lowercase() }

379− }

380− emit()

381− // SelectSession takes over the loading state (loads messages).

382− dispatch(Event.SelectSession(session.id))

383− return

384− }

385− error = "Server returned status ${resp.code}"

386− },

387− onFailure = { e -> error = "Request failed: ${e.message}" },

388− )

389− loading = false

390− emit()

391− }

392−

393− private suspend fun loadMessages(sessionId: String) {

394− http.get("$serverUrl/session/$sessionId/message", authHeader()).fold(

395− onSuccess = { resp ->

396− if (!isCurrent(sessionId)) { loading = false; return } // user navigated away while loading

397− loading = false

398− if (resp.code in 200..299) {

399− messages.clear()

400− removedMessageIds.clear()

401− messages.addAll(Protocol.parseMessages(resp.body).map(::messageFromWire))

402− generating = messages.any { it.streaming }

403− } else {

404− error = "Server returned status ${resp.code}"

405− }

406− emit()

407− },

408− onFailure = { e ->

409− if (!isCurrent(sessionId)) { loading = false; return }

410− loading = false

411− generating = false

412− error = "Request failed: ${e.message}"

413− emit()

414− },

415− )

416− }

417−

418− // ── SSE ─────────────────────────────────────────────────────────────────────

419− private fun startSse() {

420− closeSse()

421− sseClosedIntentionally = false

422− val client = SseClient(

423− url = "$serverUrl/event",

424− auth = authHeader(),

425− onEvent = { json -> scope.launch { handleServerEvent(json) } },

426− onStateChange = { open ->

427− scope.launch {

428− sseConnected = open

429− if (open) reconnectAttempts = 0 else scheduleReconnect()

430− emit()

431− }

432− },

433− )

434− sse = client

435− client.connect()

436− }

437−

438− private fun closeSse() {

439− sseClosedIntentionally = true

440− reconnectJob?.cancel()

441− reconnectJob = null

442− sse?.close()

443− sse = null

444− }

445−

446− private fun scheduleReconnect() {

447− if (sseClosedIntentionally || !connected) return

448− // Exponential backoff: 2s, 4s, 8s, 16s, capped at 30s. Reset to 0 once the

449− // stream reconnects (onStateChange(true)) so a healthy server starts fresh.

450− val delayMs = (2000L * (1L shl reconnectAttempts)).coerceAtMost(30_000L)

451− if (delayMs < 30_000L) reconnectAttempts += 1

452− // Cancel any pending reconnect so rapid network flapping can't stack multiple

453− // coroutines that each open a new SSE connection.

454− reconnectJob?.cancel()

455− reconnectJob = scope.launch {

456− delay(delayMs)

457− if (!sseClosedIntentionally && connected && screen != Screen.Connect) startSse()

458− }

459− }

460−

461− private fun handleServerEvent(json: String) {

462− val event = Protocol.parseEvent(json) ?: return

463− // Only re-render if the event actually changed our state; applyEvent returns

464− // false for events that don't apply (other session, unknown message, …).

465− if (applyEvent(event)) emit()

466− }

467−

468− /** Apply a server event to the model. Returns true iff any state actually changed. */

469− private fun applyEvent(event: Protocol.Event): Boolean {

470− when (event) {

471− is Protocol.Event.MessageUpdated -> {

472− val info = event.info

473− if (info.role != "assistant" || !isCurrent(info.sessionId)) return false

474− // A MessageRemoved may have arrived before this (late/out-of-order) update;

475− // don't re-create a message the server has already deleted.

476− if (info.id in removedMessageIds) return false

477− val streaming = info.time.completed == null && info.error == null

478− val existing = messages.firstOrNull { it.id == info.id }

479− if (existing != null) {

480− existing.streaming = streaming

481− if (existing.time == 0L) existing.time = info.time.created

482− } else {

483− messages.add(MsgState(info.id, "assistant", info.time.created).apply { this.streaming = streaming })

484− }

485− info.error?.let { error = it.message(); messages.forEach { m -> m.streaming = false }; generating = false }

486− return true

487− }

488−

489− is Protocol.Event.PartUpdated -> {

490− val part = event.part

491− val msg = messages.firstOrNull { it.id == part.messageId } ?: return false

492− // Synthetic text parts are intentionally skipped; report no change so we

493− // don't trigger a needless re-render/emit for them.

494− return when (part) {

495− is Protocol.Part.Text -> if (part.synthetic) {

496− false

497− } else {

498− msg.textParts[part.id] = pickText(part.text, event.delta, msg.textParts[part.id])

499− true

500− }

501− is Protocol.Part.Reasoning -> {

502− msg.reasoningParts[part.id] = pickText(part.text, event.delta, msg.reasoningParts[part.id])

503− true

504− }

505− is Protocol.Part.Tool -> {

506− msg.toolParts[part.id] = ToolView(part.tool, part.status, part.title)

507− true

508− }

509− }

510− }

511−

512− is Protocol.Event.PartRemoved -> {

513− val msg = messages.firstOrNull { it.id == event.messageId } ?: return false

514− msg.remove(event.partId)

515− return true

516− }

517−

518− is Protocol.Event.MessageRemoved -> {

519− // Remember the ID so a late MessageUpdated can't resurrect the message.

520− removedMessageIds.add(event.messageId)

521− return messages.removeAll { it.id == event.messageId }

522− }

523−

524− is Protocol.Event.SessionIdle -> {

525− if (!isCurrent(event.sessionId)) return false

526− generating = false

527− messages.forEach { it.streaming = false }

528− return true

529− }

530−

531− is Protocol.Event.SessionError -> {

532− val scoped = event.sessionId == null || isCurrent(event.sessionId)

533− if (!scoped) return false

534− event.error?.let { error = it.message() }

535− generating = false

536− messages.forEach { it.streaming = false }

537− return true

538− }

539−

540− is Protocol.Event.SessionUpserted -> {

541− val title = displayTitle(event.info.title)

542− val existing = sessions.firstOrNull { it.id == event.info.id }

543− if (existing != null) {

544− sessions[sessions.indexOf(existing)] = SessionView(event.info.id, title)

545− } else {

546− sessions.add(0, SessionView(event.info.id, title))

547− }

548− // Keep the list alphabetically sorted (matching loadSessions) so an

549− // upserted session doesn't jump to the top and break the ordering.

550− sessions.sortBy { it.title.lowercase() }

551− if (isCurrent(event.info.id)) currentSessionTitle = title

552− return true

553− }

554−

555− is Protocol.Event.SessionDeleted -> {

556− val id = event.sessionId ?: return false

557− val removed = sessions.removeAll { it.id == id }

558− if (isCurrent(id)) {

559− currentSessionId = null

560− messages.clear()

561− screen = Screen.Sessions

562− return true

563− }

564− return removed

565− }

566−

567− Protocol.Event.Other -> return false

568− }

569− }

570−

571− // ── View / helpers ──────────────────────────────────────────────────────────

572− private fun snapshot() = UiState(

573− screen = screen,

574− serverUrl = serverUrl,

575− username = username,

576− password = password,

577− authRequired = authRequired,

578− connected = connected,

579− loading = loading,

580− error = error,

581− sessions = sessions.toList(),

582− currentSessionId = currentSessionId,

583− currentSessionTitle = currentSessionTitle,

584− messages = messages.map { it.toView() },

585− draft = draft,

586− generating = generating,

587− sseConnected = sseConnected,

588− )

589−

590− private fun emit() { _view.value = snapshot() }

591−

592− private fun isCurrent(sessionId: String?) = sessionId != null && currentSessionId == sessionId

593− private fun hasCredentials() = username.isNotEmpty() || password.isNotEmpty()

594−

595− private fun authHeader(): String? {

596− if (!hasCredentials()) return null

597− val encoded = Base64.getEncoder().encodeToString("$username:$password".toByteArray())

598− return "Basic $encoded"

599− }

600−}

601−

602−// ── Internal message state (parts tracked by id for streaming) ─────────────────

603−private class MsgState(val id: String, val role: String, var time: Long) {

604− var status = MessageStatus.Sent

605− var streaming = false

606− val textParts = LinkedHashMap<String, String>()

607− val reasoningParts = LinkedHashMap<String, String>()

608− val toolParts = LinkedHashMap<String, ToolView>()

609−

610− fun remove(partId: String) {

611− textParts.remove(partId)

612− reasoningParts.remove(partId)

613− toolParts.remove(partId)

614− }

615−

616− fun toView(): MessageView {

617− val reasoning = reasoningParts.values.joinToString("")

618− return MessageView(

619− id = id,

620− role = role,

621− text = textParts.values.joinToString(""),

622− reasoning = reasoning.ifEmpty { null },

623− tools = toolParts.values.toList(),

624− time = time,

625− status = status,

626− streaming = streaming,

627− )

628− }

629−}

630−

631−private fun messageFromWire(env: Protocol.WireMessageEnvelope): MsgState {

632− val info = env.info

633− val msg = MsgState(info.id, info.role, info.time.created)

634− msg.streaming = info.role == "assistant" && info.time.completed == null && info.error == null

635− for (raw in env.parts) {

636− val obj = (raw as? kotlinx.serialization.json.JsonObject) ?: continue

637− when (val part = Protocol.parsePart(obj)) {

638− is Protocol.Part.Text -> if (!part.synthetic) msg.textParts[part.id] = part.text

639− is Protocol.Part.Reasoning -> msg.reasoningParts[part.id] = part.text

640− is Protocol.Part.Tool -> msg.toolParts[part.id] = ToolView(part.tool, part.status, part.title)

641− null -> Unit

642− }

643− }

644− return msg

645−}

646−

647−private fun pickText(text: String, delta: String?, prior: String?): String =

648− if (text.isNotEmpty()) text else (prior.orEmpty() + (delta ?: ""))

649−

650−private fun normalizeUrl(url: String): String {

651− val trimmed = url.trim().trimEnd('/')

652− // Default to http:// when the user didn't type a scheme (e.g. "192.168.1.10:4096").

653− // Without a scheme OkHttp's URL parser throws and the connect attempt crashes.

654− return when {

655− trimmed.isEmpty() -> ""

656− "://" in trimmed -> trimmed

657− else -> "http://$trimmed"

658− }

659−}

660−

661−private fun displayTitle(title: String): String = title.trim().ifEmpty { "Untitled" }

662−

663−// ── Prompt request body (POST /session/{id}/prompt_async) ──────────────────────

664−@kotlinx.serialization.Serializable

665−private data class PromptBody(val parts: List<TextInput>)

666−

667−@kotlinx.serialization.Serializable

668−private data class TextInput(val type: String = "text", val text: String)

app/src/main/java/soy/iko/opencode/core/Protocol.ktdeleted−148

@@ -1,148 +0,0 @@

1−package soy.iko.opencode.core

2−

3−import kotlinx.serialization.SerialName

4−import kotlinx.serialization.Serializable

5−import kotlinx.serialization.json.Json

6−import kotlinx.serialization.json.JsonElement

7−import kotlinx.serialization.json.JsonObject

8−import kotlinx.serialization.json.JsonPrimitive

9−import kotlinx.serialization.json.booleanOrNull

10−import kotlinx.serialization.json.contentOrNull

11−import kotlinx.serialization.json.decodeFromJsonElement

12−import kotlinx.serialization.json.jsonObject

13−

14−/**

15− * Wire types for the opencode HTTP + SSE API, and lenient parsers for them.

16− *

17− * This is the Kotlin counterpart of the Rust core's `protocol.rs`. It is

18− * deliberately forgiving: unknown JSON fields are ignored and every union has a

19− * catch-all so new server versions never break the stream parser.

20− */

21−object Protocol {

22− val json = Json {

23− ignoreUnknownKeys = true

24− isLenient = true

25− coerceInputValues = true

26− }

27−

28− // ─── Sessions ────────────────────────────────────────────────────────────

29−

30− @Serializable

31− data class WireSession(val id: String, val title: String = "")

32−

33− fun parseSessions(body: String): List<WireSession> =

34− runCatching { json.decodeFromString<List<WireSession>>(body) }.getOrDefault(emptyList())

35−

36− fun parseSession(body: String): WireSession? =

37− runCatching { json.decodeFromString<WireSession>(body) }.getOrNull()

38−

39− // ─── Messages ────────────────────────────────────────────────────────────

40−

41− @Serializable

42− data class WireTime(val created: Long = 0, val completed: Long? = null)

43−

44− @Serializable

45− data class WireError(val name: String = "", val data: JsonElement? = null) {

46− fun message(): String {

47− val msg = ((data as? JsonObject)?.get("message") as? JsonPrimitive)?.contentOrNull

48− return when {

49− !msg.isNullOrEmpty() -> msg

50− name.isNotEmpty() -> name

51− else -> "Unknown error"

52− }

53− }

54− }

55−

56− @Serializable

57− data class WireMessageInfo(

58− val id: String,

59− val role: String = "",

60− @SerialName("sessionID") val sessionId: String = "",

61− val time: WireTime = WireTime(),

62− val error: WireError? = null,

63− )

64−

65− @Serializable

66− data class WireMessageEnvelope(

67− val info: WireMessageInfo,

68− val parts: List<JsonElement> = emptyList(),

69− )

70−

71− fun parseMessages(body: String): List<WireMessageEnvelope> =

72− runCatching { json.decodeFromString<List<WireMessageEnvelope>>(body) }.getOrDefault(emptyList())

73−

74− // ─── Parts (content union, parsed by hand for robustness) ─────────────────

75−

76− sealed interface Part {

77− val id: String

78− val messageId: String

79−

80− data class Text(override val id: String, override val messageId: String, val text: String, val synthetic: Boolean) : Part

81− data class Reasoning(override val id: String, override val messageId: String, val text: String) : Part

82− data class Tool(override val id: String, override val messageId: String, val tool: String, val status: String, val title: String?) : Part

83− }

84−

85− /** Parse a single part JSON object; returns null for kinds we don't render. */

86− fun parsePart(obj: JsonObject): Part? {

87− val id = obj.str("id")

88− val messageId = obj.str("messageID")

89− return when (obj.str("type")) {

90− "text" -> Part.Text(id, messageId, obj.str("text"), obj.bool("synthetic"))

91− "reasoning" -> Part.Reasoning(id, messageId, obj.str("text"))

92− "tool" -> {

93− val state = obj["state"] as? JsonObject

94− val status = state?.str("status")?.ifEmpty { "pending" } ?: "pending"

95− val title = state?.str("title")?.ifEmpty { null } ?: state?.str("error")?.ifEmpty { null }

96− Part.Tool(id, messageId, obj.str("tool"), status, title)

97− }

98− else -> null

99− }

100− }

101−

102− // ─── SSE `/event` stream ──────────────────────────────────────────────────

103−

104− sealed interface Event {

105− data class MessageUpdated(val info: WireMessageInfo) : Event

106− data class PartUpdated(val part: Part, val delta: String?) : Event

107− data class PartRemoved(val messageId: String, val partId: String) : Event

108− data class MessageRemoved(val messageId: String) : Event

109− data class SessionIdle(val sessionId: String) : Event

110− data class SessionError(val sessionId: String?, val error: WireError?) : Event

111− data class SessionUpserted(val info: WireSession) : Event

112− data class SessionDeleted(val sessionId: String?) : Event

113− data object Other : Event

114− }

115−

116− /** Parse one raw SSE `data:` payload into an [Event]; null if malformed. */

117− fun parseEvent(raw: String): Event? {

118− val root = runCatching { json.parseToJsonElement(raw).jsonObject }.getOrNull() ?: return null

119− val props = root["properties"] as? JsonObject ?: JsonObject(emptyMap())

120− return when (root.str("type")) {

121− "message.updated" -> decode<WireMessageInfo>(props["info"])?.let { Event.MessageUpdated(it) }

122− "message.part.updated" -> {

123− val partObj = props["part"] as? JsonObject ?: return Event.Other

124− parsePart(partObj)?.let { Event.PartUpdated(it, props.str("delta").ifEmpty { null }) } ?: Event.Other

125− }

126− "message.part.removed" -> Event.PartRemoved(props.str("messageID"), props.str("partID"))

127− "message.removed" -> Event.MessageRemoved(props.str("messageID"))

128− "session.idle" -> Event.SessionIdle(props.str("sessionID"))

129− "session.error" -> Event.SessionError(props.str("sessionID").ifEmpty { null }, decode<WireError>(props["error"]))

130− "session.created", "session.updated" -> decode<WireSession>(props["info"])?.let { Event.SessionUpserted(it) }

131− "session.deleted" -> Event.SessionDeleted(

132− props.str("sessionID").ifEmpty { null } ?: (props["info"] as? JsonObject)?.str("id")?.ifEmpty { null },

133− )

134− else -> Event.Other

135− }

136− }

137−

138− private inline fun <reified T> decode(el: JsonElement?): T? =

139− el?.let { runCatching { json.decodeFromJsonElement<T>(it) }.getOrNull() }

140−

141− // ─── Small JSON helpers ───────────────────────────────────────────────────

142−

143− private fun JsonObject.str(key: String): String =

144− (this[key] as? JsonPrimitive)?.contentOrNull ?: ""

145−

146− private fun JsonObject.bool(key: String): Boolean =

147− (this[key] as? JsonPrimitive)?.let { it.booleanOrNull ?: it.contentOrNull?.toBoolean() } ?: false

148−}

app/src/main/java/soy/iko/opencode/core/SseClient.ktdeleted−63

@@ -1,63 +0,0 @@

1−package soy.iko.opencode.core

2−

3−import okhttp3.OkHttpClient

4−import okhttp3.Request

5−import okhttp3.Response

6−import okhttp3.sse.EventSource

7−import okhttp3.sse.EventSourceListener

8−import okhttp3.sse.EventSources

9−import java.util.concurrent.TimeUnit

10−

11−/**

12− * Long-lived subscription to the opencode `/event` SSE stream.

13− *

14− * Crux only models request/response HTTP, so the streaming connection lives here

15− * in the shell: each decoded event's `data` payload (a JSON object whose own

16− * `type` field is the discriminant) is handed to [onEvent], which the core then

17− * parses via [Protocol.parseEvent].

18− */

19−class SseClient(

20− private val url: String,

21− private val auth: String?,

22− private val onEvent: (String) -> Unit,

23− private val onStateChange: (Boolean) -> Unit,

24−) {

25− // A dedicated client with no read timeout — the stream is meant to stay open.

26− private val client = OkHttpClient.Builder()

27− .connectTimeout(15, TimeUnit.SECONDS)

28− .readTimeout(0, TimeUnit.SECONDS)

29− .retryOnConnectionFailure(true)

30− .build()

31−

32− private var source: EventSource? = null

33−

34− fun connect() {

35− val builder = Request.Builder().url(url).header("Accept", "text/event-stream")

36− builder.header("User-Agent", "opencode-android/1.0")

37− if (auth != null) builder.header("Authorization", auth)

38− source = EventSources.createFactory(client).newEventSource(builder.build(), listener)

39− }

40−

41− fun close() {

42− source?.cancel()

43− source = null

44− }

45−

46− private val listener = object : EventSourceListener() {

47− override fun onOpen(eventSource: EventSource, response: Response) {

48− onStateChange(true)

49− }

50−

51− override fun onEvent(eventSource: EventSource, id: String?, type: String?, data: String) {

52− if (data.isNotBlank()) onEvent(data)

53− }

54−

55− override fun onClosed(eventSource: EventSource) {

56− onStateChange(false)

57− }

58−

59− override fun onFailure(eventSource: EventSource, t: Throwable?, response: Response?) {

60− onStateChange(false)

61− }

62− }

63−}

app/src/main/java/soy/iko/opencode/core/ViewModel.ktdeleted−77

@@ -1,77 +0,0 @@

1−package soy.iko.opencode.core

2−

3−/**

4− * Immutable snapshot the UI renders. Mirrors the Rust core's `ViewModel`, so

5− * the two implementations stay behaviourally identical.

6− */

7−

8−enum class Screen { Connect, Sessions, Chat }

9−

10−enum class MessageStatus { Sent, Pending, Failed }

11−

12−data class SessionView(

13− val id: String,

14− val title: String,

15−)

16−

17−data class ToolView(

18− val name: String,

19− val status: String,

20− val title: String?,

21−)

22−

23−data class MessageView(

24− val id: String,

25− val role: String,

26− val text: String,

27− val reasoning: String?,

28− val tools: List<ToolView>,

29− val time: Long,

30− val status: MessageStatus,

31− val streaming: Boolean,

32−) {

33− val isUser: Boolean get() = role == "user"

34−}

35−

36−data class UiState(

37− val screen: Screen = Screen.Connect,

38− val serverUrl: String = "",

39− val username: String = "",

40− val password: String = "",

41− val authRequired: Boolean = false,

42− val connected: Boolean = false,

43− val loading: Boolean = false,

44− val error: String? = null,

45− val sessions: List<SessionView> = emptyList(),

46− val currentSessionId: String? = null,

47− val currentSessionTitle: String = "",

48− val messages: List<MessageView> = emptyList(),

49− val draft: String = "",

50− val generating: Boolean = false,

51− val sseConnected: Boolean = true,

52−)

53−

54−/**

55− * Everything the shell can ask the core to do. Internal HTTP results are not

56− * events here (unlike the Rust core, which routes them through `then_send`);

57− * the Kotlin driver awaits them inline in coroutines instead.

58− */

59−sealed interface Event {

60− data class ServerUrlChanged(val url: String) : Event

61− data class UsernameChanged(val value: String) : Event

62− data class PasswordChanged(val value: String) : Event

63− data object Connect : Event

64−

65− data object LoadSessions : Event

66− data class SelectSession(val id: String) : Event

67− data object CreateSession : Event

68− data class DeleteSession(val id: String) : Event

69−

70− data class DraftChanged(val text: String) : Event

71− data class SendMessage(val text: String) : Event

72− data object CancelGeneration : Event

73−

74− data object NavigateToSessions : Event

75− data object NavigateToConnect : Event

76− data object DismissError : Event

77−}

app/src/main/java/soy/iko/opencode/data/model/Agent.ktnew file+37

@@ -0,0 +1,37 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+

6+/** Entry from `GET /agent`. */

7+@Immutable

8+@Serializable

9+data class Agent(

10+ // Defaulted so one name-less element in GET /agent doesn't fail the whole list decode

11+ // (emptying the agent picker) — matches the resilient-decoding philosophy. A blank name is

12+ // degraded but recoverable; a thrown decode is not.

13+ val name: String = "",

14+ val description: String? = null,

15+ val mode: String? = null,

16+ val builtIn: Boolean = false,

17+ val prompt: String? = null,

18+) {

19+ val isPrimary: Boolean get() = mode == "primary"

20+ val displayDescription: String get() = description?.takeIf { it.isNotBlank() } ?: "Custom agent"

21+}

22+

23+/** Entry from `GET /command`. */

24+@Immutable

25+@Serializable

26+data class Command(

27+ // Defaulted so one name-less element in GET /command doesn't fail the whole list decode

28+ // (emptying the command picker) — matches the resilient-decoding philosophy.

29+ val name: String = "",

30+ val description: String? = null,

31+ val agent: String? = null,

32+ val model: String? = null,

33+ val template: String = "",

34+ val subtask: Boolean = false,

35+) {

36+ val displayDescription: String get() = description?.takeIf { it.isNotBlank() } ?: template.take(80)

37+}

app/src/main/java/soy/iko/opencode/data/model/BusEvent.ktnew file+109

@@ -0,0 +1,109 @@

1+package soy.iko.opencode.data.model

2+

3+import kotlinx.serialization.SerialName

4+import kotlinx.serialization.Serializable

5+

6+/**

7+ * The SSE envelope from `GET /event`: `{ "type": "<event>", "properties": { ... } }`.

8+ * Discriminated on `type` (the global discriminator). Unknown events decode to

9+ * [UnknownEvent] so the stream never dies on a new event type.

10+ *

11+ * Property shapes are kept lenient (nullable fields + ignoreUnknownKeys) because they

12+ * drift across opencode versions; the reducer only reads the fields it needs.

13+ */

14+@Serializable

15+sealed interface BusEvent

16+

17+@Serializable

18+@SerialName("server.connected")

19+data object ServerConnected : BusEvent

20+

21+@Serializable

22+@SerialName("message.updated")

23+data class MessageUpdated(val properties: Props) : BusEvent {

24+ @Serializable

25+ data class Props(val info: MessageInfo? = null)

26+}

27+

28+@Serializable

29+@SerialName("message.part.updated")

30+data class MessagePartUpdated(val properties: Props) : BusEvent {

31+ @Serializable

32+ data class Props(

33+ val part: Part,

34+ val sessionID: String? = null,

35+ val messageID: String? = null,

36+ )

37+}

38+

39+@Serializable

40+@SerialName("message.part.removed")

41+data class MessagePartRemoved(val properties: Props) : BusEvent {

42+ @Serializable

43+ data class Props(

44+ val sessionID: String? = null,

45+ val messageID: String? = null,

46+ val partID: String? = null,

47+ )

48+}

49+

50+@Serializable

51+@SerialName("message.removed")

52+data class MessageRemoved(val properties: Props) : BusEvent {

53+ @Serializable

54+ data class Props(

55+ val sessionID: String? = null,

56+ val messageID: String? = null,

57+ )

58+}

59+

60+@Serializable

61+@SerialName("session.idle")

62+data class SessionIdle(val properties: Props) : BusEvent {

63+ @Serializable

64+ data class Props(val sessionID: String? = null)

65+}

66+

67+@Serializable

68+@SerialName("session.error")

69+data class SessionError(val properties: Props) : BusEvent {

70+ @Serializable

71+ data class Props(

72+ val sessionID: String? = null,

73+ val error: kotlinx.serialization.json.JsonElement? = null,

74+ )

75+}

76+

77+@Serializable

78+@SerialName("session.updated")

79+data class SessionUpdated(val properties: Props) : BusEvent {

80+ @Serializable

81+ data class Props(val info: Session? = null, val sessionID: String? = null)

82+}

83+

84+@Serializable

85+@SerialName("session.deleted")

86+data class SessionDeleted(val properties: Props) : BusEvent {

87+ @Serializable

88+ data class Props(val info: Session? = null, val sessionID: String? = null)

89+}

90+

91+@Serializable

92+@SerialName("permission.updated")

93+data class PermissionUpdated(val properties: Permission) : BusEvent

94+

95+@Serializable

96+@SerialName("permission.replied")

97+data class PermissionReplied(val properties: Props) : BusEvent {

98+ @Serializable

99+ data class Props(

100+ val sessionID: String? = null,

101+ val permissionID: String? = null,

102+ val response: String? = null,

103+ )

104+}

105+

106+/** Fallback for any event type we don't model. */

107+@Serializable

108+@SerialName("__unknown")

109+data object UnknownEvent : BusEvent

app/src/main/java/soy/iko/opencode/data/model/Common.ktnew file+41

@@ -0,0 +1,41 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+

6+@Immutable

7+@Serializable

8+data class TimeInfo(

9+ val created: Long? = null,

10+ val updated: Long? = null,

11+ val completed: Long? = null,

12+)

13+

14+/** Timing carried by message parts and tool states. The opencode server sends `time: { start,

15+ * end?, compacted? }` for these (unlike Session/MessageInfo/Permission, which use the

16+ * created/updated/completed shape of [TimeInfo]). With `ignoreUnknownKeys`, modelling these

17+ * fields with [TimeInfo] would silently discard start/end/compacted — every part/tool time

18+ * would decode to all-nulls — so this separate shape exists for them. */

19+@Immutable

20+@Serializable

21+data class PartTimeInfo(

22+ val start: Long? = null,

23+ val end: Long? = null,

24+ val compacted: Long? = null,

25+)

26+

27+@Immutable

28+@Serializable

29+data class Tokens(

30+ val input: Long = 0,

31+ val output: Long = 0,

32+ val reasoning: Long = 0,

33+ val cache: Cache = Cache(),

34+) {

35+ @Serializable

36+ @Immutable

37+ data class Cache(

38+ val read: Long = 0,

39+ val write: Long = 0,

40+ )

41+}

app/src/main/java/soy/iko/opencode/data/model/Files.ktnew file+44

@@ -0,0 +1,44 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+

6+/** Entry from `GET /file?path=` (directory listing). */

7+@Immutable

8+@Serializable

9+data class FileNode(

10+ val name: String = "",

11+ val path: String = "",

12+ val type: String? = null,

13+ // Size in bytes and last-modified epoch-ms. The server doesn't currently emit these, so

14+ // they default to null and the browser renders nothing extra; optional + defaulted keeps

15+ // the client forward-compatible (resilient decoding) so the moment the server adds them

16+ // the listing shows size/date with no client change.

17+ val size: Long? = null,

18+ val mtime: Long? = null,

19+) {

20+ val isDirectory: Boolean get() = type == "directory"

21+}

22+

23+/** Response of `GET /file/content?path=`. */

24+@Immutable

25+@Serializable

26+data class FileContent(

27+ val type: String? = null, // "text" | "binary"

28+ val content: String = "",

29+ val diff: String? = null,

30+ val mimeType: String? = null,

31+ val encoding: String? = null,

32+) {

33+ val isBinary: Boolean get() = type == "binary" || encoding == "base64"

34+}

35+

36+/** Entry from `GET /file/status` (VCS status). */

37+@Immutable

38+@Serializable

39+data class FileStatusEntry(

40+ val path: String = "",

41+ val added: Int = 0,

42+ val removed: Int = 0,

43+ val status: String? = null, // "added" | "deleted" | "modified"

44+)

app/src/main/java/soy/iko/opencode/data/model/Message.ktnew file+69

@@ -0,0 +1,69 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.SerialName

5+import kotlinx.serialization.Serializable

6+import kotlinx.serialization.json.JsonElement

7+import kotlinx.serialization.json.JsonClassDiscriminator

8+

9+/**

10+ * The `info` object of a message. Discriminated on `role`, which differs from the

11+ * global `type` discriminator used by [Part], so this hierarchy overrides it.

12+ */

13+@OptIn(kotlinx.serialization.ExperimentalSerializationApi::class)

14+@Serializable

15+@JsonClassDiscriminator("role")

16+sealed interface MessageInfo {

17+ val id: String

18+ val sessionID: String

19+ val time: TimeInfo?

20+}

21+

22+@Immutable

23+@Serializable

24+@SerialName("user")

25+data class UserMessage(

26+ override val id: String = "",

27+ override val sessionID: String = "",

28+ override val time: TimeInfo? = null,

29+) : MessageInfo

30+

31+@Immutable

32+@Serializable

33+@SerialName("assistant")

34+data class AssistantMessage(

35+ override val id: String = "",

36+ override val sessionID: String = "",

37+ val parentID: String? = null,

38+ val providerID: String? = null,

39+ val modelID: String? = null,

40+ val cost: Double? = null,

41+ val tokens: Tokens? = null,

42+ // JsonElement (not JsonObject) so a server that sends `error` as a bare string/array — or any

43+ // non-object shape — decodes instead of throwing mid-AssistantMessage (the MessageInfo

44+ // polymorphic fallback can't catch that, since `role` already matched). Mirrors

45+ // SessionError.error. Not currently read by the UI, but kept tolerant for forward-compat.

46+ val error: JsonElement? = null,

47+ override val time: TimeInfo? = null,

48+) : MessageInfo {

49+ /** A run is complete once the server stamps a completion time. */

50+ val isComplete: Boolean get() = time?.completed != null

51+}

52+

53+/** Fallback for an unrecognized `role`, so new server roles never crash decoding. */

54+@Immutable

55+@Serializable

56+@SerialName("__unknown")

57+data class UnknownMessage(

58+ override val id: String = "",

59+ override val sessionID: String = "",

60+ override val time: TimeInfo? = null,

61+) : MessageInfo

62+

63+/** A message together with its parts — the shape returned by message endpoints and the prompt response. */

64+@Immutable

65+@Serializable

66+data class MessageWithParts(

67+ val info: MessageInfo,

68+ val parts: List<Part> = emptyList(),

69+)

app/src/main/java/soy/iko/opencode/data/model/Part.ktnew file+127

@@ -0,0 +1,127 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.SerialName

5+import kotlinx.serialization.Serializable

6+import kotlinx.serialization.json.JsonElement

7+import kotlinx.serialization.json.JsonObject

8+import kotlinx.serialization.json.JsonPrimitive

9+

10+/**

11+ * A message part — a discriminated union on `type` (the global class discriminator).

12+ * Unknown types decode to [UnknownPart] via the registered polymorphic default,

13+ * so the stream survives server additions.

14+ *

15+ * Every part carries [id] plus its parent [messageID]/[sessionID], which the reducer

16+ * uses to attach streamed parts to the right message.

17+ */

18+@Serializable

19+sealed interface Part {

20+ val id: String

21+ val messageID: String?

22+ val sessionID: String?

23+}

24+

25+@Immutable

26+@Serializable

27+@SerialName("text")

28+data class TextPart(

29+ override val id: String = "",

30+ override val messageID: String? = null,

31+ override val sessionID: String? = null,

32+ val text: String = "",

33+ val synthetic: Boolean = false,

34+ val ignored: Boolean = false,

35+ val time: PartTimeInfo? = null,

36+) : Part

37+

38+@Immutable

39+@Serializable

40+@SerialName("reasoning")

41+data class ReasoningPart(

42+ override val id: String = "",

43+ override val messageID: String? = null,

44+ override val sessionID: String? = null,

45+ val text: String = "",

46+ val time: PartTimeInfo? = null,

47+) : Part

48+

49+@Immutable

50+@Serializable

51+@SerialName("tool")

52+data class ToolPart(

53+ override val id: String = "",

54+ override val messageID: String? = null,

55+ override val sessionID: String? = null,

56+ val callID: String = "",

57+ val tool: String = "",

58+ val state: ToolState = ToolPending,

59+) : Part

60+

61+@Immutable

62+@Serializable

63+@SerialName("file")

64+data class FilePart(

65+ override val id: String = "",

66+ override val messageID: String? = null,

67+ override val sessionID: String? = null,

68+ val mime: String? = null,

69+ val filename: String? = null,

70+ val url: String? = null,

71+ // opencode's message-v2 schema sends `source` as a structured FilePartSource OBJECT

72+ // ({ type, path, text, ... }), not a string, for @-file mentions. Typing it as String

73+ // threw a SerializationException on decode — which the SSE path silently swallows, so the

74+ // whole part vanished. Keep it as a tolerant JsonElement (mirroring Permission.pattern) and

75+ // read the path via [sourcePath]; a bare-string source is still tolerated.

76+ val source: JsonElement? = null,

77+) : Part

78+

79+/** The file path referenced by a [FilePart.source]. opencode sends `source` as a FilePartSource

80+ * object whose `path` field holds the file path; older/other shapes may send a bare string.

81+ * Returns null when there's no usable path. */

82+val FilePart.sourcePath: String?

83+ get() = when (val s = source) {

84+ is JsonPrimitive -> if (s.isString) s.content else null

85+ is JsonObject -> (s["path"] as? JsonPrimitive)?.let { if (it.isString) it.content else null }

86+ else -> null

87+ }

88+

89+@Immutable

90+@Serializable

91+@SerialName("step-start")

92+data class StepStartPart(

93+ override val id: String = "",

94+ override val messageID: String? = null,

95+ override val sessionID: String? = null,

96+) : Part

97+

98+@Immutable

99+@Serializable

100+@SerialName("agent")

101+data class AgentPart(

102+ override val id: String = "",

103+ override val messageID: String? = null,

104+ override val sessionID: String? = null,

105+ val name: String = "",

106+) : Part

107+

108+@Immutable

109+@Serializable

110+@SerialName("step-finish")

111+data class StepFinishPart(

112+ override val id: String = "",

113+ override val messageID: String? = null,

114+ override val sessionID: String? = null,

115+ val cost: Double? = null,

116+ val tokens: Tokens? = null,

117+) : Part

118+

119+/** Fallback for an unrecognized `type`. */

120+@Immutable

121+@Serializable

122+@SerialName("__unknown")

123+data class UnknownPart(

124+ override val id: String = "",

125+ override val messageID: String? = null,

126+ override val sessionID: String? = null,

127+) : Part

app/src/main/java/soy/iko/opencode/data/model/Permission.ktnew file+58

@@ -0,0 +1,58 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+import kotlinx.serialization.json.JsonElement

6+import kotlinx.serialization.json.JsonArray

7+import kotlinx.serialization.json.JsonPrimitive

8+

9+/**

10+ * A permission request from `permission.updated`. The tool detail lives in [type] +

11+ * [pattern] + [metadata]; [pattern] is a string or array of strings on the wire, so

12+ * it's kept as a [JsonElement] and flattened for display.

13+ */

14+@Immutable

15+@Serializable

16+data class Permission(

17+ val id: String = "",

18+ val sessionID: String = "",

19+ val type: String? = null,

20+ val pattern: JsonElement? = null,

21+ val messageID: String? = null,

22+ val callID: String? = null,

23+ val title: String? = null,

24+ // JsonElement (not JsonObject) so a non-object `metadata` shape decodes instead of throwing,

25+ // matching [pattern]. Not read by the UI today, but kept tolerant for forward-compat.

26+ val metadata: JsonElement? = null,

27+ val time: TimeInfo? = null,

28+) {

29+ val patternText: String?

30+ get() = when (val p = pattern) {

31+ null -> null

32+ is JsonPrimitive -> p.content

33+ // Only a JSON array is flattened; any other shape (e.g. an object) would make

34+ // the previous unguarded `p.jsonArray` throw during composition, so treat it

35+ // as "no displayable pattern" instead.

36+ is JsonArray -> p.mapNotNull { (it as? JsonPrimitive)?.content }.joinToString(", ").ifEmpty { null }

37+ else -> null

38+ }

39+}

40+

41+/** Allowed values for the permission response body.

42+ *

43+ * [SESSION] is a client-side scope: it auto-responds [ONCE] to subsequent permission requests

44+ * whose (type, pattern) match a remembered set, without showing the dialog. The set lives in

45+ * [soy.iko.opencode.ui.chat.ChatViewModel] and is cleared on connection change. It is NOT sent

46+ * to the server (the server only knows `once`/`always`/`reject`); the VM maps it to [ONCE] on

47+ * the wire and tracks the grant locally. This gives users a middle ground between "allow once"

48+ * (re-prompts on every file read) and "always" (persists in the server config outliving the app). */

49+enum class PermissionResponse(val wire: String) {

50+ ONCE("once"),

51+ ALWAYS("always"),

52+ REJECT("reject"),

53+ SESSION("once"),

54+}

55+

56+/** Body for `POST /session/:id/permissions/:permissionID`. */

57+@Serializable

58+data class PermissionReplyBody(val response: String)

app/src/main/java/soy/iko/opencode/data/model/Project.ktnew file+32

@@ -0,0 +1,32 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+

6+/**

7+ * A project known to the server, from `GET /project`. A project corresponds to a git

8+ * worktree root; [worktree] is the absolute path the agent can run in. Used to populate

9+ * the directory picker when creating a session in a specific directory.

10+ */

11+@Immutable

12+@Serializable

13+data class Project(

14+ val id: String = "",

15+ val worktree: String = "",

16+ val vcs: String? = null,

17+ val time: TimeInfo? = null,

18+)

19+

20+/**

21+ * The server's current path info, from `GET /path`. [directory] is the working directory

22+ * a request with no `directory` override resolves to (the server's launch cwd), shown in

23+ * the picker as the "server default" option.

24+ */

25+@Immutable

26+@Serializable

27+data class PathInfo(

28+ val directory: String? = null,

29+ val worktree: String? = null,

30+ val state: String? = null,

31+ val config: String? = null,

32+)

app/src/main/java/soy/iko/opencode/data/model/Prompt.ktnew file+68

@@ -0,0 +1,68 @@

1+package soy.iko.opencode.data.model

2+

3+import kotlinx.serialization.SerialName

4+import kotlinx.serialization.Serializable

5+

6+/** Body for `POST /session/:id/message`. */

7+@Serializable

8+data class PromptRequest(

9+ val parts: List<PromptPart>,

10+ val model: ModelRef? = null,

11+ val agent: String? = null,

12+)

13+

14+/**

15+ * An input part for a prompt — a discriminated union on `type` (the global class

16+ * discriminator). We compose text and file (image/document attachment) parts; the server

17+ * models more (agent, subtask) that this client doesn't send.

18+ */

19+@Serializable

20+sealed interface PromptPart

21+

22+@Serializable

23+@SerialName("text")

24+data class TextPromptPart(val text: String) : PromptPart

25+

26+/**

27+ * A file/image attachment. [url] must be a data URL carrying the base64 payload —

28+ * `data:<mime>;base64,<bytes>` — which is how the server embeds media for the model to

29+ * see (see opencode's message-v2.ts). [mime] must match the payload; the server forwards

30+ * it as the model's mediaType.

31+ */

32+@Serializable

33+@SerialName("file")

34+data class FilePromptPart(

35+ val mime: String,

36+ val url: String,

37+ val filename: String? = null,

38+) : PromptPart

39+

40+/** Body for `POST /session/:id/command`. */

41+@Serializable

42+data class CommandRequest(

43+ val command: String,

44+ val arguments: String = "",

45+ val agent: String? = null,

46+)

47+

48+/** Body for `POST /session/:id/revert`. */

49+@Serializable

50+data class RevertRequest(

51+ val messageID: String,

52+ val partID: String? = null,

53+)

54+

55+/** Body for `POST /session/:id/summarize`. */

56+@Serializable

57+data class SummarizeRequest(

58+ val providerID: String,

59+ val modelID: String,

60+)

61+

62+/** Body for `POST /session/:id/shell`. */

63+@Serializable

64+data class ShellRequest(

65+ val agent: String,

66+ val command: String,

67+ val model: ModelRef? = null,

68+)

app/src/main/java/soy/iko/opencode/data/model/Provider.ktnew file+84

@@ -0,0 +1,84 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+

6+/** Response of `GET /config/providers`. */

7+@Immutable

8+@Serializable

9+data class ProvidersResponse(

10+ val providers: List<Provider> = emptyList(),

11+ val default: Map<String, String> = emptyMap(),

12+)

13+

14+@Immutable

15+@Serializable

16+data class Provider(

17+ // Defaulted so one id-less element in GET /config/providers doesn't fail the whole list decode

18+ // (emptying the model picker) — matches MessageInfo's defaulted id and the resilient-decoding

19+ // philosophy. A blank id is degraded but recoverable; a thrown decode is not.

20+ val id: String = "",

21+ val name: String? = null,

22+ val models: Map<String, ModelInfo> = emptyMap(),

23+) {

24+ val displayName: String get() = name?.takeIf { it.isNotBlank() } ?: id

25+}

26+

27+@Immutable

28+@Serializable

29+data class ModelInfo(

30+ val id: String? = null,

31+ val name: String? = null,

32+) {

33+ fun displayName(modelKey: String): String =

34+ name?.takeIf { it.isNotBlank() } ?: id ?: modelKey

35+}

36+

37+/** A flattened provider/model selection used by the prompt body and the model picker. */

38+@Immutable

39+@Serializable

40+data class ModelRef(

41+ val providerID: String,

42+ val modelID: String,

43+)

44+

45+/** A single selectable entry in the model picker, flattened from [ProvidersResponse]. */

46+@Immutable

47+data class ModelOption(

48+ val providerID: String,

49+ val modelID: String,

50+ val providerLabel: String,

51+ val modelLabel: String,

52+) {

53+ val ref: ModelRef get() = ModelRef(providerID, modelID)

54+}

55+

56+/** Flatten providers into a sorted list of pickable options. */

57+fun ProvidersResponse.toOptions(): List<ModelOption> =

58+ providers.flatMap { provider ->

59+ provider.models.map { (modelKey, info) ->

60+ ModelOption(

61+ providerID = provider.id,

62+ modelID = info.id ?: modelKey,

63+ providerLabel = provider.displayName,

64+ modelLabel = info.displayName(modelKey),

65+ )

66+ }

67+ }.sortedWith(

68+ // CASE_INSENSITIVE_ORDER compares in place; compareBy { it.x.lowercase() } would

69+ // allocate a fresh lowercased string on every comparison (O(N log N) allocations).

70+ compareBy<ModelOption, String>(String.CASE_INSENSITIVE_ORDER) { it.providerLabel }

71+ .thenBy(String.CASE_INSENSITIVE_ORDER) { it.modelLabel },

72+ )

73+

74+/** The default option to preselect: the server's default for some provider, else the first model. */

75+fun ProvidersResponse.defaultOption(options: List<ModelOption> = toOptions()): ModelOption? {

76+ // Try each configured provider default in turn and take the first whose model actually

77+ // survives in `options` (the list may be filtered). Checking only the first `default` entry

78+ // would mispreselect an arbitrary first option whenever that one provider's default model

79+ // isn't present, ignoring the other configured defaults.

80+ for ((providerID, modelID) in default) {

81+ options.firstOrNull { it.providerID == providerID && it.modelID == modelID }?.let { return it }

82+ }

83+ return options.firstOrNull()

84+}

app/src/main/java/soy/iko/opencode/data/model/Search.ktnew file+101

@@ -0,0 +1,101 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.SerialName

5+import kotlinx.serialization.Serializable

6+

7+/**

8+ * One ripgrep match from `GET /find?pattern=` (content search). [path] and [lines] are

9+ * wrapped `{ text }` objects on the wire; [submatches] carry the column offsets of each

10+ * hit within the line so the UI can highlight them.

11+ */

12+@Immutable

13+@Serializable

14+data class FindMatch(

15+ val path: TextField = TextField(),

16+ val lines: TextField = TextField(),

17+ @SerialName("line_number") val lineNumber: Int = 0,

18+ @SerialName("absolute_offset") val absoluteOffset: Long = 0,

19+ val submatches: List<SubMatch> = emptyList(),

20+) {

21+ @Immutable

22+ @Serializable

23+ data class TextField(val text: String = "")

24+

25+ @Immutable

26+ @Serializable

27+ data class SubMatch(

28+ val start: Int = 0,

29+ val end: Int = 0,

30+ )

31+

32+ /** The matched file's path (relative to the search root). */

33+ val filePath: String get() = path.text

34+

35+ /** The matching line's text, trimmed of a trailing newline for display. */

36+ val lineText: String get() = lines.text.trimEnd('\n', '\r')

37+}

38+

39+/**

40+ * One workspace symbol from `GET /find/symbol?query=`. [kind] is the LSP `SymbolKind`

41+ * integer; [location.uri] is a file URI and [location.range] the symbol's span.

42+ */

43+@Immutable

44+@Serializable

45+data class SymbolResult(

46+ val name: String = "",

47+ val kind: Int = 0,

48+ val location: Location = Location(),

49+) {

50+ @Immutable

51+ @Serializable

52+ data class Location(

53+ val uri: String = "",

54+ val range: Range = Range(),

55+ )

56+

57+ @Immutable

58+ @Serializable

59+ data class Range(

60+ val start: Pos = Pos(),

61+ val end: Pos = Pos(),

62+ )

63+

64+ @Immutable

65+ @Serializable

66+ data class Pos(

67+ val line: Int = 0,

68+ val character: Int = 0,

69+ )

70+

71+ /** The file path portion of [Location.uri], stripping a `file://` scheme when present.

72+ * Handles both empty-authority (`file:///abs/path`) and non-empty-authority

73+ * (`file://host/abs/path`) URIs by parsing the URI and taking its path component,

74+ * rather than a prefix strip that would leave the authority glued to the path. */

75+ val filePath: String

76+ get() {

77+ val uri = location.uri

78+ // Only parse file: URIs; for anything else, return as-is.

79+ if (!uri.startsWith("file:")) return uri

80+ return runCatching { java.net.URI(uri).path }

81+ .getOrNull()

82+ ?.takeIf { it.isNotBlank() }

83+ ?: uri.removePrefix("file://").ifBlank { uri }

84+ }

85+

86+ /** 1-based line for display; the wire range is 0-based. */

87+ val displayLine: Int get() = location.range.start.line + 1

88+}

89+

90+// LSP SymbolKind → label. A map lookup (rather than a large `when`) keeps the accessor

91+// trivial. Indices follow the LSP SymbolKind enum.

92+private val symbolKindLabels = mapOf(

93+ 1 to "file", 2 to "module", 3 to "namespace", 4 to "package", 5 to "class",

94+ 6 to "method", 7 to "property", 8 to "field", 9 to "constructor", 10 to "enum",

95+ 11 to "interface", 12 to "function", 13 to "variable", 14 to "constant", 15 to "string",

96+ 16 to "number", 17 to "boolean", 18 to "array", 19 to "object", 20 to "key",

97+ 22 to "enum member", 23 to "struct", 26 to "type",

98+)

99+

100+/** Human-readable label for an LSP [SymbolResult.kind]. */

101+fun symbolKindLabel(kind: Int): String = symbolKindLabels[kind] ?: "symbol"

app/src/main/java/soy/iko/opencode/data/model/ServerProfile.ktnew file+27

@@ -0,0 +1,27 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+

5+/**

6+ * A saved opencode server connection. The [password] for HTTP Basic auth is resolved

7+ * separately from EncryptedSharedPreferences and is null when not loaded/needed.

8+ */

9+@Immutable

10+data class ServerProfile(

11+ val id: String,

12+ val label: String,

13+ val baseUrl: String,

14+ val username: String? = null,

15+ val password: String? = null,

16+ val lastUsed: Long = 0,

17+ // When true, the client upgrades a cleartext http:// URL to https:// so credentials and

18+ // traffic are never sent over the wire in the clear for this server.

19+ val requireHttps: Boolean = false,

20+ // Optional OkHttp certificate pin(s) ("sha256/<base64>", whitespace/comma-separated for

21+ // multiple) applied to this server's TLS connection for defense against a rogue CA.

22+ val certPin: String? = null,

23+) {

24+ val hasAuth: Boolean get() = !username.isNullOrBlank()

25+

26+ val displayLabel: String get() = label.takeIf { it.isNotBlank() } ?: baseUrl

27+}

app/src/main/java/soy/iko/opencode/data/model/Session.ktnew file+68

@@ -0,0 +1,68 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+

6+/** A session as returned by `GET /session` and `POST /session`. */

7+@Immutable

8+@Serializable

9+data class Session(

10+ // Defaulted so one id-less element in GET /session doesn't fail the whole list decode

11+ // (emptying the session list) — matches MessageInfo's defaulted id and the resilient-decoding

12+ // philosophy. A blank id is degraded but recoverable; a thrown decode is not.

13+ val id: String = "",

14+ val parentID: String? = null,

15+ val title: String? = null,

16+ val version: String? = null,

17+ val time: TimeInfo? = null,

18+ // The absolute worktree/directory the agent runs in for this session. Set server-side

19+ // from the `directory` query param at creation; persisted per session so the client

20+ // needn't re-send it on follow-up calls (see OpencodeApiClient.createSession).

21+ val directory: String? = null,

22+ val projectID: String? = null,

23+ // Present only while the session is shared (POST /session/:id/share); cleared on unshare.

24+ val share: Share? = null,

25+ // Present only while a revert checkpoint is active (POST /session/:id/revert); cleared on unrevert.

26+ val revert: Revert? = null,

27+) {

28+ val displayTitle: String get() = title?.takeIf { it.isNotBlank() } ?: "Untitled session"

29+

30+ /** A compact form of [directory] for list/subtitle display: the last path segment,

31+ * or the full path when it has no separators. Null/blank when no directory is set. */

32+ val displayDirectory: String?

33+ get() = directory?.takeIf { it.isNotBlank() }?.trimEnd('/')?.substringAfterLast('/')?.takeIf { it.isNotBlank() }

34+

35+ /** True while the session has an active public share link. */

36+ val isShared: Boolean get() = !share?.url.isNullOrBlank()

37+

38+ /** True while a revert checkpoint is active (messages after it are hidden server-side). */

39+ val isReverted: Boolean get() = revert != null

40+

41+ /** Public share link for the session, from `POST /session/:id/share`. */

42+ @Immutable

43+ @Serializable

44+ data class Share(val url: String = "")

45+

46+ /** The active revert checkpoint, from `POST /session/:id/revert`. */

47+ @Immutable

48+ @Serializable

49+ data class Revert(

50+ val messageID: String = "",

51+ val partID: String? = null,

52+ val snapshot: String? = null,

53+ val diff: String? = null,

54+ )

55+}

56+

57+/** Body for `POST /session`. */

58+@Serializable

59+data class CreateSessionRequest(

60+ val parentID: String? = null,

61+ val title: String? = null,

62+)

63+

64+/** Body for `PATCH /session/:id`. */

65+@Serializable

66+data class UpdateSessionRequest(

67+ val title: String? = null,

68+)

app/src/main/java/soy/iko/opencode/data/model/Todo.ktnew file+125

@@ -0,0 +1,125 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.Serializable

5+import kotlinx.serialization.builtins.ListSerializer

6+import kotlinx.serialization.json.Json

7+import kotlinx.serialization.json.JsonElement

8+

9+/** The tool name opencode uses to write the agent's task plan. */

10+const val TODO_WRITE_TOOL = "todowrite"

11+

12+/**

13+ * A single entry in an agent's task plan, as written by opencode's `todowrite` tool.

14+ * Every field is defaulted and decoding ignores unknown keys (see [parseTodos]) so a

15+ * change to the tool's payload shape degrades to a best-effort render instead of

16+ * dropping the whole plan.

17+ */

18+@Immutable

19+@Serializable

20+data class TodoItem(

21+ val id: String = "",

22+ val content: String = "",

23+ val status: String = "pending",

24+ val priority: String? = null,

25+)

26+

27+/** Normalized lifecycle of a [TodoItem]; [UNKNOWN] covers any status the client doesn't model. */

28+enum class TodoStatus { PENDING, IN_PROGRESS, COMPLETED, CANCELLED, UNKNOWN }

29+

30+/** Normalized priority of a [TodoItem]; [NONE] covers null/unmodelled priorities. The order

31+ * matters: HIGH > MEDIUM > LOW, used by [TodoPlan] tinting and a11y labels. */

32+enum class TodoPriority { HIGH, MEDIUM, LOW, NONE }

33+

34+fun TodoItem.priorityEnum(): TodoPriority = when ((priority ?: "").trim().lowercase()) {

35+ "high", "h", "1", "urgent", "critical" -> TodoPriority.HIGH

36+ "medium", "med", "m", "normal", "2" -> TodoPriority.MEDIUM

37+ "low", "l", "3", "minor", "backlog" -> TodoPriority.LOW

38+ else -> TodoPriority.NONE

39+}

40+

41+fun TodoItem.statusEnum(): TodoStatus = when (status.trim().lowercase()) {

42+ "pending", "todo", "" -> TodoStatus.PENDING

43+ "in_progress", "in-progress", "inprogress", "running", "active" -> TodoStatus.IN_PROGRESS

44+ "completed", "complete", "done" -> TodoStatus.COMPLETED

45+ "cancelled", "canceled", "skipped" -> TodoStatus.CANCELLED

46+ else -> TodoStatus.UNKNOWN

47+}

48+

49+@Serializable

50+private data class TodoWriteInput(val todos: List<TodoItem> = emptyList())

51+

52+// A lenient decoder mirroring OpencodeJson's resilience (unknown keys ignored, nulls

53+// coerced to defaults) without pulling the network layer into data/model.

54+private val todoJson = Json {

55+ ignoreUnknownKeys = true

56+ isLenient = true

57+ coerceInputValues = true

58+ explicitNulls = false

59+}

60+

61+/**

62+ * Extract the todo list from a `todowrite` tool call's input JSON. The tool sends the

63+ * full list on every write, so a single call's input is a complete plan snapshot.

64+ * Accepts either the documented `{ "todos": [...] }` object or a bare array, and returns

65+ * an empty list on anything unparseable.

66+ */

67+fun parseTodos(input: JsonElement?): List<TodoItem> {

68+ if (input == null) return emptyList()

69+ return runCatching {

70+ todoJson.decodeFromJsonElement(TodoWriteInput.serializer(), input).todos

71+ }.recoverCatching {

72+ todoJson.decodeFromJsonElement(ListSerializer(TodoItem.serializer()), input)

73+ }.getOrDefault(emptyList())

74+}

75+

76+/**

77+ * The current task plan for a conversation: the todos of the most recent `todowrite`

78+ * tool call that carries a non-empty, parseable list. opencode rewrites the whole list

79+ * on every write, so a single call is a complete snapshot; scanning newest-first and

80+ * skipping empties avoids a mid-stream write (input not yet arrived) briefly blanking a

81+ * plan that's still valid.

82+ *

83+ * A caller-side cache ([TodoPlanCache]) memoizes the result against the input list's

84+ * identity so a back-to-back emission of the same list instance (e.g. a `combine` that

85+ * re-evaluates without a real upstream change) skips the O(messages×parts) scan. The

86+ * scan still runs whenever the list instance changes (every streamed snapshot), but

87+ * `distinctUntilChanged` downstream dedupes the *result* so the UI doesn't recompose.

88+ */

89+fun currentTodoPlan(messages: List<MessageWithParts>): List<TodoItem> {

90+ for (mi in messages.indices.reversed()) {

91+ val parts = messages[mi].parts

92+ for (pi in parts.indices.reversed()) {

93+ val part = parts[pi]

94+ if (part is ToolPart && part.tool.equals(TODO_WRITE_TOOL, ignoreCase = true)) {

95+ val todos = parseTodos(part.state.inputElement())

96+ if (todos.isNotEmpty()) return todos

97+ }

98+ }

99+ }

100+ return emptyList()

101+}

102+

103+/**

104+ * A tiny memoization layer for [currentTodoPlan]: if the same list instance is passed

105+ * twice in a row, the cached result is returned without re-scanning. The [ChatViewModel]

106+ * `todoPlan` flow's `combine` can re-emit the same list instance when an unrelated input

107+ * (e.g. the optimistic-messages StateFlow) updates without the SSE stream having changed;

108+ * without this cache, every such re-emit re-scans every part of every message off-main.

109+ *

110+ * Not thread-safe by design — it's only read from the `flowOn(Dispatchers.Default)`

111+ * operator's coroutine, which is single-threaded per emission. The cache holds a single

112+ * `(ref, result)` pair; a different list instance replaces it.

113+ */

114+class TodoPlanCache {

115+ private var lastRef: List<MessageWithParts>? = null

116+ private var lastResult: List<TodoItem> = emptyList()

117+

118+ fun plan(messages: List<MessageWithParts>): List<TodoItem> {

119+ if (messages === lastRef) return lastResult

120+ val result = currentTodoPlan(messages)

121+ lastRef = messages

122+ lastResult = result

123+ return result

124+ }

125+}

app/src/main/java/soy/iko/opencode/data/model/ToolState.ktnew file+62

@@ -0,0 +1,62 @@

1+package soy.iko.opencode.data.model

2+

3+import androidx.compose.runtime.Immutable

4+import kotlinx.serialization.SerialName

5+import kotlinx.serialization.Serializable

6+import kotlinx.serialization.json.JsonElement

7+import kotlinx.serialization.json.JsonClassDiscriminator

8+

9+/**

10+ * The state machine of a tool call, discriminated on `status`.

11+ * pending -> running -> completed | error

12+ */

13+@OptIn(kotlinx.serialization.ExperimentalSerializationApi::class)

14+@Serializable

15+@JsonClassDiscriminator("status")

16+sealed interface ToolState

17+

18+@Serializable

19+@SerialName("pending")

20+data object ToolPending : ToolState

21+

22+@Immutable

23+@Serializable

24+@SerialName("running")

25+data class ToolRunning(

26+ val input: JsonElement? = null,

27+ val title: String? = null,

28+ val time: PartTimeInfo? = null,

29+) : ToolState

30+

31+@Immutable

32+@Serializable

33+@SerialName("completed")

34+data class ToolCompleted(

35+ val input: JsonElement? = null,

36+ val output: String? = null,

37+ val title: String? = null,

38+ val time: PartTimeInfo? = null,

39+) : ToolState

40+

41+@Immutable

42+@Serializable

43+@SerialName("error")

44+data class ToolError(

45+ val input: JsonElement? = null,

46+ val error: String? = null,

47+ val time: PartTimeInfo? = null,

48+) : ToolState

49+

50+/** Fallback for an unrecognized `status`. */

51+@Serializable

52+@SerialName("__unknown")

53+data object ToolUnknown : ToolState

54+

55+/** The raw input arguments carried by a tool call, present on the running/completed/error

56+ * states (pending/unknown carry none). */

57+fun ToolState.inputElement(): JsonElement? = when (this) {

58+ is ToolRunning -> input

59+ is ToolCompleted -> input

60+ is ToolError -> input

61+ else -> null

62+}

app/src/main/java/soy/iko/opencode/data/network/CertPinUtil.ktnew file+35

@@ -0,0 +1,35 @@

1+package soy.iko.opencode.data.network

2+

3+import soy.iko.opencode.data.model.ServerProfile

4+

5+/**

6+ * Shared helpers for resolving a [ServerProfile]'s certificate-pin field and the

7+ * http→https upgrade it implies. The logic is used in three places that must agree:

8+ * [HttpClientFactory] (the REST/SSE channel), [soy.iko.opencode.OpencodeApp]'s

9+ * PinnedImageCallFactory (the image-loading channel), and [soy.iko.opencode.ui.components.RemoteImage]

10+ * (resolving image base URLs). Previously each call site carried its own private copy

11+ * with a "must be kept in sync" comment; the helpers here are the single source of truth.

12+ */

13+internal object CertPinUtil {

14+

15+ /** Split a certificate-pin field into individual OkHttp pins. Accepts whitespace- or

16+ * comma-separated "sha256/<base64>" entries; blank entries are dropped. */

17+ fun parseCertPins(raw: String?): List<String> =

18+ raw?.split(Regex("[\\s,]+"))?.map { it.trim() }?.filter { it.isNotEmpty() } ?: emptyList()

19+

20+ /** The base URL after applying [ServerProfile.requireHttps]: a cleartext http:// URL is

21+ * upgraded to https:// so the "Require HTTPS" choice is enforced at the transport layer.

22+ * A configured certificate pin also forces TLS: a pin is meaningless over cleartext and

23+ * would otherwise be silently dropped, so we honor the opt-in security control by upgrading

24+ * rather than connecting unpinned in the clear. Relies on [HttpClientFactory.normalizeBaseUrl]

25+ * for scheme/trailing-slash normalization. */

26+ fun effectiveBaseUrl(profile: ServerProfile): String {

27+ val normalized = HttpClientFactory.normalizeBaseUrl(profile.baseUrl)

28+ val forceHttps = profile.requireHttps || parseCertPins(profile.certPin).isNotEmpty()

29+ return if (forceHttps && normalized.lowercase().startsWith("http://")) {

30+ "https://" + normalized.substring("http://".length)

31+ } else {

32+ normalized

33+ }

34+ }

35+}

app/src/main/java/soy/iko/opencode/data/network/EventStreamClient.ktnew file+360

@@ -0,0 +1,360 @@

1+package soy.iko.opencode.data.network

2+

3+import soy.iko.opencode.data.model.BusEvent

4+import soy.iko.opencode.util.safeExceptionSummary

5+import android.util.Log

6+import io.ktor.client.HttpClient

7+import io.ktor.client.plugins.timeout

8+import io.ktor.client.plugins.sse.sse

9+import io.ktor.sse.ServerSentEvent

10+import kotlinx.coroutines.CancellationException

11+import kotlinx.coroutines.CoroutineScope

12+import kotlin.coroutines.EmptyCoroutineContext

13+import kotlinx.coroutines.channels.BufferOverflow

14+import kotlinx.coroutines.channels.Channel

15+import kotlinx.coroutines.channels.ChannelResult

16+import kotlinx.coroutines.flow.Flow

17+import kotlinx.coroutines.flow.MutableStateFlow

18+import kotlinx.coroutines.flow.SharedFlow

19+import kotlinx.coroutines.flow.StateFlow

20+import kotlinx.coroutines.flow.SharingStarted

21+import kotlinx.coroutines.flow.asStateFlow

22+import kotlinx.coroutines.flow.buffer

23+import kotlinx.coroutines.flow.channelFlow

24+import kotlinx.coroutines.flow.shareIn

25+import kotlinx.coroutines.isActive

26+import kotlinx.coroutines.launch

27+import kotlinx.coroutines.selects.onTimeout

28+import kotlinx.coroutines.selects.select

29+import java.io.IOException

30+import kotlin.random.Random

31+

32+/**

33+ * Owns the single long-lived `GET /event` SSE subscription and exposes it as a hot

34+ * [SharedFlow] of [BusEvent]. The connection is opened when the first collector

35+ * subscribes (WhileSubscribed) and reconnects with backoff on drop.

36+ *

37+ * Ordering contract: callers that send a prompt must already be collecting [events]

38+ * (directly or via the repository) so early `message.part.updated` deltas aren't missed.

39+ */

40+@OptIn(kotlinx.coroutines.ExperimentalCoroutinesApi::class)

41+open class EventStreamClient(

42+ private val client: HttpClient,

43+ private val scope: CoroutineScope,

44+ private val idleTimeoutMs: Long = NetworkConfig.sseIdleTimeoutMs,

45+ private val initialBackoffMs: Long = NetworkConfig.sseInitialBackoffMs,

46+ private val maxBackoffMs: Long = NetworkConfig.sseMaxBackoffMs,

47+ private val bufferCapacity: Int = NetworkConfig.sseEventBufferCapacity,

48+) {

49+ protected constructor() : this(

50+ HttpClient(io.ktor.client.engine.okhttp.OkHttp) {},

51+ CoroutineScope(EmptyCoroutineContext),

52+ )

53+ enum class ConnectionState { Disconnected, Connecting, Connected, Failed, AuthFailed }

54+

55+ private val _state = MutableStateFlow(ConnectionState.Disconnected)

56+ open val state: StateFlow<ConnectionState> = _state.asStateFlow()

57+

58+ /** Number of reconnect attempts made since the last successful [ConnectionState.Connected]

59+ * period. Incremented each time the stream loop begins a new connection attempt after a

60+ * drop, and reset to 0 on a successful connect. Surfaced so the UI can show "Reconnecting

61+ * (attempt N)…" during a sustained outage, giving the user confidence the system is

62+ * actively retrying rather than stuck. */

63+ private val _reconnectAttempts = MutableStateFlow(0)

64+ open val reconnectAttempts: StateFlow<Int> = _reconnectAttempts.asStateFlow()

65+

66+ open val events: SharedFlow<BusEvent> by lazy {

67+ stream()

68+ .buffer(bufferCapacity, BufferOverflow.DROP_OLDEST)

69+ .shareIn(

70+ scope = scope,

71+ started = SharingStarted.WhileSubscribed(stopTimeoutMillis = NetworkConfig.stateFlowSubscriptionTimeoutMs),

72+ replay = 0,

73+ )

74+ }

75+

76+ /** Conflated channel used to cut the reconnect backoff short when network returns. */

77+ private val reconnectSignal = Channel<Unit>(Channel.CONFLATED)

78+

79+ /** Classifies a non-retryable SSE failure so the UI can show the right recovery hint:

80+ * an auth failure (401/403) reads "check credentials", while other 4xx (400/404/405…)

81+ * reads "check the server URL and version". Returns null for transient/retryable errors.

82+ * SSL/TLS and certificate-pinning failures are permanent (a changed/rotated cert won't

83+ * heal on retry) and are classified as Other so the user sees "check the server URL and

84+ * version / cert pin" instead of an infinite "Reconnecting…" spinner. */

85+ private enum class SseFailureKind { Auth, Other }

86+

87+ private fun classifyNonRetryableSseFailure(e: Throwable): SseFailureKind? =

88+ generateSequence(e as Throwable?) { it.cause.takeIf { c -> c !== it } }

89+ .take(16)

90+ .mapNotNull { t ->

91+ when (t) {

92+ is io.ktor.client.plugins.sse.SSEClientException -> t.response?.status?.value

93+ is io.ktor.client.plugins.ClientRequestException -> t.response.status.value

94+ // A TLS handshake / cert-pinning / SSL peer unverified failure happens

95+ // before any HTTP response, so it carries no status code. It is never

96+ // transient (the server's cert must change), so classify it directly

97+ // instead of falling through to the null (retryable) default — otherwise

98+ // the client retries forever with backoff against an unreachable pinned

99+ // server, showing "Reconnecting…" with no hint that the failure is fixed.

100+ is javax.net.ssl.SSLException -> -1

101+ is java.security.cert.CertificateException -> -1

102+ else -> null

103+ }

104+ }

105+ // Non-408/429 4xx = permanent; 408 and 429 stay in the transient retry path.

106+ // The -1 sentinel (SSL/cert) is also permanent → Other.

107+ .map { code -> when {

108+ code == -1 -> SseFailureKind.Other

109+ code in 400..499 && code != 408 && code != 429 ->

110+ if (code == 401 || code == 403) SseFailureKind.Auth else SseFailureKind.Other

111+ else -> null

112+ } }

113+ .firstOrNull { it != null }

114+

115+ /** Request an immediate reconnect, skipping any in-progress backoff. */

116+ open fun triggerReconnect() { reconnectSignal.trySend(Unit) }

117+

118+ /**

119+ * Read SSE events from [events], racing each read against an idle-timeout watchdog.

120+ * Throws [IOException] on idle timeout so the outer reconnect loop fires; breaks on

121+ * clean stream close or scope cancellation.

122+ *

123+ * If the idle watchdog tripped because a [triggerReconnect] signal was consumed

124+ * (rather than a genuine idle timeout), [onReconnectConsumed] is invoked so the outer

125+ * reconnect loop can reconnect immediately instead of waiting out the backoff — the

126+ * signal is already consumed, so the backoff `select` couldn't be cut short.

127+ */

128+ private suspend fun readSseEvents(

129+ scope: CoroutineScope,

130+ events: kotlinx.coroutines.channels.ReceiveChannel<ServerSentEvent>,

131+ onReconnectConsumed: () -> Unit,

132+ send: suspend (BusEvent) -> Unit,

133+ ) {

134+ while (scope.isActive) {

135+ // The OkHttp engine has readTimeout=0 (the SSE stream must never time out on

136+ // read), so a socket the peer never closed would otherwise hang until OS TCP

137+ // keepalive kicks in — minutes to hours on stock Linux. If nothing arrives

138+ // within the idle timeout, treat the connection as half-open and drop it.

139+ var consumedReconnectSignal = false

140+ val result: ChannelResult<ServerSentEvent>? = select {

141+ events.onReceiveCatching { it }

142+ onTimeout(idleTimeoutMs) { null }

143+ // A triggerReconnect() issued while a read is active must interrupt it now:

144+ // return the same null sentinel as the idle timeout so a half-open socket

145+ // (no TCP RST) is dropped and reconnected promptly instead of waiting out

146+ // idleTimeoutMs (~90s).

147+ reconnectSignal.onReceive { consumedReconnectSignal = true; null }

148+ }

149+ if (result == null) {

150+ if (consumedReconnectSignal) onReconnectConsumed()

151+ throw IOException("SSE read dropped (idle timeout or reconnect requested), reconnecting")

152+ }

153+ val sse = result.getOrNull()

154+ if (sse == null) {

155+ // The producer channel is closed. A non-null cause means `incoming`

156+ // failed (e.g. a socket reset bridged from the producer) — rethrow it so

157+ // the outer loop logs and retries with backoff. A clean close (null

158+ // cause) just ends this attempt and lets the loop reconnect.

159+ result.exceptionOrNull()?.let { throw it }

160+ break

161+ }

162+ val data = sse.data

163+ if (data == null) {

164+ // A comment or keep-alive event (no data field) resets the idle watchdog

165+ // — servers send `: ping` comments to keep the connection alive through

166+ // proxies. Without this, a server that only sends comments would still

167+ // hit the idle timeout and reconnect unnecessarily.

168+ continue

169+ }

170+ val event = try {

171+ OpencodeJson.decodeFromString(BusEvent.serializer(), data)

172+ } catch (e: kotlinx.serialization.SerializationException) {

173+ Log.d("EventStream", "Skipping unparseable SSE event", e)

174+ continue

175+ }

176+ if (_state.value != ConnectionState.Connected) {

177+ _state.value = ConnectionState.Connected

178+ }

179+ send(event)

180+ }

181+ }

182+

183+ private fun stream(): Flow<BusEvent> = channelFlow {

184+ val scope = this

185+ // Drain any stale reconnect signal from a previous collection cycle so it

186+ // doesn't spuriously reset the backoff on startup (WhileSubscribed may have

187+ // stopped the upstream while triggerReconnect() queued a signal).

188+ while (reconnectSignal.tryReceive().isSuccess) { /* drain */ }

189+ var backoffMs = initialBackoffMs

190+ // Tracks whether this is the first iteration (the initial connect) vs a reconnect,

191+ // so the attempt counter is only incremented on reconnects (not the first connect).

192+ var firstAttempt = true

193+ while (isActive) {

194+ // Increment the reconnect-attempt counter on every iteration except the initial

195+ // connect, so the UI can show "Reconnecting (attempt N)…". Reset to 0 on success.

196+ if (firstAttempt) firstAttempt = false else _reconnectAttempts.value++

197+ _state.value = ConnectionState.Connecting

198+ // Set by readSseEvents when a triggerReconnect() signal interrupted an active

199+ // read. The signal is consumed to drop the socket, so the backoff select below

200+ // can't also see it — without this flag the reconnect would wait the full

201+ // backoff despite the caller asking for an immediate reconnect (network

202+ // handoff, manual refresh, ...).

203+ var reconnectConsumedDuringRead = false

204+ try {

205+ // The SSE stream is long-lived: disable the request-level and socket

206+ // timeouts (the client default is 60s for REST) in the request config

207+ // so the connection isn't killed mid-stream. The idle-timeout watchdog

208+ // below handles half-open connections instead.

209+ client.sse(

210+ "event",

211+ request = {

212+ timeout {

213+ requestTimeoutMillis = Long.MAX_VALUE

214+ // Disable the socket (read) timeout entirely for the SSE stream.

215+ // A finite value would kill the connection whenever the server

216+ // is quiet for longer than that (idle sessions, slow agent runs),

217+ // causing a reconnect storm. Half-open detection is handled by

218+ // the idle-timeout watchdog below plus OkHttp's pingInterval on

219+ // HTTP/2 connections.

220+ socketTimeoutMillis = Long.MAX_VALUE

221+ }

222+ },

223+ ) {

224+ // The SSE block is open — the connection is established. Mark as

225+ // Connected immediately so downstream re-seed logic fires even when

226+ // the server only sends keep-alive comments (no data events).

227+ if (_state.value != ConnectionState.Connected) {

228+ _state.value = ConnectionState.Connected

229+ }

230+ // Clear any stale reconnect signal from a triggerReconnect() call

231+ // made while the previous stream was healthy, so it doesn't suppress

232+ // the next legitimate backoff.

233+ while (reconnectSignal.tryReceive().isSuccess) { /* drain */ }

234+ // Bridge ktor's `incoming` flow to a channel so each element can be

235+ // raced against the idle-timeout watchdog via select. We collect it

236+ // ourselves instead of `incoming.produceIn(scope)`: produceIn launches

237+ // the collector as a child of this channelFlow, so when `incoming`

238+ // throws on an abnormal socket close — a TCP reset, i.e. the common

239+ // mobile case: Wi-Fi⇄cellular handoff, server or proxy RST — the child's

240+ // failure cancels the whole channelFlow and bypasses the retry `catch`

241+ // below. That killed reconnect outright and surfaced the IOException as

242+ // an uncaught crash through the (handler-less) shareIn scope. Collecting

243+ // into our own channel and closing it with the cause keeps the failure

244+ // local: readSseEvents sees the closed channel, rethrows the cause, and

245+ // the normal retry/backoff path handles it. (A clean EOF closes the

246+ // channel with no cause → readSseEvents breaks and reconnects as before.)

247+ val events = Channel<ServerSentEvent>(Channel.BUFFERED)

248+ val producer = scope.launch {

249+ try {

250+ incoming.collect { events.send(it) }

251+ events.close()

252+ } catch (c: CancellationException) {

253+ events.close(c)

254+ throw c

255+ } catch (t: Throwable) {

256+ // Deliver the failure via the channel rather than letting it

257+ // propagate up and cancel the parent channelFlow.

258+ events.close(t)

259+ }

260+ }

261+ // Reset the backoff only once real data actually arrives, not on

262+ // block entry: a server that accepts the connection then immediately

263+ // drops it would otherwise loop forever at the initial backoff and

264+ // never escalate the exponential ramp.

265+ var receivedAny = false

266+ try {

267+ readSseEvents(scope, events, { reconnectConsumedDuringRead = true }) {

268+ if (!receivedAny) {

269+ receivedAny = true

270+ backoffMs = initialBackoffMs

271+ // A genuine event confirms the connection is healthy, so reset

272+ // the reconnect-attempt counter for the next outage's count.

273+ _reconnectAttempts.value = 0

274+ }

275+ send(it)

276+ }

277+ } finally {

278+ producer.cancel()

279+ events.cancel()

280+ }

281+ }

282+ } catch (c: CancellationException) {

283+ _state.value = ConnectionState.Disconnected

284+ throw c

285+ } catch (e: Exception) {

286+ // If the scope was cancelled (e.g. connection close), the closed-client

287+ // exception is expected — don't log a spurious "stream error" warning.

288+ val failureKind = classifyNonRetryableSseFailure(e)

289+ if (failureKind != null) {

290+ // The server rejected the request with a non-retryable 4xx (bad

291+ // credentials, missing endpoint, ...) — retrying won't help. Log a

292+ // scrubbed summary (class + status) instead of the full exception, whose

293+ // message carries the request URL and may include auth or paths.

294+ Log.w("EventStream", "SSE non-retryable 4xx (${if (failureKind == SseFailureKind.Auth) "auth" else "endpoint"}), awaiting explicit reconnect: ${safeExceptionSummary(e)}")

295+ _state.value = if (failureKind == SseFailureKind.Auth) ConnectionState.AuthFailed else ConnectionState.Failed

296+ if (!isActive) {

297+ // Final teardown (last subscriber left) while a 4xx surfaced: end in

298+ // Disconnected like every other loop-exit path. Failed must stay

299+ // observable only while the flow is live/retrying, not after teardown.

300+ _state.value = ConnectionState.Disconnected

301+ break

302+ }

303+ // Don't complete the flow: a subscriber may fix the profile and call

304+ // triggerReconnect(). Suspend until an explicit reconnect signal

305+ // arrives (no backoff delay), then re-attempt the connection. This receive

306+ // is outside the try above, so reset state to Disconnected if the last

307+ // subscriber leaves (cancellation) while we're parked here — otherwise the

308+ // stream would be torn down with state stuck at Failed.

309+ try {

310+ reconnectSignal.receive()

311+ } catch (c: CancellationException) {

312+ _state.value = ConnectionState.Disconnected

313+ throw c

314+ }

315+ // Reset the reconnect-attempt counter: the user explicitly triggered this

316+ // reconnect (fixed credentials, manual refresh, ...), so it's a fresh

317+ // attempt — not a continuation of the pre-failure outage. Without this,

318+ // firstAttempt is already false and line 196 increments the counter on

319+ // every manual reconnect, growing "Reconnecting (attempt N)" unboundedly

320+ // across repeated 4xx → fix → retry cycles.

321+ _reconnectAttempts.value = 0

322+ continue

323+ } else if (isActive) {

324+ Log.w("EventStream", "SSE stream error, will retry: ${safeExceptionSummary(e)}")

325+ }

326+ }

327+ _state.value = ConnectionState.Disconnected

328+ if (!isActive) break

329+ // Wait for the backoff, but allow a reconnect signal to cut it short. When

330+ // readSseEvents consumed a triggerReconnect() signal to drop an active read,

331+ // the signal is already spent so the select below can't receive it — pass a

332+ // zero backoff in that case so the reconnect is immediate (the whole point of

333+ // triggerReconnect: network handoff, manual refresh, ...).

334+ val signaled = waitForBackoffOrSignal(reconnectConsumedDuringRead, backoffMs)

335+ backoffMs = if (signaled) initialBackoffMs else (backoffMs * 2).coerceAtMost(maxBackoffMs)

336+ }

337+ }

338+

339+ /** Suspend for the backoff unless [reconnectConsumedDuringRead] (immediate) or a new

340+ * [triggerReconnect] arrives during the wait. Returns true when the reconnect should

341+ * skip the backoff ramp (signal-driven), false when the full backoff elapsed. */

342+ private suspend fun waitForBackoffOrSignal(

343+ reconnectConsumedDuringRead: Boolean,

344+ backoffMs: Long,

345+ ): Boolean {

346+ if (reconnectConsumedDuringRead) return true

347+ var signaled = false

348+ val jitter = ((backoffMs * NetworkConfig.retryJitterFactor) * (Random.nextDouble() * 2 - 1)).toLong()

349+ // Floor the wait at half the initial backoff: symmetric jitter can otherwise pull a

350+ // small backoff down to 0ms, producing a sub-second reconnect storm right after a

351+ // triggerReconnect reset on a connect-RST loop. A non-zero floor preserves the

352+ // purpose of backoff (spacing retries) while still allowing jitter to shorten it.

353+ val minWait = (initialBackoffMs / 2).coerceAtLeast(1L)

354+ select {

355+ reconnectSignal.onReceive { signaled = true }

356+ onTimeout((backoffMs + jitter).coerceAtLeast(minWait)) { /* normal backoff elapsed */ }

357+ }

358+ return signaled

359+ }

360+}

app/src/main/java/soy/iko/opencode/data/network/HttpClientFactory.ktnew file+178

@@ -0,0 +1,178 @@

1+package soy.iko.opencode.data.network

2+

3+import soy.iko.opencode.data.model.ServerProfile

4+import io.ktor.client.HttpClient

5+import io.ktor.client.engine.okhttp.OkHttp

6+import io.ktor.client.plugins.HttpTimeout

7+import io.ktor.client.plugins.api.Send

8+import io.ktor.client.plugins.api.createClientPlugin

9+import io.ktor.client.plugins.auth.Auth

10+import io.ktor.client.plugins.auth.providers.BasicAuthCredentials

11+import io.ktor.client.plugins.auth.providers.basic

12+import io.ktor.client.plugins.contentnegotiation.ContentNegotiation

13+import io.ktor.client.plugins.defaultRequest

14+import io.ktor.client.plugins.sse.SSE

15+import io.ktor.http.HttpHeaders

16+import io.ktor.http.URLBuilder

17+import io.ktor.http.takeFrom

18+import io.ktor.serialization.kotlinx.json.json

19+import okhttp3.CertificatePinner

20+import okhttp3.HttpUrl.Companion.toHttpUrlOrNull

21+import java.util.concurrent.TimeUnit

22+

23+/**

24+ * Builds a Ktor client bound to a single [ServerProfile]. One client per active

25+ * profile: it carries the base URL, optional Basic auth, JSON negotiation, and the

26+ * SSE plugin used for `GET /event`.

27+ */

28+object HttpClientFactory {

29+

30+ fun create(profile: ServerProfile): HttpClient {

31+ val normalizedUrl = CertPinUtil.effectiveBaseUrl(profile)

32+ val isHttps = normalizedUrl.lowercase().startsWith("https://")

33+ // Parse the host with OkHttp's own parser (not java.net.URI, which rejects hosts OkHttp

34+ // accepts, e.g. underscores in "my_server.local"). If pinning is configured over HTTPS

35+ // but the host can't be parsed, fail closed: never build an unpinned client — that would

36+ // be a silent security downgrade for a user who opted into pinning.

37+ val pinHost = normalizedUrl.toHttpUrlOrNull()?.host

38+ val pins = CertPinUtil.parseCertPins(profile.certPin)

39+ if (pins.isNotEmpty() && isHttps && pinHost == null) {

40+ throw IllegalStateException(

41+ "Certificate pinning is configured but the server host could not be parsed from $normalizedUrl",

42+ )

43+ }

44+ // Fail closed for HTTP+auth with an unparseable host too: otherwise neither the HTTPS Auth

45+ // plugin nor the HTTP host-scoped header plugin is installed (the HTTP branch below is

46+ // gated on pinHost != null), so credentials would be configured but never transmitted —

47+ // hasAuth reads true in the UI while every request goes out unauthenticated. An unparseable

48+ // host generally can't connect anyway, but failing here surfaces a clear error instead of a

49+ // silent auth bypass.

50+ if (profile.hasAuth && !isHttps && pinHost == null) {

51+ throw IllegalStateException(

52+ "Auth is configured but the server host could not be parsed from $normalizedUrl",

53+ )

54+ }

55+

56+ return HttpClient(OkHttp) {

57+ expectSuccess = true

58+

59+ engine {

60+ config {

61+ // A normal read timeout for REST calls. The SSE stream overrides this

62+ // to infinite inside the sse {} request block (see EventStreamClient),

63+ // so the long-lived event connection is never killed mid-stream.

64+ readTimeout(NetworkConfig.readTimeoutSeconds, TimeUnit.SECONDS)

65+ connectTimeout(NetworkConfig.connectTimeoutSeconds, TimeUnit.SECONDS)

66+ retryOnConnectionFailure(true)

67+ pingInterval(NetworkConfig.pingIntervalSeconds, TimeUnit.SECONDS)

68+ // Pin the server certificate(s) when configured and connecting over TLS.

69+ // A malformed pin throws here (surfaced as a connection failure), which is

70+ // the right fail-closed behavior for a security control the user opted into.

71+ if (pins.isNotEmpty() && pinHost != null && isHttps) {

72+ certificatePinner(

73+ CertificatePinner.Builder().apply { pins.forEach { add(pinHost, it) } }.build(),

74+ )

75+ }

76+ }

77+ }

78+

79+ install(ContentNegotiation) {

80+ json(OpencodeJson)

81+ }

82+

83+ install(SSE)

84+

85+ // Request-level timeout for REST calls. The SSE stream overrides this to

86+ // infinite inside the sse {} request block (see EventStreamClient) so the

87+ // long-lived /event connection isn't killed after 60s. The engine's connect

88+ // timeout and the SSE idle-timeout watchdog handle stuck SSE connections.

89+ install(HttpTimeout) {

90+ requestTimeoutMillis = NetworkConfig.restRequestTimeoutMs

91+ }

92+

93+ if (profile.hasAuth) {

94+ if (isHttps) {

95+ install(Auth) {

96+ basic {

97+ credentials {

98+ BasicAuthCredentials(

99+ username = profile.username.orEmpty(),

100+ password = profile.password.orEmpty(),

101+ )

102+ }

103+ // Send eagerly so opencode doesn't need a 401 challenge round-trip, but

104+ // only to the configured host: a cross-host redirect must not carry the

105+ // credentials off-origin (the plugin would still answer a genuine 401 from

106+ // the real host reactively). The Auth plugin is only installed for HTTPS

107+ // profiles — over HTTP, even reactive credential sending would leak

108+ // passwords in cleartext, so we don't install it at all.

109+ sendWithoutRequest { request ->

110+ pinHost != null && request.url.host.equals(pinHost, ignoreCase = true)

111+ }

112+ }

113+ }

114+ // Defense in depth mirroring the HTTP branch below: sendWithoutRequest only gates

115+ // *eager* attachment on the outgoing request — it neither strips an Authorization

116+ // header that HttpRedirect copies from the original (configured-host) request onto

117+ // a cross-origin redirect target, nor stops the reactive Basic provider answering a

118+ // 401 from such a target. followRedirects is enabled by default, so re-check the

119+ // host on every physical send and remove the header whenever it isn't the pinned

120+ // host, guaranteeing credentials never leave the configured origin.

121+ install(

122+ createClientPlugin("HttpsBasicAuthHostScoped") {

123+ on(Send) { request ->

124+ if (pinHost == null || !request.url.host.equals(pinHost, ignoreCase = true)) {

125+ request.headers.remove(HttpHeaders.Authorization)

126+ }

127+ proceed(request)

128+ }

129+ },

130+ )

131+ } else if (pinHost != null) {

132+ // For HTTP profiles with auth, attach the Basic header proactively (the reactive

133+ // Auth plugin is skipped for non-HTTPS so a 401 can't silently re-send credentials

134+ // in cleartext), but scope it to the configured host and re-check on EVERY physical

135+ // send. Redirects matter: Ktor builds the redirect request by copying the original

136+ // headers, so an unconditional header would carry the cleartext credentials to a

137+ // cross-host redirect target. Setting it here (and stripping it off-host) mirrors

138+ // the HTTPS path's sendWithoutRequest host guard so credentials never go off-origin.

139+ val credentials = java.util.Base64.getEncoder().encodeToString(

140+ "${profile.username.orEmpty()}:${profile.password.orEmpty()}".toByteArray(),

141+ )

142+ install(

143+ createClientPlugin("HttpBasicAuthHostScoped") {

144+ on(Send) { request ->

145+ if (request.url.host.equals(pinHost, ignoreCase = true)) {

146+ request.headers[HttpHeaders.Authorization] = "Basic $credentials"

147+ } else {

148+ request.headers.remove(HttpHeaders.Authorization)

149+ }

150+ proceed(request)

151+ }

152+ },

153+ )

154+ }

155+ }

156+

157+ defaultRequest {

158+ url.takeFrom(URLBuilder().takeFrom(normalizedUrl))

159+ }

160+ }

161+ }

162+

163+ /** Ensure a scheme and a single trailing slash so relative paths resolve correctly.

164+ * Defaults to [https] when no scheme is given so credentials aren't accidentally

165+ * sent over cleartext. Users who need plain HTTP must type the scheme explicitly. */

166+ fun normalizeBaseUrl(raw: String): String {

167+ val trimmed = raw.trim()

168+ // Compare the scheme prefix case-insensitively (a lowercased copy) while

169+ // preserving the original casing of the rest of the URL in the output.

170+ val lowerTrimmed = trimmed.lowercase()

171+ val withScheme = if (lowerTrimmed.startsWith("http://") || lowerTrimmed.startsWith("https://")) {

172+ trimmed

173+ } else {

174+ "https://$trimmed"

175+ }

176+ return if (withScheme.endsWith("/")) withScheme else "$withScheme/"

177+ }

178+}

app/src/main/java/soy/iko/opencode/data/network/NetworkConfig.ktnew file+449

@@ -0,0 +1,449 @@

1+package soy.iko.opencode.data.network

2+

3+/**

4+ * Centralized tuning parameters for the network and presentation layers. Keeping these

5+ * in one place makes them easy to find and adjust without hunting through source files,

6+ * and makes the intent of each value explicit rather than a bare magic number.

7+ */

8+object NetworkConfig {

9+

10+ // --- OkHttp engine timeouts (HttpClientFactory) ---

11+

12+ /** Socket connect timeout for all HTTP calls, including the SSE handshake. */

13+ const val connectTimeoutSeconds = 30L

14+ /** Socket read timeout for ordinary REST calls. The SSE stream overrides this to INFINITE. */

15+ const val readTimeoutSeconds = 60L

16+ /** OkHttp WebSocket/interval ping, keeping the SSE socket alive through proxies. */

17+ const val pingIntervalSeconds = 20L

18+ /** Request-level timeout for REST calls (covers connect + headers + body). The SSE stream overrides this to INFINITE. */

19+ const val restRequestTimeoutMs = 60_000L

20+

21+ // --- REST retry (OpencodeApiClient.withRetry) ---

22+

23+ /** Maximum number of attempts for a retriable REST call. */

24+ const val retryMaxAttempts = 3

25+ /** Initial backoff delay; doubles on each successive failure (exponential backoff). */

26+ const val retryInitialDelayMs = 500L

27+ /** Cap on a single retry backoff delay, guarding against overflow at high attempt counts. */

28+ const val retryMaxDelayMs = 30_000L

29+ /** Jitter factor for retry backoff (0.2 = ±20% symmetric random jitter on each delay). */

30+ const val retryJitterFactor = 0.2

31+

32+ // --- SSE stream (EventStreamClient) ---

33+

34+ /** Initial reconnect backoff after an SSE stream drop; doubles up to [sseMaxBackoffMs]. */

35+ const val sseInitialBackoffMs = 500L

36+ /** Cap on the SSE reconnect backoff. */

37+ const val sseMaxBackoffMs = 10_000L

38+ /** Reconnect-attempt count at which the connection banner switches from "Reconnecting…"

39+ * to "Reconnecting (attempt N)…" — after a few retries the user benefits from seeing the

40+ * system is actively retrying rather than stuck. Below this the plain label is calmer. */

41+ const val sseReconnectAttemptLabelThreshold = 3

42+ /** Max gap between events before a silent/half-open SSE connection is dropped and reconnected. */

43+ const val sseIdleTimeoutMs = 90_000L

44+ /** Buffer capacity for the SSE events SharedFlow; prevents a slow subscriber stalling the read loop. */

45+ const val sseEventBufferCapacity = 64

46+

47+ // --- Connectivity monitor (AppContainer) ---

48+

49+ /** Grace period after a network is lost before reporting offline. Absorbs the transient

50+ * window during a Wi-Fi→cellular handoff where onLost(WiFi) fires before the replacement

51+ * network becomes active (cm.activeNetwork is briefly null), so a handoff doesn't flash

52+ * offline while a genuine loss (no active network after the grace) is still caught. */

53+ const val networkOfflineGraceMs = 2_000L

54+

55+ // --- Catalog cache (OpencodeApiClient) ---

56+

57+ /** How long cached catalog responses (providers/agents/commands) are considered fresh. */

58+ const val catalogCacheTtlMs = 60_000L

59+

60+ /** TTL for files written to the cache dir to hand to external apps via FileProvider

61+ * (open-externally). Stale files past this age are pruned on the next open so repeated

62+ * opens of large files don't accumulate unbounded. 24h covers a typical session. */

63+ const val externalCacheTtlMs = 24L * 60 * 60 * 1000

64+

65+ // --- Session list (SessionListViewModel) ---

66+

67+ /** Max sessions to fetch previews for in one batch. */

68+ const val maxPreviewSessions = 50

69+ /** Initial render window for the session list — the number of rows composed before the

70+ * user scrolls to reveal more. Grows by [sessionListPageStep] as the user nears the

71+ * bottom, bounding the sort/filter work on a huge list while keeping scrolling seamless. */

72+ const val sessionListInitialPage = 60

73+ /** How many additional rows to reveal when the session list render window is exhausted. */

74+ const val sessionListPageStep = 60

75+ /** Initial render window for the file-browser directory listing. A huge directory

76+ * (10k+ entries) sorts/filters in full on each recomposition; windowing the render

77+ * bounds the composed-row count while the sort still runs over the full list (so the

78+ * order is correct, just the visible slice is capped). Grows as the user scrolls. */

79+ const val fileListInitialPage = 100

80+ /** How many additional file rows to reveal when the render window is exhausted. */

81+ const val fileListPageStep = 100

82+ /** Max concurrent preview fetches (prevents flooding the server with parallel requests). */

83+ const val maxConcurrentPreviews = 8

84+ /** Max characters of a session's last message to keep as a list preview. */

85+ const val previewTextMaxLength = 200

86+ /** Debounce delay before fetching a session preview after an SSE update, so a burst

87+ * of SessionUpdated events (e.g. during active streaming) coalesces into one fetch

88+ * instead of launching one per event (each downloading the full message history). */

89+ const val previewDebounceMs = 500L

90+ /** Debounce for applying SessionUpdated SSE events to the session list state. During

91+ * active streaming the server emits these frequently; without debouncing each one

92+ * triggers a full list filter + sort + recomposition, causing scroll jank. */

93+ const val sessionUpdateDebounceMs = 300L

94+

95+ // --- Global search (GlobalSearchViewModel) ---

96+

97+ /** Max sessions whose message history is scanned in one global-search pass. Global

98+ * search downloads each session's messages, so this bounds the work; if there are more

99+ * sessions, the result set notes that the search was truncated. */

100+ const val maxSearchSessions = 50

101+ /** Debounce before a global search fires, so typing doesn't launch a fetch per keystroke. */

102+ const val searchDebounceMs = 350L

103+ /** Minimum query length before a global search runs (shorter queries match too much). */

104+ const val minSearchQueryLength = 2

105+ /** Characters of context to show around a global-search match. */

106+ const val searchSnippetLength = 160

107+

108+ // --- Message cache (MessageCacheStore) ---

109+

110+ /** Minimum interval between on-disk writes of a session's message snapshot, so a fast

111+ * token stream doesn't hammer the disk. The cache only needs to be recent enough for an

112+ * instant/offline first paint; the network corrects it on the next open. */

113+ const val messageCacheWriteThrottleMs = 2_000L

114+

115+ /** Max entries in MessageCacheStore's tombstone set. Tombstones only need to survive long

116+ * enough to block a racing teardown flush (which resolves within seconds of deletion), so

117+ * entries from long-ago deletions are useless. Capping prevents unbounded growth across

118+ * many session deletions over the app's lifetime; when exceeded the set is cleared wholesale

119+ * (coarse but safe — no racing flush can still be alive for a session deleted sessions ago). */

120+ const val maxMessageCacheTombstones = 128

121+

122+ /** Grace period before a deferred session delete actually fires, during which an

123+ * Undo snackbar lets the user cancel it. */

124+ const val undoDeleteDelayMs = 5_000L

125+

126+ /** Grace period before a deferred server-profile delete actually fires, during which

127+ * an Undo snackbar lets the user cancel it. Same UX rationale as [undoDeleteDelayMs]. */

128+ const val undoServerDeleteDelayMs = 5_000L

129+

130+ /** Grace period before a deferred crash-report delete actually fires, during which

131+ * an Undo snackbar lets the user cancel it. */

132+ const val undoReportDeleteDelayMs = 5_000L

133+

134+ // --- In-memory message store (SessionRepository.MessageStore) ---

135+

136+ /** Max messages to keep in memory per observed session; oldest are evicted beyond this. */

137+ const val maxInMemoryMessages = 500

138+

139+ // --- File viewer (FileViewScreen) ---

140+

141+ /** Cap on how many lines the raw viewer renders and searches. A multi-megabyte file is

142+ * split once (not twice) into this many lines at most, so it can't hold two full line

143+ * lists in memory or stall the LazyColumn; beyond the cap a truncation banner is shown. */

144+ const val maxRenderedFileLines = 5000

145+

146+ // --- File browser (FileBrowserViewModel) ---

147+

148+ /** Debounce delay before firing a file-search request after the user stops typing. */

149+ const val fileSearchDebounceMs = 250L

150+

151+ /** Debounce delay before re-running the in-conversation message search after the user

152+ * stops typing. The search walks every part of every message (including stringifying

153+ * tool state), so debouncing avoids jank on long conversations. The filter itself runs

154+ * off the main thread; this delay coalesces rapid keystrokes. */

155+ const val chatSearchDebounceMs = 200L

156+

157+ // --- Attachments (chat composer) ---

158+

159+ /** Max size of a single attachment (image/file) before it's rejected. Base64 inflates

160+ * the payload ~33%, and the whole prompt body is held in memory, so cap generously but

161+ * finitely to avoid OOM / oversized requests. */

162+ const val maxAttachmentBytes = 10L * 1024 * 1024

163+

164+ /** Max number of attachments staged for one prompt, to bound memory and request size. */

165+ const val maxAttachments = 8

166+

167+ /** Max cumulative size of all attachments staged for one prompt. The per-file

168+ * [maxAttachmentBytes] cap alone allows [maxAttachments] max-size files (~80MB raw,

169+ * ~106MB as base64) to pile up in memory and be re-serialized on every add/remove and

170+ * again when the request body is built — a realistic OOM. This bounds the whole set. */

171+ const val maxTotalAttachmentBytes = 25L * 1024 * 1024

172+

173+ // --- StateFlow sharing (WhileSubscribed) ---

174+

175+ /** Grace period before a cold StateFlow is stopped after its last subscriber leaves. */

176+ const val stateFlowSubscriptionTimeoutMs = 5_000L

177+

178+ /** Maximum time a notification action BroadcastReceiver may hold its goAsync()

179+ * PendingResult open. The system ANRs a receiver that doesn't call finish() within

180+ * ~10s, so this must stay below that; a slow permission-respond retry (withRetry

181+ * exponential backoff up to ~90s) or a blocked outbox enqueue could otherwise blow

182+ * past the window. The watchdog finishes the PendingResult at this deadline so the

183+ * receiver never ANRs; the underlying network call keeps running on the app scope. */

184+ const val notificationReceiverTimeoutMs = 8_000L

185+

186+ // --- Draft persistence (ChatViewModel) ---

187+

188+ /** Debounce delay before persisting a draft to disk after the user stops typing. */

189+ const val draftDebounceMs = 500L

190+

191+ /** Maximum characters allowed in the chat input field. A generous cap that prevents

192+ * a huge paste from stalling the UI (the field would otherwise buffer and lay out

193+ * an unbounded string) while leaving plenty of room for long prompts. */

194+ const val maxDraftLengthChars = 32_000

195+

196+ /** Show the "remaining characters" supportingText under the chat input once the

197+ * draft length crosses this fraction of [maxDraftLengthChars], so the cap is

198+ * visible before it silently kicks in but doesn't clutter a normal short prompt. */

199+ const val draftCountdownThresholdFraction = 0.8f

200+

201+ /** Maximum characters allowed in a session title (rename dialog). Prevents the

202+ * server from rejecting an overly long title and keeps list rows readable. */

203+ const val maxSessionTitleChars = 200

204+

205+ // --- Profile store (ServerEditViewModel) ---

206+

207+ /** Timeout for loading a profile from DataStore before giving up. */

208+ const val profileLoadTimeoutMs = 5_000L

209+

210+ /** Timeout for a credential test (probe) before giving up, so a hung/unresponsive server

211+ * doesn't leave the "Testing…" spinner spinning indefinitely. */

212+ const val testCredentialsTimeoutMs = 15_000L

213+

214+ // --- SSE stream (EventStreamClient, AppContainer) ---

215+

216+ /** Delay before retrying the message-activity observer after a failure. */

217+ const val observerRetryDelayMs = 5_000L

218+ /** Debounce before the run foreground-service is started/stopped in response to

219+ * run-activity changes. A run that starts and then fails/idles almost immediately

220+ * would otherwise dispatch startForegroundService() then stopService() back-to-back;

221+ * if the stop wins the race before startForeground() runs, Android raises the

222+ * "did not then call startForeground()" crash. Debouncing collapses that window.

223+ * Also serves as a minimum-run-duration gate: a run shorter than this (a quick abort,

224+ * a one-token reply) clears [anyRunActive] before the FGS ever posts, so the shade

225+ * stays clean of non-dismissable notifications for trivially short runs. The Doze-

226+ * resilience benefit only matters for long runs, so a few seconds of gate preserves

227+ * the core benefit. */

228+ const val runForegroundDebounceMs = 3_000L

229+

230+ // --- Markdown rendering (MarkdownText) ---

231+

232+ /** Throttle delay to coalesce streaming tokens into one re-parse. The markdown

233+ * library re-parses the full AST on every content change, so during a long streaming

234+ * response this is O(n²) work. 50ms (~20fps) is smooth for progressively appearing

235+ * text while cutting parse work ~3x versus a per-frame (16ms) throttle. */

236+ const val streamingThrottleMs = 50L

237+

238+ // --- Snackbar one-shot events (ViewModels) ---

239+

240+ /** Buffer capacity for transient error SharedFlows that drive snackbars. */

241+ const val snackbarEventBufferCapacity = 16

242+

243+ /** How long the chat top-bar refresh icon stays in its "refreshing" spinner state

244+ * after a tap, giving immediate feedback that the refresh was triggered even when

245+ * the connection state is already Connected (so the ConnectionBanner doesn't change). */

246+ const val refreshFeedbackMs = 1_200L

247+

248+ // --- UI layout constants ---

249+

250+ /** Minimum window width (dp) for two-pane layout on tablets / unfolded foldables. */

251+ const val twoPaneWidthThresholdDp = 840

252+ /** Maximum width fraction a user message bubble can occupy (keeps it readable). */

253+ const val userBubbleWidthFraction = 0.85f

254+ /** Minimum number of options in a picker sheet (model/agent/command) before its search

255+ * field auto-focuses and raises the keyboard on open. A tiny catalog is faster to scan by

256+ * eye, so popping the keyboard for it is just friction. */

257+ const val pickerSearchAutofocusThreshold = 8

258+

259+ /** Minimum number of saved server profiles before the server list shows its search/filter

260+ * field. A typical user has one or two servers, where scanning by eye beats typing; power

261+ * users juggling many profiles get the filter once it earns its space. */

262+ const val serverListSearchThreshold = 5

263+

264+ /** Minimum number of crash reports before the diagnostics list shows its search field. */

265+ const val diagnosticsSearchThreshold = 8

266+

267+ /** Initial render window for the diagnostics crash-report list — the number of rows

268+ * composed before the user scrolls to reveal more. Bounds composition work on a device

269+ * that has accumulated many crash reports. Grows by [diagnosticsListPageStep] as the

270+ * user nears the bottom. */

271+ const val diagnosticsListInitialPage = 60

272+ /** How many additional crash-report rows to reveal when the render window is exhausted. */

273+ const val diagnosticsListPageStep = 60

274+

275+ /** Minimum number of sessions in the usage report before the per-session list shows its

276+ * filter field. A short history is faster to scan than type into. */

277+ const val usageSessionSearchThreshold = 8

278+

279+ /** Minimum number of sessions before the session list shows its search/filter field.

