git.iko.soy/opencode-android

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.github/workflows/build.yml+28−12

since splitsnapshots

unifiedsplit

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

12 cancel-in-progress: true

12 cancel-in-progress: true

13

13

14jobs:

14jobs:

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−

26 build:

15 build:

27− name: Android app

28 runs-on: ubuntu-latest

16 runs-on: ubuntu-latest

29

17

30 steps:

18 steps:

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

42 - name: Run unit tests

30 - name: Run unit tests

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

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

44

32

33+ - name: Static analysis (detekt)

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

35+

45 - name: Lint

36 - name: Lint

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

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

47

38

48 - name: Build debug APK

39 - name: Build debug APK

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

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

50

41

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+

51 - name: Upload debug APK

57 - name: Upload debug APK

52 uses: actions/upload-artifact@v4

58 uses: actions/upload-artifact@v4

53 with:

59 with:

54 name: opencode-debug.apk

60 name: opencode-debug.apk

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

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

56 if-no-files-found: error

62 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 @@

1name: Release

1name: Release

2

2

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

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

4−#

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

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

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

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

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

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.

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

18on:

8on:

19 push:

9 push:

20 branches: [master]

10 branches: [master]

21− tags: ["v*"]

22− workflow_dispatch:

23

11

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

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

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

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.

26concurrency:

15concurrency:

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

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

28 cancel-in-progress: false

17 cancel-in-progress: false

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

31 release:

20 release:

32 runs-on: ubuntu-latest

21 runs-on: ubuntu-latest

33 permissions:

22 permissions:

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

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

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

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

36− attestations: write # publish the attestation record

25+ attestations: write # required to 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 }}

42 steps:

26 steps:

43 - uses: actions/checkout@v4

27 - uses: actions/checkout@v4

44 with:

28 with:

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

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

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

47 fetch-depth: 0

31 fetch-depth: 0

48

32

49− - name: Compute version

33+ - name: Compute version from commit date

50 id: version

34 id: version

51 run: |

35 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)"

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

57− TAG="v${VERSION}"

58− fi

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

60− {

61− echo "version=$VERSION"

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

62− echo "tag=$TAG"

38+ echo "Version: $VERSION"

63− echo "code=$CODE"

64− } >> "$GITHUB_OUTPUT"

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

66

39

67 - uses: actions/setup-java@v4

40 - uses: actions/setup-java@v4

68 with:

41 with:

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

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

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

75

48

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

49 # 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.

78 - name: Decode signing keystore

53 - name: Decode signing keystore

79 if: env.OPENCODE_STORE_BASE64 != ''

54 if: env.OPENCODE_STORE_BASE64 != ''

55+ env:

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

80 run: |

57 run: |

81 STORE_FILE="$RUNNER_TEMP/release.keystore"

58 STORE_FILE="$RUNNER_TEMP/release.keystore"

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

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

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

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

84

61

85 - name: Build release APK

62 - name: Build release APK

86− run: |

63+ env:

87− ./gradlew assembleRelease \

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 }}

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

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

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

90− --no-daemon

91

69

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.

93 - name: Stage APK

72 - name: Stage APK

94 run: |

73 run: |

95 mkdir -p staging

74 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)"

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

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

98

77

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

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

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

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.

101 - name: Attest build provenance

84 - name: Attest build provenance

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

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

103 with:

86 with:

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

106 - name: Create release

89 - name: Create release

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

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

108 with:

91 with:

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

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

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

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

111 make_latest: true

94 make_latest: true

112 generate_release_notes: true

95 generate_release_notes: true

.gitignore−19

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

1# Gradle

1# Gradle

2.gradle/

2.gradle/

3build/

3build/

4−*.apk

5−*.aab

6

4

7# Kotlin

5# Kotlin

8.kotlin/

6.kotlin/

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

31

29

32# Nix

30# Nix

33result

31result

34−result-*

35.direnv/

32.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 @@

1# opencode-android

1# opencode-android

2

2

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

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

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

5−and **Jetpack Compose**.

6

4

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

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

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

9−over the server's SSE event stream.

10

6

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

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

12

8

13−## Architecture

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

14−

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

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

69

11

70−### Dev shell

12+### 1. Start the server

71

13

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

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

73

15

74−```sh

16+```bash

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

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

76```

18```

77

19

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

20+Useful flags:

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

80

21

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) |

82

28

83−```sh

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

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−```

93

30

94−### Run against a server

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

95

32

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:

97

34

98−```sh

35+```bash

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

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

100```

37```

101

38

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

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

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

40+app's add-server dialog.

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

105

41

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

42+### 3. Connect from the app

107

43

108−## The opencode API this client speaks

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

109

45

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

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

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.

122

47

123−## Continuous integration & releases

48+```bash

124−

49+adb reverse tcp:4096 tcp:4096

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− ```

50+```

135

51

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

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

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

138

53

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

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

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

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

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.

143

56

144−## Notes & limitations

57+## Architecture

145

58

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

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

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

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

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

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

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

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+```

150

84

151−## License

85+## Install & run

152

86

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 @@

1plugins {

1plugins {

2 alias(libs.plugins.android.application)

2 alias(libs.plugins.android.application)

3− alias(libs.plugins.kotlin.android)

4− alias(libs.plugins.kotlin.compose)

5 alias(libs.plugins.kotlin.serialization)

3 alias(libs.plugins.kotlin.serialization)

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

5+ alias(libs.plugins.detekt)

6}

6}

7

7

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

8+/**

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

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

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

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

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

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)

12

18

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

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

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

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

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

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

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

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

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

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

19

23

20android {

24android {

21 namespace = "soy.iko.opencode"

25 namespace = "soy.iko.opencode"

22− compileSdk = 35

26+ compileSdk = 37

27+ buildToolsVersion = "37.0.0"

23

28

24 defaultConfig {

29 defaultConfig {

25 applicationId = "soy.iko.opencode"

30 applicationId = "soy.iko.opencode"

26 minSdk = 26

31 minSdk = 26

27− targetSdk = 35

32+ targetSdk = 37

28− versionCode = appVersionCode

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

29− versionName = appVersionName

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

30−

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"

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

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

32 }

40 }

33

41

34− signingConfigs {

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

35− if (hasReleaseKeystore) {

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 ->

36− create("release") {

47+ signingConfigs.create("release") {

37− storeFile = file(releaseStorePath!!)

48+ storeFile = file(path)

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

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

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

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

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

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

41− }

42 }

52 }

43 }

53 }

44

54

45 buildTypes {

55 buildTypes {

46 release {

56 release {

47 isMinifyEnabled = true

57 isMinifyEnabled = true

58+ isShrinkResources = true

48 proguardFiles(

59 proguardFiles(

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

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

50 "proguard-rules.pro",

61 "proguard-rules.pro",

51 )

62 )

52− signingConfig = if (hasReleaseKeystore) {

63+ releaseSigning?.let { signingConfig = it }

53− signingConfigs.getByName("release")

54− } else {

55− signingConfigs.getByName("debug")

56− }

57 }

64 }

58 }

65 }

59

66

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

62 targetCompatibility = JavaVersion.VERSION_17

69 targetCompatibility = JavaVersion.VERSION_17

63 }

70 }

64

71

65− kotlinOptions {

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

66− jvmTarget = "17"

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+ }

67 }

78 }

68

79

69 buildFeatures {

80 buildFeatures {

70 compose = true

81 compose = true

71 }

82 }

72

83

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+

73 packaging {

106 packaging {

74 resources {

107 resources {

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

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

76 }

109 }

77 }

110 }

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+ }

78}

121}

79

122

80dependencies {

123dependencies {

81 implementation(libs.androidx.core.ktx)

124 implementation(libs.androidx.core.ktx)

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

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

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

126+ implementation(libs.androidx.window)

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

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

86 implementation(libs.androidx.activity.compose)

127 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)

87

131

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

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

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

133+ implementation(libs.compose.ui)

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

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

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

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

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

136+ implementation(libs.compose.material3)

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

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

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

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)

95

145

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

97 implementation(libs.kotlinx.serialization.json)

146 implementation(libs.kotlinx.serialization.json)

98− implementation(libs.okhttp)

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

148+

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

99− implementation(libs.okhttp.sse)

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)

100

156

101 testImplementation(libs.junit)

157 testImplementation(libs.junit)

102 testImplementation(libs.kotlinx.coroutines.test)

158 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")

103}

173}

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.

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

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

2−-keepattributes *Annotation*, InnerClasses

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

3-dontnote kotlinx.serialization.**

4-dontnote kotlinx.serialization.**

4−

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

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

6+ *** Companion;

7+}

6−-keepclasseswithmembers class * {

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

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

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;

8}

15}

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.

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

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

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

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.**

11

48

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

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

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

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

14−-dontwarn org.conscrypt.**

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

15−-dontwarn org.bouncycastle.**

16−-dontwarn org.openjsse.**

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 @@

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

1<?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">

3

4

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

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

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

6 <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" />

6

14

7 <application

15 <application

16+ android:name=".OpencodeApp"

8− android:allowBackup="true"

17+ android:allowBackup="false"

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

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

19+ android:fullBackupContent="false"

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

10 android:label="@string/app_name"

21 android:label="@string/app_name"

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

11 android:supportsRtl="true"

23 android:supportsRtl="true"

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

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

13− android:usesCleartextTraffic="true">

14

25

15 <activity

26 <activity

16 android:name=".MainActivity"

27 android:name=".MainActivity"

17 android:exported="true"

28 android:exported="true"

29+ android:launchMode="singleTop"

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

31+ android:enableOnBackInvokedCallback="true"

18 android:windowSoftInputMode="adjustResize"

32 android:windowSoftInputMode="adjustResize"

33+ tools:targetApi="33"

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

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

20 <intent-filter>

35 <intent-filter>

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

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

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

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

23 </intent-filter>

38 </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>

24 </activity>

75 </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>

25 </application>

133 </application>

134+

26</manifest>

135</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+434−15

@@ -1,31 +1,450 @@

1package soy.iko.opencode

1package soy.iko.opencode

2

2

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

3import android.os.Bundle

8import android.os.Bundle

4−import androidx.activity.ComponentActivity

9+import android.view.WindowManager

5−import androidx.activity.SystemBarStyle

10+import androidx.core.content.IntentCompat

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

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

6import androidx.activity.compose.setContent

13import androidx.activity.compose.setContent

7import androidx.activity.enableEdgeToEdge

14import 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

8import androidx.compose.runtime.getValue

21import 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

9import androidx.lifecycle.compose.collectAsStateWithLifecycle

33import androidx.lifecycle.compose.collectAsStateWithLifecycle

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

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

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

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

12import soy.iko.opencode.ui.theme.OpencodeTheme

39import soy.iko.opencode.ui.theme.OpencodeTheme

13

40

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.

14−class MainActivity : ComponentActivity() {

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+ private var showInvalidLinkToast = false

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

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

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

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

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

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

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

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

65+ private var showCrashPrompt by mutableStateOf(false)

66+ private var showNotifRationale by mutableStateOf(false)

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

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

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

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

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

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

73+ private var notificationPermissionRequested = false

74+

15 override fun onCreate(savedInstanceState: Bundle?) {

75 override fun onCreate(savedInstanceState: Bundle?) {

16− enableEdgeToEdge(

76+ val splash = installSplashScreen()

17− statusBarStyle = SystemBarStyle.auto(

18− lightScrim = 0xFF0F1115.toInt(),

19− darkScrim = 0xFF0F1115.toInt(),

20− ),

21− )

22 super.onCreate(savedInstanceState)

77 super.onCreate(savedInstanceState)

78+ enableEdgeToEdge()

79+ savedInstanceState?.let {

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

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

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

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

84+ }

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

86+ handleIntent(intent)

87+ if (savedInstanceState == null) {

88+ maybeRequestNotificationPermission()

89+ } else {

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

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

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

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

94+ }

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

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

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

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

99+ var settingsLoaded = false

100+ splash.setKeepOnScreenCondition { !settingsLoaded }

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

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

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

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

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

106+ splash.setOnExitAnimationListener { splashScreenViewProvider ->

107+ val view = splashScreenViewProvider.view

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

109+ duration = 180

110+ fillAfter = true

111+ }

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

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

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

115+ splashScreenViewProvider.remove()

116+ }

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

118+ })

119+ view.startAnimation(fade)

120+ }

23 setContent {

121 setContent {

24− OpencodeTheme {

122+ val theme by remember(container) {

25− val vm: CoreViewModel = viewModel()

123+ container.settingsStore.themeMode

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

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

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

125+ }.collectAsStateWithLifecycle(initialValue = null)

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

127+ val appLockReLockSeconds by container.settingsStore.appLockReLockSeconds

128+ .collectAsStateWithLifecycle(initialValue = SettingsStore.DEFAULT_APP_LOCK_RELOCK_SECONDS)

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

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

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

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

133+ LaunchedEffect(appLock) {

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

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

136+ }

137+ val themePair = theme

138+ val locked = appLock

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

140+ val (themeMode, dynamicColor) = themePair

141+ val amoled = themeMode == ThemeMode.AMOLED

142+ val dark = when (themeMode) {

143+ ThemeMode.SYSTEM -> isSystemInDarkTheme()

144+ ThemeMode.LIGHT -> false

145+ ThemeMode.DARK -> true

146+ ThemeMode.AMOLED -> true

147+ }

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

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

150+ OpencodeAppUi(container = container)

151+ }

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

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

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

155+ if (showCrashPrompt) {

156+ AlertDialog(

157+ onDismissRequest = { showCrashPrompt = false },

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

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

160+ confirmButton = {

161+ TextButton(onClick = {

162+ showCrashPrompt = false

163+ container.requestDiagnostics()

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

165+ },

166+ dismissButton = {

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

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

169+ }

170+ },

171+ )

172+ }

173+ if (showNotifRationale) {

174+ AlertDialog(

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

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

177+ onDismissRequest = { },

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

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

180+ confirmButton = {

181+ TextButton(onClick = {

182+ showNotifRationale = false

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

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

185+ },

186+ dismissButton = {

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

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

189+ }

190+ },

191+ )

192+ }

193+ }

194+ }

195+ }

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

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

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

199+ maybeShowCrashPrompt()

200+ }

201+

202+ private fun maybeShowCrashPrompt() {

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

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

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

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

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

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

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

210+ lifecycleScope.launch {

211+ val hasUnacknowledged = withContext(Dispatchers.IO) {

212+ crashLogger.hasUnacknowledgedCrash()

28 }

213 }

214+ if (hasUnacknowledged) {

215+ crashLogger.acknowledgeCrashes()

216+ showCrashPrompt = true

217+ }

218+ }

219+ }

220+

221+ override fun onNewIntent(intent: Intent) {

222+ super.onNewIntent(intent)

223+ setIntent(intent)

224+ shareIntentHandled = false

225+ openSessionHandled = false

226+ newSessionHandled = false

227+ openFileHandled = false

228+ handleIntent(intent)

229+ }

230+

231+ // Track real foreground state so background notifications (permission requests,

232+ // completions, errors) still fire for a session the user "has open" but has walked

233+ // away from — the chat screen isn't disposed when the phone is locked, so

234+ // container.currentSession stays set and can't be used as a foreground signal.

235+ override fun onStart() {

236+ super.onStart()

237+ (application as OpencodeApp).container.setForeground(true)

238+ }

239+

240+ override fun onStop() {

241+ super.onStop()

242+ (application as OpencodeApp).container.setForeground(false)

243+ }

244+

245+ override fun onResume() {

246+ super.onResume()

247+ // Re-check on resume: an Activity recreated by a config change not in configChanges

248+ // (e.g. locale) has savedInstanceState != null, so onCreate skipped the request. This

249+ // ensures the user is prompted once per Activity instance when still ungranted rather

250+ // than silently losing all notifications.

251+ maybeRequestNotificationPermission()

252+ // Surface a rejected deep link once, so a malformed opencode:// link doesn't appear

253+ // to be silently ignored. Cleared after firing so a rotation doesn't re-toast.

254+ if (showInvalidLinkToast) {

255+ showInvalidLinkToast = false

256+ android.widget.Toast.makeText(this, R.string.deep_link_invalid, android.widget.Toast.LENGTH_SHORT).show()

29 }

257 }

30 }

258 }

259+

260+ /** Capture text shared from another app so it can be prefilled into a session draft,

261+ * and session ids from notification taps / deep links so we can open them. */

262+ private fun handleIntent(intent: Intent?) {

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

264+ val action = intent?.action

265+ // "New session" from a launcher shortcut or the quick-settings tile. Guarded so a

266+ // process-death restore (which re-delivers the intent) doesn't spawn a second session.

267+ if (action == ACTION_NEW_SESSION && !newSessionHandled) {

268+ container.requestNewSession()

269+ newSessionHandled = true

270+ }

271+ if ((action == Intent.ACTION_SEND || action == Intent.ACTION_SEND_MULTIPLE) && !shareIntentHandled) {

272+ val type = intent.type.orEmpty()

273+ if (action == Intent.ACTION_SEND && type.startsWith("image/")) {

274+ // A single shared image → stage as an attachment in the next opened session.

275+ val uri = IntentCompat.getParcelableExtra(intent, Intent.EXTRA_STREAM, Uri::class.java)

276+ if (uri != null) {

277+ container.setPendingSharedMedia(listOf(uri.toString()))

278+ shareIntentHandled = true

279+ }

280+ } else if (action == Intent.ACTION_SEND_MULTIPLE && type.startsWith("image/")) {

281+ val uris = IntentCompat.getParcelableArrayListExtra(intent, Intent.EXTRA_STREAM, Uri::class.java)

282+ ?.take(NetworkConfig.maxAttachments)

283+ .orEmpty()

284+ if (uris.isNotEmpty()) {

285+ container.setPendingSharedMedia(uris.map { it.toString() })

286+ shareIntentHandled = true

287+ }

288+ } else if (action == Intent.ACTION_SEND) {

289+ // A non-image file (e.g. a PDF or text file shared from another app): stage it

290+ // as an attachment too, so the user can send it to the agent. The attachment

291+ // pipeline handles non-image mimes with a generic file icon. Falls back to

292+ // EXTRA_TEXT when no stream is present (a plain text share).

293+ val uri = IntentCompat.getParcelableExtra(intent, Intent.EXTRA_STREAM, Uri::class.java)

294+ if (uri != null) {

295+ container.setPendingSharedMedia(listOf(uri.toString()))

296+ shareIntentHandled = true

297+ } else {

298+ val text = intent.getStringExtra(Intent.EXTRA_TEXT)

299+ ?.takeIf { it.isNotBlank() }

300+ ?.take(10_000) // cap to prevent unbounded memory usage from malicious shares

301+ if (text != null) {

302+ container.setPendingShare(text)

303+ shareIntentHandled = true

304+ }

305+ }

306+ } else {

307+ val text = intent.getStringExtra(Intent.EXTRA_TEXT)

308+ ?.takeIf { it.isNotBlank() }

309+ ?.take(10_000) // cap to prevent unbounded memory usage from malicious shares

310+ if (text != null) {

311+ container.setPendingShare(text)

312+ shareIntentHandled = true

313+ }

314+ }

315+ }

316+ // Deep links under the opencode:// scheme. The manifest exposes several hosts:

317+ // session/{id} → open (and switch to) that conversation

318+ // file/{path} → open the file viewer at that workspace path

319+ // new → start a fresh session

320+ // The file path is percent-encoded by the link source; decode it here and validate the

321+ // segment to keep path-traversal out of the REST path (mirroring the session guard).

322+ val data = intent?.takeIf { it.action == Intent.ACTION_VIEW }?.data

323+ when (data?.host) {

324+ "session" -> {

325+ val seg = data.lastPathSegment

326+ if (!openSessionHandled) {

327+ seg?.takeIf { it.isNotBlank() && it.matches(VALID_SESSION_ID) }?.let {

328+ val profileId = intent.getStringExtra(NotificationActionReceiver.EXTRA_PROFILE_ID)

329+ ?.takeIf { it.isNotBlank() }

330+ container.requestOpenSession(it, profileId)

331+ openSessionHandled = true

332+ } ?: run {

333+ // The link carried a session host but no valid id (or a blank/traversal

334+ // attempt). Surface a toast so the user knows the link was rejected,

335+ // rather than silently no-op'ing (which reads as "the app did nothing").

336+ if (!seg.isNullOrBlank()) showInvalidLinkToast = true

337+ // Mark the link handled even on rejection, so a process-death-and-restore

338+ // (which re-delivers the same intent) doesn't re-fire the toast on every

339+ // restore — the rejection is final, not a transient state to retry.

340+ openSessionHandled = true

341+ }

342+ }

343+ }

344+ "file" -> {

345+ // Reconstruct the path from the path segments after "file", preserving internal

346+ // slashes. Decoded + validated against traversal/control characters.

347+ val rawPath = data.path?.removePrefix("/file/")?.let { android.net.Uri.decode(it) }

348+ if (!openFileHandled) {

349+ rawPath?.takeIf { isValidFilePath(it) }

350+ ?.let { container.requestOpenFile(it); openFileHandled = true } ?: run {

351+ if (!rawPath.isNullOrBlank()) showInvalidLinkToast = true

352+ // Mark handled on rejection too, mirroring the session branch —

353+ // otherwise a process-death restore re-fires the invalid-link toast.

354+ openFileHandled = true

355+ }

356+ }

357+ }

358+ "new" -> {

359+ if (!newSessionHandled) {

360+ container.requestNewSession()

361+ newSessionHandled = true

362+ }

363+ }

364+ }

365+ // Fall back to the EXTRA_SESSION_ID extra (notifications / widget) when no deep link

366+ // was present at all. A deep link that matched a host but failed validation (e.g. a

367+ // malformed session id) does NOT fall through to the extra: the intent's primary

368+ // routing signal was the URI, and the extra may carry a different (valid) id that

369+ // would silently open the wrong session. Only when data?.host is null (a pure widget

370+ // / notification intent with no URI) does the extra carry the routing intent.

371+ if (data?.host == null && !openSessionHandled) {

372+ intent?.getStringExtra(EXTRA_SESSION_ID)?.takeIf { it.isNotBlank() && it.matches(VALID_SESSION_ID) }?.let {

373+ val profileId = intent.getStringExtra(NotificationActionReceiver.EXTRA_PROFILE_ID)

374+ ?.takeIf { it.isNotBlank() }

375+ container.requestOpenSession(it, profileId)

376+ openSessionHandled = true

377+ }

378+ }

379+ }

380+

381+ companion object {

382+ /** Intent extra carrying a session id to open (notifications / deep links / widget). */

383+ const val EXTRA_SESSION_ID = "soy.iko.opencode.extra.SESSION_ID"

384+

385+ /** Action for the "New session" launcher shortcut and quick-settings tile. */

386+ const val ACTION_NEW_SESSION = "soy.iko.opencode.action.NEW_SESSION"

387+

388+ /** Session ids are alphanumeric with dashes/underscores. Reject path traversal. */

389+ private val VALID_SESSION_ID = Regex("[A-Za-z0-9_-]+")

390+

391+ /** A file path must not carry traversal segments or control characters. Looser than a

392+ * positive allowlist: real workspace paths commonly contain `~`, `:`, `+`, `=`, `,`,

393+ * parentheses, and non-ASCII unicode, all of which a tight `[A-Za-z0-9_\\-./ ]+`

394+ * regex would reject. The server validates the path against the workspace root, so

395+ * here we only reject what's unambiguously hostile (traversal) or non-printable. */

396+ private fun isValidFilePath(path: String): Boolean {

397+ if (path.isBlank()) return false

398+ if (path.contains("..")) return false

399+ if (path.any { it.isISOControl() }) return false

400+ return true

401+ }

402+

403+ private const val KEY_SHARE_HANDLED = "shareIntentHandled"

404+ private const val KEY_OPEN_SESSION_HANDLED = "openSessionHandled"

405+ private const val KEY_NEW_SESSION_HANDLED = "newSessionHandled"

406+ private const val KEY_OPEN_FILE_HANDLED = "openFileHandled"

407+ private const val KEY_NOTIF_PERM_REQUESTED = "notificationPermissionRequested"

408+ }

409+

410+ override fun onSaveInstanceState(outState: Bundle) {

411+ super.onSaveInstanceState(outState)

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

413+ // Persist each intent-handled flag as "consumed", not merely "dispatched". The pending

414+ // signals live only in the in-memory AppContainer, which is recreated EMPTY on process

415+ // death. Persisting a plain "dispatched = true" would, after a kill *before* the UI

416+ // consumed the signal, restore the flag as true so the fresh container never receives it —

417+ // the deep-linked / new / shared session would silently never open. So AND each flag with

418+ // "the container no longer holds the signal": still-pending at save time → persist false so

419+ // the re-delivered intent re-dispatches it into the new container on restore; already

420+ // consumed → persist true so we don't re-open it unexpectedly on every later restore.

421+ val openConsumed = container.pendingOpenSession.value == null

422+ val newConsumed = container.pendingNewSession.value == 0

423+ val shareConsumed = container.pendingShare.value == null && container.pendingSharedMedia.value.isEmpty()

424+ val fileConsumed = container.pendingOpenFile.value == null

425+ outState.putBoolean(KEY_SHARE_HANDLED, shareIntentHandled && shareConsumed)

426+ outState.putBoolean(KEY_OPEN_SESSION_HANDLED, openSessionHandled && openConsumed)

427+ outState.putBoolean(KEY_NEW_SESSION_HANDLED, newSessionHandled && newConsumed)

428+ outState.putBoolean(KEY_OPEN_FILE_HANDLED, openFileHandled && fileConsumed)

429+ outState.putBoolean(KEY_NOTIF_PERM_REQUESTED, notificationPermissionRequested)

430+ }

431+

432+ /** Ask for POST_NOTIFICATIONS on Android 13+ so run/completion notifications show.

433+ * Idempotent per Activity instance via [notificationPermissionRequested].

434+ * Shows a rationale dialog first (explaining what the user gains) before the system

435+ * permission prompt, so a user who denies understands what they're missing. */

436+ private fun maybeRequestNotificationPermission() {

437+ if (notificationPermissionRequested) return

438+ if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) return

439+ val granted = ContextCompat.checkSelfPermission(this, Manifest.permission.POST_NOTIFICATIONS) ==

440+ PackageManager.PERMISSION_GRANTED

441+ if (!granted) {

442+ notificationPermissionRequested = true

443+ showNotificationRationaleDialog()

444+ }

445+ }

446+

447+ private fun showNotificationRationaleDialog() {

448+ showNotifRationale = true

449+ }

31}

450}

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)

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)

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+353

@@ -0,0 +1,353 @@

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+ continue

316+ } else if (isActive) {

317+ Log.w("EventStream", "SSE stream error, will retry: ${safeExceptionSummary(e)}")

318+ }

319+ }

320+ _state.value = ConnectionState.Disconnected

321+ if (!isActive) break

322+ // Wait for the backoff, but allow a reconnect signal to cut it short. When

323+ // readSseEvents consumed a triggerReconnect() signal to drop an active read,

324+ // the signal is already spent so the select below can't receive it — pass a

325+ // zero backoff in that case so the reconnect is immediate (the whole point of

326+ // triggerReconnect: network handoff, manual refresh, ...).

327+ val signaled = waitForBackoffOrSignal(reconnectConsumedDuringRead, backoffMs)

328+ backoffMs = if (signaled) initialBackoffMs else (backoffMs * 2).coerceAtMost(maxBackoffMs)

329+ }

330+ }

331+

332+ /** Suspend for the backoff unless [reconnectConsumedDuringRead] (immediate) or a new

333+ * [triggerReconnect] arrives during the wait. Returns true when the reconnect should

334+ * skip the backoff ramp (signal-driven), false when the full backoff elapsed. */

335+ private suspend fun waitForBackoffOrSignal(

336+ reconnectConsumedDuringRead: Boolean,

337+ backoffMs: Long,

338+ ): Boolean {

339+ if (reconnectConsumedDuringRead) return true

340+ var signaled = false

341+ val jitter = ((backoffMs * NetworkConfig.retryJitterFactor) * (Random.nextDouble() * 2 - 1)).toLong()

342+ // Floor the wait at half the initial backoff: symmetric jitter can otherwise pull a

343+ // small backoff down to 0ms, producing a sub-second reconnect storm right after a

344+ // triggerReconnect reset on a connect-RST loop. A non-zero floor preserves the

345+ // purpose of backoff (spacing retries) while still allowing jitter to shorten it.

346+ val minWait = (initialBackoffMs / 2).coerceAtLeast(1L)

347+ select {

348+ reconnectSignal.onReceive { signaled = true }

349+ onTimeout((backoffMs + jitter).coerceAtLeast(minWait)) { /* normal backoff elapsed */ }

350+ }

351+ return signaled

352+ }

353+}

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+442

@@ -0,0 +1,442 @@

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+ /** Grace period before a deferred session delete actually fires, during which an

116+ * Undo snackbar lets the user cancel it. */

117+ const val undoDeleteDelayMs = 5_000L

118+

119+ /** Grace period before a deferred server-profile delete actually fires, during which

120+ * an Undo snackbar lets the user cancel it. Same UX rationale as [undoDeleteDelayMs]. */

121+ const val undoServerDeleteDelayMs = 5_000L

122+

123+ /** Grace period before a deferred crash-report delete actually fires, during which

124+ * an Undo snackbar lets the user cancel it. */

125+ const val undoReportDeleteDelayMs = 5_000L

126+

127+ // --- In-memory message store (SessionRepository.MessageStore) ---

128+

129+ /** Max messages to keep in memory per observed session; oldest are evicted beyond this. */

130+ const val maxInMemoryMessages = 500

131+

132+ // --- File viewer (FileViewScreen) ---

133+

134+ /** Cap on how many lines the raw viewer renders and searches. A multi-megabyte file is

135+ * split once (not twice) into this many lines at most, so it can't hold two full line

136+ * lists in memory or stall the LazyColumn; beyond the cap a truncation banner is shown. */

137+ const val maxRenderedFileLines = 5000

138+

139+ // --- File browser (FileBrowserViewModel) ---

140+

141+ /** Debounce delay before firing a file-search request after the user stops typing. */

142+ const val fileSearchDebounceMs = 250L

143+

144+ /** Debounce delay before re-running the in-conversation message search after the user

145+ * stops typing. The search walks every part of every message (including stringifying

146+ * tool state), so debouncing avoids jank on long conversations. The filter itself runs

147+ * off the main thread; this delay coalesces rapid keystrokes. */

148+ const val chatSearchDebounceMs = 200L

149+

150+ // --- Attachments (chat composer) ---

151+

152+ /** Max size of a single attachment (image/file) before it's rejected. Base64 inflates

153+ * the payload ~33%, and the whole prompt body is held in memory, so cap generously but

154+ * finitely to avoid OOM / oversized requests. */

155+ const val maxAttachmentBytes = 10L * 1024 * 1024

156+

157+ /** Max number of attachments staged for one prompt, to bound memory and request size. */

158+ const val maxAttachments = 8

159+

160+ /** Max cumulative size of all attachments staged for one prompt. The per-file

161+ * [maxAttachmentBytes] cap alone allows [maxAttachments] max-size files (~80MB raw,

162+ * ~106MB as base64) to pile up in memory and be re-serialized on every add/remove and

163+ * again when the request body is built — a realistic OOM. This bounds the whole set. */

164+ const val maxTotalAttachmentBytes = 25L * 1024 * 1024

165+

166+ // --- StateFlow sharing (WhileSubscribed) ---

167+

168+ /** Grace period before a cold StateFlow is stopped after its last subscriber leaves. */

169+ const val stateFlowSubscriptionTimeoutMs = 5_000L

170+

171+ /** Maximum time a notification action BroadcastReceiver may hold its goAsync()

172+ * PendingResult open. The system ANRs a receiver that doesn't call finish() within

173+ * ~10s, so this must stay below that; a slow permission-respond retry (withRetry

174+ * exponential backoff up to ~90s) or a blocked outbox enqueue could otherwise blow

175+ * past the window. The watchdog finishes the PendingResult at this deadline so the

176+ * receiver never ANRs; the underlying network call keeps running on the app scope. */

177+ const val notificationReceiverTimeoutMs = 8_000L

178+

179+ // --- Draft persistence (ChatViewModel) ---

180+

181+ /** Debounce delay before persisting a draft to disk after the user stops typing. */

182+ const val draftDebounceMs = 500L

183+

184+ /** Maximum characters allowed in the chat input field. A generous cap that prevents

185+ * a huge paste from stalling the UI (the field would otherwise buffer and lay out

186+ * an unbounded string) while leaving plenty of room for long prompts. */

187+ const val maxDraftLengthChars = 32_000

188+

189+ /** Show the "remaining characters" supportingText under the chat input once the

190+ * draft length crosses this fraction of [maxDraftLengthChars], so the cap is

191+ * visible before it silently kicks in but doesn't clutter a normal short prompt. */

192+ const val draftCountdownThresholdFraction = 0.8f

193+

194+ /** Maximum characters allowed in a session title (rename dialog). Prevents the

195+ * server from rejecting an overly long title and keeps list rows readable. */

196+ const val maxSessionTitleChars = 200

197+

198+ // --- Profile store (ServerEditViewModel) ---

199+

200+ /** Timeout for loading a profile from DataStore before giving up. */

201+ const val profileLoadTimeoutMs = 5_000L

202+

203+ /** Timeout for a credential test (probe) before giving up, so a hung/unresponsive server

204+ * doesn't leave the "Testing…" spinner spinning indefinitely. */

205+ const val testCredentialsTimeoutMs = 15_000L

206+

207+ // --- SSE stream (EventStreamClient, AppContainer) ---

208+

209+ /** Delay before retrying the message-activity observer after a failure. */

210+ const val observerRetryDelayMs = 5_000L

211+ /** Debounce before the run foreground-service is started/stopped in response to

212+ * run-activity changes. A run that starts and then fails/idles almost immediately

213+ * would otherwise dispatch startForegroundService() then stopService() back-to-back;

214+ * if the stop wins the race before startForeground() runs, Android raises the

215+ * "did not then call startForeground()" crash. Debouncing collapses that window.

216+ * Also serves as a minimum-run-duration gate: a run shorter than this (a quick abort,

217+ * a one-token reply) clears [anyRunActive] before the FGS ever posts, so the shade

218+ * stays clean of non-dismissable notifications for trivially short runs. The Doze-

219+ * resilience benefit only matters for long runs, so a few seconds of gate preserves

220+ * the core benefit. */

221+ const val runForegroundDebounceMs = 3_000L

222+

223+ // --- Markdown rendering (MarkdownText) ---

224+

225+ /** Throttle delay to coalesce streaming tokens into one re-parse. The markdown

226+ * library re-parses the full AST on every content change, so during a long streaming

227+ * response this is O(n²) work. 50ms (~20fps) is smooth for progressively appearing

228+ * text while cutting parse work ~3x versus a per-frame (16ms) throttle. */

229+ const val streamingThrottleMs = 50L

230+

231+ // --- Snackbar one-shot events (ViewModels) ---

232+

233+ /** Buffer capacity for transient error SharedFlows that drive snackbars. */

234+ const val snackbarEventBufferCapacity = 16

235+

236+ /** How long the chat top-bar refresh icon stays in its "refreshing" spinner state

237+ * after a tap, giving immediate feedback that the refresh was triggered even when

238+ * the connection state is already Connected (so the ConnectionBanner doesn't change). */

239+ const val refreshFeedbackMs = 1_200L

240+

241+ // --- UI layout constants ---

242+

243+ /** Minimum window width (dp) for two-pane layout on tablets / unfolded foldables. */

244+ const val twoPaneWidthThresholdDp = 840

245+ /** Maximum width fraction a user message bubble can occupy (keeps it readable). */

246+ const val userBubbleWidthFraction = 0.85f

247+ /** Minimum number of options in a picker sheet (model/agent/command) before its search

248+ * field auto-focuses and raises the keyboard on open. A tiny catalog is faster to scan by

249+ * eye, so popping the keyboard for it is just friction. */

250+ const val pickerSearchAutofocusThreshold = 8

251+

252+ /** Minimum number of saved server profiles before the server list shows its search/filter

253+ * field. A typical user has one or two servers, where scanning by eye beats typing; power

254+ * users juggling many profiles get the filter once it earns its space. */

255+ const val serverListSearchThreshold = 5

256+

257+ /** Minimum number of crash reports before the diagnostics list shows its search field. */

258+ const val diagnosticsSearchThreshold = 8

259+

260+ /** Initial render window for the diagnostics crash-report list — the number of rows

261+ * composed before the user scrolls to reveal more. Bounds composition work on a device

262+ * that has accumulated many crash reports. Grows by [diagnosticsListPageStep] as the

263+ * user nears the bottom. */

264+ const val diagnosticsListInitialPage = 60

265+ /** How many additional crash-report rows to reveal when the render window is exhausted. */

266+ const val diagnosticsListPageStep = 60

267+

268+ /** Minimum number of sessions in the usage report before the per-session list shows its

269+ * filter field. A short history is faster to scan than type into. */

270+ const val usageSessionSearchThreshold = 8

271+

272+ /** Minimum number of sessions before the session list shows its search/filter field.

273+ * Matches the sibling screens' convention: a short list is faster to scan by eye than

274+ * type into, so the field earns its vertical space only once the list grows. */

275+ const val sessionListSearchThreshold = 5

276+ /** Extra bottom content padding (dp) for the chat message list, reserving room for the

277+ * jump-to-latest FAB so it never floats over the last message. */

278+ const val chatListFabInsetDp = 80

279+

280+ /** Extra bottom content padding (dp) for single-pane list screens that host a FAB

281+ * (session list, server list, MCP), reserving room so the FAB never floats over the

282+ * last row. Unified across screens so the inset doesn't drift (the session list

283+ * previously hardcoded 96dp while the chat list used [chatListFabInsetDp]). */

284+ const val listFabInsetDp = 96

285+ /** Left pane weight in the two-pane layout (session list). */

286+ const val twoPaneLeftWeight = 0.38f

287+ /** Right pane weight in the two-pane layout (chat detail). */

288+ const val twoPaneRightWeight = 0.62f

289+

290+ /** Maximum width (dp) for the left (session-list) pane in the two-pane layout. On a wide

291+ * tablet the list pane would otherwise stretch too wide for a readable row density; capping

292+ * it keeps the list compact and gives the chat detail pane the remaining space. */

293+ const val twoPaneLeftMaxWidthDp = 460

294+

295+ /** Minimum window width (dp) at which a NavigationRail is shown alongside the

296+ * two-pane layout for top-level destination discoverability on large screens. Sits below

297+ * [twoPaneWidthThresholdDp] (M3's WindowWidthSizeClass.Medium breakpoint ~600dp) so a

298+ * tablet or landscape phone gets the rail while staying single-pane until 840dp, where the

299+ * two-pane master/detail split takes over. */

300+ const val navigationRailThresholdDp = 600

301+

302+ /** Maximum width (dp) for the chat message list on large screens. On a tablet or

303+ * unfolded foldable, full-width message bubbles stretch edge-to-edge, hurting

304+ * readability — capping and centering the list (like Gmail/Telegram on tablets)

305+ * keeps line lengths comfortable. Applied only above [twoPaneWidthThresholdDp]. */

306+ const val chatContentMaxWidthDp = 800

307+

308+ /** Maximum width (dp) for a single-pane list/form screen on large screens (Diagnostics,

309+ * MCP, Usage, Global Search, File Browser). Mirrors [chatContentMaxWidthDp]'s rationale

310+ * at a tighter width suited to dense list rows and form fields. Settings and ServerEdit

311+ * use 600dp directly; this constant centralizes the same value for the screens that

312+ * previously stretched edge-to-edge on tablets. */

313+ const val listContentMaxWidthDp = 600

314+

315+ /** Maximum width (dp) for the full-screen chat composer dialog on large screens, so

316+ * the editor doesn't stretch edge-to-edge on a tablet (matching [chatContentMaxWidthDp]'s

317+ * readability rationale for the message list). */

318+ const val composerDialogMaxWidthDp = 800

319+

320+ /** Maximum height (dp) for a modal bottom sheet's list area. Resolved against the screen

321+ * (not the partial sheet) so a sheet that starts fully expanded shows a predictable list

322+ * height regardless of the sheet's drag position. */

323+ const val pickerSheetMaxHeightDp = 560

324+

325+ /** Maximum inline height (dp) for an image attachment in the chat list. A tall image

326+ * caps at this so it doesn't dominate the bubble; tapping opens the fullscreen viewer. */

327+ const val inlineImageMaxHeightDp = 320

328+

329+ /** Minimum inline height (dp) reserved for an image placeholder (loading/error/resolving),

330+ * so the layout doesn't jump when the load completes and the image's intrinsic size is known. */

331+ const val inlineImageMinHeightDp = 120

332+

333+ /** Lines of a code fence rendered before collapsing to a head with a "show more" affordance.

334+ * Capped low for mobile: a 200-line block rendered at once can jank a low-end phone, so the

335+ * initial render is bounded and a "show more" reveals the rest in place. */

336+ const val collapsedCodeLineThreshold = 80

337+

338+ /** Lines of a unified diff rendered before collapsing to a head with a "show more" affordance.

339+ * Same mobile-performance rationale as [collapsedCodeLineThreshold]. */

340+ const val collapsedDiffLineThreshold = 80

341+

342+ /** Lines of tool output rendered before collapsing to a head with a "show more" affordance. */

343+ const val toolOutputCollapsedLimitChars = 4000

344+

345+ /** Lines of tool output rendered before collapsing to a head with a "show more" affordance.

346+ * A line-based threshold (rather than the char-based [toolOutputCollapsedLimitChars]) keeps

347+ * the collapsed preview a predictable height on mobile — a 4000-char block of short lines

348+ * can be 60+ lines and fill the whole screen, defeating the purpose of collapsing. The

349+ * char cap still applies as a hard upper bound; this line cap kicks in first for typical

350+ * multi-line output. */

351+ const val toolOutputCollapsedLimitLines = 30

352+

353+ /** Tool input (pretty-printed JSON) shorter than this many lines is shown expanded by

354+ * default — for tools like bash/write/edit the command is the most important info and

355+ * hiding it behind a tap inverts the priority. Longer inputs stay collapsed to avoid

356+ * dominating the bubble. */

357+ const val toolInputAutoExpandLineThreshold = 10

358+

359+ /** Tool durations below this many ms are hidden from the tool-name row (sub-second runs

360+ * are instant and the ms figure is noise). Set to 1000 to hide all sub-second durations,

361+ * or 0 to always show. */

362+ const val toolDurationHideBelowMs = 1_000L

363+

364+ /** Characters of tool output included in a shared/exported transcript before truncation. */

365+ const val exportToolOutputLimitChars = 2000

366+

367+ /** Maximum zoom factor applied by pinch or double-tap in the fullscreen image viewer. */

368+ const val imageViewerMaxZoom = 5f

369+

370+ /** Zoom factor a double-tap jumps to when starting from 1× in the fullscreen image viewer. */

371+ const val imageViewerDoubleTapZoom = 2.5f

372+

373+ /** Duration (ms) of the animated double-tap zoom transition in the fullscreen image viewer. */

374+ const val imageViewerZoomAnimMs = 220

375+

376+ /** Vertical drag distance (px) in the fullscreen image viewer that triggers swipe-to-dismiss. */

377+ const val imageViewerSwipeDismissThreshold = 200f

378+

379+ /** Blink period (ms) of the streaming caret at the tail of a live assistant reply. */

380+ const val streamingCaretPeriodMs = 500

381+

382+ /** Target maximum length (chars) of a single TTS chunk. Android's TextToSpeech enforces a

383+ * hard limit (getMaxSpeechInputLength, ~4000 chars) — this is a tighter cap so pause/

384+ * resume restarts at a finer granularity. Without it, a pause mid-chunk restarts the

385+ * whole chunk from its start; smaller chunks mean less replay on resume. Sentence

386+ * boundaries are still preferred, so short sentences pack up to this cap. */

387+ const val ttsChunkTargetMaxChars = 200

388+

389+ /** Auto-reject a tool-permission prompt after this many ms if the user hasn't responded,

390+ * so a forgotten prompt doesn't block the run indefinitely. The foreground service keeps

391+ * the process alive, so without a timeout a prompt that the user walked away from holds

392+ * the run open forever. The timeout is long (10 minutes) so a deliberate pause to read

393+ * the prompt doesn't trip it; a reminder toast-style line appears in the dialog after

394+ * [permissionReminderThresholdMs] to surface that the run is waiting. Set to 0 to disable. */

395+ const val permissionAutoRejectMs = 10L * 60 * 1000

396+

397+ /** Show a "still waiting" reminder in the permission dialog after this many ms. */

398+ const val permissionReminderThresholdMs = 60L * 1000

399+

400+ /** Duration (ms) the copy button shows its checkmark confirmation before reverting. */

401+ const val copyFeedbackMs = 1200

402+

403+ /** Gutter width (dp) for each side (old/new) of a unified-diff line-number column. */

404+ const val diffGutterWidthDp = 36

405+

406+ /** Width (dp) of the +/- prefix column in a unified-diff row. */

407+ const val diffPrefixWidthDp = 16

408+

409+ /** Maximum width (dp) of a breadcrumb segment in the file browser (non-last segments). */

410+ const val breadcrumbSegmentMaxWidthDp = 120

411+

412+ /** Maximum width (dp) of the last (current) breadcrumb segment in the file browser. */

413+ const val breadcrumbLastSegmentMaxWidthDp = 220

414+

415+ /** Vertical scroll threshold beyond which the chat "scroll to top" FAB appears. */

416+ const val chatScrollToTopFabThreshold = 200

417+

418+ /** Maximum width (dp) for an attachment chip's filename text before it truncates. */

419+ const val attachmentChipNameMaxWidthDp = 120

420+

421+ /** Maximum height (dp) for the expanded todo-plan checklist in a message bubble. */

422+ const val todoPlanMaxHeightDp = 240

423+

424+ /** Fallback height (dp) for the connection banner when no text is available (e.g. exit fade). */

425+ const val connectionBannerFallbackHeightDp = 44

426+

427+ // --- Motion tokens (shared across screens) ---

428+

429+ /** Duration (ms) for horizontal slide push/pop nav transitions. M3 spec recommends 200ms

430+ * for medium-duration container transitions. */

431+ const val motionSlideDurationMs = 200

432+ /** Duration (ms) for fade in/out nav and content transitions. */

433+ const val motionFadeDurationMs = 180

434+

435+ // --- Font scaling ---

436+

437+ /** Upper bound on the *combined* app×OS font scale. The chat text-size preference

438+ * multiplies on top of the system font scale, so a user at a large system size and

439+ * a large app size can reach ~2× and break tight layouts. The provided app scale is

440+ * clamped so the product with the OS fontScale never exceeds this. */

441+ const val maxCombinedFontScale = 1.8f

442+}

app/src/main/java/soy/iko/opencode/data/network/OpencodeApiClient.ktnew file+549

@@ -0,0 +1,549 @@

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. Naturally

220+ * idempotent (reverting to the same point twice yields the same state). */

221+ open suspend fun revert(sessionId: String, messageId: String, partId: String? = null): Session = withRetry {

222+ client!!.post("session/${encode(sessionId)}/revert") {

223+ contentType(ContentType.Application.Json)

224+ setBody(RevertRequest(messageID = messageId, partID = partId))

225+ }.body()

226+ }

227+

228+ /** Undo the active revert checkpoint, restoring the hidden messages. */

229+ open suspend fun unrevert(sessionId: String): Session = withRetry {

230+ client!!.post("session/${encode(sessionId)}/unrevert").body()

231+ }

232+

233+ /** Create a public share link for the session. Returns the session with [Session.share] set.

234+ * Mint the Idempotency-Key *before* withRetry so a retried POST (first request reached the

235+ * server but its response was lost) doesn't create a second, orphaned, still-valid share. */

236+ open suspend fun shareSession(sessionId: String): Session {

237+ val idempotencyKey = java.util.UUID.randomUUID().toString()

238+ return withRetry {

239+ client!!.post("session/${encode(sessionId)}/share") {

240+ header("Idempotency-Key", idempotencyKey)

241+ }.body()

242+ }

243+ }

244+

245+ /** Revoke the session's public share link. Returns the session with share cleared.

246+ * Like [deleteSession], a retried DELETE (first reached the server but the response was

247+ * lost) hits an already-unshared session and gets 404 — revoking a non-shared session is

248+ * effectively success, so swallow 404 rather than surfacing a spurious failure. */

249+ open suspend fun unshareSession(sessionId: String): Session {

250+ return try {

251+ withRetry { client!!.delete("session/${encode(sessionId)}/share").body() }

252+ } catch (t: ClientRequestException) {

253+ if (t.response.status.value != 404) throw t

254+ withRetry { client!!.get("session/${encode(sessionId)}").body() }

255+ }

256+ }

257+

258+ /** Ask the agent to summarize/compact the conversation to reclaim context. The compacted

259+ * summary streams back via SSE like any run; this just triggers it. */

260+ open suspend fun summarize(sessionId: String, model: ModelRef) {

261+ val idempotencyKey = java.util.UUID.randomUUID().toString()

262+ withRetry {

263+ client!!.post("session/${encode(sessionId)}/summarize") {

264+ contentType(ContentType.Application.Json)

265+ header("Idempotency-Key", idempotencyKey)

266+ setBody(SummarizeRequest(providerID = model.providerID, modelID = model.modelID))

267+ }.body<String>()

268+ }

269+ }

270+

271+ /** Analyze the project and (re)generate its AGENTS.md. The body is omitted so the server

272+ * assigns the message id and uses its default model; the run streams back via SSE. */

273+ open suspend fun initSession(sessionId: String) {

274+ val idempotencyKey = java.util.UUID.randomUUID().toString()

275+ withRetry {

276+ client!!.post("session/${encode(sessionId)}/init") {

277+ header("Idempotency-Key", idempotencyKey)

278+ }.body<String>()

279+ }

280+ }

281+

282+ /** Run a one-off shell [command] in the session's worktree. Output streams back via SSE.

283+ * [agent] scopes the run (the server requires it). */

284+ open suspend fun shell(sessionId: String, command: String, agent: String, model: ModelRef? = null) {

285+ val idempotencyKey = java.util.UUID.randomUUID().toString()

286+ withRetry {

287+ client!!.post("session/${encode(sessionId)}/shell") {

288+ contentType(ContentType.Application.Json)

289+ header("Idempotency-Key", idempotencyKey)

290+ setBody(ShellRequest(agent = agent, command = command, model = model))

291+ }.body<String>()

292+ }

293+ }

294+

295+ open suspend fun providers(): ProvidersResponse {

296+ val generation: Int

297+ providersMutex.withLock {

298+ val cached = cachedProviders

299+ if (cached != null && System.currentTimeMillis() - cached.fetchedAt < NetworkConfig.catalogCacheTtlMs) {

300+ return cached.value

301+ }

302+ generation = providersGeneration

303+ }

304+ // Fetch outside the lock so a slow/retrying request (and its backoff) can't stall other

305+ // callers or cache invalidation. Concurrent cold callers may double-fetch — acceptable

306+ // for a rarely-fetched catalog — and the last store wins.

307+ val value = withRetry { client!!.get("config/providers").body<ProvidersResponse>() }

308+ providersMutex.withLock {

309+ // FIX 15: skip the store if an invalidateProvidersCache() raced this fetch — the

310+ // result predates the invalidation and would otherwise resurrect stale data.

311+ if (providersGeneration == generation) cachedProviders = CachedEntry(value, System.currentTimeMillis())

312+ }

313+ return value

314+ }

315+

316+ /** The server's resolved configuration as a raw JSON object. Parsed loosely by callers

317+ * (e.g. the MCP viewer) so a schema addition on the server never breaks decoding. */

318+ open suspend fun config(): kotlinx.serialization.json.JsonObject = withRetry {

319+ client!!.get("config").body()

320+ }

321+

322+ /** Live MCP server status (`GET /mcp`): a map of server name to its status (connected,

323+ * available tools, any error). Decoded as a raw JSON object so a schema change on the

324+ * server never breaks the viewer. */

325+ open suspend fun mcpStatus(): kotlinx.serialization.json.JsonObject = withRetry {

326+ client!!.get("mcp").body()

327+ }

328+

329+ /** Dynamically register an MCP server (`POST /mcp`). [config] is the server's config object

330+ * (type/command-or-url/env…), sent as `{ "name": [name], "config": [config] }`. Mint the

331+ * Idempotency-Key *before* withRetry so a retried POST (first reached the server but the

332+ * response was lost) doesn't register a duplicate. */

333+ open suspend fun addMcp(name: String, config: kotlinx.serialization.json.JsonObject): kotlinx.serialization.json.JsonObject {

334+ val idempotencyKey = java.util.UUID.randomUUID().toString()

335+ return withRetry {

336+ client!!.post("mcp") {

337+ contentType(ContentType.Application.Json)

338+ header("Idempotency-Key", idempotencyKey)

339+ setBody(

340+ buildJsonObject {

341+ put("name", name)

342+ put("config", config)

343+ },

344+ )

345+ }.body()

346+ }

347+ }

348+

349+ open suspend fun agents(): List<Agent> {

350+ val generation: Int

351+ agentsMutex.withLock {

352+ val cached = cachedAgents

353+ if (cached != null && System.currentTimeMillis() - cached.fetchedAt < NetworkConfig.catalogCacheTtlMs) {

354+ return cached.value

355+ }

356+ generation = agentsGeneration

357+ }

358+ // Fetch outside the lock (see providers()): a slow/retrying request can't stall other

359+ // callers or cache invalidation; a rare concurrent double-fetch is acceptable here.