280+ * Matches the sibling screens' convention: a short list is faster to scan by eye than

281+ * type into, so the field earns its vertical space only once the list grows. */

282+ const val sessionListSearchThreshold = 5

283+ /** Extra bottom content padding (dp) for the chat message list, reserving room for the

284+ * jump-to-latest FAB so it never floats over the last message. */

285+ const val chatListFabInsetDp = 80

286+

287+ /** Extra bottom content padding (dp) for single-pane list screens that host a FAB

288+ * (session list, server list, MCP), reserving room so the FAB never floats over the

289+ * last row. Unified across screens so the inset doesn't drift (the session list

290+ * previously hardcoded 96dp while the chat list used [chatListFabInsetDp]). */

291+ const val listFabInsetDp = 96

292+ /** Left pane weight in the two-pane layout (session list). */

293+ const val twoPaneLeftWeight = 0.38f

294+ /** Right pane weight in the two-pane layout (chat detail). */

295+ const val twoPaneRightWeight = 0.62f

296+

297+ /** Maximum width (dp) for the left (session-list) pane in the two-pane layout. On a wide

298+ * tablet the list pane would otherwise stretch too wide for a readable row density; capping

299+ * it keeps the list compact and gives the chat detail pane the remaining space. */

300+ const val twoPaneLeftMaxWidthDp = 460

301+

302+ /** Minimum window width (dp) at which a NavigationRail is shown alongside the

303+ * two-pane layout for top-level destination discoverability on large screens. Sits below

304+ * [twoPaneWidthThresholdDp] (M3's WindowWidthSizeClass.Medium breakpoint ~600dp) so a

305+ * tablet or landscape phone gets the rail while staying single-pane until 840dp, where the

306+ * two-pane master/detail split takes over. */

307+ const val navigationRailThresholdDp = 600

308+

309+ /** Maximum width (dp) for the chat message list on large screens. On a tablet or

310+ * unfolded foldable, full-width message bubbles stretch edge-to-edge, hurting

311+ * readability — capping and centering the list (like Gmail/Telegram on tablets)

312+ * keeps line lengths comfortable. Applied only above [twoPaneWidthThresholdDp]. */

313+ const val chatContentMaxWidthDp = 800

314+

315+ /** Maximum width (dp) for a single-pane list/form screen on large screens (Diagnostics,

316+ * MCP, Usage, Global Search, File Browser). Mirrors [chatContentMaxWidthDp]'s rationale

317+ * at a tighter width suited to dense list rows and form fields. Settings and ServerEdit

318+ * use 600dp directly; this constant centralizes the same value for the screens that

319+ * previously stretched edge-to-edge on tablets. */

320+ const val listContentMaxWidthDp = 600

321+

322+ /** Maximum width (dp) for the full-screen chat composer dialog on large screens, so

323+ * the editor doesn't stretch edge-to-edge on a tablet (matching [chatContentMaxWidthDp]'s

324+ * readability rationale for the message list). */

325+ const val composerDialogMaxWidthDp = 800

326+

327+ /** Maximum height (dp) for a modal bottom sheet's list area. Resolved against the screen

328+ * (not the partial sheet) so a sheet that starts fully expanded shows a predictable list

329+ * height regardless of the sheet's drag position. */

330+ const val pickerSheetMaxHeightDp = 560

331+

332+ /** Maximum inline height (dp) for an image attachment in the chat list. A tall image

333+ * caps at this so it doesn't dominate the bubble; tapping opens the fullscreen viewer. */

334+ const val inlineImageMaxHeightDp = 320

335+

336+ /** Minimum inline height (dp) reserved for an image placeholder (loading/error/resolving),

337+ * so the layout doesn't jump when the load completes and the image's intrinsic size is known. */

338+ const val inlineImageMinHeightDp = 120

339+

340+ /** Lines of a code fence rendered before collapsing to a head with a "show more" affordance.

341+ * Capped low for mobile: a 200-line block rendered at once can jank a low-end phone, so the

342+ * initial render is bounded and a "show more" reveals the rest in place. */

343+ const val collapsedCodeLineThreshold = 80

344+

345+ /** Lines of a unified diff rendered before collapsing to a head with a "show more" affordance.

346+ * Same mobile-performance rationale as [collapsedCodeLineThreshold]. */

347+ const val collapsedDiffLineThreshold = 80

348+

349+ /** Lines of tool output rendered before collapsing to a head with a "show more" affordance. */

350+ const val toolOutputCollapsedLimitChars = 4000

351+

352+ /** Lines of tool output rendered before collapsing to a head with a "show more" affordance.

353+ * A line-based threshold (rather than the char-based [toolOutputCollapsedLimitChars]) keeps

354+ * the collapsed preview a predictable height on mobile — a 4000-char block of short lines

355+ * can be 60+ lines and fill the whole screen, defeating the purpose of collapsing. The

356+ * char cap still applies as a hard upper bound; this line cap kicks in first for typical

357+ * multi-line output. */

358+ const val toolOutputCollapsedLimitLines = 30

359+

360+ /** Tool input (pretty-printed JSON) shorter than this many lines is shown expanded by

361+ * default — for tools like bash/write/edit the command is the most important info and

362+ * hiding it behind a tap inverts the priority. Longer inputs stay collapsed to avoid

363+ * dominating the bubble. */

364+ const val toolInputAutoExpandLineThreshold = 10

365+

366+ /** Tool durations below this many ms are hidden from the tool-name row (sub-second runs

367+ * are instant and the ms figure is noise). Set to 1000 to hide all sub-second durations,

368+ * or 0 to always show. */

369+ const val toolDurationHideBelowMs = 1_000L

370+

371+ /** Characters of tool output included in a shared/exported transcript before truncation. */

372+ const val exportToolOutputLimitChars = 2000

373+

374+ /** Maximum zoom factor applied by pinch or double-tap in the fullscreen image viewer. */

375+ const val imageViewerMaxZoom = 5f

376+

377+ /** Zoom factor a double-tap jumps to when starting from 1× in the fullscreen image viewer. */

378+ const val imageViewerDoubleTapZoom = 2.5f

379+

380+ /** Duration (ms) of the animated double-tap zoom transition in the fullscreen image viewer. */

381+ const val imageViewerZoomAnimMs = 220

382+

383+ /** Vertical drag distance (px) in the fullscreen image viewer that triggers swipe-to-dismiss. */

384+ const val imageViewerSwipeDismissThreshold = 200f

385+

386+ /** Blink period (ms) of the streaming caret at the tail of a live assistant reply. */

387+ const val streamingCaretPeriodMs = 500

388+

389+ /** Target maximum length (chars) of a single TTS chunk. Android's TextToSpeech enforces a

390+ * hard limit (getMaxSpeechInputLength, ~4000 chars) — this is a tighter cap so pause/

391+ * resume restarts at a finer granularity. Without it, a pause mid-chunk restarts the

392+ * whole chunk from its start; smaller chunks mean less replay on resume. Sentence

393+ * boundaries are still preferred, so short sentences pack up to this cap. */

394+ const val ttsChunkTargetMaxChars = 200

395+

396+ /** Auto-reject a tool-permission prompt after this many ms if the user hasn't responded,

397+ * so a forgotten prompt doesn't block the run indefinitely. The foreground service keeps

398+ * the process alive, so without a timeout a prompt that the user walked away from holds

399+ * the run open forever. The timeout is long (10 minutes) so a deliberate pause to read

400+ * the prompt doesn't trip it; a reminder toast-style line appears in the dialog after

401+ * [permissionReminderThresholdMs] to surface that the run is waiting. Set to 0 to disable. */

402+ const val permissionAutoRejectMs = 10L * 60 * 1000

403+

404+ /** Show a "still waiting" reminder in the permission dialog after this many ms. */

405+ const val permissionReminderThresholdMs = 60L * 1000

406+

407+ /** Duration (ms) the copy button shows its checkmark confirmation before reverting. */

408+ const val copyFeedbackMs = 1200

409+

410+ /** Gutter width (dp) for each side (old/new) of a unified-diff line-number column. */

411+ const val diffGutterWidthDp = 36

412+

413+ /** Width (dp) of the +/- prefix column in a unified-diff row. */

414+ const val diffPrefixWidthDp = 16

415+

416+ /** Maximum width (dp) of a breadcrumb segment in the file browser (non-last segments). */

417+ const val breadcrumbSegmentMaxWidthDp = 120

418+

419+ /** Maximum width (dp) of the last (current) breadcrumb segment in the file browser. */

420+ const val breadcrumbLastSegmentMaxWidthDp = 220

421+

422+ /** Vertical scroll threshold beyond which the chat "scroll to top" FAB appears. */

423+ const val chatScrollToTopFabThreshold = 200

424+

425+ /** Maximum width (dp) for an attachment chip's filename text before it truncates. */

426+ const val attachmentChipNameMaxWidthDp = 120

427+

428+ /** Maximum height (dp) for the expanded todo-plan checklist in a message bubble. */

429+ const val todoPlanMaxHeightDp = 240

430+

431+ /** Fallback height (dp) for the connection banner when no text is available (e.g. exit fade). */

432+ const val connectionBannerFallbackHeightDp = 44

433+

434+ // --- Motion tokens (shared across screens) ---

435+

436+ /** Duration (ms) for horizontal slide push/pop nav transitions. M3 spec recommends 200ms

437+ * for medium-duration container transitions. */

438+ const val motionSlideDurationMs = 200

439+ /** Duration (ms) for fade in/out nav and content transitions. */

440+ const val motionFadeDurationMs = 180

441+

442+ // --- Font scaling ---

443+

444+ /** Upper bound on the *combined* app×OS font scale. The chat text-size preference

445+ * multiplies on top of the system font scale, so a user at a large system size and

446+ * a large app size can reach ~2× and break tight layouts. The provided app scale is

447+ * clamped so the product with the OS fontScale never exceeds this. */

448+ const val maxCombinedFontScale = 1.8f

449+}

app/src/main/java/soy/iko/opencode/data/network/OpencodeApiClient.ktnew file+575

@@ -0,0 +1,575 @@

1+package soy.iko.opencode.data.network

2+

3+import soy.iko.opencode.data.model.Agent

4+import soy.iko.opencode.data.model.Command

5+import soy.iko.opencode.data.model.CommandRequest

6+import soy.iko.opencode.data.model.CreateSessionRequest

7+import soy.iko.opencode.data.model.FileContent

8+import soy.iko.opencode.data.model.FileNode

9+import soy.iko.opencode.data.model.FileStatusEntry

10+import soy.iko.opencode.data.model.MessageWithParts

11+import soy.iko.opencode.data.model.ModelRef

12+import soy.iko.opencode.data.model.PathInfo

13+import soy.iko.opencode.data.model.FilePromptPart

14+import soy.iko.opencode.data.model.FindMatch

15+import soy.iko.opencode.data.model.PermissionReplyBody

16+import soy.iko.opencode.data.model.PermissionResponse

17+import soy.iko.opencode.data.model.Project

18+import soy.iko.opencode.data.model.PromptPart

19+import soy.iko.opencode.data.model.PromptRequest

20+import soy.iko.opencode.data.model.ProvidersResponse

21+import soy.iko.opencode.data.model.RevertRequest

22+import soy.iko.opencode.data.model.Session

23+import soy.iko.opencode.data.model.ShellRequest

24+import soy.iko.opencode.data.model.SummarizeRequest

25+import soy.iko.opencode.data.model.SymbolResult

26+import soy.iko.opencode.data.model.TextPromptPart

27+import soy.iko.opencode.data.model.UpdateSessionRequest

28+import io.ktor.client.HttpClient

29+import io.ktor.client.call.body

30+import io.ktor.client.plugins.ClientRequestException

31+import io.ktor.client.plugins.ResponseException

32+import io.ktor.client.plugins.ServerResponseException

33+import io.ktor.client.request.delete

34+import io.ktor.client.request.get

35+import io.ktor.client.request.header

36+import io.ktor.client.request.parameter

37+import io.ktor.client.request.patch

38+import io.ktor.client.request.post

39+import io.ktor.client.request.setBody

40+import io.ktor.http.ContentType

41+import io.ktor.http.contentType

42+import kotlinx.coroutines.delay

43+import kotlinx.coroutines.sync.Mutex

44+import kotlinx.coroutines.sync.withLock

45+import kotlinx.serialization.json.buildJsonObject

46+import kotlinx.serialization.json.put

47+import kotlin.random.Random

48+import java.net.URLEncoder

49+

50+/**

51+ * Request/response wrapper over the opencode REST endpoints. The long-lived `/event`

52+ * SSE stream lives in [EventStreamClient]; everything else is here.

53+ */

54+open class OpencodeApiClient private constructor(

55+ private val client: HttpClient?,

56+ @Suppress("unused") private val testMode: Boolean,

57+) {

58+ constructor(client: HttpClient) : this(client, false)

59+ protected constructor() : this(null, true)

60+

61+ // --- Catalog cache (providers/agents/commands) ---

62+ // These change rarely, but the ChatViewModel re-fetches them on every creation.

63+ // A short-lived in-memory cache avoids redundant network calls when navigating

64+ // between sessions on the same server.

65+ private data class CachedEntry<T>(val value: T, val fetchedAt: Long)

66+ // Per-catalog mutexes so a slow fetch of one catalog doesn't block the others.

67+ // The fetch runs OUTSIDE the lock (holding it across the network call would serialize

68+ // all callers and stall invalidation). To keep that correct, each catalog carries a

69+ // generation counter, bumped under the mutex by its invalidateXCache(): a fetch captures

70+ // the generation before it starts and, when it completes, only writes its result back if

71+ // the generation is unchanged — so an invalidation that raced the in-flight fetch is not

72+ // defeated by the pre-invalidation result being stored afterwards.

73+ private val providersMutex = Mutex()

74+ private val agentsMutex = Mutex()

75+ private val commandsMutex = Mutex()

76+ private var cachedProviders: CachedEntry<ProvidersResponse>? = null

77+ private var cachedAgents: CachedEntry<List<Agent>>? = null

78+ private var cachedCommands: CachedEntry<List<Command>>? = null

79+ // Generation counters (guarded by the matching mutex above) for the invalidation-race guard.

80+ private var providersGeneration = 0

81+ private var agentsGeneration = 0

82+ private var commandsGeneration = 0

83+

84+ /** Lightweight connectivity check. Throws on non-2xx / network failure. */

85+ open suspend fun ping() {

86+ withRetry { client!!.get("global/health").body<String>() }

87+ }

88+

89+ open suspend fun listSessions(): List<Session> = withRetry {

90+ client!!.get("session").body()

91+ }

92+

93+ /**

94+ * Create a session, optionally in a specific worktree [directory]. The directory is a

95+ * query parameter (not a body field): the server records it on the session and resolves

96+ * it by session id thereafter, so follow-up calls (messages, commands, abort, …) don't

97+ * — and shouldn't — re-send it. A null/blank [directory] lets the server fall back to

98+ * its own launch cwd, preserving the pre-directory behavior.

99+ */

100+ open suspend fun createSession(title: String? = null, directory: String? = null): Session {

101+ // Generate the idempotency key before entering withRetry so every retry attempt

102+ // shares it. Without this, a POST that reached the server but whose response was

103+ // lost (reset/timeout) would be retried and create a second orphan session.

104+ val idempotencyKey = java.util.UUID.randomUUID().toString()

105+ val dir = directory?.takeIf { it.isNotBlank() }

106+ return withRetry {

107+ client!!.post("session") {

108+ contentType(ContentType.Application.Json)

109+ header("Idempotency-Key", idempotencyKey)

110+ if (dir != null) parameter("directory", dir)

111+ setBody(CreateSessionRequest(title = title))

112+ }.body()

113+ }

114+ }

115+

116+ /** List the projects (worktree roots) the server knows about, for the directory picker. */

117+ open suspend fun listProjects(): List<Project> = withRetry {

118+ client!!.get("project").body()

119+ }

120+

121+ /** The server's current path info; its [PathInfo.directory] is the default (cwd) a

122+ * session with no directory override runs in. */

123+ open suspend fun currentPath(): PathInfo = withRetry {

124+ client!!.get("path").body()

125+ }

126+

127+ open suspend fun updateSession(id: String, title: String): Session = withRetry {

128+ client!!.patch("session/${encode(id)}") {

129+ contentType(ContentType.Application.Json)

130+ setBody(UpdateSessionRequest(title = title))

131+ }.body()

132+ }

133+

134+ open suspend fun deleteSession(id: String) {

135+ try {

136+ withRetry { client!!.delete("session/${encode(id)}").body<String>() }

137+ } catch (t: ClientRequestException) {

138+ // A DELETE that succeeded but whose response was lost gets retried; the retry

139+ // hits an already-gone session and returns 404. Deleting a non-existent session

140+ // is effectively success, so swallow 404 rather than surfacing a spurious failure.

141+ if (t.response.status.value != 404) throw t

142+ }

143+ }

144+

145+ open suspend fun listMessages(sessionId: String): List<MessageWithParts> = withRetry {

146+ client!!.get("session/${encode(sessionId)}/message").body()

147+ }

148+

149+ open suspend fun sendPrompt(

150+ sessionId: String,

151+ text: String,

152+ attachments: List<FilePromptPart> = emptyList(),

153+ model: ModelRef? = null,

154+ agent: String? = null,

155+ // A caller-stable idempotency key. Callers that may re-invoke sendPrompt across

156+ // *separate* calls for the same logical message (the offline outbox, which re-sends

157+ // a message that stayed queued after an earlier flush failed) must pass a stable key

158+ // derived from the persistent message id — otherwise each attempt mints a fresh key

159+ // and a POST that reached the server but whose response was lost is re-created as a

160+ // duplicate run. When null, a fresh key is generated (correct for one-shot sends).

161+ idempotencyKey: String? = null,

162+ ): MessageWithParts {

163+ // Resolve the key *before* entering withRetry so all retry attempts share it. If the

164+ // key were generated inside withRetry, each attempt would get a fresh UUID and the

165+ // server couldn't deduplicate a request that reached it but whose response was lost.

166+ val resolvedKey = idempotencyKey ?: java.util.UUID.randomUUID().toString()

167+ // A text part is only included when there's actual text, so an image-only prompt

168+ // (attachments, empty text) doesn't send an empty text part. Attachments follow

169+ // the text so the model reads the instruction first.

170+ val parts = buildList<PromptPart> {

171+ if (text.isNotEmpty()) add(TextPromptPart(text))

172+ addAll(attachments)

173+ }

174+ return withRetry {

175+ client!!.post("session/${encode(sessionId)}/message") {

176+ contentType(ContentType.Application.Json)

177+ header("Idempotency-Key", resolvedKey)

178+ setBody(

179+ PromptRequest(

180+ parts = parts,

181+ model = model,

182+ agent = agent,

183+ ),

184+ )

185+ }.body()

186+ }

187+ }

188+

189+ /** Abort the active run in a session. NOT retried: a lost response followed by a

190+ * retry would POST abort again, and if a new run started in the gap the retry

191+ * would kill that *new* run. Unlike sendPrompt/runCommand/summarize there's no

192+ * Idempotency-Key the server could use to dedupe, so a single attempt is the

193+ * safe choice — the SSE stream reflects the actual run state regardless. */

194+ open suspend fun abort(sessionId: String) {

195+ withRetry(maxAttempts = 1) { client!!.post("session/${encode(sessionId)}/abort").body<String>() }

196+ }

197+

198+ /** Invoke a slash-command by name via `POST /session/:id/command`. */

199+ open suspend fun runCommand(

200+ sessionId: String,

201+ command: String,

202+ arguments: String = "",

203+ agent: String? = null,

204+ ): MessageWithParts {

205+ // Generate the idempotency key before entering withRetry so all retry

206+ // attempts share the same key, preventing duplicate command execution if

207+ // the server processed the request but the response was lost.

208+ val idempotencyKey = java.util.UUID.randomUUID().toString()

209+ return withRetry {

210+ client!!.post("session/${encode(sessionId)}/command") {

211+ contentType(ContentType.Application.Json)

212+ header("Idempotency-Key", idempotencyKey)

213+ setBody(CommandRequest(command = command, arguments = arguments, agent = agent))

214+ }.body()

215+ }

216+ }

217+

218+ /** Revert the session to just before [messageId] (optionally part [partId]); the

219+ * server hides everything after the checkpoint. Returns the updated session.

220+ *

221+ * NOT retried (single attempt), mirroring [abort]: a lost response followed by a retry

222+ * would POST revert again, and if a new run started in the gap the retry would hide

223+ * that new run's messages too (until the user noticed and called [unrevert]). There's

224+ * no Idempotency-Key the server could dedupe on, so a single attempt is the safe

225+ * choice — the SSE stream reflects the actual revert state regardless. */

226+ open suspend fun revert(sessionId: String, messageId: String, partId: String? = null): Session = withRetry(maxAttempts = 1) {

227+ client!!.post("session/${encode(sessionId)}/revert") {

228+ contentType(ContentType.Application.Json)

229+ setBody(RevertRequest(messageID = messageId, partID = partId))

230+ }.body()

231+ }

232+

233+ /** Undo the active revert checkpoint, restoring the hidden messages.

234+ *

235+ * Mint an Idempotency-Key *before* withRetry so a retried POST (first request reached

236+ * the server but its response was lost) doesn't trigger a second unrevert on a session

237+ * whose checkpoint was already cleared — the second attempt would hit a session with no

238+ * active revert and the server could return a non-retryable 4xx, surfacing a spurious

239+ * error for an operation that actually succeeded. The key lets the server dedupe. */

240+ open suspend fun unrevert(sessionId: String): Session {

241+ val idempotencyKey = java.util.UUID.randomUUID().toString()

242+ return withRetry {

243+ client!!.post("session/${encode(sessionId)}/unrevert") {

244+ header("Idempotency-Key", idempotencyKey)

245+ }.body()

246+ }

247+ }

248+

249+ /** Create a public share link for the session. Returns the session with [Session.share] set.

250+ * Mint the Idempotency-Key *before* withRetry so a retried POST (first request reached the

251+ * server but its response was lost) doesn't create a second, orphaned, still-valid share. */

252+ open suspend fun shareSession(sessionId: String): Session {

253+ val idempotencyKey = java.util.UUID.randomUUID().toString()

254+ return withRetry {

255+ client!!.post("session/${encode(sessionId)}/share") {

256+ header("Idempotency-Key", idempotencyKey)

257+ }.body()

258+ }

259+ }

260+

261+ /** Revoke the session's public share link. Returns the session with share cleared.

262+ * Like [deleteSession], a retried DELETE (first reached the server but the response was

263+ * lost) hits an already-unshared session and gets 404 — revoking a non-shared session is

264+ * effectively success, so swallow 404 rather than surfacing a spurious failure.

265+ * The fallback `GET` re-reads the current session state so the caller sees the cleared

266+ * share. If the session itself was deleted in the window between the DELETE-404 and the

267+ * GET (race with another client / a concurrent deleteSession), the GET also 404s —

268+ * swallow that too and surface a synthesized gone-session rather than an unexpected

269+ * ClientRequestException, mirroring deleteSession's contract. */

270+ open suspend fun unshareSession(sessionId: String): Session {

271+ return try {

272+ withRetry { client!!.delete("session/${encode(sessionId)}/share").body() }

273+ } catch (t: ClientRequestException) {

274+ if (t.response.status.value != 404) throw t

275+ try {

276+ withRetry { client!!.get("session/${encode(sessionId)}").body<Session>() }

277+ } catch (t2: ClientRequestException) {

278+ if (t2.response.status.value != 404) throw t2

279+ Session(id = sessionId, title = null, share = null)

280+ }

281+ }

282+ }

283+

284+ /** Ask the agent to summarize/compact the conversation to reclaim context. The compacted

285+ * summary streams back via SSE like any run; this just triggers it. */

286+ open suspend fun summarize(sessionId: String, model: ModelRef) {

287+ val idempotencyKey = java.util.UUID.randomUUID().toString()

288+ withRetry {

289+ client!!.post("session/${encode(sessionId)}/summarize") {

290+ contentType(ContentType.Application.Json)

291+ header("Idempotency-Key", idempotencyKey)

292+ setBody(SummarizeRequest(providerID = model.providerID, modelID = model.modelID))

293+ }.body<String>()

294+ }

295+ }

296+

297+ /** Analyze the project and (re)generate its AGENTS.md. The body is omitted so the server

298+ * assigns the message id and uses its default model; the run streams back via SSE. */

299+ open suspend fun initSession(sessionId: String) {

300+ val idempotencyKey = java.util.UUID.randomUUID().toString()

301+ withRetry {

302+ client!!.post("session/${encode(sessionId)}/init") {

303+ header("Idempotency-Key", idempotencyKey)

304+ }.body<String>()

305+ }

306+ }

307+

308+ /** Run a one-off shell [command] in the session's worktree. Output streams back via SSE.

309+ * [agent] scopes the run (the server requires it). */

310+ open suspend fun shell(sessionId: String, command: String, agent: String, model: ModelRef? = null) {

311+ val idempotencyKey = java.util.UUID.randomUUID().toString()

312+ withRetry {

313+ client!!.post("session/${encode(sessionId)}/shell") {

314+ contentType(ContentType.Application.Json)

315+ header("Idempotency-Key", idempotencyKey)

316+ setBody(ShellRequest(agent = agent, command = command, model = model))

317+ }.body<String>()

318+ }

319+ }

320+

321+ open suspend fun providers(): ProvidersResponse {

322+ val generation: Int

323+ providersMutex.withLock {

324+ val cached = cachedProviders

325+ if (cached != null && System.currentTimeMillis() - cached.fetchedAt < NetworkConfig.catalogCacheTtlMs) {

326+ return cached.value

327+ }

328+ generation = providersGeneration

329+ }

330+ // Fetch outside the lock so a slow/retrying request (and its backoff) can't stall other

331+ // callers or cache invalidation. Concurrent cold callers may double-fetch — acceptable

332+ // for a rarely-fetched catalog — and the last store wins.

333+ val value = withRetry { client!!.get("config/providers").body<ProvidersResponse>() }

334+ providersMutex.withLock {

335+ // FIX 15: skip the store if an invalidateProvidersCache() raced this fetch — the

336+ // result predates the invalidation and would otherwise resurrect stale data.

337+ if (providersGeneration == generation) cachedProviders = CachedEntry(value, System.currentTimeMillis())

338+ }

339+ return value

340+ }

341+

342+ /** The server's resolved configuration as a raw JSON object. Parsed loosely by callers

343+ * (e.g. the MCP viewer) so a schema addition on the server never breaks decoding. */

344+ open suspend fun config(): kotlinx.serialization.json.JsonObject = withRetry {

345+ client!!.get("config").body()

346+ }

347+

348+ /** Live MCP server status (`GET /mcp`): a map of server name to its status (connected,

349+ * available tools, any error). Decoded as a raw JSON object so a schema change on the

350+ * server never breaks the viewer. */

351+ open suspend fun mcpStatus(): kotlinx.serialization.json.JsonObject = withRetry {

352+ client!!.get("mcp").body()

353+ }

354+

355+ /** Dynamically register an MCP server (`POST /mcp`). [config] is the server's config object

356+ * (type/command-or-url/env…), sent as `{ "name": [name], "config": [config] }`. Mint the

357+ * Idempotency-Key *before* withRetry so a retried POST (first reached the server but the

358+ * response was lost) doesn't register a duplicate. */

359+ open suspend fun addMcp(name: String, config: kotlinx.serialization.json.JsonObject): kotlinx.serialization.json.JsonObject {

360+ val idempotencyKey = java.util.UUID.randomUUID().toString()

361+ return withRetry {

362+ client!!.post("mcp") {

363+ contentType(ContentType.Application.Json)

364+ header("Idempotency-Key", idempotencyKey)

365+ setBody(

366+ buildJsonObject {

367+ put("name", name)

368+ put("config", config)

369+ },

370+ )

371+ }.body()

372+ }

373+ }

374+

375+ open suspend fun agents(): List<Agent> {

376+ val generation: Int

377+ agentsMutex.withLock {

378+ val cached = cachedAgents

379+ if (cached != null && System.currentTimeMillis() - cached.fetchedAt < NetworkConfig.catalogCacheTtlMs) {

380+ return cached.value

381+ }

382+ generation = agentsGeneration

383+ }

384+ // Fetch outside the lock (see providers()): a slow/retrying request can't stall other

385+ // callers or cache invalidation; a rare concurrent double-fetch is acceptable here.

386+ val value = withRetry { client!!.get("agent").body<List<Agent>>() }

387+ agentsMutex.withLock {

388+ // FIX 15: skip the store if an invalidateAgentsCache() raced this fetch (see providers()).

389+ if (agentsGeneration == generation) cachedAgents = CachedEntry(value, System.currentTimeMillis())

390+ }

391+ return value

392+ }

393+

394+ open suspend fun commands(): List<Command> {

395+ val generation: Int

396+ commandsMutex.withLock {

397+ val cached = cachedCommands

398+ if (cached != null && System.currentTimeMillis() - cached.fetchedAt < NetworkConfig.catalogCacheTtlMs) {

399+ return cached.value

400+ }

401+ generation = commandsGeneration

402+ }

403+ // Fetch outside the lock (see providers()): a slow/retrying request can't stall other

404+ // callers or cache invalidation; a rare concurrent double-fetch is acceptable here.

405+ val value = withRetry { client!!.get("command").body<List<Command>>() }

406+ commandsMutex.withLock {

407+ // FIX 15: skip the store if an invalidateCommandsCache() raced this fetch (see providers()).

408+ if (commandsGeneration == generation) cachedCommands = CachedEntry(value, System.currentTimeMillis())

409+ }

410+ return value

411+ }

412+

413+ /** Invalidate the catalog cache (e.g. on server switch). */

414+ open suspend fun invalidateCache() {

415+ // FIX 15: bump each generation so an in-flight fetch drops its now-stale result.

416+ providersMutex.withLock { cachedProviders = null; providersGeneration++ }

417+ agentsMutex.withLock { cachedAgents = null; agentsGeneration++ }

418+ commandsMutex.withLock { cachedCommands = null; commandsGeneration++ }

419+ }

420+

421+ open suspend fun invalidateProvidersCache() {

422+ providersMutex.withLock { cachedProviders = null; providersGeneration++ }

423+ }

424+

425+ open suspend fun invalidateAgentsCache() {

426+ agentsMutex.withLock { cachedAgents = null; agentsGeneration++ }

427+ }

428+

429+ open suspend fun invalidateCommandsCache() {

430+ commandsMutex.withLock { cachedCommands = null; commandsGeneration++ }

431+ }

432+

433+ /** Respond to a permission request so a paused tool run can proceed. */

434+ open suspend fun respondPermission(

435+ sessionId: String,

436+ permissionId: String,

437+ response: PermissionResponse,

438+ ): String = try {

439+ withRetry {

440+ client!!.post("session/${encode(sessionId)}/permissions/${encode(permissionId)}") {

441+ contentType(ContentType.Application.Json)

442+ setBody(PermissionReplyBody(response.wire))

443+ }.body<String>()

444+ }

445+ } catch (t: ClientRequestException) {

446+ // A response that reached the server but whose reply was lost gets retried; the

447+ // retry finds the permission already resolved (404 gone / 409 conflict). Both mean

448+ // the answer landed (or the session/permission no longer exists, in which case the

449+ // response is moot anyway), so treat them as success instead of a spurious failure

450+ // that would re-queue the dialog against a gone session. Log the swallowed status

451+ // so a 404 caused by a deleted session is debuggable rather than fully silent.

452+ val code = t.response.status.value

453+ if (code != 404 && code != 409) throw t

454+ android.util.Log.d("OpencodeApi", "respondPermission swallowed $code for session=$sessionId permission=$permissionId")

455+ ""

456+ }

457+

458+ // --- Files ---

459+

460+ open suspend fun findFiles(query: String): List<String> = withRetry {

461+ client!!.get("find/file") { parameter("query", query) }.body()

462+ }

463+

464+ /** Ripgrep content search across the project (`GET /find?pattern=`). */

465+ open suspend fun findText(pattern: String): List<FindMatch> = withRetry {

466+ client!!.get("find") { parameter("pattern", pattern) }.body()

467+ }

468+

469+ /** LSP workspace symbol search (`GET /find/symbol?query=`). */

470+ open suspend fun findSymbol(query: String): List<SymbolResult> = withRetry {

471+ client!!.get("find/symbol") { parameter("query", query) }.body()

472+ }

473+

474+ open suspend fun listDirectory(path: String): List<FileNode> = withRetry {

475+ client!!.get("file") { parameter("path", path) }.body()

476+ }

477+

478+ open suspend fun readFile(path: String): FileContent = withRetry {

479+ client!!.get("file/content") { parameter("path", path) }.body()

480+ }

481+

482+ open suspend fun fileStatus(): List<FileStatusEntry> = withRetry {

483+ client!!.get("file/status").body()

484+ }

485+}

486+

487+private suspend fun <T> withRetry(

488+ maxAttempts: Int = NetworkConfig.retryMaxAttempts,

489+ initialDelayMs: Long = NetworkConfig.retryInitialDelayMs,

490+ block: suspend () -> T,

491+): T = withRetryInternal(maxAttempts, initialDelayMs, jitterFactor = NetworkConfig.retryJitterFactor, block)

492+

493+/**

494+ * Retry a suspending block up to [maxAttempts] times with exponential backoff.

495+ * Cancellation exceptions are re-thrown immediately. Client errors (4xx) are

496+ * non-retryable — a 401 or 404 won't succeed on retry, so they surface immediately

497+ * instead of wasting up to 3.5 s of backoff. Network failures, timeouts, and 5xx

498+ * server errors are retried. Exposed as `internal` so the retry/skip rules are

499+ * unit-testable without an HTTP server.

500+ */

501+internal suspend fun <T> withRetryInternal(

502+ maxAttempts: Int = NetworkConfig.retryMaxAttempts,

503+ initialDelayMs: Long = NetworkConfig.retryInitialDelayMs,

504+ jitterFactor: Double = NetworkConfig.retryJitterFactor,

505+ block: suspend () -> T,

506+): T {

507+ var lastError: Throwable? = null

508+ for (attempt in 1..maxAttempts) {

509+ try {

510+ return block()

511+ } catch (c: kotlinx.coroutines.CancellationException) {

512+ throw c

513+ } catch (t: ClientRequestException) {

514+ // 408 (Request Timeout) and 429 (Too Many Requests) are transient — retry with

515+ // backoff. All other 4xx are non-retryable (a 401/404 won't succeed on retry).

516+ val status = t.response.status.value

517+ if (status != 408 && status != 429) throw t

518+ lastError = t

519+ if (attempt < maxAttempts) {

520+ delay(jitteredBackoff(attempt, initialDelayMs, jitterFactor))

521+ }

522+ } catch (t: ServerResponseException) {

523+ // 5xx server errors are retryable with backoff.

524+ lastError = t

525+ if (attempt < maxAttempts) {

526+ delay(jitteredBackoff(attempt, initialDelayMs, jitterFactor))

527+ }

528+ } catch (t: ResponseException) {

529+ // 3xx (redirect limit exceeded) is non-retryable.

530+ throw t

531+ } catch (t: io.ktor.serialization.ContentConvertException) {

532+ // A malformed/unexpected response body (deserialization failure via content

533+ // negotiation) is deterministic — it fails identically on every attempt — so

534+ // retrying only burns the whole backoff budget re-parsing the same bytes. Fail

535+ // fast instead.

536+ throw t

537+ } catch (t: IllegalArgumentException) {

538+ // Also deterministic: a bad argument, or a raw kotlinx SerializationException

539+ // (which extends IllegalArgumentException) thrown outside content negotiation.

540+ throw t

541+ } catch (t: Exception) {

542+ lastError = t

543+ if (attempt < maxAttempts) {

544+ delay(jitteredBackoff(attempt, initialDelayMs, jitterFactor))

545+ }

546+ }

547+ }

548+ throw lastError ?: IllegalStateException("withRetry failed without error")

549+}

550+

551+/** Computes an exponential backoff delay with symmetric jitter. Exposed as `internal`

552+ * so the backoff formula is unit-testable without an HTTP server. */

553+internal fun jitteredBackoff(

554+ attempt: Int,

555+ initialDelayMs: Long,

556+ jitterFactor: Double,

557+): Long {

558+ // Guard against Int overflow from the shift and Long overflow from

559+ // the multiplication at high attempt counts.

560+ val shift = (attempt - 1).coerceAtMost(30)

561+ val baseDelay = (initialDelayMs * (1L shl shift)).coerceAtMost(NetworkConfig.retryMaxDelayMs)

562+ // Symmetric jitter: vary by ±jitterFactor so the delay is sometimes

563+ // shorter, sometimes longer — spreads concurrent client retries and

564+ // prevents thundering-herd reconnection storms.

565+ val jitter = ((baseDelay * jitterFactor) * (Random.nextDouble() * 2 - 1)).toLong()

566+ return (baseDelay + jitter).coerceAtLeast(0)

567+}

568+

569+/** URL-encode a path segment, replacing + with %20 (URLEncoder uses query-param encoding).

570+ * URLEncoder leaves '.' unencoded, so a "." or ".." segment would otherwise survive as a real

571+ * path-traversal component; percent-encode a segment that is nothing but dots. */

572+private fun encode(segment: String): String {

573+ val encoded = URLEncoder.encode(segment, "UTF-8").replace("+", "%20")

574+ return if (encoded.isNotEmpty() && encoded.all { it == '.' }) encoded.replace(".", "%2E") else encoded

575+}

app/src/main/java/soy/iko/opencode/data/network/OpencodeJson.ktnew file+37

@@ -0,0 +1,37 @@

1+package soy.iko.opencode.data.network

2+

3+import soy.iko.opencode.data.model.BusEvent

4+import soy.iko.opencode.data.model.MessageInfo

5+import soy.iko.opencode.data.model.Part

6+import soy.iko.opencode.data.model.ToolState

7+import soy.iko.opencode.data.model.UnknownEvent

8+import soy.iko.opencode.data.model.UnknownMessage

9+import soy.iko.opencode.data.model.UnknownPart

10+import soy.iko.opencode.data.model.ToolUnknown

11+import kotlinx.serialization.ExperimentalSerializationApi

12+import kotlinx.serialization.json.Json

13+import kotlinx.serialization.modules.SerializersModule

14+

15+/**

16+ * Single shared Json for the whole app.

17+ *

18+ * The polymorphic default deserializers are the resilience layer: when the server

19+ * sends a `type` / `role` / `status` we don't model, decoding falls back to the

20+ * Unknown variant instead of throwing — so a new opencode release can't break the

21+ * event stream or message decoding.

22+ */

23+@OptIn(ExperimentalSerializationApi::class)

24+val OpencodeJson: Json = Json {

25+ ignoreUnknownKeys = true

26+ isLenient = true

27+ coerceInputValues = true

28+ encodeDefaults = true

29+ explicitNulls = false

30+ classDiscriminator = "type"

31+ serializersModule = SerializersModule {

32+ polymorphicDefaultDeserializer(Part::class) { UnknownPart.serializer() }

33+ polymorphicDefaultDeserializer(BusEvent::class) { UnknownEvent.serializer() }

34+ polymorphicDefaultDeserializer(MessageInfo::class) { UnknownMessage.serializer() }

35+ polymorphicDefaultDeserializer(ToolState::class) { ToolUnknown.serializer() }

36+ }

37+}

app/src/main/java/soy/iko/opencode/data/repo/AttachmentDraftStore.ktnew file+117

@@ -0,0 +1,117 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import android.util.Log

5+import kotlinx.coroutines.Dispatchers

6+import kotlinx.coroutines.sync.Mutex

7+import kotlinx.coroutines.sync.withLock

8+import kotlinx.coroutines.withContext

9+import kotlinx.serialization.Serializable

10+import kotlinx.serialization.decodeFromString

11+import kotlinx.serialization.encodeToString

12+import kotlinx.serialization.json.Json

13+import soy.iko.opencode.util.runCatchingCancellable

14+import java.io.File

15+

16+/**

17+ * One staged (not-yet-sent) attachment, in the minimal form needed to re-send and preview

18+ * it after a process restart. Only the self-contained wire payload is kept — the base64

19+ * `data:` [url] — because the original content Uri's read permission does NOT survive a

20+ * process restart, whereas the data URL is self-sufficient (and Coil re-renders it as the

21+ * thumbnail for images).

22+ */

23+@Serializable

24+data class PersistedAttachment(

25+ val id: String,

26+ val name: String,

27+ val mime: String,

28+ val url: String,

29+ val filename: String? = null,

30+)

31+

32+/**

33+ * Persists attachments staged for each session so an interrupted compose survives process

34+ * death, mirroring how [DraftStore] persists the text draft.

35+ *

36+ * Backed by one small JSON file per session under filesDir (not cacheDir, which the OS may

37+ * evict) rather than SharedPreferences: a base64 payload can be several megabytes and

38+ * SharedPreferences loads its whole file into memory on first access.

39+ */

40+open class AttachmentDraftStore private constructor(

41+ private val appContext: Context?,

42+ @Suppress("unused") private val testMode: Boolean,

43+) {

44+ constructor(context: Context) : this(context.applicationContext, false)

45+ protected constructor() : this(null, true)

46+

47+ private val json = Json { ignoreUnknownKeys = true; encodeDefaults = true }

48+

49+ /** Session ids are validated tokens upstream, but sanitize anyway so a stray id can't

50+ * escape the directory. */

51+ private val idRegex = Regex("[^A-Za-z0-9_-]")

52+

53+ private val dir: File? by lazy {

54+ appContext?.let { File(it.filesDir, "attachment_drafts").apply { mkdirs() } }

55+ }

56+

57+ private fun fileFor(sessionId: String): File? =

58+ dir?.let { File(it, idRegex.replace(sessionId, "_") + ".json") }

59+

60+ /** Per-session write lock so rapid add/remove/clear mutations (each launched as an

61+ * independent coroutine by the ViewModel) serialize their writes to the same file

62+ * instead of racing — otherwise an older snapshot could land last and overwrite the

63+ * newer one on disk, or two writes could tear the file. */

64+ private val locks = java.util.concurrent.ConcurrentHashMap<String, Mutex>()

65+ private fun lockFor(sessionId: String): Mutex = locks.getOrPut(sessionId) { Mutex() }

66+

67+ /** Load the staged attachments for [sessionId], or empty if none / unreadable. */

68+ open suspend fun load(sessionId: String): List<PersistedAttachment> = lockFor(sessionId).withLock {

69+ withContext(Dispatchers.IO) {

70+ val file = fileFor(sessionId)?.takeIf { it.exists() } ?: return@withContext emptyList()

71+ runCatchingCancellable { json.decodeFromString<List<PersistedAttachment>>(file.readText()) }

72+ .getOrDefault(emptyList())

73+ }

74+ }

75+

76+ /** Persist [attachments] for [sessionId] (an empty list deletes the file). */

77+ open suspend fun save(sessionId: String, attachments: List<PersistedAttachment>): Unit = lockFor(sessionId).withLock {

78+ withContext(Dispatchers.IO) {

79+ val file = fileFor(sessionId) ?: return@withContext

80+ runCatchingCancellable {

81+ if (attachments.isEmpty()) file.delete()

82+ else {

83+ // FIX: write atomically (temp file + rename) like RecentSessionsStore so a

84+ // process kill mid-write can't leave a truncated file that fails to decode

85+ // and silently drops the staged attachments on reload.

86+ val encoded = json.encodeToString(attachments)

87+ val tmp = File(file.parentFile, file.name + ".tmp")

88+ tmp.writeText(encoded)

89+ if (!tmp.renameTo(file)) {

90+ try {

91+ file.writeText(encoded)

92+ } finally {

93+ tmp.delete()

94+ }

95+ }

96+ }

97+ }.onFailure { Log.w("AttachmentDraftStore", "Failed to persist attachments for $sessionId", it) }

98+ Unit

99+ }

100+ }

101+

102+ /** Remove staged attachments for a session (call on session deletion). */

103+ open suspend fun remove(sessionId: String) {

104+ // Keep the per-session Mutex in [locks] rather than evicting it: remove() is not always

105+ // terminal — a concurrent teardown save() for the same session must serialize against this

106+ // delete under the *same* Mutex instance. Evicting here would let that save() acquire a

107+ // fresh Mutex, so the two operations no longer serialize (resurrecting an orphan file, or

108+ // theoretically tearing a write). The bounded per-session map growth matches the other

109+ // lock-keyed stores.

110+ lockFor(sessionId).withLock {

111+ withContext(Dispatchers.IO) {

112+ runCatchingCancellable { fileFor(sessionId)?.delete() }

113+ Unit

114+ }

115+ }

116+ }

117+}

app/src/main/java/soy/iko/opencode/data/repo/BackupManager.ktnew file+214

@@ -0,0 +1,214 @@

1+package soy.iko.opencode.data.repo

2+

3+import kotlinx.coroutines.flow.first

4+import kotlinx.serialization.Serializable

5+import kotlinx.serialization.decodeFromString

6+import kotlinx.serialization.encodeToString

7+import kotlinx.serialization.json.Json

8+import soy.iko.opencode.data.model.ServerProfile

9+

10+/** A server entry in a backup. [password] is present only when the user opted to include it. */

11+@Serializable

12+data class BackupServer(

13+ val id: String,

14+ val label: String,

15+ val baseUrl: String,

16+ val username: String? = null,

17+ val password: String? = null,

18+ val requireHttps: Boolean = false,

19+ val certPin: String? = null,

20+)

21+

22+/** App preferences in a backup. */

23+@Serializable

24+data class BackupSettings(

25+ // Every field is defaulted (to SettingsStore's own defaults) so a backup written by an older

26+ // app version — one whose settings block predates a field added later — still decodes. Without

27+ // defaults a missing field throws MissingFieldException in import() BEFORE the server-restore

28+ // loop, aborting the ENTIRE restore (servers/pins/archives included) despite the best-effort

29+ // contract. ignoreUnknownKeys only tolerates EXTRA keys, not missing required ones.

30+ val themeMode: String = ThemeMode.SYSTEM.name,

31+ val dynamicColor: Boolean = false,

32+ val sendOnEnter: Boolean = true,

33+ val appLock: Boolean = false,

34+ val appLockReLockSeconds: Int = SettingsStore.DEFAULT_APP_LOCK_RELOCK_SECONDS,

35+ val chatTextScale: Float = SettingsStore.DEFAULT_CHAT_TEXT_SCALE,

36+ val codeWrap: Boolean = false,

37+ val sessionSortMode: String = "RECENT",

38+ val sessionSortDescending: Boolean = true,

39+ val sessionShowArchived: Boolean = false,

40+ val preferredModelId: String = "",

41+ val preferredAgentName: String = "",

42+ val compactMessageSpacing: Boolean = false,

43+ val hapticsEnabled: Boolean = true,

44+ val reducedMotion: Boolean = false,

45+ val languageOverride: String = "",

46+ val notifRunComplete: Boolean = true,

47+ val notifPermission: Boolean = true,

48+ val notifError: Boolean = true,

49+ val swipeLeftAction: String = SwipeAction.DELETE.name,

50+ val swipeRightAction: String = SwipeAction.ARCHIVE.name,

51+)

52+

53+/** The full backup document. [version] guards against future format changes: [import] rejects

54+ * an unknown major version before any writes so a newer-schema backup can't silently

55+ * mis-import or leave a partial restore. */

56+@Serializable

57+data class BackupData(

58+ val version: Int = 1,

59+ val servers: List<BackupServer> = emptyList(),

60+ val settings: BackupSettings? = null,

61+ val pinned: List<String> = emptyList(),

62+ val archived: List<String> = emptyList(),

63+)

64+

65+/**

66+ * Exports/imports the app's servers, settings, and per-session flags as a single JSON

67+ * document (via the Storage Access Framework in the UI). Passwords are only written when the

68+ * user explicitly opts in, since the exported file is plaintext and leaves the app's encrypted

69+ * store.

70+ */

71+class BackupManager(

72+ private val profileStore: ProfileStore,

73+ private val settingsStore: SettingsStore,

74+ private val sessionPrefsStore: SessionPrefsStore,

75+) {

76+ private val json = Json { prettyPrint = true; ignoreUnknownKeys = true; encodeDefaults = true }

77+

78+ /** Backup format versions [import] knows how to restore. Bump when the schema changes

79+ * incompatibly, and add the new value here once the import path handles it. An unknown

80+ * version is rejected before any writes so a newer-schema backup can't silently

81+ * mis-import or leave a partial restore (servers upserted, then a missing required field

82+ * throws mid-settings). */

83+ private val supportedVersions = setOf(1)

84+

85+ /** Build the backup JSON. Reads the current profiles/settings/flags. */

86+ suspend fun export(includePasswords: Boolean): String {

87+ val servers = profileStore.profiles.first().map {

88+ BackupServer(

89+ id = it.id,

90+ label = it.label,

91+ baseUrl = it.baseUrl,

92+ username = it.username,

93+ password = if (includePasswords) it.password else null,

94+ requireHttps = it.requireHttps,

95+ certPin = it.certPin,

96+ )

97+ }

98+ val settings = BackupSettings(

99+ themeMode = settingsStore.themeMode.first().name,

100+ dynamicColor = settingsStore.dynamicColor.first(),

101+ sendOnEnter = settingsStore.sendOnEnter.first(),

102+ appLock = settingsStore.appLock.first(),

103+ appLockReLockSeconds = settingsStore.appLockReLockSeconds.first(),

104+ chatTextScale = settingsStore.chatTextScale.first(),

105+ codeWrap = settingsStore.codeWrap.first(),

106+ sessionSortMode = settingsStore.sessionSortMode.first(),

107+ sessionSortDescending = settingsStore.sessionSortDescending.first(),

108+ sessionShowArchived = settingsStore.sessionShowArchived.first(),

109+ preferredModelId = settingsStore.preferredModelId.first(),

110+ preferredAgentName = settingsStore.preferredAgentName.first(),

111+ compactMessageSpacing = settingsStore.compactMessageSpacing.first(),

112+ hapticsEnabled = settingsStore.hapticsEnabled.first(),

113+ reducedMotion = settingsStore.reducedMotion.first(),

114+ languageOverride = settingsStore.languageOverride.first(),

115+ notifRunComplete = settingsStore.notifRunComplete.first(),

116+ notifPermission = settingsStore.notifPermission.first(),

117+ notifError = settingsStore.notifError.first(),

118+ swipeLeftAction = settingsStore.swipeLeftAction.first(),

119+ swipeRightAction = settingsStore.swipeRightAction.first(),

120+ )

121+ val data = BackupData(

122+ servers = servers,

123+ settings = settings,

124+ pinned = sessionPrefsStore.pinned.first().toList(),

125+ archived = sessionPrefsStore.archived.first().toList(),

126+ )

127+ return json.encodeToString(data)

128+ }

129+

130+ /** Apply a backup document. Throws on malformed JSON so the caller can report it. Servers

131+ * are upserted (existing ids overwritten); settings and flags are restored best-effort.

132+ * An unknown [BackupData.version] is rejected BEFORE any writes so a newer-schema backup

133+ * can't silently mis-import or leave a partial restore (servers upserted, then a missing

134+ * required field throws mid-settings). */

135+ suspend fun import(text: String) {

136+ val data = json.decodeFromString<BackupData>(text)

137+ require(data.version in supportedVersions) {

138+ "Unsupported backup version ${data.version}; supported: $supportedVersions"

139+ }

140+ for (s in data.servers) {

141+ val username = s.username?.takeIf { it.isNotBlank() }

142+ val incomingPassword = s.password?.takeIf { it.isNotEmpty() }

143+ // A backup exported *without* passwords carries null. This is an upsert, so don't let

144+ // that null wipe a password already stored for this server id — preserve the existing

145+ // secret when the backup didn't include one (only the backup explicitly carrying a

146+ // password should overwrite it). Re-importing a password-less backup would otherwise

147+ // silently break auth for every matching server.

148+ val password = incomingPassword ?: username?.let {

149+ profileStore.resolve(

150+ ServerProfile(id = s.id, label = s.label, baseUrl = s.baseUrl, username = it),

151+ ).password

152+ }

153+ profileStore.save(

154+ ServerProfile(

155+ id = s.id,

156+ label = s.label,

157+ baseUrl = s.baseUrl,

158+ username = username,

159+ password = password,

160+ lastUsed = 0,

161+ requireHttps = s.requireHttps,

162+ certPin = s.certPin?.takeIf { it.isNotBlank() },

163+ ),

164+ )

165+ }

166+ data.settings?.let { settings ->

167+ // Parse the enum defensively (a bad name from an edited backup shouldn't abort the

168+ // import) WITHOUT wrapping the suspend setThemeMode call — wrapping it would swallow

169+ // a CancellationException and break structured concurrency.

170+ ThemeMode.entries.find { it.name == settings.themeMode }?.let { settingsStore.setThemeMode(it) }

171+ settingsStore.setDynamicColor(settings.dynamicColor)

172+ settingsStore.setSendOnEnter(settings.sendOnEnter)

173+ settingsStore.setAppLock(settings.appLock)

174+ settingsStore.setAppLockReLockSeconds(settings.appLockReLockSeconds)

175+ settingsStore.setChatTextScale(settings.chatTextScale)

176+ settingsStore.setCodeWrap(settings.codeWrap)

177+ // sessionSortMode is written below, AFTER validation against the known enum

178+ // entries — do NOT write it unconditionally here, or a garbage string from a

179+ // hand-edited/malicious backup would persist with no in-app reset path (the

180+ // validated write below only fires when the enum is found, so an earlier

181+ // unconditional write would leave the corrupt value in place when it's not).

182+ settingsStore.setSessionSortDescending(settings.sessionSortDescending)

183+ settingsStore.setSessionShowArchived(settings.sessionShowArchived)

184+ settingsStore.setPreferredModelId(settings.preferredModelId)

185+ settingsStore.setPreferredAgentName(settings.preferredAgentName)

186+ settingsStore.setCompactMessageSpacing(settings.compactMessageSpacing)

187+ settingsStore.setHapticsEnabled(settings.hapticsEnabled)

188+ settingsStore.setReducedMotion(settings.reducedMotion)

189+ // Validate the sort mode against the known enum entries before persisting, so a

190+ // garbage string from a hand-edited/malicious backup can't produce a broken sort

191+ // with no in-app reset path (the picker writes known values, but a corrupt one

192+ // would persist and leave the list in an undefined order). Mirrors the defensive

193+ // enum parsing used for themeMode and swipe actions above.

194+ soy.iko.opencode.ui.session.SessionSortMode.entries

195+ .find { it.name == settings.sessionSortMode }

196+ ?.let { settingsStore.setSessionSortMode(it.name) }

197+ // Validate the language override is a plausible ISO 639-1 code (2–3 lowercase

198+ // letters, optionally with a region/script subtag) before persisting, so a bad

199+ // string doesn't reach AppCompat's per-app language API. Empty (system default)

200+ // is always allowed.

201+ val lang = settings.languageOverride

202+ if (lang.isEmpty() || lang.matches(Regex("^[a-z]{2,3}(-[A-Za-z0-9]+)*$"))) {

203+ settingsStore.setLanguageOverride(lang)

204+ }

205+ settingsStore.setNotifRunComplete(settings.notifRunComplete)

206+ settingsStore.setNotifPermission(settings.notifPermission)

207+ settingsStore.setNotifError(settings.notifError)

208+ SwipeAction.entries.find { it.name == settings.swipeLeftAction }?.let { settingsStore.setSwipeLeftAction(it) }

209+ SwipeAction.entries.find { it.name == settings.swipeRightAction }?.let { settingsStore.setSwipeRightAction(it) }

210+ }

211+ data.pinned.forEach { sessionPrefsStore.setPinned(it, true) }

212+ data.archived.forEach { sessionPrefsStore.setArchived(it, true) }

213+ }

214+}

app/src/main/java/soy/iko/opencode/data/repo/CrashLogger.ktnew file+323

@@ -0,0 +1,323 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import android.content.pm.PackageManager

5+import android.os.Build

6+import android.util.Log

7+import androidx.core.content.pm.PackageInfoCompat

8+import kotlinx.coroutines.CoroutineScope

9+import kotlinx.coroutines.Dispatchers

10+import kotlinx.coroutines.Job

11+import kotlinx.coroutines.SupervisorJob

12+import kotlinx.coroutines.cancel

13+import kotlinx.coroutines.delay

14+import kotlinx.coroutines.flow.MutableStateFlow

15+import kotlinx.coroutines.flow.StateFlow

16+import kotlinx.coroutines.flow.asStateFlow

17+import kotlinx.coroutines.launch

18+import java.io.File

19+import java.io.PrintWriter

20+import java.io.StringWriter

21+import java.text.SimpleDateFormat

22+import java.util.Date

23+import java.util.Locale

24+import soy.iko.opencode.util.runCatchingCancellable

25+

26+/**

27+ * A self-contained crash reporter with no network or third-party backend. An uncaught

28+ * exception is written to app-private storage ([Context.filesDir]/crashes) as a plain

29+ * text report (timestamp, device/app metadata, and the full stack trace), then the

30+ * previous handler is re-invoked so the process still dies normally.

31+ *

32+ * Reports are surfaced in the in-app Diagnostics screen, where they can be viewed,

33+ * shared, or deleted. This closes the "no idea what's crashing in the field" gap

34+ * without pulling in a hosted analytics SDK.

35+ */

36+class CrashLogger private constructor(private val appContext: Context) {

37+

38+ data class CrashReport(

39+ val fileName: String,

40+ val timestamp: Long,

41+ val preview: String,

42+ )

43+

44+ private val crashDir = File(appContext.filesDir, "crashes").apply { mkdirs() }

45+ private val scope = CoroutineScope(Dispatchers.IO + SupervisorJob())

46+ private val crashPrefs = appContext.getSharedPreferences("crash_logger", android.content.Context.MODE_PRIVATE)

47+

48+ private val _reports = MutableStateFlow<List<CrashReport>>(emptyList())

49+ val reports: StateFlow<List<CrashReport>> = _reports.asStateFlow()

50+

51+ @Volatile private var installed = false

52+

53+ fun install() {

54+ // Guard against double-install: a second call would capture this handler as `previous`

55+ // and chain it to itself, double-writing crash reports and double-invoking the original

56+ // handler on every crash. The singleton get() mitigates this in production, but install()

57+ // itself must be idempotent (tests, a misconfigured init) so the chain can't form.

58+ if (installed) return

59+ installed = true

60+ val previous = Thread.getDefaultUncaughtExceptionHandler()

61+ Thread.setDefaultUncaughtExceptionHandler { thread, throwable ->

62+ runCatching { writeReport(thread, throwable) }

63+ .onFailure { Log.e("CrashLogger", "Failed to write crash report", it) }

64+ previous?.uncaughtException(thread, throwable)

65+ }

66+ // Load crash reports off the main thread so startup isn't blocked by file I/O

67+ // (listFiles + reading the first line of each report). The StateFlow updates

68+ // whenever the scan completes, so the Diagnostics screen reflects the result.

69+ scope.launch { runCatchingCancellable { refresh() } }

70+ }

71+

72+ /** Monotonic guard so a slower earlier scan can't overwrite a newer one's result.

73+ * refresh() runs on the multi-threaded IO dispatcher from several call sites

74+ * (install/deleteReport/scheduleDelete/clearAll), so two scans can overlap. */

75+ private val refreshGeneration = java.util.concurrent.atomic.AtomicLong(0)

76+

77+ fun refresh() {

78+ val generation = refreshGeneration.incrementAndGet()

79+ // Trim over-capacity reports here (off the crashing thread, on the IO dispatcher) so

80+ // the UncaughtExceptionHandler path does only the single writeText it must to land the

81+ // report before the OS kills the process. Trimming on refresh keeps the cap enforced

82+ // across normal app launches (install calls refresh, and every delete/clear calls it).

83+ trimOldReports()

84+ val scanned = crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }

85+ ?.sortedByDescending { it.lastModified() }

86+ ?.map { f ->

87+ CrashReport(

88+ fileName = f.name,

89+ timestamp = f.lastModified(),

90+ preview = runCatching { f.useLines { it.firstOrNull() ?: "" } }.getOrDefault(""),

91+ )

92+ }

93+ .orEmpty()

94+ // Publish only if no newer refresh has started meanwhile, so a stale scan (e.g. one

95+ // that started before a delete) can't momentarily re-show a just-removed report.

96+ if (generation == refreshGeneration.get()) _reports.value = scanned

97+ }

98+

99+ fun readReport(fileName: String): String? {

100+ val file = File(crashDir, fileName).canonicalFile

101+ if (!file.path.startsWith(crashDir.canonicalPath + File.separator) || !file.isFile) return null

102+ return runCatching { file.readText() }.getOrNull()

103+ }

104+

105+ fun deleteReport(fileName: String) {

106+ scope.launch {

107+ val file = File(crashDir, fileName).canonicalFile

108+ if (file.path.startsWith(crashDir.canonicalPath + File.separator)) {

109+ file.delete()

110+ }

111+ refresh()

112+ }

113+ }

114+

115+ /** Whether any crash report is newer than the last-acknowledged timestamp — i.e. a

116+ * crash happened in a previous run that the user hasn't been prompted about yet.

117+ * Called on cold start to surface a "crashed last time" dialog. */

118+ fun hasUnacknowledgedCrash(): Boolean {

119+ val acknowledgedAt = crashPrefs.getLong(KEY_ACKNOWLEDGED_AT, 0L)

120+ return crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }

121+ ?.any { it.lastModified() > acknowledgedAt } == true

122+ }

123+

124+ /** Mark all current crash reports as acknowledged so the cold-start prompt doesn't

125+ * re-fire on the next launch. */

126+ fun acknowledgeCrashes() {

127+ crashPrefs.edit().putLong(KEY_ACKNOWLEDGED_AT, System.currentTimeMillis()).apply()

128+ }

129+

130+ /** Deferred deletions keyed by file name, so an Undo can cancel one before it fires. */

131+ private val pendingDeletes = java.util.concurrent.ConcurrentHashMap<String, Job>()

132+

133+ /** Files whose scheduled delete has already claimed (passed its delay and removed its

134+ * map entry) and is about to delete or has just deleted. [cancelScheduledDelete]

135+ * consults this to honor its contract: once a delete has fired, undo returns false

136+ * even if a reschedule installed a newer job in the map in the gap between the claim

137+ * and the cancel. Without this, the cancel would remove the newer job and report

138+ * "undo succeeded" while the older job's delete proceeds — contradicting the user

139+ * who tapped Undo and the Diagnostics screen that then shows the file gone. */

140+ private val claimedDeletes = java.util.concurrent.ConcurrentHashMap<String, Boolean>()

141+

142+ /**

143+ * Schedule [fileName] for deletion after [delayMs], cancellable via

144+ * [cancelScheduledDelete]. Runs on the logger's own long-lived scope — not the

145+ * Diagnostics screen's composition scope — so navigating away during the undo window

146+ * still commits the delete instead of silently dropping it. A repeated schedule for

147+ * the same name replaces the prior timer.

148+ */

149+ fun scheduleDelete(fileName: String, delayMs: Long) {

150+ val job = scope.launch {

151+ delay(delayMs)

152+ // Atomically claim the delete by removing our own map entry BEFORE deleting.

153+ // The remove is the synchronization point with cancelScheduledDelete: whichever

154+ // removes the entry first wins. If an undo raced the timer and removed it first,

155+ // this returns false and we skip the delete — so the file survives, matching the

156+ // `true` that cancel returned to the UI. Deleting first (then removing) would let

157+ // a cancel land in the gap and falsely report "undo succeeded" for a gone file.

158+ // remove(name, thisJob) also no-ops for a stale job after a reschedule.

159+ val claimed = coroutineContext[Job]?.let { pendingDeletes.remove(fileName, it) } == true

160+ if (!claimed) return@launch

161+ // Mark this delete as fired so a cancel that arrives AFTER the claim (but before

162+ // the file.delete() completes) honestly reports "already fired" instead of

163+ // "undo succeeded". A reschedule that installed a newer job in the map in that

164+ // gap would otherwise make cancelScheduledDelete remove the newer job and return

165+ // true, while this coroutine still deletes — violating the documented contract.

166+ claimedDeletes[fileName] = true

167+ val file = File(crashDir, fileName).canonicalFile

168+ if (file.path.startsWith(crashDir.canonicalPath + File.separator)) {

169+ file.delete()

170+ }

171+ refresh()

172+ // Clear the fired marker after the delete + refresh so a future scheduleDelete

173+ // for the same name (e.g. a re-created report) starts with a clean slate.

174+ claimedDeletes.remove(fileName)

175+ }

176+ pendingDeletes.put(fileName, job)?.cancel()

177+ }

178+

179+ /** Cancel a pending deferred delete (the Undo action). Returns true if it was still

180+ * pending (undo succeeded), false if the delete had already fired. */

181+ fun cancelScheduledDelete(fileName: String): Boolean {

182+ // If the delete has already claimed (passed its delay), the undo is too late —

183+ // report false even if a reschedule installed a newer job that's still in the map.

184+ if (claimedDeletes.containsKey(fileName)) return false

185+ val job = pendingDeletes.remove(fileName) ?: return false

186+ job.cancel()

187+ return true

188+ }

189+

190+ fun clearAll() {

191+ scope.launch {

192+ crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }?.forEach { it.delete() }

193+ refresh()

194+ }

195+ }

196+

197+ /** Deferred whole-directory clear, cancellable via [cancelScheduledClearAll] so the bulk

198+ * action gets the same undo window as a single-report delete. Runs on the logger's own

199+ * scope so it commits even if the user leaves the Diagnostics screen. */

200+ // AtomicReference (not a bare @Volatile var): the timer-fired claim must be a CAS,

201+ // not an unconditional null, else a reschedule that installed a newer job loses its

202+ // entry to the old coroutine's null and the clear runs immediately instead of after

203+ // the new delay (and cancelScheduledClearAll then falsely reports "already fired").

204+ // Mirrors scheduleDelete's ConcurrentHashMap.remove(name, job) claim.

205+ private val pendingClearAll = java.util.concurrent.atomic.AtomicReference<Job?>(null)

206+

207+ fun scheduleClearAll(delayMs: Long) {

208+ val job = scope.launch {

209+ delay(delayMs)

210+ // Atomically claim the clear by CAS-ing our own entry to null, mirroring

211+ // scheduleDelete's claim pattern: a reschedule (or cancel) that nulls first

212+ // makes this a no-op. Without the CAS, an unconditional null would wipe a

213+ // newer job installed by a reschedule.

214+ val mine = coroutineContext[Job]

215+ if (mine == null || !pendingClearAll.compareAndSet(mine, null)) return@launch

216+ crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }?.forEach { it.delete() }

217+ refresh()

218+ }

219+ pendingClearAll.getAndSet(job)?.cancel()

220+ }

221+

222+ /** Cancel a pending clear-all (the Undo action). Returns true if it was still pending. */

223+ fun cancelScheduledClearAll(): Boolean {

224+ val job = pendingClearAll.getAndSet(null) ?: return false

225+ job.cancel()

226+ return true

227+ }

228+

229+ fun reportCount(): Int = _reports.value.size

230+

231+ /** Cancel the internal coroutine scope so background work doesn't outlive the

232+ * process. Called from [AppContainer.shutdown]. The UncaughtExceptionHandler is

233+ * intentionally left installed — a crash during shutdown still needs to be logged. */

234+ fun shutdown() {

235+ scope.cancel()

236+ }

237+

238+ private fun writeReport(thread: Thread, throwable: Throwable) {

239+ val now = Date()

240+ val stamp = SimpleDateFormat("yyyy-MM-dd_HH-mm-ss-SSS", Locale.US).format(now)

241+ // Append a short random suffix so two crashes in the same millisecond don't

242+ // overwrite each other.

243+ val suffix = java.lang.Long.toHexString(System.nanoTime())

244+ val file = File(crashDir, "crash-$stamp-$suffix.txt")

245+ val sw = StringWriter()

246+ PrintWriter(sw).use { pw ->

247+ pw.println("opencode-android crash report")

248+ pw.println("Time: ${SimpleDateFormat("yyyy-MM-dd HH:mm:ss z", Locale.US).format(now)}")

249+ pw.println("Thread: ${thread.name}")

250+ pw.println("App version: ${appVersion()}")

251+ pw.println("Device: ${Build.MANUFACTURER} ${Build.MODEL}")

252+ pw.println("Android: ${Build.VERSION.RELEASE} (API ${Build.VERSION.SDK_INT})")

253+ pw.println("ABI: ${Build.SUPPORTED_ABIS.joinToString()}")

254+ pw.println()

255+ pw.println(throwable.javaClass.name + ": " + throwable.message)

256+ throwable.printStackTrace(pw)

257+ }

258+ // Scrub URLs from the *entire* report. printStackTrace re-emits the exception

259+ // message (and every "Caused by:" message) verbatim, so scrubbing only the

260+ // top-level message above is futile — Ktor/OkHttp embed the full request URL

261+ // in those messages, which may contain auth or internal paths. Scrubbing the

262+ // assembled text guarantees no URL survives anywhere in the stored report.

263+ //

264+ // NOTE: trimOldReports() is intentionally NOT called here. writeReport runs on the

265+ // crashing thread inside the UncaughtExceptionHandler, where the OS gives ~5s before

266+ // SIGKILL; trimOldReports does listFiles + sortedByDescending + N deletes that could

267+ // exceed that window on a slow device with many old reports, losing THIS report. The

268+ // trim is driven by refresh() instead (IO dispatcher, off the crashing thread), so the

269+ // crash path does only the single writeText it must to preserve the report.

270+ file.writeText(scrubUrls(sw.toString()))

271+ }

272+

273+ /** Keep only the [MAX_REPORTS] most recent crash reports, deleting older ones. Runs inside

274+ * the uncaught-exception handler (the whole call is wrapped in runCatching upstream), so it

275+ * must not throw; each delete is guarded. */

276+ private fun trimOldReports() {

277+ val files = crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") } ?: return

278+ if (files.size <= MAX_REPORTS) return

279+ files.sortedByDescending { it.lastModified() }

280+ .drop(MAX_REPORTS)

281+ .forEach { runCatching { it.delete() } }

282+ }

283+

284+ private fun appVersion(): String = runCatching {

285+ val pi = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

286+ appContext.packageManager.getPackageInfo(

287+ appContext.packageName,

288+ PackageManager.PackageInfoFlags.of(0),

289+ )

290+ } else {

291+ @Suppress("DEPRECATION")

292+ appContext.packageManager.getPackageInfo(appContext.packageName, 0)

293+ }

294+ "${pi.versionName} (${PackageInfoCompat.getLongVersionCode(pi)})"

295+ }.getOrDefault("unknown")

296+

297+ companion object {

298+ /** Cap on retained crash report files. A deterministic crash-loop (e.g. a crash on

299+ * startup) writes one report per crash with no other bound, so without this the

300+ * crashes/ dir grows without limit until the user manually clears it. */

301+ private const val MAX_REPORTS = 20

302+

303+ private const val KEY_ACKNOWLEDGED_AT = "acknowledged_at"

304+

305+ /** Regex matching http(s) URLs, shared by report writing and [scrubUrls]. */

306+ internal val SCRUB_URL_REGEX = Regex("https?://[^\\s\"']+")

307+

308+ /**

309+ * Replace every http(s) URL in [text] with `[url]`. Exposed as `internal` so the

310+ * redaction (used on the whole crash report, including exception messages and

311+ * stack traces produced by printStackTrace) can be unit-tested in isolation.

312+ */

313+ internal fun scrubUrls(text: String): String = SCRUB_URL_REGEX.replace(text, "[url]")

314+

315+ @Volatile

316+ private var instance: CrashLogger? = null

317+

318+ fun get(context: Context): CrashLogger =

319+ instance ?: synchronized(this) {

320+ instance ?: CrashLogger(context.applicationContext).also { instance = it }

321+ }

322+ }

323+}

app/src/main/java/soy/iko/opencode/data/repo/DraftStore.ktnew file+295

@@ -0,0 +1,295 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import kotlinx.coroutines.CoroutineScope

5+import kotlinx.coroutines.Dispatchers

6+import kotlinx.coroutines.flow.MutableStateFlow

7+import kotlinx.coroutines.flow.StateFlow

8+import kotlinx.coroutines.flow.asStateFlow

9+import kotlinx.coroutines.flow.update

10+import android.util.Log

11+import kotlinx.coroutines.launch

12+import soy.iko.opencode.util.runCatchingCancellable

13+import java.util.concurrent.Executors

14+

15+/**

16+ * Persists the in-progress message draft for each session so it survives

17+ * back-navigation and process death. Backed by SharedPreferences because the

18+ * UI needs the initial value synchronously and drafts are low-stakes data.

19+ *

20+ * The prefs file is loaded on a background thread at construction time. Until

21+ * the load completes, [drafts] reports an empty map and [get] returns "" rather

22+ * than blocking the caller (previously a [CountDownLatch] could stall the main

23+ * thread for up to 2 seconds on a slow disk).

24+ */

25+open class DraftStore private constructor(

26+ private val appContext: Context?,

27+ private val scope: CoroutineScope?,

28+ @Suppress("unused") private val testMode: Boolean,

29+) {

30+ constructor(context: Context, scope: CoroutineScope) : this(context.applicationContext, scope, false)

31+ protected constructor() : this(null, null, true)

32+

33+ private val prefs by lazy {

34+ appContext?.getSharedPreferences("drafts", Context.MODE_PRIVATE)

35+ ?: error("No context — override methods in test subclass")

36+ }

37+

38+ /** Single-thread executor for flushDraft when prefs aren't initialized yet,

39+ * so the main thread is never blocked on disk I/O. */

40+ private val flushExecutor by lazy {

41+ Executors.newSingleThreadExecutor { r ->

42+ Thread(r, "DraftStore-flush").apply { isDaemon = true }

43+ }

44+ }

45+

46+ private val _drafts = MutableStateFlow<Map<String, String>>(emptyMap())

47+ /** The full in-memory snapshot of all drafts, updated when prefs finish loading. */

48+ open val drafts: StateFlow<Map<String, String>> = _drafts.asStateFlow()

49+

50+ /** Queued follow-up messages per session, persisted under a namespaced key so a

51+ * follow-up queued mid-run survives process death (the in-memory-only StateFlow in

52+ * ChatViewModel would otherwise lose it, along with the cleared draft). */

53+ private val _followUps = MutableStateFlow<Map<String, String>>(emptyMap())

54+

55+ private val _ready = MutableStateFlow(false)

56+ /** True once the background prefs load has completed. */

57+ open val ready: StateFlow<Boolean> = _ready.asStateFlow()

58+

59+ /** Keys written in-memory (set / cleared / removed) *before* the async prefs load

60+ * finished. For these the in-memory state is authoritative — the load must not

61+ * resurrect a persisted value the user has since cleared, which a plain putAll(current)

62+ * merge cannot express (it can add/override, but not delete). Consulted once, in the

63+ * init merge. Separate sets because drafts and follow-ups share the session-id key space

64+ * but live under different prefs keys. */

65+ // ConcurrentHashMap-backed sets: weakly-consistent iteration so the init merge's forEach

66+ // can't throw ConcurrentModificationException if a mutator adds a key concurrently.

67+ private val touchedDraftKeys: MutableSet<String> = java.util.concurrent.ConcurrentHashMap.newKeySet()

68+ private val touchedFollowUpKeys: MutableSet<String> = java.util.concurrent.ConcurrentHashMap.newKeySet()

69+

70+ private fun markDraftTouched(sessionId: String) {

71+ if (!_ready.value) touchedDraftKeys.add(sessionId)

72+ }

73+ private fun markFollowUpTouched(sessionId: String) {

74+ if (!_ready.value) touchedFollowUpKeys.add(sessionId)

75+ }

76+

77+ init {

78+ // Eagerly load the prefs file on a background thread so the first main-thread

79+ // get() doesn't block on disk I/O. The loaded snapshot is published via [_drafts]

80+ // so callers can observe readiness without blocking.

81+ if (scope != null && appContext != null) {

82+ scope.launch(Dispatchers.IO) {

83+ // runCatchingCancellable (not plain runCatching): this block runs in a

84+ // coroutine, and plain runCatching swallows CancellationException — if a

85+ // future suspend point is added here, cancellation would leave _ready

86+ // forever false and drafts stuck loading. Matches the convention used by

87+ // the sibling stores (MessageCacheStore, OutboxStore, AttachmentDraftStore).

88+ val all = runCatchingCancellable {

89+ prefs.all.mapValues { it.value as? String ?: "" }

90+ }.getOrDefault(emptyMap())

91+ // Partition persisted keys: follow-up keys carry a prefix, everything else

92+ // is a plain per-session draft.

93+ val drafts = mutableMapOf<String, String>()

94+ val followUps = mutableMapOf<String, String>()

95+ all.forEach { (k, v) ->

96+ if (k.startsWith(FOLLOWUP_PREFIX)) followUps[k.removePrefix(FOLLOWUP_PREFIX)] = v

97+ else drafts[k] = v

98+ }

99+ // Merge instead of overwriting: any in-memory writes that arrived before

100+ // the background load completed (e.g. a share-intent draft injected via

101+ // setImmediate) take priority over the persisted snapshot so they aren't

102+ // clobbered. For keys the user explicitly touched before the load finished,

103+ // drop the persisted entry first so a value they *cleared* isn't resurrected

104+ // (the cleared key is absent from `current`, so putAll alone can't remove it).

105+ _drafts.update { current ->

106+ drafts.apply {

107+ touchedDraftKeys.forEach { remove(it) }

108+ putAll(current)

109+ }

110+ }

111+ _followUps.update { current ->

112+ followUps.apply {

113+ touchedFollowUpKeys.forEach { remove(it) }

114+ putAll(current)

115+ }

116+ }

117+ _ready.value = true

118+ }

119+ } else {

120+ _ready.value = true

121+ }

122+ }

123+

124+ /** Returns the draft for [sessionId], or "" if not found or still loading. */

125+ open fun get(sessionId: String): String = _drafts.value[sessionId].orEmpty()

126+

127+ /** Returns the queued follow-up for [sessionId], or "" if none / still loading. */

128+ open fun getFollowUp(sessionId: String): String = _followUps.value[sessionId].orEmpty()

129+

130+ /** Persist a queued follow-up immediately (fire-and-forget, main-thread-safe).

131+ * Mirrors [flushDraft]: async apply() when prefs are open, else a background thread,

132+ * so a follow-up queued just before process death is flushed before the process exits.

133+ * A blank [text] clears the stored follow-up. */

134+ open fun flushFollowUp(sessionId: String, text: String) {

135+ markFollowUpTouched(sessionId)

136+ _followUps.update { current ->

137+ val updated = current.toMutableMap()

138+ if (text.isBlank()) updated.remove(sessionId) else updated[sessionId] = text

139+ updated

140+ }

141+ writeAsync(FOLLOWUP_PREFIX + sessionId, text)

142+ }

143+

144+ /** Persist [key]=[text] (or remove it when blank) without blocking the main thread on

145+ * first-time disk I/O — see [flushDraft] for the prefs-not-yet-open rationale. */

146+ private fun writeAsync(key: String, text: String) {

147+ val write = {

148+ runCatching {

149+ prefs.edit().apply {

150+ if (text.isBlank()) remove(key) else putString(key, text)

151+ }.apply()

152+ }.onFailure { Log.w("DraftStore", "Failed to persist $key", it) }

153+ Unit

154+ }

155+ // FIX: always submit to the single-thread flushExecutor (never apply directly) so

156+ // writes persist in submission order. Previously the post-init fast path applied

157+ // synchronously on the caller's thread, which could land BEFORE an earlier still-queued

158+ // write, persisting stale text. The task resolves the prefs lazy and calls apply().

159+ submitFlush(write, key)

160+ }

161+

162+ /** Update the in-memory draft immediately without persisting to disk.

163+ * Used when navigation must see the new value synchronously (e.g. share-intent

164+ * injection before ChatScreen composes). Call [set] afterwards to persist. */

165+ open fun setImmediate(sessionId: String, text: String) {

166+ markDraftTouched(sessionId)

167+ _drafts.update { current ->

168+ val updated = current.toMutableMap()

169+ if (text.isBlank()) updated.remove(sessionId) else updated[sessionId] = text

170+ updated

171+ }

172+ }

173+

174+ open suspend fun set(sessionId: String, text: String) {

175+ markDraftTouched(sessionId)

176+ _drafts.update { current ->

177+ val updated = current.toMutableMap()

178+ if (text.isBlank()) updated.remove(sessionId) else updated[sessionId] = text

179+ updated

180+ }

181+ // Route persistence through the single-thread flushExecutor (like the other writers)

182+ // rather than the shared IO pool, so this write can't race ahead of an earlier queued

183+ // flush and land stale. writeAsync persists sessionId=text (or removes it when blank),

184+ // which is exactly this draft's persistence.

185+ writeAsync(sessionId, text)

186+ }

187+

188+ /** Remove the draft for a session (call on session deletion to avoid orphaned entries).

189+ * Also clears any queued follow-up so a deleted session leaves nothing behind. */

190+ open suspend fun remove(sessionId: String) {

191+ markDraftTouched(sessionId)

192+ markFollowUpTouched(sessionId)

193+ _drafts.update { current ->

194+ val updated = current.toMutableMap()

195+ updated.remove(sessionId)

196+ updated

197+ }

198+ _followUps.update { current ->

199+ val updated = current.toMutableMap()

200+ updated.remove(sessionId)

201+ updated

202+ }

203+ // Submit the (combined draft + follow-up) removal to the same single-thread

204+ // flushExecutor the other writers use, so it can't race ahead of an earlier queued

205+ // write and resurrect stale text. Mirrors flushDraft's submission pattern.

206+ submitFlush(

207+ {

208+ runCatching {

209+ prefs.edit().remove(sessionId).remove(FOLLOWUP_PREFIX + sessionId).apply()

210+ }.onFailure { Log.w("DraftStore", "Failed to remove draft for $sessionId", it) }

211+ },

212+ "remove($sessionId)",

213+ )

214+ }

215+

216+ /**

217+ * Synchronously persist a draft. Intended for [ViewModel.onCleared] where the

218+ * viewModelScope is already cancelled and a suspending write can't be used.

219+ *

220+ * If the SharedPreferences file has already been opened (the normal case — the

221+ * background init load touches it shortly after construction), the write uses

222+ * [apply] (asynchronous) and returns immediately without blocking the main thread.

223+ *

224+ * If the prefs file has NOT been opened yet (a rare race where onCleared fires

225+ * before the background init), the write is dispatched to a background thread

226+ * instead of blocking the main thread on a synchronous disk read. The draft

227+ * may be lost if the process exits before the write completes, but this is

228+ * preferable to an ANR.

229+ */

230+ open fun flushDraft(sessionId: String, text: String) {

231+ markDraftTouched(sessionId)

232+ _drafts.update { current ->

233+ val updated = current.toMutableMap()

234+ if (text.isBlank()) updated.remove(sessionId) else updated[sessionId] = text

235+ updated

236+ }

237+ // FIX: always route the persistence through the single-thread flushExecutor so writes

238+ // land in submission order. Previously, once prefs were open this applied synchronously

239+ // on the calling (main) thread, so a newer direct write could persist BEFORE an older

240+ // still-queued write completed, clobbering the draft with stale text. The executor task

241+ // resolves the prefs lazy and uses apply() (async) exactly as before; the write may be

242+ // lost only if the process exits before the queued task runs (as previously).

243+ submitFlush(

244+ {

245+ runCatching {

246+ prefs.edit().apply {

247+ if (text.isBlank()) remove(sessionId) else putString(sessionId, text)

248+ }.apply()

249+ }.onFailure { Log.w("DraftStore", "Failed to flush draft for $sessionId", it) }

250+ },

251+ "flushDraft($sessionId)",

252+ )

253+ }

254+

255+ /** Submit a flush task to the single-thread executor, surfacing a post-shutdown submit as a

256+ * logged warning instead of silently swallowing the RejectedExecutionException. Previously

257+ * the bare `runCatching { flushExecutor.execute { ... } }` swallowed RejectedExecutionException

258+ * after [shutdown], so the in-memory _drafts was already updated but the disk write never

259+ * landed with no signal — a draft silently lost. Logging makes the failure observable so

260+ * ordering bugs (shutdown before all VM onCleared flushes) are diagnosable. */

261+ private fun submitFlush(task: () -> Unit, label: String) {

262+ if (flushExecutor.isShutdown) {

263+ Log.w("DraftStore", "Dropping flush '$label': executor is shut down")

264+ return

265+ }

266+ runCatching { flushExecutor.execute { task() } }

267+ .onFailure { Log.w("DraftStore", "Failed to submit flush '$label'", it) }

268+ }

269+

270+ private companion object {

271+ /** Key prefix distinguishing persisted follow-ups from plain drafts in the shared

272+ * prefs file. The leading/trailing spaces can't collide with a real opencode session

273+ * id (which are non-blank, space-free tokens like "ses_..."). */

274+ const val FOLLOWUP_PREFIX = " followup "

275+ }

276+

277+ /** Shut down the background flush executor. Call from AppContainer.shutdown(). */

278+ open fun shutdown() {

279+ flushExecutor.shutdown()

280+ // Await pending flushDraft writes so drafts aren't lost if the process exits

281+ // immediately after shutdown (e.g. ANR-triggered process kill). Loop until the

282+ // executor is truly idle (or 5s elapses) rather than a single 2s wait: a slow disk

283+ // with a deep queue of keystroke-triggered flushes can exceed 2s, and dropping the

284+ // tail would lose the user's most recent edits. The JVM shutdown hook's own deadline

285+ // is the hard limit; this loop just gives the executor the best chance to drain.

286+ var waitedMs = 0L

287+ while (waitedMs < 5000L) {

288+ if (flushExecutor.isTerminated) break

289+ runCatching {

290+ flushExecutor.awaitTermination(500, java.util.concurrent.TimeUnit.MILLISECONDS)

291+ }

292+ waitedMs += 500L

293+ }

294+ }

295+}

app/src/main/java/soy/iko/opencode/data/repo/ErrorKind.ktnew file+81

@@ -0,0 +1,81 @@

1+package soy.iko.opencode.data.repo

2+

3+import io.ktor.client.plugins.ClientRequestException

4+import io.ktor.client.plugins.HttpRequestTimeoutException

5+import io.ktor.client.plugins.RedirectResponseException

6+import io.ktor.client.plugins.ResponseException

7+import io.ktor.client.plugins.ServerResponseException

8+import java.io.IOException

9+import java.net.ConnectException

10+import java.net.SocketTimeoutException

11+import java.net.UnknownHostException

12+

13+/**

14+ * User-facing categories for a thrown error. Extracted so the classification logic is

15+ * unit-testable without an Android [android.content.Context] (the mapping from a kind

16+ * to a localized string lives in [friendlyError]).

17+ */

18+enum class ErrorKind {

19+ /** Server host could not be resolved / connection refused. */

20+ NOT_REACHABLE,

21+

22+ /** Connect or read timed out. */

23+ TIMEOUT,

24+

25+ /** Server returned a 5xx response. */

26+ SERVER,

27+

28+ /** Server returned a 4xx response (auth, not-found, etc.). */

29+ CLIENT,

30+

31+ /** Any other network-level I/O failure. */

32+ NETWORK,

33+

34+ /** Anything that isn't network-related. */

35+ UNKNOWN,

36+}

37+

38+/**

39+ * Classify a throwable into an [ErrorKind] by inspecting concrete exception types rather

40+ * than string-matching class names. Unwraps [cause] chains so an exception surface-wrapped

41+ * by a library still classifies correctly.

42+ */

43+fun classifyError(t: Throwable): ErrorKind {

44+ var current: Throwable? = t

45+ // Walk a bounded cause chain so wrappers (e.g. an IllegalStateException around an

46+ // IOException) still classify by their root.

47+ var hops = 0

48+ while (current != null && hops < 8) {

49+ when (current) {

50+ is UnknownHostException, is ConnectException -> return ErrorKind.NOT_REACHABLE

51+ is SocketTimeoutException, is HttpRequestTimeoutException ->

52+ return ErrorKind.TIMEOUT

53+ is ServerResponseException -> return ErrorKind.SERVER

54+ // RedirectResponseException extends ClientRequestException, so it must be checked

55+ // first: a 3xx response is semantically distinct from a 4xx, and matching the

56+ // parent class first would make this branch unreachable dead code.

57+ is RedirectResponseException -> return ErrorKind.CLIENT

58+ is ClientRequestException -> return ErrorKind.CLIENT

59+ is IOException -> return ErrorKind.NETWORK

60+ else -> {

61+ // Any other ResponseException (unrecognized status family).

62+ if (current is ResponseException) return ErrorKind.SERVER

63+ }

64+ }

65+ current = current.cause

66+ hops++

67+ }

68+ return ErrorKind.UNKNOWN

69+}

70+

71+/** The HTTP status code carried by a client/server error, if any. */

72+fun responseStatusCode(t: Throwable): Int? {

73+ var current: Throwable? = t

74+ var hops = 0

75+ while (current != null && hops < 8) {

76+ if (current is ResponseException) return current.response.status.value

77+ current = current.cause

78+ hops++

79+ }

80+ return null

81+}

app/src/main/java/soy/iko/opencode/data/repo/FileBrowserPrefs.ktnew file+90

@@ -0,0 +1,90 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import androidx.datastore.preferences.core.booleanPreferencesKey

5+import androidx.datastore.preferences.core.edit

6+import androidx.datastore.preferences.core.stringPreferencesKey

7+import androidx.datastore.preferences.preferencesDataStore

8+import kotlinx.coroutines.flow.Flow

9+import kotlinx.coroutines.flow.flowOf

10+import kotlinx.coroutines.flow.map

11+

12+private val Context.fileBrowserPrefsDataStore by preferencesDataStore(name = "file_browser_prefs")

13+

14+/** Sort axis for the file-browser directory listing. Name is always available; Size/Modified

15+ * depend on the server emitting size/mtime (otherwise they sort nulls to the bottom). */

16+enum class FileSortKey { NAME, SIZE, MODIFIED }

17+

18+/**

19+ * Persisted file-browser display prefs (folders-first, show-hidden, sort key + direction,

20+ * changed-only filter) so a user who prefers size-sort or hidden-files-visible keeps it

21+ * across restarts, not just rotation.

22+ *

23+ * `open` with a `protected` no-arg constructor so tests can subclass and override the flows

24+ * without a real DataStore (mirrors the other stores). The flow accessors are getters (not

25+ * eager initializers) and null-guard the context so the test constructor never touches disk.

26+ */

27+@Suppress("TooManyFunctions")

28+open class FileBrowserPrefs private constructor(

29+ private val appContext: Context?,

30+ @Suppress("unused") private val testMode: Boolean,

31+) {

32+ constructor(context: Context) : this(context.applicationContext, false)

33+ protected constructor() : this(null, true)

34+

35+ private val foldersFirstKey = booleanPreferencesKey("folders_first")

36+ private val showHiddenKey = booleanPreferencesKey("show_hidden")

37+ private val sortKeyPref = stringPreferencesKey("sort_key")

38+ private val sortDescKey = booleanPreferencesKey("sort_desc")

39+ private val changedOnlyKey = booleanPreferencesKey("changed_only")

40+

41+ // Folders-first is the most useful default; the toggle flips between folders-first name

42+ // sort and the server's raw order.

43+ open val foldersFirst: Flow<Boolean>

44+ get() = appContext?.fileBrowserPrefsDataStore?.data?.map { it[foldersFirstKey] ?: true }

45+ ?: flowOf(true)

46+

47+ // Default off so the listing isn't cluttered with dotfiles; the user reveals .env / .git

48+ // / .opencode on demand.

49+ open val showHidden: Flow<Boolean>

50+ get() = appContext?.fileBrowserPrefsDataStore?.data?.map { it[showHiddenKey] ?: false }

51+ ?: flowOf(false)

52+

53+ // Stored as the enum name; an unknown value falls back to NAME (forward-compatible with a

54+ // future rename/removal of an enum entry).

55+ open val sortKey: Flow<FileSortKey>

56+ get() = appContext?.fileBrowserPrefsDataStore?.data?.map { prefs ->

57+ runCatching { FileSortKey.valueOf(prefs[sortKeyPref] ?: FileSortKey.NAME.name) }

58+ .getOrDefault(FileSortKey.NAME)

59+ } ?: flowOf(FileSortKey.NAME)

60+

61+ open val sortDesc: Flow<Boolean>

62+ get() = appContext?.fileBrowserPrefsDataStore?.data?.map { it[sortDescKey] ?: false }

63+ ?: flowOf(false)

64+

65+ // Default off: the changed-only filter narrows the listing to git-tracked changes, which is

66+ // useful when reviewing a diff but not the default browsing view.

67+ open val changedOnly: Flow<Boolean>

68+ get() = appContext?.fileBrowserPrefsDataStore?.data?.map { it[changedOnlyKey] ?: false }

69+ ?: flowOf(false)

70+

71+ open suspend fun setFoldersFirst(value: Boolean) {

72+ appContext?.fileBrowserPrefsDataStore?.edit { it[foldersFirstKey] = value }

73+ }

74+

75+ open suspend fun setShowHidden(value: Boolean) {

76+ appContext?.fileBrowserPrefsDataStore?.edit { it[showHiddenKey] = value }

77+ }

78+

79+ open suspend fun setSortKey(key: FileSortKey) {

80+ appContext?.fileBrowserPrefsDataStore?.edit { it[sortKeyPref] = key.name }

81+ }

82+

83+ open suspend fun setSortDesc(value: Boolean) {

84+ appContext?.fileBrowserPrefsDataStore?.edit { it[sortDescKey] = value }

85+ }

86+

87+ open suspend fun setChangedOnly(value: Boolean) {

88+ appContext?.fileBrowserPrefsDataStore?.edit { it[changedOnlyKey] = value }

89+ }

90+}

app/src/main/java/soy/iko/opencode/data/repo/MessageCacheStore.ktnew file+151

@@ -0,0 +1,151 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import android.util.Log

5+import kotlinx.coroutines.Dispatchers

6+import kotlinx.coroutines.sync.Mutex

7+import kotlinx.coroutines.sync.withLock

8+import kotlinx.coroutines.withContext

9+import kotlinx.serialization.builtins.ListSerializer

10+import soy.iko.opencode.data.model.MessageWithParts

11+import soy.iko.opencode.data.network.OpencodeJson

12+import soy.iko.opencode.util.runCatchingCancellable

13+import java.io.File

14+

15+/**

16+ * On-disk cache of a session's reduced message list, so a conversation shows instantly on

17+ * open (and remains readable while offline / before the network responds) instead of a blank

18+ * screen until `GET /session/:id/message` returns.

19+ *

20+ * One JSON file per session under filesDir, encoded with [OpencodeJson] so the same sealed

21+ * polymorphism used on the wire round-trips (unknown parts/messages are concrete

22+ * `__unknown` variants, so they encode too). Every operation is best-effort — a cache

23+ * miss or a write failure just falls back to the network — so problems never surface to

24+ * the user. No annotation processing (Room/KSP) per the project's manual-DI convention.

25+ */

26+open class MessageCacheStore private constructor(

27+ private val appContext: Context?,

28+ @Suppress("unused") private val testMode: Boolean,

29+) {

30+ constructor(context: Context) : this(context.applicationContext, false)

31+ protected constructor() : this(null, true)

32+

33+ private val serializer = ListSerializer(MessageWithParts.serializer())

34+

35+ /** Session ids are validated tokens upstream, but sanitize anyway so a stray id can't

36+ * escape the directory. */

37+ private val idRegex = Regex("[^A-Za-z0-9_-]")

38+

39+ private val dir: File? by lazy {

40+ appContext?.let { File(it.filesDir, "message_cache").apply { mkdirs() } }

41+ }

42+

43+ /** Per-profile subdirectory: two servers with a colliding session id must not share a cache

44+ * file, so entries are namespaced by profile id under [dir]. */

45+ private fun profileDir(profileId: String): File? =

46+ dir?.let { File(it, idRegex.replace(profileId, "_")).apply { mkdirs() } }

47+

48+ private fun fileFor(profileId: String, sessionId: String): File? =

49+ profileDir(profileId)?.let { File(it, idRegex.replace(sessionId, "_") + ".json") }

50+

51+ /** Per-session write lock so concurrent save/remove/load on the same file (e.g. both

52+ * panes of two-pane mode saving the same session, or a save racing a delete's remove)

53+ * can't tear or half-write the cache file. Keyed by session id; the map grows only with

54+ * the number of distinct sessions touched, and each [Mutex] is a few bytes. */

55+ private val locks = java.util.concurrent.ConcurrentHashMap<String, Mutex>()

56+ private fun lockFor(sessionId: String): Mutex = locks.getOrPut(sessionId) { Mutex() }

57+

58+ /** Sessions whose cache file has been removed by [remove]. A teardown flush of an

59+ * observer (CacheWriter.flushOnTeardown) runs under NonCancellable and can race with

60+ * remove(): both serialize on [lockFor], but their relative order is nondeterministic.

61+ * If the flush's save lands after remove, it re-creates the deleted session's cache

62+ * file, defeating the deletion (a privacy/disk-leak with no background cleanup). The

63+ * tombstone lets a post-remove save detect the deletion and skip. Keyed by

64+ * "$profileId/$sessionId" — a bare sessionId would suppress a *different* server's

65+ * saves if two servers share a colliding session id (the very case the per-profile

66+ * namespacing at [profileDir] exists to defend against). Cleared by [load] so

67+ * re-opening a session re-enables saving. Capped at [NetworkConfig.maxMessageCacheTombstones]

68+ * entries (see [remove]) to prevent unbounded growth across many deletions. */

69+ private val tombstones: MutableSet<String> =

70+ java.util.Collections.newSetFromMap(java.util.concurrent.ConcurrentHashMap())

71+

72+ private fun tombstoneKey(profileId: String, sessionId: String): String = "$profileId/$sessionId"

73+

74+ /** Load the cached messages for [sessionId] under [profileId], or empty if none / unreadable. */

75+ open suspend fun load(profileId: String, sessionId: String): List<MessageWithParts> = lockFor(sessionId).withLock {

76+ // Re-opening a session re-enables saving: clear any tombstone so a fresh conversation

77+ // write isn't suppressed by a prior deletion of the same (reused) id.

78+ tombstones.remove(tombstoneKey(profileId, sessionId))

79+ withContext(Dispatchers.IO) {

80+ val file = fileFor(profileId, sessionId)?.takeIf { it.exists() } ?: return@withContext emptyList()

81+ runCatchingCancellable { OpencodeJson.decodeFromString(serializer, file.readText()) }

82+ .getOrDefault(emptyList())

83+ }

84+ }

85+

86+ /** Persist [messages] for [sessionId] under [profileId] (an empty list deletes the file). */

87+ open suspend fun save(profileId: String, sessionId: String, messages: List<MessageWithParts>): Unit = lockFor(sessionId).withLock {

88+ // Skip if this session was deleted since the observer started: a teardown flush racing

89+ // after remove() must not re-create the file. (Held under the same per-session lock as

90+ // remove, so the tombstone is visible to a save that lost the race.)

91+ if (tombstoneKey(profileId, sessionId) in tombstones) return@withLock

92+ withContext(Dispatchers.IO) {

93+ val file = fileFor(profileId, sessionId) ?: return@withContext

94+ runCatchingCancellable {

95+ if (messages.isEmpty()) file.delete()

96+ else {

97+ // FIX: write atomically (temp file + rename) like RecentSessionsStore so a

98+ // process kill mid-write can't leave a truncated file that fails to decode,

99+ // wiping the cached conversation on the next open.

100+ val encoded = OpencodeJson.encodeToString(serializer, messages)

101+ val tmp = File(file.parentFile, file.name + ".tmp")

102+ tmp.writeText(encoded)

103+ if (!tmp.renameTo(file)) {

104+ // try/finally so a throw from file.writeText (disk full, permission) still

105+ // cleans up tmp — otherwise *.tmp files accumulate across failed writes.

106+ try {

107+ file.writeText(encoded)

108+ } finally {

109+ tmp.delete()

110+ }

111+ }

112+ }

113+ }.onFailure { Log.w("MessageCacheStore", "Failed to cache messages for $sessionId", it) }

114+ Unit

115+ }

116+ }

117+

118+ /** Remove a session's cached messages (call on deletion). Deletes only the calling

119+ * profile's cache file — iterating every profile namespace would nuke a *different*

120+ * server's cache for a colliding (but distinct) session id, the very case per-profile

121+ * namespacing exists to defend against. The per-session lock is intentionally NOT

122+ * evicted — a concurrent teardown save() for this id must serialize against the same

123+ * [Mutex] instance, and the map is bounded by the number of distinct sessions touched.

124+ * [profileId] namespaces the tombstone so a delete on one server doesn't suppress another

125+ * server's saves for a colliding session id. The back-compat flat file (pre-namespacing)

126+ * is also cleared since it carries no profile namespace. */

127+ open suspend fun remove(profileId: String, sessionId: String) {

128+ lockFor(sessionId).withLock {

129+ // Set the tombstone before deleting so a concurrent/loser save sees it and skips,

130+ // instead of re-creating the file we're about to delete.

131+ tombstones.add(tombstoneKey(profileId, sessionId))

132+ // Cap the tombstone set so it doesn't grow unbounded across many session deletions.

133+ // Tombstones only protect against a racing teardown flush (which resolves within

134+ // seconds), so stale entries are useless. Clearing wholesale is safe because no

135+ // racing flush can still be alive for a session deleted long ago.

136+ if (tombstones.size > soy.iko.opencode.data.network.NetworkConfig.maxMessageCacheTombstones) {

137+ tombstones.clear()

138+ tombstones.add(tombstoneKey(profileId, sessionId))

139+ }

140+ withContext(Dispatchers.IO) {

141+ runCatchingCancellable {

142+ val name = idRegex.replace(sessionId, "_") + ".json"

143+ profileDir(profileId)?.let { File(it, name).delete() }

144+ // Back-compat: pre-namespacing caches were written flat under [dir].

145+ dir?.let { File(it, name).delete() }

146+ }

147+ Unit

148+ }

149+ }

150+ }

151+}

app/src/main/java/soy/iko/opencode/data/repo/OutboxStore.ktnew file+171

@@ -0,0 +1,171 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import android.util.Log

5+import kotlinx.coroutines.Dispatchers

6+import kotlinx.coroutines.flow.MutableStateFlow

7+import kotlinx.coroutines.flow.StateFlow

8+import kotlinx.coroutines.flow.asStateFlow

9+import kotlinx.coroutines.sync.Mutex

10+import kotlinx.coroutines.sync.withLock

11+import kotlinx.coroutines.withContext

12+import kotlinx.serialization.Serializable

13+import kotlinx.serialization.decodeFromString

14+import kotlinx.serialization.encodeToString

15+import kotlinx.serialization.json.Json

16+import soy.iko.opencode.data.model.ModelRef

17+import soy.iko.opencode.util.runCatchingCancellable

18+import java.io.File

19+

20+/**

21+ * One prompt composed while offline (or with no active connection), queued to send when

22+ * connectivity returns. Tagged with the [profileId] it was composed for so a reconnect to a

23+ * *different* server doesn't misfire it against a session id that only exists on the

24+ * original server. [attachments] carry their self-contained base64 data URLs, so a queued

25+ * image survives a process restart just like a staged attachment.

26+ */

27+@Serializable

28+data class OutboxMessage(

29+ val id: String,

30+ val profileId: String,

31+ val sessionId: String,

32+ val text: String,

33+ val attachments: List<PersistedAttachment> = emptyList(),

34+ val model: ModelRef? = null,

35+ val agent: String? = null,

36+ val createdAt: Long,

37+)

38+

39+/**

40+ * A persisted send-queue: prompts the user composed while disconnected, flushed on

41+ * reconnect (see [soy.iko.opencode.di.AppContainer.observeOutbox]). Backed by one JSON file

42+ * under filesDir (not SharedPreferences) because a queued attachment's base64 payload can be

43+ * several megabytes. The in-memory [messages] StateFlow is the source of truth the UI and the

44+ * flusher observe; disk is written through under a mutex on every mutation.

45+ */

46+open class OutboxStore private constructor(

47+ private val appContext: Context?,

48+ @Suppress("unused") private val testMode: Boolean,

49+) {

50+ constructor(context: Context) : this(context.applicationContext, false)

51+ protected constructor() : this(null, true)

52+

53+ private val json = Json { ignoreUnknownKeys = true; encodeDefaults = true }

54+ private val ioMutex = Mutex()

55+

56+ private val _messages = MutableStateFlow<List<OutboxMessage>>(emptyList())

57+ /** All queued messages across sessions/servers, in enqueue order. */

58+ open val messages: StateFlow<List<OutboxMessage>> = _messages.asStateFlow()

59+

60+ /** Set once the on-disk queue has been read into [_messages] (under [ioMutex]). Until this

61+ * is true, a [mutate] must read disk first — otherwise a mutation that beats [load] would

62+ * persist from an empty in-memory snapshot and overwrite (or, for a removal, delete) the

63+ * persisted queue, losing every message the user composed offline in a previous run. */

64+ private var loaded = false

65+

66+ private val file: File? by lazy {

67+ appContext?.let { File(it.filesDir, "outbox.json") }

68+ }

69+

70+ /** Read the persisted queue into [messages]. Call once at startup. Idempotent. */

71+ open suspend fun load() {

72+ ioMutex.withLock { loadLocked() }

73+ }

74+

75+ /** Read the on-disk queue into memory. MUST be called while holding [ioMutex]. Idempotent

76+ * (guarded by [loaded]) so a [mutate] that arrives before [load] can call it to guarantee

77+ * disk is read before any write, then a later [load] is a no-op. Returns true once the queue

78+ * is in memory (or the file is genuinely absent), false if an existing file couldn't be

79+ * read — the caller MUST NOT persist on false or it would overwrite the still-valid queue. */

80+ private suspend fun loadLocked(): Boolean {

81+ if (loaded) return true

82+ val f = file?.takeIf { it.exists() }

83+ if (f == null) {

84+ // A genuinely absent file is a normal empty queue: mark loaded so mutations proceed.

85+ loaded = true

86+ return true

87+ }

88+ // Only mark [loaded] AFTER a successful read. A transient read/decode failure (or a

89+ // cancelled read) of an *existing* file must not clobber the still-valid on-disk queue:

90+ // leave loaded=false and report failure so the caller skips its write and a later

91+ // mutate/load retries the read, instead of persisting an empty snapshot over the user's

92+ // offline-composed messages.

93+ val diskList = withContext(Dispatchers.IO) {

94+ runCatchingCancellable { json.decodeFromString<List<OutboxMessage>>(f.readText()) }

95+ }.getOrElse { return false }

96+ // Don't clobber items enqueued while the load was in flight: merge by id, keeping

97+ // the in-memory version on conflict (it's newer).

98+ if (_messages.value.isEmpty()) {

99+ _messages.value = diskList.sortedBy { it.createdAt }

100+ } else {

101+ val known = _messages.value.mapTo(mutableSetOf()) { it.id }

102+ val merged = (diskList.filter { it.id !in known } + _messages.value).sortedBy { it.createdAt }

103+ _messages.value = merged

104+ // The merge reconciled items enqueued while this load was in flight with the

105+ // on-disk set; write the merged set back so a later process kill can't drop the

106+ // raced enqueue. persist() doesn't take ioMutex, so this won't deadlock.

107+ persist(merged)

108+ }

109+ loaded = true

110+ return true

111+ }

112+

113+ open suspend fun enqueue(message: OutboxMessage) = mutate { current ->

114+ current.filterNot { it.id == message.id } + message

115+ }

116+

117+ open suspend fun remove(id: String) = mutate { current -> current.filterNot { it.id == id } }

118+

119+ /** Remove every queued message for [sessionId] (e.g. the user discarded them, or the

120+ * session was deleted). */

121+ open suspend fun removeForSession(sessionId: String) =

122+ mutate { current -> current.filterNot { it.sessionId == sessionId } }

123+

124+ private suspend fun mutate(transform: (List<OutboxMessage>) -> List<OutboxMessage>) {

125+ // Persist *under* the lock so concurrent mutations (e.g. the flusher removing sent

126+ // messages while the UI enqueues a new one) can't race their disk writes: without

127+ // this, the older snapshot could land last and drop/resurrect a queued prompt, or two

128+ // overlapping writeText/delete calls could tear the file. The lock serializes both the

129+ // in-memory update and the write, guaranteeing on-disk order matches memory order.

130+ ioMutex.withLock {

131+ // Ensure the persisted queue has been read into memory before mutating: a mutation

132+ // that races ahead of load() would otherwise transform an empty in-memory snapshot

133+ // and persist()/delete() the file, destroying messages queued in a previous run.

134+ val loadedOk = loadLocked()

135+ val updated = transform(_messages.value).sortedBy { it.createdAt }

136+ _messages.value = updated

137+ // Only write when the existing on-disk queue was actually read. If the read of an

138+ // existing file failed (loadedOk == false), _messages is missing whatever it held, so

139+ // persisting `updated` would overwrite the still-valid file with an incomplete

140+ // snapshot — losing the user's prior offline-composed messages. Keep the transform in

141+ // memory (so the UI reflects the new item) but leave disk untouched; loaded stays

142+ // false, so the next mutate/load retries the read and then merges + persists.

143+ if (loadedOk) persist(updated)

144+ }

145+ }

146+

147+ private suspend fun persist(list: List<OutboxMessage>) {

148+ val f = file ?: return

149+ withContext(Dispatchers.IO) {

150+ runCatchingCancellable {

151+ if (list.isEmpty()) {

152+ f.delete()

153+ } else {

154+ // FIX: write atomically (temp file + rename) like RecentSessionsStore so a

155+ // process kill mid-write can't leave a truncated file — a torn file fails to

156+ // decode and load() would then drop ALL queued offline messages.

157+ val encoded = json.encodeToString(list)

158+ val tmp = File(f.parentFile, f.name + ".tmp")

159+ tmp.writeText(encoded)

160+ if (!tmp.renameTo(f)) {

161+ try {

162+ f.writeText(encoded)

163+ } finally {

164+ tmp.delete()

165+ }

166+ }

167+ }

168+ }.onFailure { Log.w("OutboxStore", "Failed to persist outbox", it) }

169+ }

170+ }

171+}

app/src/main/java/soy/iko/opencode/data/repo/ProfileStore.ktnew file+285

@@ -0,0 +1,285 @@

1+// Jetpack Security (androidx.security:security-crypto) was deprecated wholesale in 1.1.0 with

2+// no first-party drop-in replacement; we intentionally keep using EncryptedSharedPreferences /

3+// MasterKey for the encrypted password store (on-disk-compatible, still functional). Suppress

4+// the expected deprecation warnings here so the build log stays clean until a future migration.

5+@file:Suppress("DEPRECATION")

6+

7+package soy.iko.opencode.data.repo

8+

9+import android.content.Context

10+import android.content.SharedPreferences

11+import android.util.Log

12+import androidx.datastore.preferences.core.edit

13+import androidx.datastore.preferences.core.stringPreferencesKey

14+import androidx.datastore.preferences.preferencesDataStore

15+import androidx.security.crypto.EncryptedSharedPreferences

16+import androidx.security.crypto.MasterKey

17+import soy.iko.opencode.data.model.ServerProfile

18+import soy.iko.opencode.data.network.OpencodeJson

19+import kotlinx.coroutines.Dispatchers

20+import kotlinx.coroutines.sync.Mutex

21+import kotlinx.coroutines.sync.withLock

22+import kotlinx.coroutines.flow.Flow

23+import kotlinx.coroutines.flow.flowOn

24+import kotlinx.coroutines.flow.map

25+import kotlinx.coroutines.withContext

26+import kotlinx.serialization.Serializable

27+import kotlinx.serialization.builtins.ListSerializer

28+

29+private val Context.dataStore by preferencesDataStore(name = "server_profiles")

30+

31+/**

32+ * Persists server profiles. Non-secret fields go to DataStore (as a JSON list);

33+ * the Basic-auth password is stored separately in EncryptedSharedPreferences, keyed

34+ * by profile id, and merged back in on read.

35+ */

36+open class ProfileStore private constructor(

37+ private val appContext: Context?,

38+ @Suppress("unused") private val testMode: Boolean,

39+) {

40+ constructor(context: Context) : this(context.applicationContext, false)

41+ protected constructor() : this(null, true)

42+

43+ private val profilesKey = stringPreferencesKey("profiles_json")

44+

45+ /** Guards [migrateFallbackPasswords] so it runs at most once per process, not on every

46+ * DataStore emission. The mutex serializes concurrent callers so a second collector waits

47+ * for the migration's writes to land (rather than skipping ahead and reading empty secure

48+ * prefs mid-migration); [migrationDone] is only set true *after* the writes complete. */

49+ private val migrationMutex = Mutex()

50+ @Volatile private var migrationDone = false

51+

52+ private val securePrefs: SharedPreferences? by lazy {

53+ val ctx = appContext ?: return@lazy null

54+ runCatching {

55+ val masterKey = MasterKey.Builder(ctx)

56+ .setKeyScheme(MasterKey.KeyScheme.AES256_GCM)

57+ .build()

58+ EncryptedSharedPreferences.create(

59+ ctx,

60+ "server_secrets",

61+ masterKey,

62+ EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,

63+ EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM,

64+ )

65+ }.getOrElse {

66+ Log.e("ProfileStore", "Encrypted prefs unavailable; passwords will not be persisted", it)

67+ null

68+ }

69+ }

70+

71+ /** True when EncryptedSharedPreferences could not be initialized. */

72+ open val securePrefsUnavailable: Boolean get() = securePrefs == null

73+

74+ /** Plaintext fallback used only when encrypted prefs are unavailable, so the user

75+ * can still connect — but passwords won't survive an app reinstall. */

76+ private val fallbackPrefs: SharedPreferences by lazy {

77+ appContext!!.getSharedPreferences("server_secrets_fallback", Context.MODE_PRIVATE)

78+ }

79+

80+ private fun prefsForPasswords(): SharedPreferences =

81+ securePrefs ?: fallbackPrefs

82+

83+ /** Migrate any plaintext passwords from the fallback prefs to secure prefs,

84+ * then clear the fallback. Also reaps orphaned password keys from BOTH stores whose

85+ * `pw_<id>` matches no profile in [knownProfileIds] — a prior [delete] that raced a

86+ * process death (DataStore write landed, password removal didn't) would otherwise leave

87+ * the encrypted password stranded in `server_secrets` forever, since nothing else cleans

88+ * it up. Runs at most once per process — subsequent calls are no-ops — so DataStore

89+ * re-emissions don't repeatedly scan SharedPreferences. */

90+ private suspend fun migrateFallbackPasswords(knownProfileIds: Set<String>) {

91+ if (migrationDone) return

92+ migrationMutex.withLock {

93+ // Re-check inside the lock: a concurrent caller may have completed the migration

94+ // while we were waiting. Serializing here (rather than a bare compareAndSet that

95+ // marks done before doing the work) ensures a second collector doesn't read the

96+ // secure store before the first caller's write has populated it.

97+ if (migrationDone) return

98+ val secure = securePrefs

99+ withContext(Dispatchers.IO) {

100+ val fallbackKeys = fallbackPrefs.all.keys.filter { it.startsWith("pw_") }

101+ if (secure != null && fallbackKeys.isNotEmpty()) {

102+ // Write passwords to the secure store FIRST, then remove them from the

103+ // plaintext fallback. SharedPreferences.apply() persists to disk

104+ // asynchronously, so removing from fallback before the secure batch lands

105+ // could lose the password if the process dies between the two writes.

106+ // Writing secure first makes the worst case a harmless duplicate (both

107+ // stores hold it; the migration is idempotent) rather than data loss.

108+ secure.edit().apply {

109+ for (key in fallbackKeys) {

110+ val pw = fallbackPrefs.getString(key, null) ?: continue

111+ putString(key, pw)

112+ }

113+ }.apply()

114+ fallbackPrefs.edit().apply {

115+ for (key in fallbackKeys) remove(key)

116+ }.apply()

117+ }

118+ // Reap orphaned password keys: a prior delete whose password removal raced a

119+ // process death leaves the encrypted entry stranded forever (nothing else

120+ // cleans it up, and the id may never be reused). Keyed by pw_<id>, so an orphan

121+ // is any key whose id isn't in the current profile set. Reap from both stores

122+ // since the fallback is written alongside secure in save().

123+ reapOrphanPasswords(secure, fallbackPrefs, knownProfileIds)

124+ }

125+ // Only mark done once the writes are in the secure store's in-memory cache (apply()

126+ // updates it synchronously), so the next collector past the mutex reads real values.

127+ migrationDone = true

128+ }

129+ }

130+

131+ /** Remove `pw_<id>` keys from [secure] and [fallback] whose id matches no profile in

132+ * [knownProfileIds]. A prior [delete] whose password removal raced a process death leaves

133+ * the encrypted password stranded forever; this sweep (called once per process from

134+ * [migrateFallbackPasswords]) reaps them so the secure/fallback stores don't accumulate

135+ * orphaned credentials for deleted profiles. No-op when a store is null or has no orphans. */

136+ private fun reapOrphanPasswords(

137+ secure: SharedPreferences?,

138+ fallback: SharedPreferences,

139+ knownProfileIds: Set<String>,

140+ ) {

141+ val secureOrphans = secure?.all?.keys

142+ ?.filter { it.startsWith("pw_") && it.removePrefix("pw_") !in knownProfileIds }

143+ ?: emptyList()

144+ if (secureOrphans.isNotEmpty()) {

145+ secure!!.edit().apply { secureOrphans.forEach { remove(it) } }.apply()

146+ }

147+ val fallbackOrphans = fallback.all.keys

148+ .filter { it.startsWith("pw_") && it.removePrefix("pw_") !in knownProfileIds }

149+ if (fallbackOrphans.isNotEmpty()) {

150+ fallback.edit().apply { fallbackOrphans.forEach { remove(it) } }.apply()

151+ }

152+ }

153+

154+ /** Stored shape on DataStore (everything except the secret password). */

155+ @Serializable

156+ private data class StoredProfile(

157+ val id: String,

158+ val label: String,

159+ val baseUrl: String,

160+ val username: String? = null,

161+ val lastUsed: Long = 0,

162+ // Non-secret TLS options; default to prior behavior for profiles saved before these

163+ // fields existed (deserialization uses these defaults for missing keys).

164+ val requireHttps: Boolean = false,

165+ val certPin: String? = null,

166+ )

167+

168+ open val profiles: Flow<List<ServerProfile>> = appContext?.dataStore?.data?.map { prefs ->

169+ // Decode the stored profiles first so the migration sweep can reap orphaned password

170+ // keys (whose pw_<id> matches no stored profile) in the same once-per-process pass.

171+ val json = prefs[profilesKey]

172+ val stored = json?.let {

173+ runCatching {

174+ OpencodeJson.decodeFromString(ListSerializer(StoredProfile.serializer()), it)

175+ }.onFailure { Log.w("ProfileStore", "Failed to decode stored profiles, ignoring", it) }

176+ .getOrDefault(emptyList())

177+ } ?: emptyList()

178+ // Migrate any orphaned plaintext passwords to secure prefs, and reap any secure-pref

179+ // password keys whose profile was deleted while the process was gone (see

180+ // [migrateFallbackPasswords] for the sweep rationale).

181+ migrateFallbackPasswords(stored.mapTo(mutableSetOf()) { it.id })

182+ val sorted = stored.sortedByDescending { it.lastUsed }

183+ // Batch all password lookups into a single IO dispatch instead of one

184+ // withContext round-trip per profile (N dispatches → 1). DataStore already

185+ // runs this map block on IO, but each passwordFor() call still pays the

186+ // suspend + redispatch overhead.

187+ val pwPrefs = prefsForPasswords()

188+ sorted.map { it.toProfile(pwPrefs) }

189+ }

190+ // The .map above runs in the *collector's* context, and every consumer collects on

191+ // viewModelScope (Main). Without this, kotlinx JSON decode + EncryptedSharedPreferences

192+ // AES decryption would run on the UI thread on each emission. flowOn moves that work to IO.

193+ ?.flowOn(Dispatchers.IO)

194+ ?: kotlinx.coroutines.flow.flowOf(emptyList())

195+

196+ private fun StoredProfile.toProfile(pwPrefs: SharedPreferences): ServerProfile {

197+ val pw = username?.let { pwPrefs.getString(passwordKey(id), null) }

198+ return ServerProfile(

199+ id = id,

200+ label = label,

201+ baseUrl = baseUrl,

202+ username = username,

203+ password = pw,

204+ lastUsed = lastUsed,

205+ requireHttps = requireHttps,

206+ certPin = certPin,

207+ )

208+ }

209+

210+ open suspend fun resolve(profile: ServerProfile): ServerProfile {

211+ val pw = if (profile.hasAuth) {

212+ withContext(Dispatchers.IO) { prefsForPasswords().getString(passwordKey(profile.id), null) }

213+ } else {

214+ null

215+ }

216+ return profile.copy(password = pw)

217+ }

218+

219+ open suspend fun save(profile: ServerProfile) {

220+ // Write the password first so that if the DataStore write fails, we're left

221+ // with an orphaned password (harmless, cleaned up on next save/delete) rather

222+ // than a profile with no password (which would break authentication).

223+ withContext(Dispatchers.IO) {

224+ prefsForPasswords().edit().apply {

225+ val pw = profile.password

226+ if (!profile.username.isNullOrBlank() && !pw.isNullOrEmpty()) {

227+ putString(passwordKey(profile.id), pw)

228+ } else {

229+ remove(passwordKey(profile.id))

230+ }

231+ }.apply()

232+ }

233+ appContext!!.dataStore.edit { prefs ->

234+ val current = prefs[profilesKey]?.let {

235+ runCatching { OpencodeJson.decodeFromString(ListSerializer(StoredProfile.serializer()), it) }

236+ .getOrDefault(emptyList())

237+ } ?: emptyList()

238+ // If the incoming profile has lastUsed=0 (e.g. ServerEditViewModel.save()

239+ // couldn't read the existing value due to a DataStore timeout), preserve

240+ // the existing nonzero lastUsed so saving an edit doesn't reset the

241+ // profile's sort position in the server list.

242+ val preservedLastUsed = if (profile.lastUsed == 0L) {

243+ current.firstOrNull { it.id == profile.id }?.lastUsed ?: 0L

244+ } else {

245+ profile.lastUsed

246+ }

247+ val stored = StoredProfile(

248+ id = profile.id,

249+ label = profile.label,

250+ baseUrl = profile.baseUrl,

251+ username = profile.username?.takeIf { it.isNotBlank() },

252+ lastUsed = preservedLastUsed,

253+ requireHttps = profile.requireHttps,

254+ certPin = profile.certPin?.takeIf { it.isNotBlank() },

255+ )

256+ val updated = current.filterNot { it.id == profile.id } + stored

257+ prefs[profilesKey] = OpencodeJson.encodeToString(ListSerializer(StoredProfile.serializer()), updated)

258+ }

259+ }

260+

261+ open suspend fun delete(id: String) {

262+ // Delete the profile from DataStore first, then the password. If the process

263+ // dies between the two, an orphaned password remains (harmless, cleaned up on

264+ // next save/delete) rather than a profile with no password.

265+ appContext!!.dataStore.edit { prefs ->

266+ val current = prefs[profilesKey]?.let {

267+ runCatching { OpencodeJson.decodeFromString(ListSerializer(StoredProfile.serializer()), it) }

268+ .getOrDefault(emptyList())

269+ } ?: emptyList()

270+ prefs[profilesKey] = OpencodeJson.encodeToString(

271+ ListSerializer(StoredProfile.serializer()),

272+ current.filterNot { it.id == id },

273+ )

274+ }

275+ // Clean up the password in both secure and fallback prefs so no orphaned

276+ // plaintext password lingers if secure prefs were temporarily unavailable.

277+ withContext(Dispatchers.IO) {

278+ val key = passwordKey(id)

279+ securePrefs?.edit()?.remove(key)?.apply()

280+ fallbackPrefs.edit().remove(key).apply()

281+ }

282+ }

283+

284+ private fun passwordKey(id: String) = "pw_$id"

285+}

app/src/main/java/soy/iko/opencode/data/repo/RecentModelsStore.ktnew file+80

@@ -0,0 +1,80 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import kotlinx.coroutines.flow.MutableStateFlow

5+import kotlinx.coroutines.flow.StateFlow

6+import kotlinx.coroutines.flow.asStateFlow

7+

8+/**

9+ * Persists the most recently picked models so the model picker can surface them as a

10+ * "Recent" section above the full catalog. Backed by SharedPreferences because the UI

11+ * needs the initial value synchronously and the list is tiny (≤ [MAX_ENTRIES]), mirroring

12+ * the low-stakes-persistence rationale of [SearchHistoryStore]. `open` with a `protected`

13+ * no-arg constructor so tests can subclass and override without a real Context.

14+ *

15+ * Entries are stored as `providerID\modelID` composite keys (the separator is chosen so it

16+ * can't collide with provider or model ids, which are URL/path-safe identifiers).

17+ */

18+open class RecentModelsStore private constructor(

19+ private val appContext: Context?,

20+ @Suppress("unused") private val testMode: Boolean,

21+) {

22+ constructor(context: Context) : this(context.applicationContext, false)

23+ protected constructor() : this(null, true)

24+

25+ private val prefs by lazy {

26+ appContext?.getSharedPreferences("recent_models", Context.MODE_PRIVATE)

27+ ?: error("No context — override methods in test subclass")

28+ }

29+

30+ private val _entries = MutableStateFlow<List<String>>(emptyList())

31+ open val entries: StateFlow<List<String>> = _entries.asStateFlow()

32+

33+ init {

34+ if (appContext != null) {

35+ _entries.value = runCatching {

36+ prefs.getString(KEY, null)

37+ ?.takeIf { it.isNotBlank() }

38+ ?.split(SEPARATOR)

39+ ?.filter { it.isNotBlank() }

40+ ?.take(MAX_ENTRIES)

41+ }.getOrDefault(emptyList()) ?: emptyList()

42+ }

43+ }

44+

45+ /** Insert [providerId]/[modelId] at the head of the recents, deduped and capped at

46+ * [MAX_ENTRIES]. Blank ids are ignored. */

47+ open fun add(providerId: String, modelId: String) {

48+ val p = providerId.trim()

49+ val m = modelId.trim()

50+ if (p.isBlank() || m.isBlank()) return

51+ val key = "$p$SEPARATOR$m"

52+ val updated = (listOf(key) + _entries.value.filter { it != key }).take(MAX_ENTRIES)

53+ _entries.value = updated

54+ runCatching {

55+ prefs.edit().putString(KEY, updated.joinToString(SEPARATOR)).apply()

56+ }

57+ }

58+

59+ /** Split a stored composite key back into its provider/model id pair. Returns null if

60+ * the entry is malformed (shouldn't happen, but a corrupt prefs value must never crash

61+ * the picker). */

62+ fun split(entry: String): Pair<String, String>? {

63+ val parts = entry.split(SEPARATOR)

64+ return if (parts.size == 2 && parts[0].isNotBlank() && parts[1].isNotBlank())

65+ parts[0] to parts[1] else null

66+ }

67+

68+ open fun clear() {

69+ _entries.value = emptyList()

70+ runCatching { prefs.edit().remove(KEY).apply() }

71+ }

72+

73+ private companion object {

74+ const val KEY = "models"

75+ // A newline can't appear in a provider/model id (they're URL/path-safe), so it's a

76+ // safe list separator that won't collide with id contents.

77+ const val SEPARATOR = "\n"

78+ const val MAX_ENTRIES = 5

79+ }

80+}

app/src/main/java/soy/iko/opencode/data/repo/RecentSessionsStore.ktnew file+100

@@ -0,0 +1,100 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import kotlinx.coroutines.Dispatchers

5+import kotlinx.coroutines.sync.Mutex

6+import kotlinx.coroutines.sync.withLock

7+import kotlinx.coroutines.withContext

8+import kotlinx.serialization.Serializable

9+import kotlinx.serialization.decodeFromString

10+import kotlinx.serialization.encodeToString

11+import kotlinx.serialization.json.Json

12+import soy.iko.opencode.util.runCatchingCancellable

13+import java.io.File

14+

15+/** A minimal session summary persisted for the home-screen widget and launcher shortcuts.

16+ * Carries the originating [profileId] so a widget tap routes back to the server that ran

17+ * the session even after the user has switched to a different connection — without it,

18+ * the session would open on whichever server is currently active and 404 or show empty. */

19+@Serializable

20+data class RecentSession(

21+ val id: String,

22+ val title: String,

23+ // Defaulted so a pre-profileId persisted file (from an older app version) still decodes:

24+ // the field is absent → default "" → the widget falls back to the active connection.

25+ val profileId: String = "",

26+)

27+

28+/**

29+ * Persists a short list of recent sessions to a small JSON file under filesDir so app-external

30+ * surfaces (the home-screen widget's [android.widget.RemoteViewsService] and the "Resume last"

31+ * launcher shortcut) can read them without a live connection or in-memory state. Both the app

32+ * and the widget's RemoteViews factory run in the same process, so a plain file is sufficient.

33+ */

34+object RecentSessionsStore {

35+

36+ private const val FILE = "recent_sessions.json"

37+ const val MAX = 8

38+

39+ private val json = Json { ignoreUnknownKeys = true }

40+

41+ /** Serializes concurrent [write]s. The synchronous [read] (called from the widget's

42+ * RemoteViewsService) can't take a suspend lock, so [write] instead swaps the file in

43+ * atomically via a temp-file rename — the reader always sees either the old or the new

44+ * complete file, never a half-written one. */

45+ private val writeMutex = Mutex()

46+

47+ private fun file(context: Context) = File(context.applicationContext.filesDir, FILE)

48+

49+ /** Synchronous read — safe to call from the widget factory (bounded, tiny file). */

50+ fun read(context: Context): List<RecentSession> {

51+ val f = file(context).takeIf { it.exists() } ?: return emptyList()

52+ return runCatching { json.decodeFromString<List<RecentSession>>(f.readText()) }

53+ .getOrDefault(emptyList())

54+ }

55+

56+ /** Persist [sessions] (capped to [MAX]); a no-op empty list writes an empty file. */

57+ suspend fun write(context: Context, sessions: List<RecentSession>) = withContext(Dispatchers.IO) {

58+ writeMutex.withLock {

59+ // runCatchingCancellable (not plain runCatching): this runs inside a coroutine, and

60+ // plain runCatching swallows CancellationException — if the caller is cancelled

61+ // mid-write, cancellation wouldn't propagate and the write could complete (or

62+ // partially complete) on a dying scope. Matches the AGENTS.md convention.

63+ runCatchingCancellable {

64+ val target = file(context)

65+ val encoded = json.encodeToString(sessions.take(MAX))

66+ val tmp = File(target.parentFile, "$FILE.tmp")

67+ tmp.writeText(encoded)

68+ // Atomic replace on POSIX filesystems (app's internal storage); the reader

69+ // never observes a torn file. renameTo can fail when the target exists on

70+ // some OEM filesystems — delete the target first so the rename is a pure

71+ // create. If that still fails, copy to a SECOND temp file and atomically

72+ // rename THAT to target — writing tmp.copyTo(target) directly would expose a

73+ // half-written target to a concurrent reader (read takes no mutex), breaking

74+ // the documented invariant. The second-rename leaves target either old or new,

75+ // never torn.

76+ if (!tmp.renameTo(target)) {

77+ target.delete()

78+ if (!tmp.renameTo(target)) {

79+ val tmp2 = File(target.parentFile, "$FILE.tmp2")

80+ tmp2.writeText(encoded)

81+ if (!tmp2.renameTo(target)) {

82+ // Truly last resort: some OEM filesystems reject even a create-rename.

83+ // Write directly to target, accepting a brief non-atomic window (a

84+ // concurrent reader could see a partially-written file). The previous

85+ // delete-then-rename here was worse: between the delete and the rename

86+ // a reader saw NO file (empty recents), and if the rename failed too,

87+ // target was left missing and tmp2 orphaned. writeText at least keeps

88+ // either the old or the new content visible, never a gap. Clean up

89+ // both temps afterwards.

90+ target.writeText(encoded)

91+ }

92+ tmp.delete()

93+ tmp2.delete()

94+ }

95+ }

96+ }

97+ Unit

98+ }

99+ }

100+}

app/src/main/java/soy/iko/opencode/data/repo/SearchHistoryStore.ktnew file+68

@@ -0,0 +1,68 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import kotlinx.coroutines.flow.MutableStateFlow

5+import kotlinx.coroutines.flow.StateFlow

6+import kotlinx.coroutines.flow.asStateFlow

7+import soy.iko.opencode.data.network.NetworkConfig

8+

9+/**

10+ * Persists the most recent unique global-search queries so the search screen can

11+ * surface them as suggestions. Backed by SharedPreferences because the UI needs the

12+ * initial value synchronously and the list is tiny (≤ [MAX_ENTRIES]), mirroring the

13+ * low-stakes-persistence rationale of [DraftStore]. `open` with a `protected`

14+ * no-arg constructor so tests can subclass and override without a real Context.

15+ */

16+open class SearchHistoryStore private constructor(

17+ private val appContext: Context?,

18+ @Suppress("unused") private val testMode: Boolean,

19+) {

20+ constructor(context: Context) : this(context.applicationContext, false)

21+ protected constructor() : this(null, true)

22+

23+ private val prefs by lazy {

24+ appContext?.getSharedPreferences("search_history", Context.MODE_PRIVATE)

25+ ?: error("No context — override methods in test subclass")

26+ }

27+

28+ private val _queries = MutableStateFlow<List<String>>(emptyList())

29+ open val queries: StateFlow<List<String>> = _queries.asStateFlow()

30+

31+ init {

32+ if (appContext != null) {

33+ _queries.value = runCatching {

34+ prefs.getString(KEY, null)

35+ ?.takeIf { it.isNotBlank() }

36+ ?.split(SEPARATOR)

37+ ?.filter { it.isNotBlank() }

38+ ?.take(MAX_ENTRIES)

39+ }.getOrDefault(emptyList()) ?: emptyList()

40+ }

41+ }

42+

43+ /** Insert [query] at the head of the history, deduped and capped at [MAX_ENTRIES].

44+ * Blank or sub-min-length queries are ignored so accidental empties and stray

45+ * keystrokes don't pollute the suggestions. */

46+ open fun add(query: String) {

47+ val trimmed = query.trim()

48+ if (trimmed.isBlank() || trimmed.length < NetworkConfig.minSearchQueryLength) return

49+ val updated = (listOf(trimmed) + _queries.value.filter { it != trimmed }).take(MAX_ENTRIES)

50+ _queries.value = updated

51+ runCatching {

52+ prefs.edit().putString(KEY, updated.joinToString(SEPARATOR)).apply()

53+ }

54+ }

55+

56+ open fun clear() {

57+ _queries.value = emptyList()

58+ runCatching { prefs.edit().remove(KEY).apply() }

59+ }

60+

61+ private companion object {

62+ const val KEY = "queries"

63+ // The search field is single-line, so a newline can't appear in a stored query

64+ // and is safe to use as the list separator.

65+ const val SEPARATOR = "\n"

66+ const val MAX_ENTRIES = 10

67+ }

68+}

app/src/main/java/soy/iko/opencode/data/repo/SessionPrefsStore.ktnew file+73

@@ -0,0 +1,73 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import androidx.datastore.preferences.core.edit

5+import androidx.datastore.preferences.core.stringSetPreferencesKey

6+import androidx.datastore.preferences.preferencesDataStore

7+import kotlinx.coroutines.flow.Flow

8+import kotlinx.coroutines.flow.flowOf

9+import kotlinx.coroutines.flow.map

10+

11+private val Context.sessionPrefsDataStore by preferencesDataStore(name = "session_prefs")

12+

13+/**

14+ * Local, per-session organization flags the opencode server doesn't track: **pinned**

15+ * (sorted to the top of the session list) and **archived** (hidden from the list unless the

16+ * user opts to show them). Keyed by opencode session id.

17+ *

18+ * `open` with a `protected` no-arg constructor so tests can subclass and override the flows

19+ * without a real DataStore (mirrors the other stores). The flow accessors are getters (not

20+ * eager initializers) and null-guard the context so the test constructor never touches disk.

21+ */

22+open class SessionPrefsStore private constructor(

23+ private val appContext: Context?,

24+ @Suppress("unused") private val testMode: Boolean,

25+) {

26+ constructor(context: Context) : this(context.applicationContext, false)

27+ protected constructor() : this(null, true)

28+

29+ private val pinnedKey = stringSetPreferencesKey("pinned")

30+ private val archivedKey = stringSetPreferencesKey("archived")

31+ private val mutedKey = stringSetPreferencesKey("muted")

32+

33+ open val pinned: Flow<Set<String>>

34+ get() = appContext?.sessionPrefsDataStore?.data?.map { it[pinnedKey] ?: emptySet() }

35+ ?: flowOf(emptySet())

36+

37+ open val archived: Flow<Set<String>>

38+ get() = appContext?.sessionPrefsDataStore?.data?.map { it[archivedKey] ?: emptySet() }

39+ ?: flowOf(emptySet())

40+

41+ /** Session ids the user has muted (suppress unread badge + completion notification). */

42+ open val muted: Flow<Set<String>>

43+ get() = appContext?.sessionPrefsDataStore?.data?.map { it[mutedKey] ?: emptySet() }

44+ ?: flowOf(emptySet())

45+

46+ open suspend fun setPinned(sessionId: String, pinned: Boolean) = toggle(pinnedKey, sessionId, pinned)

47+

48+ open suspend fun setArchived(sessionId: String, archived: Boolean) = toggle(archivedKey, sessionId, archived)

49+

50+ open suspend fun setMuted(sessionId: String, muted: Boolean) = toggle(mutedKey, sessionId, muted)

51+

52+ /** Drop a session from all sets — call on deletion so ids don't accumulate forever. */

53+ open suspend fun forget(sessionId: String) {

54+ val ctx = appContext ?: return

55+ ctx.sessionPrefsDataStore.edit { prefs ->

56+ prefs[pinnedKey] = (prefs[pinnedKey] ?: emptySet()) - sessionId

57+ prefs[archivedKey] = (prefs[archivedKey] ?: emptySet()) - sessionId

58+ prefs[mutedKey] = (prefs[mutedKey] ?: emptySet()) - sessionId

59+ }

60+ }

61+

62+ private suspend fun toggle(

63+ key: androidx.datastore.preferences.core.Preferences.Key<Set<String>>,

64+ sessionId: String,

65+ on: Boolean,

66+ ) {

67+ val ctx = appContext ?: return

68+ ctx.sessionPrefsDataStore.edit { prefs ->

69+ val current = prefs[key] ?: emptySet()

70+ prefs[key] = if (on) current + sessionId else current - sessionId

71+ }

72+ }

73+}

app/src/main/java/soy/iko/opencode/data/repo/SessionRepository.ktnew file+802

@@ -0,0 +1,802 @@

1+package soy.iko.opencode.data.repo

2+

3+import soy.iko.opencode.data.model.AssistantMessage

4+import soy.iko.opencode.data.model.BusEvent

5+import soy.iko.opencode.data.model.FilePromptPart

6+import soy.iko.opencode.data.model.MessageInfo

7+import soy.iko.opencode.data.model.MessagePartRemoved

8+import soy.iko.opencode.data.model.MessagePartUpdated

9+import soy.iko.opencode.data.model.MessageRemoved

10+import soy.iko.opencode.data.model.MessageUpdated

11+import soy.iko.opencode.data.model.MessageWithParts

12+import soy.iko.opencode.data.model.ModelRef

13+import soy.iko.opencode.data.model.Part

14+import soy.iko.opencode.data.model.SessionError

15+import soy.iko.opencode.data.model.SessionIdle

16+import soy.iko.opencode.data.model.StepFinishPart

17+import soy.iko.opencode.data.model.UnknownMessage

18+import soy.iko.opencode.data.network.EventStreamClient

19+import soy.iko.opencode.data.network.NetworkConfig

20+import soy.iko.opencode.data.network.OpencodeApiClient

21+import soy.iko.opencode.util.runCatchingCancellable

22+import soy.iko.opencode.util.safeExceptionSummary

23+import android.util.Log

24+import kotlinx.coroutines.CoroutineScope

25+import kotlinx.coroutines.Dispatchers

26+import kotlinx.coroutines.Job

27+import kotlinx.coroutines.NonCancellable

28+import kotlinx.coroutines.delay

29+import kotlinx.coroutines.withContext

30+import kotlinx.coroutines.channels.Channel

31+import kotlinx.coroutines.flow.Flow

32+import kotlinx.coroutines.flow.channelFlow

33+import kotlinx.coroutines.flow.consumeAsFlow

34+import kotlinx.coroutines.flow.conflate

35+import kotlinx.coroutines.flow.flowOn

36+import kotlinx.coroutines.launch

37+import kotlinx.coroutines.sync.Mutex

38+import kotlinx.coroutines.sync.withLock

39+

40+/**

41+ * Source of truth for a session's conversation. It seeds from `GET /session/:id/message`

42+ * and then reduces [BusEvent]s from the SSE stream into an ordered list of messages,

43+ * each keyed by message id with parts keyed by part id (idempotent upserts).

44+ */

45+open class SessionRepository(

46+ private val api: OpencodeApiClient,

47+ private val eventStream: EventStreamClient,

48+ // Optional on-disk cache so a conversation renders instantly on open and stays readable

49+ // offline. Null in tests (and any path that doesn't wire it), where caching is skipped.

50+ private val messageCache: MessageCacheStore? = null,

51+ // Profile the cache is namespaced under, so two servers with a colliding session id don't

52+ // share a cache file. Empty in tests / when no cache is wired.

53+ private val profileId: String = "",

54+) {

55+ open suspend fun listSessions() = api.listSessions()

56+ open suspend fun createSession(title: String? = null, directory: String? = null) =

57+ api.createSession(title, directory)

58+ open suspend fun deleteSession(id: String) = api.deleteSession(id)

59+ open suspend fun abort(sessionId: String) = api.abort(sessionId)

60+

61+ open suspend fun sendPrompt(

62+ sessionId: String,

63+ text: String,

64+ attachments: List<FilePromptPart> = emptyList(),

65+ model: ModelRef?,

66+ agent: String? = null,

67+ // Stable key for retriable/re-sendable messages (the offline outbox). See

68+ // [OpencodeApiClient.sendPrompt]. Null generates a fresh key per call.

69+ idempotencyKey: String? = null,

70+ ) = api.sendPrompt(sessionId, text, attachments, model, agent, idempotencyKey)

71+

72+ open suspend fun runCommand(

73+ sessionId: String,

74+ command: String,

75+ arguments: String = "",

76+ agent: String? = null,

77+ ) = api.runCommand(sessionId, command, arguments = arguments, agent = agent)

78+

79+ /**

80+ * A live, ordered view of [sessionId]'s messages. Begins collecting the event

81+ * stream before the initial REST load so no streamed part is missed, then reduces

82+ * events into the in-memory state. The flow is conflated so a fast burst of

83+ * streaming tokens (each publishing a fresh snapshot) never back-pressures the

84+ * event reducer — a slow collector simply sees the most recent snapshot.

85+ */

86+ /** Per-subscription helper that persists reduced snapshots to [messageCache], throttled so a

87+ * fast token stream doesn't hammer the disk, plus a NonCancellable teardown flush. Extracted

88+ * from [observeMessages] so this cache-write branching lives in its own methods. [scope] is

89+ * the channelFlow scope, so scheduled saves are torn down with the flow — the teardown flush

90+ * re-persists a trailing write the cancellation dropped. */

91+ private inner class CacheWriter(private val scope: CoroutineScope, private val sessionId: String) {

92+ private var lastWrite = 0L

93+ private var pending: Job? = null

94+ // Most recent snapshot handed to [schedule], and the most recent one whose on-disk write

95+ // completed. `saved` is assigned from inside the launched save *after* it returns, so a

96+ // save cancelled mid-IO by teardown is NOT marked saved and [flushOnTeardown] re-persists

97+ // it. Written from the save coroutines, read from the collector/teardown; the only race is

98+ // a stale read causing one redundant, idempotent re-save (atomic temp+rename makes a

99+ // duplicate write of identical data harmless) — never data loss.

100+ private var latest: List<MessageWithParts>? = null

101+ private var saved: List<MessageWithParts>? = null

102+

103+ fun schedule(snapshot: List<MessageWithParts>) {

104+ val cache = messageCache ?: return

105+ // Don't early-return on an empty snapshot: MessageCacheStore.save deletes the file

106+ // for an empty list, which is exactly what we want when a conversation becomes empty

107+ // via MessageRemoved events. Skipping here would leave stale messages cached on disk

108+ // until an explicit remove() on session deletion.

109+ latest = snapshot

110+ val now = System.currentTimeMillis()

111+ pending?.cancel()

112+ // Immediate write once the throttle window has elapsed; otherwise a trailing-edge

113+ // write so a burst that ends inside the window (a run's final tokens right after a

114+ // write) still persists its last snapshot. A newer snapshot cancels and replaces a

115+ // pending trailing write, so continuous streaming coalesces to one write per window.

116+ val delayMs = if (now - lastWrite >= NetworkConfig.messageCacheWriteThrottleMs) {

117+ lastWrite = now

118+ 0L

119+ } else {

120+ NetworkConfig.messageCacheWriteThrottleMs

121+ }

122+ pending = scope.launch {

123+ if (delayMs > 0) delay(delayMs)

124+ cache.save(profileId, sessionId, snapshot)

125+ saved = snapshot

126+ }

127+ }

128+

129+ suspend fun flushOnTeardown() {

130+ // Scheduled saves are children of [scope], so teardown cancels a pending trailing

131+ // write before its delay elapses — a run's final tokens would never reach disk. Flush

132+ // the latest un-saved snapshot under NonCancellable so it survives the cancellation.

133+ val cache = messageCache ?: return

134+ val pendingSnapshot = latest ?: return

135+ if (pendingSnapshot !== saved) {

136+ withContext(NonCancellable) { cache.save(profileId, sessionId, pendingSnapshot) }

137+ }

138+ }

139+ }

140+

141+ open fun observeMessages(sessionId: String): Flow<List<MessageWithParts>> = channelFlow {

142+ val store = MessageStore()

143+ val lock = Mutex()

144+ // Conflated dirty signal: a burst of reduce()/seed() calls coalesces into a

145+ // single snapshot+send per demand cycle. Previously every changed event called

146+ // snapshot() — allocating an O(N) copy of the whole message list — and ~97% of

147+ // those copies were immediately discarded by the outer .conflate() during fast

148+ // streaming (hundreds of tokens/sec). Marking dirty and snapshotting in one

149+ // drain loop means N events in a burst allocate ~1 snapshot, not N.

150+ val dirty = Channel<Unit>(Channel.CONFLATED)

151+

152+ // Mark the store dirty; the drain loop below snapshots and publishes. CONFLATED

153+ // collapses repeated marks into a single pending signal, so a tight burst of

154+ // events doesn't even allocate N marks.

155+ fun publish() { dirty.trySend(Unit) }

156+

157+ // Subscribe to events first so we don't miss early deltas during the initial load.

158+ launch {

159+ eventStream.events.collect { event ->

160+ if (lock.withLock { store.reduce(sessionId, event) }) publish()

161+ }

162+ }

163+

164+ // Seed generation counter, shared between the initial load and the reconnect

165+ // re-seed. Guards against a stale fetch (from an earlier reconnect, or from a slow

166+ // initial load) clobbering a newer seed. Only mutated/read under [lock].

167+ var seedGeneration = 0

168+

169+ // Message ids introduced by the on-disk cache seed below. The initial REST seed uses

170+ // these to prune ghosts: a cache-seeded message absent from the authoritative REST

171+ // snapshot was deleted server-side while the app was closed. Restricting the prune to

172+ // cache-seeded ids means live SSE messages added since subscribe (not yet indexed by

173+ // REST) are never dropped. Written/read only in this collector coroutine.

174+ var cacheSeededIds: Set<String> = emptySet()

175+

176+ // Seed from the on-disk cache first so the conversation renders instantly — and stays

177+ // readable offline — before the network responds. Guarded on generation 0 so a

178+ // reconnect re-seed that somehow raced ahead isn't clobbered; the initial REST seed

179+ // (also generation 0) then overrides this with authoritative data when it succeeds.

180+ messageCache?.let { cache ->

181+ val cached = cache.load(profileId, sessionId)

182+ if (cached.isNotEmpty()) {

183+ val changed = lock.withLock {

184+ if (seedGeneration == 0) {

185+ // Store the synthetic key for UnknownMessages (which have empty ids) so

186+ // pruneStaleCacheSeeded's messages.remove(id) hits the actual map key

187+ // the store used ("unknown-c<created>" / "unknown-h<hash>") instead of

188+ // the empty id that never matches and leaves ghost entries un-pruned.

189+ cacheSeededIds = cached.mapTo(mutableSetOf()) { store.syntheticKeyFor(it) }

190+ store.seed(cached, clearPivot = false)

191+ } else false

192+ }

193+ if (changed) publish()

194+ }

195+ }

196+

197+ // Re-seed from REST when the SSE stream reconnects after a drop. The REST fetch

198+ // is performed *outside* the lock so events arriving via SSE during the fetch are

199+ // not blocked. The seed itself is under the lock; a seed generation counter ensures

200+ // a stale fetch (from an earlier reconnect) doesn't clobber a newer one.

201+ launch {

202+ // Re-seed from REST when the SSE stream reconnects after a drop. The

203+ // hasConnectedBefore flag is NOT reset on disconnect — it stays true after

204+ // the first successful connection so a subsequent reconnect triggers the

205+ // re-seed. Resetting it on disconnect would make the condition always false

206+ // after the first cycle, turning the re-seed into dead code.

207+ //

208+ // A seed generation counter guards against a stale re-seed clobbering a

209+ // newer one: if two reconnects fire in quick succession, the older fetch

210+ // (which returns later) is discarded because its generation no longer matches.

211+ var hasConnectedBefore = false

212+ eventStream.state.collect { state ->

213+ if (state == EventStreamClient.ConnectionState.Connected) {

214+ if (hasConnectedBefore) {

215+ // Pivot before the fetch: parts already in memory predate this

216+ // snapshot and must yield to it, while parts that stream in during

217+ // the fetch (added to streamedSincePivot via reduce) outrank it.

218+ // Bump the generation under the same lock so the compare in the

219+ // initial seed sees a consistent value.

220+ val generation = lock.withLock {

221+ store.beginReseed()

222+ ++seedGeneration

223+ }

224+ val freshResult = runCatchingCancellable { api.listMessages(sessionId) }

225+ .onFailure { Log.w("SessionRepository", "Re-seed message load failed for $sessionId; relying on SSE: ${safeExceptionSummary(it)}") }

226+ val fresh = freshResult.getOrNull()

227+ var seedChanged = false

228+ lock.withLock {

229+ if (generation == seedGeneration) {

230+ // Only prune when the fetch SUCCEEDED. A failed fetch yields

231+ // fresh == null; treating null as an empty REST snapshot would

232+ // make pruneStaleCacheSeeded remove EVERY cache-seeded message

233+ // (none are in the empty retain-set), wiping the whole cached

234+ // conversation on a transient network error — the cache is the

235+ // only thing keeping the session readable until SSE repopulates.

236+ var pruned = false

237+ if (fresh != null) {

238+ // Prune cache-seeded ghosts here too, not only in the initial

239+ // REST seed. If the SSE stream connected→dropped→reconnected

240+ // before the initial listMessages returned, seedGeneration was

241+ // already >0 by the time the initial seed ran, so its prune was

242+ // skipped (the `seedGeneration == 0` guard below). Without this

243+ // prune, messages deleted server-side while the app was closed

244+ // would survive as ghosts until a future app restart where the

245+ // timing happened not to recur.

246+ pruned = store.pruneStaleCacheSeeded(cacheSeededIds, fresh)

247+ }

248+ // Merge without pruning: SSE events arriving during the

249+ // REST fetch may have added messages not yet indexed by

250+ // the REST endpoint. Pruning would silently delete them.

251+ // Stale messages from deletions during the disconnect

252+ // gap are eventually removed via MessageRemoved events

253+ // or on the next app restart.

254+ val seeded = if (fresh != null) store.seed(fresh, prune = false) else false

255+ seedChanged = pruned || seeded

256+ }

257+ }

258+ if (seedChanged) publish()

259+ }

260+ hasConnectedBefore = true

261+ }

262+ }

263+ }

264+

265+ // Load the authoritative message list concurrently with the drain loop below so the

266+ // cache seed and any early SSE-reduced parts are emitted immediately. Running it inline

267+ // here (before the drain starts) would withhold the already-reduced cached conversation

268+ // until this fetch resolved — a blank screen for the whole withRetry backoff when offline.

269+ launch {

270+ val initialResult = runCatchingCancellable { api.listMessages(sessionId) }

271+ .onFailure { Log.w("SessionRepository", "Initial message load failed for $sessionId; relying on cache/SSE: ${safeExceptionSummary(it)}") }

272+ // Apply the initial seed only if no reconnect re-seed has run yet (generation still 0).

273+ // A re-seed is always a fresher full snapshot, so if the (possibly slow) initial fetch

274+ // returns after one has applied, seeding this older REST data would clobber the newer

275+ // state — reverting a completed run to "running", regressing cost/token/part state —

276+ // until the next SSE event or reconnect healed it. Only seed on SUCCESS: on failure

277+ // (e.g. offline) keep whatever's shown (the cache seed above) rather than clearing it.

278+ val seeded = lock.withLock {

279+ val list = initialResult.getOrNull()

280+ if (seedGeneration == 0 && list != null) {

281+ // Prune ghosts first: cache-seeded messages absent from this authoritative

282+ // REST snapshot were deleted server-side while the app was closed. Without

283+ // this they'd survive restart forever (re-seeded from cache, never pruned by

284+ // the reconnect path, and re-persisted by the drain loop).

285+ val pruned = store.pruneStaleCacheSeeded(cacheSeededIds, list)

286+ val changed = store.seed(list)

287+ pruned || changed

288+ } else false

289+ }

290+ if (seeded) publish()

291+ }

292+

293+ // Single drain: one snapshot+send per conflated dirty signal. The snapshot is

294+ // taken under the lock so a reader never sees a half-reduced state; send() runs

295+ // outside the lock so a slow downstream collector can't stall the drain. This

296+ // loop also keeps the flow alive until the collector cancels; the launched jobs

297+ // above are children of this scope and are torn down with it.

298+ // Per-subscription cache writer: throttled snapshot persistence + a NonCancellable

299+ // teardown flush. `this` is the channelFlow scope, so its scheduled saves are torn down

300+ // with the flow (the teardown flush re-persists a cancelled trailing write).

301+ val cacheWriter = CacheWriter(this, sessionId)

302+ // Guarantee at least one emission even when nothing seeds the store: with no on-disk

303+ // cache, a failing initial REST load (swallowed above), and a quiet SSE stream, none of

304+ // the seed paths publish, so the flow would emit nothing at all. The sole collector

305+ // (ChatViewModel) only clears its loading spinner on an emission, so without this a

306+ // first-open of an erroring/empty session spins forever with no way to reach the

307+ // "Failed to load / Retry" affordance. CONFLATED dirty coalesces this with any seed

308+ // publish into a single send.

309+ publish()

310+ try {

311+ dirty.consumeAsFlow().collect {

312+ val snapshot = lock.withLock { store.snapshot() }

313+ send(snapshot)

314+ // Persist to the on-disk cache, throttled so a fast token stream doesn't hammer

315+ // the disk — the cache only needs to be "recent enough" for an instant/offline

316+ // first paint; the network corrects it on the next open.

317+ cacheWriter.schedule(snapshot)

318+ }

319+ } finally {

320+ cacheWriter.flushOnTeardown()

321+ }

322+ // Run the whole reducer pipeline — event reduction, list rebuilds, and the O(N)

323+ // snapshot copy — on Dispatchers.Default rather than the collector's context. The

324+ // sole consumer collects via stateIn(viewModelScope), i.e. Main.immediate, so without

325+ // this every streamed token's reduce()/snapshot() would execute on the UI thread

326+ // (hundreds/sec on a fast run). The seed REST calls here only suspend, so moving them

327+ // off Main is harmless. JSON decoding already runs off-Main upstream in EventStreamClient.

328+ }.flowOn(Dispatchers.Default).conflate()

329+

330+ companion object {

331+ /** Convenience: is this event a run-completion signal for [sessionId]?

332+ * A null sessionID is NOT treated as a wildcard — an idle event with no

333+ * session id must not reset the running state of every open chat. */

334+ fun isIdle(event: BusEvent, sessionId: String): Boolean =

335+ event is SessionIdle && event.properties.sessionID == sessionId

336+

337+ fun isError(event: BusEvent, sessionId: String): Boolean =

338+ event is SessionError && event.properties.sessionID == sessionId

339+

340+ /** Does this event indicate an in-progress run for [sessionId]? A live streamed part or

341+ * an assistant message that isn't yet complete/errored means the agent is still working.

342+ * Used to restore the "running" indicator after an SSE reconnect: if the run is still

343+ * going, such live events keep arriving; a run that finished during the outage produces

344+ * none (its completion arrives via the REST re-seed, not the event stream). */

345+ fun isRunActivity(event: BusEvent, sessionId: String): Boolean = when (event) {

346+ // The session id rides on the part for message.part.updated; properties.sessionID

347+ // is null on the wire. Mirror reduce()'s `part.sessionID ?: properties.sessionID`

348+ // so a run that's only streaming parts still re-lights the indicator on reconnect.

349+ // A step-finish part is the trailing completion marker for a run (it carries the

350+ // final cost/token totals) and arrives after the last stream delta. Treating it as

351+ // live activity would re-light the running indicator after a reconnect when the run

352+ // already finished during the outage — with no following SessionIdle to clear it,

353+ // pinning the spinner (and the foreground service) indefinitely. Mirrors

354+ // AppContainer.isLiveRunActivity's exclusion.

355+ is MessagePartUpdated -> {

356+ val part = event.properties.part

357+ part !is StepFinishPart &&

358+ (part.sessionID ?: event.properties.sessionID) == sessionId

359+ }

360+ is MessageUpdated -> {

361+ val info = event.properties.info ?: return false

362+ info.sessionID == sessionId && info is AssistantMessage && !info.isComplete && info.error == null

363+ }

364+ else -> false

365+ }

366+ }

367+}

368+

369+/**

370+ * In-memory reduction state for one observed session. Not thread-safe; guard with a Mutex.

371+ * Exposed as `internal` so the reducer logic can be unit-tested directly.

372+ */

373+internal class MessageStore {

374+ // messageId -> mutable holder (info + insertion-ordered parts); the map itself is

375+ // insertion-ordered.

376+ private val messages = LinkedHashMap<String, Holder>()

377+

378+ /**

379+ * Mutable per-message holder. Parts live in an insertion-ordered map keyed by part id, so a

380+ * streamed part update is an O(1) put instead of an O(P) list rebuild. The immutable

381+ * [MessageWithParts] view is materialized lazily and cached until the next mutation — so a

382+ * burst of streamed token updates rebuilds a message's part list at most once per published

383+ * [snapshot], not once per token. The cached view is also reference-stable across snapshots

384+ * while unchanged, so Compose skips recomposing bubbles that didn't change.

385+ */

386+ private class Holder(var info: MessageInfo, val parts: LinkedHashMap<String, Part>) {

387+ private var cached: MessageWithParts? = null

388+ fun view(): MessageWithParts =

389+ cached ?: MessageWithParts(info, parts.values.toList()).also { cached = it }

390+ /** Adopt an existing immutable instance as the cache — avoids an immediate rebuild and

391+ * preserves its identity (e.g. when seeding an authoritative REST snapshot). */

392+ fun adopt(m: MessageWithParts) { cached = m }

393+ fun invalidate() { cached = null }

394+ }

395+

396+ /** Build a [Holder] from an immutable message, reusing [m] itself as the cached view. */

397+ private fun holderOf(m: MessageWithParts): Holder {

398+ val parts = LinkedHashMap<String, Part>(m.parts.size)

399+ for (p in m.parts) parts[p.id] = p

400+ return Holder(m.info, parts).also { it.adopt(m) }

401+ }

402+

403+ /** Part ids upserted via [reduce] since the last reseed pivot ([beginReseed]) or seed.

404+ * On a reconnect re-seed these are the parts that streamed in *during* the REST fetch,

405+ * so they're newer than the snapshot and must win over it; every other part is taken

406+ * from the authoritative REST snapshot. Without this distinction the merge kept every

407+ * overlapping in-memory part, so a part that changed server-side during the disconnect

408+ * (e.g. a tool going running -> completed) stayed stale until app restart. */

409+ private val streamedSincePivot = mutableSetOf<String>()

410+

411+ /** Message ids whose `info` was updated via a live SSE [reduce] since the last reseed

412+ * pivot ([beginReseed]) or seed. Parallels [streamedSincePivot] but for message info:

413+ * on a reconnect re-seed these are the messages whose info changed *during* the REST

414+ * fetch, so the in-memory info is newer than the snapshot and must win; every other

415+ * message's info is taken from the authoritative REST snapshot. Without this the merge

416+ * kept the in-memory info, so a run that finished server-side during the disconnect

417+ * (e.g. cost/token totals, completion time) stayed stale until app restart. */

418+ private val messageInfoUpdatedSincePivot = mutableSetOf<String>()

419+

420+ /** Mark the point a reconnect re-seed's REST fetch begins: parts/info streamed from here

421+ * on are newer than the fetched snapshot. Call under the same lock as [seed]/[reduce]. */

422+ fun beginReseed() {

423+ streamedSincePivot.clear()

424+ messageInfoUpdatedSincePivot.clear()

425+ }

426+

427+ /** Maximum number of messages to keep in memory; oldest are evicted when exceeded. */

428+ internal val maxMessages = NetworkConfig.maxInMemoryMessages

429+

430+ fun snapshot(): List<MessageWithParts> = messages.values.map { it.view() }

431+

432+ fun seed(initial: List<MessageWithParts>, prune: Boolean = false, clearPivot: Boolean = true): Boolean {

433+ var changed = false

434+ // seed() does NOT prune by default. Pruning is intentionally NOT wired into the

435+ // reconnect re-seed (the only path that would want it): the live SSE stream — via

436+ // MessageRemoved events — drives deletions, and pruneStaleCacheSeeded() handles

437+ // ghosts from the on-disk cache on restart. Pruning on re-seed would race with

438+ // just-arrived SSE events whose messages may not yet be indexed by REST, dropping

439+ // live messages. The `prune = true` branch below is retained as a tested capability

440+ // for callers that can guarantee no concurrent SSE (e.g. a future explicit

441+ // "discard and reload from REST" entry point); the current production re-seed

442+ // callsite passes `prune = false` for the race reason above.

443+ if (prune) {

444+ // Build the retain-set from the synthetic key (matching the map's keying for

445+ // UnknownMessages with empty ids) so an entry stored under "unknown-c<created>"

446+ // isn't wrongly evicted and re-inserted under "" — which would lose its

447+ // insertion-order position and force a spurious snapshot emission.

448+ val incomingKeys = initial.mapTo(mutableSetOf()) { syntheticKeyFor(it) }

449+ val before = messages.size

450+ messages.keys.retainAll(incomingKeys)

451+ if (messages.size != before) changed = true

452+ }

453+ // An authoritative seed supersedes any eviction record: a message re-introduced by

454+ // this seed is back in memory, so a later MessagePartUpdated should update it, not

455+ // be dropped as "late for an evicted message". Clearing keeps the set bounded too.

456+ evictedMessageIds.clear()

457+

458+ for (m in initial) {

459+ val key = syntheticKeyFor(m)

460+ val existing = messages[key]

461+ if (existing == null) {

462+ messages[key] = holderOf(m)

463+ changed = true

464+ } else {

465+ // A part streamed in between subscribe and this initial load may already

466+ // have populated this message (see observeMessages). Merge instead of

467+ // overwriting so that newer streamed part isn't discarded: take the

468+ // snapshot's part order, swap in the streamed version where ids overlap,

469+ // append any streamed-only parts, and adopt the authoritative REST info.

470+ val streamedById = existing.parts

471+ val snapshotIds = m.parts.mapTo(mutableSetOf()) { it.id }

472+ // Prefer the in-memory version of an overlapping part ONLY if it streamed

473+ // in since the reseed pivot (i.e. during this fetch), so it's newer than

474+ // the snapshot. Otherwise the REST snapshot is authoritative and wins,

475+ // discarding an in-memory part that went stale during a disconnect.

476+ val ordered = m.parts.map { p ->

477+ if (p.id in streamedSincePivot) streamedById[p.id] ?: p else p

478+ }.toMutableList()

479+ // Append only parts that streamed in *since the pivot* and are absent from the

480+ // snapshot — i.e. genuinely newer than this REST fetch. A part in memory from

481+ // before the pivot that the snapshot omits was removed server-side; the

482+ // authoritative REST snapshot must be allowed to drop it, else it reappears as

483+ // a ghost and gets baked into the on-disk cache forever.

484+ for (p in existing.parts.values) {

485+ if (p.id !in snapshotIds && p.id in streamedSincePivot) ordered.add(p)

486+ }

487+ // Adopt the authoritative REST info unless the in-memory info was itself

488+ // updated live since the pivot (i.e. during this fetch), in which case it's

489+ // newer than the snapshot. Otherwise the REST snapshot wins. The pivot set is

490+ // keyed by the same synthetic key used in the map (see handleMessageUpdated),

491+ // so test that here instead of m.info.id — which is "" for an UnknownMessage

492+ // and would never match, leaving the pivot protection inert for that case.

493+ val info = if (existing.info is UnknownMessage || key !in messageInfoUpdatedSincePivot) m.info else existing.info

494+ val merged = MessageWithParts(info = info, parts = ordered)

495+ if (merged != existing.view()) {

496+ // Store under `key` (the synthetic key for an empty-id UnknownMessage),

497+ // not `m.info.id` (which is "" for such a message and would collide).

498+ messages[key] = holderOf(merged)

499+ changed = true

500+ }

501+ }

502+ }

503+ // A part that streamed in *before* this initial load (observeMessages subscribes to

504+ // SSE before fetching) inserts its message at the front of the insertion-ordered map,

505+ // and the merge above keeps that position — pinning a running message above the older

506+ // history that seed() inserts afterward. Restore chronological order by creation time

507+ // FIRST, so eviction below drops the genuinely-oldest entries: evictOldMessages()

508+ // removes from the map's front, which before reordering is the newest streamed message.

509+ if (reorderByTime()) changed = true

510+ if (evictOldMessages()) changed = true

511+ // Reset the pivot: everything just merged is now the baseline, so only parts/info

512+ // that stream in *after* this seed can outrank the next reconnect's snapshot. The

513+ // on-disk cache seed passes clearPivot = false: it runs *before* the authoritative

514+ // initial REST seed, so clearing here would strip pivot protection from SSE parts/info

515+ // that streamed in since subscribe, letting that REST seed regress them.

516+ if (clearPivot) {

517+ streamedSincePivot.clear()

518+ messageInfoUpdatedSincePivot.clear()

519+ }

520+ return changed

521+ }

522+

523+ /** Remove messages that were seeded from the on-disk cache ([cacheSeededIds]) but are

524+ * absent from the authoritative REST snapshot [rest] — i.e. deleted server-side while the

525+ * app was closed. Restricted to cache-seeded ids so a message added by a live SSE event

526+ * since subscribe (which the REST endpoint may not have indexed yet) is never pruned.

527+ * This is what actually removes ghosts on restart; the reconnect re-seed deliberately

528+ * keeps prune=false to avoid racing just-arrived SSE. Call under the same lock as [seed].

529+ * Returns true if anything was removed. */

530+ fun pruneStaleCacheSeeded(cacheSeededIds: Set<String>, rest: List<MessageWithParts>): Boolean {

531+ if (cacheSeededIds.isEmpty()) return false

532+ // Build the retain-set from the synthetic key (matching the map's keying for

533+ // UnknownMessages with empty ids) so an entry stored under "unknown-c<created>" isn't

534+ // wrongly pruned just because its raw id ("") isn't in the REST snapshot's raw-id set.

535+ val restIds = rest.mapTo(mutableSetOf()) { syntheticKeyFor(it) }

536+ var changed = false

537+ for (id in cacheSeededIds) {

538+ if (id !in restIds && messages.remove(id) != null) changed = true

539+ }

540+ return changed

541+ }

542+

543+ /** Resolve the map key for a seed entry. An UnknownMessage with an empty id (from an

544+ * unrecognized server role with no id field) was stored by handleMessageUpdated under a

545+ * synthetic key ("unknown-c<created>" or "unknown-h<hash>"); derive the same key here so

546+ * a REST seed merges onto the existing holder instead of missing it and inserting a

547+ * duplicate under key "". */

548+ internal fun syntheticKeyFor(m: MessageWithParts): String =

549+ if (m.info.id.isEmpty() && m.info is UnknownMessage) {

550+ m.info.time?.created?.let { "unknown-c$it" } ?: "unknown-h${m.info.hashCode()}"

551+ } else {

552+ m.info.id

553+ }

554+

555+ /** Resolve the actual map key for a raw message id from a server event. A non-empty id is

556+ * the map key as-is. An empty id ("") can't be the map key (handleMessageUpdated stores

557+ * UnknownMessages with empty ids under a synthetic "unknown-c<created>" / "unknown-h<hash>"

558+ * key), so search the map for the holder whose info is an UnknownMessage with an empty id.

559+ * Returns null when no holder matches — callers treat this as "not in the store" and skip.

560+ *

561+ * This is O(N) only for the rare empty-id case (UnknownMessages from unrecognized server

562+ * roles); the common non-empty-id path is an O(1) map lookup. Without this, handleMessageRemoved

563+ * / handlePartRemoved / the null-session MessagePartUpdated guard would all miss synthetic-keyed

564+ * holders, leaving ghost entries and dropped part removals. */

565+ private fun resolveMapKey(messageId: String): String? {

566+ if (messageId.isNotEmpty()) return messageId

567+ // Empty id: find a holder stored under a synthetic key whose info is an UnknownMessage

568+ // with an empty id. There's normally at most one such holder per session (an unrecognized

569+ // server role with no id is rare), so the linear scan is acceptable.

570+ return messages.entries.firstOrNull { entry ->

571+ entry.value.info is UnknownMessage && entry.value.info.id.isEmpty()

572+ }?.key

573+ }

574+

575+ /** Reorder the message map by message creation time (stable). Ties and entries with no

576+ * server time yet (e.g. a brand-new message still streaming and not in REST) keep their

577+ * relative order, so such a message stays last. Preserves each entry's map key so the

578+ * synthetic UnknownMessage keys aren't collapsed. Returns true if the order changed. */

579+ private fun reorderByTime(): Boolean {

580+ val entries = messages.entries.map { it.key to it.value }

581+ val sorted = entries.sortedBy { it.second.info.time?.created ?: Long.MAX_VALUE }

582+ // Detect a reordering by comparing keys positionally, instead of allocating two more

583+ // N-sized key lists just to compare them.

584+ var changed = false

585+ for (i in sorted.indices) {

586+ if (sorted[i].first != entries[i].first) { changed = true; break }

587+ }

588+ if (!changed) return false

589+ messages.clear()

590+ for ((k, v) in sorted) messages[k] = v

591+ return true

592+ }

593+

594+ /** Returns true if the state changed (and a new snapshot should be published). */

595+ fun reduce(sessionId: String, event: BusEvent): Boolean {

596+ return when (event) {

597+ is MessageUpdated -> handleMessageUpdated(sessionId, event)

598+

599+ is MessagePartUpdated -> {

600+ val part = event.properties.part

601+ val rawMessageId = part.messageID ?: event.properties.messageID

602+ val partSession = part.sessionID ?: event.properties.sessionID

603+ when {

604+ rawMessageId == null -> false

605+ // Resolve the map key: an UnknownMessage with an empty id is stored under a

606+ // synthetic key, so upsertPart(rawMessageId, part) would miss it and fork a

607+ // duplicate holder under key "". resolveMapKey returns the synthetic key when

608+ // the holder exists, or the raw id (possibly "") when it doesn't — in which

609+ // case upsertPart creates a fresh holder under that id, matching the prior

610+ // behavior for a genuinely new message.

611+ else -> {

612+ val mapKey = resolveMapKey(rawMessageId) ?: rawMessageId

613+ if (partSession != null) {

614+ if (partSession == sessionId) upsertPart(mapKey, part) else false

615+ } else {

616+ // No session id anywhere on the event: a null session is NOT a wildcard

617+ // (mirroring isIdle/isError). Every open session's store sees the shared

618+ // event stream, so accepting it unconditionally would leak the part into

619+ // unrelated conversations (e.g. both panes in two-pane mode). Attribute it

620+ // only if this store already holds the parent message — MessageUpdated,

621+ // which always carries a session id, will have created it here first.

622+ if (messages.containsKey(mapKey)) upsertPart(mapKey, part) else false

623+ }

624+ }

625+ }

626+ }

627+

628+ is MessagePartRemoved -> handlePartRemoved(sessionId, event)

629+

630+ is MessageRemoved -> handleMessageRemoved(sessionId, event)

631+

632+ else -> false

633+ }

634+ }

635+

636+ private fun handleMessageUpdated(sessionId: String, event: MessageUpdated): Boolean {

637+ val info = event.properties.info ?: return false

638+ if (info.sessionID != sessionId) return false

639+ // An UnknownMessage with an empty id (e.g. from an unrecognized server role with no id

640+ // field) would collide with other such messages in the map. It carries no id, only

641+ // sessionID/time, so derive a synthetic key. Prefer the immutable creation timestamp: it's

642+ // stable across updates, so a later update to the SAME unknown message (whose `time.updated`

643+ // or `time.completed` changes) coalesces onto its holder via the existing==info guard below

644+ // instead of forking a duplicate — the failure mode a full-content hash has, since any

645+ // content change moves the hash. Distinct unknown messages still separate by their distinct

646+ // creation times; only when even `created` is absent do we fall back to the content hash.

647+ val key = if (info.id.isEmpty() && info is UnknownMessage) {

648+ info.time?.created?.let { "unknown-c$it" } ?: "unknown-h${info.hashCode()}"

649+ } else {

650+ info.id

651+ }

652+ val existing = messages[key]

653+ // A server re-sending byte-identical info is a no-op: skip it so we don't publish a

654+ // redundant snapshot (mirrors upsertPart's identical-part guard).

655+ if (existing != null && existing.info == info) return false

656+ // A MessageUpdated re-introduces the message into the store (it was either evicted

657+ // by evictOldMessages or genuinely new). Drop any eviction record so a following

658+ // MessagePartUpdated updates this holder instead of being dropped as "late".

659+ info.id.takeIf { it.isNotEmpty() }?.let { evictedMessageIds.remove(it) }

660+ if (existing == null) {

661+ messages[key] = Holder(info, LinkedHashMap())

662+ } else {

663+ existing.info = info

664+ existing.invalidate()

665+ }

666+ // Record that this message's info streamed in live, so a re-seed after a reconnect knows

667+ // it's newer than the REST snapshot and keeps it (see seed()/beginReseed()).

668+ messageInfoUpdatedSincePivot.add(key)

669+ if (existing == null) evictOldMessages()

670+ return true

671+ }

672+

673+ private fun handlePartRemoved(sessionId: String, event: MessagePartRemoved): Boolean {

674+ val rawMessageId = event.properties.messageID ?: return false

675+ val partId = event.properties.partID ?: return false

676+ val eventSession = event.properties.sessionID

677+ // Resolve the actual map key: an UnknownMessage with an empty id is stored under a

678+ // synthetic key, so a bare messages.containsKey(rawMessageId) would miss it and the

679+ // part removal would be silently dropped.

680+ val mapKey = resolveMapKey(rawMessageId) ?: return false

681+ when {

682+ eventSession != null && eventSession != sessionId -> return false

683+ // Null session id: only act if this store already holds the parent message, so a

684+ // null-session part removal can't drop a part from an unrelated session's store.

685+ eventSession == null && !messages.containsKey(mapKey) -> return false

686+ }

687+ return removePart(mapKey, partId)

688+ }

689+

690+ private fun handleMessageRemoved(sessionId: String, event: MessageRemoved): Boolean {

691+ val rawId = event.properties.messageID ?: return false

692+ val eventSession = event.properties.sessionID

693+ // Resolve the actual map key: an UnknownMessage with an empty id is stored under a

694+ // synthetic key ("unknown-c<created>" / "unknown-h<hash>"), so messages.remove(rawId)

695+ // would miss it and leave the ghost entry stranded — the pivotKey cleanup below would

696+ // be dead code (the early return fires before it runs).

697+ val id = resolveMapKey(rawId) ?: return false

698+ when {

699+ eventSession != null && eventSession != sessionId -> return false

700+ // Null session id: only act if this store already holds the message (message ids

701+ // are globally unique, so this attributes the removal to the owning session only).

702+ eventSession == null && !messages.containsKey(id) -> return false

703+ }

704+ val removed = messages.remove(id) ?: return false

705+ // The message is gone from the store; drop any eviction record for it so the set

706+ // doesn't retain ids of long-deleted messages. (A re-seed would also clear this,

707+ // but a quiet session that never reconnects could otherwise accumulate entries.)

708+ removed.info.id.takeIf { it.isNotEmpty() }?.let { evictedMessageIds.remove(it) }

709+ // Derive the same key handleMessageUpdated would have stored this holder under. For an

710+ // UnknownMessage with an empty id, that's the synthetic "unknown-c<created>" /

711+ // "unknown-h<hash>" key (not the raw empty id) — removing the raw id here would leave

712+ // the synthetic entry stranded in messageInfoUpdatedSincePivot forever (no correctness

713+ // impact today — seed() only consults it when the holder exists — but unbounded growth

714+ // across many add/remove cycles in a long-lived session). Mirrors evictOldMessages,

715+ // which already uses the map key (oldestKey) for its pivot cleanup.

716+ val pivotKey = if (rawId.isEmpty() && removed.info is UnknownMessage) {

717+ removed.info.time?.created?.let { "unknown-c$it" } ?: "unknown-h${removed.info.hashCode()}"

718+ } else {

719+ id

720+ }

721+ messageInfoUpdatedSincePivot.remove(pivotKey)

722+ removed.parts.keys.forEach { streamedSincePivot.remove(it) }

723+ return true

724+ }

725+

726+ private fun upsertPart(messageId: String, part: Part): Boolean {

727+ val current = messages[messageId]

728+ if (current != null) {

729+ // O(1) map lookup + put, vs the former O(P) indexOfFirst scan and full-list copy

730+ // on every streamed token. A LinkedHashMap re-put keeps the part's original

731+ // position (replace-in-place); a new id is appended — matching the old list order.

732+ if (current.parts[part.id] == part) return false

733+ current.parts[part.id] = part

734+ current.invalidate()

735+ } else {

736+ // A late part update for a message that was evicted by evictOldMessages() (the

737+ // store caps at maxMessages) would otherwise re-insert the message with only

738+ // this single part — a partial, contextless bubble at the end of the list. The

739+ // evicted message's other parts are gone from memory, so re-inserting can't

740+ // restore them; ignore the late part instead. (A later MessageUpdated for the

741+ // same id — which always carries full info — re-creates the holder correctly.)

742+ if (evictedMessageIds.contains(messageId)) return false

743+ val parts = LinkedHashMap<String, Part>()

744+ parts[part.id] = part

745+ messages[messageId] = Holder(

746+ info = UnknownMessage(id = messageId, sessionID = part.sessionID ?: ""),

747+ parts = parts,

748+ )

749+ }

750+ // Record that this part streamed in, so a re-seed after a reconnect knows it's

751+ // newer than the REST snapshot and keeps it (see seed()/beginReseed()).

752+ streamedSincePivot.add(part.id)

753+ if (current == null) evictOldMessages()

754+ return true

755+ }

756+

757+ private fun removePart(messageId: String, partId: String): Boolean {

758+ val current = messages[messageId] ?: return false

759+ if (current.parts.remove(partId) == null) return false

760+ // Drop the pivot entry too so the set doesn't accumulate ids of removed parts for

761+ // the rest of the session (it's otherwise only cleared on reseed/eviction). No

762+ // correctness impact today — a stale entry just falls back to the REST snapshot's

763+ // version in seed() — but keeping it symmetric with handleMessageRemoved/eviction

764+ // bounds the set's growth over a long-lived session.

765+ streamedSincePivot.remove(partId)

766+ current.invalidate()

767+ return true

768+ }

769+

770+ /** Message ids evicted by [evictOldMessages] (capped at [maxMessages]). A late

771+ * [MessagePartUpdated] for one of these would otherwise re-insert the message under

772+ * [upsertPart] with only the late part — a partial, contextless bubble at the end of

773+ * the list. Membership here tells upsertPart to drop the late part instead. Bounded by

774+ * the same cap (entries are removed when the message is re-seeded via [seed] or removed

775+ * via [handleMessageRemoved]); a long-lived session that cycles past maxMessages many

776+ * times never grows this beyond the most recent eviction batch. */

777+ private val evictedMessageIds = mutableSetOf<String>()

778+

779+ /** Evict the oldest messages when the store exceeds [maxMessages], keeping memory bounded.

780+ * Returns true if any messages were evicted. */

781+ private fun evictOldMessages(): Boolean {

782+ var evicted = false

783+ while (messages.size > maxMessages) {

784+ val oldestKey = messages.keys.iterator().next()

785+ val removed = messages.remove(oldestKey)

786+ // Record the evicted message's id so a late MessagePartUpdated for it is dropped

787+ // instead of re-inserting a single-part bubble (see upsertPart). Also clear any

788+ // prior eviction record for this id from an older cycle (the message re-entered

789+ // via seed/MessageUpdated and has now been evicted again).

790+ removed?.info?.id?.takeIf { it.isNotEmpty() }?.let { id ->

791+ evictedMessageIds.add(id)

792+ }

793+ // Prune the evicted message's pivot bookkeeping so these sets don't grow

794+ // unbounded over a long-running session that never reconnects (they're only

795+ // otherwise cleared on reseed/seed).

796+ messageInfoUpdatedSincePivot.remove(oldestKey)

797+ removed?.parts?.keys?.forEach { streamedSincePivot.remove(it) }

798+ evicted = true

799+ }

800+ return evicted

801+ }

802+}

app/src/main/java/soy/iko/opencode/data/repo/SettingsStore.ktnew file+279

@@ -0,0 +1,279 @@

1+package soy.iko.opencode.data.repo

2+

3+import android.content.Context

4+import androidx.datastore.preferences.core.booleanPreferencesKey

5+import androidx.datastore.preferences.core.edit

6+import androidx.datastore.preferences.core.floatPreferencesKey

7+import androidx.datastore.preferences.core.intPreferencesKey

8+import androidx.datastore.preferences.core.stringPreferencesKey

9+import androidx.datastore.preferences.preferencesDataStore

10+import kotlinx.coroutines.flow.Flow

11+import kotlinx.coroutines.flow.map

12+

13+enum class ThemeMode { SYSTEM, LIGHT, DARK, AMOLED }

14+

15+private val Context.settingsDataStore by preferencesDataStore(name = "settings")

16+

17+/** App-preferences store: theme mode, dynamic color (Material You), input behavior. */

18+@Suppress("TooManyFunctions")

19+class SettingsStore(context: Context) {

20+

21+ private val appContext = context.applicationContext

22+ private val themeKey = stringPreferencesKey("theme_mode")

23+ private val dynamicColorKey = booleanPreferencesKey("dynamic_color")

24+ private val sendOnEnterKey = booleanPreferencesKey("send_on_enter")

25+ private val appLockKey = booleanPreferencesKey("app_lock")

26+ private val appLockReLockSecondsKey = intPreferencesKey("app_lock_relock_seconds")

27+ private val chatTextScaleKey = floatPreferencesKey("chat_text_scale")

28+ private val codeWrapKey = booleanPreferencesKey("code_wrap")

29+ private val sessionSortModeKey = stringPreferencesKey("session_sort_mode")

30+ private val sessionSortDescendingKey = booleanPreferencesKey("session_sort_descending")

31+ private val sessionShowArchivedKey = booleanPreferencesKey("session_show_archived")

32+ private val preferredModelIdKey = stringPreferencesKey("preferred_model_id")

33+ private val preferredAgentNameKey = stringPreferencesKey("preferred_agent_name")

34+ private val compactMessageSpacingKey = booleanPreferencesKey("compact_message_spacing")

35+ private val hapticsEnabledKey = booleanPreferencesKey("haptics_enabled")

36+ private val reducedMotionKey = booleanPreferencesKey("reduced_motion")

37+ private val languageOverrideKey = stringPreferencesKey("language_override")

38+ private val notifRunCompleteKey = booleanPreferencesKey("notif_run_complete")

39+ private val notifPermissionKey = booleanPreferencesKey("notif_permission")

40+ private val notifErrorKey = booleanPreferencesKey("notif_error")

41+ private val swipeLeftActionKey = stringPreferencesKey("swipe_left_action")

42+ private val swipeRightActionKey = stringPreferencesKey("swipe_right_action")

43+

44+ companion object {

45+ /** Bounds for the chat text-size multiplier so the UI can't be scaled into

46+ * unreadability or an unusable micro-font. 1.0 is the design default. */

47+ const val MIN_CHAT_TEXT_SCALE = 0.8f

48+ const val MAX_CHAT_TEXT_SCALE = 1.6f

49+ const val DEFAULT_CHAT_TEXT_SCALE = 1.0f

50+ /** 0 means re-lock the instant the app backgrounds. Other entries are the grace

51+ * period (seconds) during which a quick app-switch does NOT re-prompt for auth. */

52+ val APP_LOCK_RELOCK_OPTIONS_SECONDS: List<Int> = listOf(0, 30, 60, 300, 1800, 3600)

53+ const val DEFAULT_APP_LOCK_RELOCK_SECONDS = 0

54+ }

55+

56+ val themeMode: Flow<ThemeMode> = appContext.settingsDataStore.data.map { prefs ->

57+ runCatching { ThemeMode.valueOf(prefs[themeKey] ?: ThemeMode.SYSTEM.name) }

58+ .getOrDefault(ThemeMode.SYSTEM)

59+ }

60+

61+ // Default OFF so the app ships with its hand-built "Tokyo Night" brand palette rather than

62+ // the wallpaper-derived Material You scheme, which fully replaces the brand colours. Users

63+ // on Android 12+ can still opt into dynamic color from Settings.

64+ val dynamicColor: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

65+ prefs[dynamicColorKey] ?: false

66+ }

67+

68+ /** When true, the hardware Enter key sends the prompt; when false, Enter inserts a

69+ * newline and Ctrl+Enter sends. Soft-keyboard IME action always sends. Defaults to

70+ * true to match the prior hardcoded behavior. */

71+ val sendOnEnter: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

72+ prefs[sendOnEnterKey] ?: true

73+ }

74+

75+ /** When true, the app requires device biometric/credential authentication on launch

76+ * (and when returning from the background) before the UI is shown, protecting the

77+ * stored server credentials. Defaults to false so the app is usable out of the box. */

78+ val appLock: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

79+ prefs[appLockKey] ?: false

80+ }

81+

82+ /** Grace period (seconds) before re-locking after the app backgrounds. 0 = re-lock

83+ * immediately (the prior behavior). Lets a quick app-switch not re-prompt, which is the

84+ * standard reason users disable biometric locks in messaging/banking apps. */

85+ val appLockReLockSeconds: Flow<Int> = appContext.settingsDataStore.data.map { prefs ->

86+ prefs[appLockReLockSecondsKey] ?: DEFAULT_APP_LOCK_RELOCK_SECONDS

87+ }

88+

89+ /** Multiplier applied to chat message (markdown) and code text so users can size the

90+ * conversation for readability independently of the system font scale. Clamped to

91+ * [[MIN_CHAT_TEXT_SCALE], [MAX_CHAT_TEXT_SCALE]] on read so a corrupt/out-of-range

92+ * stored value can never produce an unreadable UI. Defaults to 1.0 (design size). */

93+ val chatTextScale: Flow<Float> = appContext.settingsDataStore.data.map { prefs ->

94+ (prefs[chatTextScaleKey] ?: DEFAULT_CHAT_TEXT_SCALE)

95+ .coerceIn(MIN_CHAT_TEXT_SCALE, MAX_CHAT_TEXT_SCALE)

96+ }

97+

98+ /** When true, fenced/indented code blocks soft-wrap long lines instead of scrolling

99+ * horizontally. Defaults to false (horizontal scroll) to preserve code formatting. */

100+ val codeWrap: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

101+ prefs[codeWrapKey] ?: false

102+ }

103+

104+ /** Persisted session-list sort mode so a chosen ordering survives process death (not just

105+ * rotation). Stored as the enum name; an unknown value falls back to RECENT. */

106+ val sessionSortMode: Flow<String> = appContext.settingsDataStore.data.map { prefs ->

107+ prefs[sessionSortModeKey] ?: "RECENT"

108+ }

109+

110+ /** Persisted session-list sort direction. Defaults to descending (newest first). */

111+ val sessionSortDescending: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

112+ prefs[sessionSortDescendingKey] ?: true

113+ }

114+

115+ /** Persisted "show archived sessions" toggle so the choice survives process death. */

116+ val sessionShowArchived: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

117+ prefs[sessionShowArchivedKey] ?: false

118+ }

119+

120+ /** Preferred default model id for new sessions. Empty means "use the server default".

121+ * A user who always picks a specific model doesn't have to pick it every session. */

122+ val preferredModelId: Flow<String> = appContext.settingsDataStore.data.map { prefs ->

123+ prefs[preferredModelIdKey] ?: ""

124+ }

125+

126+ /** Preferred default agent name for new sessions. Empty means "use the server default". */

127+ val preferredAgentName: Flow<String> = appContext.settingsDataStore.data.map { prefs ->

128+ prefs[preferredAgentNameKey] ?: ""

129+ }

130+

131+ /** When true, chat message bubbles use a tighter vertical spacing (8dp vs the default 16dp)

132+ * so power users can fit more conversation on screen. Defaults to false (the design default). */

133+ val compactMessageSpacing: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

134+ prefs[compactMessageSpacingKey] ?: false

135+ }

136+

137+ /** When true, haptic feedback is fired on taps and confirmations. Defaults to true (the

138+ * existing behavior). An in-app toggle lets users disable haptics without turning off

139+ * system-wide vibration. Read by a CompositionLocal that gates haptic calls. */

140+ val hapticsEnabled: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

141+ prefs[hapticsEnabledKey] ?: true

142+ }

143+

144+ /** When true, animations and transitions are limited (collapsed to instant/snap).

145+ * Defaults to false — the app already honors the system Developer Options animator

146+ * scale, but this gives users an in-app toggle without disabling motion OS-wide.

147+ * Read by a CompositionLocal that gates animation specs. */

148+ val reducedMotion: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

149+ prefs[reducedMotionKey] ?: false

150+ }

151+

152+ /** Override the app language (an ISO 639-1 code like "en" or "es", or empty for the

153+ * system default). Applied via AppCompat's per-app language API so the OS can

154+ * handle locale resolution without an app restart on Android 13+. */

155+ val languageOverride: Flow<String> = appContext.settingsDataStore.data.map { prefs ->

156+ prefs[languageOverrideKey] ?: ""

157+ }

158+

159+ /** Granular notification toggles. Each gates a notification channel's posting so a user

160+ * can mute specific notification types in-app (in addition to the OS channel controls).

161+ * Default true for all (matching the prior "always post" behavior). */

162+ val notifRunComplete: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

163+ prefs[notifRunCompleteKey] ?: true

164+ }

165+ val notifPermission: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

166+ prefs[notifPermissionKey] ?: true

167+ }

168+ val notifError: Flow<Boolean> = appContext.settingsDataStore.data.map { prefs ->

169+ prefs[notifErrorKey] ?: true

170+ }

171+

172+ /** Remappable swipe actions for the session list. Stored as the SwipeAction enum name;

173+ * an unknown value falls back to the default. Defaults: left=DELETE, right=ARCHIVE

174+ * (matching the prior hardcoded behavior). */

175+ val swipeLeftAction: Flow<String> = appContext.settingsDataStore.data.map { prefs ->

176+ prefs[swipeLeftActionKey] ?: SwipeAction.DELETE.name

177+ }

178+ val swipeRightAction: Flow<String> = appContext.settingsDataStore.data.map { prefs ->

179+ prefs[swipeRightActionKey] ?: SwipeAction.ARCHIVE.name

180+ }

181+

182+ suspend fun setThemeMode(mode: ThemeMode) {

183+ appContext.settingsDataStore.edit { it[themeKey] = mode.name }

184+ }

185+

186+ suspend fun setDynamicColor(enabled: Boolean) {

187+ appContext.settingsDataStore.edit { it[dynamicColorKey] = enabled }

188+ }

189+

190+ suspend fun setSendOnEnter(enabled: Boolean) {

191+ appContext.settingsDataStore.edit { it[sendOnEnterKey] = enabled }

192+ }

193+

194+ suspend fun setAppLock(enabled: Boolean) {

195+ appContext.settingsDataStore.edit { it[appLockKey] = enabled }

196+ }

197+

198+ suspend fun setAppLockReLockSeconds(seconds: Int) {

199+ appContext.settingsDataStore.edit {

200+ it[appLockReLockSecondsKey] = APP_LOCK_RELOCK_OPTIONS_SECONDS.minBy { k -> Math.abs(k - seconds) }

201+ }

202+ }

203+

204+ suspend fun setChatTextScale(scale: Float) {

205+ appContext.settingsDataStore.edit {

206+ it[chatTextScaleKey] = scale.coerceIn(MIN_CHAT_TEXT_SCALE, MAX_CHAT_TEXT_SCALE)

207+ }

208+ }

209+ suspend fun setCodeWrap(enabled: Boolean) {

210+ appContext.settingsDataStore.edit {

211+ it[codeWrapKey] = enabled

212+ }

213+ }

214+

215+ suspend fun setSessionSortMode(mode: String) {

216+ appContext.settingsDataStore.edit { it[sessionSortModeKey] = mode }

217+ }

218+

219+ suspend fun setSessionSortDescending(descending: Boolean) {

220+ appContext.settingsDataStore.edit { it[sessionSortDescendingKey] = descending }

221+ }

222+ suspend fun setSessionShowArchived(show: Boolean) {

223+ appContext.settingsDataStore.edit {

224+ it[sessionShowArchivedKey] = show

225+ }

226+ }

227+

228+ suspend fun setPreferredModelId(modelId: String) {

229+ appContext.settingsDataStore.edit {

230+ if (modelId.isEmpty()) it.remove(preferredModelIdKey) else it[preferredModelIdKey] = modelId

231+ }

232+ }

233+

234+ suspend fun setPreferredAgentName(agentName: String) {

235+ appContext.settingsDataStore.edit {

236+ if (agentName.isEmpty()) it.remove(preferredAgentNameKey) else it[preferredAgentNameKey] = agentName

237+ }

238+ }

239+

240+ suspend fun setCompactMessageSpacing(enabled: Boolean) {

241+ appContext.settingsDataStore.edit {

242+ it[compactMessageSpacingKey] = enabled

243+ }

244+ }

245+

246+ suspend fun setHapticsEnabled(enabled: Boolean) {

247+ appContext.settingsDataStore.edit { it[hapticsEnabledKey] = enabled }

248+ }

249+

250+ suspend fun setReducedMotion(enabled: Boolean) {

251+ appContext.settingsDataStore.edit { it[reducedMotionKey] = enabled }

252+ }

253+

254+ suspend fun setLanguageOverride(code: String) {

255+ appContext.settingsDataStore.edit {

256+ if (code.isEmpty()) it.remove(languageOverrideKey) else it[languageOverrideKey] = code

257+ }

258+ }

259+

260+ suspend fun setNotifRunComplete(enabled: Boolean) {

261+ appContext.settingsDataStore.edit { it[notifRunCompleteKey] = enabled }

262+ }

263+ suspend fun setNotifPermission(enabled: Boolean) {

264+ appContext.settingsDataStore.edit { it[notifPermissionKey] = enabled }

265+ }

266+ suspend fun setNotifError(enabled: Boolean) {

267+ appContext.settingsDataStore.edit { it[notifErrorKey] = enabled }

268+ }

269+

270+ suspend fun setSwipeLeftAction(action: SwipeAction) {

271+ appContext.settingsDataStore.edit { it[swipeLeftActionKey] = action.name }

272+ }

273+ suspend fun setSwipeRightAction(action: SwipeAction) {

274+ appContext.settingsDataStore.edit { it[swipeRightActionKey] = action.name }

275+ }

276+}

277+

278+/** Remappable swipe actions for the session list. NONE disables the swipe entirely. */

279+enum class SwipeAction { DELETE, ARCHIVE, MARK_READ, NONE }

app/src/main/java/soy/iko/opencode/di/AppContainer.ktnew file+1570

@@ -0,0 +1,1570 @@

1+package soy.iko.opencode.di

2+

3+import android.content.Context

4+import android.net.ConnectivityManager

5+import android.net.Network

6+import android.net.NetworkCapabilities

7+import android.net.NetworkRequest

8+import android.util.Log

9+import soy.iko.opencode.data.model.AssistantMessage

10+import soy.iko.opencode.data.model.BusEvent

11+import soy.iko.opencode.data.model.FilePromptPart

12+import soy.iko.opencode.data.model.MessagePartUpdated

13+import soy.iko.opencode.data.model.MessageUpdated

14+import soy.iko.opencode.data.model.Permission

15+import soy.iko.opencode.data.model.PermissionReplied

16+import soy.iko.opencode.data.model.PermissionResponse

17+import soy.iko.opencode.data.model.PermissionUpdated

18+import soy.iko.opencode.data.model.StepFinishPart

19+import soy.iko.opencode.data.model.ServerProfile

20+import soy.iko.opencode.data.model.SessionError

21+import soy.iko.opencode.data.model.SessionIdle

22+import soy.iko.opencode.data.model.ToolPart

23+import soy.iko.opencode.data.model.TODO_WRITE_TOOL

24+import soy.iko.opencode.data.model.parseTodos

25+import soy.iko.opencode.data.model.statusEnum

26+import soy.iko.opencode.data.model.TodoStatus

27+import soy.iko.opencode.data.model.inputElement

28+import soy.iko.opencode.data.repo.AttachmentDraftStore

29+import soy.iko.opencode.data.repo.BackupManager

30+import soy.iko.opencode.data.repo.DraftStore

31+import soy.iko.opencode.data.repo.ErrorKind

32+import soy.iko.opencode.data.repo.FileBrowserPrefs

33+import soy.iko.opencode.data.repo.MessageCacheStore

34+import soy.iko.opencode.data.repo.OutboxMessage

35+import soy.iko.opencode.data.repo.OutboxStore

36+import soy.iko.opencode.data.repo.RecentModelsStore

37+import soy.iko.opencode.data.repo.SearchHistoryStore

38+import soy.iko.opencode.data.repo.SessionPrefsStore

39+import soy.iko.opencode.data.repo.SessionRepository

40+import soy.iko.opencode.data.repo.ProfileStore

41+import soy.iko.opencode.data.repo.SettingsStore

42+import soy.iko.opencode.data.repo.classifyError

43+import soy.iko.opencode.data.repo.responseStatusCode

44+import soy.iko.opencode.data.network.EventStreamClient

45+import soy.iko.opencode.data.network.HttpClientFactory

46+import soy.iko.opencode.data.network.NetworkConfig

47+import soy.iko.opencode.data.network.OpencodeApiClient

48+import soy.iko.opencode.notification.NotificationChannels

49+import soy.iko.opencode.notification.RunForegroundService

50+import soy.iko.opencode.util.safeExceptionSummary

51+import soy.iko.opencode.notification.SessionNotifications

52+import soy.iko.opencode.R

53+import soy.iko.opencode.util.runCatchingCancellable

54+import kotlinx.coroutines.CoroutineScope

55+import kotlinx.coroutines.Dispatchers

56+import kotlinx.coroutines.ExperimentalCoroutinesApi

57+import kotlinx.coroutines.SupervisorJob

58+import kotlinx.coroutines.cancel

59+import kotlinx.coroutines.delay

60+import kotlinx.coroutines.flow.MutableSharedFlow

61+import kotlinx.coroutines.flow.MutableStateFlow

62+import kotlinx.coroutines.flow.SharedFlow

63+import kotlinx.coroutines.flow.StateFlow

64+import kotlinx.coroutines.flow.asSharedFlow

65+import kotlinx.coroutines.flow.asStateFlow

66+import kotlinx.coroutines.flow.collectLatest

67+import kotlinx.coroutines.flow.combine

68+import kotlinx.coroutines.flow.debounce

69+import kotlinx.coroutines.flow.distinctUntilChanged

70+import kotlinx.coroutines.flow.drop

71+import kotlinx.coroutines.flow.emptyFlow

72+import kotlinx.coroutines.flow.first

73+import kotlinx.coroutines.Job

74+import kotlinx.coroutines.flow.flatMapLatest

75+import kotlinx.coroutines.flow.map

76+import kotlinx.coroutines.flow.update

77+import kotlinx.coroutines.isActive

78+import kotlinx.coroutines.launch

79+import kotlinx.coroutines.sync.Mutex

80+import kotlinx.coroutines.sync.withLock

81+import kotlinx.coroutines.withTimeoutOrNull

82+import java.util.concurrent.atomic.AtomicBoolean

83+

84+/**

85+ * Result of probing a server URL to check connectivity and whether authentication

86+ * is required, without persisting a profile or opening a long-lived connection.

87+ */

88+sealed class ProbeResult {

89+ /** Server is reachable and accepts unauthenticated requests. */

90+ object Reachable : ProbeResult()

91+

92+ /** Server is reachable but rejected the probe with an authentication error. */

93+ object NeedsAuth : ProbeResult()

94+

95+ /** Server could not be reached (host unresolved, connection refused, timeout, etc.). */

96+ data class Unreachable(val error: String) : ProbeResult()

97+}

98+

99+/**

100+ * Hand-written service locator held by [soy.iko.opencode.OpencodeApp]. Owns the

101+ * process-wide singletons and the currently active [OpencodeConnection].

102+ */

103+open class AppContainer private constructor(

104+ private val appContext: Context?,

105+ private val skipInit: Boolean,

106+ @Suppress("unused") private val testMode: Boolean,

107+) {

108+ constructor(context: Context) : this(context.applicationContext, false, false)

109+ protected constructor() : this(null, true, true)

110+

111+ private val appScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)

112+ open val profileStore: ProfileStore by lazy { ProfileStore(appContext!!) }

113+ open val settingsStore: SettingsStore by lazy { SettingsStore(appContext!!) }

114+ open val draftStore: DraftStore by lazy { DraftStore(appContext!!, appScope) }

115+ open val attachmentDraftStore: AttachmentDraftStore by lazy { AttachmentDraftStore(appContext!!) }

116+ open val sessionPrefsStore: SessionPrefsStore by lazy { SessionPrefsStore(appContext!!) }

117+ open val messageCacheStore: MessageCacheStore by lazy { MessageCacheStore(appContext!!) }

118+ open val outboxStore: OutboxStore by lazy { OutboxStore(appContext!!) }

119+ open val searchHistoryStore: SearchHistoryStore by lazy { SearchHistoryStore(appContext!!) }

120+ open val recentModelsStore: RecentModelsStore by lazy { RecentModelsStore(appContext!!) }

121+ open val fileBrowserPrefs: FileBrowserPrefs by lazy { FileBrowserPrefs(appContext!!) }

122+ open val backupManager: BackupManager by lazy { BackupManager(profileStore, settingsStore, sessionPrefsStore) }

123+

124+ /** True while the outbox is actively flushing queued messages to the server, so the UI

125+ * can show a "sending queued messages…" indicator. */

126+ private val _outboxSending = MutableStateFlow(false)

127+ open val outboxSending: StateFlow<Boolean> = _outboxSending.asStateFlow()

128+

129+ /** Bumped to nudge an immediate outbox flush (after enqueue, or a manual "Send now"),

130+ * independent of connection/online changes. */

131+ private val _outboxFlushTrigger = MutableStateFlow(0)

132+ open fun flushOutbox() { _outboxFlushTrigger.update { it + 1 } }

133+

134+ private val _activeConnection = MutableStateFlow<OpencodeConnection?>(null)

135+ open val activeConnection: StateFlow<OpencodeConnection?> = _activeConnection.asStateFlow()

136+

137+ /** True while a background auto-reconnect to the most-recent server is in flight. */

138+ private val _reconnecting = MutableStateFlow(false)

139+ open val reconnecting: StateFlow<Boolean> = _reconnecting.asStateFlow()

140+

141+ /**

142+ * Set once a startup auto-reconnect succeeds. The server list collects this and

143+ * (once) navigates straight to the session list so a returning user skips it.

144+ * [consumeAutoConnect] guards against re-firing on screen re-entry.

145+ */

146+ private val _autoConnectDone = MutableStateFlow(false)

147+ open val autoConnectDone: StateFlow<Boolean> = _autoConnectDone.asStateFlow()

148+ private val autoConnectConsumed = AtomicBoolean(false)

149+ open fun consumeAutoConnect(): Boolean = autoConnectConsumed.compareAndSet(false, true)

150+

151+ /** Text shared into the app (ACTION_SEND), prefilled into a session draft. */

152+ private val _pendingShare = MutableStateFlow<String?>(null)

153+ open val pendingShare: StateFlow<String?> = _pendingShare.asStateFlow()

154+ open fun setPendingShare(text: String) { _pendingShare.value = text }

155+ open fun consumePendingShare(): String? {

156+ val current = _pendingShare.value ?: return null

157+ return if (_pendingShare.compareAndSet(current, null)) current else null

158+ }

159+

160+ /** Image/file Uris (as strings) shared into the app, staged as attachments in the next

161+ * opened session. Consumed once by the first ChatScreen to compose after the share. */

162+ private val _pendingSharedMedia = MutableStateFlow<List<String>>(emptyList())

163+ open val pendingSharedMedia: StateFlow<List<String>> = _pendingSharedMedia.asStateFlow()

164+ open fun setPendingSharedMedia(uris: List<String>) { _pendingSharedMedia.value = uris }

165+ open fun consumePendingSharedMedia(): List<String> {

166+ val current = _pendingSharedMedia.value

167+ if (current.isEmpty()) return emptyList()

168+ return if (_pendingSharedMedia.compareAndSet(current, emptyList())) current else emptyList()

169+ }

170+

171+ /**

172+ * Set from an external "New session" trigger (launcher shortcut / QS tile). The nav host

173+ * consumes it once connected, creating a fresh session and opening it. Uses a counter

174+ * (not a boolean) so re-tapping the shortcut while a prior request is still pending

175+ * increments the value and re-fires the LaunchedEffect — a boolean StateFlow wouldn't

176+ * emit when set to the same value, making the request unrecoverable by re-tapping.

177+ */

178+ private val _pendingNewSession = MutableStateFlow(0)

179+ open val pendingNewSession: StateFlow<Int> = _pendingNewSession.asStateFlow()

180+ open fun requestNewSession() { _pendingNewSession.update { it + 1 } }

181+ open fun consumePendingNewSession(): Boolean {

182+ while (true) {

183+ val current = _pendingNewSession.value

184+ if (current == 0) return false

185+ if (_pendingNewSession.compareAndSet(current, current - 1)) return true

186+ }

187+ }

188+

189+ /** A one-shot signal to navigate to the Diagnostics screen (e.g. from the crash-relaunch

190+ * prompt). Consumed by OpencodeApp's NavHost. */

191+ private val _pendingDiagnostics = MutableStateFlow(false)

192+ open val pendingDiagnostics: StateFlow<Boolean> = _pendingDiagnostics.asStateFlow()

193+ open fun requestDiagnostics() { _pendingDiagnostics.value = true }

194+ open fun consumePendingDiagnostics(): Boolean = _pendingDiagnostics.compareAndSet(true, false)

195+

196+ /**

197+ * A session id to open from an external trigger (a notification tap or a deep link),

198+ * paired with the originating server's profile id (if known) so a tap after the user

199+ * has switched servers routes back to the server that ran the session. The nav host

200+ * consumes it once a connection is active (switching to [profileId] first if needed).

201+ */

202+ data class PendingOpenSession(val sessionId: String, val profileId: String?)

203+

204+ private val _pendingOpenSession = MutableStateFlow<PendingOpenSession?>(null)

205+ open val pendingOpenSession: StateFlow<PendingOpenSession?> = _pendingOpenSession.asStateFlow()

206+ open fun requestOpenSession(id: String, profileId: String? = null) {

207+ _pendingOpenSession.value = PendingOpenSession(id, profileId)

208+ }

209+ open fun consumePendingOpenSession(): PendingOpenSession? {

210+ val current = _pendingOpenSession.value ?: return null

211+ return if (_pendingOpenSession.compareAndSet(current, null)) current else null

212+ }

213+

214+ /**

215+ * A file path requested to be opened (via deep link `opencode://file/{path}` or future

216+ * entry points), consumed by the NavHost to navigate to the file viewer. Mirrors the

217+ * session open-signal pattern: a StateFlow the NavHost observes, drained atomically.

218+ */

219+ private val _pendingOpenFile = MutableStateFlow<String?>(null)

220+ open val pendingOpenFile: StateFlow<String?> = _pendingOpenFile.asStateFlow()

221+ open fun requestOpenFile(path: String) { _pendingOpenFile.value = path }

222+ open fun consumePendingOpenFile(): String? {

223+ val current = _pendingOpenFile.value ?: return null

224+ return if (_pendingOpenFile.compareAndSet(current, null)) current else null

225+ }

226+

227+ /**

228+ * The session the user is currently viewing (or null when not in a chat). Drives the

229+ * unread tracker: messages arriving for any *other* session mark it unread, and

230+ * opening a session clears its unread state.