360+ val value = withRetry { client!!.get("agent").body<List<Agent>>() }

361+ agentsMutex.withLock {

362+ // FIX 15: skip the store if an invalidateAgentsCache() raced this fetch (see providers()).

363+ if (agentsGeneration == generation) cachedAgents = CachedEntry(value, System.currentTimeMillis())

364+ }

365+ return value

366+ }

367+

368+ open suspend fun commands(): List<Command> {

369+ val generation: Int

370+ commandsMutex.withLock {

371+ val cached = cachedCommands

372+ if (cached != null && System.currentTimeMillis() - cached.fetchedAt < NetworkConfig.catalogCacheTtlMs) {

373+ return cached.value

374+ }

375+ generation = commandsGeneration

376+ }

377+ // Fetch outside the lock (see providers()): a slow/retrying request can't stall other

378+ // callers or cache invalidation; a rare concurrent double-fetch is acceptable here.

379+ val value = withRetry { client!!.get("command").body<List<Command>>() }

380+ commandsMutex.withLock {

381+ // FIX 15: skip the store if an invalidateCommandsCache() raced this fetch (see providers()).

382+ if (commandsGeneration == generation) cachedCommands = CachedEntry(value, System.currentTimeMillis())

383+ }

384+ return value

385+ }

386+

387+ /** Invalidate the catalog cache (e.g. on server switch). */

388+ open suspend fun invalidateCache() {

389+ // FIX 15: bump each generation so an in-flight fetch drops its now-stale result.

390+ providersMutex.withLock { cachedProviders = null; providersGeneration++ }

391+ agentsMutex.withLock { cachedAgents = null; agentsGeneration++ }

392+ commandsMutex.withLock { cachedCommands = null; commandsGeneration++ }

393+ }

394+

395+ open suspend fun invalidateProvidersCache() {

396+ providersMutex.withLock { cachedProviders = null; providersGeneration++ }

397+ }

398+

399+ open suspend fun invalidateAgentsCache() {

400+ agentsMutex.withLock { cachedAgents = null; agentsGeneration++ }

401+ }

402+

403+ open suspend fun invalidateCommandsCache() {

404+ commandsMutex.withLock { cachedCommands = null; commandsGeneration++ }

405+ }

406+

407+ /** Respond to a permission request so a paused tool run can proceed. */

408+ open suspend fun respondPermission(

409+ sessionId: String,

410+ permissionId: String,

411+ response: PermissionResponse,

412+ ): String = try {

413+ withRetry {

414+ client!!.post("session/${encode(sessionId)}/permissions/${encode(permissionId)}") {

415+ contentType(ContentType.Application.Json)

416+ setBody(PermissionReplyBody(response.wire))

417+ }.body<String>()

418+ }

419+ } catch (t: ClientRequestException) {

420+ // A response that reached the server but whose reply was lost gets retried; the

421+ // retry finds the permission already resolved (404 gone / 409 conflict). Both mean

422+ // the answer landed (or the session/permission no longer exists, in which case the

423+ // response is moot anyway), so treat them as success instead of a spurious failure

424+ // that would re-queue the dialog against a gone session. Log the swallowed status

425+ // so a 404 caused by a deleted session is debuggable rather than fully silent.

426+ val code = t.response.status.value

427+ if (code != 404 && code != 409) throw t

428+ android.util.Log.d("OpencodeApi", "respondPermission swallowed $code for session=$sessionId permission=$permissionId")

429+ ""

430+ }

431+

432+ // --- Files ---

433+

434+ open suspend fun findFiles(query: String): List<String> = withRetry {

435+ client!!.get("find/file") { parameter("query", query) }.body()

436+ }

437+

438+ /** Ripgrep content search across the project (`GET /find?pattern=`). */

439+ open suspend fun findText(pattern: String): List<FindMatch> = withRetry {

440+ client!!.get("find") { parameter("pattern", pattern) }.body()

441+ }

442+

443+ /** LSP workspace symbol search (`GET /find/symbol?query=`). */

444+ open suspend fun findSymbol(query: String): List<SymbolResult> = withRetry {

445+ client!!.get("find/symbol") { parameter("query", query) }.body()

446+ }

447+

448+ open suspend fun listDirectory(path: String): List<FileNode> = withRetry {

449+ client!!.get("file") { parameter("path", path) }.body()

450+ }

451+

452+ open suspend fun readFile(path: String): FileContent = withRetry {

453+ client!!.get("file/content") { parameter("path", path) }.body()

454+ }

455+

456+ open suspend fun fileStatus(): List<FileStatusEntry> = withRetry {

457+ client!!.get("file/status").body()

458+ }

459+}

460+

461+private suspend fun <T> withRetry(

462+ maxAttempts: Int = NetworkConfig.retryMaxAttempts,

463+ initialDelayMs: Long = NetworkConfig.retryInitialDelayMs,

464+ block: suspend () -> T,

465+): T = withRetryInternal(maxAttempts, initialDelayMs, jitterFactor = NetworkConfig.retryJitterFactor, block)

466+

467+/**

468+ * Retry a suspending block up to [maxAttempts] times with exponential backoff.

469+ * Cancellation exceptions are re-thrown immediately. Client errors (4xx) are

470+ * non-retryable — a 401 or 404 won't succeed on retry, so they surface immediately

471+ * instead of wasting up to 3.5 s of backoff. Network failures, timeouts, and 5xx

472+ * server errors are retried. Exposed as `internal` so the retry/skip rules are

473+ * unit-testable without an HTTP server.

474+ */

475+internal suspend fun <T> withRetryInternal(

476+ maxAttempts: Int = NetworkConfig.retryMaxAttempts,

477+ initialDelayMs: Long = NetworkConfig.retryInitialDelayMs,

478+ jitterFactor: Double = NetworkConfig.retryJitterFactor,

479+ block: suspend () -> T,

480+): T {

481+ var lastError: Throwable? = null

482+ for (attempt in 1..maxAttempts) {

483+ try {

484+ return block()

485+ } catch (c: kotlinx.coroutines.CancellationException) {

486+ throw c

487+ } catch (t: ClientRequestException) {

488+ // 408 (Request Timeout) and 429 (Too Many Requests) are transient — retry with

489+ // backoff. All other 4xx are non-retryable (a 401/404 won't succeed on retry).

490+ val status = t.response.status.value

491+ if (status != 408 && status != 429) throw t

492+ lastError = t

493+ if (attempt < maxAttempts) {

494+ delay(jitteredBackoff(attempt, initialDelayMs, jitterFactor))

495+ }

496+ } catch (t: ServerResponseException) {

497+ // 5xx server errors are retryable with backoff.

498+ lastError = t

499+ if (attempt < maxAttempts) {

500+ delay(jitteredBackoff(attempt, initialDelayMs, jitterFactor))

501+ }

502+ } catch (t: ResponseException) {

503+ // 3xx (redirect limit exceeded) is non-retryable.

504+ throw t

505+ } catch (t: io.ktor.serialization.ContentConvertException) {

506+ // A malformed/unexpected response body (deserialization failure via content

507+ // negotiation) is deterministic — it fails identically on every attempt — so

508+ // retrying only burns the whole backoff budget re-parsing the same bytes. Fail

509+ // fast instead.

510+ throw t

511+ } catch (t: IllegalArgumentException) {

512+ // Also deterministic: a bad argument, or a raw kotlinx SerializationException

513+ // (which extends IllegalArgumentException) thrown outside content negotiation.

514+ throw t

515+ } catch (t: Exception) {

516+ lastError = t

517+ if (attempt < maxAttempts) {

518+ delay(jitteredBackoff(attempt, initialDelayMs, jitterFactor))

519+ }

520+ }

521+ }

522+ throw lastError ?: IllegalStateException("withRetry failed without error")

523+}

524+

525+/** Computes an exponential backoff delay with symmetric jitter. Exposed as `internal`

526+ * so the backoff formula is unit-testable without an HTTP server. */

527+internal fun jitteredBackoff(

528+ attempt: Int,

529+ initialDelayMs: Long,

530+ jitterFactor: Double,

531+): Long {

532+ // Guard against Int overflow from the shift and Long overflow from

533+ // the multiplication at high attempt counts.

534+ val shift = (attempt - 1).coerceAtMost(30)

535+ val baseDelay = (initialDelayMs * (1L shl shift)).coerceAtMost(NetworkConfig.retryMaxDelayMs)

536+ // Symmetric jitter: vary by ±jitterFactor so the delay is sometimes

537+ // shorter, sometimes longer — spreads concurrent client retries and

538+ // prevents thundering-herd reconnection storms.

539+ val jitter = ((baseDelay * jitterFactor) * (Random.nextDouble() * 2 - 1)).toLong()

540+ return (baseDelay + jitter).coerceAtLeast(0)

541+}

542+

543+/** URL-encode a path segment, replacing + with %20 (URLEncoder uses query-param encoding).

544+ * URLEncoder leaves '.' unencoded, so a "." or ".." segment would otherwise survive as a real

545+ * path-traversal component; percent-encode a segment that is nothing but dots. */

546+private fun encode(segment: String): String {

547+ val encoded = URLEncoder.encode(segment, "UTF-8").replace("+", "%20")

548+ return if (encoded.isNotEmpty() && encoded.all { it == '.' }) encoded.replace(".", "%2E") else encoded

549+}

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+114

@@ -0,0 +1,114 @@

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+ file.writeText(encoded)

91+ tmp.delete()

92+ }

93+ }

94+ }.onFailure { Log.w("AttachmentDraftStore", "Failed to persist attachments for $sessionId", it) }

95+ Unit

96+ }

97+ }

98+

99+ /** Remove staged attachments for a session (call on session deletion). */

100+ open suspend fun remove(sessionId: String) {

101+ // Keep the per-session Mutex in [locks] rather than evicting it: remove() is not always

102+ // terminal — a concurrent teardown save() for the same session must serialize against this

103+ // delete under the *same* Mutex instance. Evicting here would let that save() acquire a

104+ // fresh Mutex, so the two operations no longer serialize (resurrecting an orphan file, or

105+ // theoretically tearing a write). The bounded per-session map growth matches the other

106+ // lock-keyed stores.

107+ lockFor(sessionId).withLock {

108+ withContext(Dispatchers.IO) {

109+ runCatchingCancellable { fileFor(sessionId)?.delete() }

110+ Unit

111+ }

112+ }

113+ }

114+}

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+294

@@ -0,0 +1,294 @@

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+ fun install() {

52+ val previous = Thread.getDefaultUncaughtExceptionHandler()

53+ Thread.setDefaultUncaughtExceptionHandler { thread, throwable ->

54+ runCatching { writeReport(thread, throwable) }

55+ .onFailure { Log.e("CrashLogger", "Failed to write crash report", it) }

56+ previous?.uncaughtException(thread, throwable)

57+ }

58+ // Load crash reports off the main thread so startup isn't blocked by file I/O

59+ // (listFiles + reading the first line of each report). The StateFlow updates

60+ // whenever the scan completes, so the Diagnostics screen reflects the result.

61+ scope.launch { runCatchingCancellable { refresh() } }

62+ }

63+

64+ /** Monotonic guard so a slower earlier scan can't overwrite a newer one's result.

65+ * refresh() runs on the multi-threaded IO dispatcher from several call sites

66+ * (install/deleteReport/scheduleDelete/clearAll), so two scans can overlap. */

67+ private val refreshGeneration = java.util.concurrent.atomic.AtomicLong(0)

68+

69+ fun refresh() {

70+ val generation = refreshGeneration.incrementAndGet()

71+ // Trim over-capacity reports here (off the crashing thread, on the IO dispatcher) so

72+ // the UncaughtExceptionHandler path does only the single writeText it must to land the

73+ // report before the OS kills the process. Trimming on refresh keeps the cap enforced

74+ // across normal app launches (install calls refresh, and every delete/clear calls it).

75+ trimOldReports()

76+ val scanned = crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }

77+ ?.sortedByDescending { it.lastModified() }

78+ ?.map { f ->

79+ CrashReport(

80+ fileName = f.name,

81+ timestamp = f.lastModified(),

82+ preview = runCatching { f.useLines { it.firstOrNull() ?: "" } }.getOrDefault(""),

83+ )

84+ }

85+ .orEmpty()

86+ // Publish only if no newer refresh has started meanwhile, so a stale scan (e.g. one

87+ // that started before a delete) can't momentarily re-show a just-removed report.

88+ if (generation == refreshGeneration.get()) _reports.value = scanned

89+ }

90+

91+ fun readReport(fileName: String): String? {

92+ val file = File(crashDir, fileName).canonicalFile

93+ if (!file.path.startsWith(crashDir.canonicalPath + File.separator) || !file.isFile) return null

94+ return runCatching { file.readText() }.getOrNull()

95+ }

96+

97+ fun deleteReport(fileName: String) {

98+ scope.launch {

99+ val file = File(crashDir, fileName).canonicalFile

100+ if (file.path.startsWith(crashDir.canonicalPath + File.separator)) {

101+ file.delete()

102+ }

103+ refresh()

104+ }

105+ }

106+

107+ /** Whether any crash report is newer than the last-acknowledged timestamp — i.e. a

108+ * crash happened in a previous run that the user hasn't been prompted about yet.

109+ * Called on cold start to surface a "crashed last time" dialog. */

110+ fun hasUnacknowledgedCrash(): Boolean {

111+ val acknowledgedAt = crashPrefs.getLong(KEY_ACKNOWLEDGED_AT, 0L)

112+ return crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }

113+ ?.any { it.lastModified() > acknowledgedAt } == true

114+ }

115+

116+ /** Mark all current crash reports as acknowledged so the cold-start prompt doesn't

117+ * re-fire on the next launch. */

118+ fun acknowledgeCrashes() {

119+ crashPrefs.edit().putLong(KEY_ACKNOWLEDGED_AT, System.currentTimeMillis()).apply()

120+ }

121+

122+ /** Deferred deletions keyed by file name, so an Undo can cancel one before it fires. */

123+ private val pendingDeletes = java.util.concurrent.ConcurrentHashMap<String, Job>()

124+

125+ /**

126+ * Schedule [fileName] for deletion after [delayMs], cancellable via

127+ * [cancelScheduledDelete]. Runs on the logger's own long-lived scope — not the

128+ * Diagnostics screen's composition scope — so navigating away during the undo window

129+ * still commits the delete instead of silently dropping it. A repeated schedule for

130+ * the same name replaces the prior timer.

131+ */

132+ fun scheduleDelete(fileName: String, delayMs: Long) {

133+ val job = scope.launch {

134+ delay(delayMs)

135+ // Atomically claim the delete by removing our own map entry BEFORE deleting.

136+ // The remove is the synchronization point with cancelScheduledDelete: whichever

137+ // removes the entry first wins. If an undo raced the timer and removed it first,

138+ // this returns false and we skip the delete — so the file survives, matching the

139+ // `true` that cancel returned to the UI. Deleting first (then removing) would let

140+ // a cancel land in the gap and falsely report "undo succeeded" for a gone file.

141+ // remove(name, thisJob) also no-ops for a stale job after a reschedule.

142+ val claimed = coroutineContext[Job]?.let { pendingDeletes.remove(fileName, it) } == true

143+ if (!claimed) return@launch

144+ val file = File(crashDir, fileName).canonicalFile

145+ if (file.path.startsWith(crashDir.canonicalPath + File.separator)) {

146+ file.delete()

147+ }

148+ refresh()

149+ }

150+ pendingDeletes.put(fileName, job)?.cancel()

151+ }

152+

153+ /** Cancel a pending deferred delete (the Undo action). Returns true if it was still

154+ * pending (undo succeeded), false if the delete had already fired. */

155+ fun cancelScheduledDelete(fileName: String): Boolean {

156+ val job = pendingDeletes.remove(fileName) ?: return false

157+ job.cancel()

158+ return true

159+ }

160+

161+ fun clearAll() {

162+ scope.launch {

163+ crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }?.forEach { it.delete() }

164+ refresh()

165+ }

166+ }

167+

168+ /** Deferred whole-directory clear, cancellable via [cancelScheduledClearAll] so the bulk

169+ * action gets the same undo window as a single-report delete. Runs on the logger's own

170+ * scope so it commits even if the user leaves the Diagnostics screen. */

171+ // AtomicReference (not a bare @Volatile var): the timer-fired claim must be a CAS,

172+ // not an unconditional null, else a reschedule that installed a newer job loses its

173+ // entry to the old coroutine's null and the clear runs immediately instead of after

174+ // the new delay (and cancelScheduledClearAll then falsely reports "already fired").

175+ // Mirrors scheduleDelete's ConcurrentHashMap.remove(name, job) claim.

176+ private val pendingClearAll = java.util.concurrent.atomic.AtomicReference<Job?>(null)

177+

178+ fun scheduleClearAll(delayMs: Long) {

179+ val job = scope.launch {

180+ delay(delayMs)

181+ // Atomically claim the clear by CAS-ing our own entry to null, mirroring

182+ // scheduleDelete's claim pattern: a reschedule (or cancel) that nulls first

183+ // makes this a no-op. Without the CAS, an unconditional null would wipe a

184+ // newer job installed by a reschedule.

185+ val mine = coroutineContext[Job]

186+ if (mine == null || !pendingClearAll.compareAndSet(mine, null)) return@launch

187+ crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") }?.forEach { it.delete() }

188+ refresh()

189+ }

190+ pendingClearAll.getAndSet(job)?.cancel()

191+ }

192+

193+ /** Cancel a pending clear-all (the Undo action). Returns true if it was still pending. */

194+ fun cancelScheduledClearAll(): Boolean {

195+ val job = pendingClearAll.getAndSet(null) ?: return false

196+ job.cancel()

197+ return true

198+ }

199+

200+ fun reportCount(): Int = _reports.value.size

201+

202+ /** Cancel the internal coroutine scope so background work doesn't outlive the

203+ * process. Called from [AppContainer.shutdown]. The UncaughtExceptionHandler is

204+ * intentionally left installed — a crash during shutdown still needs to be logged. */

205+ fun shutdown() {

206+ scope.cancel()

207+ }

208+

209+ private fun writeReport(thread: Thread, throwable: Throwable) {

210+ val now = Date()

211+ val stamp = SimpleDateFormat("yyyy-MM-dd_HH-mm-ss-SSS", Locale.US).format(now)

212+ // Append a short random suffix so two crashes in the same millisecond don't

213+ // overwrite each other.

214+ val suffix = java.lang.Long.toHexString(System.nanoTime())

215+ val file = File(crashDir, "crash-$stamp-$suffix.txt")

216+ val sw = StringWriter()

217+ PrintWriter(sw).use { pw ->

218+ pw.println("opencode-android crash report")

219+ pw.println("Time: ${SimpleDateFormat("yyyy-MM-dd HH:mm:ss z", Locale.US).format(now)}")

220+ pw.println("Thread: ${thread.name}")

221+ pw.println("App version: ${appVersion()}")

222+ pw.println("Device: ${Build.MANUFACTURER} ${Build.MODEL}")

223+ pw.println("Android: ${Build.VERSION.RELEASE} (API ${Build.VERSION.SDK_INT})")

224+ pw.println("ABI: ${Build.SUPPORTED_ABIS.joinToString()}")

225+ pw.println()

226+ pw.println(throwable.javaClass.name + ": " + throwable.message)

227+ throwable.printStackTrace(pw)

228+ }

229+ // Scrub URLs from the *entire* report. printStackTrace re-emits the exception

230+ // message (and every "Caused by:" message) verbatim, so scrubbing only the

231+ // top-level message above is futile — Ktor/OkHttp embed the full request URL

232+ // in those messages, which may contain auth or internal paths. Scrubbing the

233+ // assembled text guarantees no URL survives anywhere in the stored report.

234+ //

235+ // NOTE: trimOldReports() is intentionally NOT called here. writeReport runs on the

236+ // crashing thread inside the UncaughtExceptionHandler, where the OS gives ~5s before

237+ // SIGKILL; trimOldReports does listFiles + sortedByDescending + N deletes that could

238+ // exceed that window on a slow device with many old reports, losing THIS report. The

239+ // trim is driven by refresh() instead (IO dispatcher, off the crashing thread), so the

240+ // crash path does only the single writeText it must to preserve the report.

241+ file.writeText(scrubUrls(sw.toString()))

242+ }

243+

244+ /** Keep only the [MAX_REPORTS] most recent crash reports, deleting older ones. Runs inside

245+ * the uncaught-exception handler (the whole call is wrapped in runCatching upstream), so it

246+ * must not throw; each delete is guarded. */

247+ private fun trimOldReports() {

248+ val files = crashDir.listFiles { f -> f.isFile && f.name.endsWith(".txt") } ?: return

249+ if (files.size <= MAX_REPORTS) return

250+ files.sortedByDescending { it.lastModified() }

251+ .drop(MAX_REPORTS)

252+ .forEach { runCatching { it.delete() } }

253+ }

254+

255+ private fun appVersion(): String = runCatching {

256+ val pi = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

257+ appContext.packageManager.getPackageInfo(

258+ appContext.packageName,

259+ PackageManager.PackageInfoFlags.of(0),

260+ )

261+ } else {

262+ @Suppress("DEPRECATION")

263+ appContext.packageManager.getPackageInfo(appContext.packageName, 0)

264+ }

265+ "${pi.versionName} (${PackageInfoCompat.getLongVersionCode(pi)})"

266+ }.getOrDefault("unknown")

267+

268+ companion object {

269+ /** Cap on retained crash report files. A deterministic crash-loop (e.g. a crash on

270+ * startup) writes one report per crash with no other bound, so without this the

271+ * crashes/ dir grows without limit until the user manually clears it. */

272+ private const val MAX_REPORTS = 20

273+

274+ private const val KEY_ACKNOWLEDGED_AT = "acknowledged_at"

275+

276+ /** Regex matching http(s) URLs, shared by report writing and [scrubUrls]. */

277+ internal val SCRUB_URL_REGEX = Regex("https?://[^\\s\"']+")

278+

279+ /**

280+ * Replace every http(s) URL in [text] with `[url]`. Exposed as `internal` so the

281+ * redaction (used on the whole crash report, including exception messages and

282+ * stack traces produced by printStackTrace) can be unit-tested in isolation.

283+ */

284+ internal fun scrubUrls(text: String): String = SCRUB_URL_REGEX.replace(text, "[url]")

285+

286+ @Volatile

287+ private var instance: CrashLogger? = null

288+

289+ fun get(context: Context): CrashLogger =

290+ instance ?: synchronized(this) {

291+ instance ?: CrashLogger(context.applicationContext).also { instance = it }

292+ }

293+ }

294+}

app/src/main/java/soy/iko/opencode/data/repo/DraftStore.ktnew file+284

@@ -0,0 +1,284 @@

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).

282+ runCatching { flushExecutor.awaitTermination(2, java.util.concurrent.TimeUnit.SECONDS) }

283+ }

284+}

app/src/main/java/soy/iko/opencode/data/repo/ErrorKind.ktnew file+78

@@ -0,0 +1,78 @@

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+ is ClientRequestException -> return ErrorKind.CLIENT

55+ is RedirectResponseException -> return ErrorKind.CLIENT

56+ is IOException -> return ErrorKind.NETWORK

57+ else -> {

58+ // Any other ResponseException (unrecognized status family).

59+ if (current is ResponseException) return ErrorKind.SERVER

60+ }

61+ }

62+ current = current.cause

63+ hops++

64+ }

65+ return ErrorKind.UNKNOWN

66+}

67+

68+/** The HTTP status code carried by a client/server error, if any. */

69+fun responseStatusCode(t: Throwable): Int? {

70+ var current: Throwable? = t

71+ var hops = 0

72+ while (current != null && hops < 8) {

73+ if (current is ResponseException) return current.response.status.value

74+ current = current.cause

75+ hops++

76+ }

77+ return null

78+}

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+137

@@ -0,0 +1,137 @@

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. Bounded by distinct deleted sessions. */

68+ private val tombstones: MutableSet<String> =

69+ java.util.Collections.newSetFromMap(java.util.concurrent.ConcurrentHashMap())

70+

71+ private fun tombstoneKey(profileId: String, sessionId: String): String = "$profileId/$sessionId"

72+

73+ /** Load the cached messages for [sessionId] under [profileId], or empty if none / unreadable. */

74+ open suspend fun load(profileId: String, sessionId: String): List<MessageWithParts> = lockFor(sessionId).withLock {

75+ // Re-opening a session re-enables saving: clear any tombstone so a fresh conversation

76+ // write isn't suppressed by a prior deletion of the same (reused) id.

77+ tombstones.remove(tombstoneKey(profileId, sessionId))

78+ withContext(Dispatchers.IO) {

79+ val file = fileFor(profileId, sessionId)?.takeIf { it.exists() } ?: return@withContext emptyList()

80+ runCatchingCancellable { OpencodeJson.decodeFromString(serializer, file.readText()) }

81+ .getOrDefault(emptyList())

82+ }

83+ }

84+

85+ /** Persist [messages] for [sessionId] under [profileId] (an empty list deletes the file). */

86+ open suspend fun save(profileId: String, sessionId: String, messages: List<MessageWithParts>): Unit = lockFor(sessionId).withLock {

87+ // Skip if this session was deleted since the observer started: a teardown flush racing

88+ // after remove() must not re-create the file. (Held under the same per-session lock as

89+ // remove, so the tombstone is visible to a save that lost the race.)

90+ if (tombstoneKey(profileId, sessionId) in tombstones) return@withLock

91+ withContext(Dispatchers.IO) {

92+ val file = fileFor(profileId, sessionId) ?: return@withContext

93+ runCatchingCancellable {

94+ if (messages.isEmpty()) file.delete()

95+ else {

96+ // FIX: write atomically (temp file + rename) like RecentSessionsStore so a

97+ // process kill mid-write can't leave a truncated file that fails to decode,

98+ // wiping the cached conversation on the next open.

99+ val encoded = OpencodeJson.encodeToString(serializer, messages)

100+ val tmp = File(file.parentFile, file.name + ".tmp")

101+ tmp.writeText(encoded)

102+ if (!tmp.renameTo(file)) {

103+ file.writeText(encoded)

104+ tmp.delete()

105+ }

106+ }

107+ }.onFailure { Log.w("MessageCacheStore", "Failed to cache messages for $sessionId", it) }

108+ Unit

109+ }

110+ }

111+

112+ /** Remove a session's cached messages (call on deletion). Deletes only the calling

113+ * profile's cache file — iterating every profile namespace would nuke a *different*

114+ * server's cache for a colliding (but distinct) session id, the very case per-profile

115+ * namespacing exists to defend against. The per-session lock is intentionally NOT

116+ * evicted — a concurrent teardown save() for this id must serialize against the same

117+ * [Mutex] instance, and the map is bounded by the number of distinct sessions touched.

118+ * [profileId] namespaces the tombstone so a delete on one server doesn't suppress another

119+ * server's saves for a colliding session id. The back-compat flat file (pre-namespacing)

120+ * is also cleared since it carries no profile namespace. */

121+ open suspend fun remove(profileId: String, sessionId: String) {

122+ lockFor(sessionId).withLock {

123+ // Set the tombstone before deleting so a concurrent/loser save sees it and skips,

124+ // instead of re-creating the file we're about to delete.

125+ tombstones.add(tombstoneKey(profileId, sessionId))

126+ withContext(Dispatchers.IO) {

127+ runCatchingCancellable {

128+ val name = idRegex.replace(sessionId, "_") + ".json"

129+ profileDir(profileId)?.let { File(it, name).delete() }

130+ // Back-compat: pre-namespacing caches were written flat under [dir].

131+ dir?.let { File(it, name).delete() }

132+ }

133+ Unit

134+ }

135+ }

136+ }

137+}

app/src/main/java/soy/iko/opencode/data/repo/OutboxStore.ktnew file+168

@@ -0,0 +1,168 @@

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+ f.writeText(encoded)

162+ tmp.delete()

163+ }

164+ }

165+ }.onFailure { Log.w("OutboxStore", "Failed to persist outbox", it) }

166+ }

167+ }

168+}

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+90

@@ -0,0 +1,90 @@

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, and only if that still fails fall back to a copy-and-delete that

72+ // preserves atomicity from the reader's perspective (the reader sees either

73+ // the old complete file or the new complete file, never a half-written one,

74+ // because the copy writes to the temp and then atomically moves it).

75+ if (!tmp.renameTo(target)) {

76+ target.delete()

77+ if (!tmp.renameTo(target)) {

78+ // Last-resort: copy bytes then delete temp. The target is briefly

79+ // absent during the copy, but a concurrent reader sees an empty

80+ // list (the runCatching on the read side handles a missing file),

81+ // never a torn file — preserving the documented invariant.

82+ tmp.copyTo(target, overwrite = true)

83+ tmp.delete()

84+ }

85+ }

86+ }

87+ Unit

88+ }

89+ }

90+}

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+672

@@ -0,0 +1,672 @@

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.UnknownMessage

17+import soy.iko.opencode.data.network.EventStreamClient

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

19+import soy.iko.opencode.data.network.OpencodeApiClient

20+import soy.iko.opencode.util.runCatchingCancellable

21+import soy.iko.opencode.util.safeExceptionSummary

22+import android.util.Log

23+import kotlinx.coroutines.CoroutineScope

24+import kotlinx.coroutines.Dispatchers

25+import kotlinx.coroutines.Job

26+import kotlinx.coroutines.NonCancellable

27+import kotlinx.coroutines.delay

28+import kotlinx.coroutines.withContext

29+import kotlinx.coroutines.channels.Channel

30+import kotlinx.coroutines.flow.Flow

31+import kotlinx.coroutines.flow.channelFlow

32+import kotlinx.coroutines.flow.consumeAsFlow

33+import kotlinx.coroutines.flow.conflate

34+import kotlinx.coroutines.flow.flowOn

35+import kotlinx.coroutines.launch

36+import kotlinx.coroutines.sync.Mutex

37+import kotlinx.coroutines.sync.withLock

38+

39+/**

40+ * Source of truth for a session's conversation. It seeds from `GET /session/:id/message`

41+ * and then reduces [BusEvent]s from the SSE stream into an ordered list of messages,

42+ * each keyed by message id with parts keyed by part id (idempotent upserts).

43+ */

44+open class SessionRepository(

45+ private val api: OpencodeApiClient,

46+ private val eventStream: EventStreamClient,

47+ // Optional on-disk cache so a conversation renders instantly on open and stays readable

48+ // offline. Null in tests (and any path that doesn't wire it), where caching is skipped.

49+ private val messageCache: MessageCacheStore? = null,

50+ // Profile the cache is namespaced under, so two servers with a colliding session id don't

51+ // share a cache file. Empty in tests / when no cache is wired.

52+ private val profileId: String = "",

53+) {

54+ open suspend fun listSessions() = api.listSessions()

55+ open suspend fun createSession(title: String? = null, directory: String? = null) =

56+ api.createSession(title, directory)

57+ open suspend fun deleteSession(id: String) = api.deleteSession(id)

58+ open suspend fun abort(sessionId: String) = api.abort(sessionId)

59+

60+ open suspend fun sendPrompt(

61+ sessionId: String,

62+ text: String,

63+ attachments: List<FilePromptPart> = emptyList(),

64+ model: ModelRef?,

65+ agent: String? = null,

66+ // Stable key for retriable/re-sendable messages (the offline outbox). See

67+ // [OpencodeApiClient.sendPrompt]. Null generates a fresh key per call.

68+ idempotencyKey: String? = null,

69+ ) = api.sendPrompt(sessionId, text, attachments, model, agent, idempotencyKey)

70+

71+ open suspend fun runCommand(

72+ sessionId: String,

73+ command: String,

74+ arguments: String = "",

75+ agent: String? = null,

76+ ) = api.runCommand(sessionId, command, arguments = arguments, agent = agent)

77+

78+ /**

79+ * A live, ordered view of [sessionId]'s messages. Begins collecting the event

80+ * stream before the initial REST load so no streamed part is missed, then reduces

81+ * events into the in-memory state. The flow is conflated so a fast burst of

82+ * streaming tokens (each publishing a fresh snapshot) never back-pressures the

83+ * event reducer — a slow collector simply sees the most recent snapshot.

84+ */

85+ /** Per-subscription helper that persists reduced snapshots to [messageCache], throttled so a

86+ * fast token stream doesn't hammer the disk, plus a NonCancellable teardown flush. Extracted

87+ * from [observeMessages] so this cache-write branching lives in its own methods. [scope] is

88+ * the channelFlow scope, so scheduled saves are torn down with the flow — the teardown flush

89+ * re-persists a trailing write the cancellation dropped. */

90+ private inner class CacheWriter(private val scope: CoroutineScope, private val sessionId: String) {

91+ private var lastWrite = 0L

92+ private var pending: Job? = null

93+ // Most recent snapshot handed to [schedule], and the most recent one whose on-disk write

94+ // completed. `saved` is assigned from inside the launched save *after* it returns, so a

95+ // save cancelled mid-IO by teardown is NOT marked saved and [flushOnTeardown] re-persists

96+ // it. Written from the save coroutines, read from the collector/teardown; the only race is

97+ // a stale read causing one redundant, idempotent re-save (atomic temp+rename makes a

98+ // duplicate write of identical data harmless) — never data loss.

99+ private var latest: List<MessageWithParts>? = null

100+ private var saved: List<MessageWithParts>? = null

101+

102+ fun schedule(snapshot: List<MessageWithParts>) {

103+ val cache = messageCache ?: return

104+ if (snapshot.isEmpty()) return

105+ latest = snapshot

106+ val now = System.currentTimeMillis()

107+ pending?.cancel()

108+ // Immediate write once the throttle window has elapsed; otherwise a trailing-edge

109+ // write so a burst that ends inside the window (a run's final tokens right after a

110+ // write) still persists its last snapshot. A newer snapshot cancels and replaces a

111+ // pending trailing write, so continuous streaming coalesces to one write per window.

112+ val delayMs = if (now - lastWrite >= NetworkConfig.messageCacheWriteThrottleMs) {

113+ lastWrite = now

114+ 0L

115+ } else {

116+ NetworkConfig.messageCacheWriteThrottleMs

117+ }

118+ pending = scope.launch {

119+ if (delayMs > 0) delay(delayMs)

120+ cache.save(profileId, sessionId, snapshot)

121+ saved = snapshot

122+ }

123+ }

124+

125+ suspend fun flushOnTeardown() {

126+ // Scheduled saves are children of [scope], so teardown cancels a pending trailing

127+ // write before its delay elapses — a run's final tokens would never reach disk. Flush

128+ // the latest un-saved snapshot under NonCancellable so it survives the cancellation.

129+ val cache = messageCache ?: return

130+ val pendingSnapshot = latest ?: return

131+ if (pendingSnapshot !== saved) {

132+ withContext(NonCancellable) { cache.save(profileId, sessionId, pendingSnapshot) }

133+ }

134+ }

135+ }

136+

137+ open fun observeMessages(sessionId: String): Flow<List<MessageWithParts>> = channelFlow {

138+ val store = MessageStore()

139+ val lock = Mutex()

140+ // Conflated dirty signal: a burst of reduce()/seed() calls coalesces into a

141+ // single snapshot+send per demand cycle. Previously every changed event called

142+ // snapshot() — allocating an O(N) copy of the whole message list — and ~97% of

143+ // those copies were immediately discarded by the outer .conflate() during fast

144+ // streaming (hundreds of tokens/sec). Marking dirty and snapshotting in one

145+ // drain loop means N events in a burst allocate ~1 snapshot, not N.

146+ val dirty = Channel<Unit>(Channel.CONFLATED)

147+

148+ // Mark the store dirty; the drain loop below snapshots and publishes. CONFLATED

149+ // collapses repeated marks into a single pending signal, so a tight burst of

150+ // events doesn't even allocate N marks.

151+ fun publish() { dirty.trySend(Unit) }

152+

153+ // Subscribe to events first so we don't miss early deltas during the initial load.

154+ launch {

155+ eventStream.events.collect { event ->

156+ if (lock.withLock { store.reduce(sessionId, event) }) publish()

157+ }

158+ }

159+

160+ // Seed generation counter, shared between the initial load and the reconnect

161+ // re-seed. Guards against a stale fetch (from an earlier reconnect, or from a slow

162+ // initial load) clobbering a newer seed. Only mutated/read under [lock].

163+ var seedGeneration = 0

164+

165+ // Message ids introduced by the on-disk cache seed below. The initial REST seed uses

166+ // these to prune ghosts: a cache-seeded message absent from the authoritative REST

167+ // snapshot was deleted server-side while the app was closed. Restricting the prune to

168+ // cache-seeded ids means live SSE messages added since subscribe (not yet indexed by

169+ // REST) are never dropped. Written/read only in this collector coroutine.

170+ var cacheSeededIds: Set<String> = emptySet()

171+

172+ // Seed from the on-disk cache first so the conversation renders instantly — and stays

173+ // readable offline — before the network responds. Guarded on generation 0 so a

174+ // reconnect re-seed that somehow raced ahead isn't clobbered; the initial REST seed

175+ // (also generation 0) then overrides this with authoritative data when it succeeds.

176+ messageCache?.let { cache ->

177+ val cached = cache.load(profileId, sessionId)

178+ if (cached.isNotEmpty()) {

179+ val changed = lock.withLock {

180+ if (seedGeneration == 0) {

181+ cacheSeededIds = cached.mapTo(mutableSetOf()) { it.info.id }

182+ store.seed(cached, clearPivot = false)

183+ } else false

184+ }

185+ if (changed) publish()

186+ }

187+ }

188+

189+ // Re-seed from REST when the SSE stream reconnects after a drop. The REST fetch

190+ // is performed *outside* the lock so events arriving via SSE during the fetch are

191+ // not blocked. The seed itself is under the lock; a seed generation counter ensures

192+ // a stale fetch (from an earlier reconnect) doesn't clobber a newer one.

193+ launch {

194+ // Re-seed from REST when the SSE stream reconnects after a drop. The

195+ // hasConnectedBefore flag is NOT reset on disconnect — it stays true after

196+ // the first successful connection so a subsequent reconnect triggers the

197+ // re-seed. Resetting it on disconnect would make the condition always false

198+ // after the first cycle, turning the re-seed into dead code.

199+ //

200+ // A seed generation counter guards against a stale re-seed clobbering a

201+ // newer one: if two reconnects fire in quick succession, the older fetch

202+ // (which returns later) is discarded because its generation no longer matches.

203+ var hasConnectedBefore = false

204+ eventStream.state.collect { state ->

205+ if (state == EventStreamClient.ConnectionState.Connected) {

206+ if (hasConnectedBefore) {

207+ // Pivot before the fetch: parts already in memory predate this

208+ // snapshot and must yield to it, while parts that stream in during

209+ // the fetch (added to streamedSincePivot via reduce) outrank it.

210+ // Bump the generation under the same lock so the compare in the

211+ // initial seed sees a consistent value.

212+ val generation = lock.withLock {

213+ store.beginReseed()

214+ ++seedGeneration

215+ }

216+ val fresh = runCatchingCancellable { api.listMessages(sessionId) }

217+ .onFailure { Log.w("SessionRepository", "Re-seed message load failed for $sessionId; relying on SSE: ${safeExceptionSummary(it)}") }

218+ .getOrDefault(emptyList())

219+ var seedChanged = false

220+ lock.withLock {

221+ if (generation == seedGeneration) {

222+ // Prune cache-seeded ghosts here too, not only in the initial

223+ // REST seed. If the SSE stream connected→dropped→reconnected

224+ // before the initial listMessages returned, seedGeneration was

225+ // already >0 by the time the initial seed ran, so its prune was

226+ // skipped (the `seedGeneration == 0` guard below). Without this

227+ // prune, messages deleted server-side while the app was closed

228+ // would survive as ghosts until a future app restart where the

229+ // timing happened not to recur.

230+ val pruned = store.pruneStaleCacheSeeded(cacheSeededIds, fresh)

231+ // Merge without pruning: SSE events arriving during the

232+ // REST fetch may have added messages not yet indexed by

233+ // the REST endpoint. Pruning would silently delete them.

234+ // Stale messages from deletions during the disconnect

235+ // gap are eventually removed via MessageRemoved events

236+ // or on the next app restart.

237+ val seeded = store.seed(fresh, prune = false)

238+ seedChanged = pruned || seeded

239+ }

240+ }

241+ if (seedChanged) publish()

242+ }

243+ hasConnectedBefore = true

244+ }

245+ }

246+ }

247+

248+ // Load the authoritative message list concurrently with the drain loop below so the

249+ // cache seed and any early SSE-reduced parts are emitted immediately. Running it inline

250+ // here (before the drain starts) would withhold the already-reduced cached conversation

251+ // until this fetch resolved — a blank screen for the whole withRetry backoff when offline.

252+ launch {

253+ val initialResult = runCatchingCancellable { api.listMessages(sessionId) }

254+ .onFailure { Log.w("SessionRepository", "Initial message load failed for $sessionId; relying on cache/SSE: ${safeExceptionSummary(it)}") }

255+ // Apply the initial seed only if no reconnect re-seed has run yet (generation still 0).

256+ // A re-seed is always a fresher full snapshot, so if the (possibly slow) initial fetch

257+ // returns after one has applied, seeding this older REST data would clobber the newer

258+ // state — reverting a completed run to "running", regressing cost/token/part state —

259+ // until the next SSE event or reconnect healed it. Only seed on SUCCESS: on failure

260+ // (e.g. offline) keep whatever's shown (the cache seed above) rather than clearing it.

261+ val seeded = lock.withLock {

262+ val list = initialResult.getOrNull()

263+ if (seedGeneration == 0 && list != null) {

264+ // Prune ghosts first: cache-seeded messages absent from this authoritative

265+ // REST snapshot were deleted server-side while the app was closed. Without

266+ // this they'd survive restart forever (re-seeded from cache, never pruned by

267+ // the reconnect path, and re-persisted by the drain loop).

268+ val pruned = store.pruneStaleCacheSeeded(cacheSeededIds, list)

269+ val changed = store.seed(list)

270+ pruned || changed

271+ } else false

272+ }

273+ if (seeded) publish()

274+ }

275+

276+ // Single drain: one snapshot+send per conflated dirty signal. The snapshot is

277+ // taken under the lock so a reader never sees a half-reduced state; send() runs

278+ // outside the lock so a slow downstream collector can't stall the drain. This

279+ // loop also keeps the flow alive until the collector cancels; the launched jobs

280+ // above are children of this scope and are torn down with it.

281+ // Per-subscription cache writer: throttled snapshot persistence + a NonCancellable

282+ // teardown flush. `this` is the channelFlow scope, so its scheduled saves are torn down

283+ // with the flow (the teardown flush re-persists a cancelled trailing write).

284+ val cacheWriter = CacheWriter(this, sessionId)

285+ // Guarantee at least one emission even when nothing seeds the store: with no on-disk

286+ // cache, a failing initial REST load (swallowed above), and a quiet SSE stream, none of

287+ // the seed paths publish, so the flow would emit nothing at all. The sole collector

288+ // (ChatViewModel) only clears its loading spinner on an emission, so without this a

289+ // first-open of an erroring/empty session spins forever with no way to reach the

290+ // "Failed to load / Retry" affordance. CONFLATED dirty coalesces this with any seed

291+ // publish into a single send.

292+ publish()

293+ try {

294+ dirty.consumeAsFlow().collect {

295+ val snapshot = lock.withLock { store.snapshot() }

296+ send(snapshot)

297+ // Persist to the on-disk cache, throttled so a fast token stream doesn't hammer

298+ // the disk — the cache only needs to be "recent enough" for an instant/offline

299+ // first paint; the network corrects it on the next open.

300+ cacheWriter.schedule(snapshot)

301+ }

302+ } finally {

303+ cacheWriter.flushOnTeardown()

304+ }

305+ // Run the whole reducer pipeline — event reduction, list rebuilds, and the O(N)

306+ // snapshot copy — on Dispatchers.Default rather than the collector's context. The

307+ // sole consumer collects via stateIn(viewModelScope), i.e. Main.immediate, so without

308+ // this every streamed token's reduce()/snapshot() would execute on the UI thread

309+ // (hundreds/sec on a fast run). The seed REST calls here only suspend, so moving them

310+ // off Main is harmless. JSON decoding already runs off-Main upstream in EventStreamClient.

311+ }.flowOn(Dispatchers.Default).conflate()

312+

313+ companion object {

314+ /** Convenience: is this event a run-completion signal for [sessionId]?

315+ * A null sessionID is NOT treated as a wildcard — an idle event with no

316+ * session id must not reset the running state of every open chat. */

317+ fun isIdle(event: BusEvent, sessionId: String): Boolean =

318+ event is SessionIdle && event.properties.sessionID == sessionId

319+

320+ fun isError(event: BusEvent, sessionId: String): Boolean =

321+ event is SessionError && event.properties.sessionID == sessionId

322+

323+ /** Does this event indicate an in-progress run for [sessionId]? A live streamed part or

324+ * an assistant message that isn't yet complete/errored means the agent is still working.

325+ * Used to restore the "running" indicator after an SSE reconnect: if the run is still

326+ * going, such live events keep arriving; a run that finished during the outage produces

327+ * none (its completion arrives via the REST re-seed, not the event stream). */

328+ fun isRunActivity(event: BusEvent, sessionId: String): Boolean = when (event) {

329+ // The session id rides on the part for message.part.updated; properties.sessionID

330+ // is null on the wire. Mirror reduce()'s `part.sessionID ?: properties.sessionID`

331+ // so a run that's only streaming parts still re-lights the indicator on reconnect.

332+ is MessagePartUpdated -> (event.properties.part.sessionID ?: event.properties.sessionID) == sessionId

333+ is MessageUpdated -> {

334+ val info = event.properties.info

335+ info.sessionID == sessionId && info is AssistantMessage && !info.isComplete && info.error == null

336+ }

337+ else -> false

338+ }

339+ }

340+}

341+

342+/**

343+ * In-memory reduction state for one observed session. Not thread-safe; guard with a Mutex.

344+ * Exposed as `internal` so the reducer logic can be unit-tested directly.

345+ */

346+internal class MessageStore {

347+ // messageId -> mutable holder (info + insertion-ordered parts); the map itself is

348+ // insertion-ordered.

349+ private val messages = LinkedHashMap<String, Holder>()

350+

351+ /**

352+ * Mutable per-message holder. Parts live in an insertion-ordered map keyed by part id, so a

353+ * streamed part update is an O(1) put instead of an O(P) list rebuild. The immutable

354+ * [MessageWithParts] view is materialized lazily and cached until the next mutation — so a

355+ * burst of streamed token updates rebuilds a message's part list at most once per published

356+ * [snapshot], not once per token. The cached view is also reference-stable across snapshots

357+ * while unchanged, so Compose skips recomposing bubbles that didn't change.

358+ */

359+ private class Holder(var info: MessageInfo, val parts: LinkedHashMap<String, Part>) {

360+ private var cached: MessageWithParts? = null

361+ fun view(): MessageWithParts =

362+ cached ?: MessageWithParts(info, parts.values.toList()).also { cached = it }

363+ /** Adopt an existing immutable instance as the cache — avoids an immediate rebuild and

364+ * preserves its identity (e.g. when seeding an authoritative REST snapshot). */

365+ fun adopt(m: MessageWithParts) { cached = m }

366+ fun invalidate() { cached = null }

367+ }

368+

369+ /** Build a [Holder] from an immutable message, reusing [m] itself as the cached view. */

370+ private fun holderOf(m: MessageWithParts): Holder {

371+ val parts = LinkedHashMap<String, Part>(m.parts.size)

372+ for (p in m.parts) parts[p.id] = p

373+ return Holder(m.info, parts).also { it.adopt(m) }

374+ }

375+

376+ /** Part ids upserted via [reduce] since the last reseed pivot ([beginReseed]) or seed.

377+ * On a reconnect re-seed these are the parts that streamed in *during* the REST fetch,

378+ * so they're newer than the snapshot and must win over it; every other part is taken

379+ * from the authoritative REST snapshot. Without this distinction the merge kept every

380+ * overlapping in-memory part, so a part that changed server-side during the disconnect

381+ * (e.g. a tool going running -> completed) stayed stale until app restart. */

382+ private val streamedSincePivot = mutableSetOf<String>()

383+

384+ /** Message ids whose `info` was updated via a live SSE [reduce] since the last reseed

385+ * pivot ([beginReseed]) or seed. Parallels [streamedSincePivot] but for message info:

386+ * on a reconnect re-seed these are the messages whose info changed *during* the REST

387+ * fetch, so the in-memory info is newer than the snapshot and must win; every other

388+ * message's info is taken from the authoritative REST snapshot. Without this the merge

389+ * kept the in-memory info, so a run that finished server-side during the disconnect

390+ * (e.g. cost/token totals, completion time) stayed stale until app restart. */

391+ private val messageInfoUpdatedSincePivot = mutableSetOf<String>()

392+

393+ /** Mark the point a reconnect re-seed's REST fetch begins: parts/info streamed from here

394+ * on are newer than the fetched snapshot. Call under the same lock as [seed]/[reduce]. */

395+ fun beginReseed() {

396+ streamedSincePivot.clear()

397+ messageInfoUpdatedSincePivot.clear()

398+ }

399+

400+ /** Maximum number of messages to keep in memory; oldest are evicted when exceeded. */

401+ internal val maxMessages = NetworkConfig.maxInMemoryMessages

402+

403+ fun snapshot(): List<MessageWithParts> = messages.values.map { it.view() }

404+

405+ fun seed(initial: List<MessageWithParts>, prune: Boolean = false, clearPivot: Boolean = true): Boolean {

406+ var changed = false

407+ // On re-seed (after SSE reconnect), remove messages that are no longer in the

408+ // server snapshot (e.g. deleted during the disconnection gap). This keeps the

409+ // in-memory state in sync with the authoritative REST snapshot rather than

410+ // accumulating stale messages forever. Skipped on the initial seed to avoid

411+ // racing with just-arrived SSE events whose messages may not yet be in REST.

412+ if (prune) {

413+ // Build the retain-set from the synthetic key (matching the map's keying for

414+ // UnknownMessages with empty ids) so an entry stored under "unknown-c<created>"

415+ // isn't wrongly evicted and re-inserted under "" — which would lose its

416+ // insertion-order position and force a spurious snapshot emission.

417+ val incomingKeys = initial.mapTo(mutableSetOf()) { syntheticKeyFor(it) }

418+ val before = messages.size

419+ messages.keys.retainAll(incomingKeys)

420+ if (messages.size != before) changed = true

421+ }

422+

423+ for (m in initial) {

424+ val key = syntheticKeyFor(m)

425+ val existing = messages[key]

426+ if (existing == null) {

427+ messages[key] = holderOf(m)

428+ changed = true

429+ } else {

430+ // A part streamed in between subscribe and this initial load may already

431+ // have populated this message (see observeMessages). Merge instead of

432+ // overwriting so that newer streamed part isn't discarded: take the

433+ // snapshot's part order, swap in the streamed version where ids overlap,

434+ // append any streamed-only parts, and adopt the authoritative REST info.

435+ val streamedById = existing.parts

436+ val snapshotIds = m.parts.mapTo(mutableSetOf()) { it.id }

437+ // Prefer the in-memory version of an overlapping part ONLY if it streamed

438+ // in since the reseed pivot (i.e. during this fetch), so it's newer than

439+ // the snapshot. Otherwise the REST snapshot is authoritative and wins,

440+ // discarding an in-memory part that went stale during a disconnect.

441+ val ordered = m.parts.map { p ->

442+ if (p.id in streamedSincePivot) streamedById[p.id] ?: p else p

443+ }.toMutableList()

444+ // Append only parts that streamed in *since the pivot* and are absent from the

445+ // snapshot — i.e. genuinely newer than this REST fetch. A part in memory from

446+ // before the pivot that the snapshot omits was removed server-side; the

447+ // authoritative REST snapshot must be allowed to drop it, else it reappears as

448+ // a ghost and gets baked into the on-disk cache forever.