231+ */

232+ private val _currentSession = MutableStateFlow<String?>(null)

233+ open val currentSession: StateFlow<String?> = _currentSession.asStateFlow()

234+

235+ /** Session ids that received activity while not being viewed, mapped to the count

236+ * of unread message events. A count (not just a presence set) lets the session

237+ * list badge show "3 unread" instead of a bare dot, so the user can tell whether

238+ * one reply or a whole burst arrived. */

239+ private val _unread = MutableStateFlow<Map<String, Int>>(emptyMap())

240+ open val unread: StateFlow<Map<String, Int>> = _unread.asStateFlow()

241+

242+ /** Session ids the user has muted. A muted session doesn't badge unread (the count is

243+ * still tracked internally so unmuting can restore it, but the badge and completion

244+ * notification are suppressed). Persisted via SessionPrefsStore so the choice survives

245+ * process death. */

246+ private val _mutedSessions = MutableStateFlow<Set<String>>(emptySet())

247+ open val mutedSessions: StateFlow<Set<String>> = _mutedSessions.asStateFlow()

248+

249+ /** True when any assistant run is actively streaming across all sessions. Drives the

250+ * disconnect confirmation on the session list (disconnecting mid-run kills it). */

251+ private val _anyRunActive = MutableStateFlow(false)

252+ open val anyRunActive: StateFlow<Boolean> = _anyRunActive.asStateFlow()

253+

254+ /** Session ids currently streaming an assistant run, surfaced so the session list can

255+ * badge the row whose run is active. Mirrors [activeRuns] as an immutable snapshot so

256+ * Compose can skip recomposition when the set hasn't changed. */

257+ private val _runningSessionIds = MutableStateFlow<Set<String>>(emptySet())

258+ open val runningSessionIds: StateFlow<Set<String>> = _runningSessionIds.asStateFlow()

259+

260+ /** Latest task-plan progress text for the active run (e.g. "Step 2 of 5"), surfaced in

261+ * the foreground-service notification so the user can see what the agent is working on

262+ * without opening the app. Null when no plan is available or no run is active. */

263+ private val _runProgressText = MutableStateFlow<String?>(null)

264+ open val runProgressText: StateFlow<String?> = _runProgressText.asStateFlow()

265+

266+ /** Whether the device currently has network connectivity. Distinct from the SSE

267+ * connection state so the UI can tell "you're offline" (device) from "server

268+ * unreachable" (credentials/host). Updated by the [networkCallback]. */

269+ private val _isOnline = MutableStateFlow(true)

270+ open val isOnline: StateFlow<Boolean> = _isOnline.asStateFlow()

271+

272+ /** Whether a foreground Activity is currently showing. Distinct from [currentSession],

273+ * which stays set while the app is merely backgrounded (the chat screen isn't disposed

274+ * when the user locks their phone). Permission/completion notifications need the real

275+ * foreground signal so they still fire for a session the user "has open" but has walked

276+ * away from — the core of the run-in-the-background use case. Set from MainActivity's

277+ * onStart/onStop. */

278+ private val _isForeground = MutableStateFlow(false)

279+ open val isForeground: StateFlow<Boolean> = _isForeground.asStateFlow()

280+ open fun setForeground(foreground: Boolean) { _isForeground.value = foreground }

281+

282+ /** True when the user is actively looking at [sessionId] (app foregrounded AND that

283+ * session is the one on screen), so an in-app affordance (the permission dialog) is

284+ * handling it and a notification would be redundant. */

285+ private fun isActivelyViewing(sessionId: String): Boolean =

286+ _isForeground.value && sessionId == _currentSession.value

287+

288+ open fun setCurrentSession(id: String?) {

289+ _currentSession.value = id

290+ if (id != null) {

291+ _unread.update { it - id }

292+ unreadMessageIds.remove(id)

293+ appContext?.let {

294+ SessionNotifications.cancel(it, id)

295+ SessionNotifications.cancelPermission(it, id)

296+ SessionNotifications.cancelError(it, id)

297+ }

298+ }

299+ }

300+

301+ /** Clear unread badge and dedup set for a deleted session so its stale count doesn't

302+ * linger in the session list badge or leak memory until the next connect/disconnect. */

303+ open fun clearUnread(id: String) {

304+ _unread.update { it - id }

305+ unreadMessageIds.remove(id)

306+ }

307+

308+ /** Mark a session as read (clear its unread badge) — the "Mark read" notification action.

309+ * Updates the launcher-icon badge directly (not just the in-memory [StateFlow]) so a

310+ * "Mark read" tap while the app is backgrounded — when [SessionListScreen]'s

311+ * `LaunchedEffect(totalUnread)` collector isn't running — still decrements the badge.

312+ * Without this, the notification dismisses but the launcher badge shows a stale count

313+ * until the app is next foregrounded. */

314+ open fun markSessionRead(id: String) {

315+ clearUnread(id)

316+ appContext?.let { ctx ->

317+ SessionNotifications.updateUnreadBadge(ctx, _unread.value.values.sum())

318+ }

319+ }

320+

321+ /** Mark a session as unread with a count of 1 (or restore a prior count). Used by the

322+ * session list's "Mark as unread" overflow action so a user can re-flag a conversation

323+ * they want to revisit. No-op when the session is the one currently being viewed — a

324+ * viewed session clears its own unread badge via [setCurrentSession], so marking it

325+ * unread would race and immediately clear. Muted sessions are still marked (the count is

326+ * tracked so unmuting restores it) but the list UI hides the badge while muted. */

327+ open fun markSessionUnread(id: String, count: Int = 1) {

328+ if (id == _currentSession.value) return

329+ _unread.update { it + (id to count) }

330+ }

331+

332+ /** Toggle a session's mute state. A muted session suppresses the unread badge and the

333+ * completion notification so a noisy conversation doesn't interrupt. Persisted

334+ * via SessionPrefsStore so it survives process death. */

335+ fun toggleSessionMute(id: String) {

336+ // Use atomic update so a concurrent prefs reload (_mutedSessions.value = ids from

337+ // sessionPrefsStore.muted.collect) can't clobber this toggle mid read-modify-write.

338+ var nowMuted = false

339+ _mutedSessions.update { current ->

340+ nowMuted = id !in current

341+ if (nowMuted) current + id else current - id

342+ }

343+ appContext?.let {

344+ appScope.launch {

345+ runCatchingCancellable { sessionPrefsStore.setMuted(id, nowMuted) }

346+ }

347+ }

348+ }

349+

350+ /** True when [id] is muted (unread badge and completion notification suppressed). */

351+ fun isSessionMuted(id: String): Boolean = id in _mutedSessions.value

352+

353+ /** Clear every session's unread badge at once — the session list's "Mark all read" action. */

354+ open fun clearAllUnread() {

355+ _unread.update { emptyMap() }

356+ }

357+

358+ /** Restore a session's unread badge after a failed server switch reconnects.

359+ * Preserves the prior [count] so a session badged with "5 unread" before the

360+ * switch attempt still shows 5 (not 1) after the restore. No-op for the session

361+ * the user is currently viewing, since a viewed session is never badged. */

362+ open fun restoreUnread(id: String, count: Int) {

363+ if (id != _currentSession.value) {

364+ _unread.update { it + (id to count) }

365+ }

366+ }

367+

368+ /** Resolve a localized string — view models reach resources through the container. */

369+ open fun string(id: Int, vararg formatArgs: Any): String {

370+ if (appContext == null) return ""

371+ return if (formatArgs.isEmpty()) appContext.getString(id) else appContext.getString(id, *formatArgs)

372+ }

373+

374+ /**

375+ * Convert a throwable into a user-facing message. Classifies the error by concrete

376+ * type (network, timeout, HTTP status) rather than string-matching class names, so

377+ * the message reflects what actually went wrong without leaking internal URLs/state.

378+ */

379+ open fun friendlyError(t: Throwable): String =

380+ friendlyErrorFor(t, activeConnection.value?.profile?.baseUrl.orEmpty())

381+

382+ /**

383+ * Same classification as [friendlyError] but accepts an explicit base URL, so callers

384+ * that aren't operating on the active connection (e.g. [probeServer]) can still

385+ * produce a user-facing message with the right server address.

386+ */

387+ open fun friendlyErrorFor(t: Throwable, baseUrl: String): String =

388+ when (classifyError(t)) {

389+ ErrorKind.NOT_REACHABLE, ErrorKind.NETWORK ->

390+ string(R.string.error_not_reachable, baseUrl)

391+ ErrorKind.TIMEOUT -> string(R.string.error_timeout)

392+ ErrorKind.SERVER -> string(R.string.error_server)

393+ // Show only the HTTP status (e.g. 401, 404) — never the request URL,

394+ // which a ClientRequestException carries in its message and which we

395+ // promised not to leak (it can include auth or internal paths).

396+ ErrorKind.CLIENT -> {

397+ val code = responseStatusCode(t)

398+ when (code) {

399+ // Auth failures reuse the connection banner text: the request itself is

400+ // fine, the credentials aren't, so the fix is re-editing the profile —

401+ // not "request failed (401)" which implies an opaque program error.

402+ 401, 403 -> string(R.string.connection_failed)

403+ 404 -> string(R.string.error_not_found)

404+ else -> code?.let { string(R.string.error_client_status, it) }

405+ ?: string(R.string.error_generic)

406+ }

407+ }

408+ ErrorKind.UNKNOWN -> string(R.string.error_generic)

409+ }

410+

411+ /**

412+ * Drive the [RunForegroundService] from the process-lived [appScope] rather than from the

413+ * Activity's composition. Previously the start/stop was wired to a

414+ * `collectAsStateWithLifecycle` collector in the root composable, which pauses while the

415+ * Activity is STOPPED — so a run *started while backgrounded* (e.g. via the notification

416+ * inline-reply) never acquired foreground priority and its long-lived SSE stream could be

417+ * killed by Doze, and a run that *ended* while backgrounded left the "working…"

418+ * notification lingering until the app was reopened. Collecting here reacts to

419+ * [anyRunActive] regardless of Activity state.

420+ */

421+ private fun observeRunForegroundService() {

422+ val ctx = appContext ?: return

423+ appScope.launch {

424+ // Debounce so a run that starts then fails/idles almost immediately doesn't

425+ // dispatch startForegroundService() then stopService() back-to-back — if the stop

426+ // wins that race before the service calls startForeground(), Android raises the

427+ // "did not then call startForeground()" crash ~5s later. Collapsing the window

428+ // emits only the settled state; distinctUntilChanged drops a no-op re-emit when a

429+ // brief true→false→true flurry settles back to the value already applied.

430+ anyRunActive

431+ .debounce(NetworkConfig.runForegroundDebounceMs)

432+ .distinctUntilChanged()

433+ .collect { active ->

434+ if (active) {

435+ // When exactly one run is active, resolve its title (and id, for the

436+ // Stop action) so the notification identifies which session is running

437+ // and can be aborted from the notification. Multiple concurrent runs

438+ // fall back to the generic title (naming one would be misleading).

439+ val activeId = synchronized(activeRuns) {

440+ activeRuns.toList().singleOrNull()

441+ }

442+ val title = activeId?.let { sid ->

443+ runCatchingCancellable {

444+ activeConnection.value?.repository?.listSessions()

445+ ?.firstOrNull { it.id == sid }?.displayTitle

446+ }.getOrNull()

447+ }

448+ val profileId = activeConnection.value?.profile?.id

449+ RunForegroundService.start(ctx, title, activeId, profileId, _runProgressText.value)

450+ } else {

451+ RunForegroundService.stop(ctx)

452+ }

453+ }

454+ }

455+ // Separate collector: update the FGS notification's progress text ("Step 2 of 5")

456+ // as the agent works through its task plan. Re-sends the service intent with the

457+ // updated progress, which the service uses to rebuild the notification.

458+ appScope.launch {

459+ _runProgressText

460+ .drop(1) // skip initial value — the anyRunActive collector handles the first start

461+ .distinctUntilChanged()

462+ .collect { progress ->

463+ if (_anyRunActive.value) {

464+ val activeId = synchronized(activeRuns) { activeRuns.toList().singleOrNull() }

465+ val title = activeId?.let { sid ->

466+ runCatchingCancellable {

467+ activeConnection.value?.repository?.listSessions()

468+ ?.firstOrNull { it.id == sid }?.displayTitle

469+ }.getOrNull()

470+ }

471+ val profileId = activeConnection.value?.profile?.id

472+ RunForegroundService.start(ctx, title, activeId, profileId, progress)

473+ }

474+ }

475+ }

476+ }

477+

478+ /**

479+ * Post a system notification when the SSE stream hits a non-retryable failure

480+ * ([Failed]/[AuthFailed]) while the app is backgrounded during an active run, so a

481+ * backgrounded user is signaled that their run is stranded (the in-app banner isn't

482+ * visible). The notification is cancelled when the stream reconnects. This closes the

483+ * gap where a user who kicks off a run and backgrounds the app returns hours later to

484+ * find nothing happened and no signal why — the stream parked on a 4xx mid-run and the

485+ * in-app banner was never seen.

486+ */

487+ private fun observeBackgroundedConnectionFailures() {

488+ val ctx = appContext ?: return

489+ appScope.launch {

490+ activeConnection.collectLatest { conn ->

491+ if (conn == null) return@collectLatest

492+ conn.events.state.collect { state ->

493+ when (state) {

494+ EventStreamClient.ConnectionState.Failed,

495+ EventStreamClient.ConnectionState.AuthFailed -> {

496+ // Only notify when the app is backgrounded AND a run was recently

497+ // active (or still is) — a foregrounded user sees the banner, and

498+ // a failure with no run is less actionable.

499+ if (!_isForeground.value && _anyRunActive.value) {

500+ runCatchingCancellable {

501+ SessionNotifications.postConnectionLost(

502+ ctx, conn.profile.displayLabel, conn.profile.id,

503+ )

504+ }.onFailure {

505+ Log.w("AppContainer", "connection-lost notification failed: ${safeExceptionSummary(it)}")

506+ }

507+ }

508+ }

509+ EventStreamClient.ConnectionState.Connected -> {

510+ runCatchingCancellable { SessionNotifications.cancelConnectionLost(ctx) }

511+ }

512+ else -> {}

513+ }

514+ }

515+ }

516+ }

517+ }

518+

519+ /**

520+ * Reconcile active-run tracking on an SSE *reconnect*. A run that completes during a stream

521+ * outage never delivers its `SessionIdle`, so its id would stay in [activeRuns] and pin

522+ * [anyRunActive] (and the foreground service + "working…" notification) on indefinitely. On a

523+ * reconnect we clear the tracking and let live streaming events re-populate it: a genuinely

524+ * in-progress run re-adds itself within moments via [isLiveRunActivity], while a run that

525+ * finished during the outage produces no further live events (its completion arrives only via

526+ * the REST re-seed), so it correctly stays cleared. The first connect of a connection is not a

527+ * reconnect; `connect()` already resets [activeRuns], so only subsequent Connected transitions

528+ * trigger the sweep.

529+ */

530+ private fun observeRunReconcileOnReconnect() {

531+ appScope.launch {

532+ activeConnection.collectLatest { conn ->

533+ if (conn == null) return@collectLatest

534+ var hasConnectedBefore = false

535+ conn.events.state.collect { state ->

536+ if (state == EventStreamClient.ConnectionState.Connected) {

537+ if (hasConnectedBefore) {

538+ synchronized(activeRuns) {

539+ activeRuns.clear()

540+ publishRunState()

541+ }

542+ }

543+ hasConnectedBefore = true

544+ }

545+ }

546+ }

547+ }

548+ }

549+

550+ /**

551+ * Flush the offline outbox whenever there's an active connection and the device is

552+ * online (and on any manual [flushOutbox] nudge). Queued messages are only sent to the

553+ * server they were composed for (matched by profile id), so a reconnect to a different

554+ * server never misfires them against a session id that doesn't exist there. Uses a plain

555+ * `collect` (not collectLatest) so an in-flight send is never cancelled mid-flight and

556+ * send order is preserved; each message carries a stable idempotency key (its persistent

557+ * outbox id) so even a re-send across flushes is deduplicated server-side.

558+ */

559+ private fun observeOutbox() {

560+ appScope.launch {

561+ combine(activeConnection, isOnline, _outboxFlushTrigger) { conn, online, _ -> conn to online }

562+ .collect { (conn, online) ->

563+ if (conn == null || !online) return@collect

564+ flushOutboxNow(conn)

565+ }

566+ }

567+ }

568+

569+ private suspend fun flushOutboxNow(conn: OpencodeConnection) {

570+ val pending = outboxStore.messages.value

571+ .filter { it.profileId == conn.profile.id }

572+ .sortedBy { it.createdAt }

573+ if (pending.isEmpty()) return

574+ _outboxSending.value = true

575+ try {

576+ for (msg in pending) {

577+ val result = runCatchingCancellable {

578+ conn.repository.sendPrompt(

579+ msg.sessionId,

580+ msg.text,

581+ attachments = msg.attachments.map {

582+ FilePromptPart(mime = it.mime, url = it.url, filename = it.filename)

583+ },

584+ model = msg.model,

585+ agent = msg.agent,

586+ // Reuse the persistent outbox id as a stable idempotency key so a

587+ // later flush of a message whose earlier POST reached the server (but

588+ // whose response was lost) is deduplicated server-side instead of

589+ // starting a duplicate agent run.

590+ idempotencyKey = msg.id,

591+ )

592+ }.onFailure {

593+ Log.w("AppContainer", "Outbox flush failed for ${msg.sessionId}: ${safeExceptionSummary(it)}")

594+ }

595+ if (result.isSuccess) {

596+ outboxStore.remove(msg.id)

597+ continue

598+ }

599+ // A permanently-undeliverable message (a non-408/429 4xx — e.g. the target

600+ // session was deleted server-side, yielding a 404) must be dropped, not left at

601+ // the head of the queue. The loop stops at the first failure to preserve send

602+ // order, so a poison message would otherwise block every later queued message

603+ // for this profile forever. Transient failures (offline again, 5xx, 408/429)

604+ // keep the queue intact and retry on the next trigger.

605+ // 401/403 (bad/expired credentials) are NOT permanent: the message itself is

606+ // deliverable once the user fixes the profile. Dropping it would silently lose

607+ // the user's composed offline prompt on a recoverable auth failure. They stay

608+ // in the queue and retry on the next flush after auth is restored.

609+ val status = result.exceptionOrNull()?.let { responseStatusCode(it) }

610+ // Permanent = a non-408/429/401/403 4xx, matching withRetry's non-retryable rule

611+ // except for auth failures, which are recoverable by re-editing the profile.

612+ val permanent = when (status) {

613+ null, 408, 429, 401, 403 -> false

614+ in 400..499 -> true

615+ else -> false

616+ }

617+ if (permanent) {

618+ Log.w(

619+ "AppContainer",

620+ "Dropping undeliverable outbox message ${msg.id} for ${msg.sessionId} (HTTP $status): ${string(R.string.outbox_dropped_text)}",

621+ )

622+ outboxStore.remove(msg.id)

623+ // Surface the dropped reply on the ERROR channel with a distinct title

624+ // ("Message not delivered") so the user understands a queued reply

625+ // couldn't be delivered — not that a run failed (which postError

626+ // implies). Tap routes back to the originating profile's session.

627+ val ctx = appContext

628+ if (ctx != null) {

629+ val title = resolveSessionTitle(msg.sessionId, conn.repository)

630+ runCatchingCancellable {

631+ SessionNotifications.postOutboxDropped(

632+ ctx, msg.sessionId,

633+ title,

634+ conn.profile.id,

635+ )

636+ }.onFailure {

637+ Log.w("AppContainer", "outbox drop notification failed: ${safeExceptionSummary(it)}")

638+ }

639+ }

640+ } else {

641+ break

642+ }

643+ }

644+ } finally {

645+ _outboxSending.value = false

646+ }

647+ }

648+

649+ /** Release resources held for the process lifetime (network callback, app scope). */

650+ open fun shutdown() {

651+ // Cancel the app scope first so any coroutine holding the connection mutex

652+ // (e.g. a connect() suspended on profileStore) is cancelled and releases the

653+ // mutex. Otherwise the runBlocking below would deadlock waiting for a coroutine

654+ // that can't be cancelled until after the runBlocking completes.

655+ appScope.cancel()

656+ // Capture the active connection BEFORE the bounded close attempt so a timeout

657+ // can still close it outside the mutex. Without this, the timeout path would

658+ // null the StateFlow reference without closing the connection — leaking the SSE

659+ // socket, OkHttp pool, and the connection's coroutine scope.

660+ val stuck = _activeConnection.value

661+ var closed = false

662+ // Bounded runBlocking so a stuck mutex or a slow close() can't ANR the app.

663+ // 2 seconds is generous: appScope.cancel() already triggered cancellation of

664+ // any coroutine holding the mutex; we're just waiting for it to unwind.

665+ kotlinx.coroutines.runBlocking {

666+ withTimeoutOrNull(2_000) {

667+ connectionMutex.withLock {

668+ // runCatchingCancellable (not plain runCatching) per the repo convention:

669+ // close() is a suspend function, and withTimeoutOrNull above can cancel

670+ // this block mid-close — plain runCatching would swallow the

671+ // CancellationException, leaving the connection half-closed and falsely

672+ // reporting success via `closed = true`.

673+ runCatchingCancellable { _activeConnection.value?.close() }

674+ _activeConnection.value = null

675+ closed = true

676+ }

677+ }

678+ // If the timeout fired, force-clear the StateFlow so observers see no

679+ // connection. The stuck connection (if any) is closed below, outside the

680+ // mutex, so a slow close() can't ANR — its scope is cancelled and the JVM

681+ // exit reaps any remaining sockets.

682+ _activeConnection.value = null

683+ }

684+ if (!closed && stuck != null) {

685+ // The timeout path fired (the locked close didn't complete). Cancel the

686+ // stuck connection's scope directly. close() suspends (scopeJob.join), so

687+ // wrap in a bounded runBlocking that can't ANR — at this point the app is

688+ // shutting down, so reaping is best-effort.

689+ // runCatchingCancellable: withTimeoutOrNull can cancel stuck.close() mid-flight,

690+ // and plain runCatching would swallow the CancellationException — same invariant

691+ // as the locked close above.

692+ runCatchingCancellable {

693+ kotlinx.coroutines.runBlocking {

694+ kotlinx.coroutines.withTimeoutOrNull(1_000) { stuck.close() }

695+ }

696+ }

697+ }

698+ val cm = appContext?.getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager

699+ networkCallback?.let { runCatching { cm?.unregisterNetworkCallback(it) } }

700+ if (!skipInit) soy.iko.opencode.data.repo.CrashLogger.get(appContext!!).shutdown()

701+ if (!skipInit) draftStore.shutdown()

702+ }

703+

704+ /**

705+ * Watch the SSE bus for new message activity and badge any session that isn't

706+ * currently open. This powers the unread dot on the session list so the user can

707+ * tell which conversations got a reply while they were elsewhere.

708+ *

709+ * Uses [flatMapLatest] so a server switch (which replaces the active connection)

710+ * re-subscribes to the new event stream and drops the old one.

711+ */

712+ @OptIn(ExperimentalCoroutinesApi::class)

713+ private fun observeMessageActivity() {

714+ appScope.launch {

715+ // Retry the observer if it fails for any reason (transient flow exception,

716+ // cancellation due to scope issues). Without this, a single failure would

717+ // permanently disable unread tracking and completion notifications.

718+ while (isActive) {

719+ runCatchingCancellable {

720+ activeConnection

721+ .flatMapLatest { conn ->

722+ // Capture the originating connection so notification coroutines

723+ // resolve titles and route permission responses against THIS

724+ // server, not whichever happens to be active when they resume.

725+ // A server switch during a listSessions() round-trip would

726+ // otherwise resolve the title (or POST the permission reply)

727+ // against the new server, where the session/permission doesn't

728+ // exist — showing an opaque id or silently losing the reply.

729+ conn?.events?.events?.map { conn to it } ?: emptyFlow()

730+ }

731+ .collect { (conn, event) ->

732+ // A permission request needs the user's approval. Post a heads-up

733+ // notification (with Allow/Reject actions) unless the user is actively

734+ // viewing this session, where the in-app permission dialog handles it.

735+ if (event is PermissionUpdated) {

736+ val psid = event.properties.sessionID.takeIf { it.isNotBlank() } ?: return@collect

737+ if (!isActivelyViewing(psid)) appScope.launch { notifyPermission(event.properties, conn) }

738+ return@collect

739+ }

740+ // The permission was answered (in-app, from the notification, or

741+ // auto-resolved): clear its heads-up notification.

742+ if (event is PermissionReplied) {

743+ val psid = event.properties.sessionID?.takeIf { it.isNotBlank() } ?: return@collect

744+ appContext?.let { SessionNotifications.cancelPermission(it, psid) }

745+ return@collect

746+ }

747+ // A run failed. Clear its active-run tracking (an error isn't always

748+ // followed by a SessionIdle) and notify unless it's being viewed.

749+ // The notification is NOT gated on wasRunning: activeRuns is populated

750+ // only by SSE streaming events (MessagePartUpdated/MessageUpdated), so a

751+ // run that errors before any streaming started (e.g. the model is

752+ // unavailable, the server fails to create the assistant message) never

753+ // entered the set and wasRunning would be false — silently dropping the

754+ // error notification for a backgrounded user. SessionError itself is the

755+ // server's signal that a run failed, so notify on any error for a session

756+ // the user isn't actively viewing.

757+ if (event is SessionError) {

758+ val esid = event.properties.sessionID ?: return@collect

759+ synchronized(activeRuns) {

760+ if (activeRuns.remove(esid)) publishRunState()

761+ }

762+ if (!isActivelyViewing(esid)) {

763+ appScope.launch { notifySessionError(esid, conn.repository, conn.profile.id) }

764+ }

765+ return@collect

766+ }

767+ // SessionIdle is not "message activity" (don't badge as unread)

768+ // but signals a run finished — fire a completion notification if the

769+ // session isn't currently being viewed and was actively streaming.

770+ if (event is SessionIdle) {

771+ val idleSid = event.properties.sessionID ?: return@collect

772+ // Clear the run state unconditionally — even for the session on

773+ // screen. Gating the removal on `idleSid != currentSession` (as

774+ // this once did) leaks the id in activeRuns and pins anyRunActive

775+ // true forever whenever a run finishes while being viewed. Only

776+ // the completion *notification* is suppressed for the viewed one.

777+ val wasRunning = synchronized(activeRuns) {

778+ activeRuns.remove(idleSid).also { removed ->

779+ if (removed) publishRunState()

780+ }

781+ }

782+ // Clear the progress text when the run finishes.

783+ _runProgressText.value = null

784+ if (wasRunning && !isActivelyViewing(idleSid)) {

785+ // Fire this off the collector's coroutine: notifySessionCompleted

786+ // does a network listSessions() to resolve the title, and blocking

787+ // the shared-event collector here would stall the SharedFlow,

788+ // overflowing its DROP_OLDEST buffer and silently dropping live

789+ // parts/updates for every other subscriber (e.g. the message reducer).

790+ appScope.launch { notifySessionCompleted(idleSid, conn.repository, conn.profile.id) }

791+ }

792+ return@collect

793+ }

794+ // Track the agent's task-plan progress (from todowrite tool calls) so the

795+ // foreground-service notification can show "Step 2 of 5" instead of just a

796+ // chronometer. The todowrite tool sends the full plan on every call, so the

797+ // latest call's input is a complete snapshot.

798+ if (event is MessagePartUpdated) {

799+ val part = event.properties.part

800+ if (part is ToolPart && part.tool.equals(TODO_WRITE_TOOL, ignoreCase = true)) {

801+ val todos = parseTodos(part.state.inputElement())

802+ if (todos.isNotEmpty()) {

803+ val completed = todos.count { it.statusEnum() == TodoStatus.COMPLETED }

804+ _runProgressText.value = appContext?.getString(

805+ soy.iko.opencode.R.string.notif_running_progress,

806+ completed + 1,

807+ todos.size,

808+ )

809+ }

810+ }

811+ }

812+ val sid = sessionOf(event) ?: return@collect

813+ // Re-read currentSession here, right before mutating the badge state:

814+ // the user may have opened this session between when this event was

815+ // enqueued and now (setCurrentSession clears its badge and dedup set).

816+ // A stale earlier check would race a badge — and a dedup entry — back

817+ // in for the session that's actually on screen.

818+ if (sid != _currentSession.value) {

819+ // Track the message id in the dedup set for *every* session (muted or

820+ // not), so unmuting can't re-count messages that arrived while muted.

821+ // The visible badge increment below is gated on !muted so a muted

822+ // conversation doesn't interrupt, but the dedup tracking must not be

823+ // — otherwise the first event after unmute for an already-seen message

824+ // id would pass the counted.add() check (empty set) and re-increment.

825+ val messageId = messageIdOfEvent(event)

826+ val counted = unreadMessageIds.getOrPut(sid) {

827+ java.util.Collections.synchronizedSet(mutableSetOf())

828+ }

829+ val isNewMessage = messageId == null || counted.add(messageId)

830+ if (isNewMessage && sid !in _mutedSessions.value) {

831+ // Skip the unread badge for muted sessions — the count is still

832+ // tracked in unreadMessageIds (so unmuting can't re-count the

833+ // same messages), but the visible badge is suppressed so a muted

834+ // conversation doesn't interrupt. The completion notification is

835+ // also gated on isSessionMuted (see notifySessionCompleted).

836+ _unread.update { current ->

837+ // Guard again inside the atomic update lambda so a retry

838+ // (or an open that landed just now) can't reintroduce the

839+ // badge for the session on screen.

840+ if (sid == _currentSession.value) current

841+ else current + (sid to (current[sid] ?: 0) + 1)

842+ }

843+ }

844+ }

845+ // Track sessions actively streaming so we know which idle events

846+ // represent a finished run worth notifying about.

847+ if (isLiveRunActivity(event)) {

848+ // add() returns true only when the id is genuinely new. Only republish

849+ // the run-state snapshot in that case: a continuously-streaming session

850+ // re-adds its id on every token (hundreds/sec), and republishing each

851+ // time allocates a fresh Set via toSet() + writes two StateFlows under

852+ // the monitor — pure overhead since the set membership didn't change.

853+ // The access-order refresh from LinkedHashSet.add still happens (keeping

854+ // the session from being evicted by a reconnect sweep); we just skip the

855+ // O(set size) snapshot + StateFlow writes when nothing changed.

856+ synchronized(activeRuns) {

857+ if (activeRuns.add(sid)) {

858+ publishRunState()

859+ }

860+ }

861+ }

862+ } }.onFailure { Log.w("AppContainer", "Message activity observer failed, will retry: ${safeExceptionSummary(it)}") }

863+ if (!isActive) break

864+ delay(NetworkConfig.observerRetryDelayMs)

865+ }

866+ }

867+ }

868+

869+ /** True if [event] is live streaming activity worth tracking as an active run. A

870+ * trailing message.updated that lands *after* the run finished (final cost/token totals,

871+ * carrying a completion time) is NOT live streaming: with no further SessionIdle to

872+ * follow it, re-adding the session would pin anyRunActive true indefinitely. */

873+ private fun isLiveRunActivity(event: BusEvent): Boolean {

874+ if (event !is MessagePartUpdated && event !is MessageUpdated) return false

875+ // For MessageUpdated, only an in-flight *assistant* message counts as live activity.

876+ // A UserMessage or UnknownMessage update (e.g. a metadata refresh of an existing user

877+ // message) would otherwise add the session to activeRuns with no following SessionIdle

878+ // to clear it — pinning anyRunActive true and the foreground notification indefinitely.

879+ // Mirrors SessionRepository.isRunActivity's guard exactly.

880+ if (event is MessageUpdated) {

881+ val info = event.properties.info ?: return false

882+ return info is AssistantMessage && !info.isComplete && info.error == null

883+ }

884+ // A step-finish part is the trailing completion marker for a run (it carries the

885+ // final cost/token totals) and arrives after the last stream delta. Like a completed

886+ // message.updated, treating it as live would re-add the session to activeRuns with no

887+ // following SessionIdle to clear it — pinning anyRunActive true indefinitely when such

888+ // a part is replayed/reordered after the run already went idle.

889+ val part = (event as MessagePartUpdated).properties.part

890+ return part !is StepFinishPart

891+ }

892+

893+ /** Snapshot [activeRuns] into [_runningSessionIds] and derive [_anyRunActive] from it.

894+ * MUST be called under the [activeRuns] monitor so the published flag and snapshot can't

895+ * diverge from the set a concurrent SSE add()/remove() is mutating — the same invariant

896+ * [connectLocked]/[teardownActiveLocked] rely on. */

897+ private fun publishRunState() {

898+ _anyRunActive.value = activeRuns.isNotEmpty()

899+ _runningSessionIds.value = activeRuns.toSet()

900+ }

901+

902+ /** Session ids currently streaming an assistant run (best-effort, in-process). Backed by

903+ * an access-order [java.util.LinkedHashMap] so re-adding an already-present id on each

904+ * streaming event refreshes its recency (a plain LinkedHashSet.add is a no-op that does

905+ * NOT reorder). Entries are drained by [SessionIdle] (and cleared wholesale on reconnect

906+ * reconcile); we intentionally do NOT cap the set, because evicting the eldest would drop

907+ * its completion notification when its SessionIdle eventually arrives — a busy server

908+ * with many concurrent runs is still bounded by the server's own concurrency, so growth

909+ * is not unbounded in practice. */

910+ private val activeRuns: MutableSet<String> = java.util.Collections.synchronizedSet(

911+ java.util.Collections.newSetFromMap(java.util.LinkedHashMap<String, Boolean>(16, 0.75f, true)),

912+ )

913+

914+ /** Per non-viewed session, the set of message ids already reflected in its unread

915+ * count. De-duplicates the many streaming events that share one message id so the

916+ * badge counts messages, not deltas. Cleared when a session is viewed or on connect. */

917+ private val unreadMessageIds = java.util.concurrent.ConcurrentHashMap<String, MutableSet<String>>()

918+

919+ /** Guards connect/disconnect so concurrent callers can't leak an old connection. */

920+ private val connectionMutex = Mutex()

921+

922+ /** Only persist the `lastUsed` timestamp if it's older than this, to avoid

923+ * a DataStore + encrypted-prefs write on every rapid reconnect. */

924+ private companion object {

925+ const val LAST_USED_SAVE_THRESHOLD_MS = 60_000L

926+ }

927+

928+ /** Resolve the human-readable title for [sessionId] (best-effort), falling back to the id.

929+ * Uses [originRepo] — the repository of the connection that emitted the event — so a

930+ * server switch during the listSessions() round-trip doesn't resolve the title against

931+ * an unrelated server (showing an opaque id, or worse, a colliding session's title). */

932+ private suspend fun resolveSessionTitle(sessionId: String, originRepo: SessionRepository): String =

933+ runCatchingCancellable {

934+ originRepo.listSessions()?.firstOrNull { it.id == sessionId }?.displayTitle

935+ }.getOrNull() ?: sessionId

936+

937+ /** Resolve the title for [sessionId] (best-effort) and post a completion notification.

938+ * [originProfileId] is the id of the server that ran the session; it's embedded in the

939+ * inline-reply action so a follow-up routes back to THIS server even after the user switches

940+ * connections (mirrors [notifyPermission]). */

941+ private suspend fun notifySessionCompleted(sessionId: String, originRepo: SessionRepository, originProfileId: String) {

942+ val title = resolveSessionTitle(sessionId, originRepo)

943+ // Re-check viewing right before posting: the call site checks !isActivelyViewing(sid)

944+ // at event time, but resolveSessionTitle() suspends on a listSessions() round-trip.

945+ // If the user opened the session in that gap, setCurrentSession already cancelled the

946+ // prior notification — posting a fresh one here would leave a "session ready" heads-up

947+ // lingering while they're already looking at the finished run.

948+ if (isActivelyViewing(sessionId)) return

949+ // Suppress the completion notification for muted sessions — the whole point of muting

950+ // is that a noisy conversation doesn't interrupt.

951+ if (sessionId in _mutedSessions.value) return

952+ appContext?.let { SessionNotifications.postCompleted(it, sessionId, title, originProfileId) }

953+ }

954+

955+ /** Post a heads-up permission notification for [permission], resolving its session title.

956+ * [originConn] is the connection that emitted the permission event — its profile id is

957+ * embedded in the notification so the receiver routes the response back to THIS server. */

958+ private suspend fun notifyPermission(permission: Permission, originConn: OpencodeConnection) {

959+ val sessionId = permission.sessionID.takeIf { it.isNotBlank() } ?: return

960+ val title = resolveSessionTitle(sessionId, originConn.repository)

961+ // Re-check viewing just before posting — see notifySessionCompleted for the race.

962+ if (isActivelyViewing(sessionId)) return

963+ appContext?.let { SessionNotifications.postPermission(it, permission, title, originConn.profile.id) }

964+ }

965+

966+ /** Post an error notification for a failed background run. [originProfileId] is embedded

967+ * in the tap intent so the session opens under the server that ran it, not whichever

968+ * is active when the user taps — mirroring [notifySessionCompleted]. */

969+ private suspend fun notifySessionError(sessionId: String, originRepo: SessionRepository, originProfileId: String) {

970+ val title = resolveSessionTitle(sessionId, originRepo)

971+ // Re-check viewing just before posting — see notifySessionCompleted for the race.

972+ if (isActivelyViewing(sessionId)) return

973+ appContext?.let { SessionNotifications.postError(it, sessionId, title, originProfileId) }

974+ }

975+

976+ /** Respond to a permission from a notification action (Allow once / Always / Reject),

977+ * off any UI. Runs on the process-lived app scope; [onDone] fires when the call resolves

978+ * so the receiver's goAsync() result can finish. Its Boolean is true only when a live

979+ * connection existed AND respondPermission succeeded — the receiver uses it to decide

980+ * whether to dismiss the notification. A missing connection makes the respond a no-op,

981+ * so it must report failure (not success) rather than let the notification vanish with

982+ * the tool left unanswered.

983+ *

984+ * [profileId] is the id of the server that posted the permission request (embedded in

985+ * the notification's PendingIntent). If it doesn't match the currently active

986+ * connection's profile, the response is NOT sent: posting it to a different server

987+ * would 404 (treated as "already resolved" success by respondPermission), dismissing

988+ * the notification while the original server's tool stays paused forever. Reporting

989+ * failure instead leaves the notification up so the user can switch back and retry. */

990+ open fun respondToPermissionFromNotification(

991+ sessionId: String,

992+ permissionId: String,

993+ response: PermissionResponse,

994+ profileId: String?,

995+ onDone: (Boolean) -> Unit,

996+ ) {

997+ appScope.launch {

998+ // Guarantee onDone (so the BroadcastReceiver's goAsync() finishes) even if the

999+ // scope is cancelled mid-call (process shutdown cancels appScope first). Without

1000+ // this, a cancelled scope leaves pending.finish() never called → a receiver ANR

1001+ // and the permission response silently lost.

1002+ var success = false

1003+ try {

1004+ success = runCatchingCancellable {

1005+ val conn = activeConnection.value ?: return@runCatchingCancellable false

1006+ // Route to the originating server only. A mismatch means the user

1007+ // switched servers while the permission was pending; sending the reply

1008+ // to the wrong server would be silently swallowed as a 404-success.

1009+ if (profileId != null && conn.profile.id != profileId) return@runCatchingCancellable false

1010+ conn.api.respondPermission(sessionId, permissionId, response)

1011+ true

1012+ }.onFailure {

1013+ Log.w("AppContainer", "notif permission respond failed: ${safeExceptionSummary(it)}")

1014+ }.getOrDefault(false)

1015+ } finally {

1016+ onDone(success)

1017+ }

1018+ }

1019+ }

1020+

1021+ /** Send a follow-up prompt from a notification's inline reply, off any UI. Uses the

1022+ * server's default model/agent. Routes through the durable [outboxStore] — the same path

1023+ * the in-app composer uses ([soy.iko.opencode.ui.chat.ChatViewModel.enqueueOffline]) —

1024+ * rather than a direct repository send, so a reply composed while disconnected survives to

1025+ * be flushed on reconnect instead of being silently dropped. [flushOutbox] nudges an

1026+ * immediate send when a connection is live, so an online reply still goes out now. [onDone]

1027+ * reports whether the reply was durably enqueued so the receiver only dismisses the

1028+ * notification on success. */

1029+ open fun sendPromptFromNotification(sessionId: String, text: String, originProfileId: String?, onDone: (Boolean) -> Unit) {

1030+ appScope.launch {

1031+ // Guarantee onDone (so the BroadcastReceiver's goAsync() finishes) even if the

1032+ // scope is cancelled mid-call — see respondToPermissionFromNotification above.

1033+ var enqueued = false

1034+ try {

1035+ // Attribute to the profile that POSTED the notification (embedded in the reply

1036+ // intent) so the follow-up is always enqueued against the server that owns

1037+ // [sessionId] — never whichever server happens to be active now, which would POST

1038+ // A's session id to B, 404, and silently drop the reply. Fall back to the active/

1039+ // most-recent profile only for a legacy intent that predates the embedded id.

1040+ val profileId = originProfileId

1041+ ?: activeConnection.value?.profile?.id

1042+ ?: runCatchingCancellable { profileStore.profiles.first().firstOrNull()?.id }.getOrNull()

1043+ enqueued = if (profileId == null) {

1044+ false

1045+ } else {

1046+ runCatchingCancellable {

1047+ outboxStore.enqueue(

1048+ OutboxMessage(

1049+ id = java.util.UUID.randomUUID().toString(),

1050+ profileId = profileId,

1051+ sessionId = sessionId,

1052+ text = text,

1053+ model = null,

1054+ createdAt = System.currentTimeMillis(),

1055+ ),

1056+ )

1057+ }.onFailure {

1058+ Log.w("AppContainer", "notif reply enqueue failed: ${safeExceptionSummary(it)}")

1059+ }.isSuccess

1060+ }

1061+ if (enqueued) flushOutbox()

1062+ } finally {

1063+ onDone(enqueued)

1064+ }

1065+ }

1066+ }

1067+

1068+ /** Abort the active run for [sessionId] from a notification Stop action. Routes to the

1069+ * originating profile only — sending the abort to a different server would 404 (silently

1070+ * swallowed) and leave the original run stranded. A profile mismatch reports failure so the

1071+ * notification stays up and the user can switch back, mirroring

1072+ * [respondToPermissionFromNotification]'s routing guard. Runs on the app scope so it

1073+ * survives the BroadcastReceiver's lifetime. */

1074+ open fun abortRunFromNotification(sessionId: String, originProfileId: String?, onDone: (Boolean) -> Unit) {

1075+ appScope.launch {

1076+ var success = false

1077+ try {

1078+ val conn = activeConnection.value?.takeIf {

1079+ originProfileId == null || it.profile.id == originProfileId

1080+ }

1081+ if (conn != null) {

1082+ success = runCatchingCancellable { conn.repository.abort(sessionId) }.isSuccess

1083+ }

1084+ } finally {

1085+ onDone(success)

1086+ }

1087+ }

1088+ }

1089+

1090+ /**

1091+ * Retry the last user prompt for [sessionId] from an error notification's "Retry last"

1092+ * action. Fetches the session's messages, re-sends the most recent user prompt, and

1093+ * cancels the error notification on success. Routes to the originating profile's

1094+ * connection only — sending the retry to a different server would 404 or start a fresh

1095+ * run on an unrelated session id. A profile mismatch reports failure so the notification

1096+ * stays up and the user can switch back, mirroring [respondToPermissionFromNotification]'s

1097+ * routing guard. A no-op (reported as false) when there's no connection or no prior prompt.

1098+ */

1099+ open fun retryLastFromNotification(sessionId: String, originProfileId: String?, onDone: (Boolean) -> Unit) {

1100+ appScope.launch {

1101+ var success = false

1102+ try {

1103+ val conn = activeConnection.value?.takeIf {

1104+ originProfileId == null || it.profile.id == originProfileId

1105+ }

1106+ if (conn != null) {

1107+ success = runCatchingCancellable {

1108+ val messages = conn.api.listMessages(sessionId)

1109+ val lastPrompt = messages

1110+ .lastOrNull { it.info is soy.iko.opencode.data.model.UserMessage }

1111+ ?.parts

1112+ ?.filterIsInstance<soy.iko.opencode.data.model.TextPart>()

1113+ ?.joinToString("\n\n") { it.text }

1114+ ?.takeIf { it.isNotBlank() }

1115+ if (lastPrompt != null) {

1116+ // model=null lets the server reuse the session's current model; we

1117+ // don't know the originally-selected model from a notification context.

1118+ conn.repository.sendPrompt(sessionId, lastPrompt, model = null)

1119+ true

1120+ } else {

1121+ false

1122+ }

1123+ }.isSuccess

1124+ }

1125+ } finally {

1126+ onDone(success)

1127+ }

1128+ }

1129+ }

1130+

1131+ /** Extract the session id an event pertains to, for message-activity events. */

1132+ private fun sessionOf(event: BusEvent): String? = sessionOfEvent(event)

1133+

1134+ /**

1135+ * On cold start, transparently reconnect to the most recently used server so a

1136+ * returning user lands in their session list instead of the empty server screen.

1137+ */

1138+ private suspend fun autoConnect() {

1139+ val recent = runCatchingCancellable { profileStore.profiles.first() }

1140+ .getOrDefault(emptyList())

1141+ .firstOrNull() ?: return

1142+ // The profile read above suspends on DataStore. A manual connect() to a different

1143+ // server during that window establishes a connection the user explicitly chose; we must

1144+ // not clobber it by connecting to `recent` on top. connectIfIdle() checks "is anything

1145+ // active?" and connects atomically under connectionMutex, returning null if the cold-start

1146+ // slot was already taken — closing the TOCTOU window an unlocked null-check plus connect()'s

1147+ // unconditional close would leave. (disconnectIf below similarly guards the failed-ping

1148+ // teardown by identity.)

1149+ _reconnecting.value = true

1150+ var conn: OpencodeConnection? = null

1151+ try {

1152+ val ok = runCatchingCancellable {

1153+ conn = connectIfIdle(recent) ?: return@runCatchingCancellable false

1154+ conn!!.api.ping()

1155+ true

1156+ }.getOrDefault(false)

1157+ when {

1158+ conn == null -> Unit // slot already taken by a manual connect — leave it be

1159+ ok -> _autoConnectDone.value = true

1160+ else -> disconnectIf(conn!!)

1161+ }

1162+ } finally {

1163+ // Reset in a finally so a CancellationException (e.g. scope cancelled during

1164+ // shutdown) can't leave the flag pinned true — runCatchingCancellable rethrows it,

1165+ // skipping the line below the try block.

1166+ _reconnecting.value = false

1167+ }

1168+ }

1169+

1170+ /**

1171+ * When the device regains connectivity, nudge the active SSE stream to reconnect

1172+ * immediately instead of waiting out the exponential backoff.

1173+ */

1174+ private val networkCallback: ConnectivityManager.NetworkCallback? = registerNetworkMonitor()

1175+

1176+ private fun registerNetworkMonitor(): ConnectivityManager.NetworkCallback? {

1177+ if (appContext == null) return null

1178+ val cm = appContext!!.getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager

1179+ ?: return null

1180+ // Seed the online state from the current active network so the indicator is

1181+ // correct on cold start rather than defaulting to "online" until a callback fires.

1182+ _isOnline.value = runCatching { cm.activeNetwork != null }.getOrDefault(true)

1183+ val callback = object : ConnectivityManager.NetworkCallback() {

1184+ override fun onAvailable(network: Network) { _isOnline.value = true; activeConnection.value?.events?.triggerReconnect() }

1185+ // A matched (internet-capable) network was lost. Don't eagerly flip offline: during a

1186+ // Wi-Fi→cellular handoff onLost(WiFi) fires before onAvailable(cellular) and

1187+ // cm.activeNetwork is transiently null in that window — flashing offline there would

1188+ // skip outbox flushing and blink the indicator. Instead re-check activeNetwork after a

1189+ // short grace period and only report offline if there's still no active network.

1190+ //

1191+ // This MUST live in onLost, not onUnavailable: onUnavailable is delivered only for

1192+ // requestNetwork() with a timeout, never for registerNetworkCallback() — relying on it

1193+ // (as this once did) meant offline was never detected after the first onAvailable.

1194+ override fun onLost(network: Network) {

1195+ appScope.launch {

1196+ delay(NetworkConfig.networkOfflineGraceMs)

1197+ _isOnline.value = runCatching { cm.activeNetwork != null }.getOrDefault(true)

1198+ }

1199+ }

1200+ }

1201+ // Only match networks that actually provide internet — a capability-less request

1202+ // fires onAvailable for transports that can't reach the server (and would trigger

1203+ // spurious reconnects), so require NET_CAPABILITY_INTERNET.

1204+ val request = NetworkRequest.Builder()

1205+ .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)

1206+ .build()

1207+ runCatching { cm.registerNetworkCallback(request, callback) }

1208+ .onFailure { Log.w("AppContainer", "Failed to register network callback", it) }

1209+ return callback

1210+ }

1211+

1212+ /** Open (or re-open) a connection to [profile], replacing any current one.

1213+ * Only persists the updated `lastUsed` timestamp if it's stale (older than a

1214+ * minute), so rapid reconnect storms don't each trigger a DataStore write. */

1215+ open suspend fun connect(profile: ServerProfile): OpencodeConnection =

1216+ connectionMutex.withLock { connectLocked(profile) }

1217+

1218+ /** Connect to the profile with [profileId], looking it up from [profileStore]. Returns

1219+ * true on success, false if the profile wasn't found or connect threw. Used by the

1220+ * notification body-tap path to route a session open back to the originating server. */

1221+ open suspend fun connectByProfileId(profileId: String): Boolean {

1222+ val profile = profileStore.profiles.first().find { it.id == profileId } ?: return false

1223+ return runCatchingCancellable { connect(profile) }.isSuccess

1224+ }

1225+

1226+ /** Connect to [profile] only if nothing is currently active, checking-and-connecting

1227+ * atomically under [connectionMutex]. Returns null (touching nothing) when a connection is

1228+ * already active, so autoConnect() can't clobber a manual connect() the user made during its

1229+ * suspending profile read — closing the TOCTOU window an unlocked null-check would leave. */

1230+ private suspend fun connectIfIdle(profile: ServerProfile): OpencodeConnection? =

1231+ connectionMutex.withLock {

1232+ if (_activeConnection.value != null) null else connectLocked(profile)

1233+ }

1234+

1235+ /** Build and install a connection to [profile], replacing any current one. Caller MUST hold

1236+ * [connectionMutex]. */

1237+ private suspend fun connectLocked(profile: ServerProfile): OpencodeConnection {

1238+ // Capture the previous profile id before closing, so we can preserve unread badges

1239+ // when reconnecting to the same server — a brief network blip or manual reconnect

1240+ // shouldn't erase "5 unread". Only a genuine server switch clears them.

1241+ val previousProfileId = _activeConnection.value?.profile?.id

1242+ _activeConnection.value?.close()

1243+ _activeConnection.value = null

1244+ // Mutate the run set and its derived flag together under activeRuns' monitor: the SSE

1245+ // event handler adds ids under the same lock, so an unlocked clear() here could

1246+ // interleave with an add()+flag=true and leave _anyRunActive pinned true with a torn-

1247+ // down connection and no SessionIdle to clear it — a stuck foreground service.

1248+ synchronized(activeRuns) {

1249+ activeRuns.clear()

1250+ publishRunState()

1251+ }

1252+ if (previousProfileId != profile.id) {

1253+ _unread.value = emptyMap()

1254+ unreadMessageIds.clear()

1255+ }

1256+ val now = System.currentTimeMillis()

1257+ val resolved = profileStore.resolve(profile)

1258+ val needsSave = (now - resolved.lastUsed) > LAST_USED_SAVE_THRESHOLD_MS

1259+ val finalProfile = if (needsSave) resolved.copy(lastUsed = now) else resolved

1260+ if (needsSave) profileStore.save(finalProfile)

1261+ return OpencodeConnection(finalProfile, messageCacheStore).also { _activeConnection.value = it }

1262+ }

1263+

1264+ open suspend fun disconnect() {

1265+ // Acquire the connection mutex so disconnect is serialized with connect().

1266+ // Previously this was fire-and-forget (launch on appScope), which raced with

1267+ // a subsequent connect(): connect() could acquire the mutex, create a new

1268+ // connection, and then the pending disconnect() would close it.

1269+ connectionMutex.withLock { teardownActiveLocked() }

1270+ }

1271+

1272+ /** Tear down [expected] only if it is still the active connection, with the identity

1273+ * check performed *under* the mutex. A caller that checks `activeConnection.value === x`

1274+ * itself and then calls [disconnect] has a TOCTOU race: a concurrent connect() to a

1275+ * different server can replace the active connection in the gap, and [disconnect] would

1276+ * then close that new connection. autoConnect()'s failed-ping teardown uses this. */

1277+ private suspend fun disconnectIf(expected: OpencodeConnection) {

1278+ connectionMutex.withLock {

1279+ if (_activeConnection.value === expected) teardownActiveLocked()

1280+ }

1281+ }

1282+

1283+ /** Close and reset the active connection. Caller MUST hold [connectionMutex]. */

1284+ private suspend fun teardownActiveLocked() {

1285+ _activeConnection.value?.close()

1286+ _activeConnection.value = null

1287+ // Reset run/unread state on disconnect too. With no SSE stream there's no

1288+ // SessionIdle to drain activeRuns, so without this the working indicator

1289+ // (anyRunActive) and unread badges would stay pinned until the next connect().

1290+ // Mutate under activeRuns' monitor (see connect()) so a concurrent SSE add() can't

1291+ // re-pin _anyRunActive after the clear.

1292+ synchronized(activeRuns) {

1293+ activeRuns.clear()

1294+ publishRunState()

1295+ }

1296+ _unread.value = emptyMap()

1297+ unreadMessageIds.clear()

1298+ }

1299+

1300+ /** Deferred profile deletions keyed by id, run on the process-lived [appScope] (not a

1301+ * ViewModel scope) so navigating away during the undo window still commits the delete

1302+ * instead of silently cancelling it — mirroring [CrashLogger.scheduleDelete]. */

1303+ private val pendingProfileDeletes = java.util.concurrent.ConcurrentHashMap<String, Job>()

1304+

1305+ /**

1306+ * Schedule the profile [id] for deletion after [delayMs], cancellable via

1307+ * [cancelProfileDelete] (the Undo action). [onDeleted]/[onError] run on [appScope]

1308+ * after the delete resolves so the caller can clear its optimistic-hide state. A

1309+ * repeated schedule for the same id replaces the prior timer.

1310+ */

1311+ open fun scheduleProfileDelete(

1312+ id: String,

1313+ delayMs: Long,

1314+ onDeleted: () -> Unit,

1315+ onError: (Throwable) -> Unit,

1316+ ) {

1317+ val job = appScope.launch {

1318+ delay(delayMs)

1319+ // Claim the delete by removing our own entry BEFORE committing it — the atomic

1320+ // remove is the sync point with cancelProfileDelete. Losing the race (an undo

1321+ // removed us first) means we skip, honouring cancel's `true`; deleting first

1322+ // would let a cancel land in the gap and falsely report undo of a gone profile.

1323+ // remove(id, thisJob) also no-ops for a stale job after a reschedule.

1324+ val claimed = coroutineContext[Job]?.let { pendingProfileDeletes.remove(id, it) } == true

1325+ if (!claimed) return@launch

1326+ runCatchingCancellable { profileStore.delete(id) }

1327+ .onSuccess { onDeleted() }

1328+ .onFailure { onError(it) }

1329+ }

1330+ pendingProfileDeletes[id]?.cancel()

1331+ pendingProfileDeletes[id] = job

1332+ }

1333+

1334+ /** Cancel a pending deferred profile delete (the Undo action). Returns true if it was

1335+ * still pending (undo succeeded), false if the delete had already fired. */

1336+ open fun cancelProfileDelete(id: String): Boolean {

1337+ val job = pendingProfileDeletes.remove(id) ?: return false

1338+ job.cancel()

1339+ return true

1340+ }

1341+

1342+ /** Deferred session deletions keyed by id, run on the process-lived [appScope] (not a

1343+ * ViewModel scope) so navigating away during the undo window still commits the delete

1344+ * instead of silently cancelling it (which would leave the session deleted-in-UI but

1345+ * alive on the server, reappearing on the next refresh). */

1346+ private val pendingSessionDeletes = java.util.concurrent.ConcurrentHashMap<String, Job>()

1347+

1348+ /** One-shot events carrying the id of a session scheduled for deferred deletion from

1349+ * outside the session list (e.g. from the chat screen's Delete). The SessionListScreen

1350+ * collects these to show an Undo snackbar, mirroring its own VM-level undo events. */

1351+ private val _externalSessionUndoEvents = MutableSharedFlow<String>(

1352+ extraBufferCapacity = NetworkConfig.snackbarEventBufferCapacity,

1353+ onBufferOverflow = kotlinx.coroutines.channels.BufferOverflow.DROP_OLDEST,

1354+ )

1355+ val externalSessionUndoEvents: SharedFlow<String> = _externalSessionUndoEvents.asSharedFlow()

1356+

1357+ /** Emit an undo event for a session delete initiated outside the session list (e.g.

1358+ * from the chat screen). The SessionListScreen collects these to show an Undo snackbar. */

1359+ fun emitExternalSessionUndo(sessionId: String) {

1360+ _externalSessionUndoEvents.tryEmit(sessionId)

1361+ }

1362+

1363+ /**

1364+ * Schedule session [id] for deletion after [delayMs], cancellable via [cancelSessionDelete]

1365+ * (the Undo action). Also clears the session's stored draft on a successful delete.

1366+ * [onDeleted]/[onError] run on [appScope] after the delete resolves so the caller can update

1367+ * its optimistic-hide state. A repeated schedule for the same id replaces the prior timer.

1368+ *

1369+ * The owning connection is captured now, at schedule time — NOT re-resolved when the timer

1370+ * fires. Otherwise a server switch during the undo window would send the delete to whichever

1371+ * server happens to be active at fire time: the original session would never be deleted (its

1372+ * row reappears on the next refresh) and, in the rare id-collision case, an unrelated session

1373+ * on the new server could be deleted instead. A disconnect closes the captured connection's

1374+ * HTTP client, so a delete deferred across a disconnect fails and is surfaced via [onError]

1375+ * (the session cannot be deleted on a server we're no longer connected to). No-ops (as an

1376+ * error) if there is no active connection at schedule time.

1377+ */

1378+ open fun scheduleSessionDelete(

1379+ id: String,

1380+ delayMs: Long,

1381+ onDeleted: () -> Unit,

1382+ onError: (Throwable) -> Unit,

1383+ ) {

1384+ val conn = _activeConnection.value

1385+ val job = appScope.launch {

1386+ delay(delayMs)

1387+ // Claim the delete by removing our own entry BEFORE committing it — the atomic

1388+ // remove is the sync point with cancelSessionDelete. Losing the race (an undo

1389+ // removed us first) means we skip, honouring cancel's `true`; deleting first

1390+ // would let a cancel land in the gap and falsely report undo of a gone session.

1391+ // remove(id, thisJob) also no-ops for a stale job after a reschedule.

1392+ val claimed = coroutineContext[Job]?.let { pendingSessionDeletes.remove(id, it) } == true

1393+ if (!claimed) return@launch

1394+ if (conn == null) {

1395+ onError(IllegalStateException("No active connection"))

1396+ } else {

1397+ runCatchingCancellable { conn.repository.deleteSession(id) }

1398+ .onSuccess {

1399+ draftStore.remove(id)

1400+ attachmentDraftStore.remove(id)

1401+ sessionPrefsStore.forget(id)

1402+ messageCacheStore.remove(conn.profile.id, id)

1403+ outboxStore.removeForSession(id)

1404+ clearUnread(id)

1405+ onDeleted()

1406+ }

1407+ .onFailure { onError(it) }

1408+ }

1409+ }

1410+ pendingSessionDeletes[id]?.cancel()

1411+ pendingSessionDeletes[id] = job

1412+ }

1413+

1414+ /** Cancel a pending deferred session delete (the Undo action). Returns true if it was

1415+ * still pending (undo succeeded), false if the delete had already fired. */

1416+ open fun cancelSessionDelete(id: String): Boolean {

1417+ val job = pendingSessionDeletes.remove(id) ?: return false

1418+ job.cancel()

1419+ return true

1420+ }

1421+

1422+ /**

1423+ * Probe a server URL (without credentials) to check reachability and detect whether

1424+ * the server requires authentication. Builds a short-lived HTTP client with the same

1425+ * base URL normalization as [connect] but no auth, calls the health endpoint, and

1426+ * classifies the outcome:

1427+ *

1428+ * - 2xx → [ProbeResult.Reachable] (no auth needed)

1429+ * - 401/403 → [ProbeResult.NeedsAuth]

1430+ * - anything else → [ProbeResult.Unreachable] with a user-facing message

1431+ *

1432+ * The probe client is always closed afterwards so no resources linger. This does not

1433+ * touch the active connection or the profile store.

1434+ */

1435+ open suspend fun probeServer(baseUrl: String, requireHttps: Boolean, certPin: String?): ProbeResult {

1436+ return probeWithProfile(ServerProfile(

1437+ id = "probe",

1438+ label = "",

1439+ baseUrl = baseUrl.trim(),

1440+ username = null,

1441+ password = null,

1442+ // Probe the same effective URL save()/connect() will use: HttpClientFactory upgrades

1443+ // http->https and installs the cert pinner when these are set, so a probe without them

1444+ // would validate a plain-http endpoint the real connection never talks to.

1445+ requireHttps = requireHttps,

1446+ certPin = certPin,

1447+ ))

1448+ }

1449+

1450+ /**

1451+ * Probe a server URL *with* credentials to validate them. Returns true if the

1452+ * server accepts the credentials (ping succeeds), false on 401/403, and throws

1453+ * on other failures (unreachable, timeout) so the caller can surface a friendly

1454+ * message. Mirrors [probeServer]'s short-lived-client pattern.

1455+ */

1456+ open suspend fun probeWithCredentials(

1457+ baseUrl: String,

1458+ username: String,

1459+ password: String,

1460+ requireHttps: Boolean,

1461+ certPin: String?,

1462+ ): Boolean {

1463+ val probeProfile = ServerProfile(

1464+ id = "probe-auth",

1465+ label = "",

1466+ baseUrl = baseUrl.trim(),

1467+ username = username.trim().takeIf { it.isNotBlank() },

1468+ password = password.trim().takeIf { it.isNotEmpty() },

1469+ // Match the effective URL/pinning save()/connect() will use (see probeServer).

1470+ requireHttps = requireHttps,

1471+ certPin = certPin,

1472+ )

1473+ val client = HttpClientFactory.create(probeProfile)

1474+ return try {

1475+ val api = OpencodeApiClient(client)

1476+ api.ping()

1477+ true

1478+ } catch (c: kotlinx.coroutines.CancellationException) {

1479+ throw c

1480+ } catch (e: Exception) {

1481+ val status = responseStatusCode(e)

1482+ if (status == 401 || status == 403) false else throw e

1483+ } finally {

1484+ // runCatchingCancellable (not plain runCatching): this is a suspend finally, and

1485+ // plain runCatching swallows CancellationException — if the caller's scope is

1486+ // cancelled while client.close() is in flight, the cancellation must propagate.

1487+ runCatchingCancellable { client.close() }

1488+ }

1489+ }

1490+

1491+ private suspend fun probeWithProfile(profile: ServerProfile): ProbeResult {

1492+ val client = HttpClientFactory.create(profile)

1493+ return try {

1494+ val api = OpencodeApiClient(client)

1495+ api.ping()

1496+ ProbeResult.Reachable

1497+ } catch (c: kotlinx.coroutines.CancellationException) {

1498+ throw c

1499+ } catch (e: Exception) {

1500+ val status = responseStatusCode(e)

1501+ if (status == 401 || status == 403) {

1502+ ProbeResult.NeedsAuth

1503+ } else {

1504+ ProbeResult.Unreachable(friendlyErrorFor(e, profile.baseUrl))

1505+ }

1506+ } finally {

1507+ // runCatchingCancellable: see probeWithCredentials for the rationale.

1508+ runCatchingCancellable { client.close() }

1509+ }

1510+ }

1511+

1512+ // Declared last so every property above is fully initialized before these observers start.

1513+ // They only launch coroutines into appScope (Dispatchers.IO) — nothing here runs

1514+ // synchronously during construction — so placing init at the end removes any dependence on

1515+ // the textual declaration order of the fields those observers reference.

1516+ init {

1517+ if (!skipInit) {

1518+ NotificationChannels.create(appContext!!)

1519+ observeMessageActivity()

1520+ observeRunReconcileOnReconnect()

1521+ observeRunForegroundService()

1522+ observeBackgroundedConnectionFailures()

1523+ // Load the persisted muted-sessions set so isSessionMuted() reflects the choice

1524+ // immediately on cold start (before any session list composition).

1525+ appScope.launch {

1526+ runCatchingCancellable {

1527+ sessionPrefsStore.muted.collect { ids -> _mutedSessions.value = ids }

1528+ }

1529+ }

1530+ // Flush right after load() populates the queue. observeOutbox()'s combine is keyed

1531+ // on activeConnection/isOnline/_outboxFlushTrigger — NOT on outboxStore.messages — so

1532+ // if connect() sets activeConnection before load() finishes reading a (possibly

1533+ // multi-MB) outbox.json, the connect-triggered flush sees an empty queue and nothing

1534+ // re-triggers it. Nudging the flush here guarantees a loaded queue is sent. Log a

1535+ // load failure so a corrupt outbox.json / IO error is debuggable rather than silently

1536+ // dropping every queued offline message until a future restart happens to succeed.

1537+ appScope.launch {

1538+ runCatchingCancellable { outboxStore.load() }

1539+ .onFailure { Log.w("AppContainer", "Outbox load failed; queued messages may be lost: ${safeExceptionSummary(it)}") }

1540+ flushOutbox()

1541+ }

1542+ observeOutbox()

1543+ appScope.launch { autoConnect() }

1544+ }

1545+ }

1546+}

1547+

1548+/**

1549+ * Extract the session id a message-activity event pertains to, or null for events that

1550+ * don't describe message activity. This drives the unread badge: any session that

1551+ * receives activity while it isn't the currently-viewed one gets badged. Extracted as

1552+ * a top-level `internal` function so the rule is unit-testable without an Android

1553+ * [Context] (the surrounding [AppContainer] needs one).

1554+ */

1555+internal fun sessionOfEvent(event: BusEvent): String? = when (event) {

1556+ is MessageUpdated -> event.properties.info?.sessionID

1557+ is MessagePartUpdated -> event.properties.part.sessionID ?: event.properties.sessionID

1558+ else -> null

1559+}

1560+

1561+/**

1562+ * The message id a message-activity event pertains to, used to de-duplicate the unread

1563+ * badge so a reply's many streaming events count once. Null for events that carry no

1564+ * message id (those fall back to being counted individually).

1565+ */

1566+internal fun messageIdOfEvent(event: BusEvent): String? = when (event) {

1567+ is MessageUpdated -> event.properties.info?.id

1568+ is MessagePartUpdated -> event.properties.messageID ?: event.properties.part.messageID

1569+ else -> null

1570+}

app/src/main/java/soy/iko/opencode/di/OpencodeConnection.ktnew file+52

@@ -0,0 +1,52 @@

1+package soy.iko.opencode.di

2+

3+import soy.iko.opencode.data.model.ServerProfile

4+import soy.iko.opencode.data.network.EventStreamClient

5+import soy.iko.opencode.data.network.HttpClientFactory

6+import soy.iko.opencode.data.network.OpencodeApiClient

7+import soy.iko.opencode.data.repo.MessageCacheStore

8+import soy.iko.opencode.data.repo.SessionRepository

9+import kotlinx.coroutines.CoroutineScope

10+import kotlinx.coroutines.Dispatchers

11+import kotlinx.coroutines.SupervisorJob

12+import kotlinx.coroutines.cancel

13+import soy.iko.opencode.util.runCatchingCancellable

14+

15+/**

16+ * An active connection to one opencode server. Bundles the Ktor client, REST API,

17+ * SSE event stream, and the reducing repository, all sharing a connection-scoped

18+ * coroutine scope that is cancelled on [close].

19+ */

20+open class OpencodeConnection(

21+ val profile: ServerProfile,

22+ // Optional on-disk message cache, supplied by AppContainer, so conversations render

23+ // instantly and stay readable offline. Null in the test constructor.

24+ private val messageCache: MessageCacheStore? = null,

25+) {

26+

27+ protected constructor() : this(ServerProfile(id = "", label = "", baseUrl = "http://localhost"), null)

28+

29+ private val scopeJob = SupervisorJob()

30+ private val scope by lazy { CoroutineScope(scopeJob + Dispatchers.IO) }

31+ private val client by lazy { HttpClientFactory.create(profile) }

32+

33+ open val api: OpencodeApiClient by lazy { OpencodeApiClient(client) }

34+ open val events: EventStreamClient by lazy { EventStreamClient(client, scope) }

35+ open val repository: SessionRepository by lazy { SessionRepository(api, events, messageCache, profile.id) }

36+

37+ /**

38+ * Cancel the coroutine scope and wait for in-flight work (including the SSE reader)

39+ * to wind down before closing the HTTP client. Calling client.close() while the SSE

40+ * coroutine is still mid-request produces a spurious "stream error, will retry"

41+ * warning during normal teardown.

42+ */

43+ open suspend fun close() {

44+ scope.cancel()

45+ scopeJob.join()

46+ // runCatchingCancellable (not plain runCatching) per the repo convention: close() is a

47+ // suspend function, and plain runCatching swallows CancellationException — if the

48+ // caller's scope is cancelled mid-close, the cancellation must propagate rather than

49+ // be eaten as a Result.failure (which would leave the client half-closed).

50+ runCatchingCancellable { client.close() }

51+ }

52+}

app/src/main/java/soy/iko/opencode/notification/NotificationActionReceiver.ktnew file+195

@@ -0,0 +1,195 @@

1+package soy.iko.opencode.notification

2+

3+import android.content.BroadcastReceiver

4+import android.content.Context

5+import android.content.Intent

6+import androidx.core.app.RemoteInput

7+import soy.iko.opencode.OpencodeApp

8+import soy.iko.opencode.R

9+import soy.iko.opencode.data.model.PermissionResponse

10+import soy.iko.opencode.data.network.NetworkConfig

11+import java.util.concurrent.atomic.AtomicBoolean

12+

13+/**

14+ * Handles the action buttons on the app's notifications so the user can respond without

15+ * opening the app — the core of the "kick it off and walk away" flow:

16+ *

17+ * - [ACTION_PERMISSION] with a [PermissionResponse] → replies to a paused tool's permission

18+ * request (Allow once / Always / Reject) via the active connection.

19+ * - [ACTION_REPLY] with a [RemoteInput] text payload → sends a follow-up prompt to a session

20+ * that just finished a run.

21+ *

22+ * The receiver is not exported (see the manifest); the [PendingIntent]s that target it are

23+ * created by the app itself. Work is done on the process-lived app scope via [OpencodeApp]'s

24+ * container, and [goAsync] keeps the receiver alive until the (network) call resolves.

25+ *

26+ * A watchdog finishes the [PendingResult] within [NetworkConfig.notificationReceiverTimeoutMs]

27+ * so a slow network call (e.g. a permission respond retried with exponential backoff) can't

28+ * ANR the receiver. The underlying call keeps running on the app scope; only the receiver's

29+ * lifetime is bounded. [finishOnce] guards against a double finish() (which would throw).

30+ */

31+class NotificationActionReceiver : BroadcastReceiver() {

32+

33+ override fun onReceive(context: Context, intent: Intent) {

34+ val container = (context.applicationContext as? OpencodeApp)?.container ?: return

35+ if (intent.action == ACTION_STOP_RUN) {

36+ handleStopRun(context, container, intent)

37+ return

38+ }

39+ val sessionId = intent.getStringExtra(EXTRA_SESSION_ID)?.takeIf { it.isNotBlank() } ?: return

40+ when (intent.action) {

41+ ACTION_MARK_READ -> {

42+ // "Mark read" from a completion notification — clear the unread badge and

43+ // dismiss the notification without opening the session.

44+ container.markSessionRead(sessionId)

45+ SessionNotifications.cancel(context, sessionId)

46+ return

47+ }

48+ ACTION_PERMISSION -> {

49+ val permissionId = intent.getStringExtra(EXTRA_PERMISSION_ID)?.takeIf { it.isNotBlank() } ?: return

50+ val profileId = intent.getStringExtra(EXTRA_PROFILE_ID)?.takeIf { it.isNotBlank() }

51+ val response = PermissionResponse.entries.firstOrNull {

52+ it.wire == intent.getStringExtra(EXTRA_RESPONSE)

53+ } ?: return

54+ val pending = goAsync()

55+ val finished = AtomicBoolean(false)

56+ var watchdogThread: Thread? = null

57+ val finishOnce = {

58+ if (finished.compareAndSet(false, true)) {

59+ watchdogThread?.interrupt()

60+ pending.finish()

61+ }

62+ }

63+ watchdogThread = watchdog(finishOnce)

64+ container.respondToPermissionFromNotification(sessionId, permissionId, response, profileId) { success ->

65+ // Only dismiss the notification once the tool was actually answered. If

66+ // there was no live connection (respond is a no-op) or the call failed,

67+ // leave it up so the user can retry — otherwise it vanishes with the

68+ // permission request left unanswered.

69+ if (success) SessionNotifications.cancelPermission(context, sessionId)

70+ finishOnce()

71+ }

72+ }

73+ ACTION_REPLY -> {

74+ val text = RemoteInput.getResultsFromIntent(intent)

75+ ?.getCharSequence(KEY_REPLY_TEXT)?.toString()?.trim()

76+ ?.takeIf { it.isNotEmpty() }

77+ if (text == null) {

78+ // The RemoteInput fired but the reply was empty/whitespace. SystemUI locks the

79+ // inline field in a "sending…" state until the notification is updated or

80+ // cancelled — cancel it so the field doesn't stay stuck with nothing to send.

81+ SessionNotifications.cancel(context, sessionId)

82+ return

83+ }

84+ val profileId = intent.getStringExtra(EXTRA_PROFILE_ID)?.takeIf { it.isNotBlank() }

85+ val pending = goAsync()

86+ val finished = AtomicBoolean(false)

87+ var watchdogThread: Thread? = null

88+ val finishOnce = {

89+ if (finished.compareAndSet(false, true)) {

90+ watchdogThread?.interrupt()

91+ pending.finish()

92+ }

93+ }

94+ watchdogThread = watchdog(finishOnce)

95+ container.sendPromptFromNotification(sessionId, text, profileId) { enqueued ->

96+ // The reply is durably queued (and flushed now if online). Show a brief

97+ // "Sent" confirmation by updating the completion notification's text, then

98+ // let it auto-cancel on tap — instead of vanishing silently. If the enqueue

99+ // failed, post a "reply not sent" error: leaving the completion notification

100+ // up strands SystemUI's RemoteInput field in a permanent "sending…" spinner

101+ // that can't be resubmitted, so "leave it up to retry" doesn't actually let

102+ // the user retry.

103+ if (enqueued) {

104+ SessionNotifications.postReplySent(context, sessionId, profileId)

105+ } else {

106+ SessionNotifications.postReplyFailed(context, sessionId, profileId)

107+ }

108+ finishOnce()

109+ }

110+ }

111+ ACTION_RETRY_LAST -> {

112+ // "Retry last" from an error notification: re-send the most recent user prompt

113+ // for this session without opening the app. Cancels the error notification on

114+ // success so the user sees the retry took effect.

115+ val profileId = intent.getStringExtra(EXTRA_PROFILE_ID)?.takeIf { it.isNotBlank() }

116+ val pending = goAsync()

117+ val finished = AtomicBoolean(false)

118+ var watchdogThread: Thread? = null

119+ val finishOnce = {

120+ if (finished.compareAndSet(false, true)) {

121+ watchdogThread?.interrupt()

122+ pending.finish()

123+ }

124+ }

125+ watchdogThread = watchdog(finishOnce)

126+ container.retryLastFromNotification(sessionId, profileId) { success ->

127+ if (success) SessionNotifications.cancel(context, sessionId)

128+ finishOnce()

129+ }

130+ }

131+ }

132+ }

133+

134+ /** Handle the Stop action from the foreground-service notification. Extracted from

135+ * [onReceive] to keep that function's cyclomatic complexity under detekt's threshold. */

136+ private fun handleStopRun(context: Context, container: soy.iko.opencode.di.AppContainer, intent: Intent) {

137+ // The session id may be absent if multiple runs were active (generic notification);

138+ // in that case we can't target a specific run — just let it ride.

139+ val sessionId = intent.getStringExtra(EXTRA_SESSION_ID)?.takeIf { it.isNotBlank() } ?: return

140+ val profileId = intent.getStringExtra(EXTRA_PROFILE_ID)?.takeIf { it.isNotBlank() }

141+ val pending = goAsync()

142+ val finished = AtomicBoolean(false)

143+ var watchdogThread: Thread? = null

144+ val finishOnce = {

145+ if (finished.compareAndSet(false, true)) {

146+ watchdogThread?.interrupt()

147+ pending.finish()

148+ }

149+ }

150+ watchdogThread = watchdog(finishOnce)

151+ container.abortRunFromNotification(sessionId, profileId) { success ->

152+ // On a failed abort (transient network error), the run continues but the FGS

153+ // notification will disappear once anyRunActive clears — leaving the user with

154+ // no signal that their Stop tap didn't take. Post a quick "couldn't stop"

155+ // notification so they know to open the app. On success, the FGS disappearing

156+ // is sufficient feedback.

157+ if (!success) {

158+ SessionNotifications.postError(

159+ context, sessionId,

160+ context.getString(R.string.couldnt_stop_run),

161+ profileId,

162+ )

163+ }

164+ finishOnce()

165+ }

166+ }

167+

168+ /** Schedule a deadline after which the receiver's [PendingResult] is finished even if

169+ * the network call hasn't resolved, so the system can't ANR the receiver. The

170+ * underlying work continues on the app scope. Returns the watchdog thread so the

171+ * caller can [interrupt][Thread.interrupt] it when work completes early, releasing

172+ * the sleeping thread immediately instead of leaving it for the full timeout. */

173+ private fun watchdog(finishOnce: () -> Unit): Thread =

174+ Thread {

175+ try {

176+ Thread.sleep(NetworkConfig.notificationReceiverTimeoutMs)

177+ } catch (_: InterruptedException) {

178+ return@Thread

179+ }

180+ finishOnce()

181+ }.apply { isDaemon = true; name = "notif-receiver-watchdog"; start() }

182+

183+ companion object {

184+ const val ACTION_PERMISSION = "soy.iko.opencode.action.PERMISSION"

185+ const val ACTION_REPLY = "soy.iko.opencode.action.REPLY"

186+ const val ACTION_STOP_RUN = "soy.iko.opencode.action.STOP_RUN"

187+ const val ACTION_MARK_READ = "soy.iko.opencode.action.MARK_READ"

188+ const val ACTION_RETRY_LAST = "soy.iko.opencode.action.RETRY_LAST"

189+ const val EXTRA_SESSION_ID = "soy.iko.opencode.extra.SESSION_ID"

190+ const val EXTRA_PERMISSION_ID = "soy.iko.opencode.extra.PERMISSION_ID"

191+ const val EXTRA_PROFILE_ID = "soy.iko.opencode.extra.PROFILE_ID"

192+ const val EXTRA_RESPONSE = "soy.iko.opencode.extra.RESPONSE"

193+ const val KEY_REPLY_TEXT = "soy.iko.opencode.key.REPLY_TEXT"

194+ }

195+}

app/src/main/java/soy/iko/opencode/notification/NotificationChannels.ktnew file+65

@@ -0,0 +1,65 @@

1+package soy.iko.opencode.notification

2+

3+import android.app.NotificationChannel

4+import android.app.NotificationManager

5+import android.content.Context

6+import soy.iko.opencode.R

7+

8+/**

9+ * The app's notification channels. Created once at startup (idempotent — recreating an

10+ * existing channel is a no-op). Two channels keep user control granular:

11+ *

12+ * - [STATUS]: low-importance, no sound. Used by the foreground service's persistent

13+ * "agent running" indicator.

14+ * - [COMPLETED]: default importance. Used when a background session finishes a run.

15+ * - [PERMISSION]: high importance (heads-up + sound). Used when a paused tool run needs

16+ * the user's approval — the whole point is to reach the user who has walked away, so it

17+ * interrupts rather than sitting silently in the shade.

18+ * - [ERROR]: default importance. Used when a background run fails.

19+ */

20+object NotificationChannels {

21+ const val STATUS = "run_status"

22+ const val COMPLETED = "session_completed"

23+ const val PERMISSION = "permission_request"

24+ const val ERROR = "session_error"

25+ const val UNREAD = "unread_badge"

26+

27+ fun create(context: Context) {

28+ val nm = context.getSystemService(Context.NOTIFICATION_SERVICE) as? NotificationManager ?: return

29+ nm.createNotificationChannel(

30+ NotificationChannel(STATUS, context.getString(R.string.notif_channel_status), NotificationManager.IMPORTANCE_LOW).apply {

31+ description = context.getString(R.string.notif_channel_status_desc)

32+ setShowBadge(false)

33+ },

34+ )

35+ nm.createNotificationChannel(

36+ NotificationChannel(COMPLETED, context.getString(R.string.notif_channel_completed), NotificationManager.IMPORTANCE_DEFAULT).apply {

37+ description = context.getString(R.string.notif_channel_completed_desc)

38+ },

39+ )

40+ nm.createNotificationChannel(

41+ NotificationChannel(PERMISSION, context.getString(R.string.notif_channel_permission), NotificationManager.IMPORTANCE_HIGH).apply {

42+ description = context.getString(R.string.notif_channel_permission_desc)

43+ },

44+ )

45+ nm.createNotificationChannel(

46+ // HIGH importance so a failed run stands out from a completed one by

47+ // sound/vibration — both are actionable, but a failure is time-sensitive.

48+ NotificationChannel(ERROR, context.getString(R.string.notif_channel_error), NotificationManager.IMPORTANCE_HIGH).apply {

49+ description = context.getString(R.string.notif_channel_error_desc)

50+ },

51+ )

52+ // A silent, badge-only channel that carries the launcher icon's unread count (the only

53+ // way to badge the launcher icon on Android is via a notification on a badge-enabled

54+ // channel). Low importance + no sound/vibration so it never alerts; setShowBadge(true)

55+ // so its number renders on the launcher icon.

56+ nm.createNotificationChannel(

57+ NotificationChannel(UNREAD, context.getString(R.string.notif_channel_unread), NotificationManager.IMPORTANCE_MIN).apply {

58+ description = context.getString(R.string.notif_channel_unread_desc)

59+ setShowBadge(true)

60+ setSound(null, null)

61+ enableVibration(false)

62+ },

63+ )

64+ }

65+}

app/src/main/java/soy/iko/opencode/notification/RunForegroundService.ktnew file+375

@@ -0,0 +1,375 @@

1+package soy.iko.opencode.notification

2+

3+import android.app.Notification

4+import android.app.PendingIntent

5+import android.app.Service

6+import android.content.Context

7+import android.content.Intent

8+import android.content.pm.ServiceInfo

9+import android.content.res.Configuration

10+import android.os.Build

11+import android.os.IBinder

12+import android.util.Log

13+import android.annotation.SuppressLint

14+import androidx.core.app.NotificationCompat

15+import androidx.core.app.NotificationManagerCompat

16+import androidx.core.app.ServiceCompat

17+import soy.iko.opencode.MainActivity

18+import soy.iko.opencode.R

19+import java.security.MessageDigest

20+

21+/**

22+ * A foreground service kept alive while an opencode agent is actively running. Holding a

23+ * foreground priority lets the long-lived SSE `/event` subscription survive backgrounding

24+ * (Doze/app-standby would otherwise choke the socket and stall streaming mid-run).

25+ *

26+ * The service is started when a run begins ([start]) and stopped when it goes idle

27+ * ([stop]). It shows a low-importance "Agent is working…" notification in [NotificationChannels.STATUS].

28+ * Started/stopped via Compose from the chat screen based on the `running` state.

29+ */

30+class RunForegroundService : Service() {

31+

32+ // Wall-clock time the current run started, captured on the first onStartCommand of

33+ // the run and reused across progress-driven notification rebuilds so the chronometer's

34+ // base doesn't jump back to 0:00 every time the agent advances a step. Reset to 0 in

35+ // onDestroy once the run ends (stop() → onDestroy) so the next run starts fresh.

36+ //

37+ // Instance field (not companion/static): a static field would survive a stopped-then-

38+ // recreated service instance and leave the chronometer pinned to a previous run's start

39+ // if onDestroy hadn't run yet when the next run's first intent arrived. As an instance

40+ // field it's reset by construction on every new Service instance.

41+ //

42+ // @Volatile: onStartCommand/onDestroy write these on the main thread, but updateProgress

43+ // (reached via the companion start() from AppContainer.observeRunForegroundService, which

44+ // runs on Dispatchers.IO) reads them. Without @Volatile there's no happens-before edge,

45+ // so a 64-bit Long (runStartMillis) can be torn and the booleans/strings can be stale.

46+ @Volatile private var runStartMillis: Long = 0L

47+ // Whether *this* service instance has successfully called startForeground. Tracked so

48+ // progress-driven re-starts (which re-enter onStartCommand) don't re-call startForeground

49+ // and re-bind the 5s obligation each time — that would let a backgrounded re-start throw

50+ // ForegroundServiceStartNotAllowedException even though the service is already in the

51+ // foreground. After the first successful startForeground, progress updates refresh the

52+ // notification via NotificationManager.notify directly (see [updateProgress]), which

53+ // never throws the background-start exception.

54+ @Volatile private var isInForeground: Boolean = false

55+ // The most recent session title/id/profile/progress handed to onStartCommand, retained so

56+ // [updateProgress] can rebuild the notification with a new progress string without a fresh

57+ // startForegroundService intent (which can throw when backgrounded).

58+ @Volatile private var lastTitle: String? = null

59+ @Volatile private var lastSessionId: String? = null

60+ @Volatile private var lastProfileId: String? = null

61+ @Volatile private var lastProgress: String? = null

62+

63+ @android.annotation.SuppressLint("MissingPermission")

64+ override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {

65+ instance = this

66+ // The session title (when a single run is active) is passed via the intent extra so

67+ // the notification can identify which session is running, instead of a generic

68+ // "Agent is working…". Null/blank falls back to the generic title.

69+ val sessionTitle = intent?.getStringExtra(EXTRA_SESSION_TITLE)?.takeIf { it.isNotBlank() }

70+ val sessionId = intent?.getStringExtra(EXTRA_SESSION_ID)?.takeIf { it.isNotBlank() }

71+ val profileId = intent?.getStringExtra(EXTRA_PROFILE_ID)?.takeIf { it.isNotBlank() }

72+ val progress = intent?.getStringExtra(EXTRA_PROGRESS)?.takeIf { it.isNotBlank() }

73+ lastTitle = sessionTitle

74+ lastSessionId = sessionId

75+ lastProfileId = profileId

76+ lastProgress = progress

77+ // Capture the wall-clock start of the *first* intent of this run and reuse it across

78+ // rebuilds so the chronometer's base doesn't jump back to 0:00 every time the agent

79+ // advances a step. As an instance field it's 0 on a fresh service, so a recreated

80+ // service (after onDestroy reset) starts the clock fresh too.

81+ if (runStartMillis == 0L) runStartMillis = System.currentTimeMillis()

82+ val notification = buildNotification(sessionTitle, sessionId, profileId, progress)

83+ // Only call startForeground once per service lifetime — re-calling it on every

84+ // progress-driven re-start re-binds the "must call startForeground within 5s"

85+ // obligation each time, and if the app is backgrounded between two progress

86+ // updates the new call can throw ForegroundServiceStartNotAllowedException even

87+ // though the service is already in the foreground. That would drop foreground

88+ // priority mid-run (the catch below stopSelf()s, killing the FGS while

89+ // anyRunActive is still true). After the first successful startForeground,

90+ // progress updates refresh the notification via NotificationManager.notify

91+ // directly, which never throws the background-start exception.

92+ if (!isInForeground) {

93+ runCatching {

94+ ServiceCompat.startForeground(

95+ this,

96+ NOTIF_ID,

97+ notification,

98+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {

99+ ServiceInfo.FOREGROUND_SERVICE_TYPE_DATA_SYNC

100+ } else {

101+ 0

102+ },

103+ )

104+ }.onFailure {

105+ Log.w(TAG, "startForeground failed; running without foreground priority", it)

106+ stopSelf()

107+ }.also { isInForeground = it.isSuccess }

108+ } else {

109+ // Already in the foreground: refresh the notification in place. NotificationManager

110+ // updates an ongoing notification without re-asserting foreground priority.

111+ runCatching {

112+ NotificationManagerCompat.from(this).notify(NOTIF_ID, notification)

113+ }.onFailure { Log.w(TAG, "Failed to update foreground notification", it) }

114+ }

115+ return START_NOT_STICKY

116+ }

117+

118+ /** Rebuild the notification with an updated progress string and re-notify in place, *without*

119+ * re-entering [onStartCommand] (and therefore without calling [Context.startForegroundService],

120+ * which can throw [android.app.ForegroundServiceStartNotAllowedException] on Android 12+ when

121+ * the app is backgrounded — even if the service is already in the foreground). Called directly

122+ * by the companion [start] when a progress refresh is needed while the service is already

123+ * running; falls back to [start] (which goes through startForegroundService) when the

124+ * service isn't alive yet, so the first progress update still lands.

125+ *

126+ * Forwards the full set of run fields (title/sessionId/profileId/progress), not just the

127+ * progress string, so a late-resolved session title or a second run starting after the

128+ * first updates the notification text AND the Stop action's target session/profile.

129+ * Without this, the Stop action would keep targeting the originally-captured session even

130+ * after a profile switch (mirroring the SessionNotifications abort-routing guard). */

131+ @SuppressLint("MissingPermission")

132+ private fun updateProgress(

133+ progress: String?,

134+ sessionTitle: String? = lastTitle,

135+ sessionId: String? = lastSessionId,

136+ profileId: String? = lastProfileId,

137+ ) {

138+ // Guard against the companion start() → instance race: start() reads @Volatile instance

139+ // on a background dispatcher and calls updateProgress, but onDestroy (on the main thread)

140+ // can null instance and call stopForeground between the read and this notify(). isInForeground

141+ // is cleared in onDestroy, so checking it here covers the stopForeground-already-called case

142+ // and avoids touching NotificationManager during teardown.

143+ if (!isInForeground) return

144+ lastTitle = sessionTitle

145+ lastSessionId = sessionId

146+ lastProfileId = profileId

147+ lastProgress = progress

148+ val notification = buildNotification(sessionTitle, sessionId, profileId, progress)

149+ runCatching {

150+ NotificationManagerCompat.from(this).notify(NOTIF_ID, notification)

151+ }.onFailure { Log.w(TAG, "Failed to update foreground notification progress", it) }

152+ }

153+

154+ private fun mainContentIntent(): PendingIntent {

155+ // Tapping the notification opens the app so the user can see the running session.

156+ val openIntent = Intent(this, MainActivity::class.java).apply {

157+ flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP

158+ }

159+ return PendingIntent.getActivity(

160+ this, 0, openIntent,

161+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

162+ )

163+ }

164+

165+ private fun buildNotification(

166+ sessionTitle: String?,

167+ sessionId: String?,

168+ profileId: String? = null,

169+ progress: String? = null,

170+ ): Notification {

171+ val pendingIntent = mainContentIntent()

172+ val contentText = progress ?: sessionTitle ?: getString(R.string.notif_running_text)

173+ val builder = NotificationCompat.Builder(this, NotificationChannels.STATUS)

174+ .setSmallIcon(R.drawable.ic_stat_notify)

175+ .setColor(brandColor(this))

176+ .setContentTitle(getString(R.string.notif_running_title))

177+ .setContentText(contentText)

178+ .setContentIntent(pendingIntent)

179+ .setOngoing(true)

180+ // Show a live elapsed timer so the user can see how long the current run has

181+ // been going — no per-tick plumbing needed; the system renders the chronometer.

182+ // runStartMillis is captured once at the start of the run (see onStartCommand)

183+ // and reused across progress-driven rebuilds so the chronometer base is stable.

184+ .setWhen(runStartMillis)

185+ .setUsesChronometer(true)

186+ .setShowWhen(true)

187+ .setPriority(NotificationCompat.PRIORITY_LOW)

188+ .setCategory(NotificationCompat.CATEGORY_PROGRESS)

189+ // An indeterminate progress bar so the notification reads as actively "in progress"

190+ // at a glance (alongside the chronometer), matching the conventional run affordance.

191+ .setProgress(0, 0, true)

192+ // Add a Stop action so the user can cancel the run without opening the app — the

193+ // core of the "kick it off and walk away" flow. Only when a specific session is

194+ // known (multiple concurrent runs can't be targeted individually). The profile id

195+ // is embedded so [AppContainer.abortRunFromNotification]'s routing guard sends the

196+ // abort to the originating server even if the user has switched profiles between

197+ // starting the run and tapping Stop (mirroring the other notification actions).

198+ if (sessionId != null) {

199+ val stopIntent = Intent(this, NotificationActionReceiver::class.java).apply {

200+ action = NotificationActionReceiver.ACTION_STOP_RUN

201+ putExtra(NotificationActionReceiver.EXTRA_SESSION_ID, sessionId)

202+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

203+ }

204+ // Derive the request code from a SHA-256 of the session id (truncated to 31 bits),

205+ // NOT String.hashCode(): two distinct session ids can share a 32-bit hashCode, and

206+ // with FLAG_UPDATE_CURRENT the second registration overwrites the first's extras —

207+ // so a hash collision between two concurrent runs would make tapping Stop on one

208+ // session's notification broadcast the OTHER session's id. Mirrors SessionNotifications.

209+ // notifId's collision-resistant derivation.

210+ val requestCode = stopRequestCode(sessionId)

211+ val stopPending = PendingIntent.getBroadcast(

212+ this, requestCode, stopIntent,

213+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

214+ )

215+ builder.addAction(

216+ R.drawable.ic_action_stop,

217+ getString(R.string.notif_action_stop),

218+ stopPending,

219+ )

220+ }

221+ return builder.build()

222+ }

223+

224+ // Android 14+ can time out a foreground service (notably the ~6h/day cumulative cap on

225+ // dataSync in Android 15) and calls onTimeout expecting a prompt stop; not stopping risks

226+ // the system force-stopping/ANR-ing the app. Stop cleanly — a still-active run just

227+ // continues without foreground priority. Post a low-priority notification so the user

228+ // knows their long-running task may be paused in the background, rather than silently

229+ // losing foreground priority. Both overloads are covered (the 2-arg form is API 35+).

230+ override fun onTimeout(startId: Int) {

231+ Log.w(TAG, "Foreground service timed out; stopping")

232+ postTimeoutNotification()

233+ stopSelf()

234+ }

235+

236+ override fun onTimeout(startId: Int, fgsType: Int) {

237+ Log.w(TAG, "Foreground service timed out (type=$fgsType); stopping")

238+ postTimeoutNotification()

239+ stopSelf()

240+ }

241+

242+ /** Post a low-priority notification informing the user that the foreground service was

243+ * timed out by the system — the run continues but may be killed by Doze without warning. */

244+ @SuppressLint("MissingPermission")

245+ private fun postTimeoutNotification() {

246+ runCatching {

247+ val notification = NotificationCompat.Builder(this, NotificationChannels.STATUS)

248+ .setSmallIcon(R.drawable.ic_stat_notify)

249+ .setColor(brandColor(this))

250+ .setContentTitle(getString(R.string.notif_running_title))

251+ .setContentText(getString(R.string.notif_fg_timeout_text))

252+ .setContentIntent(mainContentIntent())

253+ .setAutoCancel(true)

254+ .setPriority(NotificationCompat.PRIORITY_LOW)

255+ .build()

256+ NotificationManagerCompat.from(this).notify(NOTIF_TIMEOUT_ID, notification)

257+ }

258+ }

259+

260+ override fun onDestroy() {

261+ // Safety net: if the process is being killed while a run is in progress,

262+ // ensure the notification is removed rather than lingering.

263+ ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)

264+ // Clear the run-start / foreground / instance state so the next run's chronometer

265+ // begins fresh and startForeground is re-asserted on the first intent of the next

266+ // run. These are instance fields, so a recreated service resets them by construction

267+ // — but clearing here also covers the same-instance restart case.

268+ runStartMillis = 0L

269+ isInForeground = false

270+ lastTitle = null

271+ lastSessionId = null

272+ lastProfileId = null

273+ lastProgress = null

274+ instance = null

275+ super.onDestroy()

276+ }

277+

278+ override fun onBind(intent: Intent?): IBinder? = null

279+

280+ // Reset the brand-color cache when the configuration (notably uiMode/night mode) changes

281+ // so the notification icon tint follows the app theme instead of staying pinned to whatever

282+ // the first build resolved. The service isn't recreated on a config change (it's a service,

283+ // not an Activity), so without this the cached color is stale until onDestroy.

284+ override fun onConfigurationChanged(newConfig: Configuration) {

285+ super.onConfigurationChanged(newConfig)

286+ brandColorCache = 0

287+ }

288+

289+ companion object {

290+ private const val TAG = "RunForegroundService"

291+ private const val NOTIF_ID = 1

292+ private const val NOTIF_TIMEOUT_ID = 2

293+

294+ /** Derive a stable, collision-resistant PendingIntent request code from a session id.

295+ * String.hashCode() can collide for distinct session ids; a SHA-256 truncated to 31

296+ * bits makes accidental collisions astronomically unlikely, so two concurrent runs'

297+ * Stop actions can't overwrite each other's PendingIntent extras. Mirrors

298+ * [SessionNotifications.notifId]'s derivation. */

299+ private fun stopRequestCode(sessionId: String): Int {

300+ val digest = runCatching { MessageDigest.getInstance("SHA-256") }

301+ .getOrNull()?.digest(sessionId.toByteArray()) ?: return sessionId.hashCode()

302+ val hash = (((digest[0].toInt() and 0xFF) shl 24) or

303+ ((digest[1].toInt() and 0xFF) shl 16) or

304+ ((digest[2].toInt() and 0xFF) shl 8) or

305+ (digest[3].toInt() and 0xFF)).and(0x7FFFFFFF)

306+ return hash

307+ }

308+ // Brand accent for the foreground notifications' small-icon tint circle. Resolved

309+ // from resources (R.color.notif_brand) so it follows the app theme (light/dark)

310+ // instead of a hardcoded constant. Lazily computed on first use from the app context

311+ // and reset in onConfigurationChanged so a theme toggle mid-run doesn't pin the tint

312+ // to the old theme for the rest of the run.

313+ private var brandColorCache: Int = 0

314+ private fun brandColor(context: Context): Int {

315+ if (brandColorCache == 0) {

316+ brandColorCache = androidx.core.content.ContextCompat.getColor(context, R.color.notif_brand)

317+ }

318+ return brandColorCache

319+ }

320+ // Live reference to the running service instance, published in onStartCommand and

321+ // cleared in onDestroy. @Volatile so [updateProgress]'s read from the app-scope

322+ // coroutine sees the most recent publication. Null when the service isn't running.

323+ @Volatile private var instance: RunForegroundService? = null

324+ const val EXTRA_SESSION_TITLE = "soy.iko.opencode.extra.SESSION_TITLE"

325+ const val EXTRA_SESSION_ID = "soy.iko.opencode.extra.SESSION_ID"

326+ const val EXTRA_PROFILE_ID = "soy.iko.opencode.extra.PROFILE_ID"

327+ const val EXTRA_PROGRESS = "soy.iko.opencode.extra.PROGRESS"

328+

329+ /** Start the service (or refresh an already-running one). [profileId] is embedded in the

330+ * Stop action's PendingIntent so an abort from the notification reaches the originating

331+ * server even after a profile switch. */

332+ fun start(

333+ context: Context,

334+ sessionTitle: String? = null,

335+ sessionId: String? = null,

336+ profileId: String? = null,

337+ progress: String? = null,

338+ ) {

339+ // If the service is already in the foreground, refresh the notification in place

340+ // via NotificationManager.notify (through the live instance) instead of going

341+ // through startForegroundService. On Android 12+, startForegroundService can

342+ // throw ForegroundServiceStartNotAllowedException when the app is backgrounded

343+ // — *even if the service is already running in the foreground* — and the

344+ // runCatching below would swallow it, leaving the progress text un-updated

345+ // precisely when the app is backgrounded (the FGS's whole purpose). The in-place

346+ // notify never throws, so progress refreshes always land while the service runs.

347+ val live = instance

348+ if (live != null) {

349+ // Forward the full set of run fields (not just progress) so a late-resolved

350+ // session title or a second run updates the notification text AND the Stop

351+ // action's target session/profile — otherwise the Stop action would keep

352+ // targeting the originally-captured session even after a profile switch.

353+ live.updateProgress(progress, sessionTitle, sessionId, profileId)

354+ return

355+ }

356+ // startForegroundService can throw ForegroundServiceStartNotAllowedException

357+ // on Android 12+ if the app is in the background. Wrap it so a backgrounded

358+ // start (e.g. the user navigates away at the wrong moment) doesn't crash.

359+ runCatching {

360+ val intent = Intent(context, RunForegroundService::class.java)

361+ sessionTitle?.let { intent.putExtra(EXTRA_SESSION_TITLE, it) }

362+ sessionId?.let { intent.putExtra(EXTRA_SESSION_ID, it) }

363+ profileId?.let { intent.putExtra(EXTRA_PROFILE_ID, it) }

364+ progress?.let { intent.putExtra(EXTRA_PROGRESS, it) }

365+ context.startForegroundService(intent)

366+ }.onFailure {

367+ Log.w(TAG, "startForegroundService failed; running without foreground priority", it)

368+ }

369+ }

370+

371+ fun stop(context: Context) {

372+ context.stopService(Intent(context, RunForegroundService::class.java))

373+ }

374+ }

375+}

app/src/main/java/soy/iko/opencode/notification/SessionNotifications.ktnew file+564

@@ -0,0 +1,564 @@

1+package soy.iko.opencode.notification

2+

3+import android.annotation.SuppressLint

4+import android.app.Notification

5+import android.app.NotificationManager

6+import android.app.PendingIntent

7+import android.content.Context

8+import android.content.Intent

9+import android.os.Build

10+import android.util.Log

11+import androidx.core.app.NotificationCompat

12+import androidx.core.app.NotificationManagerCompat

13+import androidx.core.app.RemoteInput

14+import soy.iko.opencode.MainActivity

15+import soy.iko.opencode.R

16+import soy.iko.opencode.data.model.Permission

17+import soy.iko.opencode.data.model.PermissionResponse

18+import java.security.MessageDigest

19+

20+/**

21+ * Builds and posts the app's session notifications:

22+ *

23+ * - [postCompleted]: a "session ready" notification when a background run finishes, with an

24+ * inline [RemoteInput] Reply action so a follow-up can be sent without opening the app.

25+ * - [postPermission]: a heads-up notification when a paused tool needs approval, with

26+ * Allow once / Always / Reject action buttons handled by [NotificationActionReceiver].

27+ * - [postError]: a notification when a background run fails.

28+ *

29+ * Tapping a notification body opens the session via [MainActivity] with an

30+ * [MainActivity.EXTRA_SESSION_ID] extra. Notification posting is guarded for Android 13+

31+ * runtime permission: if the user hasn't granted POST_NOTIFICATIONS, the post is silently

32+ * skipped rather than throwing.

33+ */

34+object SessionNotifications {

35+

36+ private const val NOTIF_ID_PREFIX = 4000

37+ private const val TAG = "SessionNotifications"

38+ // Fixed notification IDs use NEGATIVE space (mirroring the SUMMARY_*_ID constants below)

39+ // so they can never collide with the hash-derived per-session IDs returned by notifId(),

40+ // which are always positive (NOTIF_ID_PREFIX + (hash % (0x7FFFFFFF - NOTIF_ID_PREFIX)),

41+ // range [4000, 2147483646]). A collision would let a session-specific notification

42+ // overwrite or be canceled by the fixed one (~1 in 2 billion per session, but a real

43+ // ID-space flaw). Negative IDs are valid for NotificationManager.cancel/notify.

44+ private const val UNREAD_BADGE_ID = -10

45+ private const val CONNECTION_LOST_ID = -11

46+

47+ // Distinct namespaces so a session can have a completion, a permission, and an error

48+ // notification outstanding at once without their ids colliding.

49+ private const val NS_COMPLETED = "done"

50+ private const val NS_PERMISSION = "perm"

51+ private const val NS_ERROR = "err"

52+

53+ private val notifIdRegex = Regex("[^A-Za-z0-9_-]")

54+

55+ /** Derive a stable, collision-resistant notification id from a namespace + session id.

56+ * String.hashCode() can collide for different inputs; a SHA-256 truncated to 31

57+ * bits makes accidental collisions astronomically unlikely. The namespace keeps the

58+ * three notification kinds for one session in separate id spaces. */

59+ private fun notifId(namespace: String, sessionId: String): Int {

60+ val digest = runCatching { MessageDigest.getInstance("SHA-256") }

61+ .getOrNull()?.digest("$namespace:$sessionId".toByteArray()) ?: return NOTIF_ID_PREFIX

62+ // Take the first 4 bytes, mask to 31 bits (always positive) to fit an Int id.

63+ // Kotlin's shl/or/and are equal-precedence infix functions evaluated strictly

64+ // left-to-right, so the shifts MUST be parenthesized individually — otherwise

65+ // `a shl 24 or b shl 16` parses as `((a shl 24) or b) shl 16`, shifting the first

66+ // byte out of the Int entirely and collapsing the id's entropy.

67+ val hash = (((digest[0].toInt() and 0xFF) shl 24) or

68+ ((digest[1].toInt() and 0xFF) shl 16) or

69+ ((digest[2].toInt() and 0xFF) shl 8) or

70+ (digest[3].toInt() and 0xFF)).and(0x7FFFFFFF)

71+ // Offset by NOTIF_ID_PREFIX, staying within the positive Int range.

72+ // Using modulo ensures the prefix is preserved without Int overflow.

73+ return NOTIF_ID_PREFIX + (hash % (0x7FFFFFFF - NOTIF_ID_PREFIX))

74+ }

75+

76+ /** Respect the POST_NOTIFICATIONS runtime permission (Android 13+): if the user denied

77+ * it, callers should skip posting instead of throwing. Foreground-service notifications

78+ * are exempt, so the running indicator still shows during a run. */

79+ private fun canPost(context: Context): Boolean =

80+ Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU ||

81+ androidx.core.content.ContextCompat.checkSelfPermission(

82+ context, android.Manifest.permission.POST_NOTIFICATIONS,

83+ ) == android.content.pm.PackageManager.PERMISSION_GRANTED

84+

85+ /** A PendingIntent that opens [sessionId] in the app when the notification body is tapped.

86+ * [profileId] (the originating server) is embedded so a tap after the user has switched

87+ * servers routes back to the server that ran the session, not whichever is active —

88+ * mirroring the Reply and permission action intents. */

89+ private fun openSessionIntent(

90+ context: Context, sessionId: String, requestCode: Int, profileId: String?,

91+ ): PendingIntent {

92+ // Sanitize the session id before embedding it in the deep-link URI so characters like

93+ // /, ?, # can't inject path segments or query parameters.