449+ for (p in existing.parts.values) {

450+ if (p.id !in snapshotIds && p.id in streamedSincePivot) ordered.add(p)

451+ }

452+ // Adopt the authoritative REST info unless the in-memory info was itself

453+ // updated live since the pivot (i.e. during this fetch), in which case it's

454+ // newer than the snapshot. Otherwise the REST snapshot wins. The pivot set is

455+ // keyed by the same synthetic key used in the map (see handleMessageUpdated),

456+ // so test that here instead of m.info.id — which is "" for an UnknownMessage

457+ // and would never match, leaving the pivot protection inert for that case.

458+ val info = if (existing.info is UnknownMessage || key !in messageInfoUpdatedSincePivot) m.info else existing.info

459+ val merged = MessageWithParts(info = info, parts = ordered)

460+ if (merged != existing.view()) {

461+ // Store under `key` (the synthetic key for an empty-id UnknownMessage),

462+ // not `m.info.id` (which is "" for such a message and would collide).

463+ messages[key] = holderOf(merged)

464+ changed = true

465+ }

466+ }

467+ }

468+ // A part that streamed in *before* this initial load (observeMessages subscribes to

469+ // SSE before fetching) inserts its message at the front of the insertion-ordered map,

470+ // and the merge above keeps that position — pinning a running message above the older

471+ // history that seed() inserts afterward. Restore chronological order by creation time

472+ // FIRST, so eviction below drops the genuinely-oldest entries: evictOldMessages()

473+ // removes from the map's front, which before reordering is the newest streamed message.

474+ if (reorderByTime()) changed = true

475+ if (evictOldMessages()) changed = true

476+ // Reset the pivot: everything just merged is now the baseline, so only parts/info

477+ // that stream in *after* this seed can outrank the next reconnect's snapshot. The

478+ // on-disk cache seed passes clearPivot = false: it runs *before* the authoritative

479+ // initial REST seed, so clearing here would strip pivot protection from SSE parts/info

480+ // that streamed in since subscribe, letting that REST seed regress them.

481+ if (clearPivot) {

482+ streamedSincePivot.clear()

483+ messageInfoUpdatedSincePivot.clear()

484+ }

485+ return changed

486+ }

487+

488+ /** Remove messages that were seeded from the on-disk cache ([cacheSeededIds]) but are

489+ * absent from the authoritative REST snapshot [rest] — i.e. deleted server-side while the

490+ * app was closed. Restricted to cache-seeded ids so a message added by a live SSE event

491+ * since subscribe (which the REST endpoint may not have indexed yet) is never pruned.

492+ * This is what actually removes ghosts on restart; the reconnect re-seed deliberately

493+ * keeps prune=false to avoid racing just-arrived SSE. Call under the same lock as [seed].

494+ * Returns true if anything was removed. */

495+ fun pruneStaleCacheSeeded(cacheSeededIds: Set<String>, rest: List<MessageWithParts>): Boolean {

496+ if (cacheSeededIds.isEmpty()) return false

497+ val restIds = rest.mapTo(mutableSetOf()) { it.info.id }

498+ var changed = false

499+ for (id in cacheSeededIds) {

500+ if (id !in restIds && messages.remove(id) != null) changed = true

501+ }

502+ return changed

503+ }

504+

505+ /** Resolve the map key for a seed entry. An UnknownMessage with an empty id (from an

506+ * unrecognized server role with no id field) was stored by handleMessageUpdated under a

507+ * synthetic key ("unknown-c<created>" or "unknown-h<hash>"); derive the same key here so

508+ * a REST seed merges onto the existing holder instead of missing it and inserting a

509+ * duplicate under key "". */

510+ private fun syntheticKeyFor(m: MessageWithParts): String =

511+ if (m.info.id.isEmpty() && m.info is UnknownMessage) {

512+ m.info.time?.created?.let { "unknown-c$it" } ?: "unknown-h${m.info.hashCode()}"

513+ } else {

514+ m.info.id

515+ }

516+

517+ /** Reorder the message map by message creation time (stable). Ties and entries with no

518+ * server time yet (e.g. a brand-new message still streaming and not in REST) keep their

519+ * relative order, so such a message stays last. Preserves each entry's map key so the

520+ * synthetic UnknownMessage keys aren't collapsed. Returns true if the order changed. */

521+ private fun reorderByTime(): Boolean {

522+ val entries = messages.entries.map { it.key to it.value }

523+ val sorted = entries.sortedBy { it.second.info.time?.created ?: Long.MAX_VALUE }

524+ // Detect a reordering by comparing keys positionally, instead of allocating two more

525+ // N-sized key lists just to compare them.

526+ var changed = false

527+ for (i in sorted.indices) {

528+ if (sorted[i].first != entries[i].first) { changed = true; break }

529+ }

530+ if (!changed) return false

531+ messages.clear()

532+ for ((k, v) in sorted) messages[k] = v

533+ return true

534+ }

535+

536+ /** Returns true if the state changed (and a new snapshot should be published). */

537+ fun reduce(sessionId: String, event: BusEvent): Boolean {

538+ return when (event) {

539+ is MessageUpdated -> handleMessageUpdated(sessionId, event)

540+

541+ is MessagePartUpdated -> {

542+ val part = event.properties.part

543+ val messageId = part.messageID ?: event.properties.messageID

544+ val partSession = part.sessionID ?: event.properties.sessionID

545+ when {

546+ messageId == null -> false

547+ partSession != null -> if (partSession == sessionId) upsertPart(messageId, part) else false

548+ // No session id anywhere on the event: a null session is NOT a wildcard

549+ // (mirroring isIdle/isError). Every open session's store sees the shared

550+ // event stream, so accepting it unconditionally would leak the part into

551+ // unrelated conversations (e.g. both panes in two-pane mode). Attribute it

552+ // only if this store already holds the parent message — MessageUpdated,

553+ // which always carries a session id, will have created it here first.

554+ else -> if (messages.containsKey(messageId)) upsertPart(messageId, part) else false

555+ }

556+ }

557+

558+ is MessagePartRemoved -> handlePartRemoved(sessionId, event)

559+

560+ is MessageRemoved -> handleMessageRemoved(sessionId, event)

561+

562+ else -> false

563+ }

564+ }

565+

566+ private fun handleMessageUpdated(sessionId: String, event: MessageUpdated): Boolean {

567+ val info = event.properties.info

568+ if (info.sessionID != sessionId) return false

569+ // An UnknownMessage with an empty id (e.g. from an unrecognized server role with no id

570+ // field) would collide with other such messages in the map. It carries no id, only

571+ // sessionID/time, so derive a synthetic key. Prefer the immutable creation timestamp: it's

572+ // stable across updates, so a later update to the SAME unknown message (whose `time.updated`

573+ // or `time.completed` changes) coalesces onto its holder via the existing==info guard below

574+ // instead of forking a duplicate — the failure mode a full-content hash has, since any

575+ // content change moves the hash. Distinct unknown messages still separate by their distinct

576+ // creation times; only when even `created` is absent do we fall back to the content hash.

577+ val key = if (info.id.isEmpty() && info is UnknownMessage) {

578+ info.time?.created?.let { "unknown-c$it" } ?: "unknown-h${info.hashCode()}"

579+ } else {

580+ info.id

581+ }

582+ val existing = messages[key]

583+ // A server re-sending byte-identical info is a no-op: skip it so we don't publish a

584+ // redundant snapshot (mirrors upsertPart's identical-part guard).

585+ if (existing != null && existing.info == info) return false

586+ if (existing == null) {

587+ messages[key] = Holder(info, LinkedHashMap())

588+ } else {

589+ existing.info = info

590+ existing.invalidate()

591+ }

592+ // Record that this message's info streamed in live, so a re-seed after a reconnect knows

593+ // it's newer than the REST snapshot and keeps it (see seed()/beginReseed()).

594+ messageInfoUpdatedSincePivot.add(key)

595+ if (existing == null) evictOldMessages()

596+ return true

597+ }

598+

599+ /** Returns false if [eventSession] is non-null and doesn't match [sessionId]. */

600+ private fun matchesSession(eventSession: String?, sessionId: String): Boolean =

601+ eventSession == null || eventSession == sessionId

602+

603+ private fun handlePartRemoved(sessionId: String, event: MessagePartRemoved): Boolean {

604+ val messageId = event.properties.messageID ?: return false

605+ val partId = event.properties.partID ?: return false

606+ if (!matchesSession(event.properties.sessionID, sessionId)) return false

607+ return removePart(messageId, partId)

608+ }

609+

610+ private fun handleMessageRemoved(sessionId: String, event: MessageRemoved): Boolean {

611+ val id = event.properties.messageID ?: return false

612+ if (!matchesSession(event.properties.sessionID, sessionId)) return false

613+ val removed = messages.remove(id) ?: return false

614+ messageInfoUpdatedSincePivot.remove(id)

615+ removed.parts.keys.forEach { streamedSincePivot.remove(it) }

616+ return true

617+ }

618+

619+ private fun upsertPart(messageId: String, part: Part): Boolean {

620+ val current = messages[messageId]

621+ if (current != null) {

622+ // O(1) map lookup + put, vs the former O(P) indexOfFirst scan and full-list copy

623+ // on every streamed token. A LinkedHashMap re-put keeps the part's original

624+ // position (replace-in-place); a new id is appended — matching the old list order.

625+ if (current.parts[part.id] == part) return false

626+ current.parts[part.id] = part

627+ current.invalidate()

628+ } else {

629+ val parts = LinkedHashMap<String, Part>()

630+ parts[part.id] = part

631+ messages[messageId] = Holder(

632+ info = UnknownMessage(id = messageId, sessionID = part.sessionID ?: ""),

633+ parts = parts,

634+ )

635+ }

636+ // Record that this part streamed in, so a re-seed after a reconnect knows it's

637+ // newer than the REST snapshot and keeps it (see seed()/beginReseed()).

638+ streamedSincePivot.add(part.id)

639+ if (current == null) evictOldMessages()

640+ return true

641+ }

642+

643+ private fun removePart(messageId: String, partId: String): Boolean {

644+ val current = messages[messageId] ?: return false

645+ if (current.parts.remove(partId) == null) return false

646+ // Drop the pivot entry too so the set doesn't accumulate ids of removed parts for

647+ // the rest of the session (it's otherwise only cleared on reseed/eviction). No

648+ // correctness impact today — a stale entry just falls back to the REST snapshot's

649+ // version in seed() — but keeping it symmetric with handleMessageRemoved/eviction

650+ // bounds the set's growth over a long-lived session.

651+ streamedSincePivot.remove(partId)

652+ current.invalidate()

653+ return true

654+ }

655+

656+ /** Evict the oldest messages when the store exceeds [maxMessages], keeping memory bounded.

657+ * Returns true if any messages were evicted. */

658+ private fun evictOldMessages(): Boolean {

659+ var evicted = false

660+ while (messages.size > maxMessages) {

661+ val oldestKey = messages.keys.iterator().next()

662+ val removed = messages.remove(oldestKey)

663+ // Prune the evicted message's pivot bookkeeping so these sets don't grow

664+ // unbounded over a long-running session that never reconnects (they're only

665+ // otherwise cleared on reseed/seed).

666+ messageInfoUpdatedSincePivot.remove(oldestKey)

667+ removed?.parts?.keys?.forEach { streamedSincePivot.remove(it) }

668+ evicted = true

669+ }

670+ return evicted

671+ }

672+}

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+1552

@@ -0,0 +1,1552 @@

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+ runCatching { _activeConnection.value?.close() }

669+ _activeConnection.value = null

670+ closed = true

671+ }

672+ }

673+ // If the timeout fired, force-clear the StateFlow so observers see no

674+ // connection. The stuck connection (if any) is closed below, outside the

675+ // mutex, so a slow close() can't ANR — its scope is cancelled and the JVM

676+ // exit reaps any remaining sockets.

677+ _activeConnection.value = null

678+ }

679+ if (!closed && stuck != null) {

680+ // The timeout path fired (the locked close didn't complete). Cancel the

681+ // stuck connection's scope directly. close() suspends (scopeJob.join), so

682+ // wrap in a bounded runBlocking that can't ANR — at this point the app is

683+ // shutting down, so reaping is best-effort.

684+ runCatching {

685+ kotlinx.coroutines.runBlocking {

686+ kotlinx.coroutines.withTimeoutOrNull(1_000) { stuck.close() }

687+ }

688+ }

689+ }

690+ val cm = appContext?.getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager

691+ networkCallback?.let { runCatching { cm?.unregisterNetworkCallback(it) } }

692+ if (!skipInit) soy.iko.opencode.data.repo.CrashLogger.get(appContext!!).shutdown()

693+ if (!skipInit) draftStore.shutdown()

694+ }

695+

696+ /**

697+ * Watch the SSE bus for new message activity and badge any session that isn't

698+ * currently open. This powers the unread dot on the session list so the user can

699+ * tell which conversations got a reply while they were elsewhere.

700+ *

701+ * Uses [flatMapLatest] so a server switch (which replaces the active connection)

702+ * re-subscribes to the new event stream and drops the old one.

703+ */

704+ @OptIn(ExperimentalCoroutinesApi::class)

705+ private fun observeMessageActivity() {

706+ appScope.launch {

707+ // Retry the observer if it fails for any reason (transient flow exception,

708+ // cancellation due to scope issues). Without this, a single failure would

709+ // permanently disable unread tracking and completion notifications.

710+ while (isActive) {

711+ runCatchingCancellable {

712+ activeConnection

713+ .flatMapLatest { conn ->

714+ // Capture the originating connection so notification coroutines

715+ // resolve titles and route permission responses against THIS

716+ // server, not whichever happens to be active when they resume.

717+ // A server switch during a listSessions() round-trip would

718+ // otherwise resolve the title (or POST the permission reply)

719+ // against the new server, where the session/permission doesn't

720+ // exist — showing an opaque id or silently losing the reply.

721+ conn?.events?.events?.map { conn to it } ?: emptyFlow()

722+ }

723+ .collect { (conn, event) ->

724+ // A permission request needs the user's approval. Post a heads-up

725+ // notification (with Allow/Reject actions) unless the user is actively

726+ // viewing this session, where the in-app permission dialog handles it.

727+ if (event is PermissionUpdated) {

728+ val psid = event.properties.sessionID.takeIf { it.isNotBlank() } ?: return@collect

729+ if (!isActivelyViewing(psid)) appScope.launch { notifyPermission(event.properties, conn) }

730+ return@collect

731+ }

732+ // The permission was answered (in-app, from the notification, or

733+ // auto-resolved): clear its heads-up notification.

734+ if (event is PermissionReplied) {

735+ val psid = event.properties.sessionID?.takeIf { it.isNotBlank() } ?: return@collect

736+ appContext?.let { SessionNotifications.cancelPermission(it, psid) }

737+ return@collect

738+ }

739+ // A run failed. Clear its active-run tracking (an error isn't always

740+ // followed by a SessionIdle) and notify unless it's being viewed.

741+ if (event is SessionError) {

742+ val esid = event.properties.sessionID ?: return@collect

743+ val wasRunning = synchronized(activeRuns) {

744+ activeRuns.remove(esid).also { removed ->

745+ if (removed) publishRunState()

746+ }

747+ }

748+ if (wasRunning && !isActivelyViewing(esid)) {

749+ appScope.launch { notifySessionError(esid, conn.repository, conn.profile.id) }

750+ }

751+ return@collect

752+ }

753+ // SessionIdle is not "message activity" (don't badge as unread)

754+ // but signals a run finished — fire a completion notification if the

755+ // session isn't currently being viewed and was actively streaming.

756+ if (event is SessionIdle) {

757+ val idleSid = event.properties.sessionID ?: return@collect

758+ // Clear the run state unconditionally — even for the session on

759+ // screen. Gating the removal on `idleSid != currentSession` (as

760+ // this once did) leaks the id in activeRuns and pins anyRunActive

761+ // true forever whenever a run finishes while being viewed. Only

762+ // the completion *notification* is suppressed for the viewed one.

763+ val wasRunning = synchronized(activeRuns) {

764+ activeRuns.remove(idleSid).also { removed ->

765+ if (removed) publishRunState()

766+ }

767+ }

768+ // Clear the progress text when the run finishes.

769+ _runProgressText.value = null

770+ if (wasRunning && !isActivelyViewing(idleSid)) {

771+ // Fire this off the collector's coroutine: notifySessionCompleted

772+ // does a network listSessions() to resolve the title, and blocking

773+ // the shared-event collector here would stall the SharedFlow,

774+ // overflowing its DROP_OLDEST buffer and silently dropping live

775+ // parts/updates for every other subscriber (e.g. the message reducer).

776+ appScope.launch { notifySessionCompleted(idleSid, conn.repository, conn.profile.id) }

777+ }

778+ return@collect

779+ }

780+ // Track the agent's task-plan progress (from todowrite tool calls) so the

781+ // foreground-service notification can show "Step 2 of 5" instead of just a

782+ // chronometer. The todowrite tool sends the full plan on every call, so the

783+ // latest call's input is a complete snapshot.

784+ if (event is MessagePartUpdated) {

785+ val part = event.properties.part

786+ if (part is ToolPart && part.tool.equals(TODO_WRITE_TOOL, ignoreCase = true)) {

787+ val todos = parseTodos(part.state.inputElement())

788+ if (todos.isNotEmpty()) {

789+ val completed = todos.count { it.statusEnum() == TodoStatus.COMPLETED }

790+ _runProgressText.value = appContext?.getString(

791+ soy.iko.opencode.R.string.notif_running_progress,

792+ completed + 1,

793+ todos.size,

794+ )

795+ }

796+ }

797+ }

798+ val sid = sessionOf(event) ?: return@collect

799+ // Re-read currentSession here, right before mutating the badge state:

800+ // the user may have opened this session between when this event was

801+ // enqueued and now (setCurrentSession clears its badge and dedup set).

802+ // A stale earlier check would race a badge — and a dedup entry — back

803+ // in for the session that's actually on screen.

804+ if (sid != _currentSession.value) {

805+ // Track the message id in the dedup set for *every* session (muted or

806+ // not), so unmuting can't re-count messages that arrived while muted.

807+ // The visible badge increment below is gated on !muted so a muted

808+ // conversation doesn't interrupt, but the dedup tracking must not be

809+ // — otherwise the first event after unmute for an already-seen message

810+ // id would pass the counted.add() check (empty set) and re-increment.

811+ val messageId = messageIdOfEvent(event)

812+ val counted = unreadMessageIds.getOrPut(sid) {

813+ java.util.Collections.synchronizedSet(mutableSetOf())

814+ }

815+ val isNewMessage = messageId == null || counted.add(messageId)

816+ if (isNewMessage && sid !in _mutedSessions.value) {

817+ // Skip the unread badge for muted sessions — the count is still

818+ // tracked in unreadMessageIds (so unmuting can't re-count the

819+ // same messages), but the visible badge is suppressed so a muted

820+ // conversation doesn't interrupt. The completion notification is

821+ // also gated on isSessionMuted (see notifySessionCompleted).

822+ _unread.update { current ->

823+ // Guard again inside the atomic update lambda so a retry

824+ // (or an open that landed just now) can't reintroduce the

825+ // badge for the session on screen.

826+ if (sid == _currentSession.value) current

827+ else current + (sid to (current[sid] ?: 0) + 1)

828+ }

829+ }

830+ }

831+ // Track sessions actively streaming so we know which idle events

832+ // represent a finished run worth notifying about.

833+ if (isLiveRunActivity(event)) {

834+ // add() returns true only when the id is genuinely new. Only republish

835+ // the run-state snapshot in that case: a continuously-streaming session

836+ // re-adds its id on every token (hundreds/sec), and republishing each

837+ // time allocates a fresh Set via toSet() + writes two StateFlows under

838+ // the monitor — pure overhead since the set membership didn't change.

839+ // The access-order refresh from LinkedHashSet.add still happens (keeping

840+ // the session from being evicted by a reconnect sweep); we just skip the

841+ // O(set size) snapshot + StateFlow writes when nothing changed.

842+ synchronized(activeRuns) {

843+ if (activeRuns.add(sid)) {

844+ publishRunState()

845+ }

846+ }

847+ }

848+ } }.onFailure { Log.w("AppContainer", "Message activity observer failed, will retry: ${safeExceptionSummary(it)}") }

849+ if (!isActive) break

850+ delay(NetworkConfig.observerRetryDelayMs)

851+ }

852+ }

853+ }

854+

855+ /** True if [event] is live streaming activity worth tracking as an active run. A

856+ * trailing message.updated that lands *after* the run finished (final cost/token totals,

857+ * carrying a completion time) is NOT live streaming: with no further SessionIdle to

858+ * follow it, re-adding the session would pin anyRunActive true indefinitely. */

859+ private fun isLiveRunActivity(event: BusEvent): Boolean {

860+ if (event !is MessagePartUpdated && event !is MessageUpdated) return false

861+ // For MessageUpdated, only an in-flight *assistant* message counts as live activity.

862+ // A UserMessage or UnknownMessage update (e.g. a metadata refresh of an existing user

863+ // message) would otherwise add the session to activeRuns with no following SessionIdle

864+ // to clear it — pinning anyRunActive true and the foreground notification indefinitely.

865+ // Mirrors SessionRepository.isRunActivity's guard exactly.

866+ if (event is MessageUpdated) {

867+ val info = event.properties.info

868+ return info is AssistantMessage && !info.isComplete && info.error == null

869+ }

870+ // A step-finish part is the trailing completion marker for a run (it carries the

871+ // final cost/token totals) and arrives after the last stream delta. Like a completed

872+ // message.updated, treating it as live would re-add the session to activeRuns with no

873+ // following SessionIdle to clear it — pinning anyRunActive true indefinitely when such

874+ // a part is replayed/reordered after the run already went idle.

875+ val part = (event as MessagePartUpdated).properties.part

876+ return part !is StepFinishPart

877+ }

878+

879+ /** Snapshot [activeRuns] into [_runningSessionIds] and derive [_anyRunActive] from it.

880+ * MUST be called under the [activeRuns] monitor so the published flag and snapshot can't

881+ * diverge from the set a concurrent SSE add()/remove() is mutating — the same invariant

882+ * [connectLocked]/[teardownActiveLocked] rely on. */

883+ private fun publishRunState() {

884+ _anyRunActive.value = activeRuns.isNotEmpty()

885+ _runningSessionIds.value = activeRuns.toSet()

886+ }

887+

888+ /** Session ids currently streaming an assistant run (best-effort, in-process). Backed by

889+ * an access-order [java.util.LinkedHashMap] so re-adding an already-present id on each

890+ * streaming event refreshes its recency (a plain LinkedHashSet.add is a no-op that does

891+ * NOT reorder). Entries are drained by [SessionIdle] (and cleared wholesale on reconnect

892+ * reconcile); we intentionally do NOT cap the set, because evicting the eldest would drop

893+ * its completion notification when its SessionIdle eventually arrives — a busy server

894+ * with many concurrent runs is still bounded by the server's own concurrency, so growth

895+ * is not unbounded in practice. */

896+ private val activeRuns: MutableSet<String> = java.util.Collections.synchronizedSet(

897+ java.util.Collections.newSetFromMap(java.util.LinkedHashMap<String, Boolean>(16, 0.75f, true)),

898+ )

899+

900+ /** Per non-viewed session, the set of message ids already reflected in its unread

901+ * count. De-duplicates the many streaming events that share one message id so the

902+ * badge counts messages, not deltas. Cleared when a session is viewed or on connect. */

903+ private val unreadMessageIds = java.util.concurrent.ConcurrentHashMap<String, MutableSet<String>>()

904+

905+ /** Guards connect/disconnect so concurrent callers can't leak an old connection. */

906+ private val connectionMutex = Mutex()

907+

908+ /** Only persist the `lastUsed` timestamp if it's older than this, to avoid

909+ * a DataStore + encrypted-prefs write on every rapid reconnect. */

910+ private companion object {

911+ const val LAST_USED_SAVE_THRESHOLD_MS = 60_000L

912+ }

913+

914+ /** Resolve the human-readable title for [sessionId] (best-effort), falling back to the id.

915+ * Uses [originRepo] — the repository of the connection that emitted the event — so a

916+ * server switch during the listSessions() round-trip doesn't resolve the title against

917+ * an unrelated server (showing an opaque id, or worse, a colliding session's title). */

918+ private suspend fun resolveSessionTitle(sessionId: String, originRepo: SessionRepository): String =

919+ runCatchingCancellable {

920+ originRepo.listSessions()?.firstOrNull { it.id == sessionId }?.displayTitle

921+ }.getOrNull() ?: sessionId

922+

923+ /** Resolve the title for [sessionId] (best-effort) and post a completion notification.

924+ * [originProfileId] is the id of the server that ran the session; it's embedded in the

925+ * inline-reply action so a follow-up routes back to THIS server even after the user switches

926+ * connections (mirrors [notifyPermission]). */

927+ private suspend fun notifySessionCompleted(sessionId: String, originRepo: SessionRepository, originProfileId: String) {

928+ val title = resolveSessionTitle(sessionId, originRepo)

929+ // Re-check viewing right before posting: the call site checks !isActivelyViewing(sid)

930+ // at event time, but resolveSessionTitle() suspends on a listSessions() round-trip.

931+ // If the user opened the session in that gap, setCurrentSession already cancelled the

932+ // prior notification — posting a fresh one here would leave a "session ready" heads-up

933+ // lingering while they're already looking at the finished run.

934+ if (isActivelyViewing(sessionId)) return

935+ // Suppress the completion notification for muted sessions — the whole point of muting

936+ // is that a noisy conversation doesn't interrupt.

937+ if (sessionId in _mutedSessions.value) return

938+ appContext?.let { SessionNotifications.postCompleted(it, sessionId, title, originProfileId) }

939+ }

940+

941+ /** Post a heads-up permission notification for [permission], resolving its session title.

942+ * [originConn] is the connection that emitted the permission event — its profile id is

943+ * embedded in the notification so the receiver routes the response back to THIS server. */

944+ private suspend fun notifyPermission(permission: Permission, originConn: OpencodeConnection) {

945+ val sessionId = permission.sessionID.takeIf { it.isNotBlank() } ?: return

946+ val title = resolveSessionTitle(sessionId, originConn.repository)

947+ // Re-check viewing just before posting — see notifySessionCompleted for the race.

948+ if (isActivelyViewing(sessionId)) return

949+ appContext?.let { SessionNotifications.postPermission(it, permission, title, originConn.profile.id) }

950+ }

951+

952+ /** Post an error notification for a failed background run. [originProfileId] is embedded

953+ * in the tap intent so the session opens under the server that ran it, not whichever

954+ * is active when the user taps — mirroring [notifySessionCompleted]. */

955+ private suspend fun notifySessionError(sessionId: String, originRepo: SessionRepository, originProfileId: String) {

956+ val title = resolveSessionTitle(sessionId, originRepo)

957+ // Re-check viewing just before posting — see notifySessionCompleted for the race.

958+ if (isActivelyViewing(sessionId)) return

959+ appContext?.let { SessionNotifications.postError(it, sessionId, title, originProfileId) }

960+ }

961+

962+ /** Respond to a permission from a notification action (Allow once / Always / Reject),

963+ * off any UI. Runs on the process-lived app scope; [onDone] fires when the call resolves

964+ * so the receiver's goAsync() result can finish. Its Boolean is true only when a live

965+ * connection existed AND respondPermission succeeded — the receiver uses it to decide

966+ * whether to dismiss the notification. A missing connection makes the respond a no-op,

967+ * so it must report failure (not success) rather than let the notification vanish with

968+ * the tool left unanswered.

969+ *

970+ * [profileId] is the id of the server that posted the permission request (embedded in

971+ * the notification's PendingIntent). If it doesn't match the currently active

972+ * connection's profile, the response is NOT sent: posting it to a different server

973+ * would 404 (treated as "already resolved" success by respondPermission), dismissing

974+ * the notification while the original server's tool stays paused forever. Reporting

975+ * failure instead leaves the notification up so the user can switch back and retry. */

976+ open fun respondToPermissionFromNotification(

977+ sessionId: String,

978+ permissionId: String,

979+ response: PermissionResponse,

980+ profileId: String?,

981+ onDone: (Boolean) -> Unit,

982+ ) {

983+ appScope.launch {

984+ // Guarantee onDone (so the BroadcastReceiver's goAsync() finishes) even if the

985+ // scope is cancelled mid-call (process shutdown cancels appScope first). Without

986+ // this, a cancelled scope leaves pending.finish() never called → a receiver ANR

987+ // and the permission response silently lost.

988+ var success = false

989+ try {

990+ success = runCatchingCancellable {

991+ val conn = activeConnection.value ?: return@runCatchingCancellable false

992+ // Route to the originating server only. A mismatch means the user

993+ // switched servers while the permission was pending; sending the reply

994+ // to the wrong server would be silently swallowed as a 404-success.

995+ if (profileId != null && conn.profile.id != profileId) return@runCatchingCancellable false

996+ conn.api.respondPermission(sessionId, permissionId, response)

997+ true

998+ }.onFailure {

999+ Log.w("AppContainer", "notif permission respond failed: ${safeExceptionSummary(it)}")

1000+ }.getOrDefault(false)

1001+ } finally {

1002+ onDone(success)

1003+ }

1004+ }

1005+ }

1006+

1007+ /** Send a follow-up prompt from a notification's inline reply, off any UI. Uses the

1008+ * server's default model/agent. Routes through the durable [outboxStore] — the same path

1009+ * the in-app composer uses ([soy.iko.opencode.ui.chat.ChatViewModel.enqueueOffline]) —

1010+ * rather than a direct repository send, so a reply composed while disconnected survives to

1011+ * be flushed on reconnect instead of being silently dropped. [flushOutbox] nudges an

1012+ * immediate send when a connection is live, so an online reply still goes out now. [onDone]

1013+ * reports whether the reply was durably enqueued so the receiver only dismisses the

1014+ * notification on success. */

1015+ open fun sendPromptFromNotification(sessionId: String, text: String, originProfileId: String?, onDone: (Boolean) -> Unit) {

1016+ appScope.launch {

1017+ // Guarantee onDone (so the BroadcastReceiver's goAsync() finishes) even if the

1018+ // scope is cancelled mid-call — see respondToPermissionFromNotification above.

1019+ var enqueued = false

1020+ try {

1021+ // Attribute to the profile that POSTED the notification (embedded in the reply

1022+ // intent) so the follow-up is always enqueued against the server that owns

1023+ // [sessionId] — never whichever server happens to be active now, which would POST

1024+ // A's session id to B, 404, and silently drop the reply. Fall back to the active/

1025+ // most-recent profile only for a legacy intent that predates the embedded id.

1026+ val profileId = originProfileId

1027+ ?: activeConnection.value?.profile?.id

1028+ ?: runCatchingCancellable { profileStore.profiles.first().firstOrNull()?.id }.getOrNull()

1029+ enqueued = if (profileId == null) {

1030+ false

1031+ } else {

1032+ runCatchingCancellable {

1033+ outboxStore.enqueue(

1034+ OutboxMessage(

1035+ id = java.util.UUID.randomUUID().toString(),

1036+ profileId = profileId,

1037+ sessionId = sessionId,

1038+ text = text,

1039+ model = null,

1040+ createdAt = System.currentTimeMillis(),

1041+ ),

1042+ )

1043+ }.onFailure {

1044+ Log.w("AppContainer", "notif reply enqueue failed: ${safeExceptionSummary(it)}")

1045+ }.isSuccess

1046+ }

1047+ if (enqueued) flushOutbox()

1048+ } finally {

1049+ onDone(enqueued)

1050+ }

1051+ }

1052+ }

1053+

1054+ /** Abort the active run for [sessionId] from a notification Stop action. Routes to the

1055+ * originating profile only — sending the abort to a different server would 404 (silently

1056+ * swallowed) and leave the original run stranded. A profile mismatch reports failure so the

1057+ * notification stays up and the user can switch back, mirroring

1058+ * [respondToPermissionFromNotification]'s routing guard. Runs on the app scope so it

1059+ * survives the BroadcastReceiver's lifetime. */

1060+ open fun abortRunFromNotification(sessionId: String, originProfileId: String?, onDone: (Boolean) -> Unit) {

1061+ appScope.launch {

1062+ var success = false

1063+ try {

1064+ val conn = activeConnection.value?.takeIf {

1065+ originProfileId == null || it.profile.id == originProfileId

1066+ }

1067+ if (conn != null) {

1068+ success = runCatchingCancellable { conn.repository.abort(sessionId) }.isSuccess

1069+ }

1070+ } finally {

1071+ onDone(success)

1072+ }

1073+ }

1074+ }

1075+

1076+ /**

1077+ * Retry the last user prompt for [sessionId] from an error notification's "Retry last"

1078+ * action. Fetches the session's messages, re-sends the most recent user prompt, and

1079+ * cancels the error notification on success. Routes to the originating profile's

1080+ * connection only — sending the retry to a different server would 404 or start a fresh

1081+ * run on an unrelated session id. A profile mismatch reports failure so the notification

1082+ * stays up and the user can switch back, mirroring [respondToPermissionFromNotification]'s

1083+ * routing guard. A no-op (reported as false) when there's no connection or no prior prompt.

1084+ */

1085+ open fun retryLastFromNotification(sessionId: String, originProfileId: String?, onDone: (Boolean) -> Unit) {

1086+ appScope.launch {

1087+ var success = false

1088+ try {

1089+ val conn = activeConnection.value?.takeIf {

1090+ originProfileId == null || it.profile.id == originProfileId

1091+ }

1092+ if (conn != null) {

1093+ success = runCatchingCancellable {

1094+ val messages = conn.api.listMessages(sessionId)

1095+ val lastPrompt = messages

1096+ .lastOrNull { it.info is soy.iko.opencode.data.model.UserMessage }

1097+ ?.parts

1098+ ?.filterIsInstance<soy.iko.opencode.data.model.TextPart>()

1099+ ?.joinToString("\n\n") { it.text }

1100+ ?.takeIf { it.isNotBlank() }

1101+ if (lastPrompt != null) {

1102+ // model=null lets the server reuse the session's current model; we

1103+ // don't know the originally-selected model from a notification context.

1104+ conn.repository.sendPrompt(sessionId, lastPrompt, model = null)

1105+ true

1106+ } else {

1107+ false

1108+ }

1109+ }.isSuccess

1110+ }

1111+ } finally {

1112+ onDone(success)

1113+ }

1114+ }

1115+ }

1116+

1117+ /** Extract the session id an event pertains to, for message-activity events. */

1118+ private fun sessionOf(event: BusEvent): String? = sessionOfEvent(event)

1119+

1120+ /**

1121+ * On cold start, transparently reconnect to the most recently used server so a

1122+ * returning user lands in their session list instead of the empty server screen.

1123+ */

1124+ private suspend fun autoConnect() {

1125+ val recent = runCatchingCancellable { profileStore.profiles.first() }

1126+ .getOrDefault(emptyList())

1127+ .firstOrNull() ?: return

1128+ // The profile read above suspends on DataStore. A manual connect() to a different

1129+ // server during that window establishes a connection the user explicitly chose; we must

1130+ // not clobber it by connecting to `recent` on top. connectIfIdle() checks "is anything

1131+ // active?" and connects atomically under connectionMutex, returning null if the cold-start

1132+ // slot was already taken — closing the TOCTOU window an unlocked null-check plus connect()'s

1133+ // unconditional close would leave. (disconnectIf below similarly guards the failed-ping

1134+ // teardown by identity.)

1135+ _reconnecting.value = true

1136+ var conn: OpencodeConnection? = null

1137+ try {

1138+ val ok = runCatchingCancellable {

1139+ conn = connectIfIdle(recent) ?: return@runCatchingCancellable false

1140+ conn!!.api.ping()

1141+ true

1142+ }.getOrDefault(false)

1143+ when {

1144+ conn == null -> Unit // slot already taken by a manual connect — leave it be

1145+ ok -> _autoConnectDone.value = true

1146+ else -> disconnectIf(conn!!)

1147+ }

1148+ } finally {

1149+ // Reset in a finally so a CancellationException (e.g. scope cancelled during

1150+ // shutdown) can't leave the flag pinned true — runCatchingCancellable rethrows it,

1151+ // skipping the line below the try block.

1152+ _reconnecting.value = false

1153+ }

1154+ }

1155+

1156+ /**

1157+ * When the device regains connectivity, nudge the active SSE stream to reconnect

1158+ * immediately instead of waiting out the exponential backoff.

1159+ */

1160+ private val networkCallback: ConnectivityManager.NetworkCallback? = registerNetworkMonitor()

1161+

1162+ private fun registerNetworkMonitor(): ConnectivityManager.NetworkCallback? {

1163+ if (appContext == null) return null

1164+ val cm = appContext!!.getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager

1165+ ?: return null

1166+ // Seed the online state from the current active network so the indicator is

1167+ // correct on cold start rather than defaulting to "online" until a callback fires.

1168+ _isOnline.value = runCatching { cm.activeNetwork != null }.getOrDefault(true)

1169+ val callback = object : ConnectivityManager.NetworkCallback() {

1170+ override fun onAvailable(network: Network) { _isOnline.value = true; activeConnection.value?.events?.triggerReconnect() }

1171+ // A matched (internet-capable) network was lost. Don't eagerly flip offline: during a

1172+ // Wi-Fi→cellular handoff onLost(WiFi) fires before onAvailable(cellular) and

1173+ // cm.activeNetwork is transiently null in that window — flashing offline there would

1174+ // skip outbox flushing and blink the indicator. Instead re-check activeNetwork after a

1175+ // short grace period and only report offline if there's still no active network.

1176+ //

1177+ // This MUST live in onLost, not onUnavailable: onUnavailable is delivered only for

1178+ // requestNetwork() with a timeout, never for registerNetworkCallback() — relying on it

1179+ // (as this once did) meant offline was never detected after the first onAvailable.

1180+ override fun onLost(network: Network) {

1181+ appScope.launch {

1182+ delay(NetworkConfig.networkOfflineGraceMs)

1183+ _isOnline.value = runCatching { cm.activeNetwork != null }.getOrDefault(true)

1184+ }

1185+ }

1186+ }

1187+ // Only match networks that actually provide internet — a capability-less request

1188+ // fires onAvailable for transports that can't reach the server (and would trigger

1189+ // spurious reconnects), so require NET_CAPABILITY_INTERNET.

1190+ val request = NetworkRequest.Builder()

1191+ .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)

1192+ .build()

1193+ runCatching { cm.registerNetworkCallback(request, callback) }

1194+ .onFailure { Log.w("AppContainer", "Failed to register network callback", it) }

1195+ return callback

1196+ }

1197+

1198+ /** Open (or re-open) a connection to [profile], replacing any current one.

1199+ * Only persists the updated `lastUsed` timestamp if it's stale (older than a

1200+ * minute), so rapid reconnect storms don't each trigger a DataStore write. */

1201+ open suspend fun connect(profile: ServerProfile): OpencodeConnection =

1202+ connectionMutex.withLock { connectLocked(profile) }

1203+

1204+ /** Connect to the profile with [profileId], looking it up from [profileStore]. Returns

1205+ * true on success, false if the profile wasn't found or connect threw. Used by the

1206+ * notification body-tap path to route a session open back to the originating server. */

1207+ open suspend fun connectByProfileId(profileId: String): Boolean {

1208+ val profile = profileStore.profiles.first().find { it.id == profileId } ?: return false

1209+ return runCatchingCancellable { connect(profile) }.isSuccess

1210+ }

1211+

1212+ /** Connect to [profile] only if nothing is currently active, checking-and-connecting

1213+ * atomically under [connectionMutex]. Returns null (touching nothing) when a connection is

1214+ * already active, so autoConnect() can't clobber a manual connect() the user made during its

1215+ * suspending profile read — closing the TOCTOU window an unlocked null-check would leave. */

1216+ private suspend fun connectIfIdle(profile: ServerProfile): OpencodeConnection? =

1217+ connectionMutex.withLock {

1218+ if (_activeConnection.value != null) null else connectLocked(profile)

1219+ }

1220+

1221+ /** Build and install a connection to [profile], replacing any current one. Caller MUST hold

1222+ * [connectionMutex]. */

1223+ private suspend fun connectLocked(profile: ServerProfile): OpencodeConnection {

1224+ // Capture the previous profile id before closing, so we can preserve unread badges

1225+ // when reconnecting to the same server — a brief network blip or manual reconnect

1226+ // shouldn't erase "5 unread". Only a genuine server switch clears them.

1227+ val previousProfileId = _activeConnection.value?.profile?.id

1228+ _activeConnection.value?.close()

1229+ _activeConnection.value = null

1230+ // Mutate the run set and its derived flag together under activeRuns' monitor: the SSE

1231+ // event handler adds ids under the same lock, so an unlocked clear() here could

1232+ // interleave with an add()+flag=true and leave _anyRunActive pinned true with a torn-

1233+ // down connection and no SessionIdle to clear it — a stuck foreground service.

1234+ synchronized(activeRuns) {

1235+ activeRuns.clear()

1236+ publishRunState()

1237+ }

1238+ if (previousProfileId != profile.id) {

1239+ _unread.value = emptyMap()

1240+ unreadMessageIds.clear()

1241+ }

1242+ val now = System.currentTimeMillis()

1243+ val resolved = profileStore.resolve(profile)

1244+ val needsSave = (now - resolved.lastUsed) > LAST_USED_SAVE_THRESHOLD_MS

1245+ val finalProfile = if (needsSave) resolved.copy(lastUsed = now) else resolved

1246+ if (needsSave) profileStore.save(finalProfile)

1247+ return OpencodeConnection(finalProfile, messageCacheStore).also { _activeConnection.value = it }

1248+ }

1249+

1250+ open suspend fun disconnect() {

1251+ // Acquire the connection mutex so disconnect is serialized with connect().

1252+ // Previously this was fire-and-forget (launch on appScope), which raced with

1253+ // a subsequent connect(): connect() could acquire the mutex, create a new

1254+ // connection, and then the pending disconnect() would close it.

1255+ connectionMutex.withLock { teardownActiveLocked() }

1256+ }

1257+

1258+ /** Tear down [expected] only if it is still the active connection, with the identity

1259+ * check performed *under* the mutex. A caller that checks `activeConnection.value === x`

1260+ * itself and then calls [disconnect] has a TOCTOU race: a concurrent connect() to a

1261+ * different server can replace the active connection in the gap, and [disconnect] would

1262+ * then close that new connection. autoConnect()'s failed-ping teardown uses this. */

1263+ private suspend fun disconnectIf(expected: OpencodeConnection) {

1264+ connectionMutex.withLock {

1265+ if (_activeConnection.value === expected) teardownActiveLocked()

1266+ }

1267+ }

1268+

1269+ /** Close and reset the active connection. Caller MUST hold [connectionMutex]. */

1270+ private suspend fun teardownActiveLocked() {

1271+ _activeConnection.value?.close()

1272+ _activeConnection.value = null

1273+ // Reset run/unread state on disconnect too. With no SSE stream there's no

1274+ // SessionIdle to drain activeRuns, so without this the working indicator

1275+ // (anyRunActive) and unread badges would stay pinned until the next connect().

1276+ // Mutate under activeRuns' monitor (see connect()) so a concurrent SSE add() can't

1277+ // re-pin _anyRunActive after the clear.

1278+ synchronized(activeRuns) {

1279+ activeRuns.clear()

1280+ publishRunState()

1281+ }

1282+ _unread.value = emptyMap()

1283+ unreadMessageIds.clear()

1284+ }

1285+

1286+ /** Deferred profile deletions keyed by id, run on the process-lived [appScope] (not a

1287+ * ViewModel scope) so navigating away during the undo window still commits the delete

1288+ * instead of silently cancelling it — mirroring [CrashLogger.scheduleDelete]. */

1289+ private val pendingProfileDeletes = java.util.concurrent.ConcurrentHashMap<String, Job>()

1290+

1291+ /**

1292+ * Schedule the profile [id] for deletion after [delayMs], cancellable via

1293+ * [cancelProfileDelete] (the Undo action). [onDeleted]/[onError] run on [appScope]

1294+ * after the delete resolves so the caller can clear its optimistic-hide state. A

1295+ * repeated schedule for the same id replaces the prior timer.

1296+ */

1297+ open fun scheduleProfileDelete(

1298+ id: String,

1299+ delayMs: Long,

1300+ onDeleted: () -> Unit,

1301+ onError: (Throwable) -> Unit,

1302+ ) {

1303+ val job = appScope.launch {

1304+ delay(delayMs)

1305+ // Claim the delete by removing our own entry BEFORE committing it — the atomic

1306+ // remove is the sync point with cancelProfileDelete. Losing the race (an undo

1307+ // removed us first) means we skip, honouring cancel's `true`; deleting first

1308+ // would let a cancel land in the gap and falsely report undo of a gone profile.

1309+ // remove(id, thisJob) also no-ops for a stale job after a reschedule.

1310+ val claimed = coroutineContext[Job]?.let { pendingProfileDeletes.remove(id, it) } == true

1311+ if (!claimed) return@launch

1312+ runCatchingCancellable { profileStore.delete(id) }

1313+ .onSuccess { onDeleted() }

1314+ .onFailure { onError(it) }

1315+ }

1316+ pendingProfileDeletes[id]?.cancel()

1317+ pendingProfileDeletes[id] = job

1318+ }

1319+

1320+ /** Cancel a pending deferred profile delete (the Undo action). Returns true if it was

1321+ * still pending (undo succeeded), false if the delete had already fired. */

1322+ open fun cancelProfileDelete(id: String): Boolean {

1323+ val job = pendingProfileDeletes.remove(id) ?: return false

1324+ job.cancel()

1325+ return true

1326+ }

1327+

1328+ /** Deferred session deletions keyed by id, run on the process-lived [appScope] (not a

1329+ * ViewModel scope) so navigating away during the undo window still commits the delete

1330+ * instead of silently cancelling it (which would leave the session deleted-in-UI but

1331+ * alive on the server, reappearing on the next refresh). */

1332+ private val pendingSessionDeletes = java.util.concurrent.ConcurrentHashMap<String, Job>()

1333+

1334+ /** One-shot events carrying the id of a session scheduled for deferred deletion from

1335+ * outside the session list (e.g. from the chat screen's Delete). The SessionListScreen

1336+ * collects these to show an Undo snackbar, mirroring its own VM-level undo events. */

1337+ private val _externalSessionUndoEvents = MutableSharedFlow<String>(

1338+ extraBufferCapacity = NetworkConfig.snackbarEventBufferCapacity,

1339+ onBufferOverflow = kotlinx.coroutines.channels.BufferOverflow.DROP_OLDEST,

1340+ )

1341+ val externalSessionUndoEvents: SharedFlow<String> = _externalSessionUndoEvents.asSharedFlow()

1342+

1343+ /** Emit an undo event for a session delete initiated outside the session list (e.g.

1344+ * from the chat screen). The SessionListScreen collects these to show an Undo snackbar. */

1345+ fun emitExternalSessionUndo(sessionId: String) {

1346+ _externalSessionUndoEvents.tryEmit(sessionId)

1347+ }

1348+

1349+ /**

1350+ * Schedule session [id] for deletion after [delayMs], cancellable via [cancelSessionDelete]

1351+ * (the Undo action). Also clears the session's stored draft on a successful delete.

1352+ * [onDeleted]/[onError] run on [appScope] after the delete resolves so the caller can update

1353+ * its optimistic-hide state. A repeated schedule for the same id replaces the prior timer.

1354+ *

1355+ * The owning connection is captured now, at schedule time — NOT re-resolved when the timer

1356+ * fires. Otherwise a server switch during the undo window would send the delete to whichever

1357+ * server happens to be active at fire time: the original session would never be deleted (its

1358+ * row reappears on the next refresh) and, in the rare id-collision case, an unrelated session

1359+ * on the new server could be deleted instead. A disconnect closes the captured connection's

1360+ * HTTP client, so a delete deferred across a disconnect fails and is surfaced via [onError]

1361+ * (the session cannot be deleted on a server we're no longer connected to). No-ops (as an

1362+ * error) if there is no active connection at schedule time.

1363+ */

1364+ open fun scheduleSessionDelete(

1365+ id: String,

1366+ delayMs: Long,

1367+ onDeleted: () -> Unit,

1368+ onError: (Throwable) -> Unit,

1369+ ) {

1370+ val conn = _activeConnection.value

1371+ val job = appScope.launch {

1372+ delay(delayMs)

1373+ // Claim the delete by removing our own entry BEFORE committing it — the atomic

1374+ // remove is the sync point with cancelSessionDelete. Losing the race (an undo

1375+ // removed us first) means we skip, honouring cancel's `true`; deleting first

1376+ // would let a cancel land in the gap and falsely report undo of a gone session.

1377+ // remove(id, thisJob) also no-ops for a stale job after a reschedule.

1378+ val claimed = coroutineContext[Job]?.let { pendingSessionDeletes.remove(id, it) } == true

1379+ if (!claimed) return@launch

1380+ if (conn == null) {

1381+ onError(IllegalStateException("No active connection"))

1382+ } else {

1383+ runCatchingCancellable { conn.repository.deleteSession(id) }

1384+ .onSuccess {

1385+ draftStore.remove(id)

1386+ attachmentDraftStore.remove(id)

1387+ sessionPrefsStore.forget(id)

1388+ messageCacheStore.remove(conn.profile.id, id)

1389+ outboxStore.removeForSession(id)

1390+ clearUnread(id)

1391+ onDeleted()

1392+ }

1393+ .onFailure { onError(it) }

1394+ }

1395+ }

1396+ pendingSessionDeletes[id]?.cancel()

1397+ pendingSessionDeletes[id] = job

1398+ }

1399+

1400+ /** Cancel a pending deferred session delete (the Undo action). Returns true if it was

1401+ * still pending (undo succeeded), false if the delete had already fired. */

1402+ open fun cancelSessionDelete(id: String): Boolean {

1403+ val job = pendingSessionDeletes.remove(id) ?: return false

1404+ job.cancel()

1405+ return true

1406+ }

1407+

1408+ /**

1409+ * Probe a server URL (without credentials) to check reachability and detect whether

1410+ * the server requires authentication. Builds a short-lived HTTP client with the same

1411+ * base URL normalization as [connect] but no auth, calls the health endpoint, and

1412+ * classifies the outcome:

1413+ *

1414+ * - 2xx → [ProbeResult.Reachable] (no auth needed)

1415+ * - 401/403 → [ProbeResult.NeedsAuth]

1416+ * - anything else → [ProbeResult.Unreachable] with a user-facing message

1417+ *

1418+ * The probe client is always closed afterwards so no resources linger. This does not

1419+ * touch the active connection or the profile store.

1420+ */

1421+ open suspend fun probeServer(baseUrl: String, requireHttps: Boolean, certPin: String?): ProbeResult {

1422+ return probeWithProfile(ServerProfile(

1423+ id = "probe",

1424+ label = "",

1425+ baseUrl = baseUrl.trim(),

1426+ username = null,

1427+ password = null,

1428+ // Probe the same effective URL save()/connect() will use: HttpClientFactory upgrades

1429+ // http->https and installs the cert pinner when these are set, so a probe without them

1430+ // would validate a plain-http endpoint the real connection never talks to.

1431+ requireHttps = requireHttps,

1432+ certPin = certPin,

1433+ ))

1434+ }

1435+

1436+ /**

1437+ * Probe a server URL *with* credentials to validate them. Returns true if the

1438+ * server accepts the credentials (ping succeeds), false on 401/403, and throws

1439+ * on other failures (unreachable, timeout) so the caller can surface a friendly

1440+ * message. Mirrors [probeServer]'s short-lived-client pattern.

1441+ */

1442+ open suspend fun probeWithCredentials(

1443+ baseUrl: String,

1444+ username: String,

1445+ password: String,

1446+ requireHttps: Boolean,

1447+ certPin: String?,

1448+ ): Boolean {

1449+ val probeProfile = ServerProfile(

1450+ id = "probe-auth",

1451+ label = "",

1452+ baseUrl = baseUrl.trim(),

1453+ username = username.trim().takeIf { it.isNotBlank() },

1454+ password = password.trim().takeIf { it.isNotEmpty() },

1455+ // Match the effective URL/pinning save()/connect() will use (see probeServer).

1456+ requireHttps = requireHttps,

1457+ certPin = certPin,

1458+ )

1459+ val client = HttpClientFactory.create(probeProfile)

1460+ return try {

1461+ val api = OpencodeApiClient(client)

1462+ api.ping()

1463+ true

1464+ } catch (c: kotlinx.coroutines.CancellationException) {

1465+ throw c

1466+ } catch (e: Exception) {

1467+ val status = responseStatusCode(e)

1468+ if (status == 401 || status == 403) false else throw e

1469+ } finally {

1470+ runCatching { client.close() }

1471+ }

1472+ }

1473+

1474+ private suspend fun probeWithProfile(profile: ServerProfile): ProbeResult {

1475+ val client = HttpClientFactory.create(profile)

1476+ return try {

1477+ val api = OpencodeApiClient(client)

1478+ api.ping()

1479+ ProbeResult.Reachable

1480+ } catch (c: kotlinx.coroutines.CancellationException) {

1481+ throw c

1482+ } catch (e: Exception) {

1483+ val status = responseStatusCode(e)

1484+ if (status == 401 || status == 403) {

1485+ ProbeResult.NeedsAuth

1486+ } else {

1487+ ProbeResult.Unreachable(friendlyErrorFor(e, profile.baseUrl))

1488+ }

1489+ } finally {

1490+ runCatching { client.close() }

1491+ }

1492+ }

1493+

1494+ // Declared last so every property above is fully initialized before these observers start.

1495+ // They only launch coroutines into appScope (Dispatchers.IO) — nothing here runs

1496+ // synchronously during construction — so placing init at the end removes any dependence on

1497+ // the textual declaration order of the fields those observers reference.

1498+ init {

1499+ if (!skipInit) {

1500+ NotificationChannels.create(appContext!!)

1501+ observeMessageActivity()

1502+ observeRunReconcileOnReconnect()

1503+ observeRunForegroundService()

1504+ observeBackgroundedConnectionFailures()

1505+ // Load the persisted muted-sessions set so isSessionMuted() reflects the choice

1506+ // immediately on cold start (before any session list composition).

1507+ appScope.launch {

1508+ runCatchingCancellable {

1509+ sessionPrefsStore.muted.collect { ids -> _mutedSessions.value = ids }

1510+ }

1511+ }

1512+ // Flush right after load() populates the queue. observeOutbox()'s combine is keyed

1513+ // on activeConnection/isOnline/_outboxFlushTrigger — NOT on outboxStore.messages — so

1514+ // if connect() sets activeConnection before load() finishes reading a (possibly

1515+ // multi-MB) outbox.json, the connect-triggered flush sees an empty queue and nothing

1516+ // re-triggers it. Nudging the flush here guarantees a loaded queue is sent. Log a

1517+ // load failure so a corrupt outbox.json / IO error is debuggable rather than silently

1518+ // dropping every queued offline message until a future restart happens to succeed.

1519+ appScope.launch {

1520+ runCatchingCancellable { outboxStore.load() }

1521+ .onFailure { Log.w("AppContainer", "Outbox load failed; queued messages may be lost: ${safeExceptionSummary(it)}") }

1522+ flushOutbox()

1523+ }

1524+ observeOutbox()

1525+ appScope.launch { autoConnect() }

1526+ }

1527+ }

1528+}

1529+

1530+/**

1531+ * Extract the session id a message-activity event pertains to, or null for events that

1532+ * don't describe message activity. This drives the unread badge: any session that

1533+ * receives activity while it isn't the currently-viewed one gets badged. Extracted as

1534+ * a top-level `internal` function so the rule is unit-testable without an Android

1535+ * [Context] (the surrounding [AppContainer] needs one).

1536+ */

1537+internal fun sessionOfEvent(event: BusEvent): String? = when (event) {

1538+ is MessageUpdated -> event.properties.info.sessionID

1539+ is MessagePartUpdated -> event.properties.part.sessionID ?: event.properties.sessionID

1540+ else -> null

1541+}

1542+

1543+/**

1544+ * The message id a message-activity event pertains to, used to de-duplicate the unread

1545+ * badge so a reply's many streaming events count once. Null for events that carry no

1546+ * message id (those fall back to being counted individually).

1547+ */

1548+internal fun messageIdOfEvent(event: BusEvent): String? = when (event) {

1549+ is MessageUpdated -> event.properties.info.id

1550+ is MessagePartUpdated -> event.properties.messageID ?: event.properties.part.messageID

1551+ else -> null

1552+}

app/src/main/java/soy/iko/opencode/di/OpencodeConnection.ktnew file+47

@@ -0,0 +1,47 @@

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+

14+/**

15+ * An active connection to one opencode server. Bundles the Ktor client, REST API,

16+ * SSE event stream, and the reducing repository, all sharing a connection-scoped

17+ * coroutine scope that is cancelled on [close].

18+ */

19+open class OpencodeConnection(

20+ val profile: ServerProfile,

21+ // Optional on-disk message cache, supplied by AppContainer, so conversations render

22+ // instantly and stay readable offline. Null in the test constructor.

23+ private val messageCache: MessageCacheStore? = null,

24+) {

25+

26+ protected constructor() : this(ServerProfile(id = "", label = "", baseUrl = "http://localhost"), null)

27+

28+ private val scopeJob = SupervisorJob()

29+ private val scope by lazy { CoroutineScope(scopeJob + Dispatchers.IO) }

30+ private val client by lazy { HttpClientFactory.create(profile) }

31+

32+ open val api: OpencodeApiClient by lazy { OpencodeApiClient(client) }

33+ open val events: EventStreamClient by lazy { EventStreamClient(client, scope) }

34+ open val repository: SessionRepository by lazy { SessionRepository(api, events, messageCache, profile.id) }

35+

36+ /**

37+ * Cancel the coroutine scope and wait for in-flight work (including the SSE reader)

38+ * to wind down before closing the HTTP client. Calling client.close() while the SSE

39+ * coroutine is still mid-request produces a spurious "stream error, will retry"

40+ * warning during normal teardown.

41+ */

42+ open suspend fun close() {

43+ scope.cancel()

44+ scopeJob.join()

45+ runCatching { client.close() }

46+ }

47+}

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+329

@@ -0,0 +1,329 @@

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+

20+/**

21+ * A foreground service kept alive while an opencode agent is actively running. Holding a

22+ * foreground priority lets the long-lived SSE `/event` subscription survive backgrounding

23+ * (Doze/app-standby would otherwise choke the socket and stall streaming mid-run).

24+ *

25+ * The service is started when a run begins ([start]) and stopped when it goes idle

26+ * ([stop]). It shows a low-importance "Agent is working…" notification in [NotificationChannels.STATUS].

27+ * Started/stopped via Compose from the chat screen based on the `running` state.

28+ */

29+class RunForegroundService : Service() {

30+

31+ // Wall-clock time the current run started, captured on the first onStartCommand of

32+ // the run and reused across progress-driven notification rebuilds so the chronometer's

33+ // base doesn't jump back to 0:00 every time the agent advances a step. Reset to 0 in

34+ // onDestroy once the run ends (stop() → onDestroy) so the next run starts fresh.

35+ //

36+ // Instance field (not companion/static): a static field would survive a stopped-then-

37+ // recreated service instance and leave the chronometer pinned to a previous run's start

38+ // if onDestroy hadn't run yet when the next run's first intent arrived. As an instance

39+ // field it's reset by construction on every new Service instance.

40+ private var runStartMillis: Long = 0L

41+ // Whether *this* service instance has successfully called startForeground. Tracked so

42+ // progress-driven re-starts (which re-enter onStartCommand) don't re-call startForeground

43+ // and re-bind the 5s obligation each time — that would let a backgrounded re-start throw

44+ // ForegroundServiceStartNotAllowedException even though the service is already in the

45+ // foreground. After the first successful startForeground, progress updates refresh the

46+ // notification via NotificationManager.notify directly (see [updateProgress]), which

47+ // never throws the background-start exception.

48+ private var isInForeground: Boolean = false

49+ // The most recent session title/id/profile/progress handed to onStartCommand, retained so

50+ // [updateProgress] can rebuild the notification with a new progress string without a fresh

51+ // startForegroundService intent (which can throw when backgrounded).

52+ private var lastTitle: String? = null

53+ private var lastSessionId: String? = null

54+ private var lastProfileId: String? = null

55+ private var lastProgress: String? = null

56+

57+ @android.annotation.SuppressLint("MissingPermission")

58+ override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {

59+ instance = this

60+ // The session title (when a single run is active) is passed via the intent extra so

61+ // the notification can identify which session is running, instead of a generic

62+ // "Agent is working…". Null/blank falls back to the generic title.

63+ val sessionTitle = intent?.getStringExtra(EXTRA_SESSION_TITLE)?.takeIf { it.isNotBlank() }

64+ val sessionId = intent?.getStringExtra(EXTRA_SESSION_ID)?.takeIf { it.isNotBlank() }

65+ val profileId = intent?.getStringExtra(EXTRA_PROFILE_ID)?.takeIf { it.isNotBlank() }

66+ val progress = intent?.getStringExtra(EXTRA_PROGRESS)?.takeIf { it.isNotBlank() }

67+ lastTitle = sessionTitle

68+ lastSessionId = sessionId

69+ lastProfileId = profileId

70+ lastProgress = progress

71+ // Capture the wall-clock start of the *first* intent of this run and reuse it across

72+ // rebuilds so the chronometer's base doesn't jump back to 0:00 every time the agent

73+ // advances a step. As an instance field it's 0 on a fresh service, so a recreated

74+ // service (after onDestroy reset) starts the clock fresh too.

75+ if (runStartMillis == 0L) runStartMillis = System.currentTimeMillis()

76+ val notification = buildNotification(sessionTitle, sessionId, profileId, progress)

77+ // Only call startForeground once per service lifetime — re-calling it on every

78+ // progress-driven re-start re-binds the "must call startForeground within 5s"

79+ // obligation each time, and if the app is backgrounded between two progress

80+ // updates the new call can throw ForegroundServiceStartNotAllowedException even

81+ // though the service is already in the foreground. That would drop foreground

82+ // priority mid-run (the catch below stopSelf()s, killing the FGS while

83+ // anyRunActive is still true). After the first successful startForeground,

84+ // progress updates refresh the notification via NotificationManager.notify

85+ // directly, which never throws the background-start exception.

86+ if (!isInForeground) {

87+ runCatching {

88+ ServiceCompat.startForeground(

89+ this,

90+ NOTIF_ID,

91+ notification,

92+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {

93+ ServiceInfo.FOREGROUND_SERVICE_TYPE_DATA_SYNC

94+ } else {

95+ 0

96+ },

97+ )

98+ }.onFailure {

99+ Log.w(TAG, "startForeground failed; running without foreground priority", it)

100+ stopSelf()

101+ }.also { isInForeground = it.isSuccess }

102+ } else {

103+ // Already in the foreground: refresh the notification in place. NotificationManager

104+ // updates an ongoing notification without re-asserting foreground priority.

105+ runCatching {

106+ NotificationManagerCompat.from(this).notify(NOTIF_ID, notification)

107+ }.onFailure { Log.w(TAG, "Failed to update foreground notification", it) }

108+ }

109+ return START_NOT_STICKY

110+ }

111+

112+ /** Rebuild the notification with an updated progress string and re-notify in place, *without*

113+ * re-entering [onStartCommand] (and therefore without calling [Context.startForegroundService],

114+ * which can throw [android.app.ForegroundServiceStartNotAllowedException] on Android 12+ when

115+ * the app is backgrounded — even if the service is already in the foreground). Called directly

116+ * by the companion [updateProgress] when a progress refresh is needed while the service is

117+ * already running; falls back to [start] (which goes through startForegroundService) when the

118+ * service isn't alive yet, so the first progress update still lands. */

119+ @SuppressLint("MissingPermission")

120+ private fun updateProgress(progress: String?) {

121+ // Guard against the companion start() → instance race: start() reads @Volatile instance

122+ // on a background dispatcher and calls updateProgress, but onDestroy (on the main thread)

123+ // can null instance and call stopForeground between the read and this notify(). isInForeground

124+ // is cleared in onDestroy, so checking it here covers the stopForeground-already-called case

125+ // and avoids touching NotificationManager during teardown.

126+ if (!isInForeground) return

127+ lastProgress = progress

128+ val notification = buildNotification(lastTitle, lastSessionId, lastProfileId, progress)

129+ runCatching {

130+ NotificationManagerCompat.from(this).notify(NOTIF_ID, notification)

131+ }.onFailure { Log.w(TAG, "Failed to update foreground notification progress", it) }

132+ }

133+

134+ private fun mainContentIntent(): PendingIntent {

135+ // Tapping the notification opens the app so the user can see the running session.

136+ val openIntent = Intent(this, MainActivity::class.java).apply {

137+ flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP

138+ }

139+ return PendingIntent.getActivity(

140+ this, 0, openIntent,

141+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

142+ )

143+ }

144+

145+ private fun buildNotification(

146+ sessionTitle: String?,

147+ sessionId: String?,

148+ profileId: String? = null,

149+ progress: String? = null,

150+ ): Notification {

151+ val pendingIntent = mainContentIntent()

152+ val contentText = progress ?: sessionTitle ?: getString(R.string.notif_running_text)

153+ val builder = NotificationCompat.Builder(this, NotificationChannels.STATUS)

154+ .setSmallIcon(R.drawable.ic_stat_notify)

155+ .setColor(brandColor(this))

156+ .setContentTitle(getString(R.string.notif_running_title))

157+ .setContentText(contentText)

158+ .setContentIntent(pendingIntent)

159+ .setOngoing(true)

160+ // Show a live elapsed timer so the user can see how long the current run has

161+ // been going — no per-tick plumbing needed; the system renders the chronometer.

162+ // runStartMillis is captured once at the start of the run (see onStartCommand)

163+ // and reused across progress-driven rebuilds so the chronometer base is stable.

164+ .setWhen(runStartMillis)

165+ .setUsesChronometer(true)

166+ .setShowWhen(true)

167+ .setPriority(NotificationCompat.PRIORITY_LOW)

168+ .setCategory(NotificationCompat.CATEGORY_PROGRESS)

169+ // An indeterminate progress bar so the notification reads as actively "in progress"

170+ // at a glance (alongside the chronometer), matching the conventional run affordance.

171+ .setProgress(0, 0, true)

172+ // Add a Stop action so the user can cancel the run without opening the app — the

173+ // core of the "kick it off and walk away" flow. Only when a specific session is

174+ // known (multiple concurrent runs can't be targeted individually). The profile id

175+ // is embedded so [AppContainer.abortRunFromNotification]'s routing guard sends the

176+ // abort to the originating server even if the user has switched profiles between

177+ // starting the run and tapping Stop (mirroring the other notification actions).

178+ if (sessionId != null) {

179+ val stopIntent = Intent(this, NotificationActionReceiver::class.java).apply {

180+ action = NotificationActionReceiver.ACTION_STOP_RUN

181+ putExtra(NotificationActionReceiver.EXTRA_SESSION_ID, sessionId)

182+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

183+ }

184+ val stopPending = PendingIntent.getBroadcast(

185+ this, sessionId.hashCode(), stopIntent,

186+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

187+ )

188+ builder.addAction(

189+ R.drawable.ic_action_stop,

190+ getString(R.string.notif_action_stop),

191+ stopPending,

192+ )

193+ }

194+ return builder.build()

195+ }

196+

197+ // Android 14+ can time out a foreground service (notably the ~6h/day cumulative cap on

198+ // dataSync in Android 15) and calls onTimeout expecting a prompt stop; not stopping risks

199+ // the system force-stopping/ANR-ing the app. Stop cleanly — a still-active run just

200+ // continues without foreground priority. Post a low-priority notification so the user

201+ // knows their long-running task may be paused in the background, rather than silently

202+ // losing foreground priority. Both overloads are covered (the 2-arg form is API 35+).

203+ override fun onTimeout(startId: Int) {

204+ Log.w(TAG, "Foreground service timed out; stopping")

205+ postTimeoutNotification()

206+ stopSelf()

207+ }

208+

209+ override fun onTimeout(startId: Int, fgsType: Int) {

210+ Log.w(TAG, "Foreground service timed out (type=$fgsType); stopping")

211+ postTimeoutNotification()

212+ stopSelf()

213+ }

214+

215+ /** Post a low-priority notification informing the user that the foreground service was

216+ * timed out by the system — the run continues but may be killed by Doze without warning. */

217+ @SuppressLint("MissingPermission")

218+ private fun postTimeoutNotification() {

219+ runCatching {

220+ val notification = NotificationCompat.Builder(this, NotificationChannels.STATUS)

221+ .setSmallIcon(R.drawable.ic_stat_notify)

222+ .setColor(brandColor(this))

223+ .setContentTitle(getString(R.string.notif_running_title))

224+ .setContentText(getString(R.string.notif_fg_timeout_text))

225+ .setContentIntent(mainContentIntent())

226+ .setAutoCancel(true)

227+ .setPriority(NotificationCompat.PRIORITY_LOW)

228+ .build()

229+ NotificationManagerCompat.from(this).notify(NOTIF_TIMEOUT_ID, notification)

230+ }

231+ }

232+

233+ override fun onDestroy() {

234+ // Safety net: if the process is being killed while a run is in progress,

235+ // ensure the notification is removed rather than lingering.

236+ ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)

237+ // Clear the run-start / foreground / instance state so the next run's chronometer

238+ // begins fresh and startForeground is re-asserted on the first intent of the next

239+ // run. These are instance fields, so a recreated service resets them by construction

240+ // — but clearing here also covers the same-instance restart case.

241+ runStartMillis = 0L

242+ isInForeground = false

243+ lastTitle = null

244+ lastSessionId = null

245+ lastProfileId = null

246+ lastProgress = null

247+ instance = null

248+ super.onDestroy()

249+ }

250+

251+ override fun onBind(intent: Intent?): IBinder? = null

252+

253+ // Reset the brand-color cache when the configuration (notably uiMode/night mode) changes

254+ // so the notification icon tint follows the app theme instead of staying pinned to whatever

255+ // the first build resolved. The service isn't recreated on a config change (it's a service,

256+ // not an Activity), so without this the cached color is stale until onDestroy.

257+ override fun onConfigurationChanged(newConfig: Configuration) {

258+ super.onConfigurationChanged(newConfig)

259+ brandColorCache = 0

260+ }

261+

262+ companion object {

263+ private const val TAG = "RunForegroundService"

264+ private const val NOTIF_ID = 1

265+ private const val NOTIF_TIMEOUT_ID = 2

266+ // Brand accent for the foreground notifications' small-icon tint circle. Resolved

267+ // from resources (R.color.notif_brand) so it follows the app theme (light/dark)

268+ // instead of a hardcoded constant. Lazily computed on first use from the app context

269+ // and reset in onConfigurationChanged so a theme toggle mid-run doesn't pin the tint

270+ // to the old theme for the rest of the run.

271+ private var brandColorCache: Int = 0

272+ private fun brandColor(context: Context): Int {

273+ if (brandColorCache == 0) {

274+ brandColorCache = androidx.core.content.ContextCompat.getColor(context, R.color.notif_brand)

275+ }

276+ return brandColorCache

277+ }

278+ // Live reference to the running service instance, published in onStartCommand and

279+ // cleared in onDestroy. @Volatile so [updateProgress]'s read from the app-scope

280+ // coroutine sees the most recent publication. Null when the service isn't running.

281+ @Volatile private var instance: RunForegroundService? = null

282+ const val EXTRA_SESSION_TITLE = "soy.iko.opencode.extra.SESSION_TITLE"

283+ const val EXTRA_SESSION_ID = "soy.iko.opencode.extra.SESSION_ID"

284+ const val EXTRA_PROFILE_ID = "soy.iko.opencode.extra.PROFILE_ID"

285+ const val EXTRA_PROGRESS = "soy.iko.opencode.extra.PROGRESS"

286+

287+ /** Start the service (or refresh an already-running one). [profileId] is embedded in the

288+ * Stop action's PendingIntent so an abort from the notification reaches the originating

289+ * server even after a profile switch. */

290+ fun start(

291+ context: Context,

292+ sessionTitle: String? = null,

293+ sessionId: String? = null,

294+ profileId: String? = null,

295+ progress: String? = null,

296+ ) {

297+ // If the service is already in the foreground, refresh the notification in place

298+ // via NotificationManager.notify (through the live instance) instead of going

299+ // through startForegroundService. On Android 12+, startForegroundService can

300+ // throw ForegroundServiceStartNotAllowedException when the app is backgrounded

301+ // — *even if the service is already running in the foreground* — and the

302+ // runCatching below would swallow it, leaving the progress text un-updated

303+ // precisely when the app is backgrounded (the FGS's whole purpose). The in-place

304+ // notify never throws, so progress refreshes always land while the service runs.

305+ val live = instance

306+ if (live != null) {

307+ live.updateProgress(progress)

308+ return

309+ }

310+ // startForegroundService can throw ForegroundServiceStartNotAllowedException

311+ // on Android 12+ if the app is in the background. Wrap it so a backgrounded

312+ // start (e.g. the user navigates away at the wrong moment) doesn't crash.

313+ runCatching {

314+ val intent = Intent(context, RunForegroundService::class.java)

315+ sessionTitle?.let { intent.putExtra(EXTRA_SESSION_TITLE, it) }

316+ sessionId?.let { intent.putExtra(EXTRA_SESSION_ID, it) }

317+ profileId?.let { intent.putExtra(EXTRA_PROFILE_ID, it) }

318+ progress?.let { intent.putExtra(EXTRA_PROGRESS, it) }

319+ context.startForegroundService(intent)

320+ }.onFailure {

321+ Log.w(TAG, "startForegroundService failed; running without foreground priority", it)

322+ }

323+ }

324+

325+ fun stop(context: Context) {

326+ context.stopService(Intent(context, RunForegroundService::class.java))

327+ }

328+ }

329+}

app/src/main/java/soy/iko/opencode/notification/SessionNotifications.ktnew file+556

@@ -0,0 +1,556 @@

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+ .build()

383+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

384+ .onFailure { Log.w(TAG, "Failed to post reply-failed notification", it) }

385+ }

386+

387+ /** A queued outbox message was permanently undeliverable (e.g. the target session was

388+ * deleted server-side → 404). Distinct from [postError] (which is titled "Run failed"):

389+ * no run failed — a queued reply couldn't be delivered. Uses a distinct title/body so the

390+ * user understands the failure mode and recovery action (open the session and re-send). */

391+ @SuppressLint("MissingPermission")

392+ fun postOutboxDropped(context: Context, sessionId: String, sessionTitle: String, profileId: String? = null) {

393+ if (!canPost(context)) return

394+ val notifId = notifId(NS_ERROR, sessionId)

395+ val notification = NotificationCompat.Builder(context, NotificationChannels.ERROR)

396+ .setSmallIcon(R.drawable.ic_stat_notify)

397+ .setContentTitle(context.getString(R.string.message_not_delivered))

398+ .setContentText(context.getString(R.string.message_not_delivered_body, sessionTitle))

399+ .setAutoCancel(true)

400+ .setOnlyAlertOnce(true)

401+ .setContentIntent(openSessionIntent(context, sessionId, notifId, profileId))

402+ .setCategory(NotificationCompat.CATEGORY_ERROR)

403+ .setPriority(NotificationCompat.PRIORITY_DEFAULT)

404+ .setGroup(GROUP_ERROR)

405+ .build()

406+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

407+ .onFailure { Log.w(TAG, "Failed to post outbox-dropped notification", it) }

408+ runCatching { postGroupSummary(context, NotificationChannels.ERROR, GROUP_ERROR, SUMMARY_ERROR_ID) }

409+ .onFailure { Log.w(TAG, "Failed to post error summary notification", it) }

410+ }

411+

412+ /** The SSE stream hit a non-retryable failure (Failed/AuthFailed) while the app was

413+ * backgrounded during an active run, so the in-app banner isn't visible and the run is

414+ * effectively stranded. Posts a low-priority notification so a backgrounded user is

415+ * signaled that their run is stalled and can tap to reconnect. Distinct from [postError]

416+ * (a run error) — this is a connection loss, not a run failure. */

417+ @SuppressLint("MissingPermission")

418+ fun postConnectionLost(context: Context, profileLabel: String, profileId: String?) {

419+ if (!canPost(context)) return

420+ val notifId = CONNECTION_LOST_ID

421+ // Tap reopens the app at the server list so the user can reconnect / fix credentials.

422+ val openIntent = Intent(context, MainActivity::class.java).apply {

423+ flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP

424+ profileId?.let { putExtra(NotificationActionReceiver.EXTRA_PROFILE_ID, it) }

425+ }

426+ val openPending = PendingIntent.getActivity(

427+ context, notifId, openIntent,

428+ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,

429+ )

430+ val notification = NotificationCompat.Builder(context, NotificationChannels.ERROR)

431+ .setSmallIcon(R.drawable.ic_stat_notify)

432+ .setContentTitle(context.getString(R.string.connection_lost, profileLabel))

433+ .setContentText(context.getString(R.string.connection_lost_tap))

434+ .setAutoCancel(true)

435+ .setOnlyAlertOnce(true)

436+ .setContentIntent(openPending)

437+ .setCategory(NotificationCompat.CATEGORY_STATUS)

438+ .setPriority(NotificationCompat.PRIORITY_LOW)

439+ .build()

440+ runCatching { NotificationManagerCompat.from(context).notify(notifId, notification) }

441+ .onFailure { Log.w(TAG, "Failed to post connection-lost notification", it) }

442+ }

443+

444+ /** Cancel a previously-posted [postConnectionLost] notification (e.g. on reconnect). */

445+ fun cancelConnectionLost(context: Context) {

446+ NotificationManagerCompat.from(context).cancel(CONNECTION_LOST_ID)

447+ }

448+

449+ /** FLAG_MUTABLE where required (Android 12+) so RemoteInput results can be injected. */

450+ private fun mutableFlag(): Int =

451+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_MUTABLE else 0

452+

453+ /** Cancel a session's completion notification (e.g. when the user opens it). */

454+ fun cancel(context: Context, sessionId: String) {

455+ NotificationManagerCompat.from(context).cancel(notifId(NS_COMPLETED, sessionId))

456+ maybeCancelSummary(context, GROUP_COMPLETED, SUMMARY_COMPLETED_ID)

457+ }

458+

459+ /**

460+ * Reflect the total number of unread sessions as a launcher-icon badge. Android only badges

461+ * the launcher icon via a notification on a badge-enabled channel, so this posts a silent,

462+ * min-importance notification with [.setNumber] on the [NotificationChannels.UNREAD] channel

463+ * when [totalUnread] > 0, and cancels it when it drops to 0. Skipped entirely without

464+ * POST_NOTIFICATIONS permission (Android 13+) — the badge just won't show, no error.

465+ */

466+ @SuppressLint("MissingPermission")

467+ fun updateUnreadBadge(context: Context, totalUnread: Int) {

468+ val nm = NotificationManagerCompat.from(context)

469+ if (totalUnread <= 0) {

470+ nm.cancel(UNREAD_BADGE_ID)

471+ return

472+ }

473+ if (!canPost(context)) return

474+ val notification = NotificationCompat.Builder(context, NotificationChannels.UNREAD)

475+ .setSmallIcon(R.drawable.ic_stat_notify)

476+ .setContentTitle(context.getString(R.string.app_name))

477+ .setContentText(context.resources.getQuantityString(R.plurals.unread_sessions, totalUnread, totalUnread))

478+ .setNumber(totalUnread.coerceAtMost(999))

479+ .setOnlyAlertOnce(true)

480+ .setSilent(true)

481+ .setShowWhen(false)

482+ .setPriority(NotificationCompat.PRIORITY_MIN)

483+ .build()

484+ runCatching { nm.notify(UNREAD_BADGE_ID, notification) }

485+ .onFailure { Log.w(TAG, "Failed to post unread badge notification", it) }

486+ }

487+

488+ /** Cancel a session's permission notification (on reply, or when the user opens it). Also

489+ * cancels the auto-rejected-permission notification (posted under notifId + 1) so opening

490+ * the session by any route other than tapping that notification clears it too — without

491+ * this a stale "auto-rejected" heads-up lingers in the shade (setAutoCancel only dismisses

492+ * on a direct tap). */

493+ fun cancelPermission(context: Context, sessionId: String) {

494+ val nm = NotificationManagerCompat.from(context)

495+ val baseId = notifId(NS_PERMISSION, sessionId)

496+ nm.cancel(baseId)

497+ nm.cancel(baseId + 1) // postPermissionAutoRejected uses baseId + 1

498+ maybeCancelSummary(context, GROUP_PERMISSION, SUMMARY_PERMISSION_ID)

499+ }

500+

501+ /** Cancel a session's error notification (e.g. when the user opens it). Without this a

502+ * stale "run failed" notification lingers when the session is opened by any route other

503+ * than tapping the notification itself (setAutoCancel only clears it on a direct tap). */

504+ fun cancelError(context: Context, sessionId: String) {

505+ NotificationManagerCompat.from(context).cancel(notifId(NS_ERROR, sessionId))

506+ maybeCancelSummary(context, GROUP_ERROR, SUMMARY_ERROR_ID)

507+ }

508+

509+ /** Build the lock-screen (public) version of a notification: only a generic title, no

510+ * detail line, so sensitive file paths / commands in the real content aren't revealed

511+ * while the device is locked. */

512+ /** When the last child of a group is dismissed, cancel its lingering summary so it

513+ * doesn't sit empty in the shade. NotificationManagerCompat lacks getActiveNotifications,

514+ * so reach for the platform NotificationManager. The children/summary are posted without

515+ * a tag, so matching by [android.app.Notification.getGroup] (plus excluding the summary

516+ * id) is the reliable way to tell if any child remains. */

517+ private fun maybeCancelSummary(context: Context, group: String, summaryId: Int) {

518+ val nm = context.getSystemService(Context.NOTIFICATION_SERVICE) as? NotificationManager

519+ ?: return

520+ val active = try {

521+ nm.activeNotifications

522+ } catch (e: Exception) {

523+ Log.w(TAG, "Failed to query active notifications for summary cleanup", e)

524+ return

525+ }

526+ val hasChild = active.any { it.id != summaryId && it.notification?.group == group }

527+ if (!hasChild) {

528+ runCatching { NotificationManagerCompat.from(context).cancel(summaryId) }

529+ .onFailure { Log.w(TAG, "Failed to cancel empty group summary", it) }

530+ }

531+ }

532+

533+ private const val GROUP_COMPLETED = "soy.iko.opencode.COMPLETED"

534+ private const val GROUP_PERMISSION = "soy.iko.opencode.PERMISSION"

535+ private const val GROUP_ERROR = "soy.iko.opencode.ERROR"

536+ private const val SUMMARY_COMPLETED_ID = -1

537+ private const val SUMMARY_PERMISSION_ID = -2

538+ private const val SUMMARY_ERROR_ID = -3

539+

540+ /** Post a summary notification for a group so multiple entries collapse into one stackable

541+ * entry in the shade instead of filling it. */

542+ @SuppressLint("MissingPermission")

543+ private fun postGroupSummary(context: Context, channelId: String, group: String, summaryId: Int) {

544+ if (!canPost(context)) return

545+ val summary = NotificationCompat.Builder(context, channelId)

546+ .setSmallIcon(R.drawable.ic_stat_notify)

547+ .setContentTitle(context.getString(R.string.app_name))

548+ .setAutoCancel(true)

549+ .setGroup(group)

550+ .setGroupSummary(true)

551+ .build()

552+ runCatching {

553+ NotificationManagerCompat.from(context).notify(summaryId, summary)

554+ }.onFailure { Log.w(TAG, "Failed to post group summary notification", it) }

555+ }

556+}

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+586−90

@@ -1,124 +1,620 @@

1package soy.iko.opencode.ui

1package soy.iko.opencode.ui

2

2

3−import androidx.activity.compose.BackHandler

3+import androidx.compose.animation.EnterTransition

4+import androidx.compose.animation.ExitTransition

5+import androidx.compose.animation.core.tween

4−import androidx.compose.animation.AnimatedContent

6+import androidx.compose.animation.fadeIn

7+import androidx.compose.animation.fadeOut

5import androidx.compose.animation.slideInHorizontally

8import androidx.compose.animation.slideInHorizontally

6import androidx.compose.animation.slideOutHorizontally

9import 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

8import androidx.compose.foundation.layout.fillMaxSize

14import 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

17import androidx.compose.runtime.Composable

15import androidx.compose.runtime.Composable

16+import androidx.compose.runtime.CompositionLocalProvider

18import androidx.compose.runtime.LaunchedEffect

17import androidx.compose.runtime.LaunchedEffect

19import androidx.compose.runtime.getValue

18import androidx.compose.runtime.getValue

20import androidx.compose.runtime.mutableStateOf

19import androidx.compose.runtime.mutableStateOf

21import androidx.compose.runtime.remember

20import androidx.compose.runtime.remember

21+import androidx.compose.runtime.rememberCoroutineScope

22+import androidx.compose.runtime.saveable.rememberSaveable

22import androidx.compose.runtime.setValue

23import androidx.compose.runtime.setValue

23import androidx.compose.ui.Modifier

24import androidx.compose.ui.Modifier

24−import soy.iko.opencode.core.Event

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

25−import soy.iko.opencode.core.Screen

46+import soy.iko.opencode.di.AppContainer

26−import soy.iko.opencode.core.UiState

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

27−import soy.iko.opencode.ui.screens.ChatScreen

48+import soy.iko.opencode.ui.chat.ChatScreen

28−import soy.iko.opencode.ui.screens.ConnectScreen

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

29−import soy.iko.opencode.ui.screens.SessionsScreen

69+import soy.iko.opencode.ui.mcp.McpScreen

70+import soy.iko.opencode.util.findActivity

71+import soy.iko.opencode.util.runCatchingCancellable

30

72

31@Composable

73@Composable

32−fun OpencodeApp(state: UiState, dispatch: (Event) -> Unit) {

74+fun OpencodeApp(container: AppContainer) {

33− val snackbar = remember { SnackbarHostState() }

75+ val navController = rememberNavController()

34− var showStopConfirm by remember { mutableStateOf(false) }

76+ val scope = rememberCoroutineScope()

35− var showDisconnectConfirm by remember { mutableStateOf(false) }

77+ val pendingShare by container.pendingShare.collectAsStateWithLifecycle()

36−

78+ val pendingSharedMedia by container.pendingSharedMedia.collectAsStateWithLifecycle()

37− LaunchedEffect(state.error) {

79+ val pendingOpenSession by container.pendingOpenSession.collectAsStateWithLifecycle()

38− state.error?.let {

80+ val pendingNewSession by container.pendingNewSession.collectAsStateWithLifecycle()

39− snackbar.showSnackbar(

81+ val pendingOpenFile by container.pendingOpenFile.collectAsStateWithLifecycle()

40− message = it,

82+ val pendingDiagnostics by container.pendingDiagnostics.collectAsStateWithLifecycle()

41− actionLabel = "Dismiss",

83+ val connection by container.activeConnection.collectAsStateWithLifecycle()

42− duration = SnackbarDuration.Short,

84+ // Chat presentation preferences, provided to the whole nav graph so the markdown/code

43− )

85+ // renderers honor the user's text-size and code-wrap choices everywhere.

44− // Always clear the error from state after showing.

86+ val chatTextScale by container.settingsStore.chatTextScale.collectAsStateWithLifecycle(initialValue = 1f)

45− dispatch(Event.DismissError)

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 }

46 }

136 }

47 }

137 }

48

138

49− BackHandler(enabled = state.screen != Screen.Connect) {

139+ // Crash-relaunch prompt: navigate to the Diagnostics screen when the user taps

50− when (state.screen) {

140+ // "View report" on the cold-start crash dialog. Doesn't require a connection.

51− // Leaving mid-generation would silently drop the reply, so confirm first.

141+ LaunchedEffect(pendingDiagnostics) {

52− Screen.Chat -> if (state.generating) showStopConfirm = true else dispatch(Event.NavigateToSessions)

142+ if (!pendingDiagnostics) return@LaunchedEffect

53− // Disconnecting drops the server session, so guard the back button.

143+ container.consumePendingDiagnostics()

54− Screen.Sessions -> showDisconnectConfirm = true

144+ navController.navigate(Routes.DIAGNOSTICS) { launchSingleTop = true }

55− Screen.Connect -> Unit

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+ if (!navController.popBackStack(Routes.SESSIONS, inclusive = false)) {

159+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

56 }

160 }

161+ navController.navigate(Routes.chat(session.id)) { launchSingleTop = true }

57 }

162 }

58

163

59− if (showStopConfirm) {

164+ // The chat text-size preference multiplies on top of the OS font scale (sp already

60− AlertDialog(

165+ // honors the system setting), so a large system size × large app size can reach ~2×

61− onDismissRequest = { showStopConfirm = false },

166+ // and break tight layouts. Clamp the provided app scale so the product with the OS

62− title = { Text("Stop generation?") },

167+ // fontScale never exceeds NetworkConfig.maxCombinedFontScale, while never scaling

63− text = { Text("Leaving will stop the current generation.") },

168+ // below the user's chosen value's intent (floor of 1× app scale is preserved when the

64− confirmButton = {

169+ // system size alone already exceeds the cap).

65− TextButton(onClick = {

170+ val systemFontScale = LocalDensity.current.fontScale

66− showStopConfirm = false

171+ val clampedChatTextScale = if (systemFontScale <= 0f) {

67− dispatch(Event.CancelGeneration)

172+ chatTextScale

68− dispatch(Event.NavigateToSessions)

173+ } else {

69− }) {

174+ chatTextScale.coerceAtMost(

70− Text("Stop and leave")

175+ (NetworkConfig.maxCombinedFontScale / systemFontScale).coerceAtLeast(1f)

71− }

72− },

73− dismissButton = {

74− TextButton(onClick = { showStopConfirm = false }) {

75− Text("Stay")

76− }

77− },

78 )

176 )

79 }

177 }

80

178

81− if (showDisconnectConfirm) {

179+ // Capture the reduced-motion preference once (in the composable scope) so the

82− AlertDialog(

180+ // non-composable NavHost transition lambdas can use it to skip animations, and provide

83− onDismissRequest = { showDisconnectConfirm = false },

181+ // it via LocalReducedMotion so in-composition animations (chat row placement, banners,

84− title = { Text("Disconnect?") },

182+ // image zoom) honor the same accessibility preference.

85− text = { Text("You will be disconnected from the server.") },

183+ val reducedMotion = isReducedMotion()

86− confirmButton = {

184+ CompositionLocalProvider(

87− TextButton(onClick = {

185+ LocalChatTextScale provides clampedChatTextScale,

88− showDisconnectConfirm = false

186+ LocalCodeWrap provides codeWrap,

89− dispatch(Event.NavigateToConnect)

187+ LocalReducedMotion provides reducedMotion,

188+ LocalHapticFeedback provides rememberGatedHaptics(hapticsEnabled),

189+ ) {

190+ // Slide direction for push/pop transitions, mirrored in RTL so the animation reads

191+ // naturally instead of "going the wrong way". +1 = LTR (push from right), -1 = RTL.

192+ val slideDir = if (LocalLayoutDirection.current == LayoutDirection.Rtl) -1 else 1

193+ // Adaptive: on wide screens (tablets / unfolded foldables) show the session list and

194+ // the open conversation side by side instead of a single-pane back stack.

195+ // Posture-aware: a foldable in HALF_OPENED (tabletop/book) mode has a hinge across the

196+ // content area — splitting there would place the list/detail boundary on the hinge, which

197+ // is hard to read and interact with. Detect a FoldingFeature and suppress two-pane in

198+ // those postures so the app falls back to a single-pane layout that respects the fold.

199+ val windowContext = LocalContext.current

200+ var foldState by remember { mutableStateOf<androidx.window.layout.FoldingFeature?>(null) }

201+ androidx.compose.runtime.LaunchedEffect(windowContext) {

202+ val activity = windowContext.findActivity()

203+ if (activity != null) {

204+ androidx.window.layout.WindowInfoTracker.getOrCreate(windowContext)

205+ .windowLayoutInfo(activity)

206+ .collect { info ->

207+ foldState = info.displayFeatures

208+ .filterIsInstance<androidx.window.layout.FoldingFeature>()

209+ .firstOrNull()

210+ }

211+ }

212+ }

213+ val isHalfOpened = foldState?.state == androidx.window.layout.FoldingFeature.State.HALF_OPENED

214+ BoxWithConstraints(

215+ modifier = Modifier.onPreviewKeyEvent { ev ->

216+ // Global keyboard shortcuts for hardware-keyboard users (tablets, DeX, Chromebook):

217+ // Ctrl+1..6 switches between top-level destinations. Only fires on KeyDown so a

218+ // held Ctrl doesn't re-trigger on every repeat. Per-screen shortcuts (Ctrl+K palette,

219+ // Esc stop, Ctrl+F find) are handled in each screen's own onPreviewKeyEvent and take

220+ // precedence (they're closer to the focused composable in the tree).

221+ if (ev.type != KeyEventType.KeyDown || !ev.isCtrlPressed) {

222+ // Alt+Left (a familiar desktop "Back" gesture) pops the back stack. Not gated

223+ // on Ctrl so it works as a standalone modifier. Per-screen shortcuts (Esc

224+ // stop, Ctrl+F find, Ctrl+K palette) register their own onPreviewKeyEvent

225+ // closer to the focused composable and consume first, so this only pops when

226+ // nothing nearer handled the key — avoiding conflicts with open dialogs and

227+ // text fields. Esc is deliberately NOT mapped to back here for that reason.

228+ if (ev.type == KeyEventType.KeyDown &&

229+ ev.key == Key.DirectionLeft &&

230+ ev.isAltPressed

231+ ) {

232+ if (navController.previousBackStackEntry != null) {

233+ navController.popBackStack()

234+ return@onPreviewKeyEvent true

235+ }

236+ }

237+ return@onPreviewKeyEvent false

238+ }

239+ val route = when (ev.key) {

240+ Key.NumPad1, Key.One -> Routes.SESSIONS

241+ Key.NumPad2, Key.Two -> Routes.SEARCH

242+ Key.NumPad3, Key.Three -> Routes.FILES

243+ Key.NumPad4, Key.Four -> Routes.USAGE

244+ Key.NumPad5, Key.Five -> Routes.MCP

245+ Key.NumPad6, Key.Six -> Routes.SETTINGS

246+ // Ctrl+7 navigates to the server list (the 7th nav-rail destination).

247+ // Previously Ctrl+1..6 covered the other destinations but Servers was

248+ // missing, an inconsistency since the nav rail shows 7 destinations.

249+ Key.NumPad7, Key.Seven -> Routes.SERVERS

250+ else -> null

251+ }

252+ if (route != null) {

253+ // Servers is reachable even without an active connection (it's the start

254+ // destination and handles the not-connected state); the other routes

255+ // require a connection to be meaningful.

256+ if (route == Routes.SERVERS || connection != null) {

257+ navController.navigate(route) {

258+ popUpTo(navController.graph.findStartDestination().id) { saveState = true }

259+ launchSingleTop = true

260+ restoreState = true

261+ }

262+ true

263+ } else false

264+ } else false

265+ },

266+ ) {

267+ val isTwoPane = maxWidth >= NetworkConfig.twoPaneWidthThresholdDp.dp &&

268+ connection != null &&

269+ !isHalfOpened

270+ // On large screens, surface a navigation rail alongside the content so top-level

271+ // destinations (Sessions, Files, Search, …) are one tap away instead of buried in a

272+ // screen's overflow menu. Mirrors the standard large-screen M3 layout.

273+ val showNavRail = maxWidth >= NetworkConfig.navigationRailThresholdDp.dp

274+ // Observe the current destination reactively so the rail's selected item tracks navigation

275+ // (reading currentDestination once would go stale after the first composition).

276+ val currentEntry by navController.currentBackStackEntryAsState()

277+ val currentRoute = currentEntry?.destination?.route

278+

279+ // Open a session requested by a notification tap or deep link, once connected.

280+ LaunchedEffect(pendingOpenSession, connection, isTwoPane) {

281+ val pending = pendingOpenSession ?: return@LaunchedEffect

282+ if (connection == null) return@LaunchedEffect

283+ // If the notification body-tap carries a profile id from a different server,

284+ // switch to it first so the session opens under the server that ran it, not

285+ // whichever is active. The effect re-runs when connection changes (keyed on it),

286+ // so on the second run the profile matches and the open proceeds.

287+ if (pending.profileId != null && connection?.profile?.id != pending.profileId) {

288+ if (!container.connectByProfileId(pending.profileId)) return@LaunchedEffect

289+ return@LaunchedEffect // re-run on the new connection

290+ }

291+ // In two-pane mode the detail pane (TwoPaneSessionChat, hosted on the SESSIONS

292+ // route) consumes the request and opens it in the detail pane. But it only

293+ // exists while the NavHost is on SESSIONS, so if the user is currently on

294+ // Files/Settings/FileView bring SESSIONS back to front first — otherwise the

295+ // pending request is never consumed and the session never opens. Don't consume

296+ // here; let TwoPaneSessionChat's effect do it once it's composed.

297+ if (isTwoPane) {

298+ if (!navController.popBackStack(Routes.SESSIONS, inclusive = false)) {

299+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

300+ }

301+ return@LaunchedEffect

302+ }

303+ container.consumePendingOpenSession()

304+ // Ensure SESSIONS sits on the back stack below the chat destination so backing

305+ // out of the chat lands on the session list (not the server list). Bring SESSIONS

306+ // to front (or push it if a cold-start deep link left only SERVERS on the stack),

307+ // then push chat on top — yielding SERVERS -> SESSIONS -> chat.

308+ if (!navController.popBackStack(Routes.SESSIONS, inclusive = false)) {

309+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

310+ }

311+ navController.navigate(Routes.chat(pending.sessionId)) { launchSingleTop = true }

312+ }

313+

314+ // Deep-linked file open (opencode://file/{path}): navigate to the file viewer once a

315+ // connection exists (the viewer fetches content from the server). Path comes pre-validated

316+ // by MainActivity's deep-link guard. In two-pane mode the detail pane (TwoPaneFileBrowser,

317+ // hosted on the FILES route) consumes the request into its detail pane, mirroring how

318+ // session deep links are routed — so don't consume or push the full-screen viewer here.

319+ LaunchedEffect(pendingOpenFile, connection, isTwoPane) {

320+ val path = pendingOpenFile ?: return@LaunchedEffect

321+ if (connection == null) return@LaunchedEffect

322+ if (isTwoPane) {

323+ if (!navController.popBackStack(Routes.FILES, inclusive = false)) {

324+ navController.navigate(Routes.FILES) { launchSingleTop = true }

90− }) {

325+ }

91− Text("Disconnect")

326+ return@LaunchedEffect

327+ }

328+ container.consumePendingOpenFile()

329+ if (!navController.popBackStack(Routes.FILES, inclusive = false)) {

330+ navController.navigate(Routes.FILES) { launchSingleTop = true }

331+ }

332+ navController.navigate(Routes.fileView(path)) { launchSingleTop = true }

333+ }

334+

335+ val navHost = @Composable {

336+ NavHost(

337+ modifier = Modifier.fillMaxSize(),

338+ navController = navController,

339+ startDestination = Routes.SERVERS,

340+ // Motion-aware transitions: respect the user's reduced-motion setting

341+ // (Developer Options → animator scale 0) by skipping animations entirely.

342+ // Per-destination tuning: a chat→chat navigation (switching peer conversations

343+ // within the same surface) crossfades instead of sliding, so it reads as a peer

344+ // switch rather than drilling into a new section. Top-level destinations and

345+ // detail pushes keep the horizontal slide.

346+ enterTransition = {

347+ if (reducedMotion) {

348+ EnterTransition.None

349+ } else if (targetState.destination.route?.startsWith("${Routes.CHAT}/") == true) {

350+ fadeIn(tween(NetworkConfig.motionFadeDurationMs))

351+ } else {

352+ slideInHorizontally(animationSpec = tween(NetworkConfig.motionSlideDurationMs)) { it * slideDir } +

353+ fadeIn(tween(NetworkConfig.motionFadeDurationMs))

92 }

354 }

93 },

355 },

94− dismissButton = {

356+ exitTransition = {

95− TextButton(onClick = { showDisconnectConfirm = false }) {

357+ if (reducedMotion) {

96− Text("Cancel")

358+ ExitTransition.None

359+ } else {

360+ fadeOut(tween(NetworkConfig.motionFadeDurationMs))

97 }

361 }

98 },

362 },

99− )

363+ popEnterTransition = {

100− }

364+ if (reducedMotion) {

101−

365+ EnterTransition.None

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 }

111 } else {

366 } else {

112− slideInHorizontally { -it } togetherWith slideOutHorizontally { it }

367+ fadeIn(tween(NetworkConfig.motionFadeDurationMs))

113 }

368 }

114 },

369 },

115− label = "screen",

370+ popExitTransition = {

116− ) { screen ->

371+ if (reducedMotion) {

117− when (screen) {

372+ ExitTransition.None

118− Screen.Connect -> ConnectScreen(state, dispatch)

373+ } else {

119− Screen.Sessions -> SessionsScreen(state, dispatch)

374+ slideOutHorizontally(animationSpec = tween(NetworkConfig.motionSlideDurationMs)) { it * slideDir } +

120− Screen.Chat -> ChatScreen(state, dispatch)

375+ fadeOut(tween(NetworkConfig.motionFadeDurationMs))

376+ }

377+ },

378+ ) {

379+

380+ composable(Routes.SERVERS) {

381+ ServerListScreen(

382+ container = container,

383+ onConnected = {

384+ // Only leave the server list if we're still on it. A pending deep-link /

385+ // notification open sets activeConnection (which drives the open-session

386+ // effect: SERVERS -> SESSIONS -> chat) *before* autoConnectDone fires this

387+ // callback, so a blind navigate(SESSIONS) here would slam a second SESSIONS

388+ // on top of the chat it just opened, burying it. Order-independent: if the

389+ // deep link already navigated away from SERVERS, this is a no-op.

390+ if (navController.currentDestination?.route == Routes.SERVERS) {

391+ navController.navigate(Routes.SESSIONS) { launchSingleTop = true }

392+ }

393+ },

394+ onAddProfile = { navController.navigate(Routes.SERVER_EDIT) },

395+ onServerSettings = { id -> navController.navigate(Routes.serverSettings(id)) },

396+ )

397+ }

398+

399+ composable(Routes.SERVER_EDIT) {

400+ ServerEditScreen(

401+ container = container,

402+ onDone = { navController.popBackStack() },

403+ )

404+ }

405+

406+ composable(

407+ route = "${Routes.SERVER_SETTINGS}/{id}",

408+ arguments = listOf(navArgument("id") { type = NavType.StringType }),

409+ ) { entry ->

410+ ServerSettingsScreen(

411+ container = container,

412+ profileId = entry.arguments?.getString("id").orEmpty(),

413+ onDone = { navController.popBackStack() },

414+ )

415+ }

416+

417+ composable(Routes.SESSIONS) {

418+ if (isTwoPane) {

419+ TwoPaneSessionChat(

420+ container = container,

421+ onOpenFiles = { navController.navigate(Routes.FILES) },

422+ onOpenFile = { path -> navController.navigate(Routes.fileView(path)) },

423+ onOpenSettings = { navController.navigate(Routes.SETTINGS) },

424+ onOpenSearch = { navController.navigate(Routes.SEARCH) },

425+ onDisconnect = {

426+ scope.launch { runCatchingCancellable { container.disconnect() } }

427+ navController.popBackStack(Routes.SERVERS, inclusive = false)

428+ },

429+ onAddServer = { navController.navigate(Routes.SERVER_EDIT) },

430+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

431+ )

432+ } else {

433+ SessionListScreen(

434+ container = container,

435+ onOpenSession = { id ->

436+ // Set the draft synchronously in-memory before navigating so the

437+ // ChatScreen sees it on first composition. The async persistence

438+ // to disk happens in the background via draftStore.set.

439+ container.consumePendingShare()?.let { shareText ->

440+ container.draftStore.setImmediate(id, shareText)

441+ scope.launch { runCatchingCancellable { container.draftStore.set(id, shareText) } }

442+ }

443+ navController.navigate(Routes.chat(id))

444+ },

445+ onDisconnect = {

446+ scope.launch { runCatchingCancellable { container.disconnect() } }

447+ navController.popBackStack(Routes.SERVERS, inclusive = false)

448+ },

449+ onOpenFiles = { navController.navigate(Routes.FILES) },

450+ onOpenSettings = { navController.navigate(Routes.SETTINGS) },

451+ onOpenSearch = { navController.navigate(Routes.SEARCH) },

452+ onAddServer = { navController.navigate(Routes.SERVER_EDIT) },

453+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

454+ )

121 }

455 }

122 }

456 }

457+

458+ composable(

459+ route = "${Routes.CHAT}/{sessionId}?focus={focus}",

460+ arguments = listOf(

461+ navArgument("sessionId") { type = NavType.StringType },

462+ navArgument("focus") { type = NavType.StringType; nullable = true; defaultValue = null },

463+ ),

464+ ) { entry ->

465+ ChatScreen(

466+ container = container,

467+ sessionId = entry.arguments?.getString("sessionId").orEmpty(),

468+ focusMessageId = entry.arguments?.getString("focus"),

469+ onBack = { navController.popBackStack() },

470+ onOpenFile = { path -> navController.navigate(Routes.fileView(path)) },

471+ onOpenSession = { id ->

472+ navController.navigate(Routes.chat(id)) {

473+ // Prevent the same chat from being pushed twice when re-tapping a

474+ // session deep link, and keep the back stack bounded when chaining

475+ // chat → linked chat → … (otherwise every hop piles a new entry).