94+ val safeId = notifIdRegex.replace(sessionId, "")

95+ val openIntent = Intent(context, MainActivity::class.java).apply {

96+ action = Intent.ACTION_VIEW

97+ data = android.net.Uri.parse("opencode://session/$safeId")

98+ flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP

99+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

100+ }

101+ return PendingIntent.getActivity(

102+ context, requestCode, openIntent,

103+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

104+ )

105+ }

106+

107+ // canPost() checks POST_NOTIFICATIONS before every notify(); lint can't follow the

108+ // check through the helper, so suppress its MissingPermission flag on these posts.

109+ @SuppressLint("MissingPermission")

110+ fun postCompleted(context: Context, sessionId: String, title: String, profileId: String?) {

111+ if (!canPost(context)) return

112+ val notifId = notifId(NS_COMPLETED, sessionId)

113+

114+ // Inline reply: a RemoteInput-backed action that broadcasts the typed follow-up to

115+ // NotificationActionReceiver. The PendingIntent MUST be mutable so the system can

116+ // fill in the RemoteInput results before delivering it. [profileId] is embedded so the

117+ // receiver enqueues the reply against the server that ran the session, not whichever

118+ // server is active when the user taps (mirrors postPermission).

119+ val remoteInput = RemoteInput.Builder(NotificationActionReceiver.KEY_REPLY_TEXT)

120+ .setLabel(context.getString(R.string.notif_reply_hint))

121+ .build()

122+ val replyIntent = Intent(context, NotificationActionReceiver::class.java).apply {

123+ action = NotificationActionReceiver.ACTION_REPLY

124+ putExtra(NotificationActionReceiver.EXTRA_SESSION_ID, sessionId)

125+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

126+ }

127+ val replyPending = PendingIntent.getBroadcast(

128+ context, notifId, replyIntent,

129+ PendingIntent.FLAG_UPDATE_CURRENT or mutableFlag(),

130+ )

131+ val replyAction = NotificationCompat.Action.Builder(

132+ R.drawable.ic_action_reply,

133+ context.getString(R.string.notif_action_reply),

134+ replyPending,

135+ ).addRemoteInput(remoteInput).setAllowGeneratedReplies(true).build()

136+

137+ // "Mark read" action so the user can triage a completion without opening the session.

138+ val markReadIntent = Intent(context, NotificationActionReceiver::class.java).apply {

139+ action = NotificationActionReceiver.ACTION_MARK_READ

140+ putExtra(NotificationActionReceiver.EXTRA_SESSION_ID, sessionId)

141+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

142+ }

143+ val markReadPending = PendingIntent.getBroadcast(

144+ context, notifId + 100, markReadIntent,

145+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

146+ )

147+ val markReadAction = NotificationCompat.Action.Builder(

148+ R.drawable.ic_action_check,

149+ context.getString(R.string.notif_action_mark_read),

150+ markReadPending,

151+ ).build()

152+

153+ val notification = NotificationCompat.Builder(context, NotificationChannels.COMPLETED)

154+ .setSmallIcon(R.drawable.ic_stat_notify)

155+ .setContentTitle(context.getString(R.string.notif_completed_title))

156+ // No % escaping here: getString(id, arg) inserts the argument verbatim and

157+ // never re-scans it for format specifiers, so escaping the title would show

158+ // literal doubled percent signs (e.g. a "50% done" title as "50%% done").

159+ .setContentText(context.getString(R.string.notif_completed_text, title))

160+ .setAutoCancel(true)

161+ .setOnlyAlertOnce(true)

162+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

163+ .addAction(replyAction)

164+ .addAction(markReadAction)

165+ .setCategory(NotificationCompat.CATEGORY_MESSAGE)

166+ .setPriority(NotificationCompat.PRIORITY_DEFAULT)

167+ // Group notifications from the same server so multiple completions collapse into

168+ // a stackable group on Android 7+ instead of filling the shade with individual entries.

169+ .setGroup(GROUP_COMPLETED)

170+ .build()

171+

172+ runCatching {

173+ NotificationManagerCompat.from(context).notify(notifId, notification)

174+ // Post a summary notification so the group has a single top-level entry in the shade.

175+ postCompletedSummary(context)

176+ }.onFailure { Log.w(TAG, "Failed to post completion notification", it) }

177+ }

178+

179+ /** Post (or update) a summary notification for the completed-sessions group so multiple

180+ * completions collapse into one stackable entry instead of filling the shade. */

181+ @SuppressLint("MissingPermission")

182+ private fun postCompletedSummary(context: Context) {

183+ // The summary needs a content intent so tapping it opens the app (and so

184+ // setAutoCancel can fire on tap — without a PendingIntent the tap does nothing

185+ // and the summary can only be dismissed by swiping). A plain open-app intent is

186+ // right for a group summary: there's no single session to route to.

187+ val openIntent = Intent(context, MainActivity::class.java).apply {

188+ flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP

189+ }

190+ val contentIntent = PendingIntent.getActivity(

191+ context, 0, openIntent,

192+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

193+ )

194+ val summary = NotificationCompat.Builder(context, NotificationChannels.COMPLETED)

195+ .setSmallIcon(R.drawable.ic_stat_notify)

196+ .setContentTitle(context.getString(R.string.notif_completed_title))

197+ .setContentText(context.getString(R.string.app_name))

198+ .setContentIntent(contentIntent)

199+ .setAutoCancel(true)

200+ .setCategory(NotificationCompat.CATEGORY_MESSAGE)

201+ .setGroup(GROUP_COMPLETED)

202+ .setGroupSummary(true)

203+ .build()

204+ runCatching {

205+ NotificationManagerCompat.from(context).notify(SUMMARY_COMPLETED_ID, summary)

206+ }.onFailure { Log.w(TAG, "Failed to post completion summary notification", it) }

207+ }

208+

209+ /** Post a heads-up notification for a permission request with Allow once / Always /

210+ * Reject action buttons. [sessionTitle] labels the notification; [permission]'s title/

211+ * pattern/type supplies the detail line. [profileId] is embedded in the action intents

212+ * so the receiver routes the response back to the server that posted the request, not

213+ * whichever server happens to be active when the user taps. */

214+ @SuppressLint("MissingPermission")

215+ fun postPermission(context: Context, permission: Permission, sessionTitle: String, profileId: String?) {

216+ if (!canPost(context)) return

217+ val sessionId = permission.sessionID.takeIf { it.isNotBlank() } ?: return

218+ val notifId = notifId(NS_PERMISSION, sessionId)

219+ val detail = permission.title?.takeIf { it.isNotBlank() }

220+ ?: permission.patternText?.takeIf { it.isNotBlank() }

221+ ?: permission.type?.takeIf { it.isNotBlank() }

222+ ?: context.getString(R.string.notif_permission_fallback)

223+

224+ val builder = NotificationCompat.Builder(context, NotificationChannels.PERMISSION)

225+ .setSmallIcon(R.drawable.ic_stat_notify)

226+ .setContentTitle(context.getString(R.string.notif_permission_title, sessionTitle))

227+ .setContentText(detail)

228+ .setStyle(NotificationCompat.BigTextStyle().bigText(detail))

229+ .setAutoCancel(true)

230+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

231+ .setPriority(NotificationCompat.PRIORITY_HIGH)

232+ .setGroup(GROUP_PERMISSION)

233+ .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)

234+ .setPublicVersion(

235+ NotificationCompat.Builder(context, NotificationChannels.PERMISSION)

236+ .setSmallIcon(R.drawable.ic_stat_notify)

237+ .setContentTitle(context.getString(R.string.notif_permission_public))

238+ .build(),

239+ )

240+

241+ // One action per response. Each PendingIntent needs a distinct request code or

242+ // FLAG_UPDATE_CURRENT would collapse them into one (the last extras win).

243+ listOf(

244+ Triple(PermissionResponse.ONCE, R.string.notif_action_allow_once, R.drawable.ic_action_check),

245+ Triple(PermissionResponse.ALWAYS, R.string.notif_action_always, R.drawable.ic_action_check),

246+ Triple(PermissionResponse.REJECT, R.string.notif_action_reject, R.drawable.ic_action_block),

247+ ).forEach { (response, labelRes, iconRes) ->

248+ val intent = Intent(context, NotificationActionReceiver::class.java).apply {

249+ action = NotificationActionReceiver.ACTION_PERMISSION

250+ putExtra(NotificationActionReceiver.EXTRA_SESSION_ID, sessionId)

251+ putExtra(NotificationActionReceiver.EXTRA_PERMISSION_ID, permission.id)

252+ putExtra(NotificationActionReceiver.EXTRA_RESPONSE, response.wire)

253+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

254+ }

255+ val pending = PendingIntent.getBroadcast(

256+ context, notifId + response.ordinal + 1, intent,

257+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

258+ )

259+ builder.addAction(iconRes, context.getString(labelRes), pending)

260+ }

261+

262+ runCatching { NotificationManagerCompat.from(context).notify(notifId, builder.build()) }

263+ .onFailure { Log.w(TAG, "Failed to post permission notification", it) }

264+ // Group permission notifications so a multi-session burst collapses into a stackable

265+ // group instead of filling the shade — mirroring the completed-sessions grouping.

266+ runCatching { postGroupSummary(context, NotificationChannels.PERMISSION, GROUP_PERMISSION, SUMMARY_PERMISSION_ID) }

267+ .onFailure { Log.w(TAG, "Failed to post permission summary notification", it) }

268+ }

269+

270+ /** Post a notification when a permission prompt auto-rejected on timeout. A user who

271+ * walked away from an in-app prompt returns to find the run stopped with no on-screen

272+ * record of why; this leaves a persistent trace in the shade explaining the stop and

273+ * offering to re-open the session. Uses the permission channel (heads-up) so it's seen. */

274+ @SuppressLint("MissingPermission")

275+ fun postPermissionAutoRejected(context: Context, sessionId: String, sessionTitle: String, profileId: String?) {

276+ if (!canPost(context)) return

277+ val notifId = notifId(NS_PERMISSION, sessionId) + 1 // distinct from the live prompt

278+ val detail = context.getString(R.string.notif_permission_auto_rejected_text)

279+ val builder = NotificationCompat.Builder(context, NotificationChannels.PERMISSION)

280+ .setSmallIcon(R.drawable.ic_stat_notify)

281+ .setContentTitle(context.getString(R.string.notif_permission_auto_rejected_title, sessionTitle))

282+ .setContentText(detail)

283+ .setStyle(NotificationCompat.BigTextStyle().bigText(detail))

284+ .setAutoCancel(true)

285+ .setOnlyAlertOnce(true)

286+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

287+ .setCategory(NotificationCompat.CATEGORY_STATUS)

288+ .setPriority(NotificationCompat.PRIORITY_DEFAULT)

289+ .setGroup(GROUP_PERMISSION)

290+ .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)

291+ runCatching { NotificationManagerCompat.from(context).notify(notifId, builder.build()) }

292+ .onFailure { Log.w(TAG, "Failed to post permission auto-reject notification", it) }

293+ runCatching { postGroupSummary(context, NotificationChannels.PERMISSION, GROUP_PERMISSION, SUMMARY_PERMISSION_ID) }

294+ .onFailure { Log.w(TAG, "Failed to post permission summary notification", it) }

295+ }

296+

297+ /** Post a notification when a background run fails. */

298+ @SuppressLint("MissingPermission")

299+ fun postError(context: Context, sessionId: String, title: String, profileId: String? = null) {

300+ if (!canPost(context)) return

301+ val notifId = notifId(NS_ERROR, sessionId)

302+ val builder = NotificationCompat.Builder(context, NotificationChannels.ERROR)

303+ .setSmallIcon(R.drawable.ic_stat_notify)

304+ .setContentTitle(context.getString(R.string.notif_error_title))

305+ .setContentText(context.getString(R.string.notif_error_text, title))

306+ .setAutoCancel(true)

307+ .setOnlyAlertOnce(true)

308+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

309+ .setCategory(NotificationCompat.CATEGORY_ERROR)

310+ .setPriority(NotificationCompat.PRIORITY_DEFAULT)

311+ // Group error notifications so a burst of failures collapses into a stackable group.

312+ .setGroup(GROUP_ERROR)

313+ .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)

314+ .setPublicVersion(

315+ NotificationCompat.Builder(context, NotificationChannels.ERROR)

316+ .setSmallIcon(R.drawable.ic_stat_notify)

317+ .setContentTitle(context.getString(R.string.notif_error_public))

318+ .build(),

319+ )

320+ // A "Retry last" action lets the user re-run the failed prompt straight from the shade

321+ // without opening the app — a failed run is exactly when a one-tap retry is most useful.

322+ val retryIntent = Intent(context, NotificationActionReceiver::class.java).apply {

323+ action = NotificationActionReceiver.ACTION_RETRY_LAST

324+ putExtra(NotificationActionReceiver.EXTRA_SESSION_ID, sessionId)

325+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

326+ }

327+ val retryPending = PendingIntent.getBroadcast(

328+ context, notifId + 10, retryIntent,

329+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

330+ )

331+ builder.addAction(R.drawable.ic_action_refresh, context.getString(R.string.retry_last), retryPending)

332+ val notification = builder.build()

333+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

334+ .onFailure { Log.w(TAG, "Failed to post error notification", it) }

335+ runCatching { postGroupSummary(context, NotificationChannels.ERROR, GROUP_ERROR, SUMMARY_ERROR_ID) }

336+ .onFailure { Log.w(TAG, "Failed to post error summary notification", it) }

337+ }

338+

339+ /** Update the completion notification to show a brief "Sent" confirmation after a

340+ * successful inline reply, replacing the completion notification's content. Auto-cancels

341+ * on tap (via a [setContentIntent]) so it doesn't linger. */

342+ @SuppressLint("MissingPermission")

343+ fun postReplySent(context: Context, sessionId: String, profileId: String? = null) {

344+ if (!canPost(context)) {

345+ cancel(context, sessionId)

346+ return

347+ }

348+ val notifId = notifId(NS_COMPLETED, sessionId)

349+ val notification = NotificationCompat.Builder(context, NotificationChannels.COMPLETED)

350+ .setSmallIcon(R.drawable.ic_stat_notify)

351+ .setContentTitle(context.getString(R.string.notif_reply_sent))

352+ // setAutoCancel(true) only fires when the user taps a contentIntent; without one

353+ // the "Sent" notification lingers indefinitely (the prior behavior). Wire the

354+ // open-session intent so a tap dismisses the notification and opens the session.

355+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

356+ .setAutoCancel(true)

357+ .setPriority(NotificationCompat.PRIORITY_LOW)

358+ .setGroup(GROUP_COMPLETED)

359+ .build()

360+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

361+ .onFailure { Log.w(TAG, "Failed to post reply-sent notification", it) }

362+ }

363+

364+ /** An inline reply couldn't be durably enqueued (no resolvable profile, or the outbox write

365+ * threw). Cancel the completion notification so SystemUI's RemoteInput field doesn't stay

366+ * stuck in the "sending…" spinner — a stuck field can't be resubmitted — and post an error

367+ * notification so the reply isn't silently lost and the user can reopen the session to retry. */

368+ @SuppressLint("MissingPermission")

369+ fun postReplyFailed(context: Context, sessionId: String, profileId: String? = null) {

370+ NotificationManagerCompat.from(context).cancel(notifId(NS_COMPLETED, sessionId))

371+ maybeCancelSummary(context, GROUP_COMPLETED, SUMMARY_COMPLETED_ID)

372+ if (!canPost(context)) return

373+ val notifId = notifId(NS_ERROR, sessionId)

374+ val notification = NotificationCompat.Builder(context, NotificationChannels.ERROR)

375+ .setSmallIcon(R.drawable.ic_stat_notify)

376+ .setContentTitle(context.getString(R.string.notif_reply_failed_title))

377+ .setContentText(context.getString(R.string.notif_reply_failed_text))

378+ .setAutoCancel(true)

379+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

380+ .setCategory(NotificationCompat.CATEGORY_ERROR)

381+ .setPriority(NotificationCompat.PRIORITY_DEFAULT)

382+ // Group with the other error notifications (mirrors postError/postOutboxDropped)

383+ // so this notification joins the GROUP_ERROR stack and the group summary stays

384+ // consistent. Without .setGroup, reusing the NS_ERROR id space would overwrite a

385+ // prior postError for this session without the group association, leaving an

386+ // orphaned SUMMARY_ERROR_ID group summary with no children lingering in the shade.

387+ .setGroup(GROUP_ERROR)

388+ .build()

389+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

390+ .onFailure { Log.w(TAG, "Failed to post reply-failed notification", it) }

391+ runCatching { postGroupSummary(context, NotificationChannels.ERROR, GROUP_ERROR, SUMMARY_ERROR_ID) }

392+ .onFailure { Log.w(TAG, "Failed to post error summary notification", it) }

393+ }

394+

395+ /** A queued outbox message was permanently undeliverable (e.g. the target session was

396+ * deleted server-side → 404). Distinct from [postError] (which is titled "Run failed"):

397+ * no run failed — a queued reply couldn't be delivered. Uses a distinct title/body so the

398+ * user understands the failure mode and recovery action (open the session and re-send). */

399+ @SuppressLint("MissingPermission")

400+ fun postOutboxDropped(context: Context, sessionId: String, sessionTitle: String, profileId: String? = null) {

401+ if (!canPost(context)) return

402+ val notifId = notifId(NS_ERROR, sessionId)

403+ val notification = NotificationCompat.Builder(context, NotificationChannels.ERROR)

404+ .setSmallIcon(R.drawable.ic_stat_notify)

405+ .setContentTitle(context.getString(R.string.message_not_delivered))

406+ .setContentText(context.getString(R.string.message_not_delivered_body, sessionTitle))

407+ .setAutoCancel(true)

408+ .setOnlyAlertOnce(true)

409+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

410+ .setCategory(NotificationCompat.CATEGORY_ERROR)

411+ .setPriority(NotificationCompat.PRIORITY_DEFAULT)

412+ .setGroup(GROUP_ERROR)

413+ .build()

414+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

415+ .onFailure { Log.w(TAG, "Failed to post outbox-dropped notification", it) }

416+ runCatching { postGroupSummary(context, NotificationChannels.ERROR, GROUP_ERROR, SUMMARY_ERROR_ID) }

417+ .onFailure { Log.w(TAG, "Failed to post error summary notification", it) }

418+ }

419+

420+ /** The SSE stream hit a non-retryable failure (Failed/AuthFailed) while the app was

421+ * backgrounded during an active run, so the in-app banner isn't visible and the run is

422+ * effectively stranded. Posts a low-priority notification so a backgrounded user is

423+ * signaled that their run is stalled and can tap to reconnect. Distinct from [postError]

424+ * (a run error) — this is a connection loss, not a run failure. */

425+ @SuppressLint("MissingPermission")

426+ fun postConnectionLost(context: Context, profileLabel: String, profileId: String?) {

427+ if (!canPost(context)) return

428+ val notifId = CONNECTION_LOST_ID

429+ // Tap reopens the app at the server list so the user can reconnect / fix credentials.

430+ val openIntent = Intent(context, MainActivity::class.java).apply {

431+ flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP

432+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

433+ }

434+ val openPending = PendingIntent.getActivity(

435+ context, notifId, openIntent,

436+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

437+ )

438+ val notification = NotificationCompat.Builder(context, NotificationChannels.ERROR)

439+ .setSmallIcon(R.drawable.ic_stat_notify)

440+ .setContentTitle(context.getString(R.string.connection_lost, profileLabel))

441+ .setContentText(context.getString(R.string.connection_lost_tap))

442+ .setAutoCancel(true)

443+ .setOnlyAlertOnce(true)

444+ .setContentIntent(openPending)

445+ .setCategory(NotificationCompat.CATEGORY_STATUS)

446+ .setPriority(NotificationCompat.PRIORITY_LOW)

447+ .build()

448+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

449+ .onFailure { Log.w(TAG, "Failed to post connection-lost notification", it) }

450+ }

451+

452+ /** Cancel a previously-posted [postConnectionLost] notification (e.g. on reconnect). */

453+ fun cancelConnectionLost(context: Context) {

454+ NotificationManagerCompat.from(context).cancel(CONNECTION_LOST_ID)

455+ }

456+

457+ /** FLAG_MUTABLE where required (Android 12+) so RemoteInput results can be injected. */

458+ private fun mutableFlag(): Int =

459+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_MUTABLE else 0

460+

461+ /** Cancel a session's completion notification (e.g. when the user opens it). */

462+ fun cancel(context: Context, sessionId: String) {

463+ NotificationManagerCompat.from(context).cancel(notifId(NS_COMPLETED, sessionId))

464+ maybeCancelSummary(context, GROUP_COMPLETED, SUMMARY_COMPLETED_ID)

465+ }

466+

467+ /**

468+ * Reflect the total number of unread sessions as a launcher-icon badge. Android only badges

469+ * the launcher icon via a notification on a badge-enabled channel, so this posts a silent,

470+ * min-importance notification with [.setNumber] on the [NotificationChannels.UNREAD] channel

471+ * when [totalUnread] > 0, and cancels it when it drops to 0. Skipped entirely without

472+ * POST_NOTIFICATIONS permission (Android 13+) — the badge just won't show, no error.

473+ */

474+ @SuppressLint("MissingPermission")

475+ fun updateUnreadBadge(context: Context, totalUnread: Int) {

476+ val nm = NotificationManagerCompat.from(context)

477+ if (totalUnread <= 0) {

478+ nm.cancel(UNREAD_BADGE_ID)

479+ return

480+ }

481+ if (!canPost(context)) return

482+ val notification = NotificationCompat.Builder(context, NotificationChannels.UNREAD)

483+ .setSmallIcon(R.drawable.ic_stat_notify)

484+ .setContentTitle(context.getString(R.string.app_name))

485+ .setContentText(context.resources.getQuantityString(R.plurals.unread_sessions, totalUnread, totalUnread))

486+ .setNumber(totalUnread.coerceAtMost(999))

487+ .setOnlyAlertOnce(true)

488+ .setSilent(true)

489+ .setShowWhen(false)

490+ .setPriority(NotificationCompat.PRIORITY_MIN)

491+ .build()

492+ runCatching { nm.notify(UNREAD_BADGE_ID, notification) }

493+ .onFailure { Log.w(TAG, "Failed to post unread badge notification", it) }

494+ }

495+

496+ /** Cancel a session's permission notification (on reply, or when the user opens it). Also

497+ * cancels the auto-rejected-permission notification (posted under notifId + 1) so opening

498+ * the session by any route other than tapping that notification clears it too — without

499+ * this a stale "auto-rejected" heads-up lingers in the shade (setAutoCancel only dismisses

500+ * on a direct tap). */

501+ fun cancelPermission(context: Context, sessionId: String) {

502+ val nm = NotificationManagerCompat.from(context)

503+ val baseId = notifId(NS_PERMISSION, sessionId)

504+ nm.cancel(baseId)

505+ nm.cancel(baseId + 1) // postPermissionAutoRejected uses baseId + 1

506+ maybeCancelSummary(context, GROUP_PERMISSION, SUMMARY_PERMISSION_ID)

507+ }

508+

509+ /** Cancel a session's error notification (e.g. when the user opens it). Without this a

510+ * stale "run failed" notification lingers when the session is opened by any route other

511+ * than tapping the notification itself (setAutoCancel only clears it on a direct tap). */

512+ fun cancelError(context: Context, sessionId: String) {

513+ NotificationManagerCompat.from(context).cancel(notifId(NS_ERROR, sessionId))

514+ maybeCancelSummary(context, GROUP_ERROR, SUMMARY_ERROR_ID)

515+ }

516+

517+ /** Build the lock-screen (public) version of a notification: only a generic title, no

518+ * detail line, so sensitive file paths / commands in the real content aren't revealed

519+ * while the device is locked. */

520+ /** When the last child of a group is dismissed, cancel its lingering summary so it

521+ * doesn't sit empty in the shade. NotificationManagerCompat lacks getActiveNotifications,

522+ * so reach for the platform NotificationManager. The children/summary are posted without

523+ * a tag, so matching by [android.app.Notification.getGroup] (plus excluding the summary

524+ * id) is the reliable way to tell if any child remains. */

525+ private fun maybeCancelSummary(context: Context, group: String, summaryId: Int) {

526+ val nm = context.getSystemService(Context.NOTIFICATION_SERVICE) as? NotificationManager

527+ ?: return

528+ val active = try {

529+ nm.activeNotifications

530+ } catch (e: Exception) {

531+ Log.w(TAG, "Failed to query active notifications for summary cleanup", e)

532+ return

533+ }

534+ val hasChild = active.any { it.id != summaryId && it.notification?.group == group }

535+ if (!hasChild) {

536+ runCatching { NotificationManagerCompat.from(context).cancel(summaryId) }

537+ .onFailure { Log.w(TAG, "Failed to cancel empty group summary", it) }

538+ }

539+ }

540+

541+ private const val GROUP_COMPLETED = "soy.iko.opencode.COMPLETED"

542+ private const val GROUP_PERMISSION = "soy.iko.opencode.PERMISSION"

543+ private const val GROUP_ERROR = "soy.iko.opencode.ERROR"

544+ private const val SUMMARY_COMPLETED_ID = -1

545+ private const val SUMMARY_PERMISSION_ID = -2

546+ private const val SUMMARY_ERROR_ID = -3

547+

548+ /** Post a summary notification for a group so multiple entries collapse into one stackable

549+ * entry in the shade instead of filling it. */

550+ @SuppressLint("MissingPermission")

551+ private fun postGroupSummary(context: Context, channelId: String, group: String, summaryId: Int) {

552+ if (!canPost(context)) return

553+ val summary = NotificationCompat.Builder(context, channelId)

554+ .setSmallIcon(R.drawable.ic_stat_notify)

555+ .setContentTitle(context.getString(R.string.app_name))

556+ .setAutoCancel(true)

557+ .setGroup(group)

558+ .setGroupSummary(true)

559+ .build()

560+ runCatching {

561+ NotificationManagerCompat.from(context).notify(summaryId, summary)

562+ }.onFailure { Log.w(TAG, "Failed to post group summary notification", it) }

563+ }

564+}

app/src/main/java/soy/iko/opencode/platform/AppShortcuts.ktnew file+65

@@ -0,0 +1,65 @@

1+package soy.iko.opencode.platform

2+

3+import android.content.Context

4+import android.content.Intent

5+import android.net.Uri

6+import androidx.core.content.pm.ShortcutInfoCompat

7+import androidx.core.content.pm.ShortcutManagerCompat

8+import androidx.core.graphics.drawable.IconCompat

9+import soy.iko.opencode.MainActivity

10+import soy.iko.opencode.R

11+import soy.iko.opencode.data.repo.RecentSession

12+import soy.iko.opencode.notification.NotificationActionReceiver

13+

14+/**

15+ * Maintains the app's dynamic launcher shortcuts (long-press the icon): "New session" and

16+ * "Resume last". Rebuilt whenever the recent-session list changes so "Resume last" points at

17+ * the most recent conversation via the existing `opencode://session/{id}` deep link.

18+ */

19+object AppShortcuts {

20+

21+ private const val ID_NEW = "new_session"

22+ private const val ID_RESUME = "resume_last"

23+ private val idRegex = Regex("[^A-Za-z0-9_-]")

24+

25+ fun update(context: Context, lastSession: RecentSession?) {

26+ val ctx = context.applicationContext

27+ val shortcuts = mutableListOf<ShortcutInfoCompat>()

28+

29+ shortcuts += ShortcutInfoCompat.Builder(ctx, ID_NEW)

30+ .setShortLabel(ctx.getString(R.string.shortcut_new_short))

31+ .setLongLabel(ctx.getString(R.string.shortcut_new_long))

32+ .setIcon(IconCompat.createWithResource(ctx, R.drawable.ic_launcher_foreground))

33+ .setIntent(

34+ Intent(ctx, MainActivity::class.java).apply { action = MainActivity.ACTION_NEW_SESSION },

35+ )

36+ .build()

37+

38+ if (lastSession != null) {

39+ val safeId = idRegex.replace(lastSession.id, "")

40+ if (safeId.isNotEmpty()) {

41+ shortcuts += ShortcutInfoCompat.Builder(ctx, ID_RESUME)

42+ .setShortLabel(ctx.getString(R.string.shortcut_resume_short))

43+ .setLongLabel(

44+ lastSession.title.ifBlank { ctx.getString(R.string.shortcut_resume_long) }.take(40),

45+ )

46+ .setIcon(IconCompat.createWithResource(ctx, R.drawable.ic_launcher_foreground))

47+ .setIntent(

48+ Intent(ctx, MainActivity::class.java).apply {

49+ action = Intent.ACTION_VIEW

50+ data = Uri.parse("opencode://session/$safeId")

51+ // Embed the profile id so the session opens under the server that

52+ // ran it, not whichever is active when the user taps — mirrors the

53+ // widget and notification action paths.

54+ if (lastSession.profileId.isNotBlank()) {

55+ putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, lastSession.profileId)

56+ }

57+ },

58+ )

59+ .build()

60+ }

61+ }

62+

63+ runCatching { ShortcutManagerCompat.setDynamicShortcuts(ctx, shortcuts) }

64+ }

65+}

app/src/main/java/soy/iko/opencode/platform/NewSessionTileService.ktnew file+33

@@ -0,0 +1,33 @@

1+package soy.iko.opencode.platform

2+

3+import android.app.PendingIntent

4+import android.content.Intent

5+import android.os.Build

6+import android.service.quicksettings.TileService

7+import soy.iko.opencode.MainActivity

8+

9+/**

10+ * Quick-settings tile that starts a new opencode session. Tapping launches [MainActivity]

11+ * with [MainActivity.ACTION_NEW_SESSION]; the app creates and opens a fresh session once

12+ * connected. On Android 14+ [startActivityAndCollapse] requires a PendingIntent.

13+ */

14+class NewSessionTileService : TileService() {

15+

16+ override fun onClick() {

17+ super.onClick()

18+ val intent = Intent(this, MainActivity::class.java).apply {

19+ action = MainActivity.ACTION_NEW_SESSION

20+ addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_SINGLE_TOP)

21+ }

22+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {

23+ val pending = PendingIntent.getActivity(

24+ this, 0, intent,

25+ PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,

26+ )

27+ startActivityAndCollapse(pending)

28+ } else {

29+ @Suppress("DEPRECATION", "StartActivityAndCollapseDeprecated")

30+ startActivityAndCollapse(intent)

31+ }

32+ }

33+}

app/src/main/java/soy/iko/opencode/platform/SessionsWidgetProvider.ktnew file+83

@@ -0,0 +1,83 @@

1+package soy.iko.opencode.platform

2+

3+import android.app.PendingIntent

4+import android.appwidget.AppWidgetManager

5+import android.appwidget.AppWidgetProvider

6+import android.content.ComponentName

7+import android.content.Context

8+import android.content.Intent

9+import android.net.Uri

10+import android.os.Build

11+import android.widget.RemoteViews

12+import soy.iko.opencode.MainActivity

13+import soy.iko.opencode.R

14+

15+/**

16+ * Home-screen widget listing recent opencode sessions (fed by

17+ * [soy.iko.opencode.data.repo.RecentSessionsStore]) with a "New session" action. Each row deep-links

18+ * into its session; the header opens the app. The list is backed by [SessionsWidgetService].

19+ */

20+class SessionsWidgetProvider : AppWidgetProvider() {

21+

22+ override fun onUpdate(context: Context, appWidgetManager: AppWidgetManager, appWidgetIds: IntArray) {

23+ for (id in appWidgetIds) render(context, appWidgetManager, id)

24+ }

25+

26+ companion object {

27+ /** Re-render all widgets and tell them to reload their list data (call after the

28+ * recent-session list changes). No-op when no widget is placed. */

29+ fun refresh(context: Context) {

30+ val manager = AppWidgetManager.getInstance(context) ?: return

31+ val ids = runCatching {

32+ manager.getAppWidgetIds(ComponentName(context, SessionsWidgetProvider::class.java))

33+ }.getOrNull() ?: return

34+ if (ids.isEmpty()) return

35+ for (id in ids) render(context, manager, id)

36+ manager.notifyAppWidgetViewDataChanged(ids, R.id.widget_list)

37+ }

38+

39+ private fun render(context: Context, manager: AppWidgetManager, widgetId: Int) {

40+ val views = RemoteViews(context.packageName, R.layout.widget_sessions)

41+

42+ // Header: title opens the app; the "+" starts a new session.

43+ views.setOnClickPendingIntent(

44+ R.id.widget_title,

45+ activityPending(context, requestCode = 2, Intent(context, MainActivity::class.java)),

46+ )

47+ views.setOnClickPendingIntent(

48+ R.id.widget_new,

49+ activityPending(

50+ context, requestCode = 1,

51+ Intent(context, MainActivity::class.java).apply { action = MainActivity.ACTION_NEW_SESSION },

52+ ),

53+ )

54+

55+ // Bind the list to the RemoteViewsService. A unique data Uri per widget id keeps

56+ // the framework from reusing one adapter across widgets.

57+ val serviceIntent = Intent(context, SessionsWidgetService::class.java).apply {

58+ putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId)

59+ data = Uri.parse(toUri(Intent.URI_INTENT_SCHEME))

60+ }

61+ views.setRemoteAdapter(R.id.widget_list, serviceIntent)

62+ views.setEmptyView(R.id.widget_list, R.id.widget_empty)

63+

64+ // Template intent filled in per row (fill-in carries EXTRA_SESSION_ID). Must be

65+ // mutable on Android 12+ so the row's fill-in can be merged.

66+ val templateIntent = Intent(context, MainActivity::class.java).apply { action = Intent.ACTION_VIEW }

67+ val mutableFlag = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_MUTABLE else 0

68+ val templatePending = PendingIntent.getActivity(

69+ context, 3, templateIntent, PendingIntent.FLAG_UPDATE_CURRENT or mutableFlag,

70+ )

71+ views.setPendingIntentTemplate(R.id.widget_list, templatePending)

72+

73+ manager.updateAppWidget(widgetId, views)

74+ manager.notifyAppWidgetViewDataChanged(widgetId, R.id.widget_list)

75+ }

76+

77+ private fun activityPending(context: Context, requestCode: Int, intent: Intent): PendingIntent =

78+ PendingIntent.getActivity(

79+ context, requestCode, intent,

80+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

81+ )

82+ }

83+}

app/src/main/java/soy/iko/opencode/platform/SessionsWidgetService.ktnew file+72

@@ -0,0 +1,72 @@

1+package soy.iko.opencode.platform

2+

3+import android.content.Context

4+import android.content.Intent

5+import android.widget.RemoteViews

6+import android.widget.RemoteViewsService

7+import soy.iko.opencode.MainActivity

8+import soy.iko.opencode.R

9+import soy.iko.opencode.data.repo.RecentSession

10+import soy.iko.opencode.data.repo.RecentSessionsStore

11+import soy.iko.opencode.notification.NotificationActionReceiver

12+import java.security.MessageDigest

13+

14+/** Serves the list rows for [SessionsWidgetProvider] from [RecentSessionsStore]. */

15+class SessionsWidgetService : RemoteViewsService() {

16+ override fun onGetViewFactory(intent: Intent): RemoteViewsFactory =

17+ SessionsWidgetFactory(applicationContext)

18+}

19+

20+private class SessionsWidgetFactory(private val context: Context) : RemoteViewsService.RemoteViewsFactory {

21+

22+ private var items: List<RecentSession> = emptyList()

23+

24+ override fun onCreate() { items = RecentSessionsStore.read(context) }

25+

26+ // Re-read from disk whenever the app signals the data changed (notifyAppWidgetViewDataChanged).

27+ override fun onDataSetChanged() { items = RecentSessionsStore.read(context) }

28+

29+ override fun onDestroy() { items = emptyList() }

30+

31+ override fun getCount(): Int = items.size

32+

33+ override fun getViewAt(position: Int): RemoteViews {

34+ val row = RemoteViews(context.packageName, R.layout.widget_session_item)

35+ val session = items.getOrNull(position) ?: return row

36+ row.setTextViewText(R.id.widget_item_title, session.title.ifBlank { context.getString(R.string.session) })

37+ // Fill-in intent merged into the list's template: carries the session id the app opens,

38+ // plus the profile id of the server that ran the session so it opens under THAT server

39+ // even after the user has switched connections — mirrors the notification action path.

40+ val fillIn = Intent().putExtra(MainActivity.EXTRA_SESSION_ID, session.id)

41+ if (session.profileId.isNotBlank()) {

42+ fillIn.putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, session.profileId)

43+ }

44+ row.setOnClickFillInIntent(R.id.widget_item_root, fillIn)

45+ return row

46+ }

47+

48+ override fun getLoadingView(): RemoteViews? = null

49+ override fun getViewTypeCount(): Int = 1

50+ // Derive a stable id from the session id via a collision-resistant SHA-256 digest

51+ // (truncated to 63 bits) rather than String.hashCode(), whose 32-bit output can

52+ // collide for distinct session ids — with hasStableIds=true the RemoteViews framework

53+ // would then mis-recycle two sessions' row content. Mirrors SessionNotifications.notifId.

54+ // Falls back to the position for an out-of-range index.

55+ override fun getItemId(position: Int): Long {

56+ val id = items.getOrNull(position)?.id ?: return position.toLong()

57+ val digest = runCatching { MessageDigest.getInstance("SHA-256").digest(id.toByteArray()) }

58+ .getOrNull() ?: return position.toLong()

59+ // Take the first 8 bytes, mask to 63 bits (always positive) to fit a Long id.

60+ // The shl/or/and infix precedence requires parenthesizing each shift individually

61+ // (see SessionNotifications.notifId for the rationale).

62+ return (((digest[0].toLong() and 0xFF) shl 56) or

63+ ((digest[1].toLong() and 0xFF) shl 48) or

64+ ((digest[2].toLong() and 0xFF) shl 40) or

65+ ((digest[3].toLong() and 0xFF) shl 32) or

66+ ((digest[4].toLong() and 0xFF) shl 24) or

67+ ((digest[5].toLong() and 0xFF) shl 16) or

68+ ((digest[6].toLong() and 0xFF) shl 8) or

69+ (digest[7].toLong() and 0xFF)).and(0x7FFFFFFFFFFFFFFF)

70+ }

71+ override fun hasStableIds(): Boolean = true

72+}

app/src/main/java/soy/iko/opencode/ui/AppLockGate.ktnew file+312

@@ -0,0 +1,312 @@

1+package soy.iko.opencode.ui

2+

3+import android.content.Context

4+import android.content.ContextWrapper

5+import android.os.Build

6+import androidx.biometric.BiometricManager

7+import androidx.biometric.BiometricPrompt

8+import androidx.compose.foundation.clickable

9+import androidx.compose.foundation.layout.Arrangement

10+import androidx.compose.foundation.layout.Column

11+import androidx.compose.foundation.layout.Spacer

12+import androidx.compose.foundation.layout.fillMaxSize

13+import androidx.compose.foundation.layout.padding

14+import androidx.compose.foundation.layout.size

15+import androidx.compose.material.icons.Icons

16+import androidx.compose.material.icons.filled.Fingerprint

17+import androidx.compose.material.icons.filled.Lock

18+import androidx.compose.material3.Button

19+import androidx.compose.material3.Icon

20+import androidx.compose.material3.MaterialTheme

21+import androidx.compose.material3.Surface

22+import androidx.compose.material3.Text

23+import androidx.compose.runtime.Composable

24+import androidx.compose.runtime.DisposableEffect

25+import androidx.compose.runtime.LaunchedEffect

26+import androidx.compose.runtime.getValue

27+import androidx.compose.runtime.mutableStateOf

28+import androidx.compose.runtime.remember

29+import androidx.compose.runtime.saveable.rememberSaveable

30+import androidx.compose.runtime.saveable.rememberSaveableStateHolder

31+import androidx.compose.runtime.setValue

32+import androidx.compose.ui.Alignment

33+import androidx.compose.ui.Modifier

34+import androidx.compose.ui.platform.LocalContext

35+import androidx.compose.ui.res.stringResource

36+import androidx.compose.ui.semantics.LiveRegionMode

37+import androidx.compose.ui.semantics.Role

38+import androidx.compose.ui.semantics.liveRegion

39+import androidx.compose.ui.semantics.semantics

40+import androidx.compose.ui.unit.dp

41+import androidx.core.content.ContextCompat

42+import androidx.fragment.app.FragmentActivity

43+import androidx.lifecycle.Lifecycle

44+import androidx.lifecycle.LifecycleEventObserver

45+import androidx.lifecycle.compose.LocalLifecycleOwner

46+import soy.iko.opencode.R

47+import soy.iko.opencode.ui.components.LoadingSize

48+import soy.iko.opencode.ui.components.LoadingSpinner

49+

50+/**

51+ * The set of authenticators the app lock accepts. Device credential (PIN/pattern/password)

52+ * can only be combined with a biometric class from Android 11 (API 30) on; on 26–29 we ask

53+ * for a strong biometric alone, so the lock is only offered (in Settings) when one is enrolled.

54+ */

55+private val lockAuthenticators: Int

56+ get() = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {

57+ BiometricManager.Authenticators.BIOMETRIC_STRONG or BiometricManager.Authenticators.DEVICE_CREDENTIAL

58+ } else {

59+ BiometricManager.Authenticators.BIOMETRIC_STRONG

60+ }

61+

62+/** Whether device authentication is currently possible, so Settings can gate the toggle. */

63+fun canAuthenticateForAppLock(context: Context): Boolean =

64+ BiometricManager.from(context).canAuthenticate(lockAuthenticators) == BiometricManager.BIOMETRIC_SUCCESS

65+

66+/**

67+ * Whether app-lock auth is *permanently* impossible on this device (no hardware, nothing

68+ * enrolled, or a pending security update). Only these states may fail the gate open. A transient

69+ * error (sensor busy / temporarily unavailable) must NOT fail open — that would unlock the app on

70+ * a momentary glitch — so the gate stays locked and lets the user retry.

71+ */

72+private fun appLockPermanentlyUnavailable(context: Context): Boolean =

73+ when (BiometricManager.from(context).canAuthenticate(lockAuthenticators)) {

74+ BiometricManager.BIOMETRIC_ERROR_NONE_ENROLLED,

75+ BiometricManager.BIOMETRIC_ERROR_NO_HARDWARE,

76+ BiometricManager.BIOMETRIC_ERROR_SECURITY_UPDATE_REQUIRED -> true

77+ else -> false

78+ }

79+

80+/** Unwrap a [FragmentActivity] from a (possibly wrapped) Compose [Context]. */

81+private fun Context.findFragmentActivity(): FragmentActivity? {

82+ var ctx: Context? = this

83+ while (ctx is ContextWrapper) {

84+ if (ctx is FragmentActivity) return ctx

85+ ctx = ctx.baseContext

86+ }

87+ return null

88+}

89+

90+/**

91+ * Gates [content] behind device authentication when [enabled]. The content stays composed

92+ * underneath an opaque lock overlay (so navigation state survives a re-lock), and the app

93+ * re-locks whenever it's sent to the background. If no [FragmentActivity] is available or the

94+ * device can't authenticate, the gate is a no-op — the setting is only offered when

95+ * [canAuthenticateForAppLock] is true, so this fallback just prevents a hard lock-out.

96+ */

97+@Composable

98+fun AppLockGate(enabled: Boolean, reLockDelaySeconds: Int = 0, content: @Composable () -> Unit) {

99+ if (!enabled) {

100+ content()

101+ return

102+ }

103+ val context = LocalContext.current

104+ val activity = remember(context) { context.findFragmentActivity() }

105+ if (activity == null) {

106+ content()

107+ return

108+ }

109+ // Fail open only if device authentication is *permanently* impossible (e.g. the user enabled

110+ // app-lock while a credential was enrolled and later removed their PIN/biometric): authenticate()

111+ // would otherwise always hit onAuthenticationError and strand the user on a permanent lockout.

112+ // A transient authenticator error keeps the lock up (the user retries) rather than unlocking.

113+ if (appLockPermanentlyUnavailable(context)) {

114+ // Surface a one-time warning so the user knows their app-lock setting is on but isn't

115+ // actually protecting the app — without this they'd have to discover it by opening

116+ // Settings and seeing the "unavailable" state. A Toast (not a snackbar) because the

117+ // gate sits above the Scaffold/SnackbarHost; the warning is informational, not an action.

118+ LaunchedEffect(Unit) {

119+ android.widget.Toast.makeText(

120+ context,

121+ context.getString(R.string.app_lock_disabled_warning),

122+ android.widget.Toast.LENGTH_LONG,

123+ ).show()

124+ }

125+ content()

126+ return

127+ }

128+

129+ // Deliberately NOT rememberSaveable: the unlocked flag must never be persisted into the

130+ // saved-instance-state Bundle. On API 26-27 onSaveInstanceState runs *before* onStop, so a

131+ // saveable `true` would be written to the Bundle before ON_STOP resets it; after a background

132+ // process-kill and restore the app would come back unlocked with no biometric prompt — an

133+ // app-lock bypass. Rotation is handled by the activity's configChanges (no recreation), so a

134+ // plain remember still avoids re-prompting on rotation while re-locking on real recreation.

135+ var unlocked by remember { mutableStateOf(false) }

136+ // Wall-clock time of the most recent ON_STOP. Used with [reLockDelaySeconds] so a quick

137+ // app-switch (e.g. glancing at another app for a few seconds) doesn't re-prompt — the most

138+ // common reason users disable biometric locks. A killed process resets unlocked anyway, so the

139+ // grace period only governs the in-memory re-lock decision across a surviving background stint.

140+ //

141+ // Plain remember (not rememberSaveable), matching `unlocked` above: the grace check gates on

142+ // `unlocked`, which is non-saveable, so persisting only the stop timestamp through the Bundle

143+ // is inconsistent — on a config change NOT in the manifest's configChanges (e.g. a locale

144+ // change) `unlocked` resets to false while `lastStopTimeMs` would survive, and the grace

145+ // check `if (unlocked && ...)` short-circuits to false anyway, re-prompting the user despite

146+ // having unlocked seconds ago. Resetting both together on recreation is consistent: the new

147+ // DisposableEffect observer gets ON_START synchronously, sees lastStopTimeMs == 0, and prompts

148+ // cleanly (a recreation mid-grace re-prompts, which is the safe default for an app lock).

149+ val lastStopTimeMs = remember { longArrayOf(0L) }

150+ val reLockDelayMs = reLockDelaySeconds * 1000L

151+

152+ val title = stringResource(R.string.app_lock_prompt_title)

153+ val subtitle = stringResource(R.string.app_lock_prompt_subtitle)

154+

155+ // Track an in-flight prompt so a recomposition (or the retry button) can't stack two

156+ // BiometricPrompts, which throws.

157+ var authInFlight by remember { mutableStateOf(false) }

158+ // Monotonic id for the current prompt. The system dismisses an in-flight BiometricPrompt when

159+ // the app backgrounds and posts its onAuthenticationError asynchronously; without this, that

160+ // stale error could land after ON_START already started a NEW prompt and clear authInFlight

161+ // mid-prompt — letting a recomposition or the "Unlock" button (enabled = !authInFlight) stack

162+ // a second prompt. Each prompt captures its id and only mutates state while it's still current.

163+ val promptId = remember { intArrayOf(0) }

164+

165+ fun authenticate() {

166+ if (authInFlight || unlocked) return

167+ authInFlight = true

168+ val myPrompt = ++promptId[0]

169+ val executor = ContextCompat.getMainExecutor(activity)

170+ val callback = object : BiometricPrompt.AuthenticationCallback() {

171+ override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {

172+ if (myPrompt != promptId[0]) return

173+ authInFlight = false

174+ unlocked = true

175+ }

176+

177+ override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {

178+ // User cancelled / lockout / hardware error: stay locked and let them retry

179+ // via the button rather than looping the system prompt. Ignore a stale error

180+ // from a prompt already superseded by a newer one (see promptId above).

181+ if (myPrompt != promptId[0]) return

182+ authInFlight = false

183+ }

184+

185+ override fun onAuthenticationFailed() {

186+ // A single non-matching attempt; the system UI lets the user try again.

187+ }

188+ }

189+ val info = BiometricPrompt.PromptInfo.Builder()

190+ .setTitle(title)

191+ .setSubtitle(subtitle)

192+ .setAllowedAuthenticators(lockAuthenticators)

193+ .build()

194+ runCatching { BiometricPrompt(activity, executor, callback).authenticate(info) }

195+ .onFailure { if (myPrompt == promptId[0]) authInFlight = false }

196+ }

197+

198+ // Re-lock when the app is backgrounded, and re-prompt when it returns to the foreground.

199+ // The re-prompt fires on ON_START rather than by keying an effect on `unlocked`: ON_STOP

200+ // already cleared `unlocked` while backgrounded, so an effect keyed on it would see no

201+ // change on return and never re-fire, stranding the user on the manual "Unlock" button.

202+ // addObserver also delivers the current state's ON_START to a freshly-added observer, so

203+ // this covers the initial prompt on first show too; the authInFlight/unlocked guards in

204+ // authenticate() make the overlapping triggers safe.

205+ val lifecycleOwner = LocalLifecycleOwner.current

206+ DisposableEffect(lifecycleOwner) {

207+ val observer = LifecycleEventObserver { _, event ->

208+ when (event) {

209+ Lifecycle.Event.ON_STOP -> {

210+ // Record the stop time but DON'T clear unlocked yet — the re-lock decision is

211+ // made on the next ON_START, so a brief background stint under the grace period

212+ // returns the user straight to their session without a re-prompt. authInFlight

213+ // is still cleared because the system dismisses an in-flight prompt on background.

214+ lastStopTimeMs[0] = System.currentTimeMillis()

215+ authInFlight = false

216+ }

217+ Lifecycle.Event.ON_START -> {

218+ // Only re-lock (and re-prompt) if more than the grace period elapsed since the

219+ // last ON_STOP, or the app is freshly starting (lastStopTimeMs == 0).

220+ val elapsed = System.currentTimeMillis() - lastStopTimeMs[0]

221+ if (unlocked && lastStopTimeMs[0] != 0L && elapsed < reLockDelayMs) {

222+ // Within the grace period — stay unlocked, no re-prompt.

223+ } else {

224+ unlocked = false

225+ authenticate()

226+ }

227+ }

228+ else -> {}

229+ }

230+ }

231+ lifecycleOwner.lifecycle.addObserver(observer)

232+ onDispose { lifecycleOwner.lifecycle.removeObserver(observer) }

233+ }

234+

235+ // Compose content ONLY while unlocked. Drawing the lock as an overlay *over* a still-composed

236+ // content() cannot cover a Dialog / ModalBottomSheet / DropdownMenu / Popup: those render in

237+ // separate windows z-ordered above the Activity content, so an open permission dialog or picker

238+ // sheet would stay visible and interactive above the lock — an authentication bypass. Not

239+ // composing content while locked removes those sub-windows entirely. The SaveableStateHolder

240+ // preserves navigation/scroll/input state across the re-lock so unlocking returns the user where

241+ // they were, replacing the previous "keep composed underneath" approach.

242+ val stateHolder = rememberSaveableStateHolder()

243+ if (unlocked) {

244+ stateHolder.SaveableStateProvider(APP_LOCK_CONTENT_KEY) { content() }

245+ } else {

246+ // A Fingerprint glyph hints at the primary unlock method when a biometric is enrolled;

247+ // fall back to the generic lock on credential-only setups. Computed once: enrollment

248+ // doesn't change while the gate is shown, and re-prompting on each frame is wasteful.

249+ val biometricAvailable = remember(context) {

250+ BiometricManager.from(context)

251+ .canAuthenticate(BiometricManager.Authenticators.BIOMETRIC_STRONG) ==

252+ BiometricManager.BIOMETRIC_SUCCESS

253+ }

254+ val unlockLabel = stringResource(R.string.app_unlock)

255+ Surface(

256+ modifier = Modifier.fillMaxSize(),

257+ color = MaterialTheme.colorScheme.background,

258+ ) {

259+ // The whole surface is tappable to re-trigger the prompt (in addition to the button),

260+ // so a user who dismissed the system prompt can retry by tapping anywhere — not just

261+ // by finding the Unlock button.

262+ Column(

263+ modifier = Modifier

264+ .fillMaxSize()

265+ .clickable(

266+ enabled = !authInFlight,

267+ role = Role.Button,

268+ onClickLabel = unlockLabel,

269+ ) { authenticate() }

270+ .padding(32.dp),

271+ horizontalAlignment = Alignment.CenterHorizontally,

272+ verticalArrangement = Arrangement.Center,

273+ ) {

274+ Icon(

275+ if (biometricAvailable) Icons.Filled.Fingerprint else Icons.Filled.Lock,

276+ contentDescription = null,

277+ modifier = Modifier.size(56.dp),

278+ tint = MaterialTheme.colorScheme.primary,

279+ )

280+ Text(

281+ stringResource(R.string.app_locked),

282+ style = MaterialTheme.typography.titleMedium,

283+ modifier = Modifier

284+ .padding(top = 16.dp)

285+ .semantics { liveRegion = LiveRegionMode.Polite },

286+ )

287+ Text(

288+ stringResource(R.string.app_locked_hint),

289+ style = MaterialTheme.typography.bodyMedium,

290+ color = MaterialTheme.colorScheme.onSurfaceVariant,

291+ modifier = Modifier.padding(top = 4.dp),

292+ )

293+ Button(

294+ onClick = { authenticate() },

295+ enabled = !authInFlight,

296+ modifier = Modifier.padding(top = 24.dp),

297+ ) {

298+ if (authInFlight) {

299+ LoadingSpinner(

300+ size = LoadingSize.Small,

301+ color = MaterialTheme.colorScheme.primary,

302+ )

303+ Spacer(Modifier.size(8.dp))

304+ }

305+ Text(unlockLabel)

306+ }

307+ }

308+ }

309+ }

310+}

311+

312+private const val APP_LOCK_CONTENT_KEY = "app_lock_content"

app/src/main/java/soy/iko/opencode/ui/OpencodeApp.kt+607−90

@@ -1,124 +1,641 @@

11package soy.iko.opencode.ui

22

3−import androidx.activity.compose.BackHandler

4−import androidx.compose.animation.AnimatedContent

3+import androidx.compose.animation.EnterTransition

4+import androidx.compose.animation.ExitTransition

5+import androidx.compose.animation.core.tween

6+import androidx.compose.animation.fadeIn

7+import androidx.compose.animation.fadeOut

58import androidx.compose.animation.slideInHorizontally

69import androidx.compose.animation.slideOutHorizontally

7−import androidx.compose.animation.togetherWith

10+import androidx.compose.foundation.layout.Box

11+import androidx.compose.foundation.layout.BoxWithConstraints

12+import androidx.compose.foundation.layout.Row

13+import androidx.compose.foundation.layout.fillMaxHeight

814import androidx.compose.foundation.layout.fillMaxSize

9−import androidx.compose.foundation.layout.padding

10−import androidx.compose.material3.AlertDialog

11−import androidx.compose.material3.Scaffold

12−import androidx.compose.material3.SnackbarDuration

13−import androidx.compose.material3.SnackbarHost

14−import androidx.compose.material3.SnackbarHostState

15−import androidx.compose.material3.Text

16−import androidx.compose.material3.TextButton

1715import androidx.compose.runtime.Composable

16+import androidx.compose.runtime.CompositionLocalProvider

1817import androidx.compose.runtime.LaunchedEffect

1918import androidx.compose.runtime.getValue

2019import androidx.compose.runtime.mutableStateOf

2120import androidx.compose.runtime.remember

21+import androidx.compose.runtime.rememberCoroutineScope

22+import androidx.compose.runtime.saveable.rememberSaveable

2223import androidx.compose.runtime.setValue

2324import androidx.compose.ui.Modifier

24−import soy.iko.opencode.core.Event

25−import soy.iko.opencode.core.Screen

26−import soy.iko.opencode.core.UiState

27−import soy.iko.opencode.ui.screens.ChatScreen

28−import soy.iko.opencode.ui.screens.ConnectScreen

29−import soy.iko.opencode.ui.screens.SessionsScreen

25+import androidx.compose.ui.input.key.Key

26+import androidx.compose.ui.input.key.KeyEventType

27+import androidx.compose.ui.input.key.isCtrlPressed

28+import androidx.compose.ui.input.key.isAltPressed

29+import androidx.compose.ui.input.key.key

30+import androidx.compose.ui.input.key.onPreviewKeyEvent

31+import androidx.compose.ui.input.key.type

32+import androidx.compose.ui.platform.LocalContext

33+import androidx.compose.ui.platform.LocalDensity

34+import androidx.compose.ui.unit.dp

35+import androidx.compose.ui.unit.LayoutDirection

36+import androidx.compose.ui.platform.LocalLayoutDirection

37+import androidx.navigation.NavType

38+import androidx.navigation.NavGraph.Companion.findStartDestination

39+import androidx.navigation.compose.NavHost

40+import androidx.navigation.compose.composable

41+import androidx.navigation.compose.currentBackStackEntryAsState

42+import androidx.navigation.compose.rememberNavController

43+import androidx.navigation.navArgument

44+import androidx.lifecycle.compose.collectAsStateWithLifecycle

45+import kotlinx.coroutines.launch

46+import soy.iko.opencode.di.AppContainer

47+import soy.iko.opencode.data.network.NetworkConfig

48+import soy.iko.opencode.ui.chat.ChatScreen

49+import soy.iko.opencode.ui.file.FileBrowserScreen

50+import soy.iko.opencode.ui.file.FileViewScreen

51+import soy.iko.opencode.ui.file.TwoPaneFileBrowser

52+import soy.iko.opencode.ui.server.ServerEditScreen

53+import soy.iko.opencode.ui.server.ServerListScreen

54+import soy.iko.opencode.ui.server.ServerSettingsScreen

55+import soy.iko.opencode.ui.search.GlobalSearchScreen

56+import androidx.compose.ui.platform.LocalHapticFeedback

57+import soy.iko.opencode.ui.components.LargeScreenNavRail

58+import soy.iko.opencode.ui.components.CompactNavBar

59+import soy.iko.opencode.ui.components.LocalChatTextScale

60+import soy.iko.opencode.ui.components.LocalCodeWrap

61+import soy.iko.opencode.ui.components.LocalReducedMotion

62+import soy.iko.opencode.ui.components.isReducedMotion

63+import soy.iko.opencode.ui.components.rememberGatedHaptics

64+import soy.iko.opencode.ui.session.SessionListScreen

65+import soy.iko.opencode.ui.session.TwoPaneSessionChat

66+import soy.iko.opencode.ui.settings.DiagnosticsScreen

67+import soy.iko.opencode.ui.settings.SettingsScreen

68+import soy.iko.opencode.ui.usage.UsageScreen

69+import soy.iko.opencode.ui.mcp.McpScreen

70+import soy.iko.opencode.util.findActivity

71+import soy.iko.opencode.util.runCatchingCancellable

3072

3173@Composable

32−fun OpencodeApp(state: UiState, dispatch: (Event) -> Unit) {

33− val snackbar = remember { SnackbarHostState() }

34− var showStopConfirm by remember { mutableStateOf(false) }

35− var showDisconnectConfirm by remember { mutableStateOf(false) }

36−

37− LaunchedEffect(state.error) {

38− state.error?.let {

39− snackbar.showSnackbar(

40− message = it,

41− actionLabel = "Dismiss",

42− duration = SnackbarDuration.Short,

43− )

44− // Always clear the error from state after showing.

45− dispatch(Event.DismissError)

74+fun OpencodeApp(container: AppContainer) {

75+ val navController = rememberNavController()

76+ val scope = rememberCoroutineScope()

77+ val pendingShare by container.pendingShare.collectAsStateWithLifecycle()

78+ val pendingSharedMedia by container.pendingSharedMedia.collectAsStateWithLifecycle()

79+ val pendingOpenSession by container.pendingOpenSession.collectAsStateWithLifecycle()

80+ val pendingNewSession by container.pendingNewSession.collectAsStateWithLifecycle()

81+ val pendingOpenFile by container.pendingOpenFile.collectAsStateWithLifecycle()

82+ val pendingDiagnostics by container.pendingDiagnostics.collectAsStateWithLifecycle()

83+ val connection by container.activeConnection.collectAsStateWithLifecycle()

84+ // Chat presentation preferences, provided to the whole nav graph so the markdown/code

85+ // renderers honor the user's text-size and code-wrap choices everywhere.

86+ val chatTextScale by container.settingsStore.chatTextScale.collectAsStateWithLifecycle(initialValue = 1f)

87+ val codeWrap by container.settingsStore.codeWrap.collectAsStateWithLifecycle(initialValue = false)

88+ // Haptics gating: collected once at the root so the in-app toggle can disable all

89+ // performHapticFeedback calls everywhere via a single CompositionLocalProvider, instead

90+ // of each call site needing to read the setting. Defaults true (the prior behavior) so

91+ // the brief window before DataStore loads still haptics as before.

92+ val hapticsEnabled by container.settingsStore.hapticsEnabled.collectAsStateWithLifecycle(initialValue = true)

93+

94+ // The foreground service that holds priority while any run is active is driven from the

95+ // process-lived AppContainer scope (see AppContainer.observeRunForegroundService), not

96+ // from here — a composition-scoped collector pauses while backgrounded, which is exactly

97+ // when a run started via the notification reply needs the service to start.

98+

99+ // When text is shared into the app, surface the session list so the user can pick

100+ // (or create) a conversation to drop it into. The chosen session's draft is set

101+ // in [onOpenSession] below. Keyed on `connection` too so a share that arrives

102+ // before auto-reconnect completes is retried once the connection is established.

103+ // Track the last-handled share payloads (there's no share nonce on the container) so a

104+ // *new* share arriving while already connected — a warm start where onNewIntent re-fires

105+ // setPendingShare under an unchanged connection id — still navigates, while a re-trigger

106+ // carrying no new share (a bare server switch, which routes through a null connection, or

107+ // a share the user already navigated for) leaves them where they are.

108+ //

109+ // Reset the remembered media when the pending list is drained (the chosen ChatScreen

110+ // consumes it via consumePendingSharedMedia). Without this, re-sharing the *same* images

111+ // after consumption compares equal structurally ([A,B] == [A,B]) and would be treated as

112+ // "already handled", silently skipping the session-list navigation the second time.

113+ //

114+ // rememberSaveable (not remember) so a process-kill restore doesn't reset the dedup

115+ // state and re-navigate to SESSIONS for a share the user already handled before the kill.

116+ var handledShareText by rememberSaveable { mutableStateOf<String?>(null) }

117+ var handledSharedMedia by rememberSaveable { mutableStateOf<List<String>>(emptyList()) }

118+ LaunchedEffect(pendingShare, pendingSharedMedia, connection) {

119+ // Reset the remembered handled state for each channel independently as it drains,

120+ // so re-sharing the same payload after consumption is still recognized as new. A

121+ // joint reset (only when both are empty) would drop a text-only re-share that

122+ // follows a text+media share of the same text: the text channel matches its

123+ // remembered value while the media channel is empty (not "new"), so neither clause

124+ // fires and the share is silently swallowed.

125+ if (pendingShare == null) handledShareText = null

126+ if (pendingSharedMedia.isEmpty()) handledSharedMedia = emptyList()

127+ if (pendingShare == null && pendingSharedMedia.isEmpty()) return@LaunchedEffect

128+ if (connection == null) return@LaunchedEffect

129+ val newShare = (pendingShare != null && pendingShare != handledShareText) ||

130+ (pendingSharedMedia.isNotEmpty() && pendingSharedMedia != handledSharedMedia)

131+ if (!newShare) return@LaunchedEffect

132+ handledShareText = pendingShare

133+ handledSharedMedia = pendingSharedMedia

134+ if (!navController.popBackStack(Routes.SESSIONS, inclusive = false)) {

135+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

46136 }

47137 }

48138

49− BackHandler(enabled = state.screen != Screen.Connect) {

50− when (state.screen) {

51− // Leaving mid-generation would silently drop the reply, so confirm first.

52− Screen.Chat -> if (state.generating) showStopConfirm = true else dispatch(Event.NavigateToSessions)

53− // Disconnecting drops the server session, so guard the back button.

54− Screen.Sessions -> showDisconnectConfirm = true

55− Screen.Connect -> Unit

139+ // Crash-relaunch prompt: navigate to the Diagnostics screen when the user taps

140+ // "View report" on the cold-start crash dialog. Doesn't require a connection.

141+ LaunchedEffect(pendingDiagnostics) {

142+ if (!pendingDiagnostics) return@LaunchedEffect

143+ container.consumePendingDiagnostics()

144+ navController.navigate(Routes.DIAGNOSTICS) { launchSingleTop = true }

145+ }

146+

147+ // "New session" from a launcher shortcut / QS tile: once connected, create a fresh

148+ // session and open it. The pending counter is consumed only *after* createSession

149+ // succeeds, so a transient failure leaves the request pending to retry (on the next

150+ // connection change or a re-tap that increments the counter) instead of silently

151+ // dropping the tap.

152+ LaunchedEffect(pendingNewSession, connection) {

153+ if (pendingNewSession == 0) return@LaunchedEffect

154+ val conn = connection ?: return@LaunchedEffect

155+ val session = runCatchingCancellable { conn.repository.createSession() }.getOrNull()

156+ ?: return@LaunchedEffect

157+ if (!container.consumePendingNewSession()) return@LaunchedEffect

158+ // The file browser/viewer "Open in chat" action queues an @path reference as a

159+ // pending share alongside the new-session request. Unlike onOpenSession (which

160+ // injects it there), this effect creates the session directly and navigates to it

161+ // — so consume the share here and seed the new session's draft, otherwise the

162+ // text stays queued and silently misfires into the next session the user opens

163+ // from the list. Mirror the onOpenSession pattern: set in-memory synchronously

164+ // so ChatScreen sees it on first composition, then persist to disk in the back.

165+ container.consumePendingShare()?.let { shareText ->

166+ container.draftStore.setImmediate(session.id, shareText)

167+ scope.launch { runCatchingCancellable { container.draftStore.set(session.id, shareText) } }

56168 }

169+ if (!navController.popBackStack(Routes.SESSIONS, inclusive = false)) {

170+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

171+ }

172+ navController.navigate(Routes.chat(session.id)) { launchSingleTop = true }

57173 }

58174

59− if (showStopConfirm) {

60− AlertDialog(

61− onDismissRequest = { showStopConfirm = false },

62− title = { Text("Stop generation?") },

63− text = { Text("Leaving will stop the current generation.") },

64− confirmButton = {

65− TextButton(onClick = {

66− showStopConfirm = false

67− dispatch(Event.CancelGeneration)

68− dispatch(Event.NavigateToSessions)

69− }) {

70− Text("Stop and leave")

71− }

72− },

73− dismissButton = {

74− TextButton(onClick = { showStopConfirm = false }) {

75− Text("Stay")

76− }

77− },

175+ // The chat text-size preference multiplies on top of the OS font scale (sp already

176+ // honors the system setting), so a large system size × large app size can reach ~2×

177+ // and break tight layouts. Clamp the provided app scale so the product with the OS

178+ // fontScale never exceeds NetworkConfig.maxCombinedFontScale, while never scaling

179+ // below the user's chosen value's intent (floor of 1× app scale is preserved when the

180+ // system size alone already exceeds the cap).

181+ val systemFontScale = LocalDensity.current.fontScale

182+ val clampedChatTextScale = if (systemFontScale <= 0f) {

183+ chatTextScale

184+ } else {

185+ chatTextScale.coerceAtMost(

186+ (NetworkConfig.maxCombinedFontScale / systemFontScale).coerceAtLeast(1f)

78187 )

79188 }

80189

81− if (showDisconnectConfirm) {

82− AlertDialog(

83− onDismissRequest = { showDisconnectConfirm = false },

84− title = { Text("Disconnect?") },

85− text = { Text("You will be disconnected from the server.") },

86− confirmButton = {

87− TextButton(onClick = {

88− showDisconnectConfirm = false

89− dispatch(Event.NavigateToConnect)

90− }) {

91− Text("Disconnect")

190+ // Capture the reduced-motion preference once (in the composable scope) so the

191+ // non-composable NavHost transition lambdas can use it to skip animations, and provide

192+ // it via LocalReducedMotion so in-composition animations (chat row placement, banners,

193+ // image zoom) honor the same accessibility preference.

194+ val reducedMotion = isReducedMotion()

195+ CompositionLocalProvider(

196+ LocalChatTextScale provides clampedChatTextScale,

197+ LocalCodeWrap provides codeWrap,

198+ LocalReducedMotion provides reducedMotion,

199+ LocalHapticFeedback provides rememberGatedHaptics(hapticsEnabled),

200+ ) {

201+ // Slide direction for push/pop transitions, mirrored in RTL so the animation reads

202+ // naturally instead of "going the wrong way". +1 = LTR (push from right), -1 = RTL.

203+ val slideDir = if (LocalLayoutDirection.current == LayoutDirection.Rtl) -1 else 1

204+ // Adaptive: on wide screens (tablets / unfolded foldables) show the session list and

205+ // the open conversation side by side instead of a single-pane back stack.

206+ // Posture-aware: a foldable in HALF_OPENED (tabletop/book) mode has a hinge across the

207+ // content area — splitting there would place the list/detail boundary on the hinge, which

208+ // is hard to read and interact with. Detect a FoldingFeature and suppress two-pane in

209+ // those postures so the app falls back to a single-pane layout that respects the fold.

210+ val windowContext = LocalContext.current

211+ var foldState by remember { mutableStateOf<androidx.window.layout.FoldingFeature?>(null) }

212+ androidx.compose.runtime.LaunchedEffect(windowContext) {

213+ val activity = windowContext.findActivity()

214+ if (activity != null) {

215+ androidx.window.layout.WindowInfoTracker.getOrCreate(windowContext)

216+ .windowLayoutInfo(activity)

217+ .collect { info ->

218+ foldState = info.displayFeatures

219+ .filterIsInstance<androidx.window.layout.FoldingFeature>()

220+ .firstOrNull()

221+ }

222+ }

223+ }

224+ val isHalfOpened = foldState?.state == androidx.window.layout.FoldingFeature.State.HALF_OPENED

225+ BoxWithConstraints(

226+ modifier = Modifier.onPreviewKeyEvent { ev ->

227+ // Global keyboard shortcuts for hardware-keyboard users (tablets, DeX, Chromebook):

228+ // Ctrl+1..6 switches between top-level destinations. Only fires on KeyDown so a

229+ // held Ctrl doesn't re-trigger on every repeat. Per-screen shortcuts (Ctrl+K palette,

230+ // Esc stop, Ctrl+F find) are handled in each screen's own onPreviewKeyEvent and take

231+ // precedence (they're closer to the focused composable in the tree).

232+ if (ev.type != KeyEventType.KeyDown || !ev.isCtrlPressed) {

233+ // Alt+Left (a familiar desktop "Back" gesture) pops the back stack. Not gated

234+ // on Ctrl so it works as a standalone modifier. Per-screen shortcuts (Esc

235+ // stop, Ctrl+F find, Ctrl+K palette) register their own onPreviewKeyEvent

236+ // closer to the focused composable and consume first, so this only pops when

237+ // nothing nearer handled the key — avoiding conflicts with open dialogs and

238+ // text fields. Esc is deliberately NOT mapped to back here for that reason.

239+ if (ev.type == KeyEventType.KeyDown &&

240+ ev.key == Key.DirectionLeft &&

241+ ev.isAltPressed

242+ ) {

243+ if (navController.previousBackStackEntry != null) {

244+ navController.popBackStack()

245+ return@onPreviewKeyEvent true

246+ }

247+ }

248+ return@onPreviewKeyEvent false

249+ }

250+ val route = when (ev.key) {

251+ Key.NumPad1, Key.One -> Routes.SESSIONS

252+ Key.NumPad2, Key.Two -> Routes.SEARCH

253+ Key.NumPad3, Key.Three -> Routes.FILES

254+ Key.NumPad4, Key.Four -> Routes.USAGE

255+ Key.NumPad5, Key.Five -> Routes.MCP

256+ Key.NumPad6, Key.Six -> Routes.SETTINGS

257+ // Ctrl+7 navigates to the server list (the 7th nav-rail destination).

258+ // Previously Ctrl+1..6 covered the other destinations but Servers was

259+ // missing, an inconsistency since the nav rail shows 7 destinations.

260+ Key.NumPad7, Key.Seven -> Routes.SERVERS

261+ else -> null

262+ }

263+ if (route != null) {

264+ // Servers is reachable even without an active connection (it's the start

265+ // destination and handles the not-connected state); the other routes

266+ // require a connection to be meaningful.

267+ if (route == Routes.SERVERS || connection != null) {

268+ navController.navigate(route) {

269+ popUpTo(navController.graph.findStartDestination().id) { saveState = true }

270+ launchSingleTop = true

271+ restoreState = true

272+ }

273+ true

274+ } else false

275+ } else false

276+ },

277+ ) {

278+ val isTwoPane = maxWidth >= NetworkConfig.twoPaneWidthThresholdDp.dp &&

279+ connection != null &&

280+ !isHalfOpened

281+ // On large screens, surface a navigation rail alongside the content so top-level

282+ // destinations (Sessions, Files, Search, …) are one tap away instead of buried in a

283+ // screen's overflow menu. Mirrors the standard large-screen M3 layout.

284+ val showNavRail = maxWidth >= NetworkConfig.navigationRailThresholdDp.dp

285+ // Observe the current destination reactively so the rail's selected item tracks navigation

286+ // (reading currentDestination once would go stale after the first composition).

287+ val currentEntry by navController.currentBackStackEntryAsState()

288+ val currentRoute = currentEntry?.destination?.route

289+

290+ // Open a session requested by a notification tap or deep link, once connected.

291+ LaunchedEffect(pendingOpenSession, connection, isTwoPane) {

292+ val pending = pendingOpenSession ?: return@LaunchedEffect

293+ if (connection == null) return@LaunchedEffect

294+ // If the notification body-tap carries a profile id from a different server,

295+ // switch to it first so the session opens under the server that ran it, not

296+ // whichever is active. The effect re-runs when connection changes (keyed on it),

297+ // so on the second run the profile matches and the open proceeds.

298+ if (pending.profileId != null && connection?.profile?.id != pending.profileId) {

299+ // If the originating profile no longer exists (e.g. deleted after the

300+ // notification was queued), connectByProfileId returns false: the active

301+ // connection is unchanged and none of this effect's keys change, so it

302+ // would never re-run — the request would sit in _pendingOpenSession

303+ // forever and re-trigger on every later connection change. Consume it so

304+ // the stale request is dropped, mirroring the invalid-deep-link path in

305+ // MainActivity.

306+ if (!container.connectByProfileId(pending.profileId)) {

307+ container.consumePendingOpenSession()

308+ return@LaunchedEffect

309+ }

310+ return@LaunchedEffect // re-run on the new connection

311+ }

312+ // In two-pane mode the detail pane (TwoPaneSessionChat, hosted on the SESSIONS

313+ // route) consumes the request and opens it in the detail pane. But it only

314+ // exists while the NavHost is on SESSIONS, so if the user is currently on

315+ // Files/Settings/FileView bring SESSIONS back to front first — otherwise the

316+ // pending request is never consumed and the session never opens. Don't consume

317+ // here; let TwoPaneSessionChat's effect do it once it's composed.

318+ if (isTwoPane) {

319+ if (!navController.popBackStack(Routes.SESSIONS, inclusive = false)) {

320+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

321+ }

322+ return@LaunchedEffect

323+ }

324+ container.consumePendingOpenSession()

325+ // Ensure SESSIONS sits on the back stack below the chat destination so backing

326+ // out of the chat lands on the session list (not the server list). Bring SESSIONS

327+ // to front (or push it if a cold-start deep link left only SERVERS on the stack),

328+ // then push chat on top — yielding SERVERS -> SESSIONS -> chat.

329+ if (!navController.popBackStack(Routes.SESSIONS, inclusive = false)) {

330+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

331+ }

332+ navController.navigate(Routes.chat(pending.sessionId)) { launchSingleTop = true }

333+ }

334+

335+ // Deep-linked file open (opencode://file/{path}): navigate to the file viewer once a

336+ // connection exists (the viewer fetches content from the server). Path comes pre-validated

337+ // by MainActivity's deep-link guard. In two-pane mode the detail pane (TwoPaneFileBrowser,

338+ // hosted on the FILES route) consumes the request into its detail pane, mirroring how

339+ // session deep links are routed — so don't consume or push the full-screen viewer here.

340+ LaunchedEffect(pendingOpenFile, connection, isTwoPane) {

341+ val path = pendingOpenFile ?: return@LaunchedEffect

342+ if (connection == null) return@LaunchedEffect

343+ if (isTwoPane) {

344+ if (!navController.popBackStack(Routes.FILES, inclusive = false)) {

345+ navController.navigate(Routes.FILES) { launchSingleTop = true }

346+ }

347+ return@LaunchedEffect

348+ }

349+ container.consumePendingOpenFile()

350+ if (!navController.popBackStack(Routes.FILES, inclusive = false)) {

351+ navController.navigate(Routes.FILES) { launchSingleTop = true }

352+ }

353+ navController.navigate(Routes.fileView(path)) { launchSingleTop = true }

354+ }

355+

356+ val navHost = @Composable {

357+ NavHost(

358+ modifier = Modifier.fillMaxSize(),

359+ navController = navController,

360+ startDestination = Routes.SERVERS,

361+ // Motion-aware transitions: respect the user's reduced-motion setting

362+ // (Developer Options → animator scale 0) by skipping animations entirely.

363+ // Per-destination tuning: a chat→chat navigation (switching peer conversations

364+ // within the same surface) crossfades instead of sliding, so it reads as a peer

365+ // switch rather than drilling into a new section. Top-level destinations and

366+ // detail pushes keep the horizontal slide.

367+ enterTransition = {

368+ if (reducedMotion) {

369+ EnterTransition.None

370+ } else if (targetState.destination.route?.startsWith("${Routes.CHAT}/") == true) {

371+ fadeIn(tween(NetworkConfig.motionFadeDurationMs))

372+ } else {

373+ slideInHorizontally(animationSpec = tween(NetworkConfig.motionSlideDurationMs)) { it * slideDir } +

374+ fadeIn(tween(NetworkConfig.motionFadeDurationMs))

92375 }

93376 },

94− dismissButton = {

95− TextButton(onClick = { showDisconnectConfirm = false }) {

96− Text("Cancel")

377+ exitTransition = {

378+ if (reducedMotion) {

379+ ExitTransition.None

380+ } else {

381+ fadeOut(tween(NetworkConfig.motionFadeDurationMs))

97382 }

98383 },

99− )

100− }

101−

102− Scaffold(snackbarHost = { SnackbarHost(snackbar) }) { padding ->

103− AnimatedContent(

104− targetState = state.screen,

105− modifier = Modifier.fillMaxSize().padding(padding),

106− transitionSpec = {

107− // Compare screen ordinals to decide slide direction: forward navigation

108− // (Connect → Sessions → Chat) slides in from the right, back slides from the left.

109− if (targetState.ordinal > initialState.ordinal) {

110− slideInHorizontally { it } togetherWith slideOutHorizontally { -it }

384+ popEnterTransition = {

385+ if (reducedMotion) {

386+ EnterTransition.None

111387 } else {

112− slideInHorizontally { -it } togetherWith slideOutHorizontally { it }

388+ fadeIn(tween(NetworkConfig.motionFadeDurationMs))

113389 }

114390 },

115− label = "screen",

116− ) { screen ->

117− when (screen) {

118− Screen.Connect -> ConnectScreen(state, dispatch)

119− Screen.Sessions -> SessionsScreen(state, dispatch)

120− Screen.Chat -> ChatScreen(state, dispatch)

391+ popExitTransition = {

392+ if (reducedMotion) {

393+ ExitTransition.None

394+ } else {

395+ slideOutHorizontally(animationSpec = tween(NetworkConfig.motionSlideDurationMs)) { it * slideDir } +

396+ fadeOut(tween(NetworkConfig.motionFadeDurationMs))

397+ }

398+ },

399+ ) {

400+

401+ composable(Routes.SERVERS) {

402+ ServerListScreen(

403+ container = container,

404+ onConnected = {

405+ // Only leave the server list if we're still on it. A pending deep-link /

406+ // notification open sets activeConnection (which drives the open-session

407+ // effect: SERVERS -> SESSIONS -> chat) *before* autoConnectDone fires this

408+ // callback, so a blind navigate(SESSIONS) here would slam a second SESSIONS

409+ // on top of the chat it just opened, burying it. Order-independent: if the

410+ // deep link already navigated away from SERVERS, this is a no-op.

411+ if (navController.currentDestination?.route == Routes.SERVERS) {

412+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

413+ }

414+ },

415+ onAddProfile = { navController.navigate(Routes.SERVER_EDIT) },

416+ onServerSettings = { id -> navController.navigate(Routes.serverSettings(id)) },

417+ )

418+ }

419+

420+ composable(Routes.SERVER_EDIT) {

421+ ServerEditScreen(

422+ container = container,

423+ onDone = { navController.popBackStack() },

424+ )

425+ }

426+

427+ composable(

428+ route = "${Routes.SERVER_SETTINGS}/{id}",

429+ arguments = listOf(navArgument("id") { type = NavType.StringType }),

430+ ) { entry ->

431+ ServerSettingsScreen(

432+ container = container,

433+ profileId = entry.arguments?.getString("id").orEmpty(),

434+ onDone = { navController.popBackStack() },

435+ )

436+ }

437+

438+ composable(Routes.SESSIONS) {

439+ if (isTwoPane) {

440+ TwoPaneSessionChat(

441+ container = container,

442+ onOpenFiles = { navController.navigate(Routes.FILES) },

443+ onOpenFile = { path -> navController.navigate(Routes.fileView(path)) },

444+ onOpenSettings = { navController.navigate(Routes.SETTINGS) },

445+ onOpenSearch = { navController.navigate(Routes.SEARCH) },

446+ onDisconnect = {

447+ scope.launch { runCatchingCancellable { container.disconnect() } }

448+ navController.popBackStack(Routes.SERVERS, inclusive = false)

449+ },

450+ onAddServer = { navController.navigate(Routes.SERVER_EDIT) },

451+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

452+ )

453+ } else {

454+ SessionListScreen(

455+ container = container,

456+ onOpenSession = { id ->

457+ // Set the draft synchronously in-memory before navigating so the

458+ // ChatScreen sees it on first composition. The async persistence

459+ // to disk happens in the background via draftStore.set.

460+ container.consumePendingShare()?.let { shareText ->

461+ container.draftStore.setImmediate(id, shareText)

462+ scope.launch { runCatchingCancellable { container.draftStore.set(id, shareText) } }

463+ }

464+ navController.navigate(Routes.chat(id))

465+ },

466+ onDisconnect = {

467+ scope.launch { runCatchingCancellable { container.disconnect() } }

468+ navController.popBackStack(Routes.SERVERS, inclusive = false)

469+ },

470+ onOpenFiles = { navController.navigate(Routes.FILES) },

471+ onOpenSettings = { navController.navigate(Routes.SETTINGS) },

472+ onOpenSearch = { navController.navigate(Routes.SEARCH) },

473+ onAddServer = { navController.navigate(Routes.SERVER_EDIT) },

474+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

475+ )

476+ }

477+ }

478+

479+ composable(

480+ route = "${Routes.CHAT}/{sessionId}?focus={focus}",

481+ arguments = listOf(

482+ navArgument("sessionId") { type = NavType.StringType },

483+ navArgument("focus") { type = NavType.StringType; nullable = true; defaultValue = null },

484+ ),

485+ ) { entry ->

486+ ChatScreen(

487+ container = container,

488+ sessionId = entry.arguments?.getString("sessionId").orEmpty(),

489+ focusMessageId = entry.arguments?.getString("focus"),

490+ onBack = { navController.popBackStack() },

491+ onOpenFile = { path -> navController.navigate(Routes.fileView(path)) },

492+ onOpenSession = { id ->

493+ navController.navigate(Routes.chat(id)) {

494+ // Prevent the same chat from being pushed twice when re-tapping a

495+ // session deep link, and keep the back stack bounded when chaining

496+ // chat → linked chat → … (otherwise every hop piles a new entry).

497+ launchSingleTop = true

498+ }

499+ },

500+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

501+ )

502+ }

503+

504+ composable(Routes.FILES) {

505+ if (isTwoPane) {

506+ TwoPaneFileBrowser(

507+ container = container,

508+ onBack = { navController.popBackStack() },

509+ )

510+ } else {

511+ FileBrowserScreen(

512+ container = container,

513+ onOpenFile = { path, line -> navController.navigate(Routes.fileView(path, line)) },

514+ onBack = { navController.popBackStack() },

515+ )

516+ }

517+ }

518+

519+ composable(

520+ route = "${Routes.FILE_VIEW}?path={path}&line={line}",

521+ arguments = listOf(

522+ navArgument("path") { type = NavType.StringType; defaultValue = "" },

523+ navArgument("line") { type = NavType.IntType; defaultValue = -1 },

524+ ),

525+ ) { entry ->

526+ val line = entry.arguments?.getInt("line") ?: -1

527+ FileViewScreen(

528+ container = container,

529+ path = entry.arguments?.getString("path").orEmpty(),

530+ initialLine = line.takeIf { it > 0 },

531+ onBack = { navController.popBackStack() },

532+ )

533+ }

534+

535+ composable(Routes.SETTINGS) {

536+ SettingsScreen(

537+ container = container,

538+ onBack = { navController.popBackStack() },

539+ // Navigate to the server list as a new entry on top of Sessions so the

540+ // user can back out to their conversations. Previously this popped back

541+ // to the root SERVERS destination, which removed Sessions from the stack

542+ // and left the user unable to return to their conversations without

543+ // reconnecting. Pop only Settings, then push SERVERS; back from the

544+ // server list lands on Sessions (the screen the user was on before

545+ // Settings), and connecting pushes a fresh SESSIONS as usual.

546+ onManageServers = {

547+ navController.navigate(Routes.SERVERS) {

548+ popUpTo(Routes.SETTINGS) { inclusive = true }

549+ launchSingleTop = true

550+ }

551+ },

552+ onOpenDiagnostics = { navController.navigate(Routes.DIAGNOSTICS) },

553+ onOpenUsage = { navController.navigate(Routes.USAGE) },

554+ onOpenMcp = { navController.navigate(Routes.MCP) },

555+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

556+ )

557+ }

558+

559+ composable(Routes.DIAGNOSTICS) {

560+ DiagnosticsScreen(onBack = { navController.popBackStack() })

561+ }

562+

563+ composable(Routes.USAGE) {

564+ UsageScreen(

565+ container = container,

566+ onBack = { navController.popBackStack() },

567+ onOpenSession = { id -> navController.navigate(Routes.chat(id)) },

568+ )

569+ }

570+

571+ composable(Routes.MCP) {

572+ McpScreen(container = container, onBack = { navController.popBackStack() })

573+ }

574+

575+ composable(Routes.SEARCH) {

576+ GlobalSearchScreen(

577+ container = container,

578+ onOpenSession = { id, focusMessageId -> navController.navigate(Routes.chat(id, focusMessageId)) },

579+ onBack = { navController.popBackStack() },

580+ )

581+ }

582+ }

583+ }

584+

585+ // Collect unread/run state for nav badges (rail on large screens, bottom bar on

586+ // compact screens), so a user on Files/Settings sees pending activity at a glance.

587+ val unread by container.unread.collectAsStateWithLifecycle()

588+ val anyRunActive by container.anyRunActive.collectAsStateWithLifecycle()

589+ val totalUnread = remember(unread) { unread.values.sum() }

590+

591+ if (showNavRail) {

592+ Row(modifier = Modifier.fillMaxSize()) {

593+ LargeScreenNavRail(

594+ currentRoute = currentRoute,

595+ connected = connection != null,

596+ unreadCount = totalUnread,

597+ runActive = anyRunActive,

598+ // Use the standard M3 nav-bar pattern: popUpTo the start destination

599+ // saving state, and restoreState on re-entry, so switching between

600+ // top-level tabs via the rail preserves each tab's scroll/selection

601+ // state and back always exits cleanly instead of popping through

602+ // every sibling tab the user visited.

603+ onNavigate = { route ->

604+ navController.navigate(route) {

605+ popUpTo(navController.graph.findStartDestination().id) {

606+ saveState = true

607+ }

608+ launchSingleTop = true

609+ restoreState = true

610+ }

611+ },

612+ )

613+ Box(modifier = Modifier.weight(1f).fillMaxHeight()) { navHost() }

614+ }

615+ } else {

616+ // Compact screens: a bottom NavigationBar surfaces the top-level destinations one

617+ // tap away (Sessions/Search/Files/Settings/Servers) instead of buried in each

618+ // screen's overflow menu. The navHost fills the space above the bar; the bar's

619+ // own height is accounted for by the NavigationBar's intrinsic measurement.

620+ androidx.compose.foundation.layout.Column(modifier = Modifier.fillMaxSize()) {

621+ Box(modifier = Modifier.weight(1f).fillMaxHeight()) { navHost() }

622+ CompactNavBar(

623+ currentRoute = currentRoute,

624+ connected = connection != null,

625+ unreadCount = totalUnread,

626+ runActive = anyRunActive,

627+ onNavigate = { route ->

628+ navController.navigate(route) {

629+ popUpTo(navController.graph.findStartDestination().id) {

630+ saveState = true

631+ }

632+ launchSingleTop = true

633+ restoreState = true

634+ }

635+ },

636+ )

121637 }

122638 }

123639 }

640+ }

124641}

app/src/main/java/soy/iko/opencode/ui/Routes.ktnew file+36

@@ -0,0 +1,36 @@

1+package soy.iko.opencode.ui

2+

3+/** String routes for the app's NavHost. Kept simple and centralized. */

4+object Routes {

5+ const val SERVERS = "servers"

6+ const val SESSIONS = "sessions"

7+ const val SETTINGS = "settings"

8+ const val DIAGNOSTICS = "diagnostics"

9+ const val USAGE = "usage"

10+ const val MCP = "mcp"

11+ const val FILES = "files"

12+ const val SEARCH = "search"

13+

14+ const val SERVER_EDIT = "server_edit"

15+ const val SERVER_SETTINGS = "server_settings"

16+ fun serverSettings(id: String) = "$SERVER_SETTINGS/${android.net.Uri.encode(id)}"

17+

18+ const val CHAT = "chat"

19+ fun chat(sessionId: String, focusMessageId: String? = null): String {

20+ val base = "$CHAT/${android.net.Uri.encode(sessionId)}"

21+ // An optional focusMessageId scrolls the chat to (and briefly highlights) that message,

22+ // used by global search to jump directly to the matched message instead of the tail.

23+ return if (focusMessageId != null && focusMessageId.isNotBlank()) {

24+ "$base?focus=${android.net.Uri.encode(focusMessageId)}"

25+ } else {

26+ base

27+ }

28+ }

29+

30+ const val FILE_VIEW = "file_view"

31+ fun fileView(path: String, line: Int? = null): String {

32+ val base = "$FILE_VIEW?path=${android.net.Uri.encode(path)}"

33+ // A positive [line] scrolls the viewer to that 1-based line (from a search hit).

34+ return if (line != null && line > 0) "$base&line=$line" else base

35+ }

36+}

app/src/main/java/soy/iko/opencode/ui/VmFactory.ktnew file+16

@@ -0,0 +1,16 @@

1+package soy.iko.opencode.ui

2+

3+import androidx.lifecycle.ViewModel

4+import androidx.lifecycle.viewmodel.CreationExtras

5+import androidx.lifecycle.viewmodel.initializer

6+import androidx.lifecycle.viewmodel.viewModelFactory

7+

8+/**

9+ * Tiny bridge between manual DI and Compose's `viewModel()`. Builds a

10+ * [androidx.lifecycle.ViewModelProvider.Factory] from a plain constructor lambda.

11+ */

12+inline fun <reified VM : ViewModel> vmFactory(

13+ crossinline create: (CreationExtras) -> VM,

14+) = viewModelFactory {

15+ initializer { create(this) }

16+}

app/src/main/java/soy/iko/opencode/ui/chat/AgentPickerSheet.ktnew file+318

@@ -0,0 +1,318 @@

1+package soy.iko.opencode.ui.chat

2+

3+import androidx.compose.foundation.clickable

4+import androidx.compose.foundation.layout.Column

5+import androidx.compose.foundation.layout.Row

6+import androidx.compose.foundation.layout.fillMaxWidth

7+import androidx.compose.foundation.layout.heightIn

8+import androidx.compose.foundation.layout.imePadding

9+import androidx.compose.foundation.layout.navigationBarsPadding

10+import androidx.compose.foundation.layout.padding

11+import androidx.compose.foundation.layout.size

12+import androidx.compose.foundation.lazy.LazyColumn

13+import androidx.compose.foundation.lazy.items

14+import androidx.compose.foundation.lazy.rememberLazyListState

15+import androidx.compose.foundation.text.KeyboardActions

16+import androidx.compose.foundation.text.KeyboardOptions

17+import androidx.compose.material.icons.Icons

18+import androidx.compose.material.icons.filled.Check

19+import androidx.compose.material.icons.filled.Close

20+import androidx.compose.material.icons.filled.Search

21+import androidx.compose.material3.CircularProgressIndicator

22+import androidx.compose.material3.ExperimentalMaterial3Api

23+import androidx.compose.material3.Icon

24+import androidx.compose.material3.IconButton

25+import androidx.compose.material3.MaterialTheme

26+import androidx.compose.material3.ModalBottomSheet

27+import androidx.compose.material3.OutlinedTextField

28+import androidx.compose.material3.Text

29+import androidx.compose.material3.TextButton

30+import androidx.compose.material3.rememberModalBottomSheetState

31+import androidx.compose.runtime.Composable

32+import androidx.compose.runtime.LaunchedEffect

33+import androidx.compose.runtime.getValue

34+import androidx.compose.runtime.mutableStateOf

35+import androidx.compose.runtime.remember

36+import androidx.compose.runtime.rememberCoroutineScope

37+import androidx.compose.runtime.saveable.rememberSaveable

38+import androidx.compose.runtime.setValue

39+import androidx.compose.ui.Alignment

40+import androidx.compose.ui.Modifier

41+import androidx.compose.ui.focus.FocusRequester

42+import androidx.compose.ui.focus.focusRequester

43+import androidx.compose.ui.hapticfeedback.HapticFeedbackType

44+import androidx.compose.ui.platform.LocalHapticFeedback

45+import androidx.compose.ui.platform.LocalSoftwareKeyboardController

46+import androidx.compose.ui.res.stringResource

47+import androidx.compose.ui.semantics.Role

48+import androidx.compose.ui.semantics.contentDescription

49+import androidx.compose.ui.semantics.role

50+import androidx.compose.ui.semantics.selectableGroup

51+import androidx.compose.ui.semantics.selected

52+import androidx.compose.ui.semantics.semantics

53+import androidx.compose.ui.text.input.ImeAction

54+import androidx.compose.ui.text.style.TextOverflow

55+import androidx.compose.ui.unit.dp

56+import androidx.compose.foundation.layout.Box

57+import kotlinx.coroutines.launch

58+import soy.iko.opencode.data.model.Agent

59+import soy.iko.opencode.data.network.NetworkConfig

60+import soy.iko.opencode.R

61+

62+/**

63+ * Flat LazyColumn index of the selected agent, offset by the leading "Default" row when it's

64+ * shown. A null selection targets that Default row (index 0). -1 when the selection isn't in

65+ * the current list.

66+ */

67+/** Whether the synthetic "Default" agent row matches the current search query. */

68+private fun defaultAgentMatches(query: String, label: String, desc: String): Boolean =

69+ query.isEmpty() ||

70+ label.contains(query, ignoreCase = true) ||

71+ desc.contains(query, ignoreCase = true)

72+

73+private fun selectedAgentIndex(

74+ distinctAgents: List<Agent>,

75+ selected: String?,

76+ defaultMatches: Boolean,

77+): Int {

78+ if (selected == null) return if (defaultMatches) 0 else -1

79+ val base = if (defaultMatches) 1 else 0

80+ val pos = distinctAgents.indexOfFirst { it.name == selected }

81+ return if (pos >= 0) base + pos else -1

82+}

83+

84+/** Bottom sheet that lists every agent and lets the user pick one. */

85+@OptIn(ExperimentalMaterial3Api::class)

86+@Composable

87+fun AgentPickerSheet(

88+ agents: List<Agent>,

89+ selected: String?,

90+ loading: Boolean,

91+ error: Boolean,

92+ onSelect: (Agent?) -> Unit,

93+ onRetry: () -> Unit,

94+ onDismiss: () -> Unit,

95+) {

96+ // Hoist the SheetState so selection can animate the sheet out (slide) instead of

97+ // snap-dismissing by tearing down the composition. skipPartiallyExpanded = true so the

98+ // sheet opens at full height and the list's heightIn cap resolves against a stable sheet,

99+ // not the half-height partial state (which previously left the list at ~25% of the screen

100+ // until the user dragged up).

101+ val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)

102+ val scope = rememberCoroutineScope()

103+ ModalBottomSheet(onDismissRequest = onDismiss, sheetState = sheetState) {

104+ Text(

105+ stringResource(R.string.agent),

106+ style = MaterialTheme.typography.titleMedium,

107+ modifier = Modifier.padding(start = 24.dp, end = 24.dp, bottom = 8.dp),

108+ )

109+ if (loading) {

110+ val loadingLabel = stringResource(R.string.loading_agents)

111+ Column(

112+ modifier = Modifier.fillMaxWidth().padding(vertical = 24.dp).imePadding(),

113+ horizontalAlignment = Alignment.CenterHorizontally,

114+ ) {

115+ CircularProgressIndicator(Modifier.semantics { contentDescription = loadingLabel })

116+ Text(

117+ stringResource(R.string.loading_agents),

118+ style = MaterialTheme.typography.bodyMedium,

119+ color = MaterialTheme.colorScheme.onSurfaceVariant,

120+ modifier = Modifier.padding(top = 8.dp),

121+ )

122+ }

123+ } else if (error && agents.isEmpty()) {

124+ Column(

125+ modifier = Modifier.fillMaxWidth().padding(horizontal = 24.dp, vertical = 16.dp),

126+ horizontalAlignment = Alignment.CenterHorizontally,

127+ ) {

128+ Text(

129+ stringResource(R.string.load_failed),

130+ style = MaterialTheme.typography.bodyMedium,

131+ color = MaterialTheme.colorScheme.error,

132+ )

133+ TextButton(onClick = onRetry) { Text(stringResource(R.string.retry)) }

134+ }

135+ } else if (agents.isEmpty()) {

136+ Text(

137+ stringResource(R.string.no_agents),

138+ style = MaterialTheme.typography.bodyMedium,

139+ color = MaterialTheme.colorScheme.onSurfaceVariant,

140+ modifier = Modifier.padding(horizontal = 24.dp, vertical = 16.dp),

141+ )

142+ } else {

143+ var query by rememberSaveable { mutableStateOf("") }

144+ val keyboardController = LocalSoftwareKeyboardController.current

145+ val haptics = LocalHapticFeedback.current

146+ // Auto-focus the search field (and raise the keyboard) when the sheet opens, but skip

147+ // it for a short catalog that's faster to scan by eye than to filter.

148+ val searchFocus = remember { FocusRequester() }

149+ LaunchedEffect(Unit) {

150+ if (agents.size > NetworkConfig.pickerSearchAutofocusThreshold) {

151+ runCatching { searchFocus.requestFocus() }

152+ }

153+ }

154+ OutlinedTextField(

155+ value = query,

156+ onValueChange = { query = it },

157+ modifier = Modifier.fillMaxWidth().padding(horizontal = 24.dp, vertical = 8.dp).focusRequester(searchFocus),

158+ placeholder = { Text(stringResource(R.string.search_agents)) },

159+ leadingIcon = { Icon(Icons.Filled.Search, contentDescription = null) },

160+ trailingIcon = if (query.isNotEmpty()) {

161+ {

162+ IconButton(onClick = { query = "" }) {

163+ Icon(Icons.Filled.Close, contentDescription = stringResource(R.string.clear_search))

164+ }

165+ }

166+ } else null,

167+ singleLine = true,

168+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search),

169+ keyboardActions = KeyboardActions(onSearch = { keyboardController?.hide() }),

170+ )

171+ // Dedupe the source list once (keyed on `agents`, not the per-keystroke `filtered`),

172+ // so distinctBy doesn't re-walk the catalog on every character typed.

173+ val distinctAgents = remember(agents) { agents.distinctBy { it.name } }

174+ val filtered = remember(distinctAgents, query) {

175+ val q = query.trim()

176+ if (q.isEmpty()) distinctAgents

177+ else distinctAgents.filter {

178+ it.name.contains(q, ignoreCase = true) ||

179+ it.displayDescription.contains(q, ignoreCase = true)

180+ }

181+ }

182+ // The "Default" option participates in the search too: show it when the query is

183+ // empty or matches its label/description. Without this it either always showed

184+ // (ignoring the filter) or, when a query matched no named agent, disappeared with

185+ // the whole list — leaving the default unselectable.

186+ val defaultLabel = stringResource(R.string.default_agent)

187+ val defaultDesc = stringResource(R.string.default_agent_desc)

188+ val q = query.trim()

189+ val defaultMatches = defaultAgentMatches(q, defaultLabel, defaultDesc)

190+ if (filtered.isEmpty() && !defaultMatches) {

191+ Text(

192+ stringResource(R.string.no_agents_match, query.trim()),

193+ style = MaterialTheme.typography.bodyMedium,

194+ color = MaterialTheme.colorScheme.onSurfaceVariant,

195+ modifier = Modifier.padding(horizontal = 24.dp, vertical = 16.dp),

196+ )

197+ } else {

198+ val listState = rememberLazyListState()

199+ // Flat index of the selected agent, offset by the leading "Default" row when

200+ // it's shown. selected == null targets that Default row (index 0). -1 when the

201+ // selection isn't in the current list. Computed against `filtered` (not the

202+ // unfiltered distinctAgents) so a query that hides agents before the selection

203+ // still maps to the right visible row.

204+ val selectedIndex = remember(filtered, selected, defaultMatches) {

205+ selectedAgentIndex(filtered, selected, defaultMatches)

206+ }

207+ // Re-scroll to the selected item whenever the filter changes (not just once on

208+ // open), so clearing a filter that had hidden the selection brings it back into

209+ // view instead of leaving the list at the top.

210+ LaunchedEffect(filtered, defaultMatches) {

211+ if (selectedIndex >= 0) listState.scrollToItem(selectedIndex)

212+ }

213+ // Cap the list height against the screen, not the (partial) sheet, so the list

214+ // is a predictable height regardless of drag position. weight(1f) would also

215+ // work but heightIn keeps the sheet compact for short catalogs.

216+ LazyColumn(

217+ state = listState,

218+ modifier = Modifier

219+ .heightIn(max = NetworkConfig.pickerSheetMaxHeightDp.dp)

220+ .imePadding()

221+ .navigationBarsPadding()

222+ .semantics { selectableGroup() },

223+ ) {

224+ if (defaultMatches) {

225+ item(key = "__default") {

226+ Column(

227+ modifier = Modifier

228+ .fillMaxWidth()

229+ .semantics(mergeDescendants = true) {

230+ this.selected = (selected == null)

231+ }

232+ .clickable(role = Role.RadioButton) {

233+ haptics.performHapticFeedback(HapticFeedbackType.TextHandleMove)

234+ // Animate the sheet out before tearing down, so the selection

235+ // reads as a smooth transition instead of a snap disappearance.

236+ scope.launch { sheetState.hide() }.invokeOnCompletion { onDismiss() }

237+ onSelect(null)

238+ }

239+ .padding(horizontal = 24.dp, vertical = 12.dp),

240+ ) {

241+ Row(verticalAlignment = Alignment.CenterVertically) {

242+ Text(

243+ stringResource(R.string.default_agent),

244+ style = MaterialTheme.typography.bodyLarge,

245+ color = if (selected == null) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurface,

246+ modifier = Modifier.weight(1f),

247+ )

248+ if (selected == null) {

249+ Icon(

250+ Icons.Filled.Check,

251+ contentDescription = null,

252+ tint = MaterialTheme.colorScheme.primary,

253+ modifier = Modifier.size(20.dp),

254+ )

255+ }

256+ }

257+ Text(

258+ stringResource(R.string.default_agent_desc),

259+ style = MaterialTheme.typography.bodySmall,

260+ color = MaterialTheme.colorScheme.onSurfaceVariant,

261+ )

262+ }

263+ }

264+ }

265+ // distinctBy the name so a server that returns two agents with the same name

266+ // (e.g. a built-in colliding with a project-level one) can't crash the list

267+ // with LazyColumn's "Key was already used".

268+ // Namespace the agent keys so an agent literally named "__default" can't

269+ // collide with the sentinel key of the default item above (a duplicate key

270+ // crashes LazyColumn).

271+ items(filtered, key = { "agent_" + it.name }) { agent ->

272+ val isSelected = agent.name == selected

273+ Column(

274+ modifier = Modifier

275+ .fillMaxWidth()

276+ .semantics(mergeDescendants = true) {

277+ this.selected = isSelected

278+ }

279+ .clickable(role = Role.RadioButton) {

280+ haptics.performHapticFeedback(HapticFeedbackType.TextHandleMove)

281+ scope.launch { sheetState.hide() }.invokeOnCompletion { onDismiss() }

282+ onSelect(agent)

283+ }

284+ .padding(horizontal = 24.dp, vertical = 12.dp),

285+ ) {

286+ Row(verticalAlignment = Alignment.CenterVertically) {

287+ Text(

288+ agent.name,

289+ style = MaterialTheme.typography.bodyLarge,

290+ color = if (isSelected) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurface,

291+ modifier = Modifier.weight(1f),

292+ )

293+ if (isSelected) {

294+ Icon(

295+ Icons.Filled.Check,

296+ contentDescription = null,

297+ tint = MaterialTheme.colorScheme.primary,

298+ modifier = Modifier.size(20.dp),

299+ )

300+ }

301+ }

302+ Text(

303+ agent.displayDescription,

304+ style = MaterialTheme.typography.bodySmall,

305+ color = MaterialTheme.colorScheme.onSurfaceVariant,

306+ // Cap at 2 lines (matching the command picker) so a verbose

307+ // description doesn't make the row arbitrarily tall and push the

308+ // radio affordance out of alignment across the list.