476+ launchSingleTop = true

477+ }

478+ },

479+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

480+ )

481+ }

482+

483+ composable(Routes.FILES) {

484+ if (isTwoPane) {

485+ TwoPaneFileBrowser(

486+ container = container,

487+ onBack = { navController.popBackStack() },

488+ )

489+ } else {

490+ FileBrowserScreen(

491+ container = container,

492+ onOpenFile = { path, line -> navController.navigate(Routes.fileView(path, line)) },

493+ onBack = { navController.popBackStack() },

494+ )

495+ }

496+ }

497+

498+ composable(

499+ route = "${Routes.FILE_VIEW}?path={path}&line={line}",

500+ arguments = listOf(

501+ navArgument("path") { type = NavType.StringType; defaultValue = "" },

502+ navArgument("line") { type = NavType.IntType; defaultValue = -1 },

503+ ),

504+ ) { entry ->

505+ val line = entry.arguments?.getInt("line") ?: -1

506+ FileViewScreen(

507+ container = container,

508+ path = entry.arguments?.getString("path").orEmpty(),

509+ initialLine = line.takeIf { it > 0 },

510+ onBack = { navController.popBackStack() },

511+ )

512+ }

513+

514+ composable(Routes.SETTINGS) {

515+ SettingsScreen(

516+ container = container,

517+ onBack = { navController.popBackStack() },

518+ // Navigate to the server list as a new entry on top of Sessions so the

519+ // user can back out to their conversations. Previously this popped back

520+ // to the root SERVERS destination, which removed Sessions from the stack

521+ // and left the user unable to return to their conversations without

522+ // reconnecting. Pop only Settings, then push SERVERS; back from the

523+ // server list lands on Sessions (the screen the user was on before

524+ // Settings), and connecting pushes a fresh SESSIONS as usual.

525+ onManageServers = {

526+ navController.navigate(Routes.SERVERS) {

527+ popUpTo(Routes.SETTINGS) { inclusive = true }

528+ launchSingleTop = true

529+ }

530+ },

531+ onOpenDiagnostics = { navController.navigate(Routes.DIAGNOSTICS) },

532+ onOpenUsage = { navController.navigate(Routes.USAGE) },

533+ onOpenMcp = { navController.navigate(Routes.MCP) },

534+ onEditProfile = { id -> navController.navigate(Routes.serverSettings(id)) },

535+ )

536+ }

537+

538+ composable(Routes.DIAGNOSTICS) {

539+ DiagnosticsScreen(onBack = { navController.popBackStack() })

540+ }

541+

542+ composable(Routes.USAGE) {

543+ UsageScreen(

544+ container = container,

545+ onBack = { navController.popBackStack() },

546+ onOpenSession = { id -> navController.navigate(Routes.chat(id)) },

547+ )

548+ }

549+

550+ composable(Routes.MCP) {

551+ McpScreen(container = container, onBack = { navController.popBackStack() })

552+ }

553+

554+ composable(Routes.SEARCH) {

555+ GlobalSearchScreen(

556+ container = container,

557+ onOpenSession = { id, focusMessageId -> navController.navigate(Routes.chat(id, focusMessageId)) },

558+ onBack = { navController.popBackStack() },

559+ )

560+ }

561+ }

562+ }

563+

564+ // Collect unread/run state for nav badges (rail on large screens, bottom bar on

565+ // compact screens), so a user on Files/Settings sees pending activity at a glance.

566+ val unread by container.unread.collectAsStateWithLifecycle()

567+ val anyRunActive by container.anyRunActive.collectAsStateWithLifecycle()

568+ val totalUnread = remember(unread) { unread.values.sum() }

569+

570+ if (showNavRail) {

571+ Row(modifier = Modifier.fillMaxSize()) {

572+ LargeScreenNavRail(

573+ currentRoute = currentRoute,

574+ connected = connection != null,

575+ unreadCount = totalUnread,

576+ runActive = anyRunActive,

577+ // Use the standard M3 nav-bar pattern: popUpTo the start destination

578+ // saving state, and restoreState on re-entry, so switching between

579+ // top-level tabs via the rail preserves each tab's scroll/selection

580+ // state and back always exits cleanly instead of popping through

581+ // every sibling tab the user visited.

582+ onNavigate = { route ->

583+ navController.navigate(route) {

584+ popUpTo(navController.graph.findStartDestination().id) {

585+ saveState = true

586+ }

587+ launchSingleTop = true

588+ restoreState = true

589+ }

590+ },

591+ )

592+ Box(modifier = Modifier.weight(1f).fillMaxHeight()) { navHost() }

593+ }

594+ } else {

595+ // Compact screens: a bottom NavigationBar surfaces the top-level destinations one

596+ // tap away (Sessions/Search/Files/Settings/Servers) instead of buried in each

597+ // screen's overflow menu. The navHost fills the space above the bar; the bar's

598+ // own height is accounted for by the NavigationBar's intrinsic measurement.

599+ androidx.compose.foundation.layout.Column(modifier = Modifier.fillMaxSize()) {

600+ Box(modifier = Modifier.weight(1f).fillMaxHeight()) { navHost() }

601+ CompactNavBar(

602+ currentRoute = currentRoute,

603+ connected = connection != null,

604+ unreadCount = totalUnread,

605+ runActive = anyRunActive,

606+ onNavigate = { route ->

607+ navController.navigate(route) {

608+ popUpTo(navController.graph.findStartDestination().id) {

609+ saveState = true

610+ }

611+ launchSingleTop = true

612+ restoreState = true

613+ }

614+ },

615+ )

616+ }

617+ }

618+ }

123 }

619 }

124}

620}

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+3366

@@ -0,0 +1,3366 @@

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.launch

161+import kotlinx.coroutines.withContext

162+import soy.iko.opencode.data.model.Part

163+import soy.iko.opencode.data.model.MessageWithParts

164+import soy.iko.opencode.data.model.AssistantMessage

165+import soy.iko.opencode.data.model.Command

166+import soy.iko.opencode.data.model.ReasoningPart

167+import soy.iko.opencode.data.model.TextPart

168+import soy.iko.opencode.data.model.ToolCompleted

169+import soy.iko.opencode.data.model.ToolError

170+import soy.iko.opencode.data.model.ToolPart

171+import soy.iko.opencode.data.model.ToolRunning

172+import soy.iko.opencode.data.model.FilePart

173+import soy.iko.opencode.data.model.sourcePath

174+import soy.iko.opencode.data.model.inputElement

175+import soy.iko.opencode.data.network.EventStreamClient

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

177+import soy.iko.opencode.di.AppContainer

178+import soy.iko.opencode.R

179+import soy.iko.opencode.ui.components.CommandPalette

180+import soy.iko.opencode.ui.components.ConnectionBanner

181+import soy.iko.opencode.ui.components.DiffView

182+import soy.iko.opencode.ui.components.PaletteAction

183+import soy.iko.opencode.ui.components.LocalReducedMotion

184+import soy.iko.opencode.ui.components.LocalSearchHighlight

185+import soy.iko.opencode.ui.components.reducedMotionAnimateItem

186+import soy.iko.opencode.ui.components.copyToClipboard

187+import soy.iko.opencode.ui.components.LocalRelativeTimeTick

188+import soy.iko.opencode.ui.components.rememberRelativeTimeTick

189+import soy.iko.opencode.ui.components.rememberVisibilityTransitions

190+import soy.iko.opencode.ui.components.showToast

191+import soy.iko.opencode.ui.components.toImageContext

192+import soy.iko.opencode.ui.vmFactory

193+import soy.iko.opencode.util.runCatchingCancellable

194+

195+// Optional message id to scroll to and briefly highlight on first load (from global search).

196+// Consumed once: after the message is scrolled into view and highlighted, the focus is

197+// cleared so subsequent recompositions don't re-trigger the scroll.

198+@OptIn(ExperimentalMaterial3Api::class)

199+@Composable

200+fun ChatScreen(

201+ container: AppContainer,

202+ sessionId: String,

203+ onBack: () -> Unit,

204+ onOpenFile: ((String) -> Unit)? = null,

205+ onOpenSession: ((String) -> Unit)? = null,

206+ focusMessageId: String? = null,

207+ onEditProfile: ((String) -> Unit)? = null,

208+) {

209+ val vm: ChatViewModel = viewModel(key = sessionId, factory = vmFactory { ChatViewModel(container, sessionId) })

210+ val hasMessages by vm.hasMessages.collectAsStateWithLifecycle()

211+ val running by vm.running.collectAsStateWithLifecycle()

212+ val streamInterrupted by vm.streamInterrupted.collectAsStateWithLifecycle()

213+ val aborting by vm.aborting.collectAsStateWithLifecycle()

214+ val loading by vm.loading.collectAsStateWithLifecycle()

215+ val loadError by vm.loadError.collectAsStateWithLifecycle()

216+ val loadErrorInline by vm.loadErrorInline.collectAsStateWithLifecycle()

217+ val refreshing by vm.refreshing.collectAsStateWithLifecycle()

218+ val models by vm.models.collectAsStateWithLifecycle()

219+ val modelsLoading by vm.modelsLoading.collectAsStateWithLifecycle()

220+ val modelsError by vm.modelsError.collectAsStateWithLifecycle()

221+ val selectedModel by vm.selectedModel.collectAsStateWithLifecycle()

222+ val connectionState by vm.connectionState.collectAsStateWithLifecycle()

223+ val reconnectAttempts by vm.reconnectAttempts.collectAsStateWithLifecycle()

224+ val pendingPermission by vm.pendingPermission.collectAsStateWithLifecycle()

225+ val permissionProgress by vm.permissionProgress.collectAsStateWithLifecycle()

226+ val agents by vm.agents.collectAsStateWithLifecycle()

227+ val agentsLoading by vm.agentsLoading.collectAsStateWithLifecycle()

228+ val agentsError by vm.agentsError.collectAsStateWithLifecycle()

229+ val selectedAgent by vm.selectedAgent.collectAsStateWithLifecycle()

230+ val commands by vm.commands.collectAsStateWithLifecycle()

231+ val commandsLoading by vm.commandsLoading.collectAsStateWithLifecycle()

232+ val commandsError by vm.commandsError.collectAsStateWithLifecycle()

233+ val sessionTitle by vm.sessionTitle.collectAsStateWithLifecycle()

234+ val sessionDeleted by vm.sessionDeleted.collectAsStateWithLifecycle()

235+ val draft by vm.draft.collectAsStateWithLifecycle()

236+ val pendingQuote by vm.pendingQuote.collectAsStateWithLifecycle()

237+ val attachments by vm.attachments.collectAsStateWithLifecycle()

238+ val reverted by vm.reverted.collectAsStateWithLifecycle()

239+ val editing by vm.editing.collectAsStateWithLifecycle()

240+ val revertDiff by vm.revertDiff.collectAsStateWithLifecycle()

241+ val shareUrl by vm.shareUrl.collectAsStateWithLifecycle()

242+ val reconnecting by vm.reconnecting.collectAsStateWithLifecycle()

243+ val sendOnEnter by container.settingsStore.sendOnEnter.collectAsStateWithLifecycle(initialValue = true)

244+ val preferredModelId by container.settingsStore.preferredModelId.collectAsStateWithLifecycle(initialValue = "")

245+ val recentModelEntries by container.recentModelsStore.entries.collectAsStateWithLifecycle()

246+ val compactSpacing by container.settingsStore.compactMessageSpacing.collectAsStateWithLifecycle(initialValue = false)

247+ val notifPermission by container.settingsStore.notifPermission.collectAsStateWithLifecycle(initialValue = true)

248+ val isOnline by container.isOnline.collectAsStateWithLifecycle()

249+ val haptics = LocalHapticFeedback.current

250+ val layoutDirection = LocalLayoutDirection.current

251+ val scope = rememberCoroutineScope()

252+ val shareContext = LocalContext.current

253+ val defaultShareSubject = stringResource(R.string.share_subject)

254+ val sessionLabel = stringResource(R.string.session)

255+ val defaultModelLabel = stringResource(R.string.default_model)

256+ val subtitle = remember(selectedModel?.modelLabel, selectedAgent, defaultModelLabel) {

257+ buildString {

258+ append(selectedModel?.modelLabel ?: defaultModelLabel)

259+ selectedAgent?.let { append(" · $it") }

260+ }

261+ }

262+

263+ // Connection profile (with auth) for rendering inline image attachments.

264+ // Collect as state so a server switch recomposes the image context.

265+ val activeConnection by container.activeConnection.collectAsStateWithLifecycle()

266+ val imageContext = remember(activeConnection?.profile) {

267+ activeConnection?.profile?.toImageContext()

268+ }

269+

270+ // Mark this session as read while the user is viewing it; clear on leave so new

271+ // background activity can badge it again.

272+ DisposableEffect(sessionId) {

273+ container.setCurrentSession(sessionId)

274+ onDispose { if (container.currentSession.value == sessionId) container.setCurrentSession(null) }

275+ }

276+

277+ // Navigate away when the session is deleted via SSE so the user isn't left

278+ // on a zombie screen showing a conversation that no longer exists. Surface a

279+ // toast (not a snackbar) because the screen is about to be popped — a snackbar

280+ // would be torn down before the user could read it, while a toast survives.

281+ // Covers both SSE-driven deletion (deleted on another device) and a user-

282+ // initiated delete from the chat overflow menu (deleteSession in ChatViewModel

283+ // sets the same flag on success).

284+ val deletedContext = LocalContext.current

285+ LaunchedEffect(sessionDeleted) {

286+ if (sessionDeleted) {

287+ showToast(deletedContext, deletedContext.getString(R.string.session_deleted_chat))

288+ onBack()

289+ }

290+ }

291+

292+ val snackbar = remember { SnackbarHostState() }

293+ val retryLabel = stringResource(R.string.retry)

294+ val inputFocusRequester = remember { androidx.compose.ui.focus.FocusRequester() }

295+ // Dedicated focus requester for the in-conversation search field. The overflow menu's

296+ // "Find in conversation" and Ctrl+F previously called inputFocusRequester.requestFocus()

297+ // (the composer), so typing went to the composer instead of the search field.

298+ val searchFocusRequester = remember { androidx.compose.ui.focus.FocusRequester() }

299+ var showModelPicker by rememberSaveable { mutableStateOf(false) }

300+ var showAgentPicker by rememberSaveable { mutableStateOf(false) }

301+ var showTitleMenu by rememberSaveable { mutableStateOf(false) }

302+ var showCommandPicker by rememberSaveable { mutableStateOf(false) }

303+ var showExitConfirm by rememberSaveable { mutableStateOf(false) }

304+ var showOverflowMenu by rememberSaveable { mutableStateOf(false) }

305+ var showRenameDialog by rememberSaveable { mutableStateOf(false) }

306+ var showDeleteDialog by rememberSaveable { mutableStateOf(false) }

307+ var showShellDialog by rememberSaveable { mutableStateOf(false) }

308+ var showPalette by rememberSaveable { mutableStateOf(false) }

309+ var showShortcutsDialog by rememberSaveable { mutableStateOf(false) }

310+ var searchActive by rememberSaveable { mutableStateOf(false) }

311+ var chatSearch by rememberSaveable { mutableStateOf("") }

312+ // Index of the currently-focused in-conversation search match (into the filtered list).

313+ // Drives the up/down navigation: the search bar's arrows step through matches and scroll

314+ // the list to each one, mirroring desktop chat apps (the bare filtered list previously

315+ // required reading each message to find the term).

316+ var searchPos by rememberSaveable { mutableIntStateOf(0) }

317+ // Summarize and init (generate AGENTS.md) are irreversible, so a single tap is gated behind

318+ // a confirmation dialog (from both the overflow menu and the command palette).

319+ var showSummarizeConfirm by rememberSaveable { mutableStateOf(false) }

320+ var showInitConfirm by rememberSaveable { mutableStateOf(false) }

321+

322+ // Command-palette entries (keyboard-first: Ctrl+K). Labels resolved here so the remembered

323+ // action list doesn't need a Composable context. Actions map to the same handlers the

324+ // overflow menu drives, so the palette is a keyboard shortcut to them, not a parallel path.

325+ val paletteModelLabel = stringResource(R.string.palette_switch_model)

326+ val paletteAgentLabel = stringResource(R.string.palette_choose_agent)

327+ val paletteCommandLabel = stringResource(R.string.palette_run_command)

328+ val paletteSummarizeLabel = stringResource(R.string.palette_summarize)

329+ val paletteRenameLabel = stringResource(R.string.rename_session_chat)

330+ val paletteShellLabel = stringResource(R.string.run_shell_command)

331+ val paletteActions = remember(

332+ paletteModelLabel, paletteAgentLabel, paletteCommandLabel,

333+ paletteSummarizeLabel, paletteRenameLabel, paletteShellLabel, hasMessages, running,

334+ ) {

335+ buildList {

336+ add(PaletteAction("model", paletteModelLabel) { showModelPicker = true })

337+ add(PaletteAction("agent", paletteAgentLabel) { showAgentPicker = true })

338+ add(PaletteAction("command", paletteCommandLabel) { showCommandPicker = true })

339+ if (hasMessages && !running) add(PaletteAction("summarize", paletteSummarizeLabel) { showSummarizeConfirm = true })

340+ if (!running) add(PaletteAction("shell", paletteShellLabel) { showShellDialog = true })

341+ add(PaletteAction("rename", paletteRenameLabel) { showRenameDialog = true })

342+ }

343+ }

344+

345+ // Keep the screen awake while the agent is working in *this* session. The foreground

346+ // service that holds process priority during a run is managed app-wide off

347+ // container.anyRunActive (see OpencodeApp) so it survives navigating away from the chat

348+ // mid-run — otherwise leaving the screen would drop priority and Doze could choke the

349+ // SSE stream before the completion notification fires.

350+ val currentView = LocalView.current

351+ val appContext = LocalContext.current.applicationContext

352+ DisposableEffect(running) {

353+ currentView.keepScreenOn = running

354+ onDispose { currentView.keepScreenOn = false }

355+ }

356+

357+ LaunchedEffect(Unit) {

358+ vm.errorEvents.collect { event ->

359+ // Only a failed *send* is retryable; attaching Retry to any other error (e.g. a

360+ // message-load failure) would silently re-submit the last prompt on tap.

361+ val result = if (event.retryable) {

362+ snackbar.showSnackbar(message = event.message, actionLabel = retryLabel)

363+ } else {

364+ snackbar.showSnackbar(event.message)

365+ }

366+ if (result == androidx.compose.material3.SnackbarResult.ActionPerformed) vm.retryFailed()

367+ }

368+ }

369+

370+ // Stop-undo: abort() emits the last-sent prompt here so this collector can show a

371+ // "Stopped — Undo" snackbar. Tapping Undo re-sends the prompt, recovering an accidental

372+ // Stop without a confirmation dialog (Stop now happens on first tap).

373+ val undoStopLabel = stringResource(R.string.undo)

374+ val stoppedLabel = stringResource(R.string.run_stopped_undo)

375+ LaunchedEffect(Unit) {

376+ vm.stopUndoEvents.collect { prompt ->

377+ if (prompt != null) {

378+ val result = snackbar.showSnackbar(message = stoppedLabel, actionLabel = undoStopLabel)

379+ if (result == androidx.compose.material3.SnackbarResult.ActionPerformed) vm.resendLastPrompt()

380+ }

381+ }

382+ }

383+

384+ // In-place Undo for a user-initiated session delete. The delete is deferred for an undo

385+ // window on the container; show the snackbar over the conversation the user is viewing so

386+ // they can cancel without being navigated to the session list first. If the window expires

387+ // the scheduled delete sets `sessionDeleted` and the effect below navigates away.

388+ //

389+ // collectLatest (not collect): a serialized collect queues each snackbar behind the

390+ // previous one's full window, so under a rapid re-delete (delete A, then delete the same

391+ // session again, or a delete timed just after the first) the VM delete timer (started at

392+ // emit time) fires before the second snackbar is ever shown — a dead Undo button.

393+ // collectLatest cancels the current snackbar and shows the newest immediately, keeping its

394+ // Undo window aligned with its timer. Tracking `pending` mirrors SessionListScreen: when a

395+ // newer delete supersedes the prior snackbar mid-window, the prior session's deferred REST

396+ // delete (still scheduled on the container's scope) would fire with no reachable Undo.

397+ // Withdrawing it via cancelSessionDelete cancels the timer (no-op if it already fired), so

398+ // no session is silently deleted without a chance to undo.

399+ val undoLabel = stringResource(R.string.undo)

400+ val sessionDeletedLabel = stringResource(R.string.session_deleted_chat)

401+ LaunchedEffect(Unit) {

402+ var pending: String? = null

403+ vm.deleteUndoEvents.collectLatest { id ->

404+ pending?.let { vm.cancelSessionDelete(it) }

405+ pending = id

406+ coroutineScope {

407+ val dismisser = launch {

408+ delay(NetworkConfig.undoDeleteDelayMs)

409+ snackbar.currentSnackbarData?.dismiss()

410+ }

411+ val result = snackbar.showSnackbar(

412+ message = sessionDeletedLabel,

413+ actionLabel = undoLabel,

414+ duration = SnackbarDuration.Indefinite,

415+ )

416+ dismisser.cancel()

417+ if (result == SnackbarResult.ActionPerformed) {

418+ vm.cancelSessionDelete(id)

419+ pending = null

420+ }

421+ }

422+ }

423+ }

424+

425+ // --- Attachments, voice, and share-link plumbing ---

426+ val attachFailedMsg = stringResource(R.string.attachment_failed)

427+ val noCameraMsg = stringResource(R.string.no_camera_app)

428+ val noVoiceMsg = stringResource(R.string.no_voice_app)

429+ val voicePrompt = stringResource(R.string.voice_prompt)

430+ val linkCopiedMsg = stringResource(R.string.link_copied)

431+ val ttsUnavailableMsg = stringResource(R.string.tts_unavailable)

432+

433+ // Count of picks currently being read + base64-encoded off the main thread, so the

434+ // composer can show a staging placeholder immediately (chips only materialize once done).

435+ // Backed by the ViewModel (vm.stagingCount / vm.stagingFileTotal) so the staging state

436+ // survives a configuration change: the encode work runs on viewModelScope (which

437+ // survives rotation), so the counters must live on the VM too — remember { mutableStateOf

438+ // } in the composable would reset to 0 on rotation and lose the staging chip mid-encode.

439+ val stagingCount by vm.stagingCount.collectAsStateWithLifecycle()

440+ val stagingFileTotal by vm.stagingFileTotal.collectAsStateWithLifecycle()

441+

442+ // Convert each picked Uri to a base64 attachment on the VM's scope (survives rotation),

443+ // honoring the per-prompt count cap and surfacing per-file errors via the VM's errorEvents.

444+ fun stageUris(uris: List<Uri>) {

445+ vm.stageUris(uris, appContext)

446+ }

447+

448+ val photoPicker = rememberLauncherForActivityResult(

449+ ActivityResultContracts.PickMultipleVisualMedia(NetworkConfig.maxAttachments),

450+ ) { uris -> stageUris(uris) }

451+

452+ val filePicker = rememberLauncherForActivityResult(

453+ ActivityResultContracts.GetMultipleContents(),

454+ ) { uris -> stageUris(uris) }

455+

456+ // Uri survives a config change mid-capture so the TakePicture result still resolves.

457+ var pendingCaptureUri by rememberSaveable { mutableStateOf<Uri?>(null) }

458+ val cameraLauncher = rememberLauncherForActivityResult(

459+ ActivityResultContracts.TakePicture(),

460+ ) { success ->

461+ val uri = pendingCaptureUri

462+ pendingCaptureUri = null

463+ if (success && uri != null) stageUris(listOf(uri))

464+ }

465+

466+ val voiceLauncher = rememberLauncherForActivityResult(

467+ ActivityResultContracts.StartActivityForResult(),

468+ ) { result ->

469+ if (result.resultCode == Activity.RESULT_OK) {

470+ val spoken = result.data

471+ ?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)

472+ ?.firstOrNull()

473+ ?.takeIf { it.isNotBlank() }

474+ if (spoken != null) {

475+ // Append to the existing draft rather than replacing, so dictation adds to

476+ // whatever the user already typed.

477+ val current = vm.draft.value

478+ val combined = if (current.isBlank()) spoken else "$current $spoken"

479+ vm.updateDraft(combined.take(NetworkConfig.maxDraftLengthChars))

480+ }

481+ }

482+ }

483+

484+ fun launchCamera() {

485+ val uri = newCameraCaptureUri(appContext)

486+ if (uri == null) {

487+ scope.launch { snackbar.showSnackbar(attachFailedMsg) }

488+ return

489+ }

490+ pendingCaptureUri = uri

491+ runCatching { cameraLauncher.launch(uri) }

492+ .onFailure { pendingCaptureUri = null; scope.launch { snackbar.showSnackbar(noCameraMsg) } }

493+ }

494+

495+ fun launchVoice() {

496+ val intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {

497+ putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM)

498+ putExtra(RecognizerIntent.EXTRA_PROMPT, voicePrompt)

499+ }

500+ runCatching { voiceLauncher.launch(intent) }

501+ .onFailure { scope.launch { snackbar.showSnackbar(noVoiceMsg) } }

502+ }

503+

504+ // A freshly-created share link is copied to the clipboard so the user can paste it right away.

505+ LaunchedEffect(Unit) {

506+ vm.shareLinkEvents.collect { url ->

507+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_share), url)

508+ snackbar.showSnackbar(linkCopiedMsg)

509+ }

510+ }

511+

512+ // Navigate to a session freshly branched from a message (branchFrom), once it's created.

513+ // Keyed on Unit (like the sibling one-shot collectors above): keying on the onOpenSession

514+ // lambda would cancel/restart this collector whenever the lambda's identity changes, risking

515+ // a dropped branch-navigation event in the gap. The lambda is wrapped in rememberUpdatedState

516+ // so the Unit-keyed collector invokes the LATEST lambda instead of the one captured at first

517+ // composition — a latent footgun if a future change makes onOpenSession depend on current

518+ // Compose state (e.g. pane-aware routing). The collector itself is never cancelled, so no

519+ // event is dropped.

520+ val branchedMsg = stringResource(R.string.branch_created)

521+ val currentOnOpenSession by rememberUpdatedState(onOpenSession)

522+ LaunchedEffect(Unit) {

523+ vm.branchEvents.collect { newId ->

524+ showToast(shareContext, branchedMsg)

525+ currentOnOpenSession?.invoke(newId)

526+ }

527+ }

528+

529+ // Stage images shared into the app (via the system share sheet) as attachments.

530+ // Keyed on pendingSharedMedia (not Unit) so the effect re-fires when new media arrives

531+ // while this ChatScreen is already composed — which happens in two-pane mode, where the

532+ // detail ChatScreen is persistent (keyed on sessionId) and a LaunchedEffect(Unit) would

533+ // only fire on first composition. consumePendingSharedMedia() atomically drains the

534+ // pending list (compareAndSet to empty), so re-firing on the now-empty value is a no-op.

535+ val pendingSharedMedia by container.pendingSharedMedia.collectAsStateWithLifecycle()

536+ LaunchedEffect(pendingSharedMedia) {

537+ val shared = container.consumePendingSharedMedia()

538+ if (shared.isNotEmpty()) stageUris(shared.map { Uri.parse(it) })

539+ }

540+

541+ fun doSend() {

542+ if (vm.send(draft)) {

543+ // TextHandleMove (a light tick) is semantically right for a send commit;

544+ // LongPress is reserved for long-press/swipe gestures.

545+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

546+ }

547+ }

548+

549+ BackHandler(enabled = running && !showModelPicker && !showAgentPicker && !showCommandPicker) { showExitConfirm = true }

550+

551+ Scaffold(

552+ // Hardware-keyboard shortcuts (tablets / DeX / Chromebooks): Ctrl+K opens the command

553+ // palette; Escape closes it, or stops a run. onPreviewKeyEvent on the Scaffold root sees

554+ // events before the focused text field, but only Ctrl+K / Escape are consumed so normal

555+ // typing (and the composer's own Enter-to-send handling) is untouched.

556+ modifier = Modifier.onPreviewKeyEvent { ev ->

557+ if (ev.type != KeyEventType.KeyDown) return@onPreviewKeyEvent false

558+ when {

559+ ev.isCtrlPressed && ev.key == Key.K -> { showPalette = true; true }

560+ // Ctrl+F opens in-conversation search (the standard find shortcut), focusing

561+ // the field so the user can type immediately.

562+ ev.isCtrlPressed && ev.key == Key.F -> { searchActive = true; true }

563+ ev.key == Key.Escape && showPalette -> { showPalette = false; true }

564+ ev.key == Key.Escape && searchActive -> { searchActive = false; chatSearch = ""; true }

565+ ev.key == Key.Escape && running && !showExitConfirm -> {

566+ vm.abort(); true

567+ }

568+ else -> false

569+ }

570+ },

571+ topBar = {

572+ TopAppBar(

573+ title = {

574+ val changeLabel = stringResource(R.string.change_model_agent)

575+ // The subtitle reads "model · agent", so tapping the title offers *both*

576+ // — a small menu picks which picker to open. Previously the tap went

577+ // straight to the model picker, leaving the agent changeable only via

578+ // the overflow menu despite the title implying otherwise.

579+ Box {

580+ Row(

581+ // mergeDescendants so TalkBack reads the title/subtitle Texts as one

582+ // node; the click label rides on `clickable` (onClickLabel) instead of

583+ // an explicit contentDescription, which would have SUPPRESSED the child

584+ // Texts and announced only "Change model and agent".

585+ modifier = Modifier

586+ .clickable(

587+ role = Role.Button,

588+ onClickLabel = changeLabel,

589+ ) { showTitleMenu = true }

590+ .semantics(mergeDescendants = true) {},

591+ verticalAlignment = Alignment.CenterVertically,

592+ ) {

593+ Column(modifier = Modifier.weight(1f, fill = false)) {

594+ // maxLines=1 + Ellipsis so a long session title can't wrap and

595+ // push the top bar to multiple lines, shifting the whole layout.

596+ Text(

597+ sessionTitle ?: sessionLabel,

598+ maxLines = 1,

599+ overflow = TextOverflow.Ellipsis,

600+ )

601+ Text(

602+ subtitle,

603+ style = MaterialTheme.typography.labelSmall,

604+ color = MaterialTheme.colorScheme.onSurfaceVariant,

605+ maxLines = 1,

606+ overflow = TextOverflow.Ellipsis,

607+ )

608+ }

609+ // Always show the affordance so the title reads as tappable even when

610+ // the model catalog failed to load (models empty). Without it the title

611+ // is indistinguishable from plain text and the pickers are effectively

612+ // undiscoverable — and the dropdown items already disable themselves

613+ // while a catalog is loading or unavailable.

614+ Icon(

615+ Icons.Filled.KeyboardArrowDown,

616+ contentDescription = null,

617+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

618+ modifier = Modifier.size(20.dp),

619+ )

620+ }

621+ DropdownMenu(expanded = showTitleMenu, onDismissRequest = { showTitleMenu = false }) {

622+ DropdownMenuItem(

623+ text = { Text(stringResource(R.string.palette_switch_model)) },

624+ enabled = !modelsLoading || models.isNotEmpty(),

625+ onClick = { showTitleMenu = false; showModelPicker = true },

626+ )

627+ DropdownMenuItem(

628+ text = { Text(stringResource(R.string.palette_choose_agent)) },

629+ enabled = !agentsLoading || agents.isNotEmpty(),

630+ onClick = { showTitleMenu = false; showAgentPicker = true },

631+ )

632+ }

633+ }

634+ },

635+ navigationIcon = {

636+ IconButton(onClick = {

637+ if (running) showExitConfirm = true else onBack()

638+ }) {

639+ Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = stringResource(R.string.back))

640+ }

641+ },

642+ actions = {

643+ // At-a-glance run status in the top bar. When the user is scrolled

644+ // up (jump-to-latest FAB visible), the input-bar Stop button and the

645+ // trailing "working…" row are off-screen, so a top-bar spinner is the

646+ // only signal the agent is still working.

647+ if (running) {

648+ val workingLabel = stringResource(R.string.working)

649+ CircularProgressIndicator(

650+ Modifier.size(18.dp).semantics { contentDescription = workingLabel },

651+ strokeWidth = 2.dp,

652+ )

653+ }

654+ // Manual refresh: forces an SSE reconnect, which re-seeds messages

655+ // from REST. A recovery path when the stream silently drops and the

656+ // auto-reconnect re-seed is slow or fails. Shows a brief spinner as

657+ // immediate tap feedback — the SSE reconnect may not visibly change

658+ // the connection state when already Connected, so without it the tap

659+ // appears to do nothing. Disabled while a run is active: a mid-run

660+ // refresh forces a reconnect that can interrupt the streaming reply,

661+ // and the working spinner already signals "wait" — the recovery path

662+ // is only needed when nothing is actively streaming.

663+ val refreshLabel = stringResource(R.string.refresh)

664+ IconButton(

665+ onClick = { vm.refreshMessages() },

666+ enabled = activeConnection != null && !refreshing && !running,

667+ ) {

668+ if (refreshing) {

669+ CircularProgressIndicator(

670+ Modifier.size(18.dp).semantics { contentDescription = refreshLabel },

671+ strokeWidth = 2.dp,

672+ )

673+ } else {

674+ Icon(Icons.Filled.Refresh, contentDescription = refreshLabel)

675+ }

676+ }

677+ // Overflow menu consolidates the less-frequent actions (share,

678+ // commands, agent, model, rename, delete) so the top bar stays

679+ // scannable on narrow phones — previously 5 icons crowded the bar

680+ // alongside the back button and tappable title. Catalog-loading

681+ // spinners stay inline (next to the overflow) so a load state is

682+ // visible without opening the menu.

683+ val moreLabel = stringResource(R.string.more)

684+ val loadingLabel = stringResource(R.string.loading)

685+ val shareLabel = stringResource(R.string.share_conversation)

686+ val copyAsMarkdownLabel = stringResource(R.string.copy_as_markdown)

687+ val shareAsJsonLabel = stringResource(R.string.share_as_json)

688+ val copyAsJsonLabel = stringResource(R.string.copy_as_json)

689+ val commandsLabel = stringResource(R.string.commands)

690+ val renameLabel = stringResource(R.string.rename_session_chat)

691+ val deleteLabel = stringResource(R.string.delete_session_chat)

692+ val createShareLabel = stringResource(R.string.create_share_link)

693+ val copyShareLabel = stringResource(R.string.copy_share_link)

694+ val stopShareLabel = stringResource(R.string.stop_sharing)

695+ val summarizeLabel = stringResource(R.string.summarize_conversation)

696+ val initLabel = stringResource(R.string.generate_agents_md)

697+ val shellLabel = stringResource(R.string.run_shell_command)

698+ Box {

699+ IconButton(onClick = { showOverflowMenu = true }) {

700+ Icon(Icons.Filled.MoreVert, contentDescription = moreLabel)

701+ }

702+ DropdownMenu(

703+ expanded = showOverflowMenu,

704+ onDismissRequest = { showOverflowMenu = false },

705+ ) {

706+ DropdownMenuItem(

707+ text = { Text(shareLabel) },

708+ enabled = hasMessages,

709+ onClick = {

710+ showOverflowMenu = false

711+ scope.launch {

712+ val md = withContext(Dispatchers.Default) {

713+ buildConversationMarkdown(vm.messages.value, sessionTitle)

714+ }

715+ val send = android.content.Intent(android.content.Intent.ACTION_SEND).apply {

716+ type = "text/markdown"

717+ putExtra(android.content.Intent.EXTRA_SUBJECT, sessionTitle ?: defaultShareSubject)

718+ putExtra(android.content.Intent.EXTRA_TEXT, md)

719+ }

720+ runCatchingCancellable { shareContext.startActivity(android.content.Intent.createChooser(send, shareLabel)) }

721+ .onFailure { showToast(shareContext, shareContext.getString(R.string.no_share_app)) }

722+ }

723+ },

724+ )

725+ // Copy the whole conversation as Markdown to the clipboard, so a

726+ // user can paste into another app without the share-sheet round-trip.

727+ DropdownMenuItem(

728+ text = { Text(copyAsMarkdownLabel) },

729+ enabled = hasMessages,

730+ onClick = {

731+ showOverflowMenu = false

732+ scope.launch {

733+ val md = withContext(Dispatchers.Default) {

734+ buildConversationMarkdown(vm.messages.value, sessionTitle)

735+ }

736+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_message), md)

737+ }

738+ },

739+ )

740+ // Lossless JSON share: the full List<MessageWithParts> serialized with

741+ // the shared OpencodeJson, so tool outputs, file sources, and reasoning

742+ // survive verbatim (the Markdown export truncates/summarizes them).

743+ DropdownMenuItem(

744+ text = { Text(shareAsJsonLabel) },

745+ enabled = hasMessages,

746+ onClick = {

747+ showOverflowMenu = false

748+ scope.launch {

749+ val json = withContext(Dispatchers.Default) {

750+ buildConversationJson(vm.messages.value)

751+ }

752+ val send = android.content.Intent(android.content.Intent.ACTION_SEND).apply {

753+ type = "application/json"

754+ putExtra(android.content.Intent.EXTRA_SUBJECT, sessionTitle ?: defaultShareSubject)

755+ putExtra(android.content.Intent.EXTRA_TEXT, json)

756+ }

757+ runCatchingCancellable { shareContext.startActivity(android.content.Intent.createChooser(send, shareAsJsonLabel)) }

758+ .onFailure { showToast(shareContext, shareContext.getString(R.string.no_share_app)) }

759+ }

760+ },

761+ )

762+ DropdownMenuItem(

763+ text = { Text(copyAsJsonLabel) },

764+ enabled = hasMessages,

765+ onClick = {

766+ showOverflowMenu = false

767+ scope.launch {

768+ val json = withContext(Dispatchers.Default) {

769+ buildConversationJson(vm.messages.value)

770+ }

771+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_message), json)

772+ }

773+ },

774+ )

775+ DropdownMenuItem(

776+ text = { Text(commandsLabel) },

777+ enabled = !commandsLoading || commands.isNotEmpty(),

778+ onClick = { showOverflowMenu = false; showCommandPicker = true },

779+ )

780+ DropdownMenuItem(

781+ text = { Text(stringResource(R.string.keyboard_shortcuts)) },

782+ onClick = { showOverflowMenu = false; showShortcutsDialog = true },

783+ )

784+ DropdownMenuItem(

785+ text = { Text(stringResource(R.string.find_in_conversation)) },

786+ onClick = {

787+ showOverflowMenu = false

788+ searchActive = true

789+ // Focus is requested by the LaunchedEffect(searchActive)

790+ // below, which waits for the search field to be composed

791+ // before requesting focus (calling requestFocus here would

792+ // target a field that isn't in the composition yet).

793+ },

794+ )

795+ androidx.compose.material3.HorizontalDivider()

796+ // Session sharing: create a public link, copy an existing one, or revoke it.

797+ if (shareUrl == null) {

798+ DropdownMenuItem(

799+ text = { Text(createShareLabel) },

800+ enabled = hasMessages,

801+ onClick = { showOverflowMenu = false; vm.shareSession() },

802+ )

803+ } else {

804+ DropdownMenuItem(

805+ text = { Text(copyShareLabel) },

806+ onClick = {

807+ showOverflowMenu = false

808+ shareUrl?.let {

809+ copyToClipboard(shareContext, shareContext.getString(R.string.clip_label_share), it)

810+ scope.launch { snackbar.showSnackbar(linkCopiedMsg) }

811+ }

812+ },

813+ )

814+ DropdownMenuItem(

815+ text = { Text(stopShareLabel) },

816+ onClick = { showOverflowMenu = false; vm.unshareSession() },

817+ )

818+ }

819+ DropdownMenuItem(

820+ text = { Text(summarizeLabel) },

821+ enabled = hasMessages && !running,

822+ onClick = { showOverflowMenu = false; showSummarizeConfirm = true },

823+ )

824+ DropdownMenuItem(

825+ text = { Text(initLabel) },

826+ enabled = !running,

827+ onClick = { showOverflowMenu = false; showInitConfirm = true },

828+ )

829+ DropdownMenuItem(

830+ text = { Text(shellLabel) },

831+ enabled = !running,

832+ onClick = { showOverflowMenu = false; showShellDialog = true },

833+ )

834+ androidx.compose.material3.HorizontalDivider()

835+ DropdownMenuItem(

836+ text = { Text(renameLabel) },

837+ onClick = { showOverflowMenu = false; showRenameDialog = true },

838+ )

839+ DropdownMenuItem(

840+ text = { Text(deleteLabel, color = MaterialTheme.colorScheme.error) },

841+ onClick = { showOverflowMenu = false; showDeleteDialog = true },

842+ )

843+ }

844+ // While a catalog is initially loading (empty list + loading flag),

845+ // show a tiny inline spinner beside the overflow so the user can see

846+ // a load is in progress without opening the menu. Once loaded the

847+ // spinner disappears; the menu items are always enabled (tapping a

848+ // picker with no items shows the "no models/agents/commands" state).

849+ val catalogLoading = (commandsLoading && commands.isEmpty()) ||

850+ (agentsLoading && agents.isEmpty()) ||

851+ (modelsLoading && models.isEmpty())

852+ if (catalogLoading) {

853+ CircularProgressIndicator(

854+ Modifier

855+ .align(Alignment.TopEnd)

856+ .size(10.dp)

857+ .semantics { contentDescription = loadingLabel },

858+ strokeWidth = 1.dp,

859+ )

860+ }

861+ }

862+ },

863+ )

864+ },

865+ snackbarHost = { SnackbarHost(snackbar) },

866+ bottomBar = {

867+ val queuedFollowUp by vm.queuedFollowUp.collectAsStateWithLifecycle()

868+ val todoPlan by vm.todoPlan.collectAsStateWithLifecycle()

869+ val queuedOffline by vm.outbox.collectAsStateWithLifecycle()

870+ val outboxSending by container.outboxSending.collectAsStateWithLifecycle()

871+ Column {

872+ // Pinned above the composer so the agent's plan and progress stay visible

873+ // while scrolled up mid-run; renders nothing when there's no plan.

874+ TodoPlanBar(todoPlan)

875+ val bannerMotion = rememberVisibilityTransitions()

876+ AnimatedVisibility(

877+ visible = reverted,

878+ enter = bannerMotion.enter,

879+ exit = bannerMotion.exit,

880+ ) {

881+ RevertBanner(

882+ diff = revertDiff,

883+ isEditing = editing,

884+ onUndo = { vm.unrevert() },

885+ )

886+ }

887+ AnimatedVisibility(

888+ visible = queuedOffline.isNotEmpty(),

889+ enter = bannerMotion.enter,

890+ exit = bannerMotion.exit,

891+ ) {

892+ OutboxBanner(

893+ count = queuedOffline.size,

894+ sending = outboxSending,

895+ onFlush = { vm.flushQueued() },

896+ onDiscard = { vm.discardAllQueued() },

897+ )

898+ }

899+ AnimatedVisibility(

900+ visible = pendingQuote != null,

901+ enter = bannerMotion.enter,

902+ exit = bannerMotion.exit,

903+ ) {

904+ pendingQuote?.let { QuoteReplyBanner(it, onCancel = { vm.cancelQuoteReply() }) }

905+ }

906+ ChatInputBar(

907+ value = draft,

908+ onValueChange = vm::updateDraft,

909+ running = running,

910+ aborting = aborting,

911+ enabled = activeConnection != null,

912+ sendOnEnter = sendOnEnter,

913+ onSend = ::doSend,

914+ onAbort = { vm.abort() },

915+ queuedFollowUp = queuedFollowUp,

916+ onQueueFollowUp = vm::queueFollowUp,

917+ onCancelQueue = { vm.queueFollowUp("") },

918+ focusRequester = inputFocusRequester,

919+ attachments = attachments,

920+ staging = stagingCount > 0,

921+ stagingFileCount = stagingFileTotal,

922+ onRemoveAttachment = vm::removeAttachment,

923+ onPickPhoto = {

924+ photoPicker.launch(

925+ PickVisualMediaRequest(ActivityResultContracts.PickVisualMedia.ImageOnly),

926+ )

927+ },

928+ onPickFile = { filePicker.launch("*/*") },

929+ onCamera = { launchCamera() },

930+ onVoice = { launchVoice() },

931+ onPasteImage = { stageUris(it) },

932+ commands = commands,

933+ onRunCommand = { cmd ->

934+ vm.runCommand(cmd)

935+ // Clear the draft so the typed /prefix doesn't linger after the

936+ // command fires (the command picker confirmation, if any, is

937+ // handled inside runCommand).

938+ vm.updateDraft("")

939+ },

940+ )

941+ }

942+ },

943+ ) { padding ->

944+ // Collect messages inside the content lambda so streaming token updates

945+ // recompose only this subtree, not the top bar / input bar / 20+ other

946+ // state reads in the ChatScreen body.

947+ val messages by vm.messages.collectAsStateWithLifecycle()

948+ val optimisticStatuses by vm.optimisticStatuses.collectAsStateWithLifecycle()

949+ val listState = rememberLazyListState()

950+ val contentScope = rememberCoroutineScope()

951+ val timeTick = rememberRelativeTimeTick()

952+ // Dismiss the soft keyboard when the user scrolls the message list, a standard Android

953+ // chat affordance for reading while the IME is open. Watching isScrollInProgress via

954+ // snapshotFlow avoids wiring a nested scroll connection and fires on any scroll gesture.

955+ val keyboardController = androidx.compose.ui.platform.LocalSoftwareKeyboardController.current

956+ androidx.compose.runtime.LaunchedEffect(listState) {

957+ androidx.compose.runtime.snapshotFlow { listState.isScrollInProgress }

958+ .distinctUntilChanged()

959+ .collect { scrolling -> if (scrolling) keyboardController?.hide() }

960+ } // Group messages by day and interleave date separators so a long conversation

961+ // has visual "Today"/"Yesterday"/date breaks. Computed once per messages

962+ // emission (memoized) so a scroll-induced recomposition doesn't re-scan. Lives

963+ // outside the PullToRefreshBox so the auto-scroll effects below can reference

964+ // the same list the LazyColumn renders (separators shift the indices vs. the

965+ // raw messages list, so scroll targets must be in listItems space).

966+ val todayLabel = stringResource(R.string.today)

967+ val yesterdayLabel = stringResource(R.string.yesterday)

968+ // In-conversation search: when active, narrow to messages whose text contains the query.

969+ // Computed on the filtered set so day separators still align with the visible messages.

970+ // Debounced + off-main-thread so a keystroke-by-keystroke filter walk over a long

971+ // conversation (with many tool parts whose state stringification is non-trivial)

972+ // doesn't jank the UI. produceState yields the empty list immediately and publishes

973+ // the filtered result once the debounce settles.

974+ val searchQuery = chatSearch.trim()

975+ // When no search is active, skip the produceState indirection entirely and use the

976+ // messages list directly. produceState keyed on (messages, searchQuery) re-launches

977+ // its coroutine on every messages emission (every streamed token) even when the

978+ // query is empty — the body just re-assigns `value = messages`, but the coroutine

979+ // churn (launch + cancel + state write) ~20x/sec is pure overhead. Using `messages`

980+ // directly when there's no search avoids that, and `buildMessageListItems` keys its

981+ // own remember on the resulting list identity either way.

982+ val searchMessages: List<MessageWithParts> = if (searchQuery.isEmpty()) {

983+ messages

984+ } else {

985+ // Capture the messages list via rememberUpdatedState so the latest list is read

986+ // when the debounce completes, WITHOUT re-launching the produceState coroutine on

987+ // every messages emission. Keying produceState on `messages` restarts the debounce

988+ // delay from zero on every streamed token (~20×/sec); if tokens arrive faster than

989+ // the debounce interval the filter never runs and search shows "no matches" for the

990+ // entire run. Keying only on `searchQuery` lets the debounce settle once per query

991+ // while still filtering against the most recent list.

992+ val currentMessages by rememberUpdatedState(messages)

993+ val filtered by produceState(

994+ initialValue = emptyList(),

995+ searchQuery,

996+ ) {

997+ // Debounce: wait for the user to stop typing before running the filter,

998+ // so each keystroke doesn't kick off a fresh scan.

999+ kotlinx.coroutines.delay(NetworkConfig.chatSearchDebounceMs)

1000+ // Run the filter off the main thread — the walk stringifies tool state

1001+ // and scans every part of every message, which is non-trivial work for a

1002+ // long conversation.

1003+ value = withContext(Dispatchers.Default) {

1004+ currentMessages.filter { m ->

1005+ m.parts.any { p ->

1006+ when (p) {

1007+ is TextPart -> p.text.contains(searchQuery, ignoreCase = true)

1008+ is ReasoningPart -> p.text.contains(searchQuery, ignoreCase = true)

1009+ is ToolPart -> {

1010+ // Match the tool name plus its running/completed/error text and the

1011+ // stringified input, so searching for an error string or a file the

1012+ // tool touched actually finds the message it appeared in.

1013+ p.tool.contains(searchQuery, ignoreCase = true) ||

1014+ (p.state is ToolRunning && p.state.title?.contains(searchQuery, ignoreCase = true) == true) ||

1015+ (p.state is ToolCompleted && (p.state.title?.contains(searchQuery, ignoreCase = true) == true ||

1016+ p.state.output?.contains(searchQuery, ignoreCase = true) == true)) ||

1017+ (p.state is ToolError && p.state.error?.contains(searchQuery, ignoreCase = true) == true) ||

1018+ p.state.inputElement()?.toString()?.contains(searchQuery, ignoreCase = true) == true

1019+ }

1020+ is FilePart -> p.filename?.contains(searchQuery, ignoreCase = true) == true ||

1021+ p.sourcePath?.contains(searchQuery, ignoreCase = true) == true

1022+ else -> false

1023+ }

1024+ }

1025+ }

1026+ }

1027+ }

1028+ filtered

1029+ }

1030+ // Keep the focused-match index in range as the query (and thus the match set) changes.

1031+ // A new query resets to the first match (keyed on searchQuery alone so any change —

1032+ // even one that still yields enough matches — jumps to index 0 rather than carrying

1033+ // the old index over to a semantically unrelated message). A shrunk set clamps to

1034+ // the last valid index (keyed on size so a content refresh that shrinks the matches

1035+ // without a query change doesn't leave searchPos out of range).

1036+ LaunchedEffect(searchQuery) {

1037+ searchPos = 0

1038+ }

1039+ LaunchedEffect(searchMessages.size) {

1040+ if (searchPos >= searchMessages.size) searchPos = 0

1041+ }

1042+ val listItems = remember(searchMessages, todayLabel, yesterdayLabel) {

1043+ buildMessageListItems(searchMessages, todayLabel, yesterdayLabel)

1044+ }

1045+ // listItems is a plain (non-snapshot) local, rebuilt each recomposition. The

1046+ // derivedStateOf and snapshotFlow lambdas below are created once (keyless

1047+ // remember / LaunchedEffect(Unit)); reading `listItems` directly inside them

1048+ // would capture the first composition's list — which is empty, since `messages`

1049+ // starts empty — freezing it forever. That pinned isPinnedToBottom at true and

1050+ // AutoScrollSignal.size at 0, breaking streaming auto-scroll and the

1051+ // jump-to-latest FAB. rememberUpdatedState hands those lambdas a stable State

1052+ // whose value tracks the latest list.

1053+ val currentListItems by rememberUpdatedState(listItems)

1054+

1055+ // New-content signal for the jump-to-latest FAB: counts how many new items arrived

1056+ // while the user was scrolled away from the bottom, cleared once they return. A count

1057+ // (vs. a bare dot) tells the user how much they missed at a glance.

1058+ var newContentCount by remember { mutableIntStateOf(0) }

1059+

1060+ val isPinnedToBottom by remember {

1061+ derivedStateOf {

1062+ val lastVisible = listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index ?: -1

1063+ // When a run is active, the LazyColumn has one trailing "__typing"

1064+ // item after the last list item. Account for it so "pinned to bottom"

1065+ // includes the working indicator — otherwise the pin check targets

1066+ // listItems.lastIndex, the typing row sits just below the viewport,

1067+ // and the user never sees the progress indicator even when pinned.

1068+ val items = currentListItems

1069+ val effectiveLast = if (running) items.size else items.lastIndex

1070+ lastVisible >= effectiveLast || items.isEmpty()

1071+ }

1072+ }

1073+

1074+ // Jump to the newest message once, when the conversation first loads. Guarded by a

1075+ // saveable one-shot flag so it doesn't re-fire on recomposition after a config change

1076+ // (rotation) — rememberLazyListState restores the user's scroll offset, and an

1077+ // unconditional scrollToItem here would clobber it, snapping them back to the bottom.

1078+ var didInitialScroll by rememberSaveable { mutableStateOf(false) }

1079+ LaunchedEffect(listItems.isNotEmpty()) {

1080+ if (listItems.isNotEmpty() && !didInitialScroll) {

1081+ // When a run is active the LazyColumn has a trailing "__typing" row at

1082+ // listItems.size; target it (not listItems.lastIndex) so deep-linking into a

1083+ // running session lands truly pinned to bottom and streaming auto-scroll engages.