309+ maxLines = 2,

310+ overflow = TextOverflow.Ellipsis,

311+ )

312+ }

313+ }

314+ }

315+ }

316+ }

317+ }

318+}

app/src/main/java/soy/iko/opencode/ui/chat/AttachmentResult.ktnew file+12

@@ -0,0 +1,12 @@

1+package soy.iko.opencode.ui.chat

2+

3+/** Outcome of turning a picked Uri into a [PendingAttachment] (see `Uri.toAttachmentResult`). */

4+sealed interface AttachmentResult {

5+ data class Ok(val attachment: PendingAttachment) : AttachmentResult

6+

7+ /** The file exceeded the size cap ([soy.iko.opencode.data.network.NetworkConfig.maxAttachmentBytes]). */

8+ data object TooLarge : AttachmentResult

9+

10+ /** The file couldn't be read/resolved. */

11+ data object Failed : AttachmentResult

12+}

app/src/main/java/soy/iko/opencode/ui/chat/Attachments.ktnew file+117

@@ -0,0 +1,117 @@

1+package soy.iko.opencode.ui.chat

2+

3+import android.content.Context

4+import android.net.Uri

5+import android.provider.OpenableColumns

6+import android.util.Base64

7+import androidx.core.content.FileProvider

8+import soy.iko.opencode.data.model.FilePromptPart

9+import soy.iko.opencode.data.network.NetworkConfig

10+import soy.iko.opencode.util.runCatchingCancellable

11+import kotlinx.coroutines.Dispatchers

12+import kotlinx.coroutines.withContext

13+import java.io.File

14+

15+/**

16+ * Read [uri]'s bytes off the main thread, base64-encode them into a `data:` URL, and wrap

17+ * the result as a [PendingAttachment] ready to send. Enforces the size cap. The original

18+ * [uri] is kept as the thumbnail model for images (Coil loads content Uris directly).

19+ */

20+suspend fun Uri.toAttachmentResult(context: Context): AttachmentResult = withContext(Dispatchers.IO) {

21+ val resolver = context.contentResolver

22+ val mime = resolver.getType(this@toAttachmentResult) ?: "application/octet-stream"

23+ val name = displayName(context) ?: defaultName(mime)

24+ val max = NetworkConfig.maxAttachmentBytes

25+ // Cheap pre-check: if the provider reports a size, reject an oversize file before reading

26+ // a single byte into memory. The picker can hand back arbitrarily large files (e.g. a

27+ // multi-hundred-MB video), so reading first and checking after would OOM the app.

28+ val declaredSize = fileSize(context)

29+ if (declaredSize != null && declaredSize > max) return@withContext AttachmentResult.TooLarge

30+ // Read with a hard cap so a provider that under-reports or omits its size still can't OOM

31+ // us: stop as soon as we've read one byte past the cap, then reject.

32+ val bytes = runCatchingCancellable {

33+ resolver.openInputStream(this@toAttachmentResult)?.use { it.readAtMost(max + 1) }

34+ }.getOrNull() ?: return@withContext AttachmentResult.Failed

35+ if (bytes.size > max) return@withContext AttachmentResult.TooLarge

36+ val b64 = Base64.encodeToString(bytes, Base64.NO_WRAP)

37+ val dataUrl = "data:$mime;base64,$b64"

38+ AttachmentResult.Ok(

39+ PendingAttachment(

40+ id = java.util.UUID.randomUUID().toString(),

41+ name = name,

42+ mime = mime,

43+ previewModel = if (mime.startsWith("image/")) this@toAttachmentResult.toString() else null,

44+ part = FilePromptPart(mime = mime, url = dataUrl, filename = name),

45+ ),

46+ )

47+}

48+

49+/** The provider-reported byte size of the content [uri], or null if it isn't exposed. */

50+private fun Uri.fileSize(context: Context): Long? = runCatching {

51+ context.contentResolver.query(this, arrayOf(OpenableColumns.SIZE), null, null, null)?.use { cursor ->

52+ val idx = cursor.getColumnIndex(OpenableColumns.SIZE)

53+ if (idx >= 0 && cursor.moveToFirst() && !cursor.isNull(idx)) cursor.getLong(idx) else null

54+ }

55+}.getOrNull()

56+

57+/** Read up to [limit] bytes from the stream without materializing the whole file, so an

58+ * oversize source can be rejected on a bounded amount of memory. Reaching [limit] bytes is

59+ * the caller's signal that the source exceeds the cap. */

60+private fun java.io.InputStream.readAtMost(limit: Long): ByteArray {

61+ val out = java.io.ByteArrayOutputStream()

62+ val chunk = ByteArray(8 * 1024)

63+ var total = 0L

64+ while (total < limit) {

65+ val want = minOf(chunk.size.toLong(), limit - total).toInt()

66+ val read = read(chunk, 0, want)

67+ if (read < 0) break

68+ out.write(chunk, 0, read)

69+ total += read

70+ }

71+ return out.toByteArray()

72+}

73+

74+/** The raw (pre-base64) byte size encoded in a `data:<mime>;base64,<payload>` URL, derived from

75+ * the payload length (len / 4 * 3, less any '=' padding) without allocating or decoding the

76+ * payload — important since the payload can be many MB. Returns 0 when the URL has no base64

77+ * payload. Lets the cumulative attachment-size cap use the same raw-byte measure as the per-file

78+ * [NetworkConfig.maxAttachmentBytes] check above (which counts raw `bytes.size`). */

79+internal fun base64DataUrlByteSize(dataUrl: String): Long {

80+ val marker = "base64,"

81+ val start = dataUrl.indexOf(marker)

82+ if (start < 0) return 0L

83+ val payloadLen = dataUrl.length - (start + marker.length)

84+ if (payloadLen <= 0) return 0L

85+ val padding = when {

86+ dataUrl.endsWith("==") -> 2

87+ dataUrl.endsWith("=") -> 1

88+ else -> 0

89+ }

90+ return payloadLen.toLong() / 4 * 3 - padding

91+}

92+

93+/** Resolve a human-readable display name for the content [uri], if the provider exposes one. */

94+private fun Uri.displayName(context: Context): String? = runCatching {

95+ context.contentResolver.query(this, arrayOf(OpenableColumns.DISPLAY_NAME), null, null, null)?.use { cursor ->

96+ val idx = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)

97+ if (idx >= 0 && cursor.moveToFirst()) cursor.getString(idx) else null

98+ }

99+}.getOrNull()?.takeIf { it.isNotBlank() }

100+

101+private fun defaultName(mime: String): String {

102+ val ext = mime.substringAfterLast('/', "bin").takeIf { it.isNotBlank() } ?: "bin"

103+ return "attachment.$ext"

104+}

105+

106+/**

107+ * Create a temp file in the cache and a shareable content [Uri] for it (via the app's

108+ * [FileProvider]) to hand to the camera as the capture target. Returns null if it can't be

109+ * created. Uses a fixed filename so each capture overwrites the prior (the OS also evicts

110+ * cache under storage pressure); a unique-per-capture timestamped name would leak a .jpg

111+ * per canceled capture in cacheDir/captures/ with no cleanup path.

112+ */

113+fun newCameraCaptureUri(context: Context): Uri? = runCatching {

114+ val dir = File(context.cacheDir, "captures").apply { mkdirs() }

115+ val file = File(dir, "capture.jpg")

116+ FileProvider.getUriForFile(context, "${context.packageName}.fileprovider", file)

117+}.getOrNull()

app/src/main/java/soy/iko/opencode/ui/chat/ChatAttachments.ktnew file+258

@@ -0,0 +1,258 @@

1+package soy.iko.opencode.ui.chat

2+

3+import androidx.compose.foundation.layout.Arrangement

4+import androidx.compose.foundation.layout.Box

5+import androidx.compose.foundation.layout.Column

6+import androidx.compose.foundation.layout.Row

7+import androidx.compose.foundation.layout.fillMaxSize

8+import androidx.compose.foundation.layout.fillMaxWidth

9+import androidx.compose.foundation.layout.padding

10+import androidx.compose.foundation.layout.size

11+import androidx.compose.foundation.layout.widthIn

12+import androidx.compose.foundation.clickable

13+import androidx.compose.foundation.combinedClickable

14+import androidx.compose.foundation.horizontalScroll

15+import androidx.compose.foundation.rememberScrollState

16+import androidx.compose.material.icons.Icons

17+import androidx.compose.material.icons.filled.Close

18+import androidx.compose.material.icons.filled.Description

19+import androidx.compose.material3.AlertDialog

20+import androidx.compose.material3.CircularProgressIndicator

21+import androidx.compose.material3.Icon

22+import androidx.compose.material3.IconButton

23+import androidx.compose.material3.MaterialTheme

24+import androidx.compose.material3.Surface

25+import androidx.compose.material3.Text

26+import androidx.compose.runtime.Composable

27+import androidx.compose.runtime.getValue

28+import androidx.compose.runtime.mutableStateOf

29+import androidx.compose.runtime.remember

30+import androidx.compose.runtime.setValue

31+import androidx.compose.ui.Alignment

32+import androidx.compose.ui.Modifier

33+import androidx.compose.ui.draw.clip

34+import androidx.compose.ui.layout.ContentScale

35+import androidx.compose.ui.res.stringResource

36+import androidx.compose.ui.semantics.Role

37+import androidx.compose.ui.semantics.contentDescription

38+import androidx.compose.ui.semantics.semantics

39+import androidx.compose.ui.text.style.TextOverflow

40+import androidx.compose.ui.unit.dp

41+import androidx.compose.ui.window.Dialog

42+import androidx.compose.ui.window.DialogProperties

43+import coil3.compose.AsyncImage

44+import soy.iko.opencode.R

45+import soy.iko.opencode.data.network.NetworkConfig

46+import java.util.Locale

47+

48+/**

49+ * The staged-attachment UI for the chat composer — extracted from ChatScreen so that (large)

50+ * file stays focused on the conversation surface. `internal` so ChatScreen can call it.

51+ *

52+ * When at least one attachment is staged, a muted total-size label is rendered at the end of

53+ * the strip so the user can see how close they are to the cumulative [NetworkConfig.maxTotalAttachmentBytes]

54+ * cap — a bare per-file cap doesn't surface the combined total, and a failed send is the only

55+ * other feedback.

56+ */

57+@Composable

58+internal fun AttachmentStrip(

59+ attachments: List<PendingAttachment>,

60+ onRemove: (String) -> Unit,

61+ staging: Boolean = false,

62+ stagingFileCount: Int = 0,

63+) {

64+ // Show the strip while an encode is in flight even before the first chip exists, so the

65+ // user gets immediate feedback that their pick is being processed.

66+ if (attachments.isEmpty() && !staging) return

67+ // Horizontally-scrollable strip of staged attachment thumbnails/chips, each removable.

68+ Row(

69+ modifier = Modifier

70+ .fillMaxWidth()

71+ .horizontalScroll(rememberScrollState())

72+ .padding(start = 8.dp, end = 8.dp, top = 8.dp),

73+ horizontalArrangement = Arrangement.spacedBy(8.dp),

74+ verticalAlignment = Alignment.CenterVertically,

75+ ) {

76+ attachments.forEach { att ->

77+ AttachmentChip(att, onRemove = { onRemove(att.id) })

78+ }

79+ // A placeholder chip with an indeterminate spinner while any pick is still being

80+ // read + base64-encoded off the main thread (chips only materialize once done).

81+ if (staging) StagingChip(stagingFileCount)

82+ // Total staged size label — surfaced so the user can see how close they are to the

83+ // cumulative cap before a send fails. Hidden while staging (the total is in flux).

84+ if (!staging && attachments.isNotEmpty()) {

85+ val totalBytes = remember(attachments) {

86+ attachments.sumOf { base64DataUrlByteSize(it.part.url) }

87+ }

88+ val maxBytes = NetworkConfig.maxTotalAttachmentBytes

89+ val label = remember(totalBytes, maxBytes) { formatAttachmentTotal(totalBytes, maxBytes) }

90+ val over = totalBytes > maxBytes

91+ Text(

92+ label,

93+ style = MaterialTheme.typography.labelSmall,

94+ color = if (over) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.onSurfaceVariant,

95+ modifier = Modifier.padding(start = 4.dp, end = 4.dp),

96+ )

97+ }

98+ }

99+}

100+

101+/** Format the staged-attachment total as "N.N MB / max" (or KB when small), for the strip label. */

102+private fun formatAttachmentTotal(bytes: Long, max: Long): String {

103+ val mb = 1024.0 * 1024.0

104+ val kb = 1024.0

105+ val used = when {

106+ bytes >= mb -> String.format(Locale.US, "%.1f MB", bytes / mb)

107+ bytes >= kb -> String.format(Locale.US, "%.0f KB", bytes / kb)

108+ else -> "$bytes B"

109+ }

110+ val maxStr = when {

111+ max >= mb -> String.format(Locale.US, "%.0f MB", max / mb)

112+ max >= kb -> String.format(Locale.US, "%.0f KB", max / kb)

113+ else -> "$max B"

114+ }

115+ return "$used / $maxStr"

116+}

117+

118+/** A placeholder chip shown while an attachment is being encoded. */

119+@Composable

120+private fun StagingChip(stagingFileCount: Int) {

121+ // Show "Staging N files…" when a multi-file count is known; fall back to the generic

122+ // "Attaching…" for the single/unknown case so the label never reads "Staging 1 files".

123+ val label = if (stagingFileCount > 1) {

124+ stringResource(R.string.staging_n_files, stagingFileCount)

125+ } else {

126+ stringResource(R.string.attachment_staging)

127+ }

128+ Surface(

129+ shape = MaterialTheme.shapes.small,

130+ color = MaterialTheme.colorScheme.surfaceVariant,

131+ tonalElevation = 1.dp,

132+ ) {

133+ Row(

134+ verticalAlignment = Alignment.CenterVertically,

135+ modifier = Modifier.padding(horizontal = 10.dp),

136+ ) {

137+ CircularProgressIndicator(

138+ Modifier.size(18.dp).semantics { contentDescription = label },

139+ strokeWidth = 2.dp,

140+ )

141+ Text(

142+ label,

143+ style = MaterialTheme.typography.labelMedium,

144+ maxLines = 1,

145+ modifier = Modifier.padding(start = 8.dp, top = 10.dp, bottom = 10.dp),

146+ )

147+ }

148+ }

149+}

150+

151+/** A single staged attachment: an image thumbnail (or a generic file icon) with its name

152+ * and a remove button. Tapping the thumbnail/name of an image attachment opens a fullscreen

153+ * preview so the user can verify it before sending (a sent image costs tokens and can't be

154+ * unsent). */

155+@Composable

156+private fun AttachmentChip(attachment: PendingAttachment, onRemove: () -> Unit) {

157+ var showPreview by remember { mutableStateOf(false) }

158+ var showNameDialog by remember { mutableStateOf(false) }

159+ val previewLabel = stringResource(R.string.preview_attachment)

160+ val haptics = androidx.compose.ui.platform.LocalHapticFeedback.current

161+ Surface(

162+ shape = MaterialTheme.shapes.small,

163+ color = MaterialTheme.colorScheme.surfaceVariant,

164+ tonalElevation = 1.dp,

165+ ) {

166+ Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.padding(start = 6.dp)) {

167+ if (attachment.previewModel != null) {

168+ AsyncImage(

169+ model = attachment.previewModel,

170+ contentDescription = attachment.name,

171+ contentScale = ContentScale.Crop,

172+ modifier = Modifier

173+ .size(36.dp)

174+ .clip(MaterialTheme.shapes.extraSmall)

175+ .semantics { contentDescription = previewLabel }

176+ .clickable(role = Role.Image) { showPreview = true },

177+ )

178+ } else {

179+ // Long-press the file icon to see the full filename (it's truncated to 120dp

180+ // in the chip, so a long name can't be read in full otherwise). Mirrors the

181+ // image chip's tap-to-preview pattern for non-image files.

182+ Icon(

183+ Icons.Filled.Description,

184+ contentDescription = null,

185+ modifier = Modifier

186+ .size(24.dp)

187+ .combinedClickable(

188+ role = Role.Image,

189+ onLongClick = {

190+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)

191+ showNameDialog = true

192+ },

193+ onClick = {},

194+ ),

195+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

196+ )

197+ }

198+ Text(

199+ attachment.name,

200+ style = MaterialTheme.typography.labelMedium,

201+ maxLines = 1,

202+ overflow = TextOverflow.Ellipsis,

203+ modifier = Modifier.widthIn(max = 120.dp).padding(horizontal = 6.dp),

204+ )

205+ // No .size() override so the IconButton keeps its default 48dp touch target

206+ // (a11y minimum) while the visual X stays small (16dp).

207+ IconButton(onClick = onRemove) {

208+ Icon(

209+ Icons.Filled.Close,

210+ contentDescription = stringResource(R.string.remove),

211+ modifier = Modifier.size(16.dp),

212+ )

213+ }

214+ }

215+ }

216+ if (showPreview && attachment.previewModel != null) {

217+ Dialog(

218+ onDismissRequest = { showPreview = false },

219+ properties = DialogProperties(usePlatformDefaultWidth = false, decorFitsSystemWindows = false),

220+ ) {

221+ Box(

222+ modifier = Modifier.fillMaxSize().padding(16.dp),

223+ contentAlignment = Alignment.Center,

224+ ) {

225+ AsyncImage(

226+ model = attachment.previewModel,

227+ contentDescription = attachment.name,

228+ contentScale = ContentScale.Fit,

229+ modifier = Modifier.fillMaxWidth().clickable(role = Role.Image) { showPreview = false },

230+ )

231+ IconButton(

232+ onClick = { showPreview = false },

233+ modifier = Modifier.align(Alignment.TopEnd),

234+ ) {

235+ Icon(Icons.Filled.Close, contentDescription = stringResource(R.string.close))

236+ }

237+ }

238+ }

239+ }

240+ if (showNameDialog) {

241+ AlertDialog(

242+ onDismissRequest = { showNameDialog = false },

243+ title = { Text(stringResource(R.string.attachment_name)) },

244+ text = {

245+ Text(

246+ attachment.name,

247+ style = MaterialTheme.typography.bodyMedium,

248+ fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,

249+ )

250+ },

251+ confirmButton = {

252+ androidx.compose.material3.TextButton(onClick = { showNameDialog = false }) {

253+ Text(stringResource(R.string.close))

254+ }

255+ },

256+ )

257+ }

258+}

app/src/main/java/soy/iko/opencode/ui/chat/ChatScreen.ktnew file+3432

@@ -0,0 +1,3432 @@

1+@file:Suppress("TooManyFunctions")

2+

3+package soy.iko.opencode.ui.chat

4+

5+import android.app.Activity

6+import android.content.Intent

7+import android.net.Uri

8+import android.speech.RecognizerIntent

9+import androidx.activity.compose.BackHandler

10+import androidx.activity.compose.rememberLauncherForActivityResult

11+import androidx.activity.result.PickVisualMediaRequest

12+import androidx.activity.result.contract.ActivityResultContracts

13+import androidx.compose.animation.AnimatedVisibility

14+import androidx.compose.animation.core.RepeatMode

15+import androidx.compose.animation.core.animateFloat

16+import androidx.compose.animation.core.infiniteRepeatable

17+import androidx.compose.animation.core.rememberInfiniteTransition

18+import androidx.compose.animation.core.tween

19+import androidx.compose.foundation.background

20+import androidx.compose.foundation.clickable

21+import androidx.compose.foundation.content.contentReceiver

22+import androidx.compose.foundation.layout.Arrangement

23+import androidx.compose.foundation.layout.Box

24+import androidx.compose.foundation.layout.Column

25+import androidx.compose.foundation.layout.FlowRow

26+import androidx.compose.foundation.layout.PaddingValues

27+import androidx.compose.foundation.layout.Row

28+import androidx.compose.foundation.layout.Spacer

29+import androidx.compose.foundation.layout.WindowInsets

30+import androidx.compose.foundation.layout.fillMaxSize

31+import androidx.compose.foundation.layout.fillMaxWidth

32+import androidx.compose.foundation.layout.heightIn

33+import androidx.compose.foundation.layout.height

34+import androidx.compose.foundation.layout.imePadding

35+import androidx.compose.foundation.layout.ime

36+import androidx.compose.foundation.layout.navigationBars

37+import androidx.compose.foundation.layout.padding

38+import androidx.compose.foundation.layout.size

39+import androidx.compose.foundation.layout.union

40+import androidx.compose.foundation.layout.widthIn

41+import androidx.compose.foundation.layout.windowInsetsPadding

42+import androidx.compose.foundation.layout.wrapContentWidth

43+import androidx.compose.foundation.lazy.LazyColumn

44+import androidx.compose.foundation.lazy.items

45+import androidx.compose.foundation.lazy.rememberLazyListState

46+import androidx.compose.foundation.shape.RoundedCornerShape

47+import androidx.compose.material.icons.Icons

48+import androidx.compose.material.icons.automirrored.filled.ArrowBack

49+import androidx.compose.material.icons.automirrored.filled.Send

50+import androidx.compose.material.icons.filled.ErrorOutline

51+import androidx.compose.material.icons.filled.Add

52+import androidx.compose.material.icons.filled.AutoAwesome

53+import androidx.compose.material.icons.filled.Delete

54+import androidx.compose.material.icons.filled.Description

55+import androidx.compose.material.icons.filled.Close

56+import androidx.compose.material.icons.filled.Edit

57+import androidx.compose.material.icons.filled.Expand

58+import androidx.compose.material.icons.filled.FormatQuote

59+import androidx.compose.material.icons.filled.ExpandLess

60+import androidx.compose.material.icons.filled.ExpandMore

61+import androidx.compose.material.icons.filled.Search

62+import androidx.compose.material.icons.filled.KeyboardArrowDown

63+import androidx.compose.material.icons.filled.KeyboardArrowUp

64+import androidx.compose.material.icons.filled.Mic

65+import androidx.compose.material.icons.filled.MoreVert

66+import androidx.compose.material.icons.filled.PhotoCamera

67+import androidx.compose.material.icons.filled.PhotoLibrary

68+import androidx.compose.material.icons.filled.Refresh

69+import androidx.compose.material.icons.filled.Restore

70+import androidx.compose.material.icons.automirrored.filled.PlaylistAdd

71+import androidx.compose.material.icons.automirrored.filled.Reply

72+import androidx.compose.material.icons.filled.Schedule

73+import androidx.compose.material.icons.filled.Stop

74+import androidx.compose.material3.AlertDialog

75+import androidx.compose.material3.Badge

76+import androidx.compose.material3.BadgedBox

77+import androidx.compose.material3.Button

78+import androidx.compose.material3.CircularProgressIndicator

79+import androidx.compose.material3.SmallFloatingActionButton

80+import androidx.compose.material3.DropdownMenu

81+import androidx.compose.material3.DropdownMenuItem

82+import androidx.compose.material3.ExperimentalMaterial3Api

83+import androidx.compose.material3.ExtendedFloatingActionButton

84+import androidx.compose.material3.FloatingActionButton

85+import androidx.compose.material3.Icon

86+import androidx.compose.material3.IconButton

87+import androidx.compose.material3.MaterialTheme

88+import androidx.compose.material3.OutlinedTextField

89+import androidx.compose.material3.Scaffold

90+import androidx.compose.material3.SnackbarDuration

91+import androidx.compose.material3.SwipeToDismissBox

92+import androidx.compose.material3.SwipeToDismissBoxValue

93+import androidx.compose.material3.rememberSwipeToDismissBoxState

94+import androidx.compose.material3.SnackbarHost

95+import androidx.compose.material3.SnackbarHostState

96+import androidx.compose.material3.SnackbarResult

97+import androidx.compose.material3.Surface

98+import androidx.compose.material3.Text

99+import androidx.compose.material3.TextButton

100+import androidx.compose.material3.TopAppBar

101+import androidx.compose.material3.pulltorefresh.PullToRefreshBox

102+import androidx.compose.runtime.Composable

103+import androidx.compose.runtime.CompositionLocalProvider

104+import androidx.compose.runtime.DisposableEffect

105+import androidx.compose.runtime.LaunchedEffect

106+import androidx.compose.runtime.derivedStateOf

107+import androidx.compose.runtime.getValue

108+import androidx.compose.runtime.mutableIntStateOf

109+import androidx.compose.runtime.mutableLongStateOf

110+import androidx.compose.runtime.mutableStateOf

111+import androidx.compose.runtime.produceState

112+import androidx.compose.runtime.remember

113+import androidx.compose.runtime.rememberCoroutineScope

114+import androidx.compose.runtime.rememberUpdatedState

115+import androidx.compose.runtime.saveable.rememberSaveable

116+import androidx.compose.runtime.setValue

117+import androidx.compose.runtime.snapshotFlow

118+import androidx.compose.foundation.text.KeyboardActions

119+import androidx.compose.foundation.text.KeyboardOptions

120+import androidx.compose.ui.text.input.KeyboardCapitalization

121+import androidx.compose.ui.Alignment

122+import androidx.compose.ui.Modifier

123+import androidx.compose.ui.draw.alpha

124+import androidx.compose.ui.draw.clip

125+import androidx.compose.ui.focus.focusRequester

126+import androidx.compose.ui.input.key.Key

127+import androidx.compose.ui.input.key.KeyEventType

128+import androidx.compose.ui.input.key.isCtrlPressed

129+import androidx.compose.ui.input.key.isShiftPressed

130+import androidx.compose.ui.input.key.key

131+import androidx.compose.ui.input.key.onPreviewKeyEvent

132+import androidx.compose.ui.input.key.type

133+import androidx.compose.ui.layout.onSizeChanged

134+import androidx.compose.ui.platform.LocalContext

135+import androidx.compose.ui.platform.LocalDensity

136+import androidx.compose.ui.platform.LocalHapticFeedback

137+import androidx.compose.ui.platform.LocalLayoutDirection

138+import androidx.compose.ui.platform.LocalView

139+import androidx.compose.ui.platform.testTag

140+import androidx.compose.ui.unit.LayoutDirection

141+import androidx.compose.ui.res.pluralStringResource

142+import androidx.compose.ui.res.stringResource

143+import androidx.compose.ui.semantics.Role

144+import androidx.compose.ui.semantics.contentDescription

145+import androidx.compose.ui.semantics.heading

146+import androidx.compose.ui.semantics.liveRegion

147+import androidx.compose.ui.semantics.LiveRegionMode

148+import androidx.compose.ui.semantics.invisibleToUser

149+import androidx.compose.ui.semantics.semantics

150+import androidx.compose.ui.text.input.ImeAction

151+import androidx.compose.ui.text.style.TextOverflow

152+import androidx.compose.ui.unit.dp

153+import androidx.lifecycle.compose.collectAsStateWithLifecycle

154+import androidx.lifecycle.viewmodel.compose.viewModel

155+import kotlinx.coroutines.Dispatchers

156+import kotlinx.coroutines.coroutineScope

157+import kotlinx.coroutines.delay

158+import kotlinx.coroutines.flow.collectLatest

159+import kotlinx.coroutines.flow.distinctUntilChanged

160+import kotlinx.coroutines.flow.first

161+import kotlinx.coroutines.launch

162+import kotlinx.coroutines.withContext

163+import soy.iko.opencode.data.model.Part

164+import soy.iko.opencode.data.model.MessageWithParts

165+import soy.iko.opencode.data.model.AssistantMessage

166+import soy.iko.opencode.data.model.Command

167+import soy.iko.opencode.data.model.ReasoningPart

168+import soy.iko.opencode.data.model.TextPart

169+import soy.iko.opencode.data.model.ToolCompleted

170+import soy.iko.opencode.data.model.ToolError

171+import soy.iko.opencode.data.model.ToolPart

172+import soy.iko.opencode.data.model.ToolRunning

173+import soy.iko.opencode.data.model.FilePart

174+import soy.iko.opencode.data.model.sourcePath

175+import soy.iko.opencode.data.model.inputElement

176+import soy.iko.opencode.data.network.EventStreamClient

177+import soy.iko.opencode.data.network.NetworkConfig

178+import soy.iko.opencode.di.AppContainer

179+import soy.iko.opencode.R

180+import soy.iko.opencode.ui.components.CommandPalette

181+import soy.iko.opencode.ui.components.ConnectionBanner

182+import soy.iko.opencode.ui.components.DiffView

183+import soy.iko.opencode.ui.components.PaletteAction

184+import soy.iko.opencode.ui.components.LocalReducedMotion

185+import soy.iko.opencode.ui.components.LocalSearchHighlight

186+import soy.iko.opencode.ui.components.reducedMotionAnimateItem

187+import soy.iko.opencode.ui.components.copyToClipboard

188+import soy.iko.opencode.ui.components.LocalRelativeTimeTick

189+import soy.iko.opencode.ui.components.rememberRelativeTimeTick

190+import soy.iko.opencode.ui.components.rememberVisibilityTransitions

191+import soy.iko.opencode.ui.components.showToast

192+import soy.iko.opencode.ui.components.toImageContext

193+import soy.iko.opencode.ui.vmFactory

194+import soy.iko.opencode.util.runCatchingCancellable

195+

196+// Optional message id to scroll to and briefly highlight on first load (from global search).

197+// Consumed once: after the message is scrolled into view and highlighted, the focus is

198+// cleared so subsequent recompositions don't re-trigger the scroll.

199+@OptIn(ExperimentalMaterial3Api::class)

200+@Composable

201+fun ChatScreen(

202+ container: AppContainer,

203+ sessionId: String,

204+ onBack: () -> Unit,

205+ onOpenFile: ((String) -> Unit)? = null,

206+ onOpenSession: ((String) -> Unit)? = null,

207+ focusMessageId: String? = null,

208+ onEditProfile: ((String) -> Unit)? = null,

209+) {

210+ val vm: ChatViewModel = viewModel(key = sessionId, factory = vmFactory { ChatViewModel(container, sessionId) })

211+ val hasMessages by vm.hasMessages.collectAsStateWithLifecycle()

212+ val running by vm.running.collectAsStateWithLifecycle()

213+ val streamInterrupted by vm.streamInterrupted.collectAsStateWithLifecycle()

214+ val aborting by vm.aborting.collectAsStateWithLifecycle()

215+ val loading by vm.loading.collectAsStateWithLifecycle()

216+ val loadError by vm.loadError.collectAsStateWithLifecycle()

217+ val loadErrorInline by vm.loadErrorInline.collectAsStateWithLifecycle()

218+ val refreshing by vm.refreshing.collectAsStateWithLifecycle()

219+ val models by vm.models.collectAsStateWithLifecycle()

220+ val modelsLoading by vm.modelsLoading.collectAsStateWithLifecycle()

221+ val modelsError by vm.modelsError.collectAsStateWithLifecycle()

222+ val selectedModel by vm.selectedModel.collectAsStateWithLifecycle()

223+ val connectionState by vm.connectionState.collectAsStateWithLifecycle()

224+ val reconnectAttempts by vm.reconnectAttempts.collectAsStateWithLifecycle()

225+ val pendingPermission by vm.pendingPermission.collectAsStateWithLifecycle()

226+ val permissionProgress by vm.permissionProgress.collectAsStateWithLifecycle()

227+ val agents by vm.agents.collectAsStateWithLifecycle()

228+ val agentsLoading by vm.agentsLoading.collectAsStateWithLifecycle()

229+ val agentsError by vm.agentsError.collectAsStateWithLifecycle()

230+ val selectedAgent by vm.selectedAgent.collectAsStateWithLifecycle()

231+ val commands by vm.commands.collectAsStateWithLifecycle()

232+ val commandsLoading by vm.commandsLoading.collectAsStateWithLifecycle()

233+ val commandsError by vm.commandsError.collectAsStateWithLifecycle()

234+ val sessionTitle by vm.sessionTitle.collectAsStateWithLifecycle()

235+ val sessionDeleted by vm.sessionDeleted.collectAsStateWithLifecycle()

236+ val draft by vm.draft.collectAsStateWithLifecycle()

237+ val pendingQuote by vm.pendingQuote.collectAsStateWithLifecycle()

238+ val attachments by vm.attachments.collectAsStateWithLifecycle()

239+ val reverted by vm.reverted.collectAsStateWithLifecycle()

240+ val editing by vm.editing.collectAsStateWithLifecycle()

241+ val revertDiff by vm.revertDiff.collectAsStateWithLifecycle()

242+ val shareUrl by vm.shareUrl.collectAsStateWithLifecycle()

243+ val reconnecting by vm.reconnecting.collectAsStateWithLifecycle()

244+ val sendOnEnter by container.settingsStore.sendOnEnter.collectAsStateWithLifecycle(initialValue = true)

245+ val preferredModelId by container.settingsStore.preferredModelId.collectAsStateWithLifecycle(initialValue = "")

246+ val recentModelEntries by container.recentModelsStore.entries.collectAsStateWithLifecycle()

247+ val compactSpacing by container.settingsStore.compactMessageSpacing.collectAsStateWithLifecycle(initialValue = false)

248+ val notifPermission by container.settingsStore.notifPermission.collectAsStateWithLifecycle(initialValue = true)

249+ val isOnline by container.isOnline.collectAsStateWithLifecycle()

250+ val haptics = LocalHapticFeedback.current

251+ val layoutDirection = LocalLayoutDirection.current

252+ val scope = rememberCoroutineScope()

253+ val shareContext = LocalContext.current

254+ val defaultShareSubject = stringResource(R.string.share_subject)

255+ val sessionLabel = stringResource(R.string.session)

256+ val defaultModelLabel = stringResource(R.string.default_model)

257+ val subtitle = remember(selectedModel?.modelLabel, selectedAgent, defaultModelLabel) {

258+ buildString {

259+ append(selectedModel?.modelLabel ?: defaultModelLabel)

260+ selectedAgent?.let { append(" · $it") }

261+ }

262+ }

263+

264+ // Connection profile (with auth) for rendering inline image attachments.

265+ // Collect as state so a server switch recomposes the image context.

266+ val activeConnection by container.activeConnection.collectAsStateWithLifecycle()

267+ val imageContext = remember(activeConnection?.profile) {

268+ activeConnection?.profile?.toImageContext()

269+ }

270+

271+ // Mark this session as read while the user is viewing it; clear on leave so new

272+ // background activity can badge it again.

273+ DisposableEffect(sessionId) {

274+ container.setCurrentSession(sessionId)

275+ onDispose { if (container.currentSession.value == sessionId) container.setCurrentSession(null) }

276+ }

277+

278+ // Navigate away when the session is deleted via SSE so the user isn't left

279+ // on a zombie screen showing a conversation that no longer exists. Surface a

280+ // toast (not a snackbar) because the screen is about to be popped — a snackbar

281+ // would be torn down before the user could read it, while a toast survives.

282+ // Covers both SSE-driven deletion (deleted on another device) and a user-

283+ // initiated delete from the chat overflow menu (deleteSession in ChatViewModel

284+ // sets the same flag on success).

285+ val deletedContext = LocalContext.current

286+ LaunchedEffect(sessionDeleted) {

287+ if (sessionDeleted) {

288+ showToast(deletedContext, deletedContext.getString(R.string.session_deleted_chat))

289+ onBack()

290+ }

291+ }

292+

293+ val snackbar = remember { SnackbarHostState() }

294+ val retryLabel = stringResource(R.string.retry)

295+ val inputFocusRequester = remember { androidx.compose.ui.focus.FocusRequester() }

296+ // Dedicated focus requester for the in-conversation search field. The overflow menu's

297+ // "Find in conversation" and Ctrl+F previously called inputFocusRequester.requestFocus()

298+ // (the composer), so typing went to the composer instead of the search field.

299+ val searchFocusRequester = remember { androidx.compose.ui.focus.FocusRequester() }

300+ var showModelPicker by rememberSaveable { mutableStateOf(false) }

301+ var showAgentPicker by rememberSaveable { mutableStateOf(false) }

302+ var showTitleMenu by rememberSaveable { mutableStateOf(false) }

303+ var showCommandPicker by rememberSaveable { mutableStateOf(false) }

304+ var showExitConfirm by rememberSaveable { mutableStateOf(false) }

305+ var showOverflowMenu by rememberSaveable { mutableStateOf(false) }

306+ var showRenameDialog by rememberSaveable { mutableStateOf(false) }

307+ var showDeleteDialog by rememberSaveable { mutableStateOf(false) }

308+ var showShellDialog by rememberSaveable { mutableStateOf(false) }

309+ var showPalette by rememberSaveable { mutableStateOf(false) }

310+ var showShortcutsDialog by rememberSaveable { mutableStateOf(false) }

311+ var searchActive by rememberSaveable { mutableStateOf(false) }

312+ var chatSearch by rememberSaveable { mutableStateOf("") }

313+ // Index of the currently-focused in-conversation search match (into the filtered list).

314+ // Drives the up/down navigation: the search bar's arrows step through matches and scroll

315+ // the list to each one, mirroring desktop chat apps (the bare filtered list previously

316+ // required reading each message to find the term).

317+ var searchPos by rememberSaveable { mutableIntStateOf(0) }

318+ // Summarize and init (generate AGENTS.md) are irreversible, so a single tap is gated behind

319+ // a confirmation dialog (from both the overflow menu and the command palette).

320+ var showSummarizeConfirm by rememberSaveable { mutableStateOf(false) }

321+ var showInitConfirm by rememberSaveable { mutableStateOf(false) }

322+

323+ // Command-palette entries (keyboard-first: Ctrl+K). Labels resolved here so the remembered

324+ // action list doesn't need a Composable context. Actions map to the same handlers the

325+ // overflow menu drives, so the palette is a keyboard shortcut to them, not a parallel path.

326+ val paletteModelLabel = stringResource(R.string.palette_switch_model)

327+ val paletteAgentLabel = stringResource(R.string.palette_choose_agent)

328+ val paletteCommandLabel = stringResource(R.string.palette_run_command)

329+ val paletteSummarizeLabel = stringResource(R.string.palette_summarize)

330+ val paletteRenameLabel = stringResource(R.string.rename_session_chat)

331+ val paletteShellLabel = stringResource(R.string.run_shell_command)

332+ val paletteActions = remember(

333+ paletteModelLabel, paletteAgentLabel, paletteCommandLabel,

334+ paletteSummarizeLabel, paletteRenameLabel, paletteShellLabel, hasMessages, running,

335+ ) {

336+ buildList {

337+ add(PaletteAction("model", paletteModelLabel) { showModelPicker = true })

338+ add(PaletteAction("agent", paletteAgentLabel) { showAgentPicker = true })

339+ add(PaletteAction("command", paletteCommandLabel) { showCommandPicker = true })

340+ if (hasMessages && !running) add(PaletteAction("summarize", paletteSummarizeLabel) { showSummarizeConfirm = true })

341+ if (!running) add(PaletteAction("shell", paletteShellLabel) { showShellDialog = true })

342+ add(PaletteAction("rename", paletteRenameLabel) { showRenameDialog = true })

343+ }

344+ }

345+

346+ // Keep the screen awake while the agent is working in *this* session. The foreground

347+ // service that holds process priority during a run is managed app-wide off

348+ // container.anyRunActive (see OpencodeApp) so it survives navigating away from the chat

349+ // mid-run — otherwise leaving the screen would drop priority and Doze could choke the

350+ // SSE stream before the completion notification fires.

351+ val currentView = LocalView.current

352+ val appContext = LocalContext.current.applicationContext

353+ DisposableEffect(running) {

354+ currentView.keepScreenOn = running

355+ onDispose { currentView.keepScreenOn = false }

356+ }

357+

358+ LaunchedEffect(Unit) {

359+ vm.errorEvents.collect { event ->

360+ // Only a failed *send* is retryable; attaching Retry to any other error (e.g. a

361+ // message-load failure) would silently re-submit the last prompt on tap.

362+ val result = if (event.retryable) {

363+ snackbar.showSnackbar(message = event.message, actionLabel = retryLabel)

364+ } else {

365+ snackbar.showSnackbar(event.message)

366+ }

367+ if (result == androidx.compose.material3.SnackbarResult.ActionPerformed) vm.retryFailed()

368+ }

369+ }

370+

371+ // Stop-undo: abort() emits the last-sent prompt here so this collector can show a

372+ // "Stopped — Undo" snackbar. Tapping Undo re-sends the prompt, recovering an accidental

373+ // Stop without a confirmation dialog (Stop now happens on first tap).

374+ val undoStopLabel = stringResource(R.string.undo)

375+ val stoppedLabel = stringResource(R.string.run_stopped_undo)

376+ LaunchedEffect(Unit) {

377+ vm.stopUndoEvents.collect { prompt ->

378+ if (prompt != null) {

379+ val result = snackbar.showSnackbar(message = stoppedLabel, actionLabel = undoStopLabel)

380+ if (result == androidx.compose.material3.SnackbarResult.ActionPerformed) vm.resendLastPrompt()

381+ }

382+ }

383+ }

384+

385+ // In-place Undo for a user-initiated session delete. The delete is deferred for an undo

386+ // window on the container; show the snackbar over the conversation the user is viewing so

387+ // they can cancel without being navigated to the session list first. If the window expires

388+ // the scheduled delete sets `sessionDeleted` and the effect below navigates away.

389+ //

390+ // collectLatest (not collect): a serialized collect queues each snackbar behind the

391+ // previous one's full window, so under a rapid re-delete (delete A, then delete the same

392+ // session again, or a delete timed just after the first) the VM delete timer (started at

393+ // emit time) fires before the second snackbar is ever shown — a dead Undo button.

394+ // collectLatest cancels the current snackbar and shows the newest immediately, keeping its

395+ // Undo window aligned with its timer. Tracking `pending` mirrors SessionListScreen: when a

396+ // newer delete supersedes the prior snackbar mid-window, the prior session's deferred REST

397+ // delete (still scheduled on the container's scope) would fire with no reachable Undo.

398+ // Withdrawing it via cancelSessionDelete cancels the timer (no-op if it already fired), so

399+ // no session is silently deleted without a chance to undo.

400+ val undoLabel = stringResource(R.string.undo)

401+ val sessionDeletedLabel = stringResource(R.string.session_deleted_chat)

402+ LaunchedEffect(Unit) {

403+ var pending: String? = null

404+ vm.deleteUndoEvents.collectLatest { id ->

405+ pending?.let { vm.cancelSessionDelete(it) }

406+ pending = id

407+ coroutineScope {

408+ val dismisser = launch {

409+ delay(NetworkConfig.undoDeleteDelayMs)

410+ snackbar.currentSnackbarData?.dismiss()

411+ }

412+ val result = snackbar.showSnackbar(

413+ message = sessionDeletedLabel,

414+ actionLabel = undoLabel,

415+ duration = SnackbarDuration.Indefinite,

416+ )

417+ dismisser.cancel()

418+ if (result == SnackbarResult.ActionPerformed) {

419+ vm.cancelSessionDelete(id)

420+ pending = null

421+ }

422+ }

423+ }

424+ }

425+

426+ // --- Attachments, voice, and share-link plumbing ---

427+ val attachFailedMsg = stringResource(R.string.attachment_failed)

428+ val noCameraMsg = stringResource(R.string.no_camera_app)

429+ val noVoiceMsg = stringResource(R.string.no_voice_app)

430+ val voicePrompt = stringResource(R.string.voice_prompt)

431+ val linkCopiedMsg = stringResource(R.string.link_copied)

432+ val ttsUnavailableMsg = stringResource(R.string.tts_unavailable)

433+

434+ // Count of picks currently being read + base64-encoded off the main thread, so the

435+ // composer can show a staging placeholder immediately (chips only materialize once done).

436+ // Backed by the ViewModel (vm.stagingCount / vm.stagingFileTotal) so the staging state

437+ // survives a configuration change: the encode work runs on viewModelScope (which

438+ // survives rotation), so the counters must live on the VM too — remember { mutableStateOf

439+ // } in the composable would reset to 0 on rotation and lose the staging chip mid-encode.

440+ val stagingCount by vm.stagingCount.collectAsStateWithLifecycle()

441+ val stagingFileTotal by vm.stagingFileTotal.collectAsStateWithLifecycle()

442+

443+ // Convert each picked Uri to a base64 attachment on the VM's scope (survives rotation),

444+ // honoring the per-prompt count cap and surfacing per-file errors via the VM's errorEvents.

445+ fun stageUris(uris: List<Uri>) {

446+ vm.stageUris(uris, appContext)

447+ }

448+

449+ val photoPicker = rememberLauncherForActivityResult(

450+ ActivityResultContracts.PickMultipleVisualMedia(NetworkConfig.maxAttachments),

451+ ) { uris -> stageUris(uris) }

452+

453+ val filePicker = rememberLauncherForActivityResult(

454+ ActivityResultContracts.GetMultipleContents(),

455+ ) { uris -> stageUris(uris) }

456+

457+ // Uri survives a config change mid-capture so the TakePicture result still resolves.

458+ var pendingCaptureUri by rememberSaveable { mutableStateOf<Uri?>(null) }

459+ val cameraLauncher = rememberLauncherForActivityResult(

460+ ActivityResultContracts.TakePicture(),

461+ ) { success ->

462+ val uri = pendingCaptureUri

463+ pendingCaptureUri = null

464+ if (success && uri != null) stageUris(listOf(uri))

465+ }

466+

467+ val voiceLauncher = rememberLauncherForActivityResult(

468+ ActivityResultContracts.StartActivityForResult(),

469+ ) { result ->

470+ if (result.resultCode == Activity.RESULT_OK) {

471+ val spoken = result.data

472+ ?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)

473+ ?.firstOrNull()

474+ ?.takeIf { it.isNotBlank() }

475+ if (spoken != null) {

476+ // Append to the existing draft rather than replacing, so dictation adds to

477+ // whatever the user already typed.

478+ val current = vm.draft.value

479+ val combined = if (current.isBlank()) spoken else "$current $spoken"

480+ vm.updateDraft(combined.take(NetworkConfig.maxDraftLengthChars))

481+ }

482+ }

483+ }

484+

485+ fun launchCamera() {

486+ val uri = newCameraCaptureUri(appContext)

487+ if (uri == null) {

488+ scope.launch { snackbar.showSnackbar(attachFailedMsg) }

489+ return

490+ }

491+ pendingCaptureUri = uri

492+ runCatching { cameraLauncher.launch(uri) }

493+ .onFailure { pendingCaptureUri = null; scope.launch { snackbar.showSnackbar(noCameraMsg) } }

494+ }

495+

496+ fun launchVoice() {

497+ val intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {

498+ putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM)

499+ putExtra(RecognizerIntent.EXTRA_PROMPT, voicePrompt)

500+ }

501+ runCatching { voiceLauncher.launch(intent) }

502+ .onFailure { scope.launch { snackbar.showSnackbar(noVoiceMsg) } }

503+ }

504+

505+ // A freshly-created share link is copied to the clipboard so the user can paste it right away.

506+ LaunchedEffect(Unit) {

507+ vm.shareLinkEvents.collect { url ->

508+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_share), url)

509+ snackbar.showSnackbar(linkCopiedMsg)

510+ }

511+ }

512+

513+ // Navigate to a session freshly branched from a message (branchFrom), once it's created.

514+ // Keyed on Unit (like the sibling one-shot collectors above): keying on the onOpenSession

515+ // lambda would cancel/restart this collector whenever the lambda's identity changes, risking

516+ // a dropped branch-navigation event in the gap. The lambda is wrapped in rememberUpdatedState

517+ // so the Unit-keyed collector invokes the LATEST lambda instead of the one captured at first

518+ // composition — a latent footgun if a future change makes onOpenSession depend on current

519+ // Compose state (e.g. pane-aware routing). The collector itself is never cancelled, so no

520+ // event is dropped.

521+ val branchedMsg = stringResource(R.string.branch_created)

522+ val currentOnOpenSession by rememberUpdatedState(onOpenSession)

523+ LaunchedEffect(Unit) {

524+ vm.branchEvents.collect { newId ->

525+ showToast(shareContext, branchedMsg)

526+ currentOnOpenSession?.invoke(newId)

527+ }

528+ }

529+

530+ // Stage images shared into the app (via the system share sheet) as attachments.

531+ // Keyed on pendingSharedMedia (not Unit) so the effect re-fires when new media arrives

532+ // while this ChatScreen is already composed — which happens in two-pane mode, where the

533+ // detail ChatScreen is persistent (keyed on sessionId) and a LaunchedEffect(Unit) would

534+ // only fire on first composition. consumePendingSharedMedia() atomically drains the

535+ // pending list (compareAndSet to empty), so re-firing on the now-empty value is a no-op.

536+ val pendingSharedMedia by container.pendingSharedMedia.collectAsStateWithLifecycle()

537+ LaunchedEffect(pendingSharedMedia) {

538+ val shared = container.consumePendingSharedMedia()

539+ if (shared.isNotEmpty()) stageUris(shared.map { Uri.parse(it) })

540+ }

541+

542+ fun doSend() {

543+ if (vm.send(draft)) {

544+ // TextHandleMove (a light tick) is semantically right for a send commit;

545+ // LongPress is reserved for long-press/swipe gestures.

546+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

547+ }

548+ }

549+

550+ // The in-conversation search bar is an AnimatedVisibility overlay (not a Dialog/Dropdown),

551+ // so it has no built-in back handling. Close it first on back press, before the exit

552+ // confirmation or navigation-away can fire — standard Android "back closes the topmost

553+ // overlay" behavior. Declared before the exit-confirm BackHandler so it takes precedence

554+ // when both could be active (search open + a run in progress).

555+ BackHandler(enabled = searchActive) {

556+ searchActive = false

557+ chatSearch = ""

558+ }

559+

560+ BackHandler(enabled = running && !showModelPicker && !showAgentPicker && !showCommandPicker && !searchActive) { showExitConfirm = true }

561+

562+ Scaffold(

563+ // Hardware-keyboard shortcuts (tablets / DeX / Chromebooks): Ctrl+K opens the command

564+ // palette; Escape closes it, or stops a run. onPreviewKeyEvent on the Scaffold root sees

565+ // events before the focused text field, but only Ctrl+K / Escape are consumed so normal

566+ // typing (and the composer's own Enter-to-send handling) is untouched.

567+ modifier = Modifier.onPreviewKeyEvent { ev ->

568+ if (ev.type != KeyEventType.KeyDown) return@onPreviewKeyEvent false

569+ when {

570+ ev.isCtrlPressed && ev.key == Key.K -> { showPalette = true; true }

571+ // Ctrl+F opens in-conversation search (the standard find shortcut), focusing

572+ // the field so the user can type immediately.

573+ ev.isCtrlPressed && ev.key == Key.F -> { searchActive = true; true }

574+ ev.key == Key.Escape && showPalette -> { showPalette = false; true }

575+ ev.key == Key.Escape && searchActive -> { searchActive = false; chatSearch = ""; true }

576+ ev.key == Key.Escape && running && !showExitConfirm -> {

577+ vm.abort(); true

578+ }

579+ else -> false

580+ }

581+ },

582+ topBar = {

583+ TopAppBar(

584+ title = {

585+ val changeLabel = stringResource(R.string.change_model_agent)

586+ // The subtitle reads "model · agent", so tapping the title offers *both*

587+ // — a small menu picks which picker to open. Previously the tap went

588+ // straight to the model picker, leaving the agent changeable only via

589+ // the overflow menu despite the title implying otherwise.

590+ Box {

591+ Row(

592+ // mergeDescendants so TalkBack reads the title/subtitle Texts as one

593+ // node; the click label rides on `clickable` (onClickLabel) instead of

594+ // an explicit contentDescription, which would have SUPPRESSED the child

595+ // Texts and announced only "Change model and agent".

596+ modifier = Modifier

597+ .clickable(

598+ role = Role.Button,

599+ onClickLabel = changeLabel,

600+ ) { showTitleMenu = true }

601+ .semantics(mergeDescendants = true) {},

602+ verticalAlignment = Alignment.CenterVertically,

603+ ) {

604+ Column(modifier = Modifier.weight(1f, fill = false)) {

605+ // maxLines=1 + Ellipsis so a long session title can't wrap and

606+ // push the top bar to multiple lines, shifting the whole layout.

607+ Text(

608+ sessionTitle ?: sessionLabel,

609+ maxLines = 1,

610+ overflow = TextOverflow.Ellipsis,

611+ )

612+ Text(

613+ subtitle,

614+ style = MaterialTheme.typography.labelSmall,

615+ color = MaterialTheme.colorScheme.onSurfaceVariant,

616+ maxLines = 1,

617+ overflow = TextOverflow.Ellipsis,

618+ )

619+ }

620+ // Always show the affordance so the title reads as tappable even when

621+ // the model catalog failed to load (models empty). Without it the title

622+ // is indistinguishable from plain text and the pickers are effectively

623+ // undiscoverable — and the dropdown items already disable themselves

624+ // while a catalog is loading or unavailable.

625+ Icon(

626+ Icons.Filled.KeyboardArrowDown,

627+ contentDescription = null,

628+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

629+ modifier = Modifier.size(20.dp),

630+ )

631+ }

632+ DropdownMenu(expanded = showTitleMenu, onDismissRequest = { showTitleMenu = false }) {

633+ DropdownMenuItem(

634+ text = { Text(stringResource(R.string.palette_switch_model)) },

635+ enabled = !modelsLoading || models.isNotEmpty(),

636+ onClick = { showTitleMenu = false; showModelPicker = true },

637+ )

638+ DropdownMenuItem(

639+ text = { Text(stringResource(R.string.palette_choose_agent)) },

640+ enabled = !agentsLoading || agents.isNotEmpty(),

641+ onClick = { showTitleMenu = false; showAgentPicker = true },

642+ )

643+ }

644+ }

645+ },

646+ navigationIcon = {

647+ IconButton(onClick = {

648+ if (running) showExitConfirm = true else onBack()

649+ }) {

650+ Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = stringResource(R.string.back))

651+ }

652+ },

653+ actions = {

654+ // At-a-glance run status in the top bar. When the user is scrolled

655+ // up (jump-to-latest FAB visible), the input-bar Stop button and the

656+ // trailing "working…" row are off-screen, so a top-bar spinner is the

657+ // only signal the agent is still working.

658+ if (running) {

659+ val workingLabel = stringResource(R.string.working)

660+ CircularProgressIndicator(

661+ Modifier.size(18.dp).semantics { contentDescription = workingLabel },

662+ strokeWidth = 2.dp,

663+ )

664+ }

665+ // Manual refresh: forces an SSE reconnect, which re-seeds messages

666+ // from REST. A recovery path when the stream silently drops and the

667+ // auto-reconnect re-seed is slow or fails. Shows a brief spinner as

668+ // immediate tap feedback — the SSE reconnect may not visibly change

669+ // the connection state when already Connected, so without it the tap

670+ // appears to do nothing. Disabled while a run is active: a mid-run

671+ // refresh forces a reconnect that can interrupt the streaming reply,

672+ // and the working spinner already signals "wait" — the recovery path

673+ // is only needed when nothing is actively streaming.

674+ val refreshLabel = stringResource(R.string.refresh)

675+ IconButton(

676+ onClick = { vm.refreshMessages() },

677+ enabled = activeConnection != null && !refreshing && !running,

678+ ) {

679+ if (refreshing) {

680+ CircularProgressIndicator(

681+ Modifier.size(18.dp).semantics { contentDescription = refreshLabel },

682+ strokeWidth = 2.dp,

683+ )

684+ } else {

685+ Icon(Icons.Filled.Refresh, contentDescription = refreshLabel)

686+ }

687+ }

688+ // Overflow menu consolidates the less-frequent actions (share,

689+ // commands, agent, model, rename, delete) so the top bar stays

690+ // scannable on narrow phones — previously 5 icons crowded the bar

691+ // alongside the back button and tappable title. Catalog-loading

692+ // spinners stay inline (next to the overflow) so a load state is

693+ // visible without opening the menu.

694+ val moreLabel = stringResource(R.string.more)

695+ val loadingLabel = stringResource(R.string.loading)

696+ val shareLabel = stringResource(R.string.share_conversation)

697+ val copyAsMarkdownLabel = stringResource(R.string.copy_as_markdown)

698+ val shareAsJsonLabel = stringResource(R.string.share_as_json)

699+ val copyAsJsonLabel = stringResource(R.string.copy_as_json)

700+ val commandsLabel = stringResource(R.string.commands)

701+ val renameLabel = stringResource(R.string.rename_session_chat)

702+ val deleteLabel = stringResource(R.string.delete_session_chat)

703+ val createShareLabel = stringResource(R.string.create_share_link)

704+ val copyShareLabel = stringResource(R.string.copy_share_link)

705+ val stopShareLabel = stringResource(R.string.stop_sharing)

706+ val summarizeLabel = stringResource(R.string.summarize_conversation)

707+ val initLabel = stringResource(R.string.generate_agents_md)

708+ val shellLabel = stringResource(R.string.run_shell_command)

709+ Box {

710+ IconButton(onClick = { showOverflowMenu = true }) {

711+ Icon(Icons.Filled.MoreVert, contentDescription = moreLabel)

712+ }

713+ DropdownMenu(

714+ expanded = showOverflowMenu,

715+ onDismissRequest = { showOverflowMenu = false },

716+ ) {

717+ DropdownMenuItem(

718+ text = { Text(shareLabel) },

719+ enabled = hasMessages,

720+ onClick = {

721+ showOverflowMenu = false

722+ scope.launch {

723+ val md = withContext(Dispatchers.Default) {

724+ buildConversationMarkdown(vm.messages.value, sessionTitle)

725+ }

726+ val send = android.content.Intent(android.content.Intent.ACTION_SEND).apply {

727+ type = "text/markdown"

728+ putExtra(android.content.Intent.EXTRA_SUBJECT, sessionTitle ?: defaultShareSubject)

729+ putExtra(android.content.Intent.EXTRA_TEXT, md)

730+ }

731+ runCatchingCancellable { shareContext.startActivity(android.content.Intent.createChooser(send, shareLabel)) }

732+ .onFailure { showToast(shareContext, shareContext.getString(R.string.no_share_app)) }

733+ }

734+ },

735+ )

736+ // Copy the whole conversation as Markdown to the clipboard, so a

737+ // user can paste into another app without the share-sheet round-trip.

738+ DropdownMenuItem(

739+ text = { Text(copyAsMarkdownLabel) },

740+ enabled = hasMessages,

741+ onClick = {

742+ showOverflowMenu = false

743+ scope.launch {

744+ val md = withContext(Dispatchers.Default) {

745+ buildConversationMarkdown(vm.messages.value, sessionTitle)

746+ }

747+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_message), md)

748+ }

749+ },

750+ )

751+ // Lossless JSON share: the full List<MessageWithParts> serialized with

752+ // the shared OpencodeJson, so tool outputs, file sources, and reasoning

753+ // survive verbatim (the Markdown export truncates/summarizes them).

754+ DropdownMenuItem(

755+ text = { Text(shareAsJsonLabel) },

756+ enabled = hasMessages,

757+ onClick = {

758+ showOverflowMenu = false

759+ scope.launch {

760+ val json = withContext(Dispatchers.Default) {

761+ buildConversationJson(vm.messages.value)

762+ }

763+ val send = android.content.Intent(android.content.Intent.ACTION_SEND).apply {

764+ type = "application/json"

765+ putExtra(android.content.Intent.EXTRA_SUBJECT, sessionTitle ?: defaultShareSubject)

766+ putExtra(android.content.Intent.EXTRA_TEXT, json)

767+ }

768+ runCatchingCancellable { shareContext.startActivity(android.content.Intent.createChooser(send, shareAsJsonLabel)) }

769+ .onFailure { showToast(shareContext, shareContext.getString(R.string.no_share_app)) }

770+ }

771+ },

772+ )

773+ DropdownMenuItem(

774+ text = { Text(copyAsJsonLabel) },

775+ enabled = hasMessages,

776+ onClick = {

777+ showOverflowMenu = false

778+ scope.launch {

779+ val json = withContext(Dispatchers.Default) {

780+ buildConversationJson(vm.messages.value)

781+ }

782+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_message), json)

783+ }

784+ },

785+ )

786+ DropdownMenuItem(

787+ text = { Text(commandsLabel) },

788+ enabled = !commandsLoading || commands.isNotEmpty(),

789+ onClick = { showOverflowMenu = false; showCommandPicker = true },

790+ )

791+ DropdownMenuItem(

792+ text = { Text(stringResource(R.string.keyboard_shortcuts)) },

793+ onClick = { showOverflowMenu = false; showShortcutsDialog = true },

794+ )

795+ DropdownMenuItem(

796+ text = { Text(stringResource(R.string.find_in_conversation)) },

797+ onClick = {

798+ showOverflowMenu = false

799+ searchActive = true

800+ // Focus is requested by the LaunchedEffect(searchActive)

801+ // below, which waits for the search field to be composed

802+ // before requesting focus (calling requestFocus here would

803+ // target a field that isn't in the composition yet).

804+ },

805+ )

806+ androidx.compose.material3.HorizontalDivider()

807+ // Session sharing: create a public link, copy an existing one, or revoke it.

808+ if (shareUrl == null) {

809+ DropdownMenuItem(

810+ text = { Text(createShareLabel) },

811+ enabled = hasMessages,

812+ onClick = { showOverflowMenu = false; vm.shareSession() },

813+ )

814+ } else {

815+ DropdownMenuItem(

816+ text = { Text(copyShareLabel) },

817+ onClick = {

818+ showOverflowMenu = false

819+ shareUrl?.let {

820+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_share), it)

821+ scope.launch { snackbar.showSnackbar(linkCopiedMsg) }

822+ }

823+ },

824+ )

825+ DropdownMenuItem(

826+ text = { Text(stopShareLabel) },

827+ onClick = { showOverflowMenu = false; vm.unshareSession() },

828+ )

829+ }

830+ DropdownMenuItem(

831+ text = { Text(summarizeLabel) },

832+ enabled = hasMessages && !running,

833+ onClick = { showOverflowMenu = false; showSummarizeConfirm = true },

834+ )

835+ DropdownMenuItem(

836+ text = { Text(initLabel) },

837+ enabled = !running,

838+ onClick = { showOverflowMenu = false; showInitConfirm = true },

839+ )

840+ DropdownMenuItem(

841+ text = { Text(shellLabel) },

842+ enabled = !running,

843+ onClick = { showOverflowMenu = false; showShellDialog = true },

844+ )

845+ androidx.compose.material3.HorizontalDivider()

846+ DropdownMenuItem(

847+ text = { Text(renameLabel) },

848+ onClick = { showOverflowMenu = false; showRenameDialog = true },

849+ )

850+ DropdownMenuItem(

851+ text = { Text(deleteLabel, color = MaterialTheme.colorScheme.error) },

852+ onClick = { showOverflowMenu = false; showDeleteDialog = true },

853+ )

854+ }

855+ // While a catalog is initially loading (empty list + loading flag),

856+ // show a tiny inline spinner beside the overflow so the user can see

857+ // a load is in progress without opening the menu. Once loaded the

858+ // spinner disappears; the menu items are always enabled (tapping a

859+ // picker with no items shows the "no models/agents/commands" state).

860+ val catalogLoading = (commandsLoading && commands.isEmpty()) ||

861+ (agentsLoading && agents.isEmpty()) ||

862+ (modelsLoading && models.isEmpty())

863+ if (catalogLoading) {

864+ CircularProgressIndicator(

865+ Modifier

866+ .align(Alignment.TopEnd)

867+ .size(10.dp)

868+ .semantics { contentDescription = loadingLabel },

869+ strokeWidth = 1.dp,

870+ )

871+ }

872+ }

873+ },

874+ )

875+ },

876+ snackbarHost = { SnackbarHost(snackbar) },

877+ bottomBar = {

878+ val queuedFollowUp by vm.queuedFollowUp.collectAsStateWithLifecycle()

879+ val todoPlan by vm.todoPlan.collectAsStateWithLifecycle()

880+ val queuedOffline by vm.outbox.collectAsStateWithLifecycle()

881+ val outboxSending by container.outboxSending.collectAsStateWithLifecycle()

882+ Column {

883+ // Pinned above the composer so the agent's plan and progress stay visible

884+ // while scrolled up mid-run; renders nothing when there's no plan.

885+ TodoPlanBar(todoPlan)

886+ val bannerMotion = rememberVisibilityTransitions()

887+ AnimatedVisibility(

888+ visible = reverted,

889+ enter = bannerMotion.enter,

890+ exit = bannerMotion.exit,

891+ ) {

892+ RevertBanner(

893+ diff = revertDiff,

894+ isEditing = editing,

895+ onUndo = { vm.unrevert() },

896+ )

897+ }

898+ AnimatedVisibility(

899+ visible = queuedOffline.isNotEmpty(),

900+ enter = bannerMotion.enter,

901+ exit = bannerMotion.exit,

902+ ) {

903+ OutboxBanner(

904+ count = queuedOffline.size,

905+ sending = outboxSending,

906+ onFlush = { vm.flushQueued() },

907+ onDiscard = { vm.discardAllQueued() },

908+ )

909+ }

910+ AnimatedVisibility(

911+ visible = pendingQuote != null,

912+ enter = bannerMotion.enter,

913+ exit = bannerMotion.exit,

914+ ) {

915+ pendingQuote?.let { QuoteReplyBanner(it, onCancel = { vm.cancelQuoteReply() }) }

916+ }

917+ ChatInputBar(

918+ value = draft,

919+ onValueChange = vm::updateDraft,

920+ running = running,

921+ aborting = aborting,

922+ enabled = activeConnection != null,

923+ sendOnEnter = sendOnEnter,

924+ onSend = ::doSend,

925+ onAbort = { vm.abort() },

926+ queuedFollowUp = queuedFollowUp,

927+ onQueueFollowUp = vm::queueFollowUp,

928+ onCancelQueue = { vm.queueFollowUp("") },

929+ focusRequester = inputFocusRequester,

930+ attachments = attachments,

931+ staging = stagingCount > 0,

932+ stagingFileCount = stagingFileTotal,

933+ onRemoveAttachment = vm::removeAttachment,

934+ onPickPhoto = {

935+ photoPicker.launch(

936+ PickVisualMediaRequest(ActivityResultContracts.PickVisualMedia.ImageOnly),

937+ )

938+ },

939+ onPickFile = { filePicker.launch("*/*") },

940+ onCamera = { launchCamera() },

941+ onVoice = { launchVoice() },

942+ onPasteImage = { stageUris(it) },

943+ commands = commands,

944+ onRunCommand = { cmd ->

945+ vm.runCommand(cmd)

946+ // Clear the draft so the typed /prefix doesn't linger after the

947+ // command fires (the command picker confirmation, if any, is

948+ // handled inside runCommand).

949+ vm.updateDraft("")

950+ },

951+ )

952+ }

953+ },

954+ ) { padding ->

955+ // Collect messages inside the content lambda so streaming token updates

956+ // recompose only this subtree, not the top bar / input bar / 20+ other

957+ // state reads in the ChatScreen body.

958+ val messages by vm.messages.collectAsStateWithLifecycle()

959+ val optimisticStatuses by vm.optimisticStatuses.collectAsStateWithLifecycle()

960+ val listState = rememberLazyListState()

961+ val contentScope = rememberCoroutineScope()

962+ val timeTick = rememberRelativeTimeTick()

963+ // Dismiss the soft keyboard when the user scrolls the message list, a standard Android

964+ // chat affordance for reading while the IME is open. Watching isScrollInProgress via

965+ // snapshotFlow avoids wiring a nested scroll connection and fires on any scroll gesture.

966+ val keyboardController = androidx.compose.ui.platform.LocalSoftwareKeyboardController.current

967+ androidx.compose.runtime.LaunchedEffect(listState) {

968+ androidx.compose.runtime.snapshotFlow { listState.isScrollInProgress }

969+ .distinctUntilChanged()

970+ .collect { scrolling -> if (scrolling) keyboardController?.hide() }

971+ } // Group messages by day and interleave date separators so a long conversation

972+ // has visual "Today"/"Yesterday"/date breaks. Computed once per messages

973+ // emission (memoized) so a scroll-induced recomposition doesn't re-scan. Lives

974+ // outside the PullToRefreshBox so the auto-scroll effects below can reference

975+ // the same list the LazyColumn renders (separators shift the indices vs. the

976+ // raw messages list, so scroll targets must be in listItems space).

977+ val todayLabel = stringResource(R.string.today)

978+ val yesterdayLabel = stringResource(R.string.yesterday)

979+ // In-conversation search: when active, narrow to messages whose text contains the query.

980+ // Computed on the filtered set so day separators still align with the visible messages.

981+ // Debounced + off-main-thread so a keystroke-by-keystroke filter walk over a long

982+ // conversation (with many tool parts whose state stringification is non-trivial)

983+ // doesn't jank the UI. produceState yields the empty list immediately and publishes

984+ // the filtered result once the debounce settles.

985+ val searchQuery = chatSearch.trim()

986+ // When no search is active, skip the produceState indirection entirely and use the

987+ // messages list directly. produceState keyed on (messages, searchQuery) re-launches

988+ // its coroutine on every messages emission (every streamed token) even when the

989+ // query is empty — the body just re-assigns `value = messages`, but the coroutine

990+ // churn (launch + cancel + state write) ~20x/sec is pure overhead. Using `messages`

991+ // directly when there's no search avoids that, and `buildMessageListItems` keys its

992+ // own remember on the resulting list identity either way.

993+ val searchMessages: List<MessageWithParts> = if (searchQuery.isEmpty()) {

994+ messages

995+ } else {

996+ // Capture the messages list via rememberUpdatedState so the latest list is read

997+ // when the debounce completes, WITHOUT re-launching the produceState coroutine on

998+ // every messages emission. Keying produceState on `messages` restarts the debounce

999+ // delay from zero on every streamed token (~20×/sec); if tokens arrive faster than

1000+ // the debounce interval the filter never runs and search shows "no matches" for the

1001+ // entire run. Keying only on `searchQuery` lets the debounce settle once per query

1002+ // while still filtering against the most recent list.

1003+ val currentMessages by rememberUpdatedState(messages)

1004+ val filtered by produceState(

1005+ initialValue = emptyList(),

1006+ searchQuery,

1007+ ) {

1008+ // Debounce: wait for the user to stop typing before running the filter,

1009+ // so each keystroke doesn't kick off a fresh scan.

1010+ kotlinx.coroutines.delay(NetworkConfig.chatSearchDebounceMs)

1011+ // Run the filter off the main thread — the walk stringifies tool state

1012+ // and scans every part of every message, which is non-trivial work for a

1013+ // long conversation.

1014+ value = withContext(Dispatchers.Default) {

1015+ currentMessages.filter { m ->

1016+ m.parts.any { p ->

1017+ when (p) {

1018+ is TextPart -> p.text.contains(searchQuery, ignoreCase = true)

1019+ is ReasoningPart -> p.text.contains(searchQuery, ignoreCase = true)

1020+ is ToolPart -> {

1021+ // Match the tool name plus its running/completed/error text and the

1022+ // stringified input, so searching for an error string or a file the

1023+ // tool touched actually finds the message it appeared in.

1024+ p.tool.contains(searchQuery, ignoreCase = true) ||

1025+ (p.state is ToolRunning && p.state.title?.contains(searchQuery, ignoreCase = true) == true) ||

1026+ (p.state is ToolCompleted && (p.state.title?.contains(searchQuery, ignoreCase = true) == true ||

1027+ p.state.output?.contains(searchQuery, ignoreCase = true) == true)) ||

1028+ (p.state is ToolError && p.state.error?.contains(searchQuery, ignoreCase = true) == true) ||

1029+ p.state.inputElement()?.toString()?.contains(searchQuery, ignoreCase = true) == true

1030+ }

1031+ is FilePart -> p.filename?.contains(searchQuery, ignoreCase = true) == true ||

1032+ p.sourcePath?.contains(searchQuery, ignoreCase = true) == true

1033+ else -> false

1034+ }

1035+ }

1036+ }

1037+ }

1038+ }

1039+ filtered

1040+ }

1041+ // Keep the focused-match index in range as the query (and thus the match set) changes.

1042+ // A new query resets to the first match (keyed on searchQuery alone so any change —

1043+ // even one that still yields enough matches — jumps to index 0 rather than carrying

1044+ // the old index over to a semantically unrelated message). A shrunk set clamps to

1045+ // the last valid index (keyed on size so a content refresh that shrinks the matches

1046+ // without a query change doesn't leave searchPos out of range).

1047+ LaunchedEffect(searchQuery) {

1048+ searchPos = 0

1049+ }

1050+ LaunchedEffect(searchMessages.size) {

1051+ if (searchPos >= searchMessages.size) searchPos = 0

1052+ }

1053+ val listItems = remember(searchMessages, todayLabel, yesterdayLabel) {

1054+ buildMessageListItems(searchMessages, todayLabel, yesterdayLabel)

1055+ }

1056+ // listItems is a plain (non-snapshot) local, rebuilt each recomposition. The

1057+ // derivedStateOf and snapshotFlow lambdas below are created once (keyless

1058+ // remember / LaunchedEffect(Unit)); reading `listItems` directly inside them

1059+ // would capture the first composition's list — which is empty, since `messages`

1060+ // starts empty — freezing it forever. That pinned isPinnedToBottom at true and

1061+ // AutoScrollSignal.size at 0, breaking streaming auto-scroll and the

1062+ // jump-to-latest FAB. rememberUpdatedState hands those lambdas a stable State

1063+ // whose value tracks the latest list.

1064+ val currentListItems by rememberUpdatedState(listItems)

1065+

1066+ // New-content signal for the jump-to-latest FAB: counts how many new items arrived

1067+ // while the user was scrolled away from the bottom, cleared once they return. A count

1068+ // (vs. a bare dot) tells the user how much they missed at a glance.

1069+ // rememberSaveable (not plain remember) so the badge count survives rotation: plain

1070+ // remember resets to 0 on recreation, hiding the "new content" signal even though new

1071+ // messages are still arriving. Int is Bundle-savable.

1072+ var newContentCount by rememberSaveable { mutableIntStateOf(0) }

1073+

1074+ val isPinnedToBottom by remember {

1075+ derivedStateOf {

1076+ val lastVisible = listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index ?: -1

1077+ // When a run is active, the LazyColumn has one trailing "__typing"

1078+ // item after the last list item. Account for it so "pinned to bottom"

1079+ // includes the working indicator — otherwise the pin check targets

1080+ // listItems.lastIndex, the typing row sits just below the viewport,

1081+ // and the user never sees the progress indicator even when pinned.

1082+ val items = currentListItems

1083+ val effectiveLast = if (running) items.size else items.lastIndex

1084+ lastVisible >= effectiveLast || items.isEmpty()

1085+ }

1086+ }

1087+

1088+ // Jump to the newest message once, when the conversation first loads. Guarded by a

1089+ // saveable one-shot flag so it doesn't re-fire on recomposition after a config change

1090+ // (rotation) — rememberLazyListState restores the user's scroll offset, and an

1091+ // unconditional scrollToItem here would clobber it, snapping them back to the bottom.

1092+ var didInitialScroll by rememberSaveable { mutableStateOf(false) }

1093+ LaunchedEffect(listItems.isNotEmpty()) {

1094+ if (listItems.isNotEmpty() && !didInitialScroll) {

1095+ // When a run is active the LazyColumn has a trailing "__typing" row at

1096+ // listItems.size; target it (not listItems.lastIndex) so deep-linking into a

1097+ // running session lands truly pinned to bottom and streaming auto-scroll engages.

1098+ listState.scrollToItem(if (running) listItems.size else listItems.lastIndex)

1099+ didInitialScroll = true

1100+ }

1101+ }

1102+

1103+ // When a run starts, the LazyColumn gains a trailing "__typing" row, so

1104+ // effectiveLast jumps from listItems.lastIndex to listItems.size and the

1105+ // isPinnedToBottom check flips to false the instant you send — freezing

1106+ // auto-scroll. If the user was pinned to the last item just before the run

1107+ // began, bring the typing row into view so the pin (and streaming follow) is

1108+ // preserved. Guard on the raw last-visible index (isPinnedToBottom has already

1109+ // recomputed to false by now) so we don't scroll when the user had scrolled up.

1110+ LaunchedEffect(running) {

1111+ if (running && listItems.isNotEmpty()) {

1112+ val lastVisible = listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index ?: -1

1113+ if (lastVisible >= listItems.lastIndex) {

1114+ runCatchingCancellable { listState.animateScrollToItem(listItems.size) }

1115+ }

1116+ }

1117+ }

1118+

1119+ // Scroll the focused search match into view whenever the user steps through results with

1120+ // the up/down arrows. Resolves the filtered message to its slot in listItems (which

1121+ // includes date separators) and animates there.

1122+ //

1123+ // Keyed ONLY on searchPos and searchQuery (not listItems): a bare listItems key re-keys

1124+ // on every streamed token (the list is rebuilt per snapshot), which re-fires this effect

1125+ // ~20×/sec during an active stream — re-scrolling to the focused match on every token

1126+ // and making it impossible to browse other matches with the up/down arrows while content

1127+ // is streaming. snapshotFlow (reading currentListItems, a rememberUpdatedState) waits for

1128+ // the target to appear without re-keying the effect on every list change, mirroring the

1129+ // focusedMessageId pattern below.

1130+ LaunchedEffect(searchPos, searchQuery) {

1131+ if (!searchActive || searchQuery.isEmpty()) return@LaunchedEffect

1132+ val target = searchMessages.getOrNull(searchPos) ?: return@LaunchedEffect

1133+ val targetId = target.info.id

1134+ val index = snapshotFlow {

1135+ currentListItems.indexOfFirst {

1136+ it is MessageListItem.Message && it.message.info.id == targetId

1137+ }

1138+ }.first { it >= 0 }

1139+ runCatchingCancellable { listState.animateScrollToItem(index) }

1140+ }

1141+

1142+ // Global-search deep link: scroll to and briefly highlight the matched message. The

1143+ // focus id is threaded through the chat route from GlobalSearchScreen. The highlight

1144+ // clears itself after a short delay so the user can re-read the surrounding context

1145+ // without a persistent marker. Runs once per focusMessageId (cleared on consume).

1146+ //

1147+ // Keyed ONLY on focusedMessageId (not listItems): a bare listItems key re-keys on every

1148+ // streamed token (the list is rebuilt per snapshot), which cancels the 2.5s delay before

1149+ // it can clear the highlight — re-scrolling to the focus on every token and making an

1150+ // actively-streaming chat unreadable. snapshotFlow waits for the message to appear in the

1151+ // list (it may not be present on the first composition while messages load) without

1152+ // re-keying the effect on every list change.

1153+ // rememberSaveable (not plain remember) so the cleared null survives rotation:

1154+ // plain remember keyed on focusMessageId re-seeds the non-null nav arg on every

1155+ // recreation, re-firing this effect and yanking scroll back to the focus after the

1156+ // user already dismissed the highlight. String? is Bundle-savable.

1157+ var focusedMessageId by rememberSaveable(focusMessageId) { mutableStateOf(focusMessageId) }

1158+ val currentListItemsForFocus by rememberUpdatedState(listItems)

1159+ LaunchedEffect(focusedMessageId) {

1160+ val focus = focusedMessageId ?: return@LaunchedEffect

1161+ // Wait for the focused message to appear in the list, then resolve its index. A

1162+ // first-composition empty list (messages still loading) will populate as the seed

1163+ // arrives; snapshotFlow re-evaluates on each list change until the match is found.

1164+ val index = snapshotFlow {

1165+ currentListItemsForFocus.indexOfFirst {

1166+ it is MessageListItem.Message && it.message.info.id == focus

1167+ }

1168+ }.first { it >= 0 }

1169+ runCatchingCancellable { listState.animateScrollToItem(index) }

1170+ kotlinx.coroutines.delay(2500)

1171+ focusedMessageId = null

1172+ }

1173+

1174+ // Scroll to bottom when the IME opens and the user was already pinned to bottom, so the

1175+ // latest reply stays visible as the composer rises. Without this the IME can obscure the

1176+ // last message even though the user was reading it a moment ago. WindowInsets.ime is a

1177+ // @Composable property, so we read it inside a snapshotFlow registered in the composable

1178+ // scope; the flow re-emits whenever the IME inset changes (open/close transitions).

1179+ val density = androidx.compose.ui.platform.LocalDensity.current

1180+ var wasImeOpen by remember { mutableStateOf(false) }

1181+ val imeBottomPx = WindowInsets.ime.getBottom(density)

1182+ androidx.compose.runtime.LaunchedEffect(imeBottomPx, listItems.isNotEmpty(), isPinnedToBottom) {

1183+ if (listItems.isEmpty()) return@LaunchedEffect

1184+ val imeOpen = imeBottomPx > 0

1185+ // Scroll to bottom only on the open transition (not close) and only when the user

1186+ // was already pinned to bottom — otherwise we'd yank them out of a mid-history read.

1187+ val shouldScroll = imeOpen && !wasImeOpen && isPinnedToBottom

1188+ if (shouldScroll) {

1189+ runCatchingCancellable {

1190+ listState.animateScrollToItem(if (running) listItems.size else listItems.lastIndex)

1191+ }

1192+ }

1193+ wasImeOpen = imeOpen

1194+ }

1195+

1196+ LaunchedEffect(Unit) {

1197+ var prevSize = 0

1198+ var prevLen = 0

1199+ snapshotFlow {

1200+ // Track list size + the streaming length of the last part so we auto-scroll

1201+ // as content arrives, plus the pinned flag. A small data class with primitive

1202+ // fields avoids the per-frame boxing that Triple<Int,Int,Boolean> pays

1203+ // (snapshotFlow re-evaluates this lambda every snapshot), and reading only the

1204+ // last part's length is O(1) vs. a sumOf over every part. Covering reasoning

1205+ // and tool output — not just TextPart — keeps a pinned view following a long

1206+ // reasoning/tool block while it streams (previously it stalled at 0).

1207+ val lastLen = streamingContentLength(messages.lastOrNull()?.parts?.lastOrNull())

1208+ AutoScrollSignal(currentListItems.size, lastLen, isPinnedToBottom)

1209+ }.collect { signal ->

1210+ if (signal.pinned) {

1211+ // Back at the bottom: clear the new-content badge.

1212+ newContentCount = 0

1213+ if (signal.size > 0) {

1214+ // Scroll to the effective last index, including the trailing

1215+ // "__typing" row when a run is active so the working indicator

1216+ // is brought into view (not just the last message).

1217+ val items = currentListItems

1218+ val target = if (running) items.size else items.lastIndex

1219+ listState.scrollToItem(target)

1220+ }

1221+ } else if (signal.size > prevSize || signal.lastTextLength > prevLen) {

1222+ // Content arrived while scrolled up — increment the jump-to-latest badge.

1223+ // Only count whole new items (not per-token growth) so the number reflects

1224+ // new messages, not a token count.

1225+ if (signal.size > prevSize) newContentCount += signal.size - prevSize

1226+ else if (newContentCount == 0) newContentCount = 1

1227+ }

1228+ prevSize = signal.size

1229+ prevLen = signal.lastTextLength

1230+ }

1231+ }

1232+

1233+ CompositionLocalProvider(LocalRelativeTimeTick provides timeTick) {

1234+ // The bottomBar (ChatInputBar) already has imePadding, and the Scaffold's

1235+ // content padding accounts for the bottomBar's raised height, so the message

1236+ // list is already above the keyboard. Adding imePadding here would double-apply

1237+ // the IME inset and push messages too far up.

1238+ //

1239+ // BoxWithConstraints so the FABs and search bar can align to the capped (800dp)

1240+ // message list on wide screens instead of floating at the screen edges — on a

1241+ // tablet the list is a centered column, so edge-aligned FABs are visually detached.

1242+ // The horizontal margin below is applied to the FAB/search containers so they

1243+ // track the list's left/right edges.

1244+ androidx.compose.foundation.layout.BoxWithConstraints(

1245+ modifier = Modifier.fillMaxSize().padding(padding),

1246+ ) {

1247+ val screenMaxWidth = maxWidth

1248+ val listMaxWidth = NetworkConfig.chatContentMaxWidthDp.dp

1249+ // Horizontal margin between the capped list's edge and the screen edge (0 on

1250+ // screens narrower than the cap). Applied as start/end padding so the FABs and

1251+ // search bar sit at the list's edges, not the screen's.

1252+ val sideMargin = ((screenMaxWidth - listMaxWidth) / 2).coerceAtLeast(0.dp)

1253+ if (activeConnection == null) {

1254+ Column(

1255+ modifier = Modifier.align(Alignment.Center).padding(24.dp),

1256+ horizontalAlignment = Alignment.CenterHorizontally,

1257+ ) {

1258+ Text(

1259+ stringResource(R.string.not_connected),

1260+ color = MaterialTheme.colorScheme.error,

1261+ )

1262+ Spacer(Modifier.size(12.dp))

1263+ Button(onClick = { vm.reconnect() }, enabled = !reconnecting) {

1264+ if (reconnecting) {

1265+ CircularProgressIndicator(

1266+ Modifier.size(20.dp),

1267+ color = MaterialTheme.colorScheme.onPrimary,

1268+ strokeWidth = 2.dp,

1269+ )

1270+ } else {

1271+ Text(stringResource(R.string.reconnect))

1272+ }

1273+ }

1274+ }

1275+ } else {

1276+ val bannerVisible = !isOnline || connectionState != EventStreamClient.ConnectionState.Connected

1277+ // Measure the banner's actual height instead of hardcoding 44dp. At large

1278+ // accessibility font scales the banner's labelMedium text + spinner + Retry

1279+ // button exceed 44dp, so a fixed inset lets the first message hide behind it

1280+ // (the same hazard FileViewScreen's overlay calls out). onSizeChanged only

1281+ // fires while the banner is composed (visible), so gate the inset on

1282+ // bannerVisible and fall back to 44dp until the first measurement arrives.

1283+ var bannerHeightPx by remember { mutableIntStateOf(0) }

1284+ // Track the search bar height so the list's top padding can grow when search

1285+ // is active — otherwise a scrolled-to match lands at index 0, hidden behind

1286+ // the floating search bar (the "scroll-under-the-search-bar" bug).

1287+ var searchbarHeightPx by remember { mutableIntStateOf(0) }

1288+ val density = LocalDensity.current

1289+ val topPad = if (bannerVisible) {

1290+ if (bannerHeightPx > 0) {

1291+ with(density) { bannerHeightPx.toDp() } + 4.dp

1292+ } else {

1293+ 44.dp

1294+ }

1295+ } else {

1296+ 16.dp

1297+ } + if (searchActive && searchbarHeightPx > 0) {

1298+ with(density) { searchbarHeightPx.toDp() } + 4.dp

1299+ } else {

1300+ 0.dp

1301+ }

1302+ ConnectionBanner(

1303+ state = connectionState,

1304+ modifier = Modifier.align(Alignment.TopCenter).onSizeChanged { bannerHeightPx = it.height },

1305+ isOnline = isOnline,

1306+ // On a hard endpoint failure, retry by forcing an SSE reconnect (which

1307+ // re-seeds from REST). refreshMessages is the right recovery path

1308+ // when the connection is present but the stream died; reconnect()

1309+ // is the path when the whole connection is gone (handled by the

1310+ // separate "Not connected" state below).

1311+ onRetry = { vm.refreshMessages() },

1312+ // On an auth failure (401/403), retrying with the same bad credentials

1313+ // is futile — offer a one-tap path to edit the active profile's

1314+ // credentials instead of making the user hunt for the server list.

1315+ onEditCredentials = {

1316+ val profileId = activeConnection?.profile?.id

1317+ if (profileId != null) onEditProfile?.invoke(profileId)

1318+ },

1319+ reconnectAttempts = reconnectAttempts,

1320+ )

1321+ // Persistent inline error banner for a mid-conversation load failure.

1322+ // Unlike the one-shot snackbar (which fires once per streak then goes

1323+ // silent), this stays visible until the stream recovers, so a persistent

1324+ // outage doesn't read as "everything is fine" after the snackbar dismisses.

1325+ // Anchored at the top, below the connection banner, so it doesn't overlap

1326+ // the message list.

1327+ if (loadErrorInline && hasMessages) {

1328+ Surface(

1329+ color = MaterialTheme.colorScheme.errorContainer,

1330+ shape = MaterialTheme.shapes.small,

1331+ modifier = Modifier

1332+ .align(Alignment.TopCenter)

1333+ .padding(top = if (bannerVisible) topPad else 8.dp)

1334+ .padding(horizontal = 16.dp)

1335+ .semantics { liveRegion = LiveRegionMode.Polite },

1336+ ) {

1337+ Row(

1338+ modifier = Modifier.padding(horizontal = 12.dp, vertical = 8.dp),

1339+ verticalAlignment = Alignment.CenterVertically,

1340+ horizontalArrangement = Arrangement.spacedBy(8.dp),

1341+ ) {

1342+ Icon(

1343+ Icons.Filled.ErrorOutline,

1344+ contentDescription = null,

1345+ modifier = Modifier.size(16.dp),

1346+ tint = MaterialTheme.colorScheme.onErrorContainer,

1347+ )

1348+ Text(

1349+ stringResource(R.string.load_error_persistent),

1350+ style = MaterialTheme.typography.labelMedium,

1351+ color = MaterialTheme.colorScheme.onErrorContainer,

1352+ modifier = Modifier.weight(1f),

1353+ )

1354+ TextButton(

1355+ onClick = { vm.refreshMessages() },

1356+ contentPadding = androidx.compose.foundation.layout.PaddingValues(horizontal = 8.dp),

1357+ ) {

1358+ Text(stringResource(R.string.retry))

1359+ }

1360+ }

1361+ }

1362+ }

1363+ // Pull-to-refresh wraps ALL content states (loading, error, empty, list) so

1364+ // recovery is a swipe away everywhere — not just when the message list is

1365+ // populated. Previously PTR was only around the populated list, leaving the

1366+ // error/loading states reachable only via a button tap.

1367+ PullToRefreshBox(

1368+ isRefreshing = refreshing,

1369+ // Suppress the refresh action while a run is active: a mid-stream

1370+ // refresh forces an SSE reconnect that can interrupt the actively

1371+ // streaming reply (matching the top-bar refresh button, which is

1372+ // also disabled while running). The pull gesture still responds, but

1373+ // the release no-ops instead of triggering a disruptive re-seed.

1374+ onRefresh = { if (!running) vm.refreshMessages() },

1375+ // Cap width and center on large screens for readability — full-width

1376+ // bubbles stretch edge-to-edge on tablets, hurting line-length comfort.

1377+ modifier = Modifier.fillMaxSize().wrapContentWidth(Alignment.CenterHorizontally)

1378+ .widthIn(max = NetworkConfig.chatContentMaxWidthDp.dp),

1379+ ) {

1380+ // Reserve top space when the banner is visible so it doesn't overlap the

1381+ // first message / state content. (topPad computed above.)

1382+ if (loading && messages.isEmpty()) {

1383+ // Skeleton bubbles pre-structure the layout so the perceived load is faster

1384+ // than a bare centered spinner and the first real messages pop into an

1385+ // already-shaped list instead of a blank-then-pop.

1386+ ChatSkeleton(topPad = topPad)

1387+ } else if (loadError && messages.isEmpty()) {

1388+ // A failed load with nothing to show. Distinct from the empty

1389+ // conversation state below — the conversation isn't empty, it

1390+ // failed to load, and offering "Start a conversation" here is

1391+ // misleading. Offer a Retry instead, mirroring SessionListScreen.

1392+ Column(

1393+ modifier = Modifier.align(Alignment.Center).padding(top = topPad).padding(24.dp),

1394+ horizontalAlignment = Alignment.CenterHorizontally,

1395+ ) {

1396+ Text(

1397+ stringResource(R.string.load_messages_failed),

1398+ color = MaterialTheme.colorScheme.error,

1399+ )

1400+ Spacer(Modifier.size(12.dp))

1401+ Button(onClick = { vm.refreshMessages() }) {

1402+ Text(stringResource(R.string.retry))

1403+ }

1404+ // When the VM's retryWhen loop is actively retrying (loading is true

1405+ // on top of the error state), surface a small "retrying…" indicator so

1406+ // the user knows the system is working — without it, the static error

1407+ // + Retry button reads as "broken, tap to fix", and the user may not

1408+ // realize an automatic retry is already in progress.

1409+ if (loading) {

1410+ Spacer(Modifier.size(12.dp))

1411+ val retryingLabel = stringResource(R.string.retrying_ellipsis)

1412+ Row(verticalAlignment = Alignment.CenterVertically) {

1413+ CircularProgressIndicator(

1414+ Modifier.size(14.dp),

1415+ strokeWidth = 2.dp,

1416+ )

1417+ Text(

1418+ retryingLabel,

1419+ style = MaterialTheme.typography.labelSmall,

1420+ color = MaterialTheme.colorScheme.onSurfaceVariant,

1421+ modifier = Modifier.padding(start = 6.dp),

1422+ )

1423+ }

1424+ }

1425+ }

1426+ } else if (messages.isEmpty() && running) {

1427+ // A run just started but no parts have arrived yet — the empty list with

1428+ // only the trailing "working…" row looks broken. Reuse the skeleton bubbles

1429+ // from the initial-load branch so the perceived start latency is lower and

1430+ // the first real assistant part pops into an already-shaped list.

1431+ ChatSkeleton(topPad = topPad)

1432+ } else if (messages.isEmpty()) {

1433+ EmptyConversation(

1434+ onSuggestion = {

1435+ vm.updateDraft(it)

1436+ // Focus the input so the user can edit the suggestion before

1437+ // sending, instead of having to manually tap the field.

1438+ runCatching { inputFocusRequester.requestFocus() }

1439+ },

1440+ modifier = Modifier.align(Alignment.Center).padding(top = topPad),

1441+ )

1442+ } else {

1443+ val lastMessageId = messages.lastOrNull()?.info?.id

1444+ // Text-to-speech for reading assistant replies aloud; shuts down when the

1445+ // message list leaves composition.

1446+ val tts = rememberTtsController()

1447+ val speakingMessageId by tts.speakingId

1448+ val ttsState by tts.state

1449+ // Provide the in-conversation search query to the markdown renderer so matching

1450+ // text spans are highlighted in-place (in addition to the focused-row highlight

1451+ // above). Scoped to the list so cleared search stops highlighting immediately.

1452+ val activeSearchQuery = searchQuery.takeIf { searchActive && it.isNotEmpty() }

1453+ CompositionLocalProvider(LocalSearchHighlight provides activeSearchQuery) {

1454+ LazyColumn(

1455+ state = listState,

1456+ modifier = Modifier.fillMaxSize(),

1457+ // Extra bottom padding reserves room for the jump-to-latest FAB so it

1458+ // never floats over the last message. Top padding grows when the

1459+ // connection banner is visible so it doesn't overlap the first message.

1460+ contentPadding = PaddingValues(

1461+ start = 16.dp,

1462+ top = topPad,

1463+ end = 16.dp,

1464+ bottom = 16.dp + NetworkConfig.chatListFabInsetDp.dp,

1465+ ),

1466+ // Compact spacing (8dp) vs the default 16dp — a power-user toggle to fit

1467+ // more conversation on screen without scrolling as much.

1468+ verticalArrangement = Arrangement.spacedBy(if (compactSpacing) 8.dp else 16.dp),

1469+ ) {

1470+ items(

1471+ items = listItems,

1472+ key = { it.key },

1473+ contentType = { it.contentType },

1474+ ) { item ->

1475+ // When in-conversation search is stepping through matches, highlight the

1476+ // focused one's row so the user can spot it at a glance among the filtered

1477+ // results (full in-text term highlighting would require threading the query

1478+ // through the markdown renderer; the row highlight + scroll-to-match covers

1479+ // the navigation use case desktop chat apps solve with next/prev).

1480+ val focusedMatchId = if (searchActive && searchQuery.isNotEmpty()) {

1481+ searchMessages.getOrNull(searchPos)?.info?.id

1482+ } else null

1483+ val isFocusedMatch = focusedMatchId != null &&

1484+ item is MessageListItem.Message &&

1485+ item.message.info.id == focusedMatchId

1486+ // Default placement animation so inserted/moved rows glide in. Skipped

1487+ // entirely under reduced motion so a streaming message growing in place

1488+ // doesn't animate on every token (and respects the a11y preference).

1489+ Box(

1490+ Modifier

1491+ .then(reducedMotionAnimateItem())

1492+ .then(

1493+ if (isFocusedMatch) {

1494+ Modifier.background(

1495+ MaterialTheme.colorScheme.secondaryContainer,

1496+ MaterialTheme.shapes.medium,

1497+ )

1498+ } else {

1499+ Modifier

1500+ },

1501+ ),

1502+ ) {

1503+ when (item) {

1504+ is MessageListItem.Separator -> DateSeparator(item.label)

1505+ is MessageListItem.Message -> {

1506+ val message = item.message

1507+ val messageId = message.info.id

1508+ // Only the last (streaming) message needs isRunning — it drives the

1509+ // reasoning-block spinner. Passing the live flag to every bubble

1510+ // makes all visible messages recompose whenever a run starts or stops.

1511+ val modelLabel = remember(message.info, models) {

1512+ (message.info as? soy.iko.opencode.data.model.AssistantMessage)

1513+ ?.let { resolveModelLabel(it, models) }

1514+ }

1515+ // Key agentLabel/quoteText on the message id (not message.parts) so

1516+ // the streaming message — whose `parts` list is replaced on every

1517+ // token — doesn't re-run filterIsInstance per token for these two

1518+ // derived labels. For a non-streaming message, `message.parts` is

1519+ // reference-stable anyway, so this is equivalent. For the streaming

1520+ // message the label updates as parts change via the message.info/

1521+ // parts reference change below — keyed on messageId + a parts-hash

1522+ // is overkill; agentLabel/quoteText only need to reflect the latest

1523+ // parts, and `remember(messageId, message.parts)` would re-key per

1524+ // token. Instead key on `messageId` alone and accept that the label

1525+ // lags by one recomposition for the streaming bubble (it stabilizes

1526+ // once the stream finishes). This is invisible in practice: agent

1527+ // label is set on the first part, quote text grows with text parts

1528+ // but is only consumed on a swipe (user-initiated, post-stream).

1529+ val agentLabel = remember(messageId) {

1530+ message.parts

1531+ .filterIsInstance<soy.iko.opencode.data.model.AgentPart>()

1532+ .firstOrNull { it.name.isNotBlank() }?.name

1533+ }

1534+ // Text used to drive swipe-to-reply (and pre-fill the quote). Empty for

1535+ // image/code-only messages, which then opt out of the swipe gesture.

1536+ val quoteText = remember(messageId) {

1537+ message.parts

1538+ .filterIsInstance<TextPart>()

1539+ .joinToString("\n\n") { it.text }

1540+ .trim()

1541+ .takeIf { it.isNotEmpty() }

1542+ }

1543+ // Swipe-start-to-end reveals a reply affordance and triggers quote-reply,

1544+ // snapping back (the message isn't dismissed — the quote fills the composer).

1545+ // Enabled for non-text messages too (image/tool-only), but the confirm

1546+ // callback gives a haptic without triggering reply — so the user gets a

1547+ // perceptible "can't quote this" signal instead of a silently dead gesture.

1548+ val cantQuoteMsg = stringResource(R.string.cannot_quote_this)

1549+ val undoLabel = stringResource(R.string.undo)

1550+ val quoteReplyLabel = stringResource(R.string.quote_reply_banner)

1551+ // Memoize the swipe confirmValueChange lambda on the message id + quoteText

1552+ // so it's stable across recompositions (a fresh lambda would force the

1553+ // SwipeToDismissBox to re-instantiate its state capture). quoteText is a

1554+ // derived value that's stable for non-streaming messages.

1555+ val swipeState = rememberSwipeToDismissBoxState(

1556+ confirmValueChange = remember(messageId, quoteText) {

1557+ { value ->

1558+ val replyValue = if (layoutDirection == LayoutDirection.Rtl) {

1559+ SwipeToDismissBoxValue.EndToStart

1560+ } else {

1561+ SwipeToDismissBoxValue.StartToEnd

1562+ }

1563+ if (value == replyValue) {

1564+ if (quoteText != null) {

1565+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

1566+ vm.quoteReply(quoteText)

1567+ runCatching { inputFocusRequester.requestFocus() }

1568+ scope.launch {

1569+ val res = snackbar.showSnackbar(

1570+ message = quoteReplyLabel,

1571+ actionLabel = undoLabel,

1572+ )

1573+ if (res == androidx.compose.material3.SnackbarResult.ActionPerformed) {

1574+ vm.cancelQuoteReply()

1575+ }

1576+ }

1577+ } else {

1578+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)

1579+ scope.launch { snackbar.showSnackbar(cantQuoteMsg) }

1580+ }

1581+ }

1582+ false

1583+ }

1584+ },

1585+ )

1586+ // In RTL locales, mirror the swipe direction so the reply

1587+ // gesture reads naturally (swipe from the trailing edge

1588+ // toward the leading edge), matching how LTR users swipe

1589+ // left-to-right. Without this, RTL users had no reply swipe.

1590+ val replyFromStartToEnd = layoutDirection != LayoutDirection.Rtl

1591+ // Memoize every MessageBubble lambda on the message id so a recomposition

1592+ // triggered by a sibling (e.g. the streaming message's parts changing,

1593+ // which gives `listItems` a new identity) doesn't allocate fresh lambdas

1594+ // for the unchanged bubbles. MessageBubble is non-skippable (it takes

1595+ // many `(() -> Unit)?` params, which Compose treats as unstable), so

1596+ // without memoization every visible bubble recomposes on every token,

1597+ // defeating the @Immutable MessageWithParts reference-stability the

1598+ // reducer's Holder cache provides. This mirrors the SessionListScreen

1599+ // per-card lambda memoization pattern.

1600+ val onRevert = remember(messageId) { { vm.revertTo(messageId) } }

1601+ val onEdit = remember(messageId) {

1602+ { text: String ->

1603+ // editMessage reverts to before this message (hiding it and

1604+ // everything after); the revert banner surfaces the rewind

1605+ // with an Undo. Focus + scroll the composer into view like the

1606+ // Quote action so the prefilled draft isn't off-screen.

1607+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

1608+ vm.editMessage(messageId, text)

1609+ runCatching { inputFocusRequester.requestFocus() }

1610+ contentScope.launch {

1611+ runCatchingCancellable {

1612+ listState.animateScrollToItem(currentListItems.lastIndex.coerceAtLeast(0))

1613+ }

1614+ }

1615+ Unit

1616+ }

1617+ }

1618+ val onSpeak = remember(messageId) {

1619+ { text: String ->

1620+ if (!tts.toggle(messageId, text)) {

1621+ scope.launch { snackbar.showSnackbar(ttsUnavailableMsg) }

1622+ }

1623+ Unit

1624+ }

1625+ }

1626+ val onPause = remember { { tts.pause() } }

1627+ val onResume = remember { { tts.resume() } }

1628+ val onStop = remember { { tts.stop() } }

1629+ val onQuote = remember(messageId) {

1630+ { text: String ->

1631+ vm.quoteReply(text)

1632+ runCatching { inputFocusRequester.requestFocus() }

1633+ Unit

1634+ }

1635+ }

1636+ val onBranch = remember { { text: String -> vm.branchFrom(text); Unit } }

1637+ // Regenerate is only meaningful for a finished assistant reply

1638+ // (not the actively-streaming one), so gate it on !running.

1639+ val onRegenerate = if (!running) {

1640+ remember(messageId) { { vm.regenerate(messageId) } }

1641+ } else {

1642+ null

1643+ }

1644+ // Continue: resume a partial reply. Shown only for

1645+ // incomplete assistant messages (a partial reply that

1646+ // was aborted) and not while a run is active.

1647+ val canContinue = !running && message.info is AssistantMessage && !message.info.isComplete

1648+ val onContinue = if (canContinue) {

1649+ remember(messageId) { { vm.continueRun(messageId) } }

1650+ } else {

1651+ null

1652+ }

1653+ val messageFailed = optimisticStatuses[messageId] == true

1654+ val onRetry = if (messageFailed) {

1655+ remember(messageId) { { vm.retryOptimisticMessage(messageId); Unit } }

1656+ } else {

1657+ null

1658+ }

1659+ val onDismiss = if (messageFailed) {

1660+ remember(messageId) { { vm.dismissOptimistic(messageId) } }

1661+ } else {

1662+ null

1663+ }

1664+ val onShare = remember(messageId, sessionTitle, defaultShareSubject) {

1665+ {

1666+ // Per-message share: build a single-message Markdown

1667+ // transcript off-thread and fire ACTION_SEND, mirroring the

1668+ // whole-conversation share but scoped to just this message.

1669+ scope.launch {

1670+ val md = withContext(Dispatchers.Default) {

1671+ buildMessageMarkdown(message)

1672+ } ?: return@launch

1673+ val send = android.content.Intent(android.content.Intent.ACTION_SEND).apply {

1674+ type = "text/markdown"

1675+ putExtra(android.content.Intent.EXTRA_SUBJECT, sessionTitle ?: defaultShareSubject)

1676+ putExtra(android.content.Intent.EXTRA_TEXT, md)

1677+ }

1678+ runCatchingCancellable { shareContext.startActivity(android.content.Intent.createChooser(send, shareContext.getString(R.string.share_message))) }

1679+ .onFailure { showToast(shareContext, shareContext.getString(R.string.no_share_app)) }

1680+ }

1681+ Unit

1682+ }

1683+ }

1684+ SwipeToDismissBox(

1685+ state = swipeState,

1686+ enableDismissFromEndToStart = !replyFromStartToEnd,

1687+ enableDismissFromStartToEnd = replyFromStartToEnd,

1688+ backgroundContent = {

1689+ Box(

1690+ Modifier.fillMaxSize().padding(horizontal = 16.dp),

1691+ contentAlignment = if (replyFromStartToEnd) Alignment.CenterStart else Alignment.CenterEnd,

1692+ ) {

1693+ Icon(

1694+ Icons.AutoMirrored.Filled.Reply,

1695+ contentDescription = null,

1696+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

1697+ )

1698+ }

1699+ },

1700+ ) {

1701+ MessageBubble(

1702+ message,

1703+ isRunning = running && messageId == lastMessageId,

1704+ imageContext = imageContext,

1705+ modelLabel = modelLabel,

1706+ agentLabel = agentLabel,

1707+ onOpenFile = onOpenFile,

1708+ onRevert = onRevert,

1709+ onEdit = onEdit,

1710+ onSpeak = onSpeak,

1711+ isSpeaking = messageId == speakingMessageId,

1712+ ttsState = if (messageId == speakingMessageId) ttsState else TtsState.IDLE,

1713+ onPause = onPause,

1714+ onResume = onResume,

1715+ onStop = onStop,

1716+ onQuote = onQuote,

1717+ onBranch = onBranch,

1718+ onRegenerate = onRegenerate,

1719+ onContinue = onContinue,

1720+ sendStatus = optimisticStatuses[messageId]?.let { failed ->

1721+ if (failed) soy.iko.opencode.ui.chat.MessageSendStatus.FAILED

1722+ else soy.iko.opencode.ui.chat.MessageSendStatus.SENDING

1723+ },

1724+ isEdited = message.info.time?.let { it.updated != null && it.updated != it.created } == true,

1725+ onRetry = onRetry,

1726+ onDismiss = onDismiss,

1727+ onShare = onShare,

1728+ isFirstOfSpeaker = item.isFirstOfSpeaker,

1729+ highlighted = focusedMessageId != null && messageId == focusedMessageId,

1730+ )

1731+ }

1732+ }

1733+ }

1734+ }

1735+ }

1736+ if (running) {

1737+ item(key = "__typing") {

1738+ val workingText = stringResource(R.string.working)

1739+ // When the SSE stream dropped mid-run, show a "reconnecting" label

1740+ // instead of the plain "working" text so the user understands the

1741+ // run is still active but the stream is reconnecting (not finished).

1742+ val reconnectingText = stringResource(R.string.reconnecting)

1743+ val interruptedLabel = if (streamInterrupted) reconnectingText else workingText

1744+ // Elapsed-since-run chip driven by the VM's runStartMs so the timer

1745+ // survives LazyColumn recycling — a local remember reset to 0:00 when

1746+ // the row was disposed and scrolled back into view. The VM stamps the

1747+ // start on the real false→true transition (send/run/init), not on

1748+ // SSE-reconnect relight, so reconnects don't restart the clock. Updates

1749+ // once per second; the value is decorative (the a11y label is the row's).

1750+ // The clock freezes when an abort is confirmed (aborting = true) so the

1751+ // user can see how long the run lasted before they stopped it, rather

1752+ // than the clock continuing to tick until SessionIdle clears _running.

1753+ val startMs by vm.runStartMs.collectAsStateWithLifecycle()

1754+ // Seed the initial value synchronously from startMs so the timer

1755+ // doesn't flash 0:00 when the __typing row is recycled by LazyColumn

1756+ // (scrolled out then back in): produceState's coroutine is cancelled on

1757+ // disposal and re-launched on re-entry, and a 0L initialValue would

1758+ // briefly show "0:00" before the producer's first iteration runs.

1759+ val elapsedMs by produceState(

1760+ initialValue = if (startMs > 0L) (System.currentTimeMillis() - startMs).coerceAtLeast(0L) else 0L,

1761+ startMs, aborting,

1762+ ) {

1763+ if (startMs == 0L) return@produceState

1764+ if (aborting) {

1765+ // Freeze at the last-computed value: one final snapshot then stop.

1766+ value = (System.currentTimeMillis() - startMs).coerceAtLeast(0L)

1767+ return@produceState

1768+ }

1769+ while (true) {

1770+ value = (System.currentTimeMillis() - startMs).coerceAtLeast(0L)

1771+ delay(1000)

1772+ }

1773+ }

1774+ val elapsedText = remember(elapsedMs) {

1775+ val total = elapsedMs / 1000

1776+ // Locale.US for stable digit formatting: on locales with

1777+ // non-ASCII digits (ar-/fa-) the default locale would render

1778+ // localized digits inside the Monospace block, breaking the

1779+ // fixed-width alignment the monospace family was chosen for.

1780+ String.format(java.util.Locale.US, "%d:%02d", total / 60, total % 60)

1781+ }

1782+ Row(

1783+ verticalAlignment = Alignment.CenterVertically,

1784+ // Animate this slot in/out so the working row doesn't pop in and

1785+ // jolt the message list when a run starts/stops — matching the

1786+ // AnimatedVisibility used by every other transient banner/FAB here.

1787+ modifier = Modifier

1788+ .then(reducedMotionAnimateItem())

1789+ .padding(vertical = 4.dp),

1790+ ) {

1791+ // Merge the indicator + label + clock into one TalkBack node so

1792+ // it's announced once (the working label, then the elapsed time)

1793+ // instead of "working… / working… / 0:14" with the label read

1794+ // twice. The Stop IconButton below stays separately focusable.

1795+ Row(

1796+ verticalAlignment = Alignment.CenterVertically,

1797+ modifier = Modifier.semantics(mergeDescendants = true) {

1798+ contentDescription = "$interruptedLabel $elapsedText"

1799+ },

1800+ ) {

1801+ // Dim the spinner when interrupted so the row reads as

1802+ // "paused/reconnecting" rather than actively progressing.

1803+ CircularProgressIndicator(

1804+ Modifier.size(16.dp),

1805+ strokeWidth = 2.dp,

1806+ color = if (streamInterrupted) MaterialTheme.colorScheme.onSurfaceVariant

1807+ else MaterialTheme.colorScheme.primary,

1808+ )

1809+ Text(interruptedLabel, style = MaterialTheme.typography.labelMedium, modifier = Modifier.padding(start = 6.dp))

1810+ Spacer(Modifier.size(8.dp))

1811+ Icon(

1812+ Icons.Filled.Schedule,

1813+ contentDescription = null,

1814+ modifier = Modifier.size(14.dp),

1815+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

1816+ )

1817+ Text(

1818+ elapsedText,

1819+ style = MaterialTheme.typography.labelMedium,

1820+ fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,

1821+ color = MaterialTheme.colorScheme.onSurfaceVariant,

1822+ modifier = Modifier.padding(start = 4.dp),

1823+ )

1824+ }

1825+ // A trailing Stop on the working row so the run can be aborted

1826+ // without scrolling back to the composer (which may be off-screen

1827+ // while the user reads the streaming output up-thread).

1828+ Spacer(Modifier.weight(1f))

1829+ val stopLabel = stringResource(R.string.stop)

1830+ IconButton(

1831+ onClick = { vm.abort() },

1832+ modifier = Modifier.semantics { contentDescription = stopLabel },

1833+ ) {

1834+ Icon(Icons.Filled.Stop, contentDescription = null)

1835+ }

1836+ }

1837+ }

1838+ }

1839+ }

1840+ }

1841+ }

1842+ }

1843+ // Jump-to-latest affordance when the user has scrolled away during a stream.

1844+ val fabMotion = rememberVisibilityTransitions()

1845+ AnimatedVisibility(

1846+ visible = !isPinnedToBottom && listItems.isNotEmpty(),

1847+ enter = fabMotion.enter,

1848+ exit = fabMotion.exit,

1849+ // Inset by sideMargin on wide screens so the FAB tracks the capped list's

1850+ // edge instead of floating at the screen edge (visually detached on tablets).

1851+ modifier = Modifier.align(Alignment.BottomEnd).padding(end = sideMargin),

1852+ ) {

1853+ // Badge the FAB when new content arrived while the user was scrolled up, so

1854+ // they know there's something new to jump to (cleared once back at bottom).

1855+ BadgedBox(

1856+ badge = {

1857+ if (newContentCount > 0) {

1858+ // Merge the count into the badge announcement so TalkBack reads

1859+ // "5 new messages" instead of the bare label and a separate number.

1860+ val newContentLabel = pluralStringResource(

1861+ R.plurals.plurals_new_messages,

1862+ newContentCount,

1863+ newContentCount,

1864+ )

1865+ Badge(

1866+ modifier = Modifier.semantics {

1867+ contentDescription = newContentLabel

1868+ // Announce new-content counts as they change so a

1869+ // TalkBack user hears "5 new messages" without having

1870+ // to focus the FAB. Polite so it doesn't interrupt an

1871+ // in-progress utterance (e.g. streaming token reads).

1872+ liveRegion = androidx.compose.ui.semantics.LiveRegionMode.Polite

1873+ },

1874+ ) {

1875+ Text(

1876+ if (newContentCount > 99) "99+" else newContentCount.toString(),

1877+ modifier = Modifier.semantics { invisibleToUser() },

1878+ )

1879+ }

1880+ }

1881+ },

1882+ modifier = Modifier.padding(end = 16.dp, bottom = 16.dp),

1883+ ) {

1884+ ExtendedFloatingActionButton(

1885+ onClick = {

1886+ newContentCount = 0

1887+ if (listItems.isNotEmpty()) {

1888+ // Scroll to the effective last index, including the

1889+ // trailing "__typing" row when a run is active.

1890+ val target = if (running) listItems.size else listItems.lastIndex

1891+ contentScope.launch { runCatchingCancellable { listState.animateScrollToItem(target) } }

1892+ }

1893+ },

1894+ // contentDescription null: the visible "Latest" text already labels

1895+ // the FAB, so a description here makes TalkBack announce "Latest" twice.

1896+ icon = { Icon(Icons.Filled.KeyboardArrowDown, contentDescription = null) },

1897+ text = { Text(stringResource(R.string.latest)) },

1898+ )

1899+ }

1900+ }

1901+ // Scroll-to-top affordance: a small FAB at the start edge, visible when the

1902+ // user has scrolled down past the first few messages. Symmetric to the

1903+ // jump-to-latest FAB, for long conversations where manual fling back is tedious.

1904+ val scrolledDown by remember {

1905+ derivedStateOf { listState.firstVisibleItemIndex > 0 || listState.firstVisibleItemScrollOffset > 200 }

1906+ }

1907+ AnimatedVisibility(

1908+ visible = scrolledDown && listItems.size > 4,

1909+ enter = fabMotion.enter,

1910+ exit = fabMotion.exit,

1911+ modifier = Modifier.align(Alignment.BottomStart).padding(start = sideMargin),

1912+ ) {

1913+ SmallFloatingActionButton(

1914+ onClick = {

1915+ contentScope.launch { runCatchingCancellable { listState.animateScrollToItem(0) } }

1916+ },

1917+ modifier = Modifier.padding(start = 16.dp, bottom = 16.dp),

1918+ ) {

1919+ Icon(

1920+ Icons.Filled.KeyboardArrowUp,

1921+ contentDescription = stringResource(R.string.scroll_to_top),

1922+ )

1923+ }

1924+ }

1925+ // In-conversation search bar. Overlays the list so typing filters messages in

1926+ // place; the match count + a no-matches note give immediate feedback.

1927+ val searchMotion = rememberVisibilityTransitions()

1928+ AnimatedVisibility(

1929+ visible = searchActive,

1930+ enter = searchMotion.enter,

1931+ exit = searchMotion.exit,

1932+ // Inset by sideMargin on wide screens so the search bar spans the capped

1933+ // list's width, not the full screen width.

1934+ modifier = Modifier.align(Alignment.TopCenter).padding(horizontal = sideMargin),

1935+ ) {

1936+ Surface(

1937+ tonalElevation = 3.dp,

1938+ modifier = Modifier

1939+ .padding(horizontal = 12.dp, vertical = 4.dp)

1940+ .fillMaxWidth()

1941+ .onSizeChanged { searchbarHeightPx = it.height },

1942+ ) {

1943+ // Focus the search field when the bar appears (from the overflow menu's

1944+ // "Find in conversation" or Ctrl+F), so the user can start typing

1945+ // immediately. Runs after the search field enters the composition.

1946+ LaunchedEffect(searchActive) {

1947+ if (searchActive) runCatching { searchFocusRequester.requestFocus() }

1948+ }

1949+ Row(

1950+ modifier = Modifier.padding(start = 8.dp, end = 4.dp),

1951+ verticalAlignment = Alignment.CenterVertically,

1952+ ) {

1953+ OutlinedTextField(

1954+ value = chatSearch,

1955+ onValueChange = { chatSearch = it },

1956+ modifier = Modifier.weight(1f).focusRequester(searchFocusRequester),

1957+ placeholder = { Text(stringResource(R.string.search_in_conversation)) },

1958+ singleLine = true,

1959+ leadingIcon = { Icon(Icons.Filled.Search, contentDescription = null) },

1960+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search),

1961+ )

1962+ // Match counter: "N of M" where N is the focused match (1-based) and

1963+ // M is the total matching messages. Only shown when there's a query.

1964+ val matchCount = searchMessages.size

1965+ Text(

1966+ if (searchQuery.isNotEmpty() && matchCount > 0) {

1967+ stringResource(R.string.search_match_count, searchPos + 1, matchCount)

1968+ } else if (searchQuery.isNotEmpty()) {

1969+ stringResource(R.string.search_no_matches)

1970+ } else "",

1971+ style = MaterialTheme.typography.labelSmall,

1972+ color = MaterialTheme.colorScheme.onSurfaceVariant,

1973+ modifier = Modifier

1974+ .padding(horizontal = 4.dp)

1975+ // Live region so a TalkBack user hears "3 of 12" / "No

1976+ // matches" announce as they step through results, not just

1977+ // the sighted user seeing the counter update.

1978+ .semantics { liveRegion = androidx.compose.ui.semantics.LiveRegionMode.Polite },

1979+ )

1980+ // Step through matches (Previous / Next), disabled when there are

1981+ // fewer than two to navigate. Wrap around at the ends so repeated

1982+ // taps cycle through every hit.

1983+ val prevLabel = stringResource(R.string.find_previous)

1984+ val nextLabel = stringResource(R.string.find_next)

1985+ IconButton(

1986+ onClick = {

1987+ if (matchCount > 0) {

1988+ searchPos = (searchPos - 1 + matchCount) % matchCount

1989+ }

1990+ },

1991+ enabled = matchCount > 1,

1992+ ) {

1993+ Icon(Icons.Filled.KeyboardArrowUp, contentDescription = prevLabel)

1994+ }

1995+ IconButton(

1996+ onClick = {

1997+ if (matchCount > 0) {

1998+ searchPos = (searchPos + 1) % matchCount

1999+ }

2000+ },

2001+ enabled = matchCount > 1,

2002+ ) {

2003+ Icon(Icons.Filled.KeyboardArrowDown, contentDescription = nextLabel)

2004+ }

2005+ IconButton(onClick = {

2006+ searchActive = false

2007+ chatSearch = ""

2008+ }) {

2009+ Icon(Icons.Filled.Close, contentDescription = stringResource(R.string.clear_search))

2010+ }

2011+ }

2012+ }

2013+ }

2014+ // When a search yields no matches (but the conversation isn't empty), say so

2015+ // instead of showing a blank list.

2016+ if (searchActive && searchQuery.isNotEmpty() && searchMessages.isEmpty() && messages.isNotEmpty()) {

2017+ Text(

2018+ stringResource(R.string.search_no_matches),

2019+ style = MaterialTheme.typography.bodyMedium,

2020+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2021+ modifier = Modifier.align(Alignment.Center),

2022+ )

2023+ }

2024+ }

2025+ }

2026+ }

2027+ }

2028+

2029+ if (showExitConfirm) {

2030+ AlertDialog(

2031+ onDismissRequest = { showExitConfirm = false },

2032+ title = { Text(stringResource(R.string.stop_and_exit_title)) },

2033+ text = { Text(stringResource(R.string.stop_and_exit_text)) },

2034+ confirmButton = {

2035+ TextButton(onClick = {

2036+ showExitConfirm = false

2037+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2038+ vm.abort()

2039+ onBack()

2040+ }) { Text(stringResource(R.string.stop_and_exit)) }

2041+ },

2042+ dismissButton = {

2043+ TextButton(onClick = { showExitConfirm = false }) { Text(stringResource(R.string.stay)) }

2044+ },

2045+ )

2046+ }

2047+

2048+ if (showSummarizeConfirm) {

2049+ AlertDialog(

2050+ onDismissRequest = { showSummarizeConfirm = false },

2051+ title = { Text(stringResource(R.string.summarize_confirm_title)) },

2052+ text = { Text(stringResource(R.string.summarize_confirm_text)) },

2053+ confirmButton = {

2054+ TextButton(onClick = {

2055+ showSummarizeConfirm = false

2056+ vm.summarize()

2057+ }) { Text(stringResource(R.string.action_continue)) }

2058+ },

2059+ dismissButton = {

2060+ TextButton(onClick = { showSummarizeConfirm = false }) { Text(stringResource(R.string.cancel)) }

2061+ },

2062+ )

2063+ }

2064+

2065+ if (showInitConfirm) {

2066+ AlertDialog(

2067+ onDismissRequest = { showInitConfirm = false },

2068+ title = { Text(stringResource(R.string.init_confirm_title)) },

2069+ text = { Text(stringResource(R.string.init_confirm_text)) },

2070+ confirmButton = {

2071+ TextButton(onClick = {

2072+ showInitConfirm = false

2073+ vm.initProject()

2074+ }) { Text(stringResource(R.string.action_continue)) }

2075+ },

2076+ dismissButton = {

2077+ TextButton(onClick = { showInitConfirm = false }) { Text(stringResource(R.string.cancel)) }

2078+ },

2079+ )

2080+ }

2081+

2082+ if (showRenameDialog) {

2083+ RenameSessionChatDialog(

2084+ initialTitle = sessionTitle ?: "",

2085+ onDismiss = { showRenameDialog = false },

2086+ onConfirm = { newName ->

2087+ showRenameDialog = false

2088+ vm.renameSession(newName)

2089+ },

2090+ )

2091+ }

2092+

2093+ if (showDeleteDialog) {

2094+ AlertDialog(

2095+ onDismissRequest = { showDeleteDialog = false },

2096+ title = { Text(stringResource(R.string.delete_session_chat_title)) },

2097+ text = { Text(stringResource(R.string.delete_session_chat_text, sessionTitle ?: sessionLabel)) },

2098+ confirmButton = {

2099+ TextButton(onClick = {

2100+ showDeleteDialog = false

2101+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)

2102+ vm.deleteSession()

2103+ }) { Text(stringResource(R.string.delete), color = MaterialTheme.colorScheme.error) }

2104+ },

2105+ dismissButton = {

2106+ TextButton(onClick = { showDeleteDialog = false }) { Text(stringResource(R.string.cancel)) }

2107+ },

2108+ )

2109+ }

2110+

2111+ if (showShellDialog) {

2112+ ShellCommandDialog(

2113+ onDismiss = { showShellDialog = false },

2114+ onRun = { cmd ->

2115+ showShellDialog = false

2116+ vm.runShell(cmd)

2117+ },

2118+ )

2119+ }

2120+

2121+ if (showModelPicker) {

2122+ // Resolve persisted recent composite keys to the live ModelOption entries they refer

2123+ // to, dropping any whose model is no longer offered by the server. Ordered by

2124+ // recency (head of the store first).

2125+ val recentOptions = remember(models, recentModelEntries) {

2126+ val byKey = models.associateBy { it.providerID to it.modelID }

2127+ recentModelEntries.mapNotNull { entry ->

2128+ container.recentModelsStore.split(entry)?.let { (p, m) -> byKey[p to m] }

2129+ }

2130+ }

2131+ // Resolve snackbar strings in the composable scope; the onSetPreferredModel lambda

2132+ // below isn't @Composable, so stringResource can't be called inside it.

2133+ val defaultModelClearedMsg = stringResource(R.string.default_model_cleared)

2134+ val defaultModelSetFmt = stringResource(R.string.default_model_set, "%s")

2135+ ModelPickerSheet(

2136+ options = models,

2137+ selected = selectedModel,

2138+ loading = modelsLoading,

2139+ error = modelsError,

2140+ onSelect = {

2141+ vm.selectModel(it)

2142+ container.recentModelsStore.add(it.providerID, it.modelID)

2143+ },

2144+ onRetry = { vm.reloadModels() },

2145+ onDismiss = { showModelPicker = false },

2146+ preferredModelId = preferredModelId,

2147+ onSetPreferredModel = { id ->

2148+ scope.launch {

2149+ runCatchingCancellable { container.settingsStore.setPreferredModelId(id) }

2150+ // Confirm the change with a snackbar so the user sees it took effect —

2151+ // the toggle's label flip can be missed, especially when clearing.

2152+ val msg = if (id.isEmpty()) {

2153+ defaultModelClearedMsg

2154+ } else {

2155+ val label = models.firstOrNull { it.modelID == id }?.modelLabel ?: id

2156+ defaultModelSetFmt.format(label)

2157+ }

2158+ snackbar.showSnackbar(msg)

2159+ }

2160+ },

2161+ recent = recentOptions,

2162+ )

2163+ }

2164+

2165+ if (showAgentPicker) {

2166+ AgentPickerSheet(

2167+ agents = agents,

2168+ selected = selectedAgent,

2169+ loading = agentsLoading,

2170+ error = agentsError,

2171+ onSelect = { vm.selectAgent(it?.name) },

2172+ onRetry = { vm.reloadAgents() },

2173+ onDismiss = { showAgentPicker = false },

2174+ )

2175+ }

2176+

2177+ if (showCommandPicker) {

2178+ CommandPickerSheet(

2179+ commands = commands,

2180+ loading = commandsLoading,

2181+ error = commandsError,

2182+ onSelect = { vm.runCommand(it) },

2183+ onRetry = { vm.reloadCommands() },

2184+ onDismiss = { showCommandPicker = false },

2185+ )

2186+ }

2187+

2188+ pendingPermission?.let { permission ->

2189+ PermissionDialog(

2190+ permission = permission,

2191+ position = permissionProgress.position,

2192+ total = permissionProgress.total,

2193+ onRespond = { response -> vm.respondPermission(permission, response) },

2194+ // On auto-reject timeout, post a notification so a returning user finds a

2195+ // persistent record of why the run stopped (the dialog itself is gone).

2196+ // Gated by the user's notification setting (notifPermission).

2197+ onAutoReject = {

2198+ val conn = activeConnection

2199+ val ctx = appContext

2200+ val title = sessionTitle ?: sessionId

2201+ if (notifPermission) {

2202+ soy.iko.opencode.notification.SessionNotifications.postPermissionAutoRejected(

2203+ ctx, sessionId, title, conn?.profile?.id,

2204+ )

2205+ }

2206+ },

2207+ )

2208+ }

2209+

2210+ if (showPalette) {

2211+ CommandPalette(actions = paletteActions, onDismiss = { showPalette = false })

2212+ }

2213+

2214+ if (showShortcutsDialog) {

2215+ // Surfaces the hardware-keyboard shortcuts (Ctrl+K palette, Escape stop, Enter send)

2216+ // that are otherwise wired but undiscoverable. A simple key/value list; Enter behavior

2217+ // depends on the "Send on Enter" setting, noted inline.

2218+ AlertDialog(

2219+ onDismissRequest = { showShortcutsDialog = false },

2220+ title = { Text(stringResource(R.string.keyboard_shortcuts_title)) },

2221+ text = {

2222+ Column(verticalArrangement = Arrangement.spacedBy(10.dp)) {

2223+ ShortcutRow("Ctrl + K", stringResource(R.string.shortcut_open_palette))

2224+ ShortcutRow("Esc", stringResource(R.string.shortcut_stop_run))

2225+ ShortcutRow("Esc", stringResource(R.string.shortcut_close))

2226+ ShortcutRow("Enter", stringResource(R.string.shortcut_send))

2227+ ShortcutRow("Shift + Enter / Ctrl + Enter", stringResource(R.string.shortcut_newline))

2228+ }

2229+ },

2230+ confirmButton = {

2231+ TextButton(onClick = { showShortcutsDialog = false }) { Text(stringResource(R.string.action_continue)) }

2232+ },

2233+ )

2234+ }

2235+}

2236+

2237+@Composable

2238+private fun ShortcutRow(keys: String, desc: String) {

2239+ Row(verticalAlignment = Alignment.CenterVertically) {

2240+ Text(

2241+ keys,

2242+ style = MaterialTheme.typography.labelLarge,

2243+ fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,

2244+ modifier = Modifier.widthIn(min = 160.dp),

2245+ )

2246+ Text(

2247+ desc,

2248+ style = MaterialTheme.typography.bodyMedium,

2249+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2250+ )

2251+ }

2252+}

2253+

2254+/**

2255+ * Slash-command autocomplete: when the draft starts with "/", show a filtered dropdown

2256+ * of matching commands above the composer. Tapping a command fires it immediately.

2257+ * Extracted from [ChatInputBar] to keep that function's cyclomatic complexity under

2258+ * the detekt threshold. Suppressed while running or when the command catalog is empty.

2259+ */

2260+@Composable

2261+private fun SlashCommandAutocomplete(

2262+ value: String,

2263+ commands: List<Command>,

2264+ running: Boolean,

2265+ onRunCommand: (Command) -> Unit,

2266+) {

2267+ if (running || commands.isEmpty()) return

2268+ val slashQuery = remember(value) {

2269+ if (value.startsWith("/")) value.removePrefix("/") else null

2270+ } ?: return

2271+ val matchingCommands = remember(slashQuery, commands) {

2272+ commands.filter { cmd ->

2273+ slashQuery.isEmpty() ||

2274+ cmd.name.contains(slashQuery, ignoreCase = true) ||

2275+ (cmd.description?.contains(slashQuery, ignoreCase = true) == true)

2276+ }.take(8)

2277+ }

2278+ if (matchingCommands.isNotEmpty()) {

2279+ CommandAutocompleteDropdown(

2280+ commands = matchingCommands,

2281+ onPick = onRunCommand,

2282+ )

2283+ }

2284+}

2285+

2286+/**

2287+ * Slash-command autocomplete dropdown shown above the composer when the draft starts

2288+ * with "/". Renders up to 8 matching commands as a scrollable, elevated surface so the

2289+ * user can discover and invoke commands by typing the conventional "/" prefix instead

2290+ * of opening the overflow menu / command palette. Tapping a row fires the command.

2291+ */

2292+@Composable

2293+private fun CommandAutocompleteDropdown(

2294+ commands: List<Command>,

2295+ onPick: (Command) -> Unit,

2296+) {

2297+ val haptics = LocalHapticFeedback.current

2298+ Surface(

2299+ color = MaterialTheme.colorScheme.surface,

2300+ tonalElevation = 3.dp,

2301+ shape = MaterialTheme.shapes.medium,

2302+ modifier = Modifier

2303+ .fillMaxWidth()

2304+ .padding(horizontal = 8.dp, vertical = 4.dp)

2305+ .heightIn(max = 240.dp),

2306+ ) {

2307+ LazyColumn {

2308+ items(

2309+ count = commands.size,

2310+ key = { commands[it].name },

2311+ ) { i ->

2312+ val cmd = commands[i]

2313+ Row(

2314+ modifier = Modifier

2315+ .fillMaxWidth()

2316+ .clickable(role = Role.Button) {

2317+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2318+ onPick(cmd)

2319+ }

2320+ .padding(horizontal = 16.dp, vertical = 10.dp),

2321+ verticalAlignment = Alignment.CenterVertically,

2322+ horizontalArrangement = Arrangement.spacedBy(12.dp),

2323+ ) {

2324+ Text(

2325+ "/${cmd.name}",

2326+ style = MaterialTheme.typography.labelLarge,

2327+ fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,

2328+ color = MaterialTheme.colorScheme.primary,

2329+ )

2330+ cmd.description?.takeIf { it.isNotBlank() }?.let { desc ->

2331+ Text(

2332+ desc,

2333+ style = MaterialTheme.typography.bodySmall,

2334+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2335+ maxLines = 1,

2336+ overflow = TextOverflow.Ellipsis,

2337+ )

2338+ }

2339+ }

2340+ }

2341+ }

2342+ }

2343+}

2344+

2345+@OptIn(androidx.compose.foundation.ExperimentalFoundationApi::class)

2346+@Suppress("CyclomaticComplexMethod")

2347+@Composable

2348+private fun ChatInputBar(

2349+ value: String,

2350+ onValueChange: (String) -> Unit,

2351+ running: Boolean,

2352+ aborting: Boolean,

2353+ enabled: Boolean,

2354+ sendOnEnter: Boolean,

2355+ onSend: () -> Unit,

2356+ onAbort: () -> Unit,

2357+ queuedFollowUp: String?,

2358+ onQueueFollowUp: (String) -> Unit,

2359+ onCancelQueue: () -> Unit,

2360+ focusRequester: androidx.compose.ui.focus.FocusRequester,

2361+ attachments: List<PendingAttachment>,

2362+ staging: Boolean,

2363+ stagingFileCount: Int,

2364+ onRemoveAttachment: (String) -> Unit,

2365+ onPickPhoto: () -> Unit,

2366+ onPickFile: () -> Unit,

2367+ onCamera: () -> Unit,

2368+ onVoice: () -> Unit,

2369+ onPasteImage: (List<Uri>) -> Unit,

2370+ commands: List<Command> = emptyList(),

2371+ onRunCommand: (Command) -> Unit = {},

2372+) {

2373+ // Sendable when there's text OR at least one attachment (an image-only prompt is valid).

2374+ val hasContent = value.isNotBlank() || attachments.isNotEmpty()

2375+ val context = LocalContext.current

2376+ // Full-screen editor state: opened when the user wants more space for a long prompt.

2377+ var showFullScreenEditor by rememberSaveable { mutableStateOf(false) }

2378+ Surface(tonalElevation = 3.dp, modifier = Modifier.imePadding()) {

2379+ Column(modifier = Modifier.fillMaxWidth().windowInsetsPadding(WindowInsets.navigationBars)) {

2380+ // A queued follow-up replaces the Stop button with a "queued" chip so the

2381+ // user sees their message will be sent when the run finishes, and can cancel.

2382+ if (queuedFollowUp != null) {

2383+ val editLabel = stringResource(R.string.edit)

2384+ Row(

2385+ modifier = Modifier

2386+ .fillMaxWidth()

2387+ .padding(start = 12.dp, top = 6.dp, end = 4.dp),

2388+ verticalAlignment = Alignment.CenterVertically,

2389+ ) {

2390+ // Tapping the chip reloads the queued text into the draft (and clears the

2391+ // queue) so a typo spotted while queuing can be fixed without retyping.

2392+ Column(

2393+ modifier = Modifier

2394+ .weight(1f)

2395+ .clip(MaterialTheme.shapes.small)

2396+ .clickable(role = Role.Button, onClickLabel = editLabel) {

2397+ onValueChange(queuedFollowUp)

2398+ onCancelQueue()

2399+ }

2400+ .padding(vertical = 4.dp),

2401+ ) {

2402+ Text(

2403+ stringResource(R.string.queued),

2404+ style = MaterialTheme.typography.labelSmall,

2405+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2406+ )

2407+ Text(

2408+ queuedFollowUp,

2409+ style = MaterialTheme.typography.bodySmall,

2410+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2411+ maxLines = 1,

2412+ overflow = TextOverflow.Ellipsis,

2413+ )

2414+ }

2415+ TextButton(onClick = onCancelQueue, contentPadding = androidx.compose.foundation.layout.PaddingValues(horizontal = 8.dp)) {

2416+ Text(stringResource(R.string.cancel))

2417+ }

2418+ }

2419+ }

2420+ // Staged attachments: horizontally-scrollable thumbnails/chips, each removable.

2421+ AttachmentStrip(attachments, onRemove = onRemoveAttachment, staging = staging, stagingFileCount = stagingFileCount)

2422+ // Slash-command autocomplete: extracted to a helper to keep this function's

2423+ // complexity under the detekt threshold. Returns no-op when the draft doesn't

2424+ // start with "/" or the command catalog is empty.

2425+ SlashCommandAutocomplete(

2426+ value = value,

2427+ commands = commands,

2428+ running = running,

2429+ onRunCommand = onRunCommand,

2430+ )

2431+ Row(

2432+ modifier = Modifier.fillMaxWidth().padding(8.dp),

2433+ verticalAlignment = Alignment.Bottom,

2434+ ) {

2435+ // Attach menu: photo picker, camera, or any file.

2436+ var showAttachMenu by remember { mutableStateOf(false) }

2437+ Box {

2438+ IconButton(onClick = { showAttachMenu = true }, enabled = enabled) {

2439+ Icon(Icons.Filled.Add, contentDescription = stringResource(R.string.add_attachment))

2440+ }

2441+ DropdownMenu(expanded = showAttachMenu, onDismissRequest = { showAttachMenu = false }) {

2442+ DropdownMenuItem(

2443+ leadingIcon = { Icon(Icons.Filled.PhotoLibrary, contentDescription = null) },

2444+ text = { Text(stringResource(R.string.attach_photo)) },

2445+ onClick = { showAttachMenu = false; onPickPhoto() },

2446+ )

2447+ DropdownMenuItem(

2448+ leadingIcon = { Icon(Icons.Filled.PhotoCamera, contentDescription = null) },

2449+ text = { Text(stringResource(R.string.attach_camera)) },

2450+ onClick = { showAttachMenu = false; onCamera() },

2451+ )

2452+ DropdownMenuItem(

2453+ leadingIcon = { Icon(Icons.Filled.Description, contentDescription = null) },

2454+ text = { Text(stringResource(R.string.attach_file)) },

2455+ onClick = { showAttachMenu = false; onPickFile() },

2456+ )

2457+ }

2458+ }

2459+ // Voice dictation: appends recognized speech to the draft. Hidden (not just

2460+ // disabled) when the device has no speech-recognition activity, so a user

2461+ // without a voice app doesn't get a button that only fails noisily on tap.

2462+ val voiceAvailable = remember {

2463+ val pm = context.packageManager

2464+ val intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH)

2465+ pm.queryIntentActivities(intent, 0).isNotEmpty()

2466+ }

2467+ if (voiceAvailable) {

2468+ IconButton(onClick = onVoice, enabled = enabled) {

2469+ Icon(Icons.Filled.Mic, contentDescription = stringResource(R.string.voice_input))

2470+ }

2471+ }

2472+ // Expand to a full-screen editor for long prompts (the inline field caps at 6 lines).

2473+ IconButton(onClick = { showFullScreenEditor = true }, enabled = enabled) {

2474+ Icon(Icons.Filled.Expand, contentDescription = stringResource(R.string.expand_editor))

2475+ }

2476+ OutlinedTextField(

2477+ value = value,

2478+ onValueChange = { v ->

2479+ // Cap input length so a huge paste can't stall the UI. Shares are

2480+ // capped separately in MainActivity; this guards typed/pasted drafts.

2481+ onValueChange(v.take(NetworkConfig.maxDraftLengthChars))

2482+ },

2483+ modifier = Modifier

2484+ .weight(1f)

2485+ .focusRequester(focusRequester)

2486+ .testTag("chat_input")

2487+ // Intercept image content pasted/dropped into the field (keyboard paste

2488+ // of a copied screenshot, drag from Files, etc.) and route it through the

2489+ // same staging path as the attach menu. Non-image content (text) falls

2490+ // through unchanged so normal typing/paste works.

2491+ .contentReceiver(

2492+ remember {

2493+ androidx.compose.foundation.content.ReceiveContentListener { transferable ->

2494+ val clipData = transferable.clipEntry?.clipData

2495+ if (clipData != null) {

2496+ val imageUris = (0 until clipData.itemCount).mapNotNull { i ->

2497+ val item = clipData.getItemAt(i)

2498+ item.uri?.takeIf { uri ->

2499+ item.text == null && uri.toString().let { s ->

2500+ s.startsWith("content:") || s.startsWith("file:")

2501+ }

2502+ }

2503+ }

2504+ if (imageUris.isNotEmpty()) {

2505+ onPasteImage(imageUris)

2506+ }

2507+ }

2508+ transferable

2509+ }

2510+ },

2511+ )

2512+ .onPreviewKeyEvent { event ->

2513+ if (event.type != KeyEventType.KeyDown || event.key != Key.Enter) return@onPreviewKeyEvent false

2514+ // With "Send on Enter" on, Enter sends (Shift+Enter newlines).

2515+ // With it off, Enter inserts a newline and Ctrl+Enter sends.

2516+ val send = enterShouldSend(

2517+ enabled = enabled,

2518+ hasContent = hasContent,

2519+ sendOnEnter = sendOnEnter,

2520+ shift = event.isShiftPressed,

2521+ ctrl = event.isCtrlPressed,

2522+ )

2523+ if (send) {

2524+ if (running) onQueueFollowUp(value) else onSend()

2525+ true

2526+ } else {

2527+ false

2528+ }

2529+ },

2530+ // While a run is active a typed message only queues (sends after the run), so

2531+ // the placeholder says so instead of the plain "Message…".

2532+ placeholder = {

2533+ Text(stringResource(if (running) R.string.composer_hint_running else R.string.message_placeholder))

2534+ },

2535+ enabled = enabled,

2536+ maxLines = 6,

2537+ // Show a "N / max" countdown once the draft crosses a high fraction of

2538+ // the cap, so the user knows a paste is about to be truncated instead

2539+ // of being silently cut off. Hidden for normal short prompts to avoid

2540+ // clutter under a typical one-line message.

2541+ supportingText = {

2542+ val threshold = (NetworkConfig.maxDraftLengthChars * NetworkConfig.draftCountdownThresholdFraction).toInt()

2543+ if (value.length >= threshold) {

2544+ Text(

2545+ stringResource(

2546+ R.string.draft_chars_remaining,

2547+ NetworkConfig.maxDraftLengthChars - value.length,

2548+ NetworkConfig.maxDraftLengthChars,

2549+ ),

2550+ style = MaterialTheme.typography.labelSmall,

2551+ color = if (value.length >= NetworkConfig.maxDraftLengthChars) MaterialTheme.colorScheme.error

2552+ else MaterialTheme.colorScheme.onSurfaceVariant,

2553+ )

2554+ } else if (value.lines().size > 6) {

2555+ // The inline field caps at 6 lines; once the draft crosses that,

2556+ // hint that a bigger full-screen editor exists (the Expand icon

2557+ // above is easy to miss among the icon row). A tappable label

2558+ // would be ideal, but a plain hint is enough to draw attention.

2559+ Text(

2560+ stringResource(R.string.open_full_editor_hint),

2561+ style = MaterialTheme.typography.labelSmall,

2562+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2563+ )

2564+ }

2565+ },

2566+ keyboardOptions = KeyboardOptions(

2567+ // When "Send on Enter" is on, expose ImeAction.Send so the soft

2568+ // keyboard shows a send key — matching the setting's intent and

2569+ // giving touch-only users a keyboard send affordance. When off,

2570+ // ImeAction.Default keeps the enter/newline key for multi-line input.

2571+ imeAction = if (sendOnEnter) ImeAction.Send else ImeAction.Default,

2572+ capitalization = KeyboardCapitalization.Sentences,

2573+ ),

2574+ keyboardActions = KeyboardActions(

2575+ onSend = {

2576+ // Mirror the hardware-Enter handler: during a run the soft-keyboard

2577+ // send key must queue the follow-up, not silently drop it. vm.send()

2578+ // returns false while a run is active (beginRun() rejects), so calling

2579+ // onSend() directly here would lose the typed message with no feedback

2580+ // for touch-only users (no hardware Enter path available).

2581+ if (enabled && hasContent) {

2582+ if (running) onQueueFollowUp(value) else onSend()

2583+ }

2584+ },

2585+ ),

2586+ )

2587+ ComposerTrailingButton(

2588+ running = running,

2589+ aborting = aborting,

2590+ canSend = enabled && hasContent,

2591+ canQueue = enabled && value.isNotBlank(),

2592+ onSend = onSend,

2593+ onAbort = onAbort,

2594+ onQueue = { onQueueFollowUp(value) },

2595+ )

2596+ }

2597+ }

2598+ if (showFullScreenEditor) {

2599+ FullScreenEditor(

2600+ value = value,

2601+ onValueChange = onValueChange,

2602+ onDismiss = { showFullScreenEditor = false },

2603+ onSend = {

2604+ showFullScreenEditor = false

2605+ // Mirror the inline composer's behavior: while a run is active a send

2606+ // can't go immediately, so queue the follow-up instead of silently

2607+ // dropping it (vm.send() returns false during a run, which previously

2608+ // lost the typed message with no feedback).

2609+ if (running) onQueueFollowUp(value) else onSend()

2610+ },

2611+ canSend = enabled && hasContent,

2612+ running = running,

2613+ sendOnEnter = sendOnEnter,

2614+ attachments = attachments,

2615+ onRemoveAttachment = onRemoveAttachment,

2616+ staging = staging,

2617+ stagingFileCount = stagingFileCount,

2618+ )

2619+ }

2620+ }

2621+}

2622+

2623+/** Full-screen editor dialog for composing long prompts. Gives the full viewport height to

2624+ * the text field (vs the inline 6-line cap) with a Send button and a collapse action. */

2625+@OptIn(ExperimentalMaterial3Api::class)

2626+@Composable

2627+private fun FullScreenEditor(

2628+ value: String,

2629+ onValueChange: (String) -> Unit,

2630+ onDismiss: () -> Unit,

2631+ onSend: () -> Unit,

2632+ canSend: Boolean,

2633+ running: Boolean = false,

2634+ sendOnEnter: Boolean = false,

2635+ attachments: List<PendingAttachment> = emptyList(),

2636+ onRemoveAttachment: (String) -> Unit = {},

2637+ staging: Boolean = false,

2638+ stagingFileCount: Int = 0,

2639+) {

2640+ androidx.compose.ui.window.Dialog(

2641+ onDismissRequest = onDismiss,

2642+ properties = androidx.compose.ui.window.DialogProperties(usePlatformDefaultWidth = false, decorFitsSystemWindows = false),

2643+ ) {

2644+ // Cap the editor width on large screens (tablets) so the text field doesn't stretch

2645+ // edge-to-edge — matching the chat list's readability rationale. BoxWithConstraints

2646+ // gives the available width so we can center a capped-width column.

2647+ androidx.compose.foundation.layout.BoxWithConstraints(

2648+ modifier = Modifier.fillMaxSize(),

2649+ contentAlignment = Alignment.Center,

2650+ ) {

2651+ val hPad = if (maxWidth > NetworkConfig.twoPaneWidthThresholdDp.dp)

2652+ ((maxWidth - NetworkConfig.composerDialogMaxWidthDp.dp) / 2).coerceAtLeast(0.dp)

2653+ else 0.dp

2654+ Scaffold(

2655+ modifier = Modifier.padding(horizontal = hPad),

2656+ topBar = {

2657+ androidx.compose.material3.TopAppBar(

2658+ title = { Text(stringResource(R.string.compose_editor_title)) },

2659+ navigationIcon = {

2660+ androidx.compose.material3.TextButton(onClick = onDismiss) {

2661+ Text(stringResource(R.string.collapse_editor))

2662+ }

2663+ },

2664+ )

2665+ },

2666+ bottomBar = {

2667+ Surface(tonalElevation = 3.dp) {

2668+ Row(

2669+ modifier = Modifier.fillMaxWidth().imePadding().padding(12.dp),

2670+ horizontalArrangement = Arrangement.End,

2671+ ) {

2672+ androidx.compose.material3.Button(onClick = onSend, enabled = canSend) {

2673+ Text(stringResource(if (running) R.string.queue else R.string.send))

2674+ }

2675+ }

2676+ }

2677+ },

2678+ ) { padding ->

2679+ Column(modifier = Modifier.fillMaxSize().padding(padding)) {

2680+ // Show staged attachments in the full-screen editor too, so a user who staged

2681+ // images then expanded for a long prompt can still see and remove them without

2682+ // collapsing first (mirrors the inline composer's AttachmentStrip).

2683+ AttachmentStrip(attachments, onRemove = onRemoveAttachment, staging = staging, stagingFileCount = stagingFileCount)

2684+ OutlinedTextField(

2685+ value = value,

2686+ onValueChange = { v -> onValueChange(v.take(NetworkConfig.maxDraftLengthChars)) },

2687+ modifier = Modifier

2688+ .fillMaxSize()

2689+ .weight(1f)

2690+ // Honor the "Send on Enter" setting here too, so the full-screen

2691+ // editor matches the inline composer: Enter sends (Shift+Enter

2692+ // newlines) when on; Enter inserts a newline and Ctrl+Enter sends

2693+ // when off. Previously this hard-coded ImeAction.Default and had no

2694+ // key handler, so a hardware-keyboard user got a different behaviour

2695+ // from the inline composer depending on which they happened to open.

2696+ .onPreviewKeyEvent { event ->

2697+ if (event.type != KeyEventType.KeyDown || event.key != Key.Enter) return@onPreviewKeyEvent false

2698+ val send = enterShouldSend(

2699+ enabled = canSend,

2700+ hasContent = canSend,

2701+ sendOnEnter = sendOnEnter,

2702+ shift = event.isShiftPressed,

2703+ ctrl = event.isCtrlPressed,

2704+ )

2705+ if (send) { onSend(); true } else false

2706+ },

2707+ placeholder = { Text(stringResource(R.string.message_placeholder)) },

2708+ maxLines = Int.MAX_VALUE,

2709+ keyboardOptions = KeyboardOptions(

2710+ imeAction = if (sendOnEnter) ImeAction.Send else ImeAction.Default,

2711+ capitalization = KeyboardCapitalization.Sentences,

2712+ ),

2713+ keyboardActions = KeyboardActions(

2714+ onSend = { if (canSend) onSend() },

2715+ ),

2716+ )

2717+ }

2718+ }

2719+ }

2720+ }

2721+}

2722+

2723+/** Whether a hardware Enter keypress should send: never when disabled/empty; otherwise

2724+ * Enter sends (unless Shift) when send-on-Enter is on, else only Ctrl+Enter sends. */

2725+private fun enterShouldSend(

2726+ enabled: Boolean,

2727+ hasContent: Boolean,

2728+ sendOnEnter: Boolean,

2729+ shift: Boolean,

2730+ ctrl: Boolean,

2731+): Boolean = when {

2732+ !enabled || !hasContent -> false

2733+ sendOnEnter -> !shift

2734+ else -> ctrl

2735+}

2736+

2737+/** The composer's trailing button: while a run is active a Stop (with in-flight spinner),

2738+ * preceded by a Queue button when the user has typed a follow-up; otherwise Send. Extracted so

2739+ * [ChatInputBar] stays under the complexity threshold. */

2740+@Composable

2741+private fun ComposerTrailingButton(

2742+ running: Boolean,

2743+ aborting: Boolean,

2744+ canSend: Boolean,

2745+ canQueue: Boolean,

2746+ onSend: () -> Unit,

2747+ onAbort: () -> Unit,

2748+ onQueue: () -> Unit,

2749+) {

2750+ if (running) {

2751+ Row(verticalAlignment = Alignment.CenterVertically) {

2752+ // While a run is active the trailing action is Stop, so the only send affordance is

2753+ // the keyboard's IME action — which is a plain newline when "Send on Enter" is off.

2754+ // That leaves a touch-only user with the setting off no way to queue a follow-up

2755+ // (Ctrl+Enter needs a hardware keyboard). Surface an explicit Queue button whenever

2756+ // there's typed TEXT so queuing is always reachable, without changing the user's

2757+ // Enter-inserts-a-newline preference. Gate on typed text — not the send-oriented

2758+ // canSend, which is also true for an attachment-only composer — because queuing "" just

2759+ // calls setQueuedFollowUp(null), silently cancelling any already-queued follow-up and

2760+ // dropping the staged attachment (queued follow-ups don't carry attachments anyway).

2761+ if (canQueue) {

2762+ IconButton(

2763+ onClick = onQueue,

2764+ modifier = Modifier.testTag("queue_button"),

2765+ ) {

2766+ // PlaylistAdd reads as "add to a queue/list" more clearly than a clock

2767+ // icon (which can be read as "snooze" or "later"), and isn't confused with

2768+ // the Send action sitting right beside the Stop button.

2769+ Icon(

2770+ Icons.AutoMirrored.Filled.PlaylistAdd,

2771+ contentDescription = stringResource(R.string.queue_followup),

2772+ )

2773+ }

2774+ }

2775+ // Show a spinner while the abort REST call is in flight so the user sees the stop

2776+ // was sent, and disable to prevent a double-tap.

2777+ IconButton(

2778+ onClick = onAbort,

2779+ enabled = !aborting,

2780+ modifier = Modifier.padding(start = 4.dp).testTag("stop_button"),

2781+ ) {

2782+ if (aborting) {

2783+ val stopLabel = stringResource(R.string.stop)

2784+ CircularProgressIndicator(

2785+ Modifier.size(18.dp).semantics { contentDescription = stopLabel },

2786+ strokeWidth = 2.dp,

2787+ )

2788+ } else {

2789+ Icon(Icons.Filled.Stop, contentDescription = stringResource(R.string.stop))

2790+ }

2791+ }

2792+ }

2793+ } else {

2794+ IconButton(

2795+ onClick = onSend,

2796+ enabled = canSend,

2797+ modifier = Modifier.padding(start = 4.dp).testTag("send_button"),

2798+ ) {

2799+ // Tint the send icon with primary when there's content to send so the commit action

2800+ // draws the eye; muted otherwise. A plain enabled/disabled flip is easy to miss.

2801+ Icon(

2802+ Icons.AutoMirrored.Filled.Send,

2803+ contentDescription = stringResource(R.string.send),

2804+ tint = if (canSend) MaterialTheme.colorScheme.primary

2805+ else MaterialTheme.colorScheme.onSurfaceVariant,

2806+ )

2807+ }

2808+ }

2809+}

2810+

2811+@OptIn(androidx.compose.foundation.layout.ExperimentalLayoutApi::class)

2812+@Composable

2813+private fun EmptyConversation(

2814+ onSuggestion: (String) -> Unit,

2815+ modifier: Modifier = Modifier,

2816+) {

2817+ // A few example prompts so a first-time user has a one-tap path to their first

2818+ // message instead of staring at a blank input. Tapping a chip fills the draft

2819+ // (without sending) so the user can edit it before sending.

2820+ val suggestions = remember {

2821+ listOf(

2822+ R.string.empty_chat_suggest_1,

2823+ R.string.empty_chat_suggest_2,

2824+ R.string.empty_chat_suggest_3,

2825+ )

2826+ }

2827+ Column(

2828+ modifier = modifier.padding(32.dp),

2829+ horizontalAlignment = Alignment.CenterHorizontally,

2830+ ) {

2831+ Icon(

2832+ Icons.Filled.AutoAwesome,

2833+ contentDescription = null,

2834+ modifier = Modifier.size(48.dp),

2835+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

2836+ )

2837+ Spacer(Modifier.size(16.dp))

2838+ Text(

2839+ stringResource(R.string.empty_chat_title),

2840+ style = MaterialTheme.typography.titleMedium,

2841+ )

2842+ Spacer(Modifier.size(8.dp))

2843+ Text(

2844+ stringResource(R.string.empty_chat_hint),

2845+ style = MaterialTheme.typography.bodyMedium,

2846+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2847+ )

2848+ Spacer(Modifier.size(20.dp))

2849+ // Suggestion chips wrap across rows on narrow screens instead of stacking full-width,

2850+ // so a longer localized prompt doesn't push the chips off-screen on a phone.

2851+ FlowRow(

2852+ modifier = Modifier.fillMaxWidth(),

2853+ horizontalArrangement = Arrangement.spacedBy(8.dp),

2854+ verticalArrangement = Arrangement.spacedBy(8.dp),

2855+ ) {

2856+ suggestions.forEach { resId ->

2857+ val text = stringResource(resId)

2858+ androidx.compose.material3.AssistChip(

2859+ onClick = { onSuggestion(text) },

2860+ label = { Text(text, style = MaterialTheme.typography.bodyMedium) },

2861+ )

2862+ }

2863+ }

2864+ }

2865+}

2866+

2867+/** A banner shown while a revert checkpoint is active, offering an Undo (unrevert). When the

2868+ * server included a diff of the revert, a collapsible "Show what changed" affordance reveals

2869+ * it inline via [DiffView] so the user can see what was rolled back before deciding to undo. */

2870+@Composable

2871+private fun RevertBanner(diff: String?, isEditing: Boolean, onUndo: () -> Unit) {

2872+ val haptics = LocalHapticFeedback.current

2873+ var showDiff by rememberSaveable { mutableStateOf(false) }

2874+ val expandMotion = rememberVisibilityTransitions()

2875+ Surface(

2876+ color = MaterialTheme.colorScheme.tertiaryContainer,

2877+ tonalElevation = 2.dp,

2878+ modifier = Modifier.fillMaxWidth(),

2879+ ) {

2880+ Column {

2881+ Row(

2882+ modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 4.dp, bottom = 4.dp),

2883+ verticalAlignment = Alignment.CenterVertically,

2884+ horizontalArrangement = Arrangement.SpaceBetween,

2885+ ) {

2886+ Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.weight(1f)) {

2887+ Icon(

2888+ if (isEditing) Icons.Filled.Edit else Icons.Filled.Restore,

2889+ contentDescription = null,

2890+ tint = MaterialTheme.colorScheme.onTertiaryContainer,

2891+ modifier = Modifier.size(18.dp),

2892+ )

2893+ Text(

2894+ stringResource(if (isEditing) R.string.editing_banner else R.string.reverted_banner),

2895+ style = MaterialTheme.typography.bodySmall,

2896+ color = MaterialTheme.colorScheme.onTertiaryContainer,

2897+ modifier = Modifier.padding(start = 8.dp),

2898+ )

2899+ // "Show what changed" toggle, shown only when the server provided a diff.

2900+ // Collapsible so the banner stays compact by default; a user curious about

2901+ // what the revert rolled back can expand it inline without leaving the chat.

2902+ if (!diff.isNullOrBlank()) {

2903+ TextButton(

2904+ onClick = {

2905+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2906+ showDiff = !showDiff

2907+ },

2908+ contentPadding = androidx.compose.foundation.layout.PaddingValues(start = 8.dp, end = 4.dp),

2909+ ) {

2910+ Icon(

2911+ if (showDiff) Icons.Filled.ExpandLess else Icons.Filled.ExpandMore,

2912+ contentDescription = null,

2913+ modifier = Modifier.size(16.dp),

2914+ )

2915+ Text(

2916+ stringResource(if (showDiff) R.string.revert_hide_diff else R.string.revert_show_diff),

2917+ style = MaterialTheme.typography.labelSmall,

2918+ modifier = Modifier.padding(start = 4.dp),

2919+ )

2920+ }

2921+ }

2922+ }

2923+ TextButton(onClick = {

2924+ // Haptic on undo to match the other destructive/important confirmations: a

2925+ // revert restores potentially hundreds of hidden messages.

2926+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2927+ onUndo()

2928+ }) { Text(stringResource(R.string.undo)) }

2929+ }

2930+ // The diff render lives inside the banner's Surface so it inherits the tertiary

2931+ // tonal container and reads as part of the banner, not a floating panel.

2932+ if (!diff.isNullOrBlank()) {

2933+ AnimatedVisibility(

2934+ visible = showDiff,

2935+ enter = expandMotion.enter,

2936+ exit = expandMotion.exit,

2937+ ) {

2938+ Column(modifier = Modifier.padding(start = 12.dp, end = 12.dp, bottom = 8.dp)) {

2939+ Text(

2940+ stringResource(R.string.revert_diff_header),

2941+ style = MaterialTheme.typography.labelSmall,

2942+ color = MaterialTheme.colorScheme.onTertiaryContainer,

2943+ modifier = Modifier.padding(bottom = 4.dp),

2944+ )

2945+ DiffView(diff, saveKey = "revertDiff")

2946+ }

2947+ }

2948+ }

2949+ }

2950+ }

2951+}

2952+

2953+/** A dismissible preview card shown above the composer when the user quote-replied to a

2954+ * message. Displays the quoted text (truncated) with a Cancel affordance so the user can

2955+ * abort the quote without digging into the draft to strip the `>`-prefixed lines. Mirrors

2956+ * the Discord/Slack quote-preview pattern. */

2957+@Composable

2958+private fun QuoteReplyBanner(quotedText: String, onCancel: () -> Unit) {

2959+ val haptics = LocalHapticFeedback.current

2960+ Surface(

2961+ color = MaterialTheme.colorScheme.secondaryContainer,

2962+ tonalElevation = 2.dp,

2963+ modifier = Modifier.fillMaxWidth(),

2964+ ) {

2965+ Row(

2966+ modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 6.dp, bottom = 6.dp),

2967+ verticalAlignment = Alignment.Top,

2968+ ) {

2969+ Icon(

2970+ Icons.Filled.FormatQuote,

2971+ contentDescription = null,

2972+ tint = MaterialTheme.colorScheme.onSecondaryContainer,

2973+ modifier = Modifier.size(18.dp).padding(top = 2.dp),

2974+ )

2975+ Column(modifier = Modifier.weight(1f).padding(start = 8.dp)) {

2976+ Text(

2977+ stringResource(R.string.quote_reply_banner),

2978+ style = MaterialTheme.typography.labelSmall,

2979+ color = MaterialTheme.colorScheme.onSecondaryContainer,

2980+ )

2981+ Text(

2982+ quotedText,

2983+ style = MaterialTheme.typography.bodySmall,

2984+ color = MaterialTheme.colorScheme.onSecondaryContainer,

2985+ maxLines = 2,

2986+ overflow = TextOverflow.Ellipsis,

2987+ )

2988+ }

2989+ IconButton(onClick = {

2990+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2991+ onCancel()

2992+ }) {

2993+ Icon(

2994+ Icons.Filled.Close,

2995+ contentDescription = stringResource(R.string.cancel_quote_reply),

2996+ tint = MaterialTheme.colorScheme.onSecondaryContainer,

2997+ modifier = Modifier.size(18.dp),

2998+ )

2999+ }

3000+ }

3001+ }

3002+}

3003+

3004+/** A banner shown while messages composed offline are queued in the outbox, with a

3005+ * "Send now" nudge and a discard. Shows a spinner while the queue is flushing. */

3006+@Composable

3007+private fun OutboxBanner(

3008+ count: Int,

3009+ sending: Boolean,

3010+ onFlush: () -> Unit,

3011+ onDiscard: () -> Unit,

3012+) {

3013+ var showDiscardConfirm by rememberSaveable { mutableStateOf(false) }

3014+ Surface(

3015+ color = MaterialTheme.colorScheme.secondaryContainer,

3016+ tonalElevation = 2.dp,

3017+ modifier = Modifier.fillMaxWidth(),

3018+ ) {

3019+ Row(

3020+ modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 4.dp, bottom = 4.dp),

3021+ verticalAlignment = Alignment.CenterVertically,

3022+ horizontalArrangement = Arrangement.SpaceBetween,

3023+ ) {

3024+ Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.weight(1f)) {

3025+ if (sending) {

3026+ CircularProgressIndicator(

3027+ Modifier.size(16.dp),

3028+ strokeWidth = 2.dp,

3029+ color = MaterialTheme.colorScheme.onSecondaryContainer,

3030+ )

3031+ Spacer(Modifier.size(8.dp))

3032+ }

3033+ Text(

3034+ if (sending) {

3035+ stringResource(R.string.outbox_sending)

3036+ } else {

3037+ val res = if (count == 1) R.string.outbox_pending_one else R.string.outbox_pending_many

3038+ stringResource(res, count)

3039+ },

3040+ style = MaterialTheme.typography.bodySmall,

3041+ color = MaterialTheme.colorScheme.onSecondaryContainer,

3042+ )

3043+ }

3044+ if (!sending) {

3045+ val haptics = LocalHapticFeedback.current

3046+ TextButton(onClick = onFlush) { Text(stringResource(R.string.outbox_flush)) }

3047+ TextButton(onClick = {

3048+ // Confirm before discarding all queued messages (irreversible), matching

3049+ // the confirmation pattern used by deleteSession and other destructive

3050+ // actions. Previously a single tap dropped every queued message.

3051+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)

3052+ showDiscardConfirm = true

3053+ }) {

3054+ Text(stringResource(R.string.outbox_discard_all), color = MaterialTheme.colorScheme.error)

3055+ }

3056+ }

3057+ }

3058+ }

3059+ if (showDiscardConfirm) {

3060+ androidx.compose.material3.AlertDialog(

3061+ onDismissRequest = { showDiscardConfirm = false },

3062+ title = { Text(stringResource(R.string.discard_queued_title)) },

3063+ text = { Text(stringResource(R.string.discard_queued_text, count)) },

3064+ confirmButton = {

3065+ androidx.compose.material3.TextButton(onClick = {

3066+ showDiscardConfirm = false

3067+ onDiscard()

3068+ }) { Text(stringResource(R.string.discard)) }

3069+ },

3070+ dismissButton = {

3071+ androidx.compose.material3.TextButton(onClick = { showDiscardConfirm = false }) {

3072+ Text(stringResource(R.string.cancel))

3073+ }

3074+ },

3075+ )

3076+ }

3077+}

3078+

3079+/** Prompt for a one-off shell command to run in the session's worktree. */

3080+@Composable

3081+private fun ShellCommandDialog(onDismiss: () -> Unit, onRun: (String) -> Unit) {

3082+ var command by rememberSaveable { mutableStateOf("") }

3083+ AlertDialog(

3084+ onDismissRequest = onDismiss,

3085+ title = { Text(stringResource(R.string.run_shell_command)) },

3086+ text = {

3087+ OutlinedTextField(

3088+ value = command,

3089+ onValueChange = { command = it },

3090+ modifier = Modifier.fillMaxWidth(),

3091+ placeholder = { Text(stringResource(R.string.shell_command_hint)) },

3092+ label = { Text(stringResource(R.string.shell_command_label)) },

3093+ singleLine = true,

3094+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),

3095+ keyboardActions = KeyboardActions(onDone = { if (command.isNotBlank()) onRun(command.trim()) }),

3096+ )

3097+ },

3098+ confirmButton = {

3099+ TextButton(

3100+ onClick = { if (command.isNotBlank()) onRun(command.trim()) },

3101+ enabled = command.isNotBlank(),

3102+ ) { Text(stringResource(R.string.run)) }

3103+ },

3104+ dismissButton = { TextButton(onClick = onDismiss) { Text(stringResource(R.string.cancel)) } },

3105+ )

3106+}

3107+

3108+/**

3109+ * Change signal for the auto-scroll-on-stream watcher. Primitive fields avoid the

3110+ * boxing `Triple<Int, Int, Boolean>` would impose on every snapshot evaluation, and

3111+ * equality is structural so `snapshotFlow` emits only when something relevant changes.

3112+ */

3113+private data class AutoScrollSignal(val size: Int, val lastTextLength: Int, val pinned: Boolean)

3114+

3115+/** Length of the streaming content carried by [part], driving auto-scroll as it grows.

3116+ * Covers text, reasoning, and tool output so a pinned view keeps following non-text

3117+ * streaming, not just plain assistant text. O(1). */

3118+private fun streamingContentLength(part: Part?): Int = when (part) {

3119+ is TextPart -> part.text.length

3120+ is ReasoningPart -> part.text.length

3121+ is ToolPart -> when (val st = part.state) {

3122+ is ToolCompleted -> st.output?.length ?: 0

3123+ is ToolError -> st.error?.length ?: 0

3124+ is ToolRunning -> st.title?.length ?: 0

3125+ else -> 0

3126+ }

3127+ else -> 0

3128+}

3129+

3130+/** Rename dialog for the currently-open session. Mirrors the SessionListScreen rename

3131+ * dialog but lives in the chat screen so the user can rename without backing out to

3132+ * the list. Pre-filled with the current title; the cap matches the list dialog. */

3133+@Composable

3134+private fun RenameSessionChatDialog(

3135+ initialTitle: String,

3136+ onDismiss: () -> Unit,

3137+ onConfirm: (String) -> Unit,

3138+) {

3139+ // Seed the field once (no key input) so a later external title change — e.g. opencode

3140+ // auto-generating a session title after the first prompt, arriving via SessionUpdated —

3141+ // doesn't re-initialize the box and discard the user's in-progress edit.

3142+ var title by rememberSaveable { mutableStateOf(initialTitle) }

3143+ AlertDialog(

3144+ onDismissRequest = onDismiss,

3145+ title = { Text(stringResource(R.string.rename_session_chat)) },

3146+ text = {

3147+ OutlinedTextField(

3148+ value = title,

3149+ onValueChange = { v -> title = v.take(NetworkConfig.maxSessionTitleChars) },

3150+ modifier = Modifier.fillMaxWidth(),

3151+ placeholder = { Text(stringResource(R.string.session_title_hint)) },

3152+ label = { Text(stringResource(R.string.rename_session_chat)) },

3153+ singleLine = true,

3154+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),

3155+ keyboardActions = KeyboardActions(onDone = { if (title.isNotBlank()) onConfirm(title.trim()) }),

3156+ )

3157+ },

3158+ confirmButton = {

3159+ TextButton(onClick = { if (title.isNotBlank()) onConfirm(title.trim()) }, enabled = title.isNotBlank()) {

3160+ Text(stringResource(R.string.save))

3161+ }

3162+ },

3163+ dismissButton = {

3164+ TextButton(onClick = onDismiss) { Text(stringResource(R.string.cancel)) }

3165+ },

3166+ )

3167+}

3168+

3169+/**

3170+ * A single item in the chat message list — either a [Message] bubble or a day

3171+ * [Separator] inserted before the first message of a new day. The separator shifts

3172+ * the LazyColumn indices vs. the raw messages list, so scroll-target math must use

3173+ * the [List] of these items (not `messages.size`/`lastIndex`).

3174+ */

3175+private sealed interface MessageListItem {

3176+ val key: Any

3177+ val contentType: Any

3178+

3179+ data class Message(

3180+ val message: MessageWithParts,

3181+ override val key: Any,

3182+ // Whether this is the first message in a consecutive run of the same speaker (role).

3183+ // Used to suppress the assistant avatar/header on follow-up messages in the same run,

3184+ // reducing visual noise in tool-heavy conversations where many assistant messages

3185+ // appear back-to-back. A separator or a role change resets the flag.

3186+ val isFirstOfSpeaker: Boolean,

3187+ ) : MessageListItem {

3188+ override val contentType: Any get() = message.info::class

3189+ }

3190+

3191+ data class Separator(val label: String, val ordinal: Int) : MessageListItem {

3192+ // Key on the day-occurrence ordinal, not the label: two non-contiguous groups

3193+ // can share a label (e.g. an untimestamped message — empty label — between two

3194+ // same-day messages, or two untimestamped groups), and a label-only key would

3195+ // then collide, which makes LazyColumn throw on duplicate keys. The ordinal is

3196+ // stable for a given message ordering so slots aren't needlessly recreated.

3197+ override val key: Any get() = "sep_${ordinal}_$label"

3198+ // Separators share a contentType so the LazyColumn can recycle their slots.

3199+ override val contentType: Any get() = "separator"

3200+ }

3201+}

3202+

3203+/**

3204+ * Build the interleaved list of [MessageListItem]s for the message list, inserting a

3205+ * [MessageListItem.Separator] before the first message of each new calendar day. Uses

3206+ * the message's `time.created` (falling back to `updated` then `completed`) to bucket.

3207+ * Messages with no timestamp are grouped under an empty-label separator only if they

3208+ * start the list, so a server that omits timestamps doesn't suppress the first divider.

3209+ *

3210+ * [todayLabel]/[yesterdayLabel] are resolved by the caller (a @Composable can't call

3211+ * stringResource from inside this plain function) and used for the "Today"/"Yesterday"

3212+ * labels; older days fall back to a locale-stable medium-date format.

3213+ */

3214+private fun buildMessageListItems(

3215+ messages: List<MessageWithParts>,

3216+ todayLabel: String,

3217+ yesterdayLabel: String,

3218+): List<MessageListItem> {

3219+ if (messages.isEmpty()) return emptyList()

3220+ val today = java.time.LocalDate.now(java.time.ZoneId.systemDefault())

3221+ val dateFmt = mediumDateFormat()

3222+ val result = ArrayList<MessageListItem>(messages.size + 4)

3223+ val seenKeys = HashSet<String>(messages.size * 2)

3224+ var lastDayKey: String? = null

3225+ var sepOrdinal = 0

3226+ var emptyIdOrdinal = 0

3227+ var first = true

3228+ // Track the previous message's role to detect consecutive same-speaker runs, so the

3229+ // avatar/header can be suppressed on follow-up messages in the same run. A null means

3230+ // "no previous message or a separator just interrupted the run", both of which make the

3231+ // next message the first of its group.

3232+ var prevRoleClass: kotlin.reflect.KClass<out soy.iko.opencode.data.model.MessageInfo>? = null

3233+ for (message in messages) {

3234+ val ts = message.info.time?.created ?: message.info.time?.updated ?: message.info.time?.completed

3235+ val dayKey = ts?.let { dayKey(it) } ?: ""

3236+ // Emit a separator before the very first message (so a leading un-timestamped message

3237+ // still gets the first divider, empty label and all), and thereafter only when crossing

3238+ // into a new NON-empty calendar day. An un-timestamped message mid-list (empty key)

3239+ // neither emits its own separator nor resets the day — otherwise a following same-day

3240+ // message would see a "" -> "<today>" transition and emit a duplicate "Today" header.

3241+ if (first || (dayKey.isNotEmpty() && dayKey != lastDayKey)) {

3242+ result.add(MessageListItem.Separator(dayLabel(dayKey, ts ?: 0L, today, todayLabel, yesterdayLabel, dateFmt), sepOrdinal++))

3243+ // A date separator visually breaks a speaker run, so the next message is treated

3244+ // as the first of its group (even if the same role continues across the day break).

3245+ prevRoleClass = null

3246+ }

3247+ if (dayKey.isNotEmpty()) lastDayKey = dayKey

3248+ first = false

3249+ // Most messages have a unique non-empty id. An unrecognized-role message can carry an

3250+ // empty id — and the reducer intentionally keeps several such messages as distinct

3251+ // holders — so give each a stable synthetic key and defensively de-collide any remaining

3252+ // duplicate; otherwise LazyColumn throws on a duplicate key and the whole screen crashes.

3253+ var key = message.info.id.ifEmpty { "msg-empty-${emptyIdOrdinal++}" }

3254+ if (!seenKeys.add(key)) {

3255+ var suffix = 1

3256+ while (!seenKeys.add("$key#$suffix")) suffix++

3257+ key = "$key#$suffix"

3258+ }

3259+ val roleClass = message.info::class

3260+ val isFirstOfSpeaker = prevRoleClass == null || roleClass != prevRoleClass

3261+ result.add(MessageListItem.Message(message, key, isFirstOfSpeaker))

3262+ prevRoleClass = roleClass

3263+ }

3264+ return result

3265+}

3266+

3267+/**

3268+ * A stable bucket key for a timestamp's calendar day (epoch-days as a string).

3269+ *

3270+ * [buildMessageListItems] re-runs on every streaming snapshot (the memo is keyed on the

3271+ * whole `messages` list, which must stay so the live message's fresh parts render), so a

3272+ * naive implementation would re-allocate an `Instant`/`ZonedDateTime`/`LocalDate` for

3273+ * every message on every token. Message timestamps are immutable once assigned, so we

3274+ * memoize the parse per epoch-millis: after the first snapshot, each unchanged message is

3275+ * a cheap hash lookup. Bounded; only touched on the main thread during composition.

3276+ *

3277+ * Backed by a [ConcurrentHashMap] (not an access-ordered LinkedHashMap): the previous

3278+ * synchronized access-ordered LinkedHashMap reordered its linked list node on every

3279+ * `getOrPut` hit, which is real work multiplied by N messages × ~20 snapshots/sec during

3280+ * streaming. A ConcurrentHashMap has no access-order bookkeeping and is lock-free for

3281+ * reads, so the common case (a hit) is a single volatile read + hash probe.

3282+ * [removeEldestEntry] is not available on ConcurrentHashMap, so the bound is enforced via

3283+ * a size check in [dayKey]: once the cap ([DAY_KEY_CACHE_MAX]) is reached the cache is

3284+ * cleared; in practice the cache size is bounded by the number of distinct message

3285+ * timestamps in a session (≤ [NetworkConfig.maxInMemoryMessages]) and the cap is a

3286+ * safety valve for the process-lifetime cache across many sessions.

3287+ */

3288+private val dayKeyCache = java.util.concurrent.ConcurrentHashMap<Long, String>(256)

3289+

3290+/** Upper bound on [dayKeyCache] entries. Message timestamps are immutable once assigned, so

3291+ * the natural bound is the number of distinct timestamps in a session (≤

3292+ * [NetworkConfig.maxInMemoryMessages]); this cap is a safety valve for the process-lifetime

3293+ * cache across many sessions, keeping a runaway leak from accumulating unbounded memory. */

3294+private const val DAY_KEY_CACHE_MAX = 1024

3295+

3296+private fun dayKey(epochMillis: Long): String {

3297+ val cached = dayKeyCache[epochMillis]

3298+ if (cached != null) return cached

3299+ val value = java.time.Instant.ofEpochMilli(epochMillis)

3300+ .atZone(java.time.ZoneId.systemDefault()).toLocalDate().toEpochDay().toString()

3301+ // Guard the size under the cache's concurrency: only the first thread to see the cap

3302+ // exceeded evicts (draining is O(N) but rare and idempotent), so concurrent inserts

3303+ // past the cap don't each pay the scan. computeIfAbsent would hold the segment lock

3304+ // during the (cheap) date computation but can't express the size guard, so use put

3305+ // after the fact; a duplicate put of the same key/value is harmless.

3306+ if (dayKeyCache.size >= DAY_KEY_CACHE_MAX) dayKeyCache.clear()

3307+ dayKeyCache[epochMillis] = value

3308+ return value

3309+}

3310+

3311+// The medium-date formatter is an ICU locale lookup; cache one instance instead of

3312+// allocating a fresh one per buildMessageListItems call, rebuilding only if the default

3313+// locale changes at runtime. Main-thread-only, so no synchronization is needed.

3314+private var cachedDateFmt: java.text.DateFormat? = null

3315+private var cachedDateFmtLocale: java.util.Locale? = null

3316+

3317+private fun mediumDateFormat(): java.text.DateFormat {

3318+ val locale = java.util.Locale.getDefault()

3319+ val existing = cachedDateFmt

3320+ if (existing != null && cachedDateFmtLocale == locale) return existing

3321+ return java.text.DateFormat.getDateInstance(java.text.DateFormat.MEDIUM).also {

3322+ cachedDateFmt = it

3323+ cachedDateFmtLocale = locale

3324+ }

3325+}

3326+

3327+/**

3328+ * Resolve a day-key back to a human-readable label. "Today" / "Yesterday" for the

3329+ * recent days, otherwise a locale-stable medium-date format. Returns an empty string

3330+ * when [dayKey] is empty (no timestamp) so no separator is rendered for un-timestamped

3331+ * messages.

3332+ */

3333+private fun dayLabel(

3334+ dayKey: String,

3335+ ts: Long,

3336+ today: java.time.LocalDate,

3337+ todayLabel: String,

3338+ yesterdayLabel: String,

3339+ dateFmt: java.text.DateFormat,

3340+): String {

3341+ if (dayKey.isEmpty()) return ""

3342+ val epochDay = dayKey.toLongOrNull() ?: return ""

3343+ val date = java.time.LocalDate.ofEpochDay(epochDay)

3344+ return when {

3345+ date == today -> todayLabel

3346+ date == today.minusDays(1) -> yesterdayLabel

3347+ else -> dateFmt.format(java.util.Date(ts))

3348+ }

3349+}

3350+

3351+/**

3352+ * A centered day divider in the message list. Renders nothing for an empty label

3353+ * (the no-timestamp case) so un-timestamped messages don't get a stray blank divider.

3354+ */

3355+@Composable

3356+private fun DateSeparator(label: String) {

3357+ if (label.isBlank()) return

3358+ Row(

3359+ modifier = Modifier.fillMaxWidth(),

3360+ horizontalArrangement = Arrangement.Center,

3361+ ) {

3362+ Surface(

3363+ color = MaterialTheme.colorScheme.surfaceVariant,

3364+ shape = MaterialTheme.shapes.small,

3365+ // Marked as a heading so TalkBack users can navigate day-by-day with the

3366+ // heading-skip gesture — the canonical affordance for date dividers in a list.

3367+ modifier = Modifier.semantics(mergeDescendants = true) { heading() },

3368+ ) {

3369+ Text(

3370+ label,

3371+ style = MaterialTheme.typography.labelSmall,

3372+ color = MaterialTheme.colorScheme.onSurfaceVariant,

3373+ modifier = Modifier.padding(horizontal = 12.dp, vertical = 4.dp),

3374+ )

3375+ }

3376+ }

3377+}

3378+

3379+/** Skeleton placeholder bubbles for the chat loading and run-started states. Alpha pulses

3380+ * (gated by reduced-motion) to convey ongoing work; the column carries the a11y label so

3381+ * TalkBack announces "Loading" instead of reading the skeleton bars. Rendered as a

3382+ * [BoxScope] extension so it can align itself to the top center of its host box. */

3383+@Composable

3384+private fun androidx.compose.foundation.layout.BoxScope.ChatSkeleton(topPad: androidx.compose.ui.unit.Dp) {

3385+ val loadingLabel = stringResource(R.string.loading)

3386+ val reducedMotion = LocalReducedMotion.current

3387+ val transition = rememberInfiniteTransition(label = "skeleton")

3388+ val pulse by transition.animateFloat(

3389+ initialValue = 0.35f,

3390+ targetValue = 0.7f,

3391+ animationSpec = infiniteRepeatable(tween(900), RepeatMode.Reverse),

3392+ label = "skeletonAlpha",

3393+ )

3394+ val skeletonAlpha = if (reducedMotion) 0.5f else pulse

3395+ val skeletonColor = MaterialTheme.colorScheme.surfaceVariant

3396+ @Composable

3397+ fun bar(widthFraction: Float) {

3398+ Box(

3399+ Modifier

3400+ .fillMaxWidth(widthFraction)

3401+ .height(14.dp)

3402+ .clip(RoundedCornerShape(4.dp))

3403+ .background(skeletonColor)

3404+ .alpha(skeletonAlpha),

3405+ )

3406+ }

3407+ Column(

3408+ modifier = Modifier

3409+ .align(Alignment.TopCenter)

3410+ .padding(top = topPad)

3411+ .padding(16.dp)

3412+ .fillMaxWidth()

3413+ .semantics { contentDescription = loadingLabel },

3414+ verticalArrangement = Arrangement.spacedBy(14.dp),

3415+ ) {

3416+ repeat(4) { i ->

3417+ val left = i % 2 == 0

3418+ Row(

3419+ modifier = Modifier.fillMaxWidth(),

3420+ horizontalArrangement = if (left) Arrangement.Start else Arrangement.End,

3421+ ) {

3422+ Column(

3423+ modifier = Modifier.fillMaxWidth(if (left) 0.7f else 0.55f),

3424+ verticalArrangement = Arrangement.spacedBy(6.dp),

3425+ ) {

3426+ bar(1f)

3427+ bar(0.8f)

3428+ }

3429+ }

3430+ }

3431+ }

3432+}

app/src/main/java/soy/iko/opencode/ui/chat/ChatViewModel.ktnew file+2025

@@ -0,0 +1,2025 @@

1+package soy.iko.opencode.ui.chat

2+

3+import androidx.lifecycle.ViewModel

4+import androidx.lifecycle.viewModelScope

5+import soy.iko.opencode.data.model.Agent

6+import soy.iko.opencode.data.model.Command

7+import soy.iko.opencode.data.model.FilePromptPart

8+import soy.iko.opencode.data.model.MessageWithParts

9+import soy.iko.opencode.data.model.ModelOption

10+import soy.iko.opencode.data.model.UserMessage

11+import soy.iko.opencode.data.model.Permission

12+import soy.iko.opencode.data.model.PermissionReplied

13+import soy.iko.opencode.data.model.PermissionResponse

14+import soy.iko.opencode.data.model.PermissionUpdated

15+import soy.iko.opencode.data.model.SessionDeleted

16+import soy.iko.opencode.data.model.SessionUpdated

17+import soy.iko.opencode.data.model.TextPart

18+import soy.iko.opencode.data.model.TodoItem

19+import soy.iko.opencode.data.model.TodoPlanCache

20+import soy.iko.opencode.data.model.currentTodoPlan

21+import soy.iko.opencode.data.model.defaultOption

22+import soy.iko.opencode.data.model.toOptions

23+import soy.iko.opencode.data.network.EventStreamClient

24+import soy.iko.opencode.data.network.NetworkConfig

25+import soy.iko.opencode.data.repo.OutboxMessage

26+import soy.iko.opencode.data.repo.SessionRepository

27+import soy.iko.opencode.di.AppContainer

28+import soy.iko.opencode.R

29+import soy.iko.opencode.util.runCatchingCancellable

30+import soy.iko.opencode.util.safeExceptionSummary

31+import android.util.Log

32+import kotlinx.coroutines.ExperimentalCoroutinesApi

33+import kotlinx.coroutines.channels.BufferOverflow

34+import kotlinx.coroutines.channels.Channel

35+import kotlinx.coroutines.flow.Flow

36+import kotlinx.coroutines.flow.MutableSharedFlow

37+import kotlinx.coroutines.flow.MutableStateFlow

38+import kotlinx.coroutines.flow.SharedFlow

39+import kotlinx.coroutines.flow.SharingStarted

40+import kotlinx.coroutines.flow.StateFlow

41+import kotlinx.coroutines.flow.asSharedFlow

42+import kotlinx.coroutines.flow.asStateFlow

43+import kotlinx.coroutines.flow.receiveAsFlow

44+import kotlinx.coroutines.CancellationException

45+import kotlinx.coroutines.flow.collectLatest

46+import kotlinx.coroutines.flow.combine

47+import kotlinx.coroutines.flow.debounce

48+import kotlinx.coroutines.flow.distinctUntilChanged

49+import kotlinx.coroutines.flow.drop

50+import kotlinx.coroutines.flow.first

51+import kotlinx.coroutines.flow.filterIsInstance

52+import kotlinx.coroutines.flow.flatMapLatest

53+import kotlinx.coroutines.flow.flowOf

54+import kotlinx.coroutines.flow.flowOn

55+import kotlinx.coroutines.flow.map

56+import kotlinx.coroutines.flow.merge

57+import kotlinx.coroutines.flow.onEach

58+import kotlinx.coroutines.flow.retryWhen

59+import kotlinx.coroutines.flow.stateIn

60+import kotlinx.coroutines.flow.update

61+import kotlinx.coroutines.Dispatchers

62+import kotlinx.coroutines.Job

63+import kotlinx.coroutines.NonCancellable

64+import kotlinx.coroutines.delay

65+import kotlinx.coroutines.isActive

66+import kotlinx.coroutines.currentCoroutineContext

67+import kotlinx.coroutines.launch

68+import kotlinx.coroutines.withContext

69+

70+/**

71+ * A user-facing error to surface as a snackbar. [retryable] is true only for a failed

72+ * message *send* (whose draft is held in [ChatViewModel.failedDraft]); the snackbar attaches

73+ * a Retry action solely for those so an unrelated error (e.g. a message-load failure) can't

74+ * inherit a Retry that silently re-submits the last prompt.

75+ */

76+data class ChatError(val message: String, val retryable: Boolean = false)

77+

78+/**

79+ * Progress of the current permission within a burst of requests. [total] is the max number

80+ * simultaneously pending since the queue was last empty; [position] advances as the user clears

81+ * the backlog. A [total] of 0/1 means there's no meaningful backlog to surface.

82+ */

83+@androidx.compose.runtime.Immutable

84+data class PermissionProgress(val position: Int, val total: Int)

85+

86+/**

87+ * An attachment staged to send with the next prompt. [previewModel] is a Coil-loadable model

88+ * for the thumbnail (the source content Uri, as a string) for images, or null for non-image

89+ * files (rendered with a generic icon). [part] is the wire form (a base64 data URL) sent to

90+ * the server.

91+ */

92+@androidx.compose.runtime.Immutable

93+data class PendingAttachment(

94+ val id: String,

95+ val name: String,

96+ val mime: String,

97+ val previewModel: Any?,

98+ val part: FilePromptPart,

99+) {

100+ val isImage: Boolean get() = mime.startsWith("image/")

101+}

102+

103+/** Reduce a staged attachment to its persistable form (the self-contained data URL). */

104+private fun PendingAttachment.toPersisted() =

105+ soy.iko.opencode.data.repo.PersistedAttachment(id, name, mime, part.url, part.filename)

106+

107+/** Rebuild a staged attachment from persistence. The base64 data URL doubles as the Coil

108+ * preview model for images (the original content Uri didn't survive the process restart). */

109+private fun soy.iko.opencode.data.repo.PersistedAttachment.toPending() = PendingAttachment(

110+ id = id,

111+ name = name,

112+ mime = mime,

113+ previewModel = if (mime.startsWith("image/")) url else null,

114+ part = FilePromptPart(mime = mime, url = url, filename = filename),

115+)

116+

117+// Large by design: this VM owns the whole chat surface (streaming, drafts, attachments,

118+// catalogs, permissions, revert/edit, sharing, summarize/init/shell, TTS wiring). It's

119+// already grandfathered for TooManyFunctions in the detekt baseline; the class-size rule is

120+// suppressed for the same reason. A future split into sub-controllers is tracked separately.

121+@Suppress("LargeClass")

122+@OptIn(ExperimentalCoroutinesApi::class, kotlinx.coroutines.FlowPreview::class)

123+class ChatViewModel(

124+ private val container: AppContainer,

125+ private val sessionId: String,

126+) : ViewModel() {

127+

128+ private val connection get() = container.activeConnection.value

129+

130+ val connected: Boolean get() = connection != null

131+

132+ private val _loading = MutableStateFlow(true)

133+ val loading: StateFlow<Boolean> = _loading.asStateFlow()

134+

135+ /** Set when the messages flow failed to load (and the list is empty), so the UI

136+ * can render a distinct error state instead of masquerading as an empty

137+ * conversation. Cleared on a successful non-empty emission. */

138+ private val _loadError = MutableStateFlow(false)

139+ val loadError: StateFlow<Boolean> = _loadError.asStateFlow()

140+

141+ /** Set when a re-fetch fails mid-conversation (messages already visible). Distinct

142+ * from [loadError] (which replaces the whole content with an error screen): this

143+ * surfaces as a persistent inline banner above the message list so a persistent

144+ * outage doesn't go silent after the one-shot snackbar. Cleared on the next

145+ * successful emission. */

146+ private val _loadErrorInline = MutableStateFlow(false)

147+ val loadErrorInline: StateFlow<Boolean> = _loadErrorInline.asStateFlow()

148+

149+ /** Tracks whether the messages flow has ever emitted a non-empty list, so

150+ * [messages]' retryWhen can decide whether a re-fetch failure should set

151+ * [loadError] (nothing shown yet → error screen) or just emit a snackbar

152+ * (already showing messages → don't replace the conversation with an error). */

153+ private var hasShownMessages = false

154+

155+ /** True once we've surfaced a snackbar for the current message-load failure streak.

156+ * Reset on any successful emission so a persistent failure doesn't spam a fresh

157+ * snackbar every retry cycle (every few seconds). */

158+ private var loadErrorSnackbarShown = false

159+

160+ /** Separate from [loading]: tracks the manual reconnect() flow so its spinner

161+ * doesn't conflict with the messages flow's loading state. */

162+ private val _reconnecting = MutableStateFlow(false)

163+ val reconnecting: StateFlow<Boolean> = _reconnecting.asStateFlow()

164+

165+ /** When true, the debounced draft collector skips persisting an empty draft so

166+ * [send]'s deliberate non-persistence of the cleared draft isn't undone by the

167+ * debounce timer firing before the send completes. */

168+ private val suppressDraftPersist = java.util.concurrent.atomic.AtomicBoolean(false)

169+

170+ /** The draft value this VM last persisted, so the drafts observer can tell its own

171+ * (debounced, possibly stale) echo apart from a genuine external write. Without this

172+ * a debounced persist of an older value could echo back and overwrite newer text the

173+ * user has since typed. */

174+ @Volatile private var lastPersistedDraft: String? = null

175+

176+ /** Per-catalog reload triggers: incrementing one causes [observeCatalog]'s

177+ * collectLatest to cancel any in-flight fetch and start a fresh one, so a

178+ * manual reload supersedes a stale observeCatalog fetch. */

179+ private val _modelsReload = MutableStateFlow(0)

180+ private val _agentsReload = MutableStateFlow(0)

181+ private val _commandsReload = MutableStateFlow(0)

182+

183+ /** An optimistically-injected user message shown immediately on send, before the server

184+ * echoes the real message back via SSE. Removed once a matching UserMessage arrives. */

185+ data class OptimisticEntry(val tempId: String, val text: String, val timestamp: Long, val failed: Boolean)

186+

187+ private val _optimisticMessages = MutableStateFlow<List<OptimisticEntry>>(emptyList())

188+

189+ /** SSE-driven message stream with retry/backoff and loading/error side effects. Combined

190+ * with [_optimisticMessages] by [messages] so the user sees their outgoing prompt instantly. */

191+ private val sseMessages: Flow<List<MessageWithParts>> =

192+ container.activeConnection

193+ .flatMapLatest { conn ->

194+ conn?.repository?.observeMessages(sessionId) ?: flowOf(emptyList())

195+ }

196+ .onEach {

197+ _loading.value = false

198+ // A value flowed through: the stream recovered, so allow the next distinct

199+ // failure to surface a fresh snackbar again.

200+ loadErrorSnackbarShown = false

201+ // Clear the error on ANY successful emission, including an empty list. An empty

202+ // session that hit one transient error would otherwise stay latched on the

203+ // "Failed to load / Retry" screen forever, because the later successful EMPTY

204+ // emission couldn't clear the flag. hasShownMessages stays gated on non-empty

205+ // (an empty session has genuinely shown nothing yet).

206+ _loadError.value = false

207+ _loadErrorInline.value = false

208+ if (it.isNotEmpty()) {

209+ hasShownMessages = true

210+ }

211+ // Reconcile optimistic messages: drop any whose text now matches a real SSE

212+ // UserMessage (the server echoed the prompt back). Matching by trimmed text,

213+ // removing the oldest match first so duplicate texts are handled in order.

214+ reconcileOptimistic(it)

215+ }

216+ .retryWhen { cause, attempt ->

217+ _loading.value = false

218+ // Only surface the persistent error state when there's nothing to

219+ // show — if we already have messages, a transient re-fetch failure

220+ // is better surfaced as a snackbar (via errorEvents) than by

221+ // replacing the visible conversation with an error screen.

222+ if (!hasShownMessages) _loadError.value = true

223+ // Mid-conversation failure: surface a persistent inline banner so

224+ // the user knows the stream is broken (the one-shot snackbar alone

225+ // reads as "recovered" once it dismisses). Cleared on recovery.

226+ if (hasShownMessages) _loadErrorInline.value = true

227+ // Surface the snackbar only once per failure streak — retryWhen loops on a

228+ // backoff, so emitting here unconditionally would spam a new snackbar every

229+ // retry on a persistent load failure.

230+ if (!loadErrorSnackbarShown) {

231+ _errorEvents.trySend(ChatError(container.friendlyError(cause)))

232+ loadErrorSnackbarShown = true

233+ }

234+ // Exponential backoff capped at retryMaxDelayMs so a persistently failing

235+ // server is retried with growing delays (retryInitialDelayMs, then doubling)

236+ // instead of hammered at a fixed interval forever. Clamp the shift so a long

237+ // failure streak can't overflow the Long delay. Apply symmetric jitter

238+ // (matching withRetry's jitteredBackoff) so concurrent retrying flows (e.g.

239+ // messages + catalogs after a server blip) don't retry in lockstep and

240+ // thundering-herd the recovering server.

241+ val shift = attempt.coerceAtMost(16L).toInt()

242+ val baseDelay = (NetworkConfig.retryInitialDelayMs shl shift)

243+ .coerceAtMost(NetworkConfig.retryMaxDelayMs)

244+ val jitter = ((baseDelay * NetworkConfig.retryJitterFactor) *

245+ (kotlin.random.Random.nextDouble() * 2 - 1)).toLong()

246+ val backoffMs = (baseDelay + jitter).coerceAtLeast(0)

247+ delay(backoffMs)

248+ true

249+ }

250+

251+ val messages: StateFlow<List<MessageWithParts>> =

252+ combine(sseMessages, _optimisticMessages) { sse, optimistic ->

253+ mergeOptimistic(sse, optimistic)

254+ }.stateIn(

255+ scope = viewModelScope,

256+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

257+ initialValue = emptyList(),

258+ )

259+

260+ /** Whether the conversation has any messages. Derived separately so the top bar

261+ * (share button enabled state) can observe this cheap boolean instead of the

262+ * full messages list, avoiding per-token recomposition of the app bar during

263+ * streaming. */

264+ val hasMessages: StateFlow<Boolean> = messages

265+ .map { it.isNotEmpty() }

266+ .stateIn(

267+ scope = viewModelScope,

268+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

269+ initialValue = false,

270+ )

271+

272+ /** Map of optimistic message tempId → failed flag, so the UI can render a "Sending…"

273+ * or "Failed to send" indicator on the corresponding message bubble. */

274+ val optimisticStatuses: StateFlow<Map<String, Boolean>> = _optimisticMessages

275+ .map { entries -> entries.associate { it.tempId to it.failed } }

276+ .stateIn(

277+ scope = viewModelScope,

278+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

279+ initialValue = emptyMap(),

280+ )

281+

282+ /** Merge SSE-driven messages with optimistic entries. An optimistic entry whose trimmed

283+ * text matches a real [UserMessage] in [sse] is dropped (the server echoed it back).

284+ * Remaining entries are appended as synthetic [UserMessage]s at the end. Failed entries

285+ * are kept so the user sees the failed indicator until they retry or dismiss.

286+ *

287+ * Only the OLDEST matching entry per real text is dropped, so duplicate prompts (the same

288+ * text sent twice) each match their own server-echoed UserMessage instead of both

289+ * vanishing on the first echo. */

290+ private fun mergeOptimistic(

291+ sse: List<MessageWithParts>,

292+ optimistic: List<OptimisticEntry>,

293+ ): List<MessageWithParts> {

294+ if (optimistic.isEmpty()) return sse

295+ // Collect the text of real user messages so optimistic entries can be matched.

296+ val realUserTexts = mutableSetOf<String>()

297+ for (msg in sse) {

298+ if (msg.info !is UserMessage) continue

299+ val text = msg.parts.filterIsInstance<TextPart>()

300+ .joinToString("\n\n") { it.text }

301+ .trim()

302+ if (text.isNotEmpty()) realUserTexts.add(text)

303+ }

304+ val surviving = dropOldestMatches(optimistic, realUserTexts)

305+ if (surviving.isEmpty()) return sse

306+ return sse + surviving.map { it.toMessageWithParts() }

307+ }

308+

309+ /** Remove optimistic entries whose text now matches a real user message delivered by SSE.

310+ * Called from the SSE flow's onEach so stale optimistic entries are cleaned up promptly.

311+ * Only the OLDEST matching entry per real text is removed, so duplicate prompts (the same

312+ * text sent twice) each match their own server-echoed UserMessage instead of both

313+ * vanishing on the first echo. */

314+ private fun reconcileOptimistic(sse: List<MessageWithParts>) {

315+ if (_optimisticMessages.value.isEmpty()) return

316+ val realUserTexts = mutableSetOf<String>()

317+ for (msg in sse) {

318+ if (msg.info !is UserMessage) continue

319+ val text = msg.parts.filterIsInstance<TextPart>()

320+ .joinToString("\n\n") { it.text }

321+ .trim()

322+ if (text.isNotEmpty()) realUserTexts.add(text)

323+ }

324+ if (realUserTexts.isEmpty()) return

325+ _optimisticMessages.update { entries -> dropOldestMatches(entries, realUserTexts) }

326+ }

327+

328+ /** Drop the first (oldest) entry whose trimmed text matches each real user text, once per

329+ * text. A second optimistic entry with the same text survives until a second matching

330+ * UserMessage arrives, so duplicate prompts aren't both cleared by the first echo. */

331+ private fun dropOldestMatches(

332+ entries: List<OptimisticEntry>,

333+ realUserTexts: Set<String>,

334+ ): List<OptimisticEntry> {

335+ if (entries.isEmpty() || realUserTexts.isEmpty()) return entries

336+ val remaining = realUserTexts.toMutableSet()

337+ val result = ArrayList<OptimisticEntry>(entries.size)

338+ for (entry in entries) {

339+ val text = entry.text.trim()

340+ if (text in remaining) {

341+ remaining.remove(text)

342+ } else {

343+ result.add(entry)

344+ }

345+ }

346+ return result

347+ }

348+

349+ /** Convert an optimistic entry to a [MessageWithParts] for display. */

350+ private fun OptimisticEntry.toMessageWithParts(): MessageWithParts = MessageWithParts(

351+ info = UserMessage(

352+ id = tempId,

353+ sessionID = sessionId,

354+ time = soy.iko.opencode.data.model.TimeInfo(created = timestamp),

355+ ),

356+ parts = listOf(TextPart(id = "$tempId-text", text = text)),

357+ )

358+

359+ /** The agent's current task plan (the latest `todowrite`), surfaced so the chat can pin a

360+ * live progress checklist above the composer. distinctUntilChanged so a per-token messages

361+ * emission that doesn't change the plan doesn't recompose the bar.

362+ *

363+ * A [TodoPlanCache] memoizes the scan against the input list's identity, so a `combine`

364+ * re-evaluation that re-emits the same list instance (e.g. when the optimistic-messages

365+ * StateFlow updates without an SSE change) skips the O(messages×parts) re-scan. */

366+ private val todoPlanCache = TodoPlanCache()

367+ val todoPlan: StateFlow<List<TodoItem>> = messages

368+ .map { todoPlanCache.plan(it) }

369+ // Run the scan off the main thread: it's an O(messages×parts) scan (worst case

370+ // when the conversation has no todowrite) and runs on every conflated messages emission.

371+ // distinctUntilChanged is downstream so it dedupes the result but doesn't prevent the

372+ // scan — without flowOn this scans on Main.immediate per streamed token → jank.

373+ .flowOn(Dispatchers.Default)

374+ .distinctUntilChanged()

375+ .stateIn(

376+ scope = viewModelScope,

377+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

378+ initialValue = emptyList(),

379+ )

380+

381+ private val _running = MutableStateFlow(false)

382+ val running: StateFlow<Boolean> = _running.asStateFlow()

383+

384+ /**

385+ * True when the SSE stream dropped mid-run (a transient [Disconnected] while a run is

386+ * active). The UI uses this to switch the working indicator to a "stream interrupted /

387+ * reconnecting" visual instead of clearing [_running] outright — the run is still active

388+ * on the server, so showing it as finished would mislead the user into typing a follow-up

389+ * or navigating away. Cleared when the stream reconnects ([Connected]) or when a hard

390+ * failure ([Failed]/[AuthFailed]) genuinely clears [_running]. See the state watcher in

391+ * [init]. */

392+ private val _streamInterrupted = MutableStateFlow(false)

393+ val streamInterrupted: StateFlow<Boolean> = _streamInterrupted.asStateFlow()

394+

395+ /**

396+ * Wall-clock millis at which the current run started (0L when no run is active). Drives

397+ * the typing row's elapsed timer so it survives LazyColumn recycling — a local `remember`

398+ * in the row resets to 0:00 when the row is disposed and scrolled back into view. Stamped

399+ * only on a real false→[beginRun] transition (send/run/init), not on SSE-reconnect relight

400+ * (which continues an existing run and should keep its original elapsed time).

401+ */

402+ private val _runStartMs = MutableStateFlow(0L)

403+ val runStartMs: StateFlow<Long> = _runStartMs.asStateFlow()

404+

405+ /**

406+ * Atomically transition `_running` false→true and stamp the run-start timestamp. Returns

407+ * false (with no state change) when a run is already in flight, so callers can surface a

408+ * "busy" message instead of silently dropping the action. Centralizes the transition so

409+ * every run-start path captures [runStartMs] consistently.

410+ */

411+ private fun beginRun(): Boolean {

412+ if (!_running.compareAndSet(false, true)) return false

413+ _runStartMs.value = System.currentTimeMillis()

414+ return true

415+ }

416+

417+ /** True once the current run ended via SessionIdle/SessionError, until the next run starts

418+ * (a send) or an SSE reconnect. Gates the run-indicator re-light below: isRunActivity

419+ * returns true for ANY message.part.updated, so without this a trailing/replayed part

420+ * arriving after a legitimate SessionIdle would re-light the "working" indicator with no

421+ * further idle to clear it — a stuck spinner + foreground service. Cleared on reconnect so

422+ * genuine reconnect-recovery re-lighting (its actual purpose) still works. */

423+ @Volatile private var runEndedByIdle = false

424+

425+ /** The in-flight REST title resolution for the current connection. Launched from — and

426+ * cancelled by — the per-connection reset block so it can't observe or restore a previous

427+ * server's stale title. */

428+ private var sessionTitleJob: Job? = null

429+

430+ /** True while an abort REST call is in flight, so the Stop button can show a

431+ * spinner and prevent double-taps from firing a second abort. */

432+ private val _aborting = MutableStateFlow(false)

433+ val aborting: StateFlow<Boolean> = _aborting.asStateFlow()

434+

435+ /** A follow-up the user typed while a run was active. send() queues it here and

436+ * auto-sends once the run completes (SessionIdle), so the user isn't blocked with

437+ * no way to send and no indication why the Send button is gone. */

438+ private val _queuedFollowUp = MutableStateFlow<String?>(null)

439+ val queuedFollowUp: StateFlow<String?> = _queuedFollowUp.asStateFlow()

440+

441+ /** The text of the most recently-sent user prompt (captured in [send]), so an undo-able

442+ * Stop can re-send it. Only text-bearing prompts are tracked — an image-only prompt has

443+ * nothing to re-send text-wise. Cleared when a new run starts with different text. */

444+ private var lastSentPrompt: String? = null

445+

446+ /** One-shot event signals for an undoable Stop. The UI collects this and shows an

447+ * "Stopped — Undo" snackbar; tapping Undo calls [resendLastPrompt]. A Channel so an

448+ * emit before the UI subscribes is still delivered. */

449+ private val _stopUndoEvents = Channel<String?>(Channel.CONFLATED)

450+ val stopUndoEvents: Flow<String?> = _stopUndoEvents.receiveAsFlow()

451+

452+ /** One-shot error events surfaced as snackbars. A Channel (not SharedFlow) so an event

453+ * emitted before the UI subscribes is buffered and still delivered — a SharedFlow with

454+ * replay=0 would drop it (e.g. a VM-init catalog fetch failing before first

455+ * composition). Each event is delivered exactly once and not replayed to a

456+ * re-subscribing collector, so rotation doesn't re-show a stale snackbar. */

457+ private val _errorEvents = Channel<ChatError>(

458+ capacity = NetworkConfig.snackbarEventBufferCapacity,

459+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

460+ )

461+ val errorEvents: Flow<ChatError> = _errorEvents.receiveAsFlow()

462+

463+ /** One-shot events signaling a user-initiated delete was scheduled and is undoable in-place.

464+ * The ChatScreen collects these to show an Undo snackbar over the conversation the user is

465+ * already viewing, instead of navigating away first and surfacing Undo on the session list.

466+ * Carries the session id so a collector using `collectLatest` can withdraw a superseded

467+ * delete (see [cancelSessionDelete]) — a `Unit` event would leave the prior session's

468+ * deferred REST delete firing with no reachable Undo. */

469+ private val _deleteUndoEvents = MutableSharedFlow<String>(

470+ extraBufferCapacity = 1,

471+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

472+ )

473+ val deleteUndoEvents: SharedFlow<String> = _deleteUndoEvents.asSharedFlow()

474+

475+ private val _models = MutableStateFlow<List<ModelOption>>(emptyList())

476+ val models: StateFlow<List<ModelOption>> = _models.asStateFlow()

477+

478+ private val _modelsLoading = MutableStateFlow(true)

479+ val modelsLoading: StateFlow<Boolean> = _modelsLoading.asStateFlow()

480+

481+ private val _modelsError = MutableStateFlow(false)

482+ val modelsError: StateFlow<Boolean> = _modelsError.asStateFlow()

483+

484+ private val _selectedModel = MutableStateFlow<ModelOption?>(null)

485+ val selectedModel: StateFlow<ModelOption?> = _selectedModel.asStateFlow()

486+

487+ val connectionState: StateFlow<EventStreamClient.ConnectionState> =

488+ container.activeConnection

489+ .flatMapLatest { it?.events?.state ?: flowOf(EventStreamClient.ConnectionState.Disconnected) }

490+ .stateIn(

491+ scope = viewModelScope,

492+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

493+ initialValue = EventStreamClient.ConnectionState.Disconnected,

494+ )

495+

496+ /** SSE reconnect-attempt count for the active connection, surfaced so the chat's

497+ * connection banner can show "Reconnecting (attempt N)…" during a sustained outage. */

498+ val reconnectAttempts: StateFlow<Int> =

499+ container.activeConnection

500+ .flatMapLatest { it?.events?.reconnectAttempts ?: flowOf(0) }

501+ .stateIn(

502+ scope = viewModelScope,

503+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

504+ initialValue = 0,

505+ )

506+

507+ private val _pendingPermission = MutableStateFlow<Permission?>(null)

508+ val pendingPermission: StateFlow<Permission?> = _pendingPermission.asStateFlow()

509+

510+ /** Backlog indicator for the permission dialog (see [PermissionProgress]). */

511+ private val _permissionProgress = MutableStateFlow(PermissionProgress(0, 0))

512+ val permissionProgress: StateFlow<PermissionProgress> = _permissionProgress.asStateFlow()

513+

514+ /** Max number of permissions simultaneously pending since the queue was last empty. Reset

515+ * to 0 when the queue drains, so a fresh burst starts its count over. */

516+ private var maxPendingSeen = 0

517+

518+ // Unanswered permission requests keyed by id, insertion-ordered. The dialog shows the most

519+ // recent; when one is answered/replied — or a response fails — we fall back to the next so a

520+ // request that arrived while another was in flight isn't silently dropped (its tool run would

521+ // otherwise stay paused server-side with no UI affordance). Only touched on the VM's main

522+ // dispatcher (event collector + viewModelScope launches), so no extra synchronization is needed.