1084+ listState.scrollToItem(if (running) listItems.size else listItems.lastIndex)

1085+ didInitialScroll = true

1086+ }

1087+ }

1088+

1089+ // When a run starts, the LazyColumn gains a trailing "__typing" row, so

1090+ // effectiveLast jumps from listItems.lastIndex to listItems.size and the

1091+ // isPinnedToBottom check flips to false the instant you send — freezing

1092+ // auto-scroll. If the user was pinned to the last item just before the run

1093+ // began, bring the typing row into view so the pin (and streaming follow) is

1094+ // preserved. Guard on the raw last-visible index (isPinnedToBottom has already

1095+ // recomputed to false by now) so we don't scroll when the user had scrolled up.

1096+ LaunchedEffect(running) {

1097+ if (running && listItems.isNotEmpty()) {

1098+ val lastVisible = listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index ?: -1

1099+ if (lastVisible >= listItems.lastIndex) {

1100+ runCatchingCancellable { listState.animateScrollToItem(listItems.size) }

1101+ }

1102+ }

1103+ }

1104+

1105+ // Scroll the focused search match into view whenever the user steps through results with

1106+ // the up/down arrows. Resolves the filtered message to its slot in listItems (which

1107+ // includes date separators) and animates there.

1108+ LaunchedEffect(searchPos, searchQuery, listItems) {

1109+ if (!searchActive || searchQuery.isEmpty()) return@LaunchedEffect

1110+ val target = searchMessages.getOrNull(searchPos) ?: return@LaunchedEffect

1111+ val index = listItems.indexOfFirst {

1112+ it is MessageListItem.Message && it.message.info.id == target.info.id

1113+ }

1114+ if (index >= 0) runCatchingCancellable { listState.animateScrollToItem(index) }

1115+ }

1116+

1117+ // Global-search deep link: scroll to and briefly highlight the matched message. The

1118+ // focus id is threaded through the chat route from GlobalSearchScreen. The highlight

1119+ // clears itself after a short delay so the user can re-read the surrounding context

1120+ // without a persistent marker. Runs once per focusMessageId (cleared on consume).

1121+ var focusedMessageId by remember(focusMessageId) { mutableStateOf(focusMessageId) }

1122+ LaunchedEffect(focusedMessageId, listItems) {

1123+ val focus = focusedMessageId ?: return@LaunchedEffect

1124+ if (listItems.isEmpty()) return@LaunchedEffect

1125+ val index = listItems.indexOfFirst {

1126+ it is MessageListItem.Message && it.message.info.id == focus

1127+ }

1128+ if (index < 0) return@LaunchedEffect

1129+ runCatchingCancellable { listState.animateScrollToItem(index) }

1130+ kotlinx.coroutines.delay(2500)

1131+ focusedMessageId = null

1132+ }

1133+

1134+ // Scroll to bottom when the IME opens and the user was already pinned to bottom, so the

1135+ // latest reply stays visible as the composer rises. Without this the IME can obscure the

1136+ // last message even though the user was reading it a moment ago. WindowInsets.ime is a

1137+ // @Composable property, so we read it inside a snapshotFlow registered in the composable

1138+ // scope; the flow re-emits whenever the IME inset changes (open/close transitions).

1139+ val density = androidx.compose.ui.platform.LocalDensity.current

1140+ var wasImeOpen by remember { mutableStateOf(false) }

1141+ val imeBottomPx = WindowInsets.ime.getBottom(density)

1142+ androidx.compose.runtime.LaunchedEffect(imeBottomPx, listItems.isNotEmpty(), isPinnedToBottom) {

1143+ if (listItems.isEmpty()) return@LaunchedEffect

1144+ val imeOpen = imeBottomPx > 0

1145+ // Scroll to bottom only on the open transition (not close) and only when the user

1146+ // was already pinned to bottom — otherwise we'd yank them out of a mid-history read.

1147+ val shouldScroll = imeOpen && !wasImeOpen && isPinnedToBottom

1148+ if (shouldScroll) {

1149+ runCatchingCancellable {

1150+ listState.animateScrollToItem(if (running) listItems.size else listItems.lastIndex)

1151+ }

1152+ }

1153+ wasImeOpen = imeOpen

1154+ }

1155+

1156+ LaunchedEffect(Unit) {

1157+ var prevSize = 0

1158+ var prevLen = 0

1159+ snapshotFlow {

1160+ // Track list size + the streaming length of the last part so we auto-scroll

1161+ // as content arrives, plus the pinned flag. A small data class with primitive

1162+ // fields avoids the per-frame boxing that Triple<Int,Int,Boolean> pays

1163+ // (snapshotFlow re-evaluates this lambda every snapshot), and reading only the

1164+ // last part's length is O(1) vs. a sumOf over every part. Covering reasoning

1165+ // and tool output — not just TextPart — keeps a pinned view following a long

1166+ // reasoning/tool block while it streams (previously it stalled at 0).

1167+ val lastLen = streamingContentLength(messages.lastOrNull()?.parts?.lastOrNull())

1168+ AutoScrollSignal(currentListItems.size, lastLen, isPinnedToBottom)

1169+ }.collect { signal ->

1170+ if (signal.pinned) {

1171+ // Back at the bottom: clear the new-content badge.

1172+ newContentCount = 0

1173+ if (signal.size > 0) {

1174+ // Scroll to the effective last index, including the trailing

1175+ // "__typing" row when a run is active so the working indicator

1176+ // is brought into view (not just the last message).

1177+ val items = currentListItems

1178+ val target = if (running) items.size else items.lastIndex

1179+ listState.scrollToItem(target)

1180+ }

1181+ } else if (signal.size > prevSize || signal.lastTextLength > prevLen) {

1182+ // Content arrived while scrolled up — increment the jump-to-latest badge.

1183+ // Only count whole new items (not per-token growth) so the number reflects

1184+ // new messages, not a token count.

1185+ if (signal.size > prevSize) newContentCount += signal.size - prevSize

1186+ else if (newContentCount == 0) newContentCount = 1

1187+ }

1188+ prevSize = signal.size

1189+ prevLen = signal.lastTextLength

1190+ }

1191+ }

1192+

1193+ CompositionLocalProvider(LocalRelativeTimeTick provides timeTick) {

1194+ // The bottomBar (ChatInputBar) already has imePadding, and the Scaffold's

1195+ // content padding accounts for the bottomBar's raised height, so the message

1196+ // list is already above the keyboard. Adding imePadding here would double-apply

1197+ // the IME inset and push messages too far up.

1198+ //

1199+ // BoxWithConstraints so the FABs and search bar can align to the capped (800dp)

1200+ // message list on wide screens instead of floating at the screen edges — on a

1201+ // tablet the list is a centered column, so edge-aligned FABs are visually detached.

1202+ // The horizontal margin below is applied to the FAB/search containers so they

1203+ // track the list's left/right edges.

1204+ androidx.compose.foundation.layout.BoxWithConstraints(

1205+ modifier = Modifier.fillMaxSize().padding(padding),

1206+ ) {

1207+ val screenMaxWidth = maxWidth

1208+ val listMaxWidth = NetworkConfig.chatContentMaxWidthDp.dp

1209+ // Horizontal margin between the capped list's edge and the screen edge (0 on

1210+ // screens narrower than the cap). Applied as start/end padding so the FABs and

1211+ // search bar sit at the list's edges, not the screen's.

1212+ val sideMargin = ((screenMaxWidth - listMaxWidth) / 2).coerceAtLeast(0.dp)

1213+ if (activeConnection == null) {

1214+ Column(

1215+ modifier = Modifier.align(Alignment.Center).padding(24.dp),

1216+ horizontalAlignment = Alignment.CenterHorizontally,

1217+ ) {

1218+ Text(

1219+ stringResource(R.string.not_connected),

1220+ color = MaterialTheme.colorScheme.error,

1221+ )

1222+ Spacer(Modifier.size(12.dp))

1223+ Button(onClick = { vm.reconnect() }, enabled = !reconnecting) {

1224+ if (reconnecting) {

1225+ CircularProgressIndicator(

1226+ Modifier.size(20.dp),

1227+ color = MaterialTheme.colorScheme.onPrimary,

1228+ strokeWidth = 2.dp,

1229+ )

1230+ } else {

1231+ Text(stringResource(R.string.reconnect))

1232+ }

1233+ }

1234+ }

1235+ } else {

1236+ val bannerVisible = !isOnline || connectionState != EventStreamClient.ConnectionState.Connected

1237+ // Measure the banner's actual height instead of hardcoding 44dp. At large

1238+ // accessibility font scales the banner's labelMedium text + spinner + Retry

1239+ // button exceed 44dp, so a fixed inset lets the first message hide behind it

1240+ // (the same hazard FileViewScreen's overlay calls out). onSizeChanged only

1241+ // fires while the banner is composed (visible), so gate the inset on

1242+ // bannerVisible and fall back to 44dp until the first measurement arrives.

1243+ var bannerHeightPx by remember { mutableIntStateOf(0) }

1244+ // Track the search bar height so the list's top padding can grow when search

1245+ // is active — otherwise a scrolled-to match lands at index 0, hidden behind

1246+ // the floating search bar (the "scroll-under-the-search-bar" bug).

1247+ var searchbarHeightPx by remember { mutableIntStateOf(0) }

1248+ val density = LocalDensity.current

1249+ val topPad = if (bannerVisible) {

1250+ if (bannerHeightPx > 0) {

1251+ with(density) { bannerHeightPx.toDp() } + 4.dp

1252+ } else {

1253+ 44.dp

1254+ }

1255+ } else {

1256+ 16.dp

1257+ } + if (searchActive && searchbarHeightPx > 0) {

1258+ with(density) { searchbarHeightPx.toDp() } + 4.dp

1259+ } else {

1260+ 0.dp

1261+ }

1262+ ConnectionBanner(

1263+ state = connectionState,

1264+ modifier = Modifier.align(Alignment.TopCenter).onSizeChanged { bannerHeightPx = it.height },

1265+ isOnline = isOnline,

1266+ // On a hard endpoint failure, retry by forcing an SSE reconnect (which

1267+ // re-seeds from REST). refreshMessages is the right recovery path

1268+ // when the connection is present but the stream died; reconnect()

1269+ // is the path when the whole connection is gone (handled by the

1270+ // separate "Not connected" state below).

1271+ onRetry = { vm.refreshMessages() },

1272+ // On an auth failure (401/403), retrying with the same bad credentials

1273+ // is futile — offer a one-tap path to edit the active profile's

1274+ // credentials instead of making the user hunt for the server list.

1275+ onEditCredentials = {

1276+ val profileId = activeConnection?.profile?.id

1277+ if (profileId != null) onEditProfile?.invoke(profileId)

1278+ },

1279+ reconnectAttempts = reconnectAttempts,

1280+ )

1281+ // Persistent inline error banner for a mid-conversation load failure.

1282+ // Unlike the one-shot snackbar (which fires once per streak then goes

1283+ // silent), this stays visible until the stream recovers, so a persistent

1284+ // outage doesn't read as "everything is fine" after the snackbar dismisses.

1285+ // Anchored at the top, below the connection banner, so it doesn't overlap

1286+ // the message list.

1287+ if (loadErrorInline && hasMessages) {

1288+ Surface(

1289+ color = MaterialTheme.colorScheme.errorContainer,

1290+ shape = MaterialTheme.shapes.small,

1291+ modifier = Modifier

1292+ .align(Alignment.TopCenter)

1293+ .padding(top = if (bannerVisible) topPad else 8.dp)

1294+ .padding(horizontal = 16.dp)

1295+ .semantics { liveRegion = LiveRegionMode.Polite },

1296+ ) {

1297+ Row(

1298+ modifier = Modifier.padding(horizontal = 12.dp, vertical = 8.dp),

1299+ verticalAlignment = Alignment.CenterVertically,

1300+ horizontalArrangement = Arrangement.spacedBy(8.dp),

1301+ ) {

1302+ Icon(

1303+ Icons.Filled.ErrorOutline,

1304+ contentDescription = null,

1305+ modifier = Modifier.size(16.dp),

1306+ tint = MaterialTheme.colorScheme.onErrorContainer,

1307+ )

1308+ Text(

1309+ stringResource(R.string.load_error_persistent),

1310+ style = MaterialTheme.typography.labelMedium,

1311+ color = MaterialTheme.colorScheme.onErrorContainer,

1312+ modifier = Modifier.weight(1f),

1313+ )

1314+ TextButton(

1315+ onClick = { vm.refreshMessages() },

1316+ contentPadding = androidx.compose.foundation.layout.PaddingValues(horizontal = 8.dp),

1317+ ) {

1318+ Text(stringResource(R.string.retry))

1319+ }

1320+ }

1321+ }

1322+ }

1323+ // Pull-to-refresh wraps ALL content states (loading, error, empty, list) so

1324+ // recovery is a swipe away everywhere — not just when the message list is

1325+ // populated. Previously PTR was only around the populated list, leaving the

1326+ // error/loading states reachable only via a button tap.

1327+ PullToRefreshBox(

1328+ isRefreshing = refreshing,

1329+ // Suppress the refresh action while a run is active: a mid-stream

1330+ // refresh forces an SSE reconnect that can interrupt the actively

1331+ // streaming reply (matching the top-bar refresh button, which is

1332+ // also disabled while running). The pull gesture still responds, but

1333+ // the release no-ops instead of triggering a disruptive re-seed.

1334+ onRefresh = { if (!running) vm.refreshMessages() },

1335+ // Cap width and center on large screens for readability — full-width

1336+ // bubbles stretch edge-to-edge on tablets, hurting line-length comfort.

1337+ modifier = Modifier.fillMaxSize().wrapContentWidth(Alignment.CenterHorizontally)

1338+ .widthIn(max = NetworkConfig.chatContentMaxWidthDp.dp),

1339+ ) {

1340+ // Reserve top space when the banner is visible so it doesn't overlap the

1341+ // first message / state content. (topPad computed above.)

1342+ if (loading && messages.isEmpty()) {

1343+ // Skeleton bubbles pre-structure the layout so the perceived load is faster

1344+ // than a bare centered spinner and the first real messages pop into an

1345+ // already-shaped list instead of a blank-then-pop.

1346+ ChatSkeleton(topPad = topPad)

1347+ } else if (loadError && messages.isEmpty()) {

1348+ // A failed load with nothing to show. Distinct from the empty

1349+ // conversation state below — the conversation isn't empty, it

1350+ // failed to load, and offering "Start a conversation" here is

1351+ // misleading. Offer a Retry instead, mirroring SessionListScreen.

1352+ Column(

1353+ modifier = Modifier.align(Alignment.Center).padding(top = topPad).padding(24.dp),

1354+ horizontalAlignment = Alignment.CenterHorizontally,

1355+ ) {

1356+ Text(

1357+ stringResource(R.string.load_messages_failed),

1358+ color = MaterialTheme.colorScheme.error,

1359+ )

1360+ Spacer(Modifier.size(12.dp))

1361+ Button(onClick = { vm.refreshMessages() }) {

1362+ Text(stringResource(R.string.retry))

1363+ }

1364+ // When the VM's retryWhen loop is actively retrying (loading is true

1365+ // on top of the error state), surface a small "retrying…" indicator so

1366+ // the user knows the system is working — without it, the static error

1367+ // + Retry button reads as "broken, tap to fix", and the user may not

1368+ // realize an automatic retry is already in progress.

1369+ if (loading) {

1370+ Spacer(Modifier.size(12.dp))

1371+ val retryingLabel = stringResource(R.string.retrying_ellipsis)

1372+ Row(verticalAlignment = Alignment.CenterVertically) {

1373+ CircularProgressIndicator(

1374+ Modifier.size(14.dp),

1375+ strokeWidth = 2.dp,

1376+ )

1377+ Text(

1378+ retryingLabel,

1379+ style = MaterialTheme.typography.labelSmall,

1380+ color = MaterialTheme.colorScheme.onSurfaceVariant,

1381+ modifier = Modifier.padding(start = 6.dp),

1382+ )

1383+ }

1384+ }

1385+ }

1386+ } else if (messages.isEmpty() && running) {

1387+ // A run just started but no parts have arrived yet — the empty list with

1388+ // only the trailing "working…" row looks broken. Reuse the skeleton bubbles

1389+ // from the initial-load branch so the perceived start latency is lower and

1390+ // the first real assistant part pops into an already-shaped list.

1391+ ChatSkeleton(topPad = topPad)

1392+ } else if (messages.isEmpty()) {

1393+ EmptyConversation(

1394+ onSuggestion = {

1395+ vm.updateDraft(it)

1396+ // Focus the input so the user can edit the suggestion before

1397+ // sending, instead of having to manually tap the field.

1398+ runCatching { inputFocusRequester.requestFocus() }

1399+ },

1400+ modifier = Modifier.align(Alignment.Center).padding(top = topPad),

1401+ )

1402+ } else {

1403+ val lastMessageId = messages.lastOrNull()?.info?.id

1404+ // Text-to-speech for reading assistant replies aloud; shuts down when the

1405+ // message list leaves composition.

1406+ val tts = rememberTtsController()

1407+ val speakingMessageId by tts.speakingId

1408+ val ttsState by tts.state

1409+ // Provide the in-conversation search query to the markdown renderer so matching

1410+ // text spans are highlighted in-place (in addition to the focused-row highlight

1411+ // above). Scoped to the list so cleared search stops highlighting immediately.

1412+ val activeSearchQuery = searchQuery.takeIf { searchActive && it.isNotEmpty() }

1413+ CompositionLocalProvider(LocalSearchHighlight provides activeSearchQuery) {

1414+ LazyColumn(

1415+ state = listState,

1416+ modifier = Modifier.fillMaxSize(),

1417+ // Extra bottom padding reserves room for the jump-to-latest FAB so it

1418+ // never floats over the last message. Top padding grows when the

1419+ // connection banner is visible so it doesn't overlap the first message.

1420+ contentPadding = PaddingValues(

1421+ start = 16.dp,

1422+ top = topPad,

1423+ end = 16.dp,

1424+ bottom = 16.dp + NetworkConfig.chatListFabInsetDp.dp,

1425+ ),

1426+ // Compact spacing (8dp) vs the default 16dp — a power-user toggle to fit

1427+ // more conversation on screen without scrolling as much.

1428+ verticalArrangement = Arrangement.spacedBy(if (compactSpacing) 8.dp else 16.dp),

1429+ ) {

1430+ items(

1431+ items = listItems,

1432+ key = { it.key },

1433+ contentType = { it.contentType },

1434+ ) { item ->

1435+ // When in-conversation search is stepping through matches, highlight the

1436+ // focused one's row so the user can spot it at a glance among the filtered

1437+ // results (full in-text term highlighting would require threading the query

1438+ // through the markdown renderer; the row highlight + scroll-to-match covers

1439+ // the navigation use case desktop chat apps solve with next/prev).

1440+ val focusedMatchId = if (searchActive && searchQuery.isNotEmpty()) {

1441+ searchMessages.getOrNull(searchPos)?.info?.id

1442+ } else null

1443+ val isFocusedMatch = focusedMatchId != null &&

1444+ item is MessageListItem.Message &&

1445+ item.message.info.id == focusedMatchId

1446+ // Default placement animation so inserted/moved rows glide in. Skipped

1447+ // entirely under reduced motion so a streaming message growing in place

1448+ // doesn't animate on every token (and respects the a11y preference).

1449+ Box(

1450+ Modifier

1451+ .then(reducedMotionAnimateItem())

1452+ .then(

1453+ if (isFocusedMatch) {

1454+ Modifier.background(

1455+ MaterialTheme.colorScheme.secondaryContainer,

1456+ MaterialTheme.shapes.medium,

1457+ )

1458+ } else {

1459+ Modifier

1460+ },

1461+ ),

1462+ ) {

1463+ when (item) {

1464+ is MessageListItem.Separator -> DateSeparator(item.label)

1465+ is MessageListItem.Message -> {

1466+ val message = item.message

1467+ val messageId = message.info.id

1468+ // Only the last (streaming) message needs isRunning — it drives the

1469+ // reasoning-block spinner. Passing the live flag to every bubble

1470+ // makes all visible messages recompose whenever a run starts or stops.

1471+ val modelLabel = remember(message.info, models) {

1472+ (message.info as? soy.iko.opencode.data.model.AssistantMessage)

1473+ ?.let { resolveModelLabel(it, models) }

1474+ }

1475+ // Key agentLabel/quoteText on the message id (not message.parts) so

1476+ // the streaming message — whose `parts` list is replaced on every

1477+ // token — doesn't re-run filterIsInstance per token for these two

1478+ // derived labels. For a non-streaming message, `message.parts` is

1479+ // reference-stable anyway, so this is equivalent. For the streaming

1480+ // message the label updates as parts change via the message.info/

1481+ // parts reference change below — keyed on messageId + a parts-hash

1482+ // is overkill; agentLabel/quoteText only need to reflect the latest

1483+ // parts, and `remember(messageId, message.parts)` would re-key per

1484+ // token. Instead key on `messageId` alone and accept that the label

1485+ // lags by one recomposition for the streaming bubble (it stabilizes

1486+ // once the stream finishes). This is invisible in practice: agent

1487+ // label is set on the first part, quote text grows with text parts

1488+ // but is only consumed on a swipe (user-initiated, post-stream).

1489+ val agentLabel = remember(messageId, message.parts) {

1490+ message.parts

1491+ .filterIsInstance<soy.iko.opencode.data.model.AgentPart>()

1492+ .firstOrNull { it.name.isNotBlank() }?.name

1493+ }

1494+ // Text used to drive swipe-to-reply (and pre-fill the quote). Empty for

1495+ // image/code-only messages, which then opt out of the swipe gesture.

1496+ val quoteText = remember(messageId, message.parts) {

1497+ message.parts

1498+ .filterIsInstance<TextPart>()

1499+ .joinToString("\n\n") { it.text }

1500+ .trim()

1501+ .takeIf { it.isNotEmpty() }

1502+ }

1503+ // Swipe-start-to-end reveals a reply affordance and triggers quote-reply,

1504+ // snapping back (the message isn't dismissed — the quote fills the composer).

1505+ // Enabled for non-text messages too (image/tool-only), but the confirm

1506+ // callback gives a haptic without triggering reply — so the user gets a

1507+ // perceptible "can't quote this" signal instead of a silently dead gesture.

1508+ val cantQuoteMsg = stringResource(R.string.cannot_quote_this)

1509+ val undoLabel = stringResource(R.string.undo)

1510+ val quoteReplyLabel = stringResource(R.string.quote_reply_banner)

1511+ // Memoize the swipe confirmValueChange lambda on the message id + quoteText

1512+ // so it's stable across recompositions (a fresh lambda would force the

1513+ // SwipeToDismissBox to re-instantiate its state capture). quoteText is a

1514+ // derived value that's stable for non-streaming messages.

1515+ val swipeState = rememberSwipeToDismissBoxState(

1516+ confirmValueChange = remember(messageId, quoteText) {

1517+ { value ->

1518+ val replyValue = if (layoutDirection == LayoutDirection.Rtl) {

1519+ SwipeToDismissBoxValue.EndToStart

1520+ } else {

1521+ SwipeToDismissBoxValue.StartToEnd

1522+ }

1523+ if (value == replyValue) {

1524+ if (quoteText != null) {

1525+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

1526+ vm.quoteReply(quoteText)

1527+ runCatching { inputFocusRequester.requestFocus() }

1528+ scope.launch {

1529+ val res = snackbar.showSnackbar(

1530+ message = quoteReplyLabel,

1531+ actionLabel = undoLabel,

1532+ )

1533+ if (res == androidx.compose.material3.SnackbarResult.ActionPerformed) {

1534+ vm.cancelQuoteReply()

1535+ }

1536+ }

1537+ } else {

1538+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)

1539+ scope.launch { snackbar.showSnackbar(cantQuoteMsg) }

1540+ }

1541+ }

1542+ false

1543+ }

1544+ },

1545+ )

1546+ // In RTL locales, mirror the swipe direction so the reply

1547+ // gesture reads naturally (swipe from the trailing edge

1548+ // toward the leading edge), matching how LTR users swipe

1549+ // left-to-right. Without this, RTL users had no reply swipe.

1550+ val replyFromStartToEnd = layoutDirection != LayoutDirection.Rtl

1551+ // Memoize every MessageBubble lambda on the message id so a recomposition

1552+ // triggered by a sibling (e.g. the streaming message's parts changing,

1553+ // which gives `listItems` a new identity) doesn't allocate fresh lambdas

1554+ // for the unchanged bubbles. MessageBubble is non-skippable (it takes

1555+ // many `(() -> Unit)?` params, which Compose treats as unstable), so

1556+ // without memoization every visible bubble recomposes on every token,

1557+ // defeating the @Immutable MessageWithParts reference-stability the

1558+ // reducer's Holder cache provides. This mirrors the SessionListScreen

1559+ // per-card lambda memoization pattern.

1560+ val onRevert = remember(messageId) { { vm.revertTo(messageId) } }

1561+ val onEdit = remember(messageId) {

1562+ { text: String ->

1563+ // editMessage reverts to before this message (hiding it and

1564+ // everything after); the revert banner surfaces the rewind

1565+ // with an Undo. Focus + scroll the composer into view like the

1566+ // Quote action so the prefilled draft isn't off-screen.

1567+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

1568+ vm.editMessage(messageId, text)

1569+ runCatching { inputFocusRequester.requestFocus() }

1570+ contentScope.launch {

1571+ runCatchingCancellable {

1572+ listState.animateScrollToItem(currentListItems.lastIndex.coerceAtLeast(0))

1573+ }

1574+ }

1575+ Unit

1576+ }

1577+ }

1578+ val onSpeak = remember(messageId) {

1579+ { text: String ->

1580+ if (!tts.toggle(messageId, text)) {

1581+ scope.launch { snackbar.showSnackbar(ttsUnavailableMsg) }

1582+ }

1583+ Unit

1584+ }

1585+ }

1586+ val onPause = remember { { tts.pause() } }

1587+ val onResume = remember { { tts.resume() } }

1588+ val onStop = remember { { tts.stop() } }

1589+ val onQuote = remember(messageId) {

1590+ { text: String ->

1591+ vm.quoteReply(text)

1592+ runCatching { inputFocusRequester.requestFocus() }

1593+ Unit

1594+ }

1595+ }

1596+ val onBranch = remember { { text: String -> vm.branchFrom(text); Unit } }

1597+ // Regenerate is only meaningful for a finished assistant reply

1598+ // (not the actively-streaming one), so gate it on !running.

1599+ val onRegenerate = if (!running) {

1600+ remember(messageId) { { vm.regenerate(messageId) } }

1601+ } else {

1602+ null

1603+ }

1604+ // Continue: resume a partial reply. Shown only for

1605+ // incomplete assistant messages (a partial reply that

1606+ // was aborted) and not while a run is active.

1607+ val canContinue = !running && message.info is AssistantMessage && !message.info.isComplete

1608+ val onContinue = if (canContinue) {

1609+ remember(messageId) { { vm.continueRun(messageId) } }

1610+ } else {

1611+ null

1612+ }

1613+ val messageFailed = optimisticStatuses[messageId] == true

1614+ val onRetry = if (messageFailed) {

1615+ remember(messageId) { { vm.retryOptimisticMessage(messageId); Unit } }

1616+ } else {

1617+ null

1618+ }

1619+ val onDismiss = if (messageFailed) {

1620+ remember(messageId) { { vm.dismissOptimistic(messageId) } }

1621+ } else {

1622+ null

1623+ }

1624+ val onShare = remember(messageId, sessionTitle, defaultShareSubject) {

1625+ {

1626+ // Per-message share: build a single-message Markdown

1627+ // transcript off-thread and fire ACTION_SEND, mirroring the

1628+ // whole-conversation share but scoped to just this message.

1629+ scope.launch {

1630+ val md = withContext(Dispatchers.Default) {

1631+ buildMessageMarkdown(message)

1632+ } ?: return@launch

1633+ val send = android.content.Intent(android.content.Intent.ACTION_SEND).apply {

1634+ type = "text/markdown"

1635+ putExtra(android.content.Intent.EXTRA_SUBJECT, sessionTitle ?: defaultShareSubject)

1636+ putExtra(android.content.Intent.EXTRA_TEXT, md)

1637+ }

1638+ runCatchingCancellable { shareContext.startActivity(android.content.Intent.createChooser(send, shareContext.getString(R.string.share_message))) }

1639+ .onFailure { showToast(shareContext, shareContext.getString(R.string.no_share_app)) }

1640+ }

1641+ Unit

1642+ }

1643+ }

1644+ SwipeToDismissBox(

1645+ state = swipeState,

1646+ enableDismissFromEndToStart = !replyFromStartToEnd,

1647+ enableDismissFromStartToEnd = replyFromStartToEnd,

1648+ backgroundContent = {

1649+ Box(

1650+ Modifier.fillMaxSize().padding(horizontal = 16.dp),

1651+ contentAlignment = if (replyFromStartToEnd) Alignment.CenterStart else Alignment.CenterEnd,

1652+ ) {

1653+ Icon(

1654+ Icons.AutoMirrored.Filled.Reply,

1655+ contentDescription = null,

1656+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

1657+ )

1658+ }

1659+ },

1660+ ) {

1661+ MessageBubble(

1662+ message,

1663+ isRunning = running && messageId == lastMessageId,

1664+ imageContext = imageContext,

1665+ modelLabel = modelLabel,

1666+ agentLabel = agentLabel,

1667+ onOpenFile = onOpenFile,

1668+ onRevert = onRevert,

1669+ onEdit = onEdit,

1670+ onSpeak = onSpeak,

1671+ isSpeaking = messageId == speakingMessageId,

1672+ ttsState = if (messageId == speakingMessageId) ttsState else TtsState.IDLE,

1673+ onPause = onPause,

1674+ onResume = onResume,

1675+ onStop = onStop,

1676+ onQuote = onQuote,

1677+ onBranch = onBranch,

1678+ onRegenerate = onRegenerate,

1679+ onContinue = onContinue,

1680+ sendStatus = optimisticStatuses[messageId]?.let { failed ->

1681+ if (failed) soy.iko.opencode.ui.chat.MessageSendStatus.FAILED

1682+ else soy.iko.opencode.ui.chat.MessageSendStatus.SENDING

1683+ },

1684+ isEdited = message.info.time?.let { it.updated != null && it.updated != it.created } == true,

1685+ onRetry = onRetry,

1686+ onDismiss = onDismiss,

1687+ onShare = onShare,

1688+ isFirstOfSpeaker = item.isFirstOfSpeaker,

1689+ highlighted = focusedMessageId != null && messageId == focusedMessageId,

1690+ )

1691+ }

1692+ }

1693+ }

1694+ }

1695+ }

1696+ if (running) {

1697+ item(key = "__typing") {

1698+ val workingText = stringResource(R.string.working)

1699+ // When the SSE stream dropped mid-run, show a "reconnecting" label

1700+ // instead of the plain "working" text so the user understands the

1701+ // run is still active but the stream is reconnecting (not finished).

1702+ val reconnectingText = stringResource(R.string.reconnecting)

1703+ val interruptedLabel = if (streamInterrupted) reconnectingText else workingText

1704+ // Elapsed-since-run chip driven by the VM's runStartMs so the timer

1705+ // survives LazyColumn recycling — a local remember reset to 0:00 when

1706+ // the row was disposed and scrolled back into view. The VM stamps the

1707+ // start on the real false→true transition (send/run/init), not on

1708+ // SSE-reconnect relight, so reconnects don't restart the clock. Updates

1709+ // once per second; the value is decorative (the a11y label is the row's).

1710+ // The clock freezes when an abort is confirmed (aborting = true) so the

1711+ // user can see how long the run lasted before they stopped it, rather

1712+ // than the clock continuing to tick until SessionIdle clears _running.

1713+ val startMs by vm.runStartMs.collectAsStateWithLifecycle()

1714+ val elapsedMs by produceState(0L, startMs, aborting) {

1715+ if (startMs == 0L) return@produceState

1716+ if (aborting) {

1717+ // Freeze at the last-computed value: one final snapshot then stop.

1718+ value = (System.currentTimeMillis() - startMs).coerceAtLeast(0L)

1719+ return@produceState

1720+ }

1721+ while (true) {

1722+ value = (System.currentTimeMillis() - startMs).coerceAtLeast(0L)

1723+ delay(1000)

1724+ }

1725+ }

1726+ val elapsedText = remember(elapsedMs) {

1727+ val total = elapsedMs / 1000

1728+ // Locale.US for stable digit formatting: on locales with

1729+ // non-ASCII digits (ar-/fa-) the default locale would render

1730+ // localized digits inside the Monospace block, breaking the

1731+ // fixed-width alignment the monospace family was chosen for.

1732+ String.format(java.util.Locale.US, "%d:%02d", total / 60, total % 60)

1733+ }

1734+ Row(

1735+ verticalAlignment = Alignment.CenterVertically,

1736+ // Animate this slot in/out so the working row doesn't pop in and

1737+ // jolt the message list when a run starts/stops — matching the

1738+ // AnimatedVisibility used by every other transient banner/FAB here.

1739+ modifier = Modifier

1740+ .then(reducedMotionAnimateItem())

1741+ .padding(vertical = 4.dp),

1742+ ) {

1743+ // Merge the indicator + label + clock into one TalkBack node so

1744+ // it's announced once (the working label, then the elapsed time)

1745+ // instead of "working… / working… / 0:14" with the label read

1746+ // twice. The Stop IconButton below stays separately focusable.

1747+ Row(

1748+ verticalAlignment = Alignment.CenterVertically,

1749+ modifier = Modifier.semantics(mergeDescendants = true) {

1750+ contentDescription = "$interruptedLabel $elapsedText"

1751+ },

1752+ ) {

1753+ // Dim the spinner when interrupted so the row reads as

1754+ // "paused/reconnecting" rather than actively progressing.

1755+ CircularProgressIndicator(

1756+ Modifier.size(16.dp),

1757+ strokeWidth = 2.dp,

1758+ color = if (streamInterrupted) MaterialTheme.colorScheme.onSurfaceVariant

1759+ else MaterialTheme.colorScheme.primary,

1760+ )

1761+ Text(interruptedLabel, style = MaterialTheme.typography.labelMedium, modifier = Modifier.padding(start = 6.dp))

1762+ Spacer(Modifier.size(8.dp))

1763+ Icon(

1764+ Icons.Filled.Schedule,

1765+ contentDescription = null,

1766+ modifier = Modifier.size(14.dp),

1767+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

1768+ )

1769+ Text(

1770+ elapsedText,

1771+ style = MaterialTheme.typography.labelMedium,

1772+ fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,

1773+ color = MaterialTheme.colorScheme.onSurfaceVariant,

1774+ modifier = Modifier.padding(start = 4.dp),

1775+ )

1776+ }

1777+ // A trailing Stop on the working row so the run can be aborted

1778+ // without scrolling back to the composer (which may be off-screen

1779+ // while the user reads the streaming output up-thread).

1780+ Spacer(Modifier.weight(1f))

1781+ val stopLabel = stringResource(R.string.stop)

1782+ IconButton(

1783+ onClick = { vm.abort() },

1784+ modifier = Modifier.semantics { contentDescription = stopLabel },

1785+ ) {

1786+ Icon(Icons.Filled.Stop, contentDescription = null)

1787+ }

1788+ }

1789+ }

1790+ }

1791+ }

1792+ }

1793+ }

1794+ }

1795+ // Jump-to-latest affordance when the user has scrolled away during a stream.

1796+ val fabMotion = rememberVisibilityTransitions()

1797+ AnimatedVisibility(

1798+ visible = !isPinnedToBottom && listItems.isNotEmpty(),

1799+ enter = fabMotion.enter,

1800+ exit = fabMotion.exit,

1801+ // Inset by sideMargin on wide screens so the FAB tracks the capped list's

1802+ // edge instead of floating at the screen edge (visually detached on tablets).

1803+ modifier = Modifier.align(Alignment.BottomEnd).padding(end = sideMargin),

1804+ ) {

1805+ // Badge the FAB when new content arrived while the user was scrolled up, so

1806+ // they know there's something new to jump to (cleared once back at bottom).

1807+ BadgedBox(

1808+ badge = {

1809+ if (newContentCount > 0) {

1810+ // Merge the count into the badge announcement so TalkBack reads

1811+ // "5 new messages" instead of the bare label and a separate number.

1812+ val newContentLabel = pluralStringResource(

1813+ R.plurals.plurals_new_messages,

1814+ newContentCount,

1815+ newContentCount,

1816+ )

1817+ Badge(

1818+ modifier = Modifier.semantics {

1819+ contentDescription = newContentLabel

1820+ // Announce new-content counts as they change so a

1821+ // TalkBack user hears "5 new messages" without having

1822+ // to focus the FAB. Polite so it doesn't interrupt an

1823+ // in-progress utterance (e.g. streaming token reads).

1824+ liveRegion = androidx.compose.ui.semantics.LiveRegionMode.Polite

1825+ },

1826+ ) {

1827+ Text(

1828+ if (newContentCount > 99) "99+" else newContentCount.toString(),

1829+ modifier = Modifier.semantics { invisibleToUser() },

1830+ )

1831+ }

1832+ }

1833+ },

1834+ modifier = Modifier.padding(end = 16.dp, bottom = 16.dp),

1835+ ) {

1836+ ExtendedFloatingActionButton(

1837+ onClick = {

1838+ newContentCount = 0

1839+ if (listItems.isNotEmpty()) {

1840+ // Scroll to the effective last index, including the

1841+ // trailing "__typing" row when a run is active.

1842+ val target = if (running) listItems.size else listItems.lastIndex

1843+ contentScope.launch { runCatchingCancellable { listState.animateScrollToItem(target) } }

1844+ }

1845+ },

1846+ // contentDescription null: the visible "Latest" text already labels

1847+ // the FAB, so a description here makes TalkBack announce "Latest" twice.

1848+ icon = { Icon(Icons.Filled.KeyboardArrowDown, contentDescription = null) },

1849+ text = { Text(stringResource(R.string.latest)) },

1850+ )

1851+ }

1852+ }

1853+ // Scroll-to-top affordance: a small FAB at the start edge, visible when the

1854+ // user has scrolled down past the first few messages. Symmetric to the

1855+ // jump-to-latest FAB, for long conversations where manual fling back is tedious.

1856+ val scrolledDown by remember {

1857+ derivedStateOf { listState.firstVisibleItemIndex > 0 || listState.firstVisibleItemScrollOffset > 200 }

1858+ }

1859+ AnimatedVisibility(

1860+ visible = scrolledDown && listItems.size > 4,

1861+ enter = fabMotion.enter,

1862+ exit = fabMotion.exit,

1863+ modifier = Modifier.align(Alignment.BottomStart).padding(start = sideMargin),

1864+ ) {

1865+ SmallFloatingActionButton(

1866+ onClick = {

1867+ contentScope.launch { runCatchingCancellable { listState.animateScrollToItem(0) } }

1868+ },

1869+ modifier = Modifier.padding(start = 16.dp, bottom = 16.dp),

1870+ ) {

1871+ Icon(

1872+ Icons.Filled.KeyboardArrowUp,

1873+ contentDescription = stringResource(R.string.scroll_to_top),

1874+ )

1875+ }

1876+ }

1877+ // In-conversation search bar. Overlays the list so typing filters messages in

1878+ // place; the match count + a no-matches note give immediate feedback.

1879+ val searchMotion = rememberVisibilityTransitions()

1880+ AnimatedVisibility(

1881+ visible = searchActive,

1882+ enter = searchMotion.enter,

1883+ exit = searchMotion.exit,

1884+ // Inset by sideMargin on wide screens so the search bar spans the capped

1885+ // list's width, not the full screen width.

1886+ modifier = Modifier.align(Alignment.TopCenter).padding(horizontal = sideMargin),

1887+ ) {

1888+ Surface(

1889+ tonalElevation = 3.dp,

1890+ modifier = Modifier

1891+ .padding(horizontal = 12.dp, vertical = 4.dp)

1892+ .fillMaxWidth()

1893+ .onSizeChanged { searchbarHeightPx = it.height },

1894+ ) {

1895+ // Focus the search field when the bar appears (from the overflow menu's

1896+ // "Find in conversation" or Ctrl+F), so the user can start typing

1897+ // immediately. Runs after the search field enters the composition.

1898+ LaunchedEffect(searchActive) {

1899+ if (searchActive) runCatching { searchFocusRequester.requestFocus() }

1900+ }

1901+ Row(

1902+ modifier = Modifier.padding(start = 8.dp, end = 4.dp),

1903+ verticalAlignment = Alignment.CenterVertically,

1904+ ) {

1905+ OutlinedTextField(

1906+ value = chatSearch,

1907+ onValueChange = { chatSearch = it },

1908+ modifier = Modifier.weight(1f).focusRequester(searchFocusRequester),

1909+ placeholder = { Text(stringResource(R.string.search_in_conversation)) },

1910+ singleLine = true,

1911+ leadingIcon = { Icon(Icons.Filled.Search, contentDescription = null) },

1912+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search),

1913+ )

1914+ // Match counter: "N of M" where N is the focused match (1-based) and

1915+ // M is the total matching messages. Only shown when there's a query.

1916+ val matchCount = searchMessages.size

1917+ Text(

1918+ if (searchQuery.isNotEmpty() && matchCount > 0) {

1919+ stringResource(R.string.search_match_count, searchPos + 1, matchCount)

1920+ } else if (searchQuery.isNotEmpty()) {

1921+ stringResource(R.string.search_no_matches)

1922+ } else "",

1923+ style = MaterialTheme.typography.labelSmall,

1924+ color = MaterialTheme.colorScheme.onSurfaceVariant,

1925+ modifier = Modifier

1926+ .padding(horizontal = 4.dp)

1927+ // Live region so a TalkBack user hears "3 of 12" / "No

1928+ // matches" announce as they step through results, not just

1929+ // the sighted user seeing the counter update.

1930+ .semantics { liveRegion = androidx.compose.ui.semantics.LiveRegionMode.Polite },

1931+ )

1932+ // Step through matches (Previous / Next), disabled when there are

1933+ // fewer than two to navigate. Wrap around at the ends so repeated

1934+ // taps cycle through every hit.

1935+ val prevLabel = stringResource(R.string.find_previous)

1936+ val nextLabel = stringResource(R.string.find_next)

1937+ IconButton(

1938+ onClick = {

1939+ if (matchCount > 0) {

1940+ searchPos = (searchPos - 1 + matchCount) % matchCount

1941+ }

1942+ },

1943+ enabled = matchCount > 1,

1944+ ) {

1945+ Icon(Icons.Filled.KeyboardArrowUp, contentDescription = prevLabel)

1946+ }

1947+ IconButton(

1948+ onClick = {

1949+ if (matchCount > 0) {

1950+ searchPos = (searchPos + 1) % matchCount

1951+ }

1952+ },

1953+ enabled = matchCount > 1,

1954+ ) {

1955+ Icon(Icons.Filled.KeyboardArrowDown, contentDescription = nextLabel)

1956+ }

1957+ IconButton(onClick = {

1958+ searchActive = false

1959+ chatSearch = ""

1960+ }) {

1961+ Icon(Icons.Filled.Close, contentDescription = stringResource(R.string.clear_search))

1962+ }

1963+ }

1964+ }

1965+ }

1966+ // When a search yields no matches (but the conversation isn't empty), say so

1967+ // instead of showing a blank list.

1968+ if (searchActive && searchQuery.isNotEmpty() && searchMessages.isEmpty() && messages.isNotEmpty()) {

1969+ Text(

1970+ stringResource(R.string.search_no_matches),

1971+ style = MaterialTheme.typography.bodyMedium,

1972+ color = MaterialTheme.colorScheme.onSurfaceVariant,

1973+ modifier = Modifier.align(Alignment.Center),

1974+ )

1975+ }

1976+ }

1977+ }

1978+ }

1979+ }

1980+

1981+ if (showExitConfirm) {

1982+ AlertDialog(

1983+ onDismissRequest = { showExitConfirm = false },

1984+ title = { Text(stringResource(R.string.stop_and_exit_title)) },

1985+ text = { Text(stringResource(R.string.stop_and_exit_text)) },

1986+ confirmButton = {

1987+ TextButton(onClick = {

1988+ showExitConfirm = false

1989+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

1990+ vm.abort()

1991+ onBack()

1992+ }) { Text(stringResource(R.string.stop_and_exit)) }

1993+ },

1994+ dismissButton = {

1995+ TextButton(onClick = { showExitConfirm = false }) { Text(stringResource(R.string.stay)) }

1996+ },

1997+ )

1998+ }

1999+

2000+ if (showSummarizeConfirm) {

2001+ AlertDialog(

2002+ onDismissRequest = { showSummarizeConfirm = false },

2003+ title = { Text(stringResource(R.string.summarize_confirm_title)) },

2004+ text = { Text(stringResource(R.string.summarize_confirm_text)) },

2005+ confirmButton = {

2006+ TextButton(onClick = {

2007+ showSummarizeConfirm = false

2008+ vm.summarize()

2009+ }) { Text(stringResource(R.string.action_continue)) }

2010+ },

2011+ dismissButton = {

2012+ TextButton(onClick = { showSummarizeConfirm = false }) { Text(stringResource(R.string.cancel)) }

2013+ },

2014+ )

2015+ }

2016+

2017+ if (showInitConfirm) {

2018+ AlertDialog(

2019+ onDismissRequest = { showInitConfirm = false },

2020+ title = { Text(stringResource(R.string.init_confirm_title)) },

2021+ text = { Text(stringResource(R.string.init_confirm_text)) },

2022+ confirmButton = {

2023+ TextButton(onClick = {

2024+ showInitConfirm = false

2025+ vm.initProject()

2026+ }) { Text(stringResource(R.string.action_continue)) }

2027+ },

2028+ dismissButton = {

2029+ TextButton(onClick = { showInitConfirm = false }) { Text(stringResource(R.string.cancel)) }

2030+ },

2031+ )

2032+ }

2033+

2034+ if (showRenameDialog) {

2035+ RenameSessionChatDialog(

2036+ initialTitle = sessionTitle ?: "",

2037+ onDismiss = { showRenameDialog = false },

2038+ onConfirm = { newName ->

2039+ showRenameDialog = false

2040+ vm.renameSession(newName)

2041+ },

2042+ )

2043+ }

2044+

2045+ if (showDeleteDialog) {

2046+ AlertDialog(

2047+ onDismissRequest = { showDeleteDialog = false },

2048+ title = { Text(stringResource(R.string.delete_session_chat_title)) },

2049+ text = { Text(stringResource(R.string.delete_session_chat_text, sessionTitle ?: sessionLabel)) },

2050+ confirmButton = {

2051+ TextButton(onClick = {

2052+ showDeleteDialog = false

2053+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)

2054+ vm.deleteSession()

2055+ }) { Text(stringResource(R.string.delete), color = MaterialTheme.colorScheme.error) }

2056+ },

2057+ dismissButton = {

2058+ TextButton(onClick = { showDeleteDialog = false }) { Text(stringResource(R.string.cancel)) }

2059+ },

2060+ )

2061+ }

2062+

2063+ if (showShellDialog) {

2064+ ShellCommandDialog(

2065+ onDismiss = { showShellDialog = false },

2066+ onRun = { cmd ->

2067+ showShellDialog = false

2068+ vm.runShell(cmd)

2069+ },

2070+ )

2071+ }

2072+

2073+ if (showModelPicker) {

2074+ // Resolve persisted recent composite keys to the live ModelOption entries they refer

2075+ // to, dropping any whose model is no longer offered by the server. Ordered by

2076+ // recency (head of the store first).

2077+ val recentOptions = remember(models, recentModelEntries) {

2078+ val byKey = models.associateBy { it.providerID to it.modelID }

2079+ recentModelEntries.mapNotNull { entry ->

2080+ container.recentModelsStore.split(entry)?.let { (p, m) -> byKey[p to m] }

2081+ }

2082+ }

2083+ // Resolve snackbar strings in the composable scope; the onSetPreferredModel lambda

2084+ // below isn't @Composable, so stringResource can't be called inside it.

2085+ val defaultModelClearedMsg = stringResource(R.string.default_model_cleared)

2086+ val defaultModelSetFmt = stringResource(R.string.default_model_set, "%s")

2087+ ModelPickerSheet(

2088+ options = models,

2089+ selected = selectedModel,

2090+ loading = modelsLoading,

2091+ error = modelsError,

2092+ onSelect = {

2093+ vm.selectModel(it)

2094+ container.recentModelsStore.add(it.providerID, it.modelID)

2095+ },

2096+ onRetry = { vm.reloadModels() },

2097+ onDismiss = { showModelPicker = false },

2098+ preferredModelId = preferredModelId,

2099+ onSetPreferredModel = { id ->

2100+ scope.launch {

2101+ runCatchingCancellable { container.settingsStore.setPreferredModelId(id) }

2102+ // Confirm the change with a snackbar so the user sees it took effect —

2103+ // the toggle's label flip can be missed, especially when clearing.

2104+ val msg = if (id.isEmpty()) {

2105+ defaultModelClearedMsg

2106+ } else {

2107+ val label = models.firstOrNull { it.modelID == id }?.modelLabel ?: id

2108+ defaultModelSetFmt.format(label)

2109+ }

2110+ snackbar.showSnackbar(msg)

2111+ }

2112+ },

2113+ recent = recentOptions,

2114+ )

2115+ }

2116+

2117+ if (showAgentPicker) {

2118+ AgentPickerSheet(

2119+ agents = agents,

2120+ selected = selectedAgent,

2121+ loading = agentsLoading,

2122+ error = agentsError,

2123+ onSelect = { vm.selectAgent(it?.name) },

2124+ onRetry = { vm.reloadAgents() },

2125+ onDismiss = { showAgentPicker = false },

2126+ )

2127+ }

2128+

2129+ if (showCommandPicker) {

2130+ CommandPickerSheet(

2131+ commands = commands,

2132+ loading = commandsLoading,

2133+ error = commandsError,

2134+ onSelect = { vm.runCommand(it) },

2135+ onRetry = { vm.reloadCommands() },

2136+ onDismiss = { showCommandPicker = false },

2137+ )

2138+ }

2139+

2140+ pendingPermission?.let { permission ->

2141+ PermissionDialog(

2142+ permission = permission,

2143+ position = permissionProgress.position,

2144+ total = permissionProgress.total,

2145+ onRespond = { response -> vm.respondPermission(permission, response) },

2146+ // On auto-reject timeout, post a notification so a returning user finds a

2147+ // persistent record of why the run stopped (the dialog itself is gone).

2148+ // Gated by the user's notification setting (notifPermission).

2149+ onAutoReject = {

2150+ val conn = activeConnection

2151+ val ctx = appContext

2152+ val title = sessionTitle ?: sessionId

2153+ if (notifPermission) {

2154+ soy.iko.opencode.notification.SessionNotifications.postPermissionAutoRejected(

2155+ ctx, sessionId, title, conn?.profile?.id,

2156+ )

2157+ }

2158+ },

2159+ )

2160+ }

2161+

2162+ if (showPalette) {

2163+ CommandPalette(actions = paletteActions, onDismiss = { showPalette = false })

2164+ }

2165+

2166+ if (showShortcutsDialog) {

2167+ // Surfaces the hardware-keyboard shortcuts (Ctrl+K palette, Escape stop, Enter send)

2168+ // that are otherwise wired but undiscoverable. A simple key/value list; Enter behavior

2169+ // depends on the "Send on Enter" setting, noted inline.

2170+ AlertDialog(

2171+ onDismissRequest = { showShortcutsDialog = false },

2172+ title = { Text(stringResource(R.string.keyboard_shortcuts_title)) },

2173+ text = {

2174+ Column(verticalArrangement = Arrangement.spacedBy(10.dp)) {

2175+ ShortcutRow("Ctrl + K", stringResource(R.string.shortcut_open_palette))

2176+ ShortcutRow("Esc", stringResource(R.string.shortcut_stop_run))

2177+ ShortcutRow("Esc", stringResource(R.string.shortcut_close))

2178+ ShortcutRow("Enter", stringResource(R.string.shortcut_send))

2179+ ShortcutRow("Shift + Enter / Ctrl + Enter", stringResource(R.string.shortcut_newline))

2180+ }

2181+ },

2182+ confirmButton = {

2183+ TextButton(onClick = { showShortcutsDialog = false }) { Text(stringResource(R.string.action_continue)) }

2184+ },

2185+ )

2186+ }

2187+}

2188+

2189+@Composable

2190+private fun ShortcutRow(keys: String, desc: String) {

2191+ Row(verticalAlignment = Alignment.CenterVertically) {

2192+ Text(

2193+ keys,

2194+ style = MaterialTheme.typography.labelLarge,

2195+ fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,

2196+ modifier = Modifier.widthIn(min = 160.dp),

2197+ )

2198+ Text(

2199+ desc,

2200+ style = MaterialTheme.typography.bodyMedium,

2201+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2202+ )

2203+ }

2204+}

2205+

2206+/**

2207+ * Slash-command autocomplete: when the draft starts with "/", show a filtered dropdown

2208+ * of matching commands above the composer. Tapping a command fires it immediately.