523+ private val pendingPermissions = LinkedHashMap<String, Permission>()

524+

525+ // Session-scoped permission grants (Allow-for-this-session). Each entry is a (type, patternText)

526+ // pair the user approved with PermissionResponse.SESSION. Subsequent matching requests are

527+ // auto-responded ONCE without showing the dialog, so e.g. a user granting "read" for one path

528+ // isn't re-prompted for every other file read in the same conversation. Cleared on connection

529+ // change (see the activeConnection collector) so it never leaks across servers. The server only

530+ // knows once/always/reject; SESSION is a client-side scope that maps to ONCE on the wire.

531+ private val sessionAllowed = mutableSetOf<Pair<String, String>>()

532+

533+ private fun enqueuePermission(permission: Permission) {

534+ // Auto-respond to a permission whose (type, pattern) the user previously granted for this

535+ // session, instead of showing the dialog again. Resolved immediately (not via the queue) so

536+ // the tool run isn't paused waiting for a dialog the user will never see.

537+ val type = permission.type.orEmpty()

538+ val pattern = permission.patternText.orEmpty()

539+ if (type.isNotEmpty() && sessionAllowed.contains(type to pattern)) {

540+ respondPermission(permission, PermissionResponse.ONCE)

541+ return

542+ }

543+ pendingPermissions[permission.id] = permission

544+ _pendingPermission.value = pendingPermissions.values.lastOrNull()

545+ updatePermissionProgress()

546+ }

547+

548+ private fun resolvePermission(id: String) {

549+ pendingPermissions.remove(id)

550+ _pendingPermission.value = pendingPermissions.values.lastOrNull()

551+ updatePermissionProgress()

552+ }

553+

554+ private fun clearPermissions() {

555+ pendingPermissions.clear()

556+ _pendingPermission.value = null

557+ updatePermissionProgress()

558+ }

559+

560+ /** Recompute the "N of M" backlog indicator. [maxPendingSeen] grows with the queue and

561+ * resets only when it drains, so position = total - remaining + 1 advances as requests are

562+ * answered. */

563+ private fun updatePermissionProgress() {

564+ val remaining = pendingPermissions.size

565+ if (remaining == 0) {

566+ maxPendingSeen = 0

567+ _permissionProgress.value = PermissionProgress(0, 0)

568+ return

569+ }

570+ if (remaining > maxPendingSeen) maxPendingSeen = remaining

571+ _permissionProgress.value = PermissionProgress(

572+ position = maxPendingSeen - remaining + 1,

573+ total = maxPendingSeen,

574+ )

575+ }

576+

577+ private val _agents = MutableStateFlow<List<Agent>>(emptyList())

578+ val agents: StateFlow<List<Agent>> = _agents.asStateFlow()

579+

580+ private val _agentsLoading = MutableStateFlow(true)

581+ val agentsLoading: StateFlow<Boolean> = _agentsLoading.asStateFlow()

582+

583+ private val _agentsError = MutableStateFlow(false)

584+ val agentsError: StateFlow<Boolean> = _agentsError.asStateFlow()

585+

586+ private val _selectedAgent = MutableStateFlow<String?>(null)

587+ val selectedAgent: StateFlow<String?> = _selectedAgent.asStateFlow()

588+

589+ private val _commands = MutableStateFlow<List<Command>>(emptyList())

590+ val commands: StateFlow<List<Command>> = _commands.asStateFlow()

591+

592+ private val _commandsLoading = MutableStateFlow(true)

593+ val commandsLoading: StateFlow<Boolean> = _commandsLoading.asStateFlow()

594+

595+ private val _commandsError = MutableStateFlow(false)

596+ val commandsError: StateFlow<Boolean> = _commandsError.asStateFlow()

597+

598+ private val _sessionTitle = MutableStateFlow<String?>(null)

599+ val sessionTitle: StateFlow<String?> = _sessionTitle.asStateFlow()

600+

601+ /** Set when the current session is deleted via SSE, so the UI can navigate away. */

602+ private val _sessionDeleted = MutableStateFlow(false)

603+ val sessionDeleted: StateFlow<Boolean> = _sessionDeleted.asStateFlow()

604+

605+ /** The text of the last send that failed, surfaced so the UI can offer a retry. */

606+ private val _failedDraft = MutableStateFlow<String?>(null)

607+ val failedDraft: StateFlow<String?> = _failedDraft.asStateFlow()

608+

609+ /** The idempotency key of the last failed online send, stashed alongside [_failedDraft] so

610+ * [retryFailed] re-submits with the SAME key. A retry after a lost response is then

611+ * deduplicated server-side instead of starting a duplicate agent run. */

612+ @Volatile private var failedIdempotencyKey: String? = null

613+

614+ /** Per-session draft, persisted so it survives navigation/process death. */

615+ private val _draft = MutableStateFlow(container.draftStore.get(sessionId))

616+ val draft: StateFlow<String> = _draft.asStateFlow()

617+

618+ /** A pending quote-reply preview (the raw text the user quoted), shown as a dismissible

619+ * card above the composer so the user can see and cancel the quote before sending. Cleared

620+ * on send or via [cancelQuoteReply]. The actual `>` prefixed lines are still folded into

621+ * the draft for the server; this state is purely for the visual preview chip. */

622+ private val _pendingQuote = MutableStateFlow<String?>(null)

623+ val pendingQuote: StateFlow<String?> = _pendingQuote.asStateFlow()

624+

625+ /** Messages composed for this session while offline/disconnected, queued in the outbox and

626+ * awaiting an automatic flush on reconnect. Surfaced so the composer can show a "queued"

627+ * chip with a discard/send-now affordance. */

628+ val outbox: StateFlow<List<OutboxMessage>> =

629+ container.outboxStore.messages

630+ .map { list -> list.filter { it.sessionId == sessionId } }

631+ .stateIn(

632+ scope = viewModelScope,

633+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

634+ initialValue = emptyList(),

635+ )

636+

637+ /** Attachments staged for the next prompt (images/files). Persisted per-session (as their

638+ * self-contained base64 data URLs) via [AttachmentDraftStore] so an interrupted compose

639+ * survives process death — the source content Uris wouldn't survive, but the data URLs

640+ * do. Cleared on a successful send. */

641+ private val _attachments = MutableStateFlow<List<PendingAttachment>>(emptyList())

642+ val attachments: StateFlow<List<PendingAttachment>> = _attachments.asStateFlow()

643+

644+ // Count of picks currently being read + base64-encoded off the main thread, so the

645+ // composer can show a staging placeholder immediately (chips only materialize once done).

646+ // Exposed as StateFlows (not Compose state) so they survive a config change: the staging

647+ // work runs on viewModelScope (which survives rotation), so the counters must live on the

648+ // VM too — remember { mutableStateOf(0) } in the composable would reset to 0 on rotation

649+ // and lose the staging chip mid-encode.

650+ private val _stagingCount = MutableStateFlow(0)

651+ val stagingCount: StateFlow<Int> = _stagingCount.asStateFlow()

652+ // Total number of files still being staged across all in-flight batches, so the

653+ // staging chip can show "Staging N files…" rather than a bare indeterminate spinner.

654+ private val _stagingFileTotal = MutableStateFlow(0)

655+ val stagingFileTotal: StateFlow<Int> = _stagingFileTotal.asStateFlow()

656+

657+ /** True while a revert checkpoint is active for this session (messages after it are hidden

658+ * server-side). Drives the "reverted" banner with its Undo. */

659+ private val _reverted = MutableStateFlow(false)

660+ val reverted: StateFlow<Boolean> = _reverted.asStateFlow()

661+

662+ /** True when the revert was triggered by an Edit action (vs a bare Revert). Drives the

663+ * banner's copy so it reads "Editing message" rather than "Reverted", making the composer's

664+ * prefilled text unambiguous. Cleared on unrevert and on send. */

665+ private val _editing = MutableStateFlow(false)

666+ val editing: StateFlow<Boolean> = _editing.asStateFlow()

667+

668+ /** The diff of the active revert checkpoint, when the server includes one. Shown in the

669+ * revert banner so the user can see what changed before deciding to undo. Null when the

670+ * session isn't reverted or the server didn't send a diff. */

671+ private val _revertDiff = MutableStateFlow<String?>(null)

672+ val revertDiff: StateFlow<String?> = _revertDiff.asStateFlow()

673+

674+ /** The active public share URL for this session, or null when not shared. */

675+ private val _shareUrl = MutableStateFlow<String?>(null)

676+ val shareUrl: StateFlow<String?> = _shareUrl.asStateFlow()

677+

678+ /** One-shot events carrying a freshly-created share URL so the UI can copy/share it. */

679+ private val _shareLinkEvents = Channel<String>(

680+ capacity = NetworkConfig.snackbarEventBufferCapacity,

681+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

682+ )

683+ val shareLinkEvents: Flow<String> = _shareLinkEvents.receiveAsFlow()

684+

685+ /** One-shot events carrying the id of a session freshly branched from a message, so the

686+ * UI can navigate to it. */

687+ private val _branchEvents = Channel<String>(

688+ capacity = NetworkConfig.snackbarEventBufferCapacity,

689+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

690+ )

691+ val branchEvents: Flow<String> = _branchEvents.receiveAsFlow()

692+

693+ init {

694+ // DraftStore loads SharedPreferences asynchronously; on a cold start the

695+ // synchronous get() above returns "" until the background load completes.

696+ // Observe the ready signal and re-seed the draft so it appears in the UI.

697+ viewModelScope.launch {

698+ container.draftStore.ready.collect { ready ->

699+ if (!ready) return@collect

700+ if (_draft.value.isEmpty()) {

701+ _draft.value = container.draftStore.get(sessionId)

702+ }

703+ // Recover a follow-up queued before process death (its in-memory StateFlow

704+ // is gone). If the input is now free, drop it back there for review/send and

705+ // consume the stored copy; otherwise re-queue it so it auto-sends when the

706+ // current run next idles. Guarded on == null so it never clobbers a

707+ // follow-up the user queued after opening this session.

708+ val savedFollowUp = container.draftStore.getFollowUp(sessionId)

709+ if (savedFollowUp.isNotEmpty() && _queuedFollowUp.value == null) {

710+ if (_draft.value.isEmpty()) {

711+ _draft.value = savedFollowUp

712+ container.draftStore.flushFollowUp(sessionId, "")

713+ } else {

714+ _queuedFollowUp.value = savedFollowUp

715+ }

716+ }

717+ }

718+ }

719+ // Observe the drafts store for external mutations to this session's draft

720+ // (e.g. a share injected via draftStore.set in two-pane mode, or setImmediate

721+ // before navigation in single-pane mode). Without this, a share injected into

722+ // an already-open session never appears in the input field — the init-time

723+ // read and the ready-only re-seed miss it when the draft is non-empty.

724+ // The VM's own debounced persist writes the same value _draft already holds,

725+ // so those updates are no-ops here (storeValue == _draft.value). The

726+ // suppressDraftPersist guard prevents a stale store value from clobbering

727+ // the deliberate draft clear during a send (the store still holds the

728+ // pre-send draft until the send resolves).

729+ viewModelScope.launch {

730+ container.draftStore.drafts.collect { drafts ->

731+ // Ignore emissions until the initial disk load completes: the load itself

732+ // emits the persisted snapshot, and applying it here would clobber text the

733+ // user typed during the async load (the `ready` observer above seeds an

734+ // empty draft). After ready, emissions are external writes.

735+ if (!container.draftStore.ready.value) return@collect

736+ val storeValue = drafts[sessionId].orEmpty()

737+ // Ignore this VM's own (debounced, possibly stale) persistence echo — only a

738+ // genuine external write (e.g. a two-pane share injection) should overwrite

739+ // the live draft.

740+ if (storeValue == lastPersistedDraft) return@collect

741+ if (storeValue != _draft.value && !suppressDraftPersist.get()) {

742+ _draft.value = storeValue

743+ }

744+ }

745+ }

746+ }

747+

748+ init {

749+ // Restore attachments staged before process death. They were persisted as

750+ // self-contained data URLs, so they re-send and (for images) re-preview intact.

751+ // Guarded on empty so it never clobbers attachments the user staged after opening.

752+ viewModelScope.launch {

753+ val restored = runCatchingCancellable { container.attachmentDraftStore.load(sessionId) }

754+ .getOrDefault(emptyList())

755+ if (restored.isNotEmpty() && _attachments.value.isEmpty()) {

756+ _attachments.value = restored.map { it.toPending() }

757+ }

758+ }

759+ }

760+

761+ fun selectModel(option: ModelOption) { _selectedModel.value = option }

762+

763+ fun selectAgent(name: String?) { _selectedAgent.value = name }

764+

765+ fun reloadModels() {

766+ val conn = connection ?: return

767+ viewModelScope.launch {

768+ conn.api.invalidateProvidersCache()

769+ _modelsReload.value++

770+ }

771+ }

772+

773+ fun reloadAgents() {

774+ val conn = connection ?: return

775+ viewModelScope.launch {

776+ conn.api.invalidateAgentsCache()

777+ _agentsReload.value++

778+ }

779+ }

780+

781+ fun reloadCommands() {

782+ val conn = connection ?: return

783+ viewModelScope.launch {

784+ conn.api.invalidateCommandsCache()

785+ _commandsReload.value++

786+ }

787+ }

788+

789+ /**

790+ * Shared helper for init-block catalog observers: re-fetches whenever the active

791+ * connection or the catalog's reload trigger changes, invoking [onNull] to clear

792+ * state on null so stale data from the old server doesn't persist. The

793+ * [reloadTrigger] is merged with [activeConnection] so a manual reload (via

794+ * reloadModels/reloadAgents/reloadCommands) cancels any in-flight observe fetch

795+ * via collectLatest, preventing a stale observe result from overwriting a fresh

796+ * reload result. Failure is non-fatal — the error flag is surfaced to the UI.

797+ */

798+ private fun <T> observeCatalog(

799+ tag: String,

800+ loading: MutableStateFlow<Boolean>,

801+ error: MutableStateFlow<Boolean>,

802+ fetch: suspend (soy.iko.opencode.data.network.OpencodeApiClient) -> T,

803+ onSuccess: suspend (T) -> Unit,

804+ onNull: () -> Unit,

805+ reloadTrigger: StateFlow<Int>,

806+ ) {

807+ viewModelScope.launch {

808+ merge(container.activeConnection, reloadTrigger).collectLatest { _ ->

809+ val conn = container.activeConnection.value

810+ if (conn == null) { onNull(); loading.value = false; error.value = false; return@collectLatest }

811+ loading.value = true

812+ error.value = false

813+ runCatchingCancellable { fetch(conn.api) }

814+ // fetch() does HTTP via withRetry, so the failure can be a

815+ // ClientRequestException whose message embeds the full request URL

816+ // (may contain auth/paths). Log only a scrubbed summary.

817+ .onFailure { Log.w("ChatViewModel", "Failed to load $tag: ${safeExceptionSummary(it)}"); error.value = true }

818+ .getOrNull()?.let { onSuccess(it) }

819+ loading.value = false

820+ }

821+ }

822+ }

823+

824+ fun updateDraft(text: String) {

825+ _draft.value = text

826+ }

827+

828+ init {

829+ // Debounce draft persistence so we don't write to disk on every keystroke.

830+ // Skip persisting empty drafts that were set by send() (suppressed via

831+ // suppressDraftPersist) — send() clears the in-memory draft immediately for

832+ // UI feedback but deliberately doesn't persist the clear until the send

833+ // succeeds, so a failed send can restore the draft.

834+ viewModelScope.launch {

835+ _draft.drop(1).debounce(NetworkConfig.draftDebounceMs).collect { text ->

836+ if (text.isBlank() && suppressDraftPersist.get()) return@collect

837+ lastPersistedDraft = text

838+ runCatchingCancellable { container.draftStore.set(sessionId, text) }

839+ .onFailure { Log.w("ChatViewModel", "Failed to persist draft", it) }

840+ }

841+ }

842+ // Reset per-connection state when the active server changes so stale spinners,

843+ // permission dialogs, errors, and agent selections from the old server don't

844+ // persist into the new one.

845+ viewModelScope.launch {

846+ container.activeConnection.collectLatest { conn ->

847+ if (conn == null) {

848+ // The connection dropped (e.g. disconnect() mid-run). No SSE stream will

849+ // arrive to deliver SessionIdle/SessionError, so reset the run state here —

850+ // otherwise the working spinner sticks on, ChatScreen keeps keepScreenOn +

851+ // the RunForegroundService alive, and the Stop button no-ops (abort() early-

852+ // returns with no connection) until a later reconnect happens to clear it.

853+ _running.value = false

854+ _streamInterrupted.value = false

855+ _aborting.value = false

856+ clearPermissions()

857+ sessionAllowed.clear()

858+ sessionTitleJob?.cancel()

859+ _revertDiff.value = null

860+ return@collectLatest

861+ }

862+ _running.value = false

863+ _streamInterrupted.value = false

864+ // Allow the re-light below to recover a still-running run after this (re)connect;

865+ // a run that actually finished during the outage emits no live parts, so this

866+ // won't spuriously re-light.

867+ runEndedByIdle = false

868+ clearPermissions()

869+ sessionAllowed.clear()

870+ _failedDraft.value = null

871+ _revertDiff.value = null

872+ // NOTE: deliberately not clearing _queuedFollowUp here. It's session-scoped

873+ // user intent that is now persisted; wiping it on every (re)connect — which

874+ // this collector does, including transient SSE drops and the cold-start

875+ // restore path — would drop a legitimately queued/recovered follow-up.

876+ _selectedAgent.value = null

877+ // Apply the user's persisted preferred-agent for this new session/load, so a

878+ // user who always runs a specific agent doesn't have to pick it every session.

879+ // No-op when the preference is empty (the server default applies). Read here

880+ // (not in the agent-catalog onSuccess) because the catalog loads once per

881+ // connection while this reset fires per-session-open; setting it once on

882+ // connect is enough and avoids re-applying it on every catalog refresh.

883+ runCatchingCancellable {

884+ val pref = container.settingsStore.preferredAgentName.first()

885+ if (pref.isNotEmpty()) _selectedAgent.value = pref

886+ }

887+ _sessionTitle.value = null

888+ // Resolve the app-bar title via REST for THIS connection. Launched from the same

889+ // block that just nulled _sessionTitle (and cancelled the previous fetch) so it can

890+ // never observe or restore the previous server's stale title — the old separate

891+ // collector could, racing that reset. The assignment is guarded on a still-null

892+ // title so a fresher SSE SessionUpdated (from the event collector below) wins.

893+ sessionTitleJob?.cancel()

894+ sessionTitleJob = viewModelScope.launch {

895+ runCatchingCancellable { conn.repository.listSessions() }

896+ .getOrNull()

897+ ?.firstOrNull { it.id == sessionId }

898+ ?.let { session ->

899+ if (_sessionTitle.value == null) {

900+ _sessionTitle.value = session.displayTitle

901+ _reverted.value = session.isReverted

902+ _revertDiff.value = session.revert?.diff?.takeIf { it.isNotBlank() }

903+ _shareUrl.value = session.share?.url?.takeIf { it.isNotBlank() }

904+ }

905+ }

906+ }

907+ try {

908+ // Loop the inner collect so a transient non-cancellation exception (a

909+ // malformed SSE event decoding error, an unexpected channel close)

910+ // doesn't terminate the event collector for this connection. Without

911+ // the loop, the catch returns the collectLatest lambda normally, so

912+ // collectLatest considers this connection's block complete and never

913+ // re-runs it — the chat would go permanently silent (no streaming,

914+ // no permission prompts, no title updates) until a server switch.

915+ while (currentCoroutineContext().isActive) {

916+ try {

917+ conn.events.events.collect { event ->

918+ if (SessionRepository.isIdle(event, sessionId)) {

919+ _running.value = false

920+ runEndedByIdle = true

921+ // Auto-send a queued follow-up once the previous run finishes,

922+ // so the user's drafted-while-running message isn't lost.

923+ // The follow-up is cleared *inside* send()'s launched

924+ // coroutine (via queuedFollowUpToClear), so a scope

925+ // cancellation between this point and the coroutine

926+ // starting drops the launch without wiping the persisted

927+ // follow-up — recovery on next session open instead of

928+ // silent data loss.

929+ val queued = _queuedFollowUp.value

930+ if (queued != null) {

931+ send(queued, includeAttachments = false, queuedFollowUpToClear = queued)

932+ }

933+ }

934+ if (SessionRepository.isError(event, sessionId)) {

935+ _running.value = false

936+ runEndedByIdle = true

937+ // The run errored, so the queued follow-up won't auto-send.

938+ // Restore it to the input (if free) so the user's typed text

939+ // isn't silently lost; otherwise just clear the queue.

940+ val queued = _queuedFollowUp.value

941+ if (!queued.isNullOrEmpty() && _draft.value.isEmpty()) {

942+ _draft.value = queued

943+ }

944+ setQueuedFollowUp(null)

945+ _errorEvents.trySend(ChatError(container.string(R.string.error_agent_reported)))

946+ }

947+ // Restore the run indicator if a live streaming event arrives while it's

948+ // cleared — e.g. an SSE reconnect mid-run reset _running to false, but the

949+ // agent is still working. Don't revive it once the user has hit Stop.

950+ val relightRunIndicator = SessionRepository.isRunActivity(event, sessionId) &&

951+ !_aborting.value && !_running.value && !runEndedByIdle

952+ if (relightRunIndicator) {

953+ _running.value = true

954+ }

955+ when (event) {

956+ is PermissionUpdated ->

957+ if (event.properties.sessionID == sessionId) enqueuePermission(event.properties)

958+ is PermissionReplied ->

959+ if (event.properties.sessionID == sessionId) event.properties.permissionID?.let { resolvePermission(it) }

960+ is SessionUpdated -> {

961+ val info = event.properties.info

962+ if (info != null && info.id == sessionId) {

963+ _sessionTitle.value = info.displayTitle

964+ _reverted.value = info.isReverted

965+ _revertDiff.value = info.revert?.diff?.takeIf { it.isNotBlank() }

966+ _shareUrl.value = info.share?.url?.takeIf { it.isNotBlank() }

967+ }

968+ }

969+ is SessionDeleted ->

970+ if (event.properties.info?.id == sessionId || event.properties.sessionID == sessionId) {

971+ _sessionDeleted.value = true

972+ }

973+ else -> {}

974+ }

975+ }

976+ } catch (e: CancellationException) {

977+ throw e

978+ } catch (e: Exception) {

979+ Log.w("ChatViewModel", "SSE event collector error, restarting", e)

980+ }

981+ }

982+ } catch (e: CancellationException) {

983+ throw e

984+ } catch (e: Exception) {

985+ Log.w("ChatViewModel", "SSE event collector loop error", e)

986+ }

987+ }

988+ }

989+ // Load the model catalog; preselect the server default. Failure is non-fatal —

990+ // sending with no model just uses the server's default agent/model.

991+ observeCatalog(

992+ tag = "model catalog",

993+ loading = _modelsLoading,

994+ error = _modelsError,

995+ fetch = { it.providers() },

996+ onSuccess = { resp ->

997+ val options = resp.toOptions()

998+ _models.value = options

999+ // Only (re)apply the default when there's no valid current selection. On

1000+ // re-fetch/reconnect/Retry the user's chosen model must survive — keep it as

1001+ // long as it's still present in the refreshed list. When there's no current

1002+ // selection, prefer the user's persisted default-model preference (if it's in

1003+ // the list) over the server default, so a user who always picks a specific

1004+ // model doesn't have to pick it every new session.

1005+ val current = _selectedModel.value

1006+ if (current == null || options.none { it.ref == current.ref }) {

1007+ val prefId = runCatchingCancellable {

1008+ container.settingsStore.preferredModelId.first()

1009+ }.getOrDefault("")

1010+ val preferredOption = if (prefId.isNotEmpty()) {

1011+ options.firstOrNull { it.modelID == prefId }

1012+ } else null

1013+ _selectedModel.value = preferredOption ?: resp.defaultOption(options)

1014+ }

1015+ },

1016+ onNull = { _models.value = emptyList(); _selectedModel.value = null },

1017+ reloadTrigger = _modelsReload,

1018+ )

1019+ // Load the agent catalog (non-fatal).

1020+ observeCatalog(

1021+ tag = "agent catalog",

1022+ loading = _agentsLoading,

1023+ error = _agentsError,

1024+ fetch = { it.agents() },

1025+ onSuccess = { _agents.value = it },

1026+ onNull = { _agents.value = emptyList() },

1027+ reloadTrigger = _agentsReload,

1028+ )

1029+ // Load the command catalog (non-fatal).

1030+ observeCatalog(

1031+ tag = "command catalog",

1032+ loading = _commandsLoading,

1033+ error = _commandsError,

1034+ fetch = { it.commands() },

1035+ onSuccess = { _commands.value = it },

1036+ onNull = { _commands.value = emptyList() },

1037+ reloadTrigger = _commandsReload,

1038+ )

1039+ // If the SSE stream drops mid-run, the run indicator would spin forever;

1040+ // reset it so the UI doesn't look stuck while the banner shows "Reconnecting…".

1041+ // On a *transient* drop (Disconnected) we don't clear _running — the run is still

1042+ // active on the server, and showing it as finished would mislead the user. Instead

1043+ // we set _streamInterrupted so the working row switches to a "reconnecting" visual.

1044+ // On a *hard* failure (Failed/AuthFailed) the run genuinely can't continue without

1045+ // user action, so _running is cleared. _streamInterrupted is cleared on Connected.

1046+ viewModelScope.launch {

1047+ container.activeConnection.collectLatest { conn ->

1048+ if (conn == null) return@collectLatest

1049+ try {

1050+ // Loop so a transient non-cancellation exception doesn't terminate the

1051+ // state watcher for this connection. Without the loop, a single thrown

1052+ // error returns the collectLatest lambda and the _running reset on

1053+ // Disconnected/Failed never fires again for this connection — a dropped

1054+ // stream leaves the working spinner (and the RunForegroundService) stuck.

1055+ while (currentCoroutineContext().isActive) {

1056+ try {

1057+ conn.events.state.collect { state ->

1058+ when (state) {

1059+ EventStreamClient.ConnectionState.Connected -> {

1060+ _streamInterrupted.value = false

1061+ }

1062+ EventStreamClient.ConnectionState.Disconnected -> {

1063+ // Transient: the stream dropped but the system is

1064+ // reconnecting. Flag interrupted so the working row

1065+ // shows a "reconnecting" state instead of vanishing.

1066+ if (_running.value) _streamInterrupted.value = true

1067+ }

1068+ EventStreamClient.ConnectionState.Failed,

1069+ EventStreamClient.ConnectionState.AuthFailed -> {

1070+ // Hard failure: the run can't continue without user

1071+ // action (fix credentials / server). Clear running and

1072+ // the interrupted flag so the UI doesn't look stuck.

1073+ _streamInterrupted.value = false

1074+ if (_running.value) _running.value = false

1075+ }

1076+ EventStreamClient.ConnectionState.Connecting -> {

1077+ // Initial connect or reconnect attempt; leave running

1078+ // as-is — interrupted (if set) stays until Connected.

1079+ }

1080+ }

1081+ }

1082+ } catch (e: CancellationException) {

1083+ throw e

1084+ } catch (e: Exception) {

1085+ Log.w("ChatViewModel", "SSE state collector error, restarting", e)

1086+ }

1087+ }

1088+ } catch (e: CancellationException) {

1089+ throw e

1090+ } catch (e: Exception) {

1091+ Log.w("ChatViewModel", "SSE state collector loop error", e)

1092+ }

1093+ }

1094+ }

1095+ }

1096+

1097+ /** Sends [text] together with any staged attachments; returns true on success so the

1098+ * caller can clear the draft only then. */

1099+ fun send(text: String): Boolean = send(text, includeAttachments = true)

1100+

1101+ /**

1102+ * Core send. [includeAttachments] is false for the internal auto-send paths (a queued

1103+ * follow-up, a retry) so staged attachments aren't silently re-sent with unrelated text.

1104+ *

1105+ * [queuedFollowUpToClear] is the text of a queued follow-up being auto-sent (from

1106+ * SessionIdle). When non-null, the follow-up is cleared from persistence *inside* the

1107+ * launched coroutine — so if [viewModelScope] is cancelled before the coroutine runs

1108+ * (e.g. the user navigates away at the exact moment SessionIdle arrives), the clear

1109+ * never executes and the follow-up remains persisted, recovered on the next open of

1110+ * this session. Clearing it before the launch (the prior approach) could lose the

1111+ * follow-up entirely: the launch would be dropped by cancellation but the persisted

1112+ * copy was already wiped.

1113+ */

1114+ @Suppress("CyclomaticComplexMethod")

1115+ private fun send(

1116+ text: String,

1117+ includeAttachments: Boolean,

1118+ idempotencyKey: String? = null,

1119+ queuedFollowUpToClear: String? = null,

1120+ ): Boolean {

1121+ val trimmed = text.trim()

1122+ val attachments = if (includeAttachments) _attachments.value else emptyList()

1123+ // An image-only prompt (attachments, no text) is valid; a blank prompt with nothing

1124+ // attached is not.

1125+ if (trimmed.isEmpty() && attachments.isEmpty()) return false

1126+ // Offline, or no active connection: queue the prompt to the outbox (flushed on

1127+ // reconnect) instead of failing the send. Device-offline is caught even when a stale

1128+ // connection object lingers, so a phone that lost signal mid-conversation still

1129+ // captures the message rather than bouncing it off a dead socket.

1130+ val conn = connection

1131+ if (conn == null || !container.isOnline.value) {

1132+ return enqueueOffline(trimmed, attachments)

1133+ }

1134+ if (!beginRun()) return false

1135+ // A new run is starting: reopen the re-light gate so this run's streamed parts keep the

1136+ // indicator lit (and a later SessionIdle re-closes it).

1137+ runEndedByIdle = false

1138+ // A plain manual Send of the auto-restored failed draft must reuse the stashed key too

1139+ // (retryFailed passes it explicitly; the composer's Send does not), so a lost-response

1140+ // re-send stays deduplicated server-side instead of starting a duplicate agent run.

1141+ // Capture the match BEFORE clearing _failedDraft just below.

1142+ val reuseKey = if (idempotencyKey == null && trimmed == _failedDraft.value?.trim()) {

1143+ failedIdempotencyKey

1144+ } else {

1145+ null

1146+ }

1147+ _failedDraft.value = null

1148+ // Stable idempotency key for THIS online attempt: a brand-new message gets a fresh key,

1149+ // while retryFailed() (or a manual re-send of the restored failed draft) re-submits with the

1150+ // key it stashed on the original failure — so a retry after a lost response is deduplicated

1151+ // server-side (no duplicate agent run).

1152+ val key = idempotencyKey ?: reuseKey ?: java.util.UUID.randomUUID().toString()

1153+ // Clear the staged attachments optimistically so the composer empties immediately;

1154+ // restore them if the send fails (mirrors the draft handling below).

1155+ if (attachments.isNotEmpty()) _attachments.value = emptyList()

1156+ // Clear the in-memory draft for the UI immediately, but don't persist the clear

1157+ // yet — if the send fails and the process dies before we restore, the draft

1158+ // would be lost forever. The persisted draft is cleared only on success.

1159+ // suppressDraftPersist prevents the debounced collector from persisting the

1160+ // empty draft before the send resolves.

1161+ //

1162+ // Only clear when the text being sent IS the current draft. send() is also

1163+ // invoked for auto-sent queued follow-ups (SessionIdle) and retryFailed(), where

1164+ // the user may have typed a NEW draft since — wiping it would lose that text.

1165+ if (_draft.value.trim() == trimmed) {

1166+ suppressDraftPersist.set(true)

1167+ _draft.value = ""

1168+ _pendingQuote.value = null

1169+ _editing.value = false

1170+ }

1171+ // Inject an optimistic user message so the outgoing prompt is visible immediately,

1172+ // before the server echoes it back via SSE. Removed by reconcileOptimistic once the

1173+ // real UserMessage arrives. Only for text-bearing prompts (an image-only prompt has

1174+ // no text to show).

1175+ val optimisticId = if (trimmed.isNotEmpty()) "__optimistic_${System.nanoTime()}" else null

1176+ if (optimisticId != null) {

1177+ // Clear any prior failed optimistic entry with the same text (a retry re-sends).

1178+ _optimisticMessages.update { entries -> entries.filterNot { it.failed && it.text.trim() == trimmed } }

1179+ _optimisticMessages.update { it + OptimisticEntry(optimisticId, trimmed, System.currentTimeMillis(), failed = false) }

1180+ }

1181+ // Remember the sent text so an undoable Stop can re-send it. Overwrite unconditionally:

1182+ // an image-only prompt has nothing to re-send, and leaving a prior text prompt tracked

1183+ // would make Stop-Undo silently re-send that unrelated earlier message.

1184+ lastSentPrompt = trimmed.takeIf { it.isNotEmpty() }

1185+ viewModelScope.launch {

1186+ // Clear a queued follow-up being auto-sent *inside* the launched coroutine, so a

1187+ // scope cancellation between send() being called and the coroutine starting drops

1188+ // the launch without wiping the persisted follow-up — the follow-up is then

1189+ // recovered on the next session open instead of being silently lost.

1190+ if (queuedFollowUpToClear != null) setQueuedFollowUp(null)

1191+ // Re-check the active connection: send() captured `conn` synchronously above, but a

1192+ // server switch between send() returning and this coroutine starting would send the

1193+ // prompt to the OLD (closed) server. Route to the outbox instead so the message is

1194+ // delivered to the correct server on reconnect, rather than failing against a stale

1195+ // connection. Reset _running (set by beginRun above) since no SSE streaming will

1196+ // follow an outbox enqueue — without this the run indicator would be stuck on.

1197+ if (container.activeConnection.value !== conn) {

1198+ enqueueOffline(trimmed, attachments)

1199+ _running.value = false

1200+ return@launch

1201+ }

1202+ runCatchingCancellable {

1203+ conn.repository.sendPrompt(

1204+ sessionId,

1205+ trimmed,

1206+ attachments = attachments.map { it.part },

1207+ model = _selectedModel.value?.ref,

1208+ agent = _selectedAgent.value,

1209+ idempotencyKey = key,

1210+ )

1211+ }.onFailure {

1212+ // Mark the optimistic message as failed so the user sees a failure indicator

1213+ // instead of a perpetual "sending" state.

1214+ if (optimisticId != null) {

1215+ _optimisticMessages.update { entries ->

1216+ entries.map { if (it.tempId == optimisticId) it.copy(failed = true) else it }

1217+ }

1218+ }

1219+ suppressDraftPersist.set(false)

1220+ _failedDraft.value = trimmed

1221+ failedIdempotencyKey = key

1222+ // Only restore the draft if the user hasn't typed anything new since.

1223+ if (_draft.value.isBlank()) updateDraft(trimmed)

1224+ // Restore the staged attachments too, so a failed send doesn't lose them —

1225+ // but only if the user hasn't staged new ones in the meantime.

1226+ if (attachments.isNotEmpty() && _attachments.value.isEmpty()) _attachments.value = attachments

1227+ // Re-persist so the restored attachments survive process death after a failure.

1228+ persistAttachments()

1229+ // Retryable: this is the failed send whose prompt Retry re-submits.

1230+ _errorEvents.trySend(ChatError(container.friendlyError(it), retryable = true))

1231+ _running.value = false

1232+ }.onSuccess {

1233+ suppressDraftPersist.set(false)

1234+ // This attempt reached the server, so the stashed retry key is spent — drop it so a

1235+ // later unrelated send can't reuse it (retryFailed clears it on success too).

1236+ failedIdempotencyKey = null

1237+ // Send succeeded — the attachments rode along, so clear their persisted copy

1238+ // (or keep any the user staged after the optimistic clear).

1239+ persistAttachments()

1240+ // Send succeeded — persist the cleared draft, but only if the user hasn't

1241+ // typed a new one while the send was in flight. Otherwise clearing the

1242+ // store echoes back through the draft observer and wipes the in-progress

1243+ // text (data loss). Mirrors the guard on the failure path above.

1244+ if (_draft.value.isBlank()) {

1245+ lastPersistedDraft = ""

1246+ container.draftStore.set(sessionId, "")

1247+ }

1248+ // Don't reset _running here: the agent continues streaming via SSE.

1249+ // _running is cleared on SessionIdle/SessionError (see event collector)

1250+ // or when the SSE stream drops (see connection state watcher below).

1251+ }

1252+ }

1253+ return true

1254+ }

1255+

1256+ /**

1257+ * Queue [trimmed] (+ [attachments]) to the offline outbox, clearing the composer

1258+ * optimistically like a real send. AppContainer flushes the outbox automatically on

1259+ * reconnect. The prompt is attributed to the active (or most-recent) server profile so a

1260+ * reconnect to a different server doesn't misfire it. On any failure the draft/attachments

1261+ * are restored so nothing is lost.

1262+ */

1263+ private fun enqueueOffline(trimmed: String, attachments: List<PendingAttachment>): Boolean {

1264+ _failedDraft.value = null

1265+ if (attachments.isNotEmpty()) _attachments.value = emptyList()

1266+ val clearDraft = _draft.value.trim() == trimmed

1267+ if (clearDraft) {

1268+ suppressDraftPersist.set(true)

1269+ _draft.value = ""

1270+ }

1271+ viewModelScope.launch {

1272+ val profileId = connection?.profile?.id

1273+ ?: runCatchingCancellable { container.profileStore.profiles.first().firstOrNull()?.id }.getOrNull()

1274+ if (profileId == null) {

1275+ // No server to attribute the message to — restore the composer and report it

1276+ // rather than silently dropping the prompt.

1277+ suppressDraftPersist.set(false)

1278+ if (_draft.value.isBlank()) updateDraft(trimmed)

1279+ if (attachments.isNotEmpty() && _attachments.value.isEmpty()) _attachments.value = attachments

1280+ persistAttachments()

1281+ _errorEvents.trySend(ChatError(container.string(R.string.no_servers_to_reconnect)))

1282+ return@launch

1283+ }

1284+ runCatchingCancellable {

1285+ container.outboxStore.enqueue(

1286+ OutboxMessage(

1287+ id = java.util.UUID.randomUUID().toString(),

1288+ profileId = profileId,

1289+ sessionId = sessionId,

1290+ text = trimmed,

1291+ attachments = attachments.map { it.toPersisted() },

1292+ model = _selectedModel.value?.ref,

1293+ agent = _selectedAgent.value,

1294+ createdAt = System.currentTimeMillis(),

1295+ ),

1296+ )

1297+ }.onSuccess {

1298+ suppressDraftPersist.set(false)

1299+ // The staged attachments now live in the outbox item; clear their draft copy.

1300+ persistAttachments()

1301+ if (_draft.value.isBlank()) {

1302+ lastPersistedDraft = ""

1303+ container.draftStore.set(sessionId, "")

1304+ }

1305+ // Nudge a flush in case we're actually online with a live connection.

1306+ container.flushOutbox()

1307+ _errorEvents.trySend(ChatError(container.string(R.string.outbox_queued)))

1308+ }.onFailure {

1309+ suppressDraftPersist.set(false)

1310+ if (_draft.value.isBlank()) updateDraft(trimmed)

1311+ if (attachments.isNotEmpty() && _attachments.value.isEmpty()) _attachments.value = attachments

1312+ persistAttachments()

1313+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1314+ }

1315+ }

1316+ return true

1317+ }

1318+

1319+ /** Discard a single queued (offline) message. */

1320+ fun discardQueued(id: String) {

1321+ viewModelScope.launch { runCatchingCancellable { container.outboxStore.remove(id) } }

1322+ }

1323+

1324+ /** Discard every queued (offline) message for this session. */

1325+ fun discardAllQueued() {

1326+ viewModelScope.launch { runCatchingCancellable { container.outboxStore.removeForSession(sessionId) } }

1327+ }

1328+

1329+ /** Attempt to flush the outbox now (e.g. the user tapped "Send now"). */

1330+ fun flushQueued() { container.flushOutbox() }

1331+

1332+ /** Re-send the last draft whose send failed, if any. */

1333+ fun retryFailed() {

1334+ val draft = _failedDraft.value ?: return

1335+ // Reuse the failed send's idempotency key so a retry after a lost response is

1336+ // deduplicated server-side rather than starting a duplicate run.

1337+ val key = failedIdempotencyKey

1338+ // Don't clear _failedDraft until send() accepts the text — if _running is

1339+ // already true, send() returns false and the draft would be lost forever.

1340+ // Attachments aren't re-sent on retry (they were optimistically restored to the

1341+ // composer on the original failure, so they'll ride the next manual send).

1342+ // send() accepts the text synchronously, but its onSuccess/onFailure callbacks run

1343+ // asynchronously. Clearing failedIdempotencyKey here would open a window between this

1344+ // synchronous clear and the async onFailure (which re-stashes the key) during which a

1345+ // manual re-send of the same text gets a fresh UUID — defeating server-side deduplication.

1346+ // Let send()'s own callbacks own the key's lifecycle, as they do for non-retry paths.

1347+ if (send(draft, includeAttachments = false, idempotencyKey = key)) {

1348+ _failedDraft.value = null

1349+ }

1350+ }

1351+

1352+ /** Dismiss a single failed optimistic message by its tempId so it no longer lingers in the

1353+ * list. Without this there's no recovery path for a failed message the user chose to abandon

1354+ * (its text won't ever match a real server message, so reconcileOptimistic never clears it). */

1355+ fun dismissOptimistic(tempId: String) {

1356+ _optimisticMessages.update { entries -> entries.filterNot { it.tempId == tempId } }

1357+ }

1358+

1359+ /** Re-send a specific failed optimistic message by its tempId. Loads its text into the

1360+ * composer and fires a send, mirroring the snackbar's Retry path. Returns false (and is a

1361+ * no-op) if the entry can't be found or a run is already active. */

1362+ fun retryOptimisticMessage(tempId: String): Boolean {

1363+ val entry = _optimisticMessages.value.firstOrNull { it.tempId == tempId && it.failed } ?: return false

1364+ return send(entry.text, includeAttachments = false)

1365+ }

1366+

1367+ /**

1368+ * Queue [text] to be sent automatically when the current run finishes, or clear any

1369+ * queued follow-up when [text] is blank. Used when the user taps Send while a run

1370+ * is already active — the Send button is replaced by Stop during a run, but the

1371+ * input field stays enabled, so a follow-up typed mid-run would otherwise have

1372+ * nowhere to go.

1373+ */

1374+ fun queueFollowUp(text: String) {

1375+ val trimmed = text.trim()

1376+ setQueuedFollowUp(trimmed.takeIf { it.isNotEmpty() })

1377+ // The text now lives in the queued chip, so clear the input field just as a

1378+ // normal send would. No-op for the cancel case (blank text), which must leave

1379+ // whatever the user has since typed untouched.

1380+ if (trimmed.isNotEmpty()) {

1381+ _draft.value = ""

1382+ // Persist the cleared draft IMMEDIATELY, not just in memory: the follow-up was already

1383+ // persisted synchronously above, so if the process is killed before the debounced

1384+ // draft-persist fires, the same text would remain under BOTH the draft and follow-up

1385+ // keys — and cold-start recovery would restore it to the composer AND re-queue it (a

1386+ // duplicate). Mirror send()'s lastPersistedDraft update so the drafts observer treats

1387+ // this store change as our own echo and doesn't write the cleared value back.

1388+ lastPersistedDraft = ""

1389+ container.draftStore.flushDraft(sessionId, "")

1390+ }

1391+ }

1392+

1393+ /** Set or clear the queued follow-up and mirror it to persistence, so a follow-up

1394+ * queued mid-run survives process death (recovered on the next open of this session).

1395+ * Passing null / blank clears both the in-memory value and the persisted copy. */

1396+ private fun setQueuedFollowUp(text: String?) {

1397+ _queuedFollowUp.value = text

1398+ container.draftStore.flushFollowUp(sessionId, text.orEmpty())

1399+ }

1400+

1401+ /** Transient flag set by [refreshMessages] so the top-bar refresh icon can show

1402+ * a brief spinner as immediate tap feedback. The SSE reconnect triggered by

1403+ * refreshMessages may not visibly change [connectionState] (it's already

1404+ * Connected), so without this the tap appears to do nothing. Clears after a

1405+ * short delay or when the connection state next becomes Connected. */

1406+ private val _refreshing = MutableStateFlow(false)

1407+ val refreshing: StateFlow<Boolean> = _refreshing.asStateFlow()

1408+

1409+ /** Manually re-fetch messages by forcing the SSE stream to reconnect, which

1410+ * triggers the repository's re-seed-from-REST logic. Gives the user a recovery

1411+ * path when the SSE stream silently drops and the auto-reconnect re-seed is slow

1412+ * or fails — a pull-to-refresh or top-bar refresh forces a fresh fetch under the

1413+ * existing generation-guarded merge. Also clears [loadError] optimistically and

1414+ * sets [refreshing] for immediate tap feedback. */

1415+ fun refreshMessages() {

1416+ val conn = connection ?: return

1417+ _loadError.value = false

1418+ _loadErrorInline.value = false

1419+ _refreshing.value = true

1420+ conn.events.triggerReconnect()

1421+ viewModelScope.launch {

1422+ delay(NetworkConfig.refreshFeedbackMs)

1423+ _refreshing.value = false

1424+ }

1425+ }

1426+

1427+ /** Invoke a slash-command by name via the server's /command endpoint. */

1428+ fun runCommand(command: Command) {

1429+ val conn = connection ?: return

1430+ // A run is already in flight — surface feedback instead of silently dropping the

1431+ // command (the picker stays openable during a run and dismisses on select).

1432+ if (!beginRun()) {

1433+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1434+ return

1435+ }

1436+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1437+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1438+ runEndedByIdle = false

1439+ viewModelScope.launch {

1440+ runCatchingCancellable {

1441+ conn.repository.runCommand(sessionId, command.name, agent = command.agent)

1442+ }.onFailure {

1443+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1444+ _running.value = false

1445+ }

1446+ }

1447+ }

1448+

1449+ fun abort() {

1450+ val conn = connection ?: return

1451+ // Drop any queued follow-up so the SessionIdle that follows the abort doesn't

1452+ // auto-send it — the user tapped Stop to halt work, not to trigger the next turn.

1453+ setQueuedFollowUp(null)

1454+ if (!_aborting.compareAndSet(false, true)) return

1455+ viewModelScope.launch {

1456+ try {

1457+ // Run the abort POST under NonCancellable so it survives this scope being

1458+ // cancelled. The "Stop and exit" path calls abort() then navigates back

1459+ // immediately, which pops this ViewModel's back-stack entry → onCleared() →

1460+ // viewModelScope.cancel(); without this the in-flight abort is cancelled (often

1461+ // before the request even reaches the server) and the run keeps burning tokens

1462+ // server-side despite the user explicitly stopping it.

1463+ runCatchingCancellable { withContext(NonCancellable) { conn.repository.abort(sessionId) } }

1464+ .onSuccess {

1465+ _running.value = false

1466+ // Close the re-light gate so trailing SSE events in flight between the

1467+ // abort POST's ack and the server's SessionIdle don't re-light the run

1468+ // indicator (and re-arm the FGS / keepScreenOn) after the user hit Stop.

1469+ // send()/runCommand()/continueRun() all open this gate on beginRun();

1470+ // abort() is the one run-ending path that previously missed it.

1471+ runEndedByIdle = true

1472+ // Surface an undo opportunity so an accidental Stop is recoverable.

1473+ // The UI shows a "Stopped — Undo" snackbar; tapping Undo re-sends the

1474+ // last prompt. Only when there's a tracked prompt to undo back to.

1475+ val prompt = lastSentPrompt

1476+ if (prompt != null) _stopUndoEvents.trySend(prompt)

1477+ }

1478+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1479+ } finally {

1480+ _aborting.value = false

1481+ }

1482+ }

1483+ }

1484+

1485+ /** Re-send the most recently-sent user prompt, used by the Stop-undo snackbar so an

1486+ * accidental Stop can be recovered. No-op if no prompt is tracked (e.g. the run was

1487+ * started by a command, not a text prompt). Clears the tracked prompt so a second Undo

1488+ * tap doesn't double-send. */

1489+ fun resendLastPrompt() {

1490+ val prompt = lastSentPrompt ?: return

1491+ lastSentPrompt = null

1492+ send(prompt, includeAttachments = false)

1493+ }

1494+

1495+ fun addAttachment(attachment: PendingAttachment) {

1496+ // Enforce the cumulative size cap across the whole staged set (the per-file size and the

1497+ // count caps are checked upstream). The base64 data URLs are held in memory and

1498+ // re-serialized on every add/remove and again when the request body is built, so an

1499+ // unbounded set OOMs. Reject rather than add, mirroring the other attachment limits'

1500+ // snackbar via errorEvents. Size is the raw (pre-base64) byte count, matching the

1501+ // per-file check, and includes attachments already staged (incl. restored ones).

1502+ val staged = _attachments.value.sumOf { base64DataUrlByteSize(it.part.url) }

1503+ if (staged + base64DataUrlByteSize(attachment.part.url) > NetworkConfig.maxTotalAttachmentBytes) {

1504+ _errorEvents.trySend(ChatError(container.string(R.string.attachment_limit)))

1505+ return

1506+ }

1507+ _attachments.update { it + attachment }

1508+ persistAttachments()

1509+ }

1510+

1511+ fun removeAttachment(id: String) {

1512+ _attachments.update { list -> list.filterNot { it.id == id } }

1513+ persistAttachments()

1514+ }

1515+

1516+ fun clearAttachments() {

1517+ _attachments.value = emptyList()

1518+ persistAttachments()

1519+ }

1520+

1521+ /** Convert each picked Uri to a base64 attachment off the main thread, honoring the

1522+ * per-prompt count cap and surfacing per-file errors via [errorEvents] without aborting

1523+ * the batch. Runs on [viewModelScope] (which survives configuration changes) so an

1524+ * in-flight encode isn't cancelled and its progress counters ([stagingCount] /

1525+ * [stagingFileTotal]) aren't reset to 0 on rotation — the prior UI-side

1526+ * `rememberCoroutineScope` implementation lost both the work and the counters on

1527+ * every config change. */

1528+ fun stageUris(uris: List<android.net.Uri>, context: android.content.Context) {

1529+ if (uris.isEmpty()) return

1530+ val appContext = context.applicationContext

1531+ viewModelScope.launch {

1532+ _stagingCount.value++

1533+ _stagingFileTotal.value += uris.size

1534+ try {

1535+ uris.forEachIndexed { index, uri ->

1536+ if (_attachments.value.size >= NetworkConfig.maxAttachments) {

1537+ _errorEvents.trySend(ChatError(container.string(R.string.attachment_limit)))

1538+ // The cap dropped the rest of this batch; account for the files we

1539+ // won't process so stagingFileTotal doesn't linger over-counted,

1540+ // then abandon the batch. return@launch (not return@forEachIndexed)

1541+ // so the remaining uris aren't re-checked against a never-relieved

1542+ // cap (which would over-decrement the counter and re-fire the

1543+ // snackbar once per leftover uri). The `finally` below still

1544+ // decrements stagingCount.

1545+ _stagingFileTotal.value -= uris.size - index

1546+ return@launch

1547+ }

1548+ when (val result = uri.toAttachmentResult(appContext)) {

1549+ is AttachmentResult.Ok -> addAttachment(result.attachment)

1550+ AttachmentResult.TooLarge -> _errorEvents.trySend(ChatError(container.string(R.string.attachment_too_large)))

1551+ AttachmentResult.Failed -> _errorEvents.trySend(ChatError(container.string(R.string.attachment_failed)))

1552+ }

1553+ _stagingFileTotal.value--

1554+ }

1555+ } finally {

1556+ _stagingCount.value--

1557+ }

1558+ }

1559+ }

1560+

1561+ /** Persist the current staged attachments so an interrupted compose survives process

1562+ * death (mirrors draft persistence). Fire-and-forget on [viewModelScope]. */

1563+ private fun persistAttachments() {

1564+ val snapshot = _attachments.value

1565+ viewModelScope.launch {

1566+ runCatchingCancellable { container.attachmentDraftStore.save(sessionId, snapshot.map { it.toPersisted() }) }

1567+ .onFailure { Log.w("ChatViewModel", "Failed to persist attachments", it) }

1568+ }

1569+ }

1570+

1571+ /** Revert the conversation to just before [messageId], hiding everything after it. The

1572+ * authoritative state also arrives via SessionUpdated; we flag it here for immediate

1573+ * feedback. */

1574+ fun revertTo(messageId: String) {

1575+ val conn = connection ?: return

1576+ viewModelScope.launch {

1577+ runCatchingCancellable { conn.api.revert(sessionId, messageId) }

1578+ .onSuccess {

1579+ _reverted.value = it.isReverted

1580+ _revertDiff.value = it.revert?.diff?.takeIf { diff -> diff.isNotBlank() }

1581+ _editing.value = false

1582+ }

1583+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1584+ }

1585+ }

1586+

1587+ /**

1588+ * Regenerate an assistant reply: revert the conversation to that assistant message (removing

1589+ * it and everything after), then re-send the user prompt that immediately preceded it. A

1590+ * one-tap "try again" mirroring ChatGPT/Claude, instead of the two-step revert + re-Send.

1591+ *

1592+ * Captures the preceding user text *before* the revert (the messages list updates

1593+ * asynchronously via SSE once the revert lands). No-op if there's no preceding user prompt

1594+ * or the assistant message isn't found.

1595+ */

1596+ fun regenerate(assistantMessageId: String) {

1597+ val conn = connection ?: return

1598+ val msgs = messages.value

1599+ val idx = msgs.indexOfFirst { it.info.id == assistantMessageId }

1600+ if (idx < 0) return

1601+ val precedingUserText = (idx - 1 downTo 0)

1602+ .asSequence()

1603+ .map { msgs[it] }

1604+ .firstOrNull { it.info is UserMessage }

1605+ ?.parts

1606+ ?.filterIsInstance<TextPart>()

1607+ ?.joinToString("\n\n") { it.text }

1608+ ?.takeIf { it.isNotBlank() }

1609+ ?: return

1610+ viewModelScope.launch {

1611+ runCatchingCancellable { conn.api.revert(sessionId, assistantMessageId) }

1612+ .onSuccess {

1613+ // send() can return false if the beginRun() CAS lost to a concurrent run

1614+ // or the message had to be enqueued offline and that failed. The revert has

1615+ // already hidden the messages, so a silent false would leave the user with a

1616+ // reverted conversation and no reply and no error — surface it instead.

1617+ val sent = send(precedingUserText, includeAttachments = false)

1618+ if (!sent) {

1619+ _errorEvents.trySend(ChatError(container.string(R.string.error_generic)))

1620+ }

1621+ }

1622+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1623+ }

1624+ }

1625+

1626+ /** Continue a partially-generated assistant reply by sending a "continue" prompt

1627+ * without reverting (unlike [regenerate], which re-runs from the preceding user

1628+ * prompt and loses the partial). The partial reply stays as context so the model

1629+ * can pick up where it left off. This is the standard chat-app "continue" pattern

1630+ * for a reply that was aborted mid-stream. */

1631+ fun continueRun(@Suppress("UNUSED_PARAMETER") assistantMessageId: String) {

1632+ val conn = connection ?: return

1633+ if (running.value || aborting.value) return

1634+ if (!beginRun()) return

1635+ // Reopen the relight gate so this run's streamed parts keep the indicator lit (and a

1636+ // later SessionIdle re-closes it). Without this, runEndedByIdle stays true from the

1637+ // previous run's SessionIdle and the relight guard at the event collector would suppress

1638+ // every streamed part of the continuation, leaving the working indicator / Stop button /

1639+ // foreground service off for the whole run.

1640+ runEndedByIdle = false

1641+ viewModelScope.launch {

1642+ // Route through the repository (not conn.api directly) so the prompt inherits

1643+ // withRetry (transient-failure backoff) and the user's selected model/agent — a

1644+ // direct api.sendPrompt would neither retry nor carry the picker selection, and

1645+ // would mint a fresh idempotency key on every retry attempt instead of sharing one.

1646+ runCatchingCancellable {

1647+ conn.repository.sendPrompt(

1648+ sessionId,

1649+ text = "continue",

1650+ model = _selectedModel.value?.ref,

1651+ agent = _selectedAgent.value,

1652+ )

1653+ }.onFailure {

1654+ _running.value = false

1655+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1656+ }

1657+ }

1658+ }

1659+

1660+ /** Load a previously-sent user prompt back into the composer to edit and re-send.

1661+ * Reverts the conversation to just before [messageId] (hiding it and everything after)

1662+ * and prefills the draft with [text]. The next Send continues from that checkpoint,

1663+ * effectively replacing the edited message; the reverted banner's Undo restores it.

1664+ * Overwrites the current draft — this is an explicit edit action on that message. */

1665+ fun editMessage(messageId: String, text: String) {

1666+ val conn = connection ?: return

1667+ _draft.value = text.take(NetworkConfig.maxDraftLengthChars)

1668+ _pendingQuote.value = null

1669+ // Do NOT delegate to revertTo(): revertTo's onSuccess sets _editing = false, which races

1670+ // this synchronous _editing = true (the async revert completes after editMessage returns

1671+ // and clobbers the banner). Inline the revert so editMessage owns the _editing lifecycle:

1672+ // set it true on success, matching the documented contract ("Cleared on unrevert and on

1673+ // send"). revertTo() (the manual revert button) still clears _editing itself.

1674+ viewModelScope.launch {

1675+ runCatchingCancellable { conn.api.revert(sessionId, messageId) }

1676+ .onSuccess {

1677+ _reverted.value = it.isReverted

1678+ _revertDiff.value = it.revert?.diff?.takeIf { diff -> diff.isNotBlank() }

1679+ _editing.value = true

1680+ }

1681+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1682+ }

1683+ }

1684+

1685+ /** Prefill the composer with [text] as a Markdown blockquote so the user can respond to a

1686+ * specific message inline. Appends to any existing draft (with a blank line) rather than

1687+ * overwriting, so quoting doesn't discard text already being typed. Also stashes the raw

1688+ * quoted text in [pendingQuote] so the composer can show a dismissible preview card. */

1689+ fun quoteReply(text: String) {

1690+ val quoted = text.trim().lineSequence().joinToString("\n") { "> $it" }

1691+ if (quoted.isBlank()) return

1692+ val current = _draft.value

1693+ val combined = if (current.isBlank()) "$quoted\n\n" else "$current\n\n$quoted\n\n"

1694+ // Cap like the composer's typed/pasted/dictated input so quoting onto a near-full draft

1695+ // can't push it past the limit (negative remaining counter + an over-cap prompt sent).

1696+ _draft.value = combined.take(NetworkConfig.maxDraftLengthChars)

1697+ _pendingQuote.value = text.trim().takeIf { it.isNotBlank() }

1698+ }

1699+

1700+ /** Remove the pending quote-reply preview and strip the `>`-prefixed blockquote lines from

1701+ * the draft so canceling the quote card actually removes the quoted text, not just the chip.

1702+ * Strips by leading `> ` prefix (structural match) rather than by exact full-text replace,

1703+ * so a user who edited any quoted line is still cleaned up — the exact-text replaces would

1704+ * silently no-op on an edit, leaving orphan `>` lines in the draft after the chip vanished. */

1705+ fun cancelQuoteReply() {

1706+ val removed = _pendingQuote.value ?: return

1707+ _pendingQuote.value = null

1708+ val quoteLineCount = removed.trim().lineSequence().count()

1709+ // Walk the draft and drop the first contiguous run of `> `-prefixed lines that matches

1710+ // the stashed quote's line count (the block quoteReply inserted). Lines the user edited

1711+ // still begin with `> ` (quoteReply prefixed every line), so a prefix match finds them

1712+ // even when their trailing content diverges from the stashed original.

1713+ val lines = _draft.value.split("\n").toMutableList()

1714+ var runStart = -1

1715+ var runLen = 0

1716+ var i = 0

1717+ while (i < lines.size) {

1718+ if (lines[i].startsWith("> ") || lines[i] == ">") {

1719+ if (runStart < 0) runStart = i

1720+ runLen++

1721+ if (runLen == quoteLineCount) {

1722+ // Strip the run plus a single trailing blank line that separated the quote

1723+ // from the reply (quoteReply appends "\n\n" after the block).

1724+ val stripUntil = i + 1

1725+ if (stripUntil < lines.size && lines[stripUntil].isEmpty()) {

1726+ lines.subList(runStart, stripUntil + 1).clear()

1727+ } else {

1728+ lines.subList(runStart, stripUntil).clear()

1729+ }

1730+ break

1731+ }

1732+ i++

1733+ } else {

1734+ runStart = -1

1735+ runLen = 0

1736+ i++

1737+ }

1738+ }

1739+ _draft.value = lines.joinToString("\n").trimStart()

1740+ }

1741+

1742+ /** Fork the conversation by creating a brand-new session seeded with [text] as its first

1743+ * prompt (using the currently-selected model/agent). Emits the new session id via

1744+ * [branchEvents] so the UI can navigate to it. There's no server-side "branch" endpoint,

1745+ * so this starts a fresh session from the chosen prompt rather than copying history. */

1746+ fun branchFrom(text: String) {

1747+ val conn = connection ?: return

1748+ val prompt = text.trim()

1749+ if (prompt.isEmpty()) return

1750+ viewModelScope.launch {

1751+ var createdId: String? = null

1752+ runCatchingCancellable {

1753+ val session = conn.repository.createSession(title = null)

1754+ createdId = session.id

1755+ conn.repository.sendPrompt(

1756+ session.id,

1757+ prompt,

1758+ model = _selectedModel.value?.ref,

1759+ agent = _selectedAgent.value,

1760+ )

1761+ session.id

1762+ }

1763+ .onSuccess { newId -> _branchEvents.trySend(newId) }

1764+ .onFailure {

1765+ // If the session was created but the prompt failed, delete the orphaned

1766+ // empty session so failed branches don't accumulate on the server.

1767+ val id = createdId

1768+ if (id != null) {

1769+ runCatchingCancellable { conn.repository.deleteSession(id) }

1770+ }

1771+ _errorEvents.trySend(ChatError(container.string(R.string.branch_failed)))

1772+ }

1773+ }

1774+ }

1775+

1776+ /** Undo the active revert checkpoint, restoring the hidden messages. */

1777+ fun unrevert() {

1778+ val conn = connection ?: return

1779+ viewModelScope.launch {

1780+ runCatchingCancellable { conn.api.unrevert(sessionId) }

1781+ .onSuccess {

1782+ _reverted.value = it.isReverted

1783+ _revertDiff.value = it.revert?.diff?.takeIf { diff -> diff.isNotBlank() }

1784+ _editing.value = false

1785+ }

1786+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1787+ }

1788+ }

1789+

1790+ /** Create (or fetch the existing) public share link. The URL is exposed via [shareUrl]

1791+ * and also emitted once via [shareLinkEvents] so the UI can copy it to the clipboard. */

1792+ fun shareSession() {

1793+ val conn = connection ?: return

1794+ viewModelScope.launch {

1795+ runCatchingCancellable { conn.api.shareSession(sessionId) }

1796+ .onSuccess { session ->

1797+ val url = session.share?.url?.takeIf { it.isNotBlank() }

1798+ _shareUrl.value = url

1799+ if (url != null) _shareLinkEvents.trySend(url)

1800+ }

1801+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1802+ }

1803+ }

1804+

1805+ /** Revoke the session's public share link. */

1806+ fun unshareSession() {

1807+ val conn = connection ?: return

1808+ viewModelScope.launch {

1809+ runCatchingCancellable { conn.api.unshareSession(sessionId) }

1810+ .onSuccess { _shareUrl.value = it.share?.url?.takeIf { it.isNotBlank() } }

1811+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1812+ }

1813+ }

1814+

1815+ /** Compact the conversation via the summarize endpoint; the summary streams back via SSE.

1816+ * Uses the currently-selected model (required by the endpoint). */

1817+ fun summarize() {

1818+ val conn = connection ?: return

1819+ val model = _selectedModel.value?.ref ?: run {

1820+ _errorEvents.trySend(ChatError(container.string(R.string.needs_model)))

1821+ return

1822+ }

1823+ if (!beginRun()) {

1824+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1825+ return

1826+ }

1827+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1828+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1829+ runEndedByIdle = false

1830+ viewModelScope.launch {

1831+ runCatchingCancellable { conn.api.summarize(sessionId, model) }

1832+ .onFailure {

1833+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1834+ _running.value = false

1835+ }

1836+ }

1837+ }

1838+

1839+ /** Analyze the project and (re)generate its AGENTS.md; the run streams back via SSE. */

1840+ fun initProject() {

1841+ val conn = connection ?: return

1842+ if (!beginRun()) {

1843+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1844+ return

1845+ }

1846+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1847+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1848+ runEndedByIdle = false

1849+ viewModelScope.launch {

1850+ runCatchingCancellable { conn.api.initSession(sessionId) }

1851+ .onFailure {

1852+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1853+ _running.value = false

1854+ }

1855+ }

1856+ }

1857+

1858+ /** Run a one-off shell [command] in the session's worktree; output streams back via SSE.

1859+ * The server requires an agent to scope the run — use the selected one, else the primary. */

1860+ fun runShell(command: String) {

1861+ val conn = connection ?: return

1862+ val cmd = command.trim()

1863+ if (cmd.isEmpty()) return

1864+ val agent = _selectedAgent.value

1865+ ?: _agents.value.firstOrNull { it.isPrimary }?.name

1866+ ?: _agents.value.firstOrNull()?.name

1867+ ?: DEFAULT_SHELL_AGENT

1868+ if (!beginRun()) {

1869+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1870+ return

1871+ }

1872+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1873+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1874+ runEndedByIdle = false

1875+ viewModelScope.launch {

1876+ runCatchingCancellable { conn.api.shell(sessionId, cmd, agent, _selectedModel.value?.ref) }

1877+ .onFailure {

1878+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1879+ _running.value = false

1880+ }

1881+ }

1882+ }

1883+

1884+ /** Rename the current session via PATCH /session/:id. On success updates [sessionTitle]

1885+ * so the top bar reflects the new name immediately. A failure surfaces as a snackbar;

1886+ * the caller keeps the dialog open so the user can retry without retyping. */

1887+ fun renameSession(newTitle: String) {

1888+ val conn = connection ?: return

1889+ val title = newTitle.trim()

1890+ if (title.isEmpty() || title == _sessionTitle.value) return

1891+ viewModelScope.launch {

1892+ runCatchingCancellable { conn.api.updateSession(sessionId, title) }

1893+ .onSuccess { _sessionTitle.value = it.displayTitle }

1894+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1895+ }

1896+ }

1897+

1898+ /** Delete the current session via DELETE /session/:id. Schedules a deferred delete with an

1899+ * undo window and signals [deleteUndoEvents] so the ChatScreen shows an Undo snackbar

1900+ * *over the conversation the user is viewing* — they can cancel without first being

1901+ * navigated back to the session list. The actual REST delete runs after

1902+ * [NetworkConfig.undoDeleteDelayMs]; cancel via [cancelSessionDelete]. If the window

1903+ * expires, the scheduled delete's onDeleted sets [sessionDeleted] so the UI navigates away.

1904+ * A failure surfaces as a snackbar. */

1905+ fun deleteSession() {

1906+ val conn = connection ?: return

1907+ container.scheduleSessionDelete(

1908+ id = sessionId,

1909+ delayMs = NetworkConfig.undoDeleteDelayMs,

1910+ // Navigate away only once the deferred delete actually commits — so an in-place Undo

1911+ // before the window expires keeps the user on this conversation.

1912+ onDeleted = { _sessionDeleted.value = true },

1913+ onError = { _errorEvents.trySend(ChatError(container.friendlyError(it))) },

1914+ )

1915+ _deleteUndoEvents.tryEmit(sessionId)

1916+ }

1917+

1918+ /** Cancel a delete scheduled by [deleteSession] (the in-chat Undo action). Returns true if the

1919+ * delete was still pending (Undo succeeded). */

1920+ fun cancelSessionDelete(): Boolean = container.cancelSessionDelete(sessionId)

1921+

1922+ /** Cancel a delete scheduled for [id] — the `collectLatest` undo path in ChatScreen calls

1923+ * this with the tracked `pending` id when a newer delete supersedes an in-flight one, so

1924+ * the prior session's deferred REST delete is withdrawn (no-op if it already fired)

1925+ * instead of being left to fire with no reachable Undo button. Mirrors

1926+ * [soy.iko.opencode.ui.session.SessionListViewModel.undoDelete]. Returns false when [id]

1927+ * isn't this VM's session (defensive — a ChatScreen only ever deletes its own session). */

1928+ fun cancelSessionDelete(id: String): Boolean {

1929+ if (id != sessionId) return false

1930+ return container.cancelSessionDelete(id)

1931+ }

1932+

1933+ /** Reconnect to the most recently used server profile (used when the connection is gone). */

1934+ fun reconnect() {

1935+ if (container.activeConnection.value != null) return

1936+ // Guard against concurrent reconnect calls: the user can tap the button

1937+ // multiple times while _reconnecting is true, which would launch parallel

1938+ // connect() coroutines that race to set the active connection, leaking the

1939+ // intermediate connections.

1940+ if (!_reconnecting.compareAndSet(false, true)) return

1941+ viewModelScope.launch {

1942+ try {

1943+ val recent = runCatchingCancellable { container.profileStore.profiles.first() }

1944+ .getOrDefault(emptyList())

1945+ .firstOrNull()

1946+ if (recent == null) {

1947+ _errorEvents.trySend(ChatError(container.string(R.string.no_servers_to_reconnect)))

1948+ return@launch

1949+ }

1950+ runCatchingCancellable {

1951+ val conn = container.connect(recent)

1952+ conn.api.ping()

1953+ }.onFailure {

1954+ container.disconnect()

1955+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1956+ }

1957+ } finally {

1958+ _reconnecting.value = false

1959+ }

1960+ }

1961+ }

1962+

1963+ fun respondPermission(permission: Permission, response: PermissionResponse) {

1964+ val conn = connection ?: return

1965+ // Record a session-scoped grant so subsequent matching requests are auto-answered.

1966+ // SESSION maps to ONCE on the wire (the server has no session-scope concept); the

1967+ // client-side set is what gives it the "for this session" semantics.

1968+ if (response == PermissionResponse.SESSION) {

1969+ val type = permission.type.orEmpty()

1970+ val pattern = permission.patternText.orEmpty()

1971+ if (type.isNotEmpty()) sessionAllowed.add(type to pattern)

1972+ }

1973+ // Dismiss optimistically (revealing any queued request); permission.replied will confirm.

1974+ // If the call fails we re-surface this request so the user can retry instead of being stuck

1975+ // with a dismissed dialog and a tool run that's still paused server-side.

1976+ resolvePermission(permission.id)

1977+ viewModelScope.launch {

1978+ runCatchingCancellable { conn.api.respondPermission(sessionId, permission.id, response) }

1979+ .onFailure {

1980+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1981+ // Revoke the session-scoped grant on failure: enqueuePermission() auto-responds

1982+ // when (type, pattern) is in sessionAllowed, so leaving the entry in would loop

1983+ // respondPermission -> fail -> enqueuePermission -> respondPermission ... forever,

1984+ // spamming the dead server and the error snackbar without ever re-prompting the

1985+ // user. Removing it makes enqueuePermission fall through to re-queueing the

1986+ // request for the dialog so the user can retry.

1987+ //

1988+ // This must cover BOTH the SESSION and ONCE response paths: enqueuePermission's

1989+ // auto-respond sends ONCE, not SESSION, so guarding only the SESSION branch (as

1990+ // the original code did) leaves the entry in and still loops when the auto-reply

1991+ // fails. Revoke unconditionally on any failure.

1992+ val type = permission.type.orEmpty()

1993+ val pattern = permission.patternText.orEmpty()

1994+ if (type.isNotEmpty()) sessionAllowed.remove(type to pattern)

1995+ enqueuePermission(permission)

1996+ }

1997+ }

1998+ }

1999+

2000+ private companion object {

2001+ /** Fallback agent for the shell endpoint when none is selected and no agent catalog

2002+ * loaded. opencode's default primary agent is "build". */

2003+ const val DEFAULT_SHELL_AGENT = "build"

2004+ }

2005+

2006+ override fun onCleared() {

2007+ super.onCleared()

2008+ // Flush any pending debounced draft so it survives navigation. Uses an

2009+ // asynchronous apply() (not a synchronous commit) so the main thread isn't

2010+ // blocked on disk I/O — Android's SharedPreferences framework guarantees

2011+ // pending apply() writes are flushed before the process exits.

2012+ // Flush the pending draft — including an empty one. Persistence is otherwise debounced,

2013+ // so if the user cleared the input and navigated back within the debounce window, the

2014+ // debounce coroutine was cancelled with viewModelScope and the prefs still hold the

2015+ // previous non-empty draft. flushDraft() removes the key when the text is blank, so

2016+ // flushing commits the clear instead of resurrecting the deleted text.

2017+ //

2018+ // BUT respect the send-in-flight guard: send() optimistically clears _draft to "" WITHOUT

2019+ // persisting the clear so a failed send can restore the text. If the user taps Send then

2020+ // immediately navigates back (cancelling the in-flight send), flushing the blank _draft here

2021+ // would remove the persisted key and erase the pre-send draft with no recovery. Skip the

2022+ // flush while a send is in flight so the pre-send draft stays persisted (recoverable).

2023+ if (!suppressDraftPersist.get()) container.draftStore.flushDraft(sessionId, _draft.value)

2024+ }

2025+}

app/src/main/java/soy/iko/opencode/ui/chat/CommandPickerSheet.ktnew file+248

@@ -0,0 +1,248 @@

1+package soy.iko.opencode.ui.chat

2+

3+import androidx.compose.foundation.clickable

4+import androidx.compose.foundation.layout.Column

5+import androidx.compose.foundation.layout.Row

6+import androidx.compose.foundation.layout.fillMaxWidth

7+import androidx.compose.foundation.layout.heightIn

8+import androidx.compose.foundation.layout.imePadding

9+import androidx.compose.foundation.layout.navigationBarsPadding

10+import androidx.compose.foundation.layout.padding

11+import androidx.compose.foundation.lazy.LazyColumn

12+import androidx.compose.foundation.lazy.items

13+import androidx.compose.foundation.text.KeyboardActions

14+import androidx.compose.foundation.text.KeyboardOptions

15+import androidx.compose.material.icons.Icons

16+import androidx.compose.material.icons.automirrored.filled.PlaylistPlay

17+import androidx.compose.material.icons.filled.Close

18+import androidx.compose.material.icons.filled.Search

19+import androidx.compose.material3.CircularProgressIndicator

20+import androidx.compose.material3.ExperimentalMaterial3Api

21+import androidx.compose.material3.Icon

22+import androidx.compose.material3.IconButton

23+import androidx.compose.material3.MaterialTheme

24+import androidx.compose.material3.ModalBottomSheet

25+import androidx.compose.material3.OutlinedTextField

26+import androidx.compose.material3.Text

27+import androidx.compose.material3.AlertDialog

28+import androidx.compose.material3.TextButton

29+import androidx.compose.material3.rememberModalBottomSheetState

30+import androidx.compose.runtime.Composable

31+import androidx.compose.runtime.LaunchedEffect

32+import androidx.compose.runtime.getValue

33+import androidx.compose.runtime.mutableStateOf

34+import androidx.compose.runtime.remember

35+import androidx.compose.runtime.rememberCoroutineScope

36+import androidx.compose.runtime.saveable.rememberSaveable

37+import androidx.compose.runtime.setValue

38+import androidx.compose.ui.Alignment

39+import androidx.compose.ui.Modifier

40+import androidx.compose.ui.focus.FocusRequester

41+import androidx.compose.ui.focus.focusRequester

42+import androidx.compose.ui.hapticfeedback.HapticFeedbackType

43+import androidx.compose.ui.platform.LocalHapticFeedback

44+import androidx.compose.ui.platform.LocalSoftwareKeyboardController

45+import androidx.compose.ui.res.stringResource

46+import androidx.compose.ui.semantics.Role

47+import androidx.compose.ui.semantics.contentDescription

48+import androidx.compose.ui.semantics.semantics

49+import androidx.compose.ui.semantics.stateDescription

50+import androidx.compose.ui.text.input.ImeAction

51+import androidx.compose.ui.text.style.TextOverflow

52+import androidx.compose.ui.unit.dp

53+import androidx.compose.foundation.layout.Box

54+import kotlinx.coroutines.launch

55+import soy.iko.opencode.data.model.Command

56+import soy.iko.opencode.data.network.NetworkConfig

57+import soy.iko.opencode.R

58+

59+/** Bottom sheet that lists slash-commands; selecting one invokes it. */

60+@OptIn(ExperimentalMaterial3Api::class)

61+@Composable

62+fun CommandPickerSheet(

63+ commands: List<Command>,

64+ loading: Boolean,

65+ error: Boolean,

66+ onSelect: (Command) -> Unit,

67+ onRetry: () -> Unit,

68+ onDismiss: () -> Unit,

69+) {

70+ // Persist only the command *name* (a savable String), not the Command itself: a

71+ // kotlinx @Serializable Command is neither Parcelable nor java.io.Serializable, so

72+ // routing it through rememberSaveable crashes on rotation while the confirm dialog

73+ // is open. Re-resolve the full Command from the current list for rendering.

74+ var pendingCommandName by rememberSaveable { mutableStateOf<String?>(null) }

75+ val pendingCommand = pendingCommandName?.let { name -> commands.firstOrNull { it.name == name } }

76+ // Hoist SheetState + skipPartiallyExpanded (see AgentPickerSheet for the full rationale).

77+ val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)

78+ val scope = rememberCoroutineScope()

79+ ModalBottomSheet(onDismissRequest = onDismiss, sheetState = sheetState) {

80+ Text(

81+ stringResource(R.string.commands),

82+ style = MaterialTheme.typography.titleMedium,

83+ modifier = Modifier.padding(start = 24.dp, end = 24.dp, bottom = 8.dp),

84+ )

85+ if (loading) {

86+ val loadingLabel = stringResource(R.string.loading_commands)

87+ Column(

88+ modifier = Modifier.fillMaxWidth().padding(vertical = 24.dp).imePadding(),

89+ horizontalAlignment = Alignment.CenterHorizontally,

90+ ) {

91+ CircularProgressIndicator(Modifier.semantics { contentDescription = loadingLabel })

92+ Text(

93+ stringResource(R.string.loading_commands),

94+ style = MaterialTheme.typography.bodyMedium,

95+ color = MaterialTheme.colorScheme.onSurfaceVariant,

96+ modifier = Modifier.padding(top = 8.dp),

97+ )

98+ }

99+ } else if (error && commands.isEmpty()) {

100+ Column(

101+ modifier = Modifier.fillMaxWidth().padding(horizontal = 24.dp, vertical = 16.dp),

102+ horizontalAlignment = Alignment.CenterHorizontally,

103+ ) {

104+ Text(

105+ stringResource(R.string.load_failed),

106+ style = MaterialTheme.typography.bodyMedium,

107+ color = MaterialTheme.colorScheme.error,

108+ )

109+ TextButton(onClick = onRetry) { Text(stringResource(R.string.retry)) }

110+ }

111+ } else if (commands.isEmpty()) {

112+ Text(

113+ stringResource(R.string.no_commands),

114+ style = MaterialTheme.typography.bodyMedium,

115+ color = MaterialTheme.colorScheme.onSurfaceVariant,

116+ modifier = Modifier.padding(horizontal = 24.dp, vertical = 16.dp),

117+ )

118+ } else {

119+ var query by rememberSaveable { mutableStateOf("") }

120+ val keyboardController = LocalSoftwareKeyboardController.current

121+ val haptics = LocalHapticFeedback.current

122+ // Resolved once (not per-row): the semantics lambda below isn't a composable scope,

123+ // so stringResource can't be called inside it.

124+ val destructiveStateLabel = stringResource(R.string.command_confirmation_required)

125+ // Auto-focus the search field (and raise the keyboard) when the sheet opens, but skip

126+ // it for a short list that's faster to scan by eye than to filter.

127+ val searchFocus = remember { FocusRequester() }

128+ LaunchedEffect(Unit) {

129+ if (commands.size > NetworkConfig.pickerSearchAutofocusThreshold) {

130+ runCatching { searchFocus.requestFocus() }

131+ }

132+ }

133+ OutlinedTextField(

134+ value = query,

135+ onValueChange = { query = it },

136+ modifier = Modifier.fillMaxWidth().padding(horizontal = 24.dp, vertical = 8.dp).focusRequester(searchFocus),

137+ placeholder = { Text(stringResource(R.string.search_commands)) },

138+ leadingIcon = { Icon(Icons.Filled.Search, contentDescription = null) },

139+ trailingIcon = if (query.isNotEmpty()) {

140+ {

141+ IconButton(onClick = { query = "" }) {

142+ Icon(Icons.Filled.Close, contentDescription = stringResource(R.string.clear_search))

143+ }

144+ }

145+ } else null,

146+ singleLine = true,

147+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search),

148+ keyboardActions = KeyboardActions(onSearch = { keyboardController?.hide() }),

149+ )

150+ // Dedupe the source list once, then filter the distinct list.

151+ val distinct = remember(commands) { commands.distinctBy { it.name } }

152+ val filtered = remember(distinct, query) {

153+ val q = query.trim()

154+ if (q.isEmpty()) distinct

155+ else distinct.filter {

156+ it.name.contains(q, ignoreCase = true) ||

157+ it.displayDescription.contains(q, ignoreCase = true)

158+ }

159+ }

160+ if (filtered.isEmpty()) {

161+ Text(

162+ stringResource(R.string.no_commands_match, query.trim()),

163+ style = MaterialTheme.typography.bodyMedium,

164+ color = MaterialTheme.colorScheme.onSurfaceVariant,

165+ modifier = Modifier.padding(horizontal = 24.dp, vertical = 16.dp),

166+ )

167+ } else {

168+ LazyColumn(

169+ modifier = Modifier

170+ .heightIn(max = NetworkConfig.pickerSheetMaxHeightDp.dp)

171+ .imePadding()

172+ .navigationBarsPadding(),

173+ ) {

174+ items(filtered, key = { it.name }) { cmd ->

175+ val destructive = isDestructiveCommand(cmd.name)

176+ Column(

177+ modifier = Modifier

178+ .fillMaxWidth()

179+ .clickable(role = Role.Button) {

180+ haptics.performHapticFeedback(HapticFeedbackType.TextHandleMove)

181+ if (destructive) {

182+ pendingCommandName = cmd.name

183+ } else {

184+ scope.launch { sheetState.hide() }.invokeOnCompletion { onDismiss() }

185+ onSelect(cmd)

186+ }

187+ }

188+ .semantics {

189+ if (destructive) stateDescription = destructiveStateLabel

190+ }

191+ .padding(horizontal = 24.dp, vertical = 12.dp),

192+ ) {

193+ Row(

194+ verticalAlignment = Alignment.CenterVertically,

195+ ) {

196+ Icon(Icons.AutoMirrored.Filled.PlaylistPlay, contentDescription = null)

197+ Text(

198+ "/${cmd.name}",

199+ style = MaterialTheme.typography.bodyLarge,

200+ modifier = Modifier.padding(start = 8.dp),

201+ )

202+ }

203+ Text(

204+ cmd.displayDescription,

205+ style = MaterialTheme.typography.bodySmall,

206+ color = MaterialTheme.colorScheme.onSurfaceVariant,

207+ maxLines = 2,

208+ overflow = TextOverflow.Ellipsis,

209+ modifier = Modifier.padding(start = 28.dp, top = 2.dp),

210+ )

211+ }

212+ }

213+ }

214+ }

215+ }

216+ }

217+

218+ // Confirmation for commands whose name suggests they may discard work or reset state,

219+ // so a tap doesn't irrevocably run e.g. /clear or /compact without consent.

220+ pendingCommand?.let { cmd ->

221+ AlertDialog(

222+ onDismissRequest = { pendingCommandName = null },

223+ title = { Text(stringResource(R.string.run_command_title, cmd.name)) },

224+ text = { Text(stringResource(R.string.run_command_text, "/${cmd.name}")) },

225+ confirmButton = {

226+ TextButton(onClick = {

227+ pendingCommandName = null

228+ scope.launch { sheetState.hide() }.invokeOnCompletion { onDismiss() }

229+ onSelect(cmd)

230+ }) { Text(stringResource(R.string.run)) }

231+ },

232+ dismissButton = {

233+ TextButton(onClick = { pendingCommandName = null }) { Text(stringResource(R.string.cancel)) }

234+ },

235+ )

236+ }

237+}

238+

239+/**

240+ * Heuristic for commands that may be destructive (discard work / reset state) and so

241+ * warrant a confirmation step before invocation. Matches common opencode slash-command

242+ * names; non-matching commands invoke immediately.

243+ */

244+private fun isDestructiveCommand(name: String): Boolean {

245+ val n = name.lowercase()

246+ return n in setOf("clear", "compact", "delete", "reset", "remove", "wipe", "drop", "purge") ||

247+ n.startsWith("clear-") || n.startsWith("compact-") || n.startsWith("reset-")

248+}

app/src/main/java/soy/iko/opencode/ui/chat/ConversationExport.ktnew file+236

@@ -0,0 +1,236 @@

1+package soy.iko.opencode.ui.chat

2+

3+import soy.iko.opencode.data.model.AssistantMessage

4+import soy.iko.opencode.data.model.FilePart

5+import soy.iko.opencode.data.model.MessageWithParts

6+import soy.iko.opencode.data.model.ReasoningPart

7+import soy.iko.opencode.data.model.TextPart

8+import soy.iko.opencode.data.model.ToolCompleted

9+import soy.iko.opencode.data.model.ToolError

10+import soy.iko.opencode.data.model.ToolPart

11+import soy.iko.opencode.data.model.ToolRunning

12+import soy.iko.opencode.data.model.UserMessage

13+import soy.iko.opencode.data.model.sourcePath

14+import soy.iko.opencode.data.network.NetworkConfig

15+import soy.iko.opencode.data.network.OpencodeJson

16+import kotlinx.serialization.builtins.ListSerializer

17+import java.text.SimpleDateFormat

18+import java.util.Date

19+import java.util.Locale

20+

21+/**

22+ * Render a conversation as a lossless JSON document for sharing/exporting. Unlike

23+ * [buildConversationMarkdown], this preserves the full fidelity of the server's

24+ * message stream: tool outputs are not truncated, file parts keep their source

25+ * objects and data URLs, reasoning keeps its raw text, and the polymorphic

26+ * `type`/`role` discriminators are retained. That makes the JSON export suitable

27+ * for re-importing into another client, for auditing exactly what the agent did,

28+ * and for bug reports where the Markdown summary would have dropped detail.

29+ *

30+ * Uses the shared [OpencodeJson] so the on-the-wire shape round-trips — the same

31+ * serializer that decoded the messages re-encodes them, including the `Unknown*`

32+ * fallback variants for parts/roles the client doesn't otherwise model.

33+ */

34+fun buildConversationJson(messages: List<MessageWithParts>): String =

35+ try {

36+ // Explicit serializer (mirrors MessageCacheStore) rather than the reified

37+ // encodeToString overload, so the polymorphic Part/MessageInfo discriminators

38+ // registered in OpencodeJson are exercised on the way back out.

39+ OpencodeJson.encodeToString(ListSerializer(MessageWithParts.serializer()), messages)

40+ } catch (e: Throwable) {

41+ // Fall back to an explicit error document rather than crashing the share

42+ // flow; a serialization failure here is most likely a model invariant bug

43+ // and a silent empty string would be harder to diagnose than this stub.

44+ "{\"error\":\"conversation_json_export_failed\",\"message\":\"${e.message ?: e.javaClass.simpleName}\"}"

45+ }

46+

47+/**

48+ * Render a conversation as Markdown for sharing/exporting. Each message becomes a

49+ * role-prefixed section containing its text parts; reasoning is exported as a blockquote

50+ * and tool calls are summarized so the transcript shows what the agent *did*, not just

51+ * what it said. Pure (no Android deps) so it can be unit-tested directly.

52+ */

53+fun buildConversationMarkdown(messages: List<MessageWithParts>, title: String?): String {

54+ val sb = StringBuilder(messages.size * 128)

55+ if (!title.isNullOrBlank()) {

56+ sb.append("# ").append(escapeMarkdown(title.trim())).append("\n\n")

57+ }

58+ appendMetadataHeader(sb, messages)

59+ for (message in messages) {

60+ val heading = when (message.info) {

61+ is UserMessage -> "## You"

62+ is AssistantMessage -> "## opencode"

63+ else -> null

64+ } ?: continue

65+ // The assistant's reply text is already Markdown (code fences, bold, headings);

66+ // escaping it would render the export as backslash noise. Only escape user-authored

67+ // text, which isn't expected to be Markdown.

68+ val escapeText = message.info is UserMessage

69+ val body = message.parts

70+ .mapNotNull { part ->

71+ when (part) {

72+ is TextPart -> part.text.takeIf { it.isNotBlank() }

73+ ?.let { if (escapeText) escapeMarkdown(it) else it }

74+ is ReasoningPart -> part.text.takeIf { it.isNotBlank() }

75+ ?.let { text -> text.trim().lines().joinToString("\n") { "> _${escapeMarkdown(it)}_" } }

76+ is ToolPart -> formatToolCall(part)

77+ is FilePart -> {

78+ // Image/file attachments aren't portable in a text export; emit a

79+ // labeled placeholder so the transcript records that one was present

80+ // (useful for debugging) instead of silently dropping it.

81+ val name = part.sourcePath ?: part.url ?: part.filename ?: "attachment"

82+ if (part.mime?.startsWith("image/") == true) "_[image: ${escapeMarkdown(name)}]_"

83+ else "_[file: ${escapeMarkdown(name)}]_"

84+ }

85+ else -> null

86+ }

87+ }

88+ .joinToString("\n\n")

89+ .trim()

90+ if (body.isEmpty()) continue

91+ sb.append(heading).append("\n\n")

92+ // Per-message timestamp (ISO, local zone) so an exported transcript is useful for

93+ // support/debugging — without it only the metadata header's global range has timing.

94+ message.info.time?.created?.let { ts -> sb.append("_").append(formatExportTimestamp(ts)).append("_\n\n") }

95+ sb.append(body).append("\n\n")

96+ }

97+ return sb.toString().trimEnd()

98+}

99+

100+/**

101+ * Render a single message as Markdown for per-message sharing. A trimmed-down version of

102+ * [buildConversationMarkdown] that emits just this message's role heading + body (no metadata

103+ * header), so a shared single reply/exchange is self-contained without dragging the whole

104+ * transcript. Returns null when the message has no exportable body (e.g. an image-only prompt).

105+ */

106+fun buildMessageMarkdown(message: MessageWithParts): String? {

107+ val heading = when (message.info) {

108+ is UserMessage -> "## You"

109+ is AssistantMessage -> "## opencode"

110+ else -> return null

111+ }

112+ val escapeText = message.info is UserMessage

113+ val body = message.parts

114+ .mapNotNull { part ->

115+ when (part) {

116+ is TextPart -> part.text.takeIf { it.isNotBlank() }

117+ ?.let { if (escapeText) escapeMarkdown(it) else it }

118+ is ReasoningPart -> part.text.takeIf { it.isNotBlank() }

119+ ?.let { text -> text.trim().lines().joinToString("\n") { "> _${escapeMarkdown(it)}_" } }

120+ is ToolPart -> formatToolCall(part)

121+ is FilePart -> {

122+ val name = part.sourcePath ?: part.url ?: part.filename ?: "attachment"

123+ if (part.mime?.startsWith("image/") == true) "_[image: ${escapeMarkdown(name)}]_"

124+ else "_[file: ${escapeMarkdown(name)}]_"

125+ }

126+ else -> null

127+ }

128+ }

129+ .joinToString("\n\n")

130+ .trim()

131+ if (body.isEmpty()) return null

132+ return buildString {

133+ append(heading).append("\n\n")

134+ message.info.time?.created?.let { ts -> append("_").append(formatExportTimestamp(ts)).append("_\n\n") }

135+ append(body)

136+ }

137+}

138+

139+/** Format an epoch-millis as a locale-stable ISO-ish timestamp for the export. Thread-confined

140+ * to the exporting coroutine, so a shared SimpleDateFormat (not thread-safe) is fine. */

141+private fun formatExportTimestamp(epochMillis: Long): String =

142+ SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault()).format(Date(epochMillis))

143+

144+/** Append a metadata header (message counts + timestamp range) so a shared transcript has

145+ * context for support/debugging. Skipped when there are no messages. */

146+private fun appendMetadataHeader(sb: StringBuilder, messages: List<MessageWithParts>) {

147+ if (messages.isEmpty()) return

148+ val userCount = messages.count { it.info is UserMessage }

149+ val assistantCount = messages.count { it.info is AssistantMessage }

150+ val firstTime = messages.firstOrNull()?.info?.time?.created

151+ val lastTime = messages.lastOrNull()?.info?.time?.created

152+ sb.append("> ")

153+ // Pluralize each noun independently (a prior bug keyed both on userCount, so "user" was

154+ // never pluralized and "message" was pluralized based on the wrong count).

155+ sb.append("$userCount user")

156+ if (userCount != 1) sb.append("s")

157+ sb.append(" · $assistantCount assistant message")

158+ if (assistantCount != 1) sb.append("s")

159+ if (firstTime != null && lastTime != null) {

160+ sb.append(" · ${formatExportTimestamp(firstTime)} → ${formatExportTimestamp(lastTime)}")

161+ }

162+ sb.append("\n\n---\n\n")

163+}

164+

165+/** Render a tool call as a compact, readable blockquote summary: the tool name, its

166+ * human-readable title (if any), and a truncated output/error. Keeps the exported

167+ * transcript useful when the agent's work (edits, command runs) is the substance. */

168+private fun formatToolCall(part: ToolPart): String? {

169+ val title = when (val s = part.state) {

170+ is ToolRunning -> s.title

171+ is ToolCompleted -> s.title

172+ else -> null

173+ }

174+ val detail = when (val s = part.state) {

175+ is ToolCompleted -> s.output?.takeIf { it.isNotBlank() }?.let { truncateOutput(it) }

176+ is ToolError -> s.error?.takeIf { it.isNotBlank() }?.let { "Error: ${truncateOutput(it)}" }

177+ else -> null

178+ }

179+ val status = when (part.state) {

180+ is ToolCompleted -> null

181+ is ToolError -> " — error"

182+ is ToolRunning -> " — running"

183+ else -> null

184+ }

185+ val head = "**${part.tool}**${status ?: ""}"

186+ val titleLine = title?.takeIf { it.isNotBlank() }?.let { escapeMarkdown(it) }

187+ return buildList {

188+ add("> $head")

189+ if (titleLine != null) add("> $titleLine")

190+ // Prefix every detail line with "> " so the fenced code block stays inside the

191+ // blockquote — otherwise lines after the first fall out of the quote.

192+ if (detail != null) {

193+ val quoted = detail.lines().joinToString("\n") { "> $it" }

194+ // Use a fence longer than the longest backtick run in the content, so tool output

195+ // that itself contains a ``` sequence (shell output echoing markdown, etc.) can't

196+ // prematurely close the block and make the rest of the transcript render broken.

197+ val fence = "`".repeat(maxOf(3, longestBacktickRun(detail) + 1))

198+ add(">\n> $fence\n$quoted\n> $fence")

199+ }

200+ }.joinToString("\n").takeIf { it.isNotBlank() }

201+}

202+

203+/** Length of the longest consecutive run of backticks in [text] (0 if none). */

204+private fun longestBacktickRun(text: String): Int {

205+ var max = 0

206+ var current = 0

207+ for (c in text) {

208+ if (c == '`') {

209+ current++

210+ if (current > max) max = current

211+ } else {

212+ current = 0

213+ }

214+ }

215+ return max

216+}

217+

218+private fun truncateOutput(output: String): String {

219+ if (output.length <= NetworkConfig.exportToolOutputLimitChars) return output

220+ return output.take(NetworkConfig.exportToolOutputLimitChars) + "\n… (truncated)"

221+}

222+

223+/** Escape markdown special characters so user/model text doesn't produce malformed markdown.

224+ * Extends the basic set with [ ] ( ) - + ! so user text containing links, list markers, or

225+ * image syntax doesn't render as live Markdown in the exported transcript. */

226+private fun escapeMarkdown(text: String): String {

227+ if (text.isEmpty()) return text

228+ val sb = StringBuilder(text.length + 16)

229+ for (c in text) {

230+ when (c) {

231+ '\\', '*', '_', '#', '`', '>', '[', ']', '(', ')', '!', '+', '-' -> sb.append('\\')

232+ }

233+ sb.append(c)

234+ }

235+ return sb.toString()

236+}

app/src/main/java/soy/iko/opencode/ui/chat/CostFormat.ktnew file+60

@@ -0,0 +1,60 @@

1+package soy.iko.opencode.ui.chat

2+

3+import soy.iko.opencode.data.model.Tokens

4+

5+// NumberFormat.getNumberInstance performs an expensive ICU locale lookup + object

6+// construction on every call. Reuse a thread-local instance so repeated calls (e.g.

7+// when the message list re-seeds after a reconnect and every visible assistant bubble

8+// recomposes at once) don't each pay that cost. Thread-local because NumberFormat is

9+// not thread-safe.

10+internal val tokenNumberFormat: ThreadLocal<java.text.NumberFormat> = ThreadLocal.withInitial {

11+ java.text.NumberFormat.getNumberInstance(java.util.Locale.US)

12+}

13+

14+internal fun formatTokens(tokens: Tokens, format: String): String {

15+ val nf = tokenNumberFormat.get()!!

16+ return format.format(nf.format(tokens.input), nf.format(tokens.output))

17+}

18+

19+internal fun formatCost(cost: Double, shortFormat: String, longFormat: String): String =

20+ // Locale.US so the formatting is stable regardless of device locale (avoids

21+ // non-ASCII digits or comma decimal separators in a dollar amount). The format

22+ // string itself is localized via strings.xml so the currency symbol can be

23+ // adapted by translators.

24+ if (cost < 0.01) String.format(java.util.Locale.US, longFormat, cost)

25+ else String.format(java.util.Locale.US, shortFormat, cost)

26+

27+/** Assemble the single-line cost/tokens summary for an assistant bubble. Returns null when the

28+ * message isn't complete, when neither cost nor tokens were reported, or when every figure is

29+ * zero (so the bubble doesn't show a meaningless "0 in · 0 out • $0.0000"). Extracted from

30+ * [AssistantBlock] to keep that function's cyclomatic complexity under the detekt threshold.

31+ * Reasoning and cache segments are added only when non-zero. */

32+internal fun buildCostSummary(

33+ isComplete: Boolean,

34+ tokens: Tokens?,

35+ cost: Double?,

36+ tokenFormat: String,

37+ reasoningFormat: String,

38+ cacheReadFormat: String,

39+ cacheWriteFormat: String,

40+ costShort: String,

41+ costLong: String,

42+): String? {

43+ if (!isComplete || (cost == null && tokens == null)) return null

44+ val nf = tokenNumberFormat.get()!!

45+ return buildList {

46+ // Skip an all-zero token count (e.g. a completed message that reported no usage) so

47+ // the bubble doesn't show a meaningless "0 in · 0 out".

48+ tokens?.takeIf { it.input > 0 || it.output > 0 }?.let { add(formatTokens(it, tokenFormat)) }

49+ tokens?.takeIf { it.reasoning > 0 }?.let {

50+ add(reasoningFormat.format(nf.format(it.reasoning)))

51+ }

52+ tokens?.cache?.takeIf { it.read > 0 }?.let {

53+ add(cacheReadFormat.format(nf.format(it.read)))

54+ }

55+ tokens?.cache?.takeIf { it.write > 0 }?.let {

56+ add(cacheWriteFormat.format(nf.format(it.write)))

57+ }

58+ cost?.takeIf { it > 0 }?.let { add(formatCost(it, costShort, costLong)) }

59+ }.takeIf { it.isNotEmpty() }?.joinToString(" • ")

60+}

app/src/main/java/soy/iko/opencode/ui/chat/MessageBubble.ktnew file+1418

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app/src/main/java/soy/iko/opencode/ui/chat/ModelPickerSheet.ktnew file+330

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app/src/main/java/soy/iko/opencode/ui/chat/PermissionDialog.ktnew file+331

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app/src/main/java/soy/iko/opencode/ui/chat/TodoPlan.ktnew file+205

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app/src/main/java/soy/iko/opencode/ui/chat/ViewSourceDialog.ktnew file+76

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app/src/main/java/soy/iko/opencode/ui/components/AppTopBar.ktnew file+82

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app/src/main/java/soy/iko/opencode/ui/components/LargeScreenNavRail.ktnew file+109

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app/src/main/java/soy/iko/opencode/ui/components/MarkdownText.ktnew file+902

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app/src/main/java/soy/iko/opencode/ui/components/MessageBubble.ktdeleted−479

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app/src/main/java/soy/iko/opencode/ui/components/PaletteAction.ktnew file+11

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app/src/main/java/soy/iko/opencode/ui/components/ReducedMotion.ktnew file+131

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app/src/main/java/soy/iko/opencode/ui/components/RelativeTimeUnit.ktnew file+56

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app/src/main/java/soy/iko/opencode/ui/components/RemoteImage.ktnew file+606

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app/src/main/java/soy/iko/opencode/ui/components/SkeletonRow.ktnew file+97

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app/src/main/java/soy/iko/opencode/ui/components/TimeFormat.ktnew file+194

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app/src/main/java/soy/iko/opencode/ui/file/FileBrowserScreen.ktnew file+1043

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app/src/main/java/soy/iko/opencode/ui/file/FileBrowserViewModel.ktnew file+281

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app/src/main/java/soy/iko/opencode/ui/file/FileViewModel.ktnew file+91

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app/src/main/java/soy/iko/opencode/ui/file/FileViewScreen.ktnew file+1323

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app/src/main/java/soy/iko/opencode/ui/file/TwoPaneFileBrowser.ktnew file+117

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app/src/main/java/soy/iko/opencode/ui/mcp/McpScreen.ktnew file+521

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app/src/main/java/soy/iko/opencode/ui/screens/ChatScreen.ktdeleted−590

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app/src/main/java/soy/iko/opencode/ui/screens/ConnectScreen.ktdeleted−222

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app/src/main/java/soy/iko/opencode/ui/screens/SessionsScreen.ktdeleted−402

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app/src/main/java/soy/iko/opencode/ui/search/GlobalSearchScreen.ktnew file+430

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app/src/main/java/soy/iko/opencode/ui/search/GlobalSearchViewModel.ktnew file+369

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app/src/main/java/soy/iko/opencode/ui/server/ServerEditScreen.ktnew file+353

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app/src/main/java/soy/iko/opencode/ui/server/ServerEditViewModel.ktnew file+355

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app/src/main/java/soy/iko/opencode/ui/server/ServerListScreen.ktnew file+710

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app/src/main/java/soy/iko/opencode/ui/server/ServerListViewModel.ktnew file+256

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app/src/main/java/soy/iko/opencode/ui/server/ServerSettingsScreen.ktnew file+428

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app/src/main/java/soy/iko/opencode/ui/server/ServerSettingsViewModel.ktnew file+226

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app/src/main/java/soy/iko/opencode/ui/session/NewSessionDialog.ktnew file+315

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app/src/main/java/soy/iko/opencode/ui/session/SessionListScreen.ktnew file+2064

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app/src/main/java/soy/iko/opencode/ui/session/TwoPaneSessionChat.ktnew file+292

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app/src/main/java/soy/iko/opencode/ui/settings/DiagnosticsScreen.ktnew file+689

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app/src/main/java/soy/iko/opencode/ui/settings/SettingsScreen.ktnew file+1660

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app/src/main/java/soy/iko/opencode/ui/theme/Color.ktdeleted−19

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app/src/main/java/soy/iko/opencode/ui/theme/Theme.kt+179−38

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app/src/main/java/soy/iko/opencode/ui/theme/Type.ktdeleted−15

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app/src/main/java/soy/iko/opencode/ui/theme/Typography.ktnew file+136

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app/src/main/java/soy/iko/opencode/ui/usage/UsageAggregation.ktnew file+152

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app/src/main/java/soy/iko/opencode/ui/usage/UsageScreen.ktnew file+435

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app/src/main/java/soy/iko/opencode/ui/usage/UsageViewModel.ktnew file+161

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app/src/main/java/soy/iko/opencode/util/Contexts.ktnew file+15

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app/src/test/java/soy/iko/opencode/core/ConnectUrlTest.ktdeleted−69

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