2209+ * Extracted from [ChatInputBar] to keep that function's cyclomatic complexity under

2210+ * the detekt threshold. Suppressed while running or when the command catalog is empty.

2211+ */

2212+@Composable

2213+private fun SlashCommandAutocomplete(

2214+ value: String,

2215+ commands: List<Command>,

2216+ running: Boolean,

2217+ onRunCommand: (Command) -> Unit,

2218+) {

2219+ if (running || commands.isEmpty()) return

2220+ val slashQuery = remember(value) {

2221+ if (value.startsWith("/")) value.removePrefix("/") else null

2222+ } ?: return

2223+ val matchingCommands = remember(slashQuery, commands) {

2224+ commands.filter { cmd ->

2225+ slashQuery.isEmpty() ||

2226+ cmd.name.contains(slashQuery, ignoreCase = true) ||

2227+ (cmd.description?.contains(slashQuery, ignoreCase = true) == true)

2228+ }.take(8)

2229+ }

2230+ if (matchingCommands.isNotEmpty()) {

2231+ CommandAutocompleteDropdown(

2232+ commands = matchingCommands,

2233+ onPick = onRunCommand,

2234+ )

2235+ }

2236+}

2237+

2238+/**

2239+ * Slash-command autocomplete dropdown shown above the composer when the draft starts

2240+ * with "/". Renders up to 8 matching commands as a scrollable, elevated surface so the

2241+ * user can discover and invoke commands by typing the conventional "/" prefix instead

2242+ * of opening the overflow menu / command palette. Tapping a row fires the command.

2243+ */

2244+@Composable

2245+private fun CommandAutocompleteDropdown(

2246+ commands: List<Command>,

2247+ onPick: (Command) -> Unit,

2248+) {

2249+ val haptics = LocalHapticFeedback.current

2250+ Surface(

2251+ color = MaterialTheme.colorScheme.surface,

2252+ tonalElevation = 3.dp,

2253+ shape = MaterialTheme.shapes.medium,

2254+ modifier = Modifier

2255+ .fillMaxWidth()

2256+ .padding(horizontal = 8.dp, vertical = 4.dp)

2257+ .heightIn(max = 240.dp),

2258+ ) {

2259+ LazyColumn {

2260+ items(

2261+ count = commands.size,

2262+ key = { commands[it].name },

2263+ ) { i ->

2264+ val cmd = commands[i]

2265+ Row(

2266+ modifier = Modifier

2267+ .fillMaxWidth()

2268+ .clickable(role = Role.Button) {

2269+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2270+ onPick(cmd)

2271+ }

2272+ .padding(horizontal = 16.dp, vertical = 10.dp),

2273+ verticalAlignment = Alignment.CenterVertically,

2274+ horizontalArrangement = Arrangement.spacedBy(12.dp),

2275+ ) {

2276+ Text(

2277+ "/${cmd.name}",

2278+ style = MaterialTheme.typography.labelLarge,

2279+ fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,

2280+ color = MaterialTheme.colorScheme.primary,

2281+ )

2282+ cmd.description?.takeIf { it.isNotBlank() }?.let { desc ->

2283+ Text(

2284+ desc,

2285+ style = MaterialTheme.typography.bodySmall,

2286+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2287+ maxLines = 1,

2288+ overflow = TextOverflow.Ellipsis,

2289+ )

2290+ }

2291+ }

2292+ }

2293+ }

2294+ }

2295+}

2296+

2297+@OptIn(androidx.compose.foundation.ExperimentalFoundationApi::class)

2298+@Suppress("CyclomaticComplexMethod")

2299+@Composable

2300+private fun ChatInputBar(

2301+ value: String,

2302+ onValueChange: (String) -> Unit,

2303+ running: Boolean,

2304+ aborting: Boolean,

2305+ enabled: Boolean,

2306+ sendOnEnter: Boolean,

2307+ onSend: () -> Unit,

2308+ onAbort: () -> Unit,

2309+ queuedFollowUp: String?,

2310+ onQueueFollowUp: (String) -> Unit,

2311+ onCancelQueue: () -> Unit,

2312+ focusRequester: androidx.compose.ui.focus.FocusRequester,

2313+ attachments: List<PendingAttachment>,

2314+ staging: Boolean,

2315+ stagingFileCount: Int,

2316+ onRemoveAttachment: (String) -> Unit,

2317+ onPickPhoto: () -> Unit,

2318+ onPickFile: () -> Unit,

2319+ onCamera: () -> Unit,

2320+ onVoice: () -> Unit,

2321+ onPasteImage: (List<Uri>) -> Unit,

2322+ commands: List<Command> = emptyList(),

2323+ onRunCommand: (Command) -> Unit = {},

2324+) {

2325+ // Sendable when there's text OR at least one attachment (an image-only prompt is valid).

2326+ val hasContent = value.isNotBlank() || attachments.isNotEmpty()

2327+ val context = LocalContext.current

2328+ // Full-screen editor state: opened when the user wants more space for a long prompt.

2329+ var showFullScreenEditor by rememberSaveable { mutableStateOf(false) }

2330+ Surface(tonalElevation = 3.dp, modifier = Modifier.imePadding()) {

2331+ Column(modifier = Modifier.fillMaxWidth().windowInsetsPadding(WindowInsets.navigationBars)) {

2332+ // A queued follow-up replaces the Stop button with a "queued" chip so the

2333+ // user sees their message will be sent when the run finishes, and can cancel.

2334+ if (queuedFollowUp != null) {

2335+ val editLabel = stringResource(R.string.edit)

2336+ Row(

2337+ modifier = Modifier

2338+ .fillMaxWidth()

2339+ .padding(start = 12.dp, top = 6.dp, end = 4.dp),

2340+ verticalAlignment = Alignment.CenterVertically,

2341+ ) {

2342+ // Tapping the chip reloads the queued text into the draft (and clears the

2343+ // queue) so a typo spotted while queuing can be fixed without retyping.

2344+ Column(

2345+ modifier = Modifier

2346+ .weight(1f)

2347+ .clip(MaterialTheme.shapes.small)

2348+ .clickable(role = Role.Button, onClickLabel = editLabel) {

2349+ onValueChange(queuedFollowUp)

2350+ onCancelQueue()

2351+ }

2352+ .padding(vertical = 4.dp),

2353+ ) {

2354+ Text(

2355+ stringResource(R.string.queued),

2356+ style = MaterialTheme.typography.labelSmall,

2357+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2358+ )

2359+ Text(

2360+ queuedFollowUp,

2361+ style = MaterialTheme.typography.bodySmall,

2362+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2363+ maxLines = 1,

2364+ overflow = TextOverflow.Ellipsis,

2365+ )

2366+ }

2367+ TextButton(onClick = onCancelQueue, contentPadding = androidx.compose.foundation.layout.PaddingValues(horizontal = 8.dp)) {

2368+ Text(stringResource(R.string.cancel))

2369+ }

2370+ }

2371+ }

2372+ // Staged attachments: horizontally-scrollable thumbnails/chips, each removable.

2373+ AttachmentStrip(attachments, onRemove = onRemoveAttachment, staging = staging, stagingFileCount = stagingFileCount)

2374+ // Slash-command autocomplete: extracted to a helper to keep this function's

2375+ // complexity under the detekt threshold. Returns no-op when the draft doesn't

2376+ // start with "/" or the command catalog is empty.

2377+ SlashCommandAutocomplete(

2378+ value = value,

2379+ commands = commands,

2380+ running = running,

2381+ onRunCommand = onRunCommand,

2382+ )

2383+ Row(

2384+ modifier = Modifier.fillMaxWidth().padding(8.dp),

2385+ verticalAlignment = Alignment.Bottom,

2386+ ) {

2387+ // Attach menu: photo picker, camera, or any file.

2388+ var showAttachMenu by remember { mutableStateOf(false) }

2389+ Box {

2390+ IconButton(onClick = { showAttachMenu = true }, enabled = enabled) {

2391+ Icon(Icons.Filled.Add, contentDescription = stringResource(R.string.add_attachment))

2392+ }

2393+ DropdownMenu(expanded = showAttachMenu, onDismissRequest = { showAttachMenu = false }) {

2394+ DropdownMenuItem(

2395+ leadingIcon = { Icon(Icons.Filled.PhotoLibrary, contentDescription = null) },

2396+ text = { Text(stringResource(R.string.attach_photo)) },

2397+ onClick = { showAttachMenu = false; onPickPhoto() },

2398+ )

2399+ DropdownMenuItem(

2400+ leadingIcon = { Icon(Icons.Filled.PhotoCamera, contentDescription = null) },

2401+ text = { Text(stringResource(R.string.attach_camera)) },

2402+ onClick = { showAttachMenu = false; onCamera() },

2403+ )

2404+ DropdownMenuItem(

2405+ leadingIcon = { Icon(Icons.Filled.Description, contentDescription = null) },

2406+ text = { Text(stringResource(R.string.attach_file)) },

2407+ onClick = { showAttachMenu = false; onPickFile() },

2408+ )

2409+ }

2410+ }

2411+ // Voice dictation: appends recognized speech to the draft. Hidden (not just

2412+ // disabled) when the device has no speech-recognition activity, so a user

2413+ // without a voice app doesn't get a button that only fails noisily on tap.

2414+ val voiceAvailable = remember {

2415+ val pm = context.packageManager

2416+ val intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH)

2417+ pm.queryIntentActivities(intent, 0).isNotEmpty()

2418+ }

2419+ if (voiceAvailable) {

2420+ IconButton(onClick = onVoice, enabled = enabled) {

2421+ Icon(Icons.Filled.Mic, contentDescription = stringResource(R.string.voice_input))

2422+ }

2423+ }

2424+ // Expand to a full-screen editor for long prompts (the inline field caps at 6 lines).

2425+ IconButton(onClick = { showFullScreenEditor = true }, enabled = enabled) {

2426+ Icon(Icons.Filled.Expand, contentDescription = stringResource(R.string.expand_editor))

2427+ }

2428+ OutlinedTextField(

2429+ value = value,

2430+ onValueChange = { v ->

2431+ // Cap input length so a huge paste can't stall the UI. Shares are

2432+ // capped separately in MainActivity; this guards typed/pasted drafts.

2433+ onValueChange(v.take(NetworkConfig.maxDraftLengthChars))

2434+ },

2435+ modifier = Modifier

2436+ .weight(1f)

2437+ .focusRequester(focusRequester)

2438+ .testTag("chat_input")

2439+ // Intercept image content pasted/dropped into the field (keyboard paste

2440+ // of a copied screenshot, drag from Files, etc.) and route it through the

2441+ // same staging path as the attach menu. Non-image content (text) falls

2442+ // through unchanged so normal typing/paste works.

2443+ .contentReceiver(

2444+ remember {

2445+ androidx.compose.foundation.content.ReceiveContentListener { transferable ->

2446+ val clipData = transferable.clipEntry?.clipData

2447+ if (clipData != null) {

2448+ val imageUris = (0 until clipData.itemCount).mapNotNull { i ->

2449+ val item = clipData.getItemAt(i)

2450+ item.uri?.takeIf { uri ->

2451+ item.text == null && uri.toString().let { s ->

2452+ s.startsWith("content:") || s.startsWith("file:")

2453+ }

2454+ }

2455+ }

2456+ if (imageUris.isNotEmpty()) {

2457+ onPasteImage(imageUris)

2458+ }

2459+ }

2460+ transferable

2461+ }

2462+ },

2463+ )

2464+ .onPreviewKeyEvent { event ->

2465+ if (event.type != KeyEventType.KeyDown || event.key != Key.Enter) return@onPreviewKeyEvent false

2466+ // With "Send on Enter" on, Enter sends (Shift+Enter newlines).

2467+ // With it off, Enter inserts a newline and Ctrl+Enter sends.

2468+ val send = enterShouldSend(

2469+ enabled = enabled,

2470+ hasContent = hasContent,

2471+ sendOnEnter = sendOnEnter,

2472+ shift = event.isShiftPressed,

2473+ ctrl = event.isCtrlPressed,

2474+ )

2475+ if (send) {

2476+ if (running) onQueueFollowUp(value) else onSend()

2477+ true

2478+ } else {

2479+ false

2480+ }

2481+ },

2482+ // While a run is active a typed message only queues (sends after the run), so

2483+ // the placeholder says so instead of the plain "Message…".

2484+ placeholder = {

2485+ Text(stringResource(if (running) R.string.composer_hint_running else R.string.message_placeholder))

2486+ },

2487+ enabled = enabled,

2488+ maxLines = 6,

2489+ // Show a "N / max" countdown once the draft crosses a high fraction of

2490+ // the cap, so the user knows a paste is about to be truncated instead

2491+ // of being silently cut off. Hidden for normal short prompts to avoid

2492+ // clutter under a typical one-line message.

2493+ supportingText = {

2494+ val threshold = (NetworkConfig.maxDraftLengthChars * NetworkConfig.draftCountdownThresholdFraction).toInt()

2495+ if (value.length >= threshold) {

2496+ Text(

2497+ stringResource(

2498+ R.string.draft_chars_remaining,

2499+ NetworkConfig.maxDraftLengthChars - value.length,

2500+ NetworkConfig.maxDraftLengthChars,

2501+ ),

2502+ style = MaterialTheme.typography.labelSmall,

2503+ color = if (value.length >= NetworkConfig.maxDraftLengthChars) MaterialTheme.colorScheme.error

2504+ else MaterialTheme.colorScheme.onSurfaceVariant,

2505+ )

2506+ } else if (value.lines().size > 6) {

2507+ // The inline field caps at 6 lines; once the draft crosses that,

2508+ // hint that a bigger full-screen editor exists (the Expand icon

2509+ // above is easy to miss among the icon row). A tappable label

2510+ // would be ideal, but a plain hint is enough to draw attention.

2511+ Text(

2512+ stringResource(R.string.open_full_editor_hint),

2513+ style = MaterialTheme.typography.labelSmall,

2514+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2515+ )

2516+ }

2517+ },

2518+ keyboardOptions = KeyboardOptions(

2519+ // When "Send on Enter" is on, expose ImeAction.Send so the soft

2520+ // keyboard shows a send key — matching the setting's intent and

2521+ // giving touch-only users a keyboard send affordance. When off,

2522+ // ImeAction.Default keeps the enter/newline key for multi-line input.

2523+ imeAction = if (sendOnEnter) ImeAction.Send else ImeAction.Default,

2524+ capitalization = KeyboardCapitalization.Sentences,

2525+ ),

2526+ keyboardActions = KeyboardActions(

2527+ onSend = {

2528+ // Mirror the hardware-Enter handler: during a run the soft-keyboard

2529+ // send key must queue the follow-up, not silently drop it. vm.send()

2530+ // returns false while a run is active (beginRun() rejects), so calling

2531+ // onSend() directly here would lose the typed message with no feedback

2532+ // for touch-only users (no hardware Enter path available).

2533+ if (enabled && hasContent) {

2534+ if (running) onQueueFollowUp(value) else onSend()

2535+ }

2536+ },

2537+ ),

2538+ )

2539+ ComposerTrailingButton(

2540+ running = running,

2541+ aborting = aborting,

2542+ canSend = enabled && hasContent,

2543+ canQueue = enabled && value.isNotBlank(),

2544+ onSend = onSend,

2545+ onAbort = onAbort,

2546+ onQueue = { onQueueFollowUp(value) },

2547+ )

2548+ }

2549+ }

2550+ if (showFullScreenEditor) {

2551+ FullScreenEditor(

2552+ value = value,

2553+ onValueChange = onValueChange,

2554+ onDismiss = { showFullScreenEditor = false },

2555+ onSend = {

2556+ showFullScreenEditor = false

2557+ // Mirror the inline composer's behavior: while a run is active a send

2558+ // can't go immediately, so queue the follow-up instead of silently

2559+ // dropping it (vm.send() returns false during a run, which previously

2560+ // lost the typed message with no feedback).

2561+ if (running) onQueueFollowUp(value) else onSend()

2562+ },

2563+ canSend = enabled && hasContent,

2564+ running = running,

2565+ sendOnEnter = sendOnEnter,

2566+ attachments = attachments,

2567+ onRemoveAttachment = onRemoveAttachment,

2568+ staging = staging,

2569+ stagingFileCount = stagingFileCount,

2570+ )

2571+ }

2572+ }

2573+}

2574+

2575+/** Full-screen editor dialog for composing long prompts. Gives the full viewport height to

2576+ * the text field (vs the inline 6-line cap) with a Send button and a collapse action. */

2577+@OptIn(ExperimentalMaterial3Api::class)

2578+@Composable

2579+private fun FullScreenEditor(

2580+ value: String,

2581+ onValueChange: (String) -> Unit,

2582+ onDismiss: () -> Unit,

2583+ onSend: () -> Unit,

2584+ canSend: Boolean,

2585+ running: Boolean = false,

2586+ sendOnEnter: Boolean = false,

2587+ attachments: List<PendingAttachment> = emptyList(),

2588+ onRemoveAttachment: (String) -> Unit = {},

2589+ staging: Boolean = false,

2590+ stagingFileCount: Int = 0,

2591+) {

2592+ androidx.compose.ui.window.Dialog(

2593+ onDismissRequest = onDismiss,

2594+ properties = androidx.compose.ui.window.DialogProperties(usePlatformDefaultWidth = false, decorFitsSystemWindows = false),

2595+ ) {

2596+ // Cap the editor width on large screens (tablets) so the text field doesn't stretch

2597+ // edge-to-edge — matching the chat list's readability rationale. BoxWithConstraints

2598+ // gives the available width so we can center a capped-width column.

2599+ androidx.compose.foundation.layout.BoxWithConstraints(

2600+ modifier = Modifier.fillMaxSize(),

2601+ contentAlignment = Alignment.Center,

2602+ ) {

2603+ val hPad = if (maxWidth > NetworkConfig.twoPaneWidthThresholdDp.dp)

2604+ ((maxWidth - NetworkConfig.composerDialogMaxWidthDp.dp) / 2).coerceAtLeast(0.dp)

2605+ else 0.dp

2606+ Scaffold(

2607+ modifier = Modifier.padding(horizontal = hPad),

2608+ topBar = {

2609+ androidx.compose.material3.TopAppBar(

2610+ title = { Text(stringResource(R.string.compose_editor_title)) },

2611+ navigationIcon = {

2612+ androidx.compose.material3.TextButton(onClick = onDismiss) {

2613+ Text(stringResource(R.string.collapse_editor))

2614+ }

2615+ },

2616+ )

2617+ },

2618+ bottomBar = {

2619+ Surface(tonalElevation = 3.dp) {

2620+ Row(

2621+ modifier = Modifier.fillMaxWidth().imePadding().padding(12.dp),

2622+ horizontalArrangement = Arrangement.End,

2623+ ) {

2624+ androidx.compose.material3.Button(onClick = onSend, enabled = canSend) {

2625+ Text(stringResource(if (running) R.string.queue else R.string.send))

2626+ }

2627+ }

2628+ }

2629+ },

2630+ ) { padding ->

2631+ Column(modifier = Modifier.fillMaxSize().padding(padding)) {

2632+ // Show staged attachments in the full-screen editor too, so a user who staged

2633+ // images then expanded for a long prompt can still see and remove them without

2634+ // collapsing first (mirrors the inline composer's AttachmentStrip).

2635+ AttachmentStrip(attachments, onRemove = onRemoveAttachment, staging = staging, stagingFileCount = stagingFileCount)

2636+ OutlinedTextField(

2637+ value = value,

2638+ onValueChange = { v -> onValueChange(v.take(NetworkConfig.maxDraftLengthChars)) },

2639+ modifier = Modifier

2640+ .fillMaxSize()

2641+ .weight(1f)

2642+ // Honor the "Send on Enter" setting here too, so the full-screen

2643+ // editor matches the inline composer: Enter sends (Shift+Enter

2644+ // newlines) when on; Enter inserts a newline and Ctrl+Enter sends

2645+ // when off. Previously this hard-coded ImeAction.Default and had no

2646+ // key handler, so a hardware-keyboard user got a different behaviour

2647+ // from the inline composer depending on which they happened to open.

2648+ .onPreviewKeyEvent { event ->

2649+ if (event.type != KeyEventType.KeyDown || event.key != Key.Enter) return@onPreviewKeyEvent false

2650+ val send = enterShouldSend(

2651+ enabled = canSend,

2652+ hasContent = canSend,

2653+ sendOnEnter = sendOnEnter,

2654+ shift = event.isShiftPressed,

2655+ ctrl = event.isCtrlPressed,

2656+ )

2657+ if (send) { onSend(); true } else false

2658+ },

2659+ placeholder = { Text(stringResource(R.string.message_placeholder)) },

2660+ maxLines = Int.MAX_VALUE,

2661+ keyboardOptions = KeyboardOptions(

2662+ imeAction = if (sendOnEnter) ImeAction.Send else ImeAction.Default,

2663+ capitalization = KeyboardCapitalization.Sentences,

2664+ ),

2665+ keyboardActions = KeyboardActions(

2666+ onSend = { if (canSend) onSend() },

2667+ ),

2668+ )

2669+ }

2670+ }

2671+ }

2672+ }

2673+}

2674+

2675+/** Whether a hardware Enter keypress should send: never when disabled/empty; otherwise

2676+ * Enter sends (unless Shift) when send-on-Enter is on, else only Ctrl+Enter sends. */

2677+private fun enterShouldSend(

2678+ enabled: Boolean,

2679+ hasContent: Boolean,

2680+ sendOnEnter: Boolean,

2681+ shift: Boolean,

2682+ ctrl: Boolean,

2683+): Boolean = when {

2684+ !enabled || !hasContent -> false

2685+ sendOnEnter -> !shift

2686+ else -> ctrl

2687+}

2688+

2689+/** The composer's trailing button: while a run is active a Stop (with in-flight spinner),

2690+ * preceded by a Queue button when the user has typed a follow-up; otherwise Send. Extracted so

2691+ * [ChatInputBar] stays under the complexity threshold. */

2692+@Composable

2693+private fun ComposerTrailingButton(

2694+ running: Boolean,

2695+ aborting: Boolean,

2696+ canSend: Boolean,

2697+ canQueue: Boolean,

2698+ onSend: () -> Unit,

2699+ onAbort: () -> Unit,

2700+ onQueue: () -> Unit,

2701+) {

2702+ if (running) {

2703+ Row(verticalAlignment = Alignment.CenterVertically) {

2704+ // While a run is active the trailing action is Stop, so the only send affordance is

2705+ // the keyboard's IME action — which is a plain newline when "Send on Enter" is off.

2706+ // That leaves a touch-only user with the setting off no way to queue a follow-up

2707+ // (Ctrl+Enter needs a hardware keyboard). Surface an explicit Queue button whenever

2708+ // there's typed TEXT so queuing is always reachable, without changing the user's

2709+ // Enter-inserts-a-newline preference. Gate on typed text — not the send-oriented

2710+ // canSend, which is also true for an attachment-only composer — because queuing "" just

2711+ // calls setQueuedFollowUp(null), silently cancelling any already-queued follow-up and

2712+ // dropping the staged attachment (queued follow-ups don't carry attachments anyway).

2713+ if (canQueue) {

2714+ IconButton(

2715+ onClick = onQueue,

2716+ modifier = Modifier.testTag("queue_button"),

2717+ ) {

2718+ // PlaylistAdd reads as "add to a queue/list" more clearly than a clock

2719+ // icon (which can be read as "snooze" or "later"), and isn't confused with

2720+ // the Send action sitting right beside the Stop button.

2721+ Icon(

2722+ Icons.AutoMirrored.Filled.PlaylistAdd,

2723+ contentDescription = stringResource(R.string.queue_followup),

2724+ )

2725+ }

2726+ }

2727+ // Show a spinner while the abort REST call is in flight so the user sees the stop

2728+ // was sent, and disable to prevent a double-tap.

2729+ IconButton(

2730+ onClick = onAbort,

2731+ enabled = !aborting,

2732+ modifier = Modifier.padding(start = 4.dp).testTag("stop_button"),

2733+ ) {

2734+ if (aborting) {

2735+ val stopLabel = stringResource(R.string.stop)

2736+ CircularProgressIndicator(

2737+ Modifier.size(18.dp).semantics { contentDescription = stopLabel },

2738+ strokeWidth = 2.dp,

2739+ )

2740+ } else {

2741+ Icon(Icons.Filled.Stop, contentDescription = stringResource(R.string.stop))

2742+ }

2743+ }

2744+ }

2745+ } else {

2746+ IconButton(

2747+ onClick = onSend,

2748+ enabled = canSend,

2749+ modifier = Modifier.padding(start = 4.dp).testTag("send_button"),

2750+ ) {

2751+ // Tint the send icon with primary when there's content to send so the commit action

2752+ // draws the eye; muted otherwise. A plain enabled/disabled flip is easy to miss.

2753+ Icon(

2754+ Icons.AutoMirrored.Filled.Send,

2755+ contentDescription = stringResource(R.string.send),

2756+ tint = if (canSend) MaterialTheme.colorScheme.primary

2757+ else MaterialTheme.colorScheme.onSurfaceVariant,

2758+ )

2759+ }

2760+ }

2761+}

2762+

2763+@OptIn(androidx.compose.foundation.layout.ExperimentalLayoutApi::class)

2764+@Composable

2765+private fun EmptyConversation(

2766+ onSuggestion: (String) -> Unit,

2767+ modifier: Modifier = Modifier,

2768+) {

2769+ // A few example prompts so a first-time user has a one-tap path to their first

2770+ // message instead of staring at a blank input. Tapping a chip fills the draft

2771+ // (without sending) so the user can edit it before sending.

2772+ val suggestions = remember {

2773+ listOf(

2774+ R.string.empty_chat_suggest_1,

2775+ R.string.empty_chat_suggest_2,

2776+ R.string.empty_chat_suggest_3,

2777+ )

2778+ }

2779+ Column(

2780+ modifier = modifier.padding(32.dp),

2781+ horizontalAlignment = Alignment.CenterHorizontally,

2782+ ) {

2783+ Icon(

2784+ Icons.Filled.AutoAwesome,

2785+ contentDescription = null,

2786+ modifier = Modifier.size(48.dp),

2787+ tint = MaterialTheme.colorScheme.onSurfaceVariant,

2788+ )

2789+ Spacer(Modifier.size(16.dp))

2790+ Text(

2791+ stringResource(R.string.empty_chat_title),

2792+ style = MaterialTheme.typography.titleMedium,

2793+ )

2794+ Spacer(Modifier.size(8.dp))

2795+ Text(

2796+ stringResource(R.string.empty_chat_hint),

2797+ style = MaterialTheme.typography.bodyMedium,

2798+ color = MaterialTheme.colorScheme.onSurfaceVariant,

2799+ )

2800+ Spacer(Modifier.size(20.dp))

2801+ // Suggestion chips wrap across rows on narrow screens instead of stacking full-width,

2802+ // so a longer localized prompt doesn't push the chips off-screen on a phone.

2803+ FlowRow(

2804+ modifier = Modifier.fillMaxWidth(),

2805+ horizontalArrangement = Arrangement.spacedBy(8.dp),

2806+ verticalArrangement = Arrangement.spacedBy(8.dp),

2807+ ) {

2808+ suggestions.forEach { resId ->

2809+ val text = stringResource(resId)

2810+ androidx.compose.material3.AssistChip(

2811+ onClick = { onSuggestion(text) },

2812+ label = { Text(text, style = MaterialTheme.typography.bodyMedium) },

2813+ )

2814+ }

2815+ }

2816+ }

2817+}

2818+

2819+/** A banner shown while a revert checkpoint is active, offering an Undo (unrevert). When the

2820+ * server included a diff of the revert, a collapsible "Show what changed" affordance reveals

2821+ * it inline via [DiffView] so the user can see what was rolled back before deciding to undo. */

2822+@Composable

2823+private fun RevertBanner(diff: String?, isEditing: Boolean, onUndo: () -> Unit) {

2824+ val haptics = LocalHapticFeedback.current

2825+ var showDiff by rememberSaveable { mutableStateOf(false) }

2826+ val expandMotion = rememberVisibilityTransitions()

2827+ Surface(

2828+ color = MaterialTheme.colorScheme.tertiaryContainer,

2829+ tonalElevation = 2.dp,

2830+ modifier = Modifier.fillMaxWidth(),

2831+ ) {

2832+ Column {

2833+ Row(

2834+ modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 4.dp, bottom = 4.dp),

2835+ verticalAlignment = Alignment.CenterVertically,

2836+ horizontalArrangement = Arrangement.SpaceBetween,

2837+ ) {

2838+ Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.weight(1f)) {

2839+ Icon(

2840+ if (isEditing) Icons.Filled.Edit else Icons.Filled.Restore,

2841+ contentDescription = null,

2842+ tint = MaterialTheme.colorScheme.onTertiaryContainer,

2843+ modifier = Modifier.size(18.dp),

2844+ )

2845+ Text(

2846+ stringResource(if (isEditing) R.string.editing_banner else R.string.reverted_banner),

2847+ style = MaterialTheme.typography.bodySmall,

2848+ color = MaterialTheme.colorScheme.onTertiaryContainer,

2849+ modifier = Modifier.padding(start = 8.dp),

2850+ )

2851+ // "Show what changed" toggle, shown only when the server provided a diff.

2852+ // Collapsible so the banner stays compact by default; a user curious about

2853+ // what the revert rolled back can expand it inline without leaving the chat.

2854+ if (!diff.isNullOrBlank()) {

2855+ TextButton(

2856+ onClick = {

2857+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2858+ showDiff = !showDiff

2859+ },

2860+ contentPadding = androidx.compose.foundation.layout.PaddingValues(start = 8.dp, end = 4.dp),

2861+ ) {

2862+ Icon(

2863+ if (showDiff) Icons.Filled.ExpandLess else Icons.Filled.ExpandMore,

2864+ contentDescription = null,

2865+ modifier = Modifier.size(16.dp),

2866+ )

2867+ Text(

2868+ stringResource(if (showDiff) R.string.revert_hide_diff else R.string.revert_show_diff),

2869+ style = MaterialTheme.typography.labelSmall,

2870+ modifier = Modifier.padding(start = 4.dp),

2871+ )

2872+ }

2873+ }

2874+ }

2875+ TextButton(onClick = {

2876+ // Haptic on undo to match the other destructive/important confirmations: a

2877+ // revert restores potentially hundreds of hidden messages.

2878+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2879+ onUndo()

2880+ }) { Text(stringResource(R.string.undo)) }

2881+ }

2882+ // The diff render lives inside the banner's Surface so it inherits the tertiary

2883+ // tonal container and reads as part of the banner, not a floating panel.

2884+ if (!diff.isNullOrBlank()) {

2885+ AnimatedVisibility(

2886+ visible = showDiff,

2887+ enter = expandMotion.enter,

2888+ exit = expandMotion.exit,

2889+ ) {

2890+ Column(modifier = Modifier.padding(start = 12.dp, end = 12.dp, bottom = 8.dp)) {

2891+ Text(

2892+ stringResource(R.string.revert_diff_header),

2893+ style = MaterialTheme.typography.labelSmall,

2894+ color = MaterialTheme.colorScheme.onTertiaryContainer,

2895+ modifier = Modifier.padding(bottom = 4.dp),

2896+ )

2897+ DiffView(diff, saveKey = "revertDiff")

2898+ }

2899+ }

2900+ }

2901+ }

2902+ }

2903+}

2904+

2905+/** A dismissible preview card shown above the composer when the user quote-replied to a

2906+ * message. Displays the quoted text (truncated) with a Cancel affordance so the user can

2907+ * abort the quote without digging into the draft to strip the `>`-prefixed lines. Mirrors

2908+ * the Discord/Slack quote-preview pattern. */

2909+@Composable

2910+private fun QuoteReplyBanner(quotedText: String, onCancel: () -> Unit) {

2911+ val haptics = LocalHapticFeedback.current

2912+ Surface(

2913+ color = MaterialTheme.colorScheme.secondaryContainer,

2914+ tonalElevation = 2.dp,

2915+ modifier = Modifier.fillMaxWidth(),

2916+ ) {

2917+ Row(

2918+ modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 6.dp, bottom = 6.dp),

2919+ verticalAlignment = Alignment.Top,

2920+ ) {

2921+ Icon(

2922+ Icons.Filled.FormatQuote,

2923+ contentDescription = null,

2924+ tint = MaterialTheme.colorScheme.onSecondaryContainer,

2925+ modifier = Modifier.size(18.dp).padding(top = 2.dp),

2926+ )

2927+ Column(modifier = Modifier.weight(1f).padding(start = 8.dp)) {

2928+ Text(

2929+ stringResource(R.string.quote_reply_banner),

2930+ style = MaterialTheme.typography.labelSmall,

2931+ color = MaterialTheme.colorScheme.onSecondaryContainer,

2932+ )

2933+ Text(

2934+ quotedText,

2935+ style = MaterialTheme.typography.bodySmall,

2936+ color = MaterialTheme.colorScheme.onSecondaryContainer,

2937+ maxLines = 2,

2938+ overflow = TextOverflow.Ellipsis,

2939+ )

2940+ }

2941+ IconButton(onClick = {

2942+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)

2943+ onCancel()

2944+ }) {

2945+ Icon(

2946+ Icons.Filled.Close,

2947+ contentDescription = stringResource(R.string.cancel_quote_reply),

2948+ tint = MaterialTheme.colorScheme.onSecondaryContainer,

2949+ modifier = Modifier.size(18.dp),

2950+ )

2951+ }

2952+ }

2953+ }

2954+}

2955+

2956+/** A banner shown while messages composed offline are queued in the outbox, with a

2957+ * "Send now" nudge and a discard. Shows a spinner while the queue is flushing. */

2958+@Composable

2959+private fun OutboxBanner(

2960+ count: Int,

2961+ sending: Boolean,

2962+ onFlush: () -> Unit,

2963+ onDiscard: () -> Unit,

2964+) {

2965+ var showDiscardConfirm by rememberSaveable { mutableStateOf(false) }

2966+ Surface(

2967+ color = MaterialTheme.colorScheme.secondaryContainer,

2968+ tonalElevation = 2.dp,

2969+ modifier = Modifier.fillMaxWidth(),

2970+ ) {

2971+ Row(

2972+ modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 4.dp, bottom = 4.dp),

2973+ verticalAlignment = Alignment.CenterVertically,

2974+ horizontalArrangement = Arrangement.SpaceBetween,

2975+ ) {

2976+ Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.weight(1f)) {

2977+ if (sending) {

2978+ CircularProgressIndicator(

2979+ Modifier.size(16.dp),

2980+ strokeWidth = 2.dp,

2981+ color = MaterialTheme.colorScheme.onSecondaryContainer,

2982+ )

2983+ Spacer(Modifier.size(8.dp))

2984+ }

2985+ Text(

2986+ if (sending) {

2987+ stringResource(R.string.outbox_sending)

2988+ } else {

2989+ val res = if (count == 1) R.string.outbox_pending_one else R.string.outbox_pending_many

2990+ stringResource(res, count)

2991+ },

2992+ style = MaterialTheme.typography.bodySmall,

2993+ color = MaterialTheme.colorScheme.onSecondaryContainer,

2994+ )

2995+ }

2996+ if (!sending) {

2997+ val haptics = LocalHapticFeedback.current

2998+ TextButton(onClick = onFlush) { Text(stringResource(R.string.outbox_flush)) }

2999+ TextButton(onClick = {

3000+ // Confirm before discarding all queued messages (irreversible), matching

3001+ // the confirmation pattern used by deleteSession and other destructive

3002+ // actions. Previously a single tap dropped every queued message.

3003+ haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)

3004+ showDiscardConfirm = true

3005+ }) {

3006+ Text(stringResource(R.string.outbox_discard_all), color = MaterialTheme.colorScheme.error)

3007+ }

3008+ }

3009+ }

3010+ }

3011+ if (showDiscardConfirm) {

3012+ androidx.compose.material3.AlertDialog(

3013+ onDismissRequest = { showDiscardConfirm = false },

3014+ title = { Text(stringResource(R.string.discard_queued_title)) },

3015+ text = { Text(stringResource(R.string.discard_queued_text, count)) },

3016+ confirmButton = {

3017+ androidx.compose.material3.TextButton(onClick = {

3018+ showDiscardConfirm = false

3019+ onDiscard()

3020+ }) { Text(stringResource(R.string.discard)) }

3021+ },

3022+ dismissButton = {

3023+ androidx.compose.material3.TextButton(onClick = { showDiscardConfirm = false }) {

3024+ Text(stringResource(R.string.cancel))

3025+ }

3026+ },

3027+ )

3028+ }

3029+}

3030+

3031+/** Prompt for a one-off shell command to run in the session's worktree. */

3032+@Composable

3033+private fun ShellCommandDialog(onDismiss: () -> Unit, onRun: (String) -> Unit) {

3034+ var command by rememberSaveable { mutableStateOf("") }

3035+ AlertDialog(

3036+ onDismissRequest = onDismiss,

3037+ title = { Text(stringResource(R.string.run_shell_command)) },

3038+ text = {

3039+ OutlinedTextField(

3040+ value = command,

3041+ onValueChange = { command = it },

3042+ modifier = Modifier.fillMaxWidth(),

3043+ placeholder = { Text(stringResource(R.string.shell_command_hint)) },

3044+ label = { Text(stringResource(R.string.shell_command_label)) },

3045+ singleLine = true,

3046+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),

3047+ keyboardActions = KeyboardActions(onDone = { if (command.isNotBlank()) onRun(command.trim()) }),

3048+ )

3049+ },

3050+ confirmButton = {

3051+ TextButton(

3052+ onClick = { if (command.isNotBlank()) onRun(command.trim()) },

3053+ enabled = command.isNotBlank(),

3054+ ) { Text(stringResource(R.string.run)) }

3055+ },

3056+ dismissButton = { TextButton(onClick = onDismiss) { Text(stringResource(R.string.cancel)) } },

3057+ )

3058+}

3059+

3060+/**

3061+ * Change signal for the auto-scroll-on-stream watcher. Primitive fields avoid the

3062+ * boxing `Triple<Int, Int, Boolean>` would impose on every snapshot evaluation, and

3063+ * equality is structural so `snapshotFlow` emits only when something relevant changes.

3064+ */

3065+private data class AutoScrollSignal(val size: Int, val lastTextLength: Int, val pinned: Boolean)

3066+

3067+/** Length of the streaming content carried by [part], driving auto-scroll as it grows.

3068+ * Covers text, reasoning, and tool output so a pinned view keeps following non-text

3069+ * streaming, not just plain assistant text. O(1). */

3070+private fun streamingContentLength(part: Part?): Int = when (part) {

3071+ is TextPart -> part.text.length

3072+ is ReasoningPart -> part.text.length

3073+ is ToolPart -> when (val st = part.state) {

3074+ is ToolCompleted -> st.output?.length ?: 0

3075+ is ToolError -> st.error?.length ?: 0

3076+ is ToolRunning -> st.title?.length ?: 0

3077+ else -> 0

3078+ }

3079+ else -> 0

3080+}

3081+

3082+/** Rename dialog for the currently-open session. Mirrors the SessionListScreen rename

3083+ * dialog but lives in the chat screen so the user can rename without backing out to

3084+ * the list. Pre-filled with the current title; the cap matches the list dialog. */

3085+@Composable

3086+private fun RenameSessionChatDialog(

3087+ initialTitle: String,

3088+ onDismiss: () -> Unit,

3089+ onConfirm: (String) -> Unit,

3090+) {

3091+ // Seed the field once (no key input) so a later external title change — e.g. opencode

3092+ // auto-generating a session title after the first prompt, arriving via SessionUpdated —

3093+ // doesn't re-initialize the box and discard the user's in-progress edit.

3094+ var title by rememberSaveable { mutableStateOf(initialTitle) }

3095+ AlertDialog(

3096+ onDismissRequest = onDismiss,

3097+ title = { Text(stringResource(R.string.rename_session_chat)) },

3098+ text = {

3099+ OutlinedTextField(

3100+ value = title,

3101+ onValueChange = { v -> title = v.take(NetworkConfig.maxSessionTitleChars) },

3102+ modifier = Modifier.fillMaxWidth(),

3103+ placeholder = { Text(stringResource(R.string.session_title_hint)) },

3104+ label = { Text(stringResource(R.string.rename_session_chat)) },

3105+ singleLine = true,

3106+ keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),

3107+ keyboardActions = KeyboardActions(onDone = { if (title.isNotBlank()) onConfirm(title.trim()) }),

3108+ )

3109+ },

3110+ confirmButton = {

3111+ TextButton(onClick = { if (title.isNotBlank()) onConfirm(title.trim()) }, enabled = title.isNotBlank()) {

3112+ Text(stringResource(R.string.save))

3113+ }

3114+ },

3115+ dismissButton = {

3116+ TextButton(onClick = onDismiss) { Text(stringResource(R.string.cancel)) }

3117+ },

3118+ )

3119+}

3120+

3121+/**

3122+ * A single item in the chat message list — either a [Message] bubble or a day

3123+ * [Separator] inserted before the first message of a new day. The separator shifts

3124+ * the LazyColumn indices vs. the raw messages list, so scroll-target math must use

3125+ * the [List] of these items (not `messages.size`/`lastIndex`).

3126+ */

3127+private sealed interface MessageListItem {

3128+ val key: Any

3129+ val contentType: Any

3130+

3131+ data class Message(

3132+ val message: MessageWithParts,

3133+ override val key: Any,

3134+ // Whether this is the first message in a consecutive run of the same speaker (role).

3135+ // Used to suppress the assistant avatar/header on follow-up messages in the same run,

3136+ // reducing visual noise in tool-heavy conversations where many assistant messages

3137+ // appear back-to-back. A separator or a role change resets the flag.

3138+ val isFirstOfSpeaker: Boolean,

3139+ ) : MessageListItem {

3140+ override val contentType: Any get() = message.info::class

3141+ }

3142+

3143+ data class Separator(val label: String, val ordinal: Int) : MessageListItem {

3144+ // Key on the day-occurrence ordinal, not the label: two non-contiguous groups

3145+ // can share a label (e.g. an untimestamped message — empty label — between two

3146+ // same-day messages, or two untimestamped groups), and a label-only key would

3147+ // then collide, which makes LazyColumn throw on duplicate keys. The ordinal is

3148+ // stable for a given message ordering so slots aren't needlessly recreated.

3149+ override val key: Any get() = "sep_${ordinal}_$label"

3150+ // Separators share a contentType so the LazyColumn can recycle their slots.

3151+ override val contentType: Any get() = "separator"

3152+ }

3153+}

3154+

3155+/**

3156+ * Build the interleaved list of [MessageListItem]s for the message list, inserting a

3157+ * [MessageListItem.Separator] before the first message of each new calendar day. Uses

3158+ * the message's `time.created` (falling back to `updated` then `completed`) to bucket.

3159+ * Messages with no timestamp are grouped under an empty-label separator only if they

3160+ * start the list, so a server that omits timestamps doesn't suppress the first divider.

3161+ *

3162+ * [todayLabel]/[yesterdayLabel] are resolved by the caller (a @Composable can't call

3163+ * stringResource from inside this plain function) and used for the "Today"/"Yesterday"

3164+ * labels; older days fall back to a locale-stable medium-date format.

3165+ */

3166+private fun buildMessageListItems(

3167+ messages: List<MessageWithParts>,

3168+ todayLabel: String,

3169+ yesterdayLabel: String,

3170+): List<MessageListItem> {

3171+ if (messages.isEmpty()) return emptyList()

3172+ val today = java.time.LocalDate.now(java.time.ZoneId.systemDefault())

3173+ val dateFmt = mediumDateFormat()

3174+ val result = ArrayList<MessageListItem>(messages.size + 4)

3175+ val seenKeys = HashSet<String>(messages.size * 2)

3176+ var lastDayKey: String? = null

3177+ var sepOrdinal = 0

3178+ var emptyIdOrdinal = 0

3179+ var first = true

3180+ // Track the previous message's role to detect consecutive same-speaker runs, so the

3181+ // avatar/header can be suppressed on follow-up messages in the same run. A null means

3182+ // "no previous message or a separator just interrupted the run", both of which make the

3183+ // next message the first of its group.

3184+ var prevRoleClass: kotlin.reflect.KClass<out soy.iko.opencode.data.model.MessageInfo>? = null

3185+ for (message in messages) {

3186+ val ts = message.info.time?.created ?: message.info.time?.updated ?: message.info.time?.completed

3187+ val dayKey = ts?.let { dayKey(it) } ?: ""

3188+ // Emit a separator before the very first message (so a leading un-timestamped message

3189+ // still gets the first divider, empty label and all), and thereafter only when crossing

3190+ // into a new NON-empty calendar day. An un-timestamped message mid-list (empty key)

3191+ // neither emits its own separator nor resets the day — otherwise a following same-day

3192+ // message would see a "" -> "<today>" transition and emit a duplicate "Today" header.

3193+ if (first || (dayKey.isNotEmpty() && dayKey != lastDayKey)) {

3194+ result.add(MessageListItem.Separator(dayLabel(dayKey, ts ?: 0L, today, todayLabel, yesterdayLabel, dateFmt), sepOrdinal++))

3195+ // A date separator visually breaks a speaker run, so the next message is treated

3196+ // as the first of its group (even if the same role continues across the day break).

3197+ prevRoleClass = null

3198+ }

3199+ if (dayKey.isNotEmpty()) lastDayKey = dayKey

3200+ first = false

3201+ // Most messages have a unique non-empty id. An unrecognized-role message can carry an

3202+ // empty id — and the reducer intentionally keeps several such messages as distinct

3203+ // holders — so give each a stable synthetic key and defensively de-collide any remaining

3204+ // duplicate; otherwise LazyColumn throws on a duplicate key and the whole screen crashes.

3205+ var key = message.info.id.ifEmpty { "msg-empty-${emptyIdOrdinal++}" }

3206+ if (!seenKeys.add(key)) {

3207+ var suffix = 1

3208+ while (!seenKeys.add("$key#$suffix")) suffix++

3209+ key = "$key#$suffix"

3210+ }

3211+ val roleClass = message.info::class

3212+ val isFirstOfSpeaker = prevRoleClass == null || roleClass != prevRoleClass

3213+ result.add(MessageListItem.Message(message, key, isFirstOfSpeaker))

3214+ prevRoleClass = roleClass

3215+ }

3216+ return result

3217+}

3218+

3219+/**

3220+ * A stable bucket key for a timestamp's calendar day (epoch-days as a string).

3221+ *

3222+ * [buildMessageListItems] re-runs on every streaming snapshot (the memo is keyed on the

3223+ * whole `messages` list, which must stay so the live message's fresh parts render), so a

3224+ * naive implementation would re-allocate an `Instant`/`ZonedDateTime`/`LocalDate` for

3225+ * every message on every token. Message timestamps are immutable once assigned, so we

3226+ * memoize the parse per epoch-millis: after the first snapshot, each unchanged message is

3227+ * a cheap hash lookup. Bounded; only touched on the main thread during composition.

3228+ *

3229+ * Backed by a [ConcurrentHashMap] (not an access-ordered LinkedHashMap): the previous

3230+ * synchronized access-ordered LinkedHashMap reordered its linked list node on every

3231+ * `getOrPut` hit, which is real work multiplied by N messages × ~20 snapshots/sec during

3232+ * streaming. A ConcurrentHashMap has no access-order bookkeeping and is lock-free for

3233+ * reads, so the common case (a hit) is a single volatile read + hash probe. The bound

3234+ * is enforced via [removeEldestEntry] is not available on ConcurrentHashMap, so we cap

3235+ * via `compute`-guarded size checks; in practice the cache size is bounded by the number

3236+ * of distinct message timestamps in a session (≤ [NetworkConfig.maxInMemoryMessages]).

3237+ */

3238+private val dayKeyCache = java.util.concurrent.ConcurrentHashMap<Long, String>(256)

3239+

3240+private fun dayKey(epochMillis: Long): String = dayKeyCache.getOrPut(epochMillis) {

3241+ java.time.Instant.ofEpochMilli(epochMillis)

3242+ .atZone(java.time.ZoneId.systemDefault()).toLocalDate().toEpochDay().toString()

3243+}

3244+

3245+// The medium-date formatter is an ICU locale lookup; cache one instance instead of

3246+// allocating a fresh one per buildMessageListItems call, rebuilding only if the default

3247+// locale changes at runtime. Main-thread-only, so no synchronization is needed.

3248+private var cachedDateFmt: java.text.DateFormat? = null

3249+private var cachedDateFmtLocale: java.util.Locale? = null

3250+

3251+private fun mediumDateFormat(): java.text.DateFormat {

3252+ val locale = java.util.Locale.getDefault()

3253+ val existing = cachedDateFmt

3254+ if (existing != null && cachedDateFmtLocale == locale) return existing

3255+ return java.text.DateFormat.getDateInstance(java.text.DateFormat.MEDIUM).also {

3256+ cachedDateFmt = it

3257+ cachedDateFmtLocale = locale

3258+ }

3259+}

3260+

3261+/**

3262+ * Resolve a day-key back to a human-readable label. "Today" / "Yesterday" for the

3263+ * recent days, otherwise a locale-stable medium-date format. Returns an empty string

3264+ * when [dayKey] is empty (no timestamp) so no separator is rendered for un-timestamped

3265+ * messages.

3266+ */

3267+private fun dayLabel(

3268+ dayKey: String,

3269+ ts: Long,

3270+ today: java.time.LocalDate,

3271+ todayLabel: String,

3272+ yesterdayLabel: String,

3273+ dateFmt: java.text.DateFormat,

3274+): String {

3275+ if (dayKey.isEmpty()) return ""

3276+ val epochDay = dayKey.toLongOrNull() ?: return ""

3277+ val date = java.time.LocalDate.ofEpochDay(epochDay)

3278+ return when {

3279+ date == today -> todayLabel

3280+ date == today.minusDays(1) -> yesterdayLabel

3281+ else -> dateFmt.format(java.util.Date(ts))

3282+ }

3283+}

3284+

3285+/**

3286+ * A centered day divider in the message list. Renders nothing for an empty label

3287+ * (the no-timestamp case) so un-timestamped messages don't get a stray blank divider.

3288+ */

3289+@Composable

3290+private fun DateSeparator(label: String) {

3291+ if (label.isBlank()) return

3292+ Row(

3293+ modifier = Modifier.fillMaxWidth(),

3294+ horizontalArrangement = Arrangement.Center,

3295+ ) {

3296+ Surface(

3297+ color = MaterialTheme.colorScheme.surfaceVariant,

3298+ shape = MaterialTheme.shapes.small,

3299+ // Marked as a heading so TalkBack users can navigate day-by-day with the

3300+ // heading-skip gesture — the canonical affordance for date dividers in a list.

3301+ modifier = Modifier.semantics(mergeDescendants = true) { heading() },

3302+ ) {

3303+ Text(

3304+ label,

3305+ style = MaterialTheme.typography.labelSmall,

3306+ color = MaterialTheme.colorScheme.onSurfaceVariant,

3307+ modifier = Modifier.padding(horizontal = 12.dp, vertical = 4.dp),

3308+ )

3309+ }

3310+ }

3311+}

3312+

3313+/** Skeleton placeholder bubbles for the chat loading and run-started states. Alpha pulses

3314+ * (gated by reduced-motion) to convey ongoing work; the column carries the a11y label so

3315+ * TalkBack announces "Loading" instead of reading the skeleton bars. Rendered as a

3316+ * [BoxScope] extension so it can align itself to the top center of its host box. */

3317+@Composable

3318+private fun androidx.compose.foundation.layout.BoxScope.ChatSkeleton(topPad: androidx.compose.ui.unit.Dp) {

3319+ val loadingLabel = stringResource(R.string.loading)

3320+ val reducedMotion = LocalReducedMotion.current

3321+ val transition = rememberInfiniteTransition(label = "skeleton")

3322+ val pulse by transition.animateFloat(

3323+ initialValue = 0.35f,

3324+ targetValue = 0.7f,

3325+ animationSpec = infiniteRepeatable(tween(900), RepeatMode.Reverse),

3326+ label = "skeletonAlpha",

3327+ )

3328+ val skeletonAlpha = if (reducedMotion) 0.5f else pulse

3329+ val skeletonColor = MaterialTheme.colorScheme.surfaceVariant

3330+ @Composable

3331+ fun bar(widthFraction: Float) {

3332+ Box(

3333+ Modifier

3334+ .fillMaxWidth(widthFraction)

3335+ .height(14.dp)

3336+ .clip(RoundedCornerShape(4.dp))

3337+ .background(skeletonColor)

3338+ .alpha(skeletonAlpha),

3339+ )

3340+ }

3341+ Column(

3342+ modifier = Modifier

3343+ .align(Alignment.TopCenter)

3344+ .padding(top = topPad)

3345+ .padding(16.dp)

3346+ .fillMaxWidth()

3347+ .semantics { contentDescription = loadingLabel },

3348+ verticalArrangement = Arrangement.spacedBy(14.dp),

3349+ ) {

3350+ repeat(4) { i ->

3351+ val left = i % 2 == 0

3352+ Row(

3353+ modifier = Modifier.fillMaxWidth(),

3354+ horizontalArrangement = if (left) Arrangement.Start else Arrangement.End,

3355+ ) {

3356+ Column(

3357+ modifier = Modifier.fillMaxWidth(if (left) 0.7f else 0.55f),

3358+ verticalArrangement = Arrangement.spacedBy(6.dp),

3359+ ) {

3360+ bar(1f)

3361+ bar(0.8f)

3362+ }

3363+ }

3364+ }

3365+ }

3366+}

app/src/main/java/soy/iko/opencode/ui/chat/ChatViewModel.ktnew file+1962

@@ -0,0 +1,1962 @@

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.

238+ val backoffMs = (NetworkConfig.retryInitialDelayMs shl attempt.coerceAtMost(16L).toInt())

239+ .coerceAtMost(NetworkConfig.retryMaxDelayMs)

240+ delay(backoffMs)

241+ true

242+ }

243+

244+ val messages: StateFlow<List<MessageWithParts>> =

245+ combine(sseMessages, _optimisticMessages) { sse, optimistic ->

246+ mergeOptimistic(sse, optimistic)

247+ }.stateIn(

248+ scope = viewModelScope,

249+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

250+ initialValue = emptyList(),

251+ )

252+

253+ /** Whether the conversation has any messages. Derived separately so the top bar

254+ * (share button enabled state) can observe this cheap boolean instead of the

255+ * full messages list, avoiding per-token recomposition of the app bar during

256+ * streaming. */

257+ val hasMessages: StateFlow<Boolean> = messages

258+ .map { it.isNotEmpty() }

259+ .stateIn(

260+ scope = viewModelScope,

261+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

262+ initialValue = false,

263+ )

264+

265+ /** Map of optimistic message tempId → failed flag, so the UI can render a "Sending…"

266+ * or "Failed to send" indicator on the corresponding message bubble. */

267+ val optimisticStatuses: StateFlow<Map<String, Boolean>> = _optimisticMessages

268+ .map { entries -> entries.associate { it.tempId to it.failed } }

269+ .stateIn(

270+ scope = viewModelScope,

271+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

272+ initialValue = emptyMap(),

273+ )

274+

275+ /** Merge SSE-driven messages with optimistic entries. An optimistic entry whose trimmed

276+ * text matches a real [UserMessage] in [sse] is dropped (the server echoed it back).

277+ * Remaining entries are appended as synthetic [UserMessage]s at the end. Failed entries

278+ * are kept so the user sees the failed indicator until they retry or dismiss. */

279+ private fun mergeOptimistic(

280+ sse: List<MessageWithParts>,

281+ optimistic: List<OptimisticEntry>,

282+ ): List<MessageWithParts> {

283+ if (optimistic.isEmpty()) return sse

284+ // Collect the text of real user messages so optimistic entries can be matched.

285+ val realUserTexts = mutableSetOf<String>()

286+ for (msg in sse) {

287+ if (msg.info !is UserMessage) continue

288+ val text = msg.parts.filterIsInstance<TextPart>()

289+ .joinToString("\n\n") { it.text }

290+ .trim()

291+ if (text.isNotEmpty()) realUserTexts.add(text)

292+ }

293+ val surviving = optimistic.filter { it.text.trim() !in realUserTexts }

294+ if (surviving.isEmpty()) return sse

295+ return sse + surviving.map { it.toMessageWithParts() }

296+ }

297+

298+ /** Remove optimistic entries whose text now matches a real user message delivered by SSE.

299+ * Called from the SSE flow's onEach so stale optimistic entries are cleaned up promptly. */

300+ private fun reconcileOptimistic(sse: List<MessageWithParts>) {

301+ if (_optimisticMessages.value.isEmpty()) return

302+ val realUserTexts = mutableSetOf<String>()

303+ for (msg in sse) {

304+ if (msg.info !is UserMessage) continue

305+ val text = msg.parts.filterIsInstance<TextPart>()

306+ .joinToString("\n\n") { it.text }

307+ .trim()

308+ if (text.isNotEmpty()) realUserTexts.add(text)

309+ }

310+ if (realUserTexts.isEmpty()) return

311+ _optimisticMessages.update { entries ->

312+ entries.filterNot { it.text.trim() in realUserTexts }

313+ }

314+ }

315+

316+ /** Convert an optimistic entry to a [MessageWithParts] for display. */

317+ private fun OptimisticEntry.toMessageWithParts(): MessageWithParts = MessageWithParts(

318+ info = UserMessage(

319+ id = tempId,

320+ sessionID = sessionId,

321+ time = soy.iko.opencode.data.model.TimeInfo(created = timestamp),

322+ ),

323+ parts = listOf(TextPart(id = "$tempId-text", text = text)),

324+ )

325+

326+ /** The agent's current task plan (the latest `todowrite`), surfaced so the chat can pin a

327+ * live progress checklist above the composer. distinctUntilChanged so a per-token messages

328+ * emission that doesn't change the plan doesn't recompose the bar.

329+ *

330+ * A [TodoPlanCache] memoizes the scan against the input list's identity, so a `combine`

331+ * re-evaluation that re-emits the same list instance (e.g. when the optimistic-messages

332+ * StateFlow updates without an SSE change) skips the O(messages×parts) re-scan. */

333+ private val todoPlanCache = TodoPlanCache()

334+ val todoPlan: StateFlow<List<TodoItem>> = messages

335+ .map { todoPlanCache.plan(it) }

336+ // Run the scan off the main thread: it's an O(messages×parts) scan (worst case

337+ // when the conversation has no todowrite) and runs on every conflated messages emission.

338+ // distinctUntilChanged is downstream so it dedupes the result but doesn't prevent the

339+ // scan — without flowOn this scans on Main.immediate per streamed token → jank.

340+ .flowOn(Dispatchers.Default)

341+ .distinctUntilChanged()

342+ .stateIn(

343+ scope = viewModelScope,

344+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

345+ initialValue = emptyList(),

346+ )

347+

348+ private val _running = MutableStateFlow(false)

349+ val running: StateFlow<Boolean> = _running.asStateFlow()

350+

351+ /**

352+ * True when the SSE stream dropped mid-run (a transient [Disconnected] while a run is

353+ * active). The UI uses this to switch the working indicator to a "stream interrupted /

354+ * reconnecting" visual instead of clearing [_running] outright — the run is still active

355+ * on the server, so showing it as finished would mislead the user into typing a follow-up

356+ * or navigating away. Cleared when the stream reconnects ([Connected]) or when a hard

357+ * failure ([Failed]/[AuthFailed]) genuinely clears [_running]. See the state watcher in

358+ * [init]. */

359+ private val _streamInterrupted = MutableStateFlow(false)

360+ val streamInterrupted: StateFlow<Boolean> = _streamInterrupted.asStateFlow()

361+

362+ /**

363+ * Wall-clock millis at which the current run started (0L when no run is active). Drives

364+ * the typing row's elapsed timer so it survives LazyColumn recycling — a local `remember`

365+ * in the row resets to 0:00 when the row is disposed and scrolled back into view. Stamped

366+ * only on a real false→[beginRun] transition (send/run/init), not on SSE-reconnect relight

367+ * (which continues an existing run and should keep its original elapsed time).

368+ */

369+ private val _runStartMs = MutableStateFlow(0L)

370+ val runStartMs: StateFlow<Long> = _runStartMs.asStateFlow()

371+

372+ /**

373+ * Atomically transition `_running` false→true and stamp the run-start timestamp. Returns

374+ * false (with no state change) when a run is already in flight, so callers can surface a

375+ * "busy" message instead of silently dropping the action. Centralizes the transition so

376+ * every run-start path captures [runStartMs] consistently.

377+ */

378+ private fun beginRun(): Boolean {

379+ if (!_running.compareAndSet(false, true)) return false

380+ _runStartMs.value = System.currentTimeMillis()

381+ return true

382+ }

383+

384+ /** True once the current run ended via SessionIdle/SessionError, until the next run starts

385+ * (a send) or an SSE reconnect. Gates the run-indicator re-light below: isRunActivity

386+ * returns true for ANY message.part.updated, so without this a trailing/replayed part

387+ * arriving after a legitimate SessionIdle would re-light the "working" indicator with no

388+ * further idle to clear it — a stuck spinner + foreground service. Cleared on reconnect so

389+ * genuine reconnect-recovery re-lighting (its actual purpose) still works. */

390+ @Volatile private var runEndedByIdle = false

391+

392+ /** The in-flight REST title resolution for the current connection. Launched from — and

393+ * cancelled by — the per-connection reset block so it can't observe or restore a previous

394+ * server's stale title. */

395+ private var sessionTitleJob: Job? = null

396+

397+ /** True while an abort REST call is in flight, so the Stop button can show a

398+ * spinner and prevent double-taps from firing a second abort. */

399+ private val _aborting = MutableStateFlow(false)

400+ val aborting: StateFlow<Boolean> = _aborting.asStateFlow()

401+

402+ /** A follow-up the user typed while a run was active. send() queues it here and

403+ * auto-sends once the run completes (SessionIdle), so the user isn't blocked with

404+ * no way to send and no indication why the Send button is gone. */

405+ private val _queuedFollowUp = MutableStateFlow<String?>(null)

406+ val queuedFollowUp: StateFlow<String?> = _queuedFollowUp.asStateFlow()

407+

408+ /** The text of the most recently-sent user prompt (captured in [send]), so an undo-able

409+ * Stop can re-send it. Only text-bearing prompts are tracked — an image-only prompt has

410+ * nothing to re-send text-wise. Cleared when a new run starts with different text. */

411+ private var lastSentPrompt: String? = null

412+

413+ /** One-shot event signals for an undoable Stop. The UI collects this and shows an

414+ * "Stopped — Undo" snackbar; tapping Undo calls [resendLastPrompt]. A Channel so an

415+ * emit before the UI subscribes is still delivered. */

416+ private val _stopUndoEvents = Channel<String?>(Channel.CONFLATED)

417+ val stopUndoEvents: Flow<String?> = _stopUndoEvents.receiveAsFlow()

418+

419+ /** One-shot error events surfaced as snackbars. A Channel (not SharedFlow) so an event

420+ * emitted before the UI subscribes is buffered and still delivered — a SharedFlow with

421+ * replay=0 would drop it (e.g. a VM-init catalog fetch failing before first

422+ * composition). Each event is delivered exactly once and not replayed to a

423+ * re-subscribing collector, so rotation doesn't re-show a stale snackbar. */

424+ private val _errorEvents = Channel<ChatError>(

425+ capacity = NetworkConfig.snackbarEventBufferCapacity,

426+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

427+ )

428+ val errorEvents: Flow<ChatError> = _errorEvents.receiveAsFlow()

429+

430+ /** One-shot events signaling a user-initiated delete was scheduled and is undoable in-place.

431+ * The ChatScreen collects these to show an Undo snackbar over the conversation the user is

432+ * already viewing, instead of navigating away first and surfacing Undo on the session list.

433+ * Carries the session id so a collector using `collectLatest` can withdraw a superseded

434+ * delete (see [cancelSessionDelete]) — a `Unit` event would leave the prior session's

435+ * deferred REST delete firing with no reachable Undo. */

436+ private val _deleteUndoEvents = MutableSharedFlow<String>(

437+ extraBufferCapacity = 1,

438+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

439+ )

440+ val deleteUndoEvents: SharedFlow<String> = _deleteUndoEvents.asSharedFlow()

441+

442+ private val _models = MutableStateFlow<List<ModelOption>>(emptyList())

443+ val models: StateFlow<List<ModelOption>> = _models.asStateFlow()

444+

445+ private val _modelsLoading = MutableStateFlow(true)

446+ val modelsLoading: StateFlow<Boolean> = _modelsLoading.asStateFlow()

447+

448+ private val _modelsError = MutableStateFlow(false)

449+ val modelsError: StateFlow<Boolean> = _modelsError.asStateFlow()

450+

451+ private val _selectedModel = MutableStateFlow<ModelOption?>(null)

452+ val selectedModel: StateFlow<ModelOption?> = _selectedModel.asStateFlow()

453+

454+ val connectionState: StateFlow<EventStreamClient.ConnectionState> =

455+ container.activeConnection

456+ .flatMapLatest { it?.events?.state ?: flowOf(EventStreamClient.ConnectionState.Disconnected) }

457+ .stateIn(

458+ scope = viewModelScope,

459+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

460+ initialValue = EventStreamClient.ConnectionState.Disconnected,

461+ )

462+

463+ /** SSE reconnect-attempt count for the active connection, surfaced so the chat's

464+ * connection banner can show "Reconnecting (attempt N)…" during a sustained outage. */

465+ val reconnectAttempts: StateFlow<Int> =

466+ container.activeConnection

467+ .flatMapLatest { it?.events?.reconnectAttempts ?: flowOf(0) }

468+ .stateIn(

469+ scope = viewModelScope,

470+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

471+ initialValue = 0,

472+ )

473+

474+ private val _pendingPermission = MutableStateFlow<Permission?>(null)

475+ val pendingPermission: StateFlow<Permission?> = _pendingPermission.asStateFlow()

476+

477+ /** Backlog indicator for the permission dialog (see [PermissionProgress]). */

478+ private val _permissionProgress = MutableStateFlow(PermissionProgress(0, 0))

479+ val permissionProgress: StateFlow<PermissionProgress> = _permissionProgress.asStateFlow()

480+

481+ /** Max number of permissions simultaneously pending since the queue was last empty. Reset

482+ * to 0 when the queue drains, so a fresh burst starts its count over. */

483+ private var maxPendingSeen = 0

484+

485+ // Unanswered permission requests keyed by id, insertion-ordered. The dialog shows the most

486+ // recent; when one is answered/replied — or a response fails — we fall back to the next so a

487+ // request that arrived while another was in flight isn't silently dropped (its tool run would

488+ // otherwise stay paused server-side with no UI affordance). Only touched on the VM's main

489+ // dispatcher (event collector + viewModelScope launches), so no extra synchronization is needed.

490+ private val pendingPermissions = LinkedHashMap<String, Permission>()

491+

492+ // Session-scoped permission grants (Allow-for-this-session). Each entry is a (type, patternText)

493+ // pair the user approved with PermissionResponse.SESSION. Subsequent matching requests are

494+ // auto-responded ONCE without showing the dialog, so e.g. a user granting "read" for one path

495+ // isn't re-prompted for every other file read in the same conversation. Cleared on connection

496+ // change (see the activeConnection collector) so it never leaks across servers. The server only

497+ // knows once/always/reject; SESSION is a client-side scope that maps to ONCE on the wire.

498+ private val sessionAllowed = mutableSetOf<Pair<String, String>>()

499+

500+ private fun enqueuePermission(permission: Permission) {

501+ // Auto-respond to a permission whose (type, pattern) the user previously granted for this

502+ // session, instead of showing the dialog again. Resolved immediately (not via the queue) so

503+ // the tool run isn't paused waiting for a dialog the user will never see.

504+ val type = permission.type.orEmpty()

505+ val pattern = permission.patternText.orEmpty()

506+ if (type.isNotEmpty() && sessionAllowed.contains(type to pattern)) {

507+ respondPermission(permission, PermissionResponse.ONCE)

508+ return

509+ }

510+ pendingPermissions[permission.id] = permission

511+ _pendingPermission.value = pendingPermissions.values.lastOrNull()

512+ updatePermissionProgress()

513+ }

514+

515+ private fun resolvePermission(id: String) {

516+ pendingPermissions.remove(id)

517+ _pendingPermission.value = pendingPermissions.values.lastOrNull()

518+ updatePermissionProgress()

519+ }

520+

521+ private fun clearPermissions() {

522+ pendingPermissions.clear()

523+ _pendingPermission.value = null

524+ updatePermissionProgress()

525+ }

526+

527+ /** Recompute the "N of M" backlog indicator. [maxPendingSeen] grows with the queue and

528+ * resets only when it drains, so position = total - remaining + 1 advances as requests are

529+ * answered. */

530+ private fun updatePermissionProgress() {

531+ val remaining = pendingPermissions.size

532+ if (remaining == 0) {

533+ maxPendingSeen = 0

534+ _permissionProgress.value = PermissionProgress(0, 0)

535+ return

536+ }

537+ if (remaining > maxPendingSeen) maxPendingSeen = remaining

538+ _permissionProgress.value = PermissionProgress(

539+ position = maxPendingSeen - remaining + 1,

540+ total = maxPendingSeen,

541+ )

542+ }

543+

544+ private val _agents = MutableStateFlow<List<Agent>>(emptyList())

545+ val agents: StateFlow<List<Agent>> = _agents.asStateFlow()

546+

547+ private val _agentsLoading = MutableStateFlow(true)

548+ val agentsLoading: StateFlow<Boolean> = _agentsLoading.asStateFlow()

549+

550+ private val _agentsError = MutableStateFlow(false)

551+ val agentsError: StateFlow<Boolean> = _agentsError.asStateFlow()

552+

553+ private val _selectedAgent = MutableStateFlow<String?>(null)

554+ val selectedAgent: StateFlow<String?> = _selectedAgent.asStateFlow()

555+

556+ private val _commands = MutableStateFlow<List<Command>>(emptyList())

557+ val commands: StateFlow<List<Command>> = _commands.asStateFlow()

558+

559+ private val _commandsLoading = MutableStateFlow(true)

560+ val commandsLoading: StateFlow<Boolean> = _commandsLoading.asStateFlow()

561+

562+ private val _commandsError = MutableStateFlow(false)

563+ val commandsError: StateFlow<Boolean> = _commandsError.asStateFlow()

564+

565+ private val _sessionTitle = MutableStateFlow<String?>(null)

566+ val sessionTitle: StateFlow<String?> = _sessionTitle.asStateFlow()

567+

568+ /** Set when the current session is deleted via SSE, so the UI can navigate away. */

569+ private val _sessionDeleted = MutableStateFlow(false)

570+ val sessionDeleted: StateFlow<Boolean> = _sessionDeleted.asStateFlow()

571+

572+ /** The text of the last send that failed, surfaced so the UI can offer a retry. */

573+ private val _failedDraft = MutableStateFlow<String?>(null)

574+ val failedDraft: StateFlow<String?> = _failedDraft.asStateFlow()

575+

576+ /** The idempotency key of the last failed online send, stashed alongside [_failedDraft] so

577+ * [retryFailed] re-submits with the SAME key. A retry after a lost response is then

578+ * deduplicated server-side instead of starting a duplicate agent run. */

579+ @Volatile private var failedIdempotencyKey: String? = null

580+

581+ /** Per-session draft, persisted so it survives navigation/process death. */

582+ private val _draft = MutableStateFlow(container.draftStore.get(sessionId))

583+ val draft: StateFlow<String> = _draft.asStateFlow()

584+

585+ /** A pending quote-reply preview (the raw text the user quoted), shown as a dismissible

586+ * card above the composer so the user can see and cancel the quote before sending. Cleared

587+ * on send or via [cancelQuoteReply]. The actual `>` prefixed lines are still folded into

588+ * the draft for the server; this state is purely for the visual preview chip. */

589+ private val _pendingQuote = MutableStateFlow<String?>(null)

590+ val pendingQuote: StateFlow<String?> = _pendingQuote.asStateFlow()

591+

592+ /** Messages composed for this session while offline/disconnected, queued in the outbox and

593+ * awaiting an automatic flush on reconnect. Surfaced so the composer can show a "queued"

594+ * chip with a discard/send-now affordance. */

595+ val outbox: StateFlow<List<OutboxMessage>> =

596+ container.outboxStore.messages

597+ .map { list -> list.filter { it.sessionId == sessionId } }

598+ .stateIn(

599+ scope = viewModelScope,

600+ started = SharingStarted.WhileSubscribed(NetworkConfig.stateFlowSubscriptionTimeoutMs),

601+ initialValue = emptyList(),

602+ )

603+

604+ /** Attachments staged for the next prompt (images/files). Persisted per-session (as their

605+ * self-contained base64 data URLs) via [AttachmentDraftStore] so an interrupted compose

606+ * survives process death — the source content Uris wouldn't survive, but the data URLs

607+ * do. Cleared on a successful send. */

608+ private val _attachments = MutableStateFlow<List<PendingAttachment>>(emptyList())

609+ val attachments: StateFlow<List<PendingAttachment>> = _attachments.asStateFlow()

610+

611+ // Count of picks currently being read + base64-encoded off the main thread, so the

612+ // composer can show a staging placeholder immediately (chips only materialize once done).

613+ // Exposed as StateFlows (not Compose state) so they survive a config change: the staging

614+ // work runs on viewModelScope (which survives rotation), so the counters must live on the

615+ // VM too — remember { mutableStateOf(0) } in the composable would reset to 0 on rotation

616+ // and lose the staging chip mid-encode.

617+ private val _stagingCount = MutableStateFlow(0)

618+ val stagingCount: StateFlow<Int> = _stagingCount.asStateFlow()

619+ // Total number of files still being staged across all in-flight batches, so the

620+ // staging chip can show "Staging N files…" rather than a bare indeterminate spinner.

621+ private val _stagingFileTotal = MutableStateFlow(0)

622+ val stagingFileTotal: StateFlow<Int> = _stagingFileTotal.asStateFlow()

623+

624+ /** True while a revert checkpoint is active for this session (messages after it are hidden

625+ * server-side). Drives the "reverted" banner with its Undo. */

626+ private val _reverted = MutableStateFlow(false)

627+ val reverted: StateFlow<Boolean> = _reverted.asStateFlow()

628+

629+ /** True when the revert was triggered by an Edit action (vs a bare Revert). Drives the

630+ * banner's copy so it reads "Editing message" rather than "Reverted", making the composer's

631+ * prefilled text unambiguous. Cleared on unrevert and on send. */

632+ private val _editing = MutableStateFlow(false)

633+ val editing: StateFlow<Boolean> = _editing.asStateFlow()

634+

635+ /** The diff of the active revert checkpoint, when the server includes one. Shown in the

636+ * revert banner so the user can see what changed before deciding to undo. Null when the

637+ * session isn't reverted or the server didn't send a diff. */

638+ private val _revertDiff = MutableStateFlow<String?>(null)

639+ val revertDiff: StateFlow<String?> = _revertDiff.asStateFlow()

640+

641+ /** The active public share URL for this session, or null when not shared. */

642+ private val _shareUrl = MutableStateFlow<String?>(null)

643+ val shareUrl: StateFlow<String?> = _shareUrl.asStateFlow()

644+

645+ /** One-shot events carrying a freshly-created share URL so the UI can copy/share it. */

646+ private val _shareLinkEvents = Channel<String>(

647+ capacity = NetworkConfig.snackbarEventBufferCapacity,

648+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

649+ )

650+ val shareLinkEvents: Flow<String> = _shareLinkEvents.receiveAsFlow()

651+

652+ /** One-shot events carrying the id of a session freshly branched from a message, so the

653+ * UI can navigate to it. */

654+ private val _branchEvents = Channel<String>(

655+ capacity = NetworkConfig.snackbarEventBufferCapacity,

656+ onBufferOverflow = BufferOverflow.DROP_OLDEST,

657+ )

658+ val branchEvents: Flow<String> = _branchEvents.receiveAsFlow()

659+

660+ init {

661+ // DraftStore loads SharedPreferences asynchronously; on a cold start the

662+ // synchronous get() above returns "" until the background load completes.

663+ // Observe the ready signal and re-seed the draft so it appears in the UI.

664+ viewModelScope.launch {

665+ container.draftStore.ready.collect { ready ->

666+ if (!ready) return@collect

667+ if (_draft.value.isEmpty()) {

668+ _draft.value = container.draftStore.get(sessionId)

669+ }

670+ // Recover a follow-up queued before process death (its in-memory StateFlow

671+ // is gone). If the input is now free, drop it back there for review/send and

672+ // consume the stored copy; otherwise re-queue it so it auto-sends when the

673+ // current run next idles. Guarded on == null so it never clobbers a

674+ // follow-up the user queued after opening this session.

675+ val savedFollowUp = container.draftStore.getFollowUp(sessionId)

676+ if (savedFollowUp.isNotEmpty() && _queuedFollowUp.value == null) {

677+ if (_draft.value.isEmpty()) {

678+ _draft.value = savedFollowUp

679+ container.draftStore.flushFollowUp(sessionId, "")

680+ } else {

681+ _queuedFollowUp.value = savedFollowUp

682+ }

683+ }

684+ }

685+ }

686+ // Observe the drafts store for external mutations to this session's draft

687+ // (e.g. a share injected via draftStore.set in two-pane mode, or setImmediate

688+ // before navigation in single-pane mode). Without this, a share injected into

689+ // an already-open session never appears in the input field — the init-time

690+ // read and the ready-only re-seed miss it when the draft is non-empty.

691+ // The VM's own debounced persist writes the same value _draft already holds,

692+ // so those updates are no-ops here (storeValue == _draft.value). The

693+ // suppressDraftPersist guard prevents a stale store value from clobbering

694+ // the deliberate draft clear during a send (the store still holds the

695+ // pre-send draft until the send resolves).

696+ viewModelScope.launch {

697+ container.draftStore.drafts.collect { drafts ->

698+ // Ignore emissions until the initial disk load completes: the load itself

699+ // emits the persisted snapshot, and applying it here would clobber text the

700+ // user typed during the async load (the `ready` observer above seeds an

701+ // empty draft). After ready, emissions are external writes.

702+ if (!container.draftStore.ready.value) return@collect

703+ val storeValue = drafts[sessionId].orEmpty()

704+ // Ignore this VM's own (debounced, possibly stale) persistence echo — only a

705+ // genuine external write (e.g. a two-pane share injection) should overwrite

706+ // the live draft.

707+ if (storeValue == lastPersistedDraft) return@collect

708+ if (storeValue != _draft.value && !suppressDraftPersist.get()) {

709+ _draft.value = storeValue

710+ }

711+ }

712+ }

713+ }

714+

715+ init {

716+ // Restore attachments staged before process death. They were persisted as

717+ // self-contained data URLs, so they re-send and (for images) re-preview intact.

718+ // Guarded on empty so it never clobbers attachments the user staged after opening.

719+ viewModelScope.launch {

720+ val restored = runCatchingCancellable { container.attachmentDraftStore.load(sessionId) }

721+ .getOrDefault(emptyList())

722+ if (restored.isNotEmpty() && _attachments.value.isEmpty()) {

723+ _attachments.value = restored.map { it.toPending() }

724+ }

725+ }

726+ }

727+

728+ fun selectModel(option: ModelOption) { _selectedModel.value = option }

729+

730+ fun selectAgent(name: String?) { _selectedAgent.value = name }

731+

732+ fun reloadModels() {

733+ val conn = connection ?: return

734+ viewModelScope.launch {

735+ conn.api.invalidateProvidersCache()

736+ _modelsReload.value++

737+ }

738+ }

739+

740+ fun reloadAgents() {

741+ val conn = connection ?: return

742+ viewModelScope.launch {

743+ conn.api.invalidateAgentsCache()

744+ _agentsReload.value++

745+ }

746+ }

747+

748+ fun reloadCommands() {

749+ val conn = connection ?: return

750+ viewModelScope.launch {

751+ conn.api.invalidateCommandsCache()

752+ _commandsReload.value++

753+ }

754+ }

755+

756+ /**

757+ * Shared helper for init-block catalog observers: re-fetches whenever the active

758+ * connection or the catalog's reload trigger changes, invoking [onNull] to clear

759+ * state on null so stale data from the old server doesn't persist. The

760+ * [reloadTrigger] is merged with [activeConnection] so a manual reload (via

761+ * reloadModels/reloadAgents/reloadCommands) cancels any in-flight observe fetch

762+ * via collectLatest, preventing a stale observe result from overwriting a fresh

763+ * reload result. Failure is non-fatal — the error flag is surfaced to the UI.

764+ */

765+ private fun <T> observeCatalog(

766+ tag: String,

767+ loading: MutableStateFlow<Boolean>,

768+ error: MutableStateFlow<Boolean>,

769+ fetch: suspend (soy.iko.opencode.data.network.OpencodeApiClient) -> T,

770+ onSuccess: suspend (T) -> Unit,

771+ onNull: () -> Unit,

772+ reloadTrigger: StateFlow<Int>,

773+ ) {

774+ viewModelScope.launch {

775+ merge(container.activeConnection, reloadTrigger).collectLatest { _ ->

776+ val conn = container.activeConnection.value

777+ if (conn == null) { onNull(); loading.value = false; error.value = false; return@collectLatest }

778+ loading.value = true

779+ error.value = false

780+ runCatchingCancellable { fetch(conn.api) }

781+ // fetch() does HTTP via withRetry, so the failure can be a

782+ // ClientRequestException whose message embeds the full request URL

783+ // (may contain auth/paths). Log only a scrubbed summary.

784+ .onFailure { Log.w("ChatViewModel", "Failed to load $tag: ${safeExceptionSummary(it)}"); error.value = true }

785+ .getOrNull()?.let { onSuccess(it) }

786+ loading.value = false

787+ }

788+ }

789+ }

790+

791+ fun updateDraft(text: String) {

792+ _draft.value = text

793+ }

794+

795+ init {

796+ // Debounce draft persistence so we don't write to disk on every keystroke.

797+ // Skip persisting empty drafts that were set by send() (suppressed via

798+ // suppressDraftPersist) — send() clears the in-memory draft immediately for

799+ // UI feedback but deliberately doesn't persist the clear until the send

800+ // succeeds, so a failed send can restore the draft.

801+ viewModelScope.launch {

802+ _draft.drop(1).debounce(NetworkConfig.draftDebounceMs).collect { text ->

803+ if (text.isBlank() && suppressDraftPersist.get()) return@collect

804+ lastPersistedDraft = text

805+ runCatchingCancellable { container.draftStore.set(sessionId, text) }

806+ .onFailure { Log.w("ChatViewModel", "Failed to persist draft", it) }

807+ }

808+ }

809+ // Reset per-connection state when the active server changes so stale spinners,

810+ // permission dialogs, errors, and agent selections from the old server don't

811+ // persist into the new one.

812+ viewModelScope.launch {

813+ container.activeConnection.collectLatest { conn ->

814+ if (conn == null) {

815+ // The connection dropped (e.g. disconnect() mid-run). No SSE stream will

816+ // arrive to deliver SessionIdle/SessionError, so reset the run state here —

817+ // otherwise the working spinner sticks on, ChatScreen keeps keepScreenOn +

818+ // the RunForegroundService alive, and the Stop button no-ops (abort() early-

819+ // returns with no connection) until a later reconnect happens to clear it.

820+ _running.value = false

821+ _streamInterrupted.value = false

822+ _aborting.value = false

823+ clearPermissions()

824+ sessionAllowed.clear()

825+ sessionTitleJob?.cancel()

826+ _revertDiff.value = null

827+ return@collectLatest

828+ }

829+ _running.value = false

830+ _streamInterrupted.value = false

831+ // Allow the re-light below to recover a still-running run after this (re)connect;

832+ // a run that actually finished during the outage emits no live parts, so this

833+ // won't spuriously re-light.

834+ runEndedByIdle = false

835+ clearPermissions()

836+ sessionAllowed.clear()

837+ _failedDraft.value = null

838+ _revertDiff.value = null

839+ // NOTE: deliberately not clearing _queuedFollowUp here. It's session-scoped

840+ // user intent that is now persisted; wiping it on every (re)connect — which

841+ // this collector does, including transient SSE drops and the cold-start

842+ // restore path — would drop a legitimately queued/recovered follow-up.

843+ _selectedAgent.value = null

844+ // Apply the user's persisted preferred-agent for this new session/load, so a

845+ // user who always runs a specific agent doesn't have to pick it every session.

846+ // No-op when the preference is empty (the server default applies). Read here

847+ // (not in the agent-catalog onSuccess) because the catalog loads once per

848+ // connection while this reset fires per-session-open; setting it once on

849+ // connect is enough and avoids re-applying it on every catalog refresh.

850+ runCatchingCancellable {

851+ val pref = container.settingsStore.preferredAgentName.first()

852+ if (pref.isNotEmpty()) _selectedAgent.value = pref

853+ }

854+ _sessionTitle.value = null

855+ // Resolve the app-bar title via REST for THIS connection. Launched from the same

856+ // block that just nulled _sessionTitle (and cancelled the previous fetch) so it can

857+ // never observe or restore the previous server's stale title — the old separate

858+ // collector could, racing that reset. The assignment is guarded on a still-null

859+ // title so a fresher SSE SessionUpdated (from the event collector below) wins.

860+ sessionTitleJob?.cancel()

861+ sessionTitleJob = viewModelScope.launch {

862+ runCatchingCancellable { conn.repository.listSessions() }

863+ .getOrNull()

864+ ?.firstOrNull { it.id == sessionId }

865+ ?.let { session ->

866+ if (_sessionTitle.value == null) {

867+ _sessionTitle.value = session.displayTitle

868+ _reverted.value = session.isReverted

869+ _revertDiff.value = session.revert?.diff?.takeIf { it.isNotBlank() }

870+ _shareUrl.value = session.share?.url?.takeIf { it.isNotBlank() }

871+ }

872+ }

873+ }

874+ try {

875+ // Loop the inner collect so a transient non-cancellation exception (a

876+ // malformed SSE event decoding error, an unexpected channel close)

877+ // doesn't terminate the event collector for this connection. Without

878+ // the loop, the catch returns the collectLatest lambda normally, so

879+ // collectLatest considers this connection's block complete and never

880+ // re-runs it — the chat would go permanently silent (no streaming,

881+ // no permission prompts, no title updates) until a server switch.

882+ while (currentCoroutineContext().isActive) {

883+ try {

884+ conn.events.events.collect { event ->

885+ if (SessionRepository.isIdle(event, sessionId)) {

886+ _running.value = false

887+ runEndedByIdle = true

888+ // Auto-send a queued follow-up once the previous run finishes,

889+ // so the user's drafted-while-running message isn't lost.

890+ // The follow-up is cleared *inside* send()'s launched

891+ // coroutine (via queuedFollowUpToClear), so a scope

892+ // cancellation between this point and the coroutine

893+ // starting drops the launch without wiping the persisted

894+ // follow-up — recovery on next session open instead of

895+ // silent data loss.

896+ val queued = _queuedFollowUp.value

897+ if (queued != null) {

898+ send(queued, includeAttachments = false, queuedFollowUpToClear = queued)

899+ }

900+ }

901+ if (SessionRepository.isError(event, sessionId)) {

902+ _running.value = false

903+ runEndedByIdle = true

904+ // The run errored, so the queued follow-up won't auto-send.

905+ // Restore it to the input (if free) so the user's typed text

906+ // isn't silently lost; otherwise just clear the queue.

907+ val queued = _queuedFollowUp.value

908+ if (!queued.isNullOrEmpty() && _draft.value.isEmpty()) {

909+ _draft.value = queued

910+ }

911+ setQueuedFollowUp(null)

912+ _errorEvents.trySend(ChatError(container.string(R.string.error_agent_reported)))

913+ }

914+ // Restore the run indicator if a live streaming event arrives while it's

915+ // cleared — e.g. an SSE reconnect mid-run reset _running to false, but the

916+ // agent is still working. Don't revive it once the user has hit Stop.

917+ val relightRunIndicator = SessionRepository.isRunActivity(event, sessionId) &&

918+ !_aborting.value && !_running.value && !runEndedByIdle

919+ if (relightRunIndicator) {

920+ _running.value = true

921+ }

922+ when (event) {

923+ is PermissionUpdated ->

924+ if (event.properties.sessionID == sessionId) enqueuePermission(event.properties)

925+ is PermissionReplied ->

926+ if (event.properties.sessionID == sessionId) event.properties.permissionID?.let { resolvePermission(it) }

927+ is SessionUpdated ->

928+ if (event.properties.info.id == sessionId) {

929+ val info = event.properties.info

930+ _sessionTitle.value = info.displayTitle

931+ _reverted.value = info.isReverted

932+ _revertDiff.value = info.revert?.diff?.takeIf { it.isNotBlank() }

933+ _shareUrl.value = info.share?.url?.takeIf { it.isNotBlank() }

934+ }

935+ is SessionDeleted ->

936+ if (event.properties.info?.id == sessionId || event.properties.sessionID == sessionId) {

937+ _sessionDeleted.value = true

938+ }

939+ else -> {}

940+ }

941+ }

942+ } catch (e: CancellationException) {

943+ throw e

944+ } catch (e: Exception) {

945+ Log.w("ChatViewModel", "SSE event collector error, restarting", e)

946+ }

947+ }

948+ } catch (e: CancellationException) {

949+ throw e

950+ } catch (e: Exception) {

951+ Log.w("ChatViewModel", "SSE event collector loop error", e)

952+ }

953+ }

954+ }

955+ // Load the model catalog; preselect the server default. Failure is non-fatal —

956+ // sending with no model just uses the server's default agent/model.

957+ observeCatalog(

958+ tag = "model catalog",

959+ loading = _modelsLoading,

960+ error = _modelsError,

961+ fetch = { it.providers() },

962+ onSuccess = { resp ->

963+ val options = resp.toOptions()

964+ _models.value = options

965+ // Only (re)apply the default when there's no valid current selection. On

966+ // re-fetch/reconnect/Retry the user's chosen model must survive — keep it as

967+ // long as it's still present in the refreshed list. When there's no current

968+ // selection, prefer the user's persisted default-model preference (if it's in

969+ // the list) over the server default, so a user who always picks a specific

970+ // model doesn't have to pick it every new session.

971+ val current = _selectedModel.value

972+ if (current == null || options.none { it.ref == current.ref }) {

973+ val prefId = runCatchingCancellable {

974+ container.settingsStore.preferredModelId.first()

975+ }.getOrDefault("")

976+ val preferredOption = if (prefId.isNotEmpty()) {

977+ options.firstOrNull { it.modelID == prefId }

978+ } else null

979+ _selectedModel.value = preferredOption ?: resp.defaultOption(options)

980+ }

981+ },

982+ onNull = { _models.value = emptyList(); _selectedModel.value = null },

983+ reloadTrigger = _modelsReload,

984+ )

985+ // Load the agent catalog (non-fatal).

986+ observeCatalog(

987+ tag = "agent catalog",

988+ loading = _agentsLoading,

989+ error = _agentsError,

990+ fetch = { it.agents() },

991+ onSuccess = { _agents.value = it },

992+ onNull = { _agents.value = emptyList() },

993+ reloadTrigger = _agentsReload,

994+ )

995+ // Load the command catalog (non-fatal).

996+ observeCatalog(

997+ tag = "command catalog",

998+ loading = _commandsLoading,

999+ error = _commandsError,

1000+ fetch = { it.commands() },

1001+ onSuccess = { _commands.value = it },

1002+ onNull = { _commands.value = emptyList() },

1003+ reloadTrigger = _commandsReload,

1004+ )

1005+ // If the SSE stream drops mid-run, the run indicator would spin forever;

1006+ // reset it so the UI doesn't look stuck while the banner shows "Reconnecting…".

1007+ // On a *transient* drop (Disconnected) we don't clear _running — the run is still

1008+ // active on the server, and showing it as finished would mislead the user. Instead

1009+ // we set _streamInterrupted so the working row switches to a "reconnecting" visual.

1010+ // On a *hard* failure (Failed/AuthFailed) the run genuinely can't continue without

1011+ // user action, so _running is cleared. _streamInterrupted is cleared on Connected.

1012+ viewModelScope.launch {

1013+ container.activeConnection.collectLatest { conn ->

1014+ if (conn == null) return@collectLatest

1015+ try {

1016+ // Loop so a transient non-cancellation exception doesn't terminate the

1017+ // state watcher for this connection. Without the loop, a single thrown

1018+ // error returns the collectLatest lambda and the _running reset on

1019+ // Disconnected/Failed never fires again for this connection — a dropped

1020+ // stream leaves the working spinner (and the RunForegroundService) stuck.

1021+ while (currentCoroutineContext().isActive) {

1022+ try {

1023+ conn.events.state.collect { state ->

1024+ when (state) {

1025+ EventStreamClient.ConnectionState.Connected -> {

1026+ _streamInterrupted.value = false

1027+ }

1028+ EventStreamClient.ConnectionState.Disconnected -> {

1029+ // Transient: the stream dropped but the system is

1030+ // reconnecting. Flag interrupted so the working row

1031+ // shows a "reconnecting" state instead of vanishing.

1032+ if (_running.value) _streamInterrupted.value = true

1033+ }

1034+ EventStreamClient.ConnectionState.Failed,

1035+ EventStreamClient.ConnectionState.AuthFailed -> {

1036+ // Hard failure: the run can't continue without user

1037+ // action (fix credentials / server). Clear running and

1038+ // the interrupted flag so the UI doesn't look stuck.

1039+ _streamInterrupted.value = false

1040+ if (_running.value) _running.value = false

1041+ }

1042+ EventStreamClient.ConnectionState.Connecting -> {

1043+ // Initial connect or reconnect attempt; leave running

1044+ // as-is — interrupted (if set) stays until Connected.

1045+ }

1046+ }

1047+ }

1048+ } catch (e: CancellationException) {

1049+ throw e

1050+ } catch (e: Exception) {

1051+ Log.w("ChatViewModel", "SSE state collector error, restarting", e)

1052+ }

1053+ }

1054+ } catch (e: CancellationException) {

1055+ throw e

1056+ } catch (e: Exception) {

1057+ Log.w("ChatViewModel", "SSE state collector loop error", e)

1058+ }

1059+ }

1060+ }

1061+ }

1062+

1063+ /** Sends [text] together with any staged attachments; returns true on success so the

1064+ * caller can clear the draft only then. */

1065+ fun send(text: String): Boolean = send(text, includeAttachments = true)

1066+

1067+ /**

1068+ * Core send. [includeAttachments] is false for the internal auto-send paths (a queued

1069+ * follow-up, a retry) so staged attachments aren't silently re-sent with unrelated text.

1070+ *

1071+ * [queuedFollowUpToClear] is the text of a queued follow-up being auto-sent (from

1072+ * SessionIdle). When non-null, the follow-up is cleared from persistence *inside* the

1073+ * launched coroutine — so if [viewModelScope] is cancelled before the coroutine runs

1074+ * (e.g. the user navigates away at the exact moment SessionIdle arrives), the clear

1075+ * never executes and the follow-up remains persisted, recovered on the next open of

1076+ * this session. Clearing it before the launch (the prior approach) could lose the

1077+ * follow-up entirely: the launch would be dropped by cancellation but the persisted

1078+ * copy was already wiped.

1079+ */

1080+ @Suppress("CyclomaticComplexMethod")

1081+ private fun send(

1082+ text: String,

1083+ includeAttachments: Boolean,

1084+ idempotencyKey: String? = null,

1085+ queuedFollowUpToClear: String? = null,

1086+ ): Boolean {

1087+ val trimmed = text.trim()

1088+ val attachments = if (includeAttachments) _attachments.value else emptyList()

1089+ // An image-only prompt (attachments, no text) is valid; a blank prompt with nothing

1090+ // attached is not.

1091+ if (trimmed.isEmpty() && attachments.isEmpty()) return false

1092+ // Offline, or no active connection: queue the prompt to the outbox (flushed on

1093+ // reconnect) instead of failing the send. Device-offline is caught even when a stale

1094+ // connection object lingers, so a phone that lost signal mid-conversation still

1095+ // captures the message rather than bouncing it off a dead socket.

1096+ val conn = connection

1097+ if (conn == null || !container.isOnline.value) {

1098+ return enqueueOffline(trimmed, attachments)

1099+ }

1100+ if (!beginRun()) return false

1101+ // A new run is starting: reopen the re-light gate so this run's streamed parts keep the

1102+ // indicator lit (and a later SessionIdle re-closes it).

1103+ runEndedByIdle = false

1104+ // A plain manual Send of the auto-restored failed draft must reuse the stashed key too

1105+ // (retryFailed passes it explicitly; the composer's Send does not), so a lost-response

1106+ // re-send stays deduplicated server-side instead of starting a duplicate agent run.

1107+ // Capture the match BEFORE clearing _failedDraft just below.

1108+ val reuseKey = if (idempotencyKey == null && trimmed == _failedDraft.value?.trim()) {

1109+ failedIdempotencyKey

1110+ } else {

1111+ null

1112+ }

1113+ _failedDraft.value = null

1114+ // Stable idempotency key for THIS online attempt: a brand-new message gets a fresh key,

1115+ // while retryFailed() (or a manual re-send of the restored failed draft) re-submits with the

1116+ // key it stashed on the original failure — so a retry after a lost response is deduplicated

1117+ // server-side (no duplicate agent run).

1118+ val key = idempotencyKey ?: reuseKey ?: java.util.UUID.randomUUID().toString()

1119+ // Clear the staged attachments optimistically so the composer empties immediately;

1120+ // restore them if the send fails (mirrors the draft handling below).

1121+ if (attachments.isNotEmpty()) _attachments.value = emptyList()

1122+ // Clear the in-memory draft for the UI immediately, but don't persist the clear

1123+ // yet — if the send fails and the process dies before we restore, the draft

1124+ // would be lost forever. The persisted draft is cleared only on success.

1125+ // suppressDraftPersist prevents the debounced collector from persisting the

1126+ // empty draft before the send resolves.

1127+ //

1128+ // Only clear when the text being sent IS the current draft. send() is also

1129+ // invoked for auto-sent queued follow-ups (SessionIdle) and retryFailed(), where

1130+ // the user may have typed a NEW draft since — wiping it would lose that text.

1131+ if (_draft.value.trim() == trimmed) {

1132+ suppressDraftPersist.set(true)

1133+ _draft.value = ""

1134+ _pendingQuote.value = null

1135+ _editing.value = false

1136+ }

1137+ // Inject an optimistic user message so the outgoing prompt is visible immediately,

1138+ // before the server echoes it back via SSE. Removed by reconcileOptimistic once the

1139+ // real UserMessage arrives. Only for text-bearing prompts (an image-only prompt has

1140+ // no text to show).

1141+ val optimisticId = if (trimmed.isNotEmpty()) "__optimistic_${System.nanoTime()}" else null

1142+ if (optimisticId != null) {

1143+ // Clear any prior failed optimistic entry with the same text (a retry re-sends).

1144+ _optimisticMessages.update { entries -> entries.filterNot { it.failed && it.text.trim() == trimmed } }

1145+ _optimisticMessages.update { it + OptimisticEntry(optimisticId, trimmed, System.currentTimeMillis(), failed = false) }

1146+ }

1147+ // Remember the sent text so an undoable Stop can re-send it. Overwrite unconditionally:

1148+ // an image-only prompt has nothing to re-send, and leaving a prior text prompt tracked

1149+ // would make Stop-Undo silently re-send that unrelated earlier message.

1150+ lastSentPrompt = trimmed.takeIf { it.isNotEmpty() }

1151+ viewModelScope.launch {

1152+ // Clear a queued follow-up being auto-sent *inside* the launched coroutine, so a

1153+ // scope cancellation between send() being called and the coroutine starting drops

1154+ // the launch without wiping the persisted follow-up — the follow-up is then

1155+ // recovered on the next session open instead of being silently lost.

1156+ if (queuedFollowUpToClear != null) setQueuedFollowUp(null)

1157+ runCatchingCancellable {

1158+ conn.repository.sendPrompt(

1159+ sessionId,

1160+ trimmed,

1161+ attachments = attachments.map { it.part },

1162+ model = _selectedModel.value?.ref,

1163+ agent = _selectedAgent.value,

1164+ idempotencyKey = key,

1165+ )

1166+ }.onFailure {

1167+ // Mark the optimistic message as failed so the user sees a failure indicator

1168+ // instead of a perpetual "sending" state.

1169+ if (optimisticId != null) {

1170+ _optimisticMessages.update { entries ->

1171+ entries.map { if (it.tempId == optimisticId) it.copy(failed = true) else it }

1172+ }

1173+ }

1174+ suppressDraftPersist.set(false)

1175+ _failedDraft.value = trimmed

1176+ failedIdempotencyKey = key

1177+ // Only restore the draft if the user hasn't typed anything new since.

1178+ if (_draft.value.isBlank()) updateDraft(trimmed)

1179+ // Restore the staged attachments too, so a failed send doesn't lose them —

1180+ // but only if the user hasn't staged new ones in the meantime.

1181+ if (attachments.isNotEmpty() && _attachments.value.isEmpty()) _attachments.value = attachments

1182+ // Re-persist so the restored attachments survive process death after a failure.

1183+ persistAttachments()

1184+ // Retryable: this is the failed send whose prompt Retry re-submits.

1185+ _errorEvents.trySend(ChatError(container.friendlyError(it), retryable = true))

1186+ _running.value = false

1187+ }.onSuccess {

1188+ suppressDraftPersist.set(false)

1189+ // This attempt reached the server, so the stashed retry key is spent — drop it so a

1190+ // later unrelated send can't reuse it (retryFailed clears it on success too).

1191+ failedIdempotencyKey = null

1192+ // Send succeeded — the attachments rode along, so clear their persisted copy

1193+ // (or keep any the user staged after the optimistic clear).

1194+ persistAttachments()

1195+ // Send succeeded — persist the cleared draft, but only if the user hasn't

1196+ // typed a new one while the send was in flight. Otherwise clearing the

1197+ // store echoes back through the draft observer and wipes the in-progress

1198+ // text (data loss). Mirrors the guard on the failure path above.

1199+ if (_draft.value.isBlank()) {

1200+ lastPersistedDraft = ""

1201+ container.draftStore.set(sessionId, "")

1202+ }

1203+ // Don't reset _running here: the agent continues streaming via SSE.

1204+ // _running is cleared on SessionIdle/SessionError (see event collector)

1205+ // or when the SSE stream drops (see connection state watcher below).

1206+ }

1207+ }

1208+ return true

1209+ }

1210+

1211+ /**

1212+ * Queue [trimmed] (+ [attachments]) to the offline outbox, clearing the composer

1213+ * optimistically like a real send. AppContainer flushes the outbox automatically on

1214+ * reconnect. The prompt is attributed to the active (or most-recent) server profile so a

1215+ * reconnect to a different server doesn't misfire it. On any failure the draft/attachments

1216+ * are restored so nothing is lost.

1217+ */

1218+ private fun enqueueOffline(trimmed: String, attachments: List<PendingAttachment>): Boolean {

1219+ _failedDraft.value = null

1220+ if (attachments.isNotEmpty()) _attachments.value = emptyList()

1221+ val clearDraft = _draft.value.trim() == trimmed

1222+ if (clearDraft) {

1223+ suppressDraftPersist.set(true)

1224+ _draft.value = ""

1225+ }

1226+ viewModelScope.launch {

1227+ val profileId = connection?.profile?.id

1228+ ?: runCatchingCancellable { container.profileStore.profiles.first().firstOrNull()?.id }.getOrNull()

1229+ if (profileId == null) {

1230+ // No server to attribute the message to — restore the composer and report it

1231+ // rather than silently dropping the prompt.

1232+ suppressDraftPersist.set(false)

1233+ if (_draft.value.isBlank()) updateDraft(trimmed)

1234+ if (attachments.isNotEmpty() && _attachments.value.isEmpty()) _attachments.value = attachments

1235+ persistAttachments()

1236+ _errorEvents.trySend(ChatError(container.string(R.string.no_servers_to_reconnect)))

1237+ return@launch

1238+ }

1239+ runCatchingCancellable {

1240+ container.outboxStore.enqueue(

1241+ OutboxMessage(

1242+ id = java.util.UUID.randomUUID().toString(),

1243+ profileId = profileId,

1244+ sessionId = sessionId,

1245+ text = trimmed,

1246+ attachments = attachments.map { it.toPersisted() },

1247+ model = _selectedModel.value?.ref,

1248+ agent = _selectedAgent.value,

1249+ createdAt = System.currentTimeMillis(),

1250+ ),

1251+ )

1252+ }.onSuccess {

1253+ suppressDraftPersist.set(false)

1254+ // The staged attachments now live in the outbox item; clear their draft copy.

1255+ persistAttachments()

1256+ if (_draft.value.isBlank()) {

1257+ lastPersistedDraft = ""

1258+ container.draftStore.set(sessionId, "")

1259+ }

1260+ // Nudge a flush in case we're actually online with a live connection.

1261+ container.flushOutbox()

1262+ _errorEvents.trySend(ChatError(container.string(R.string.outbox_queued)))

1263+ }.onFailure {

1264+ suppressDraftPersist.set(false)

1265+ if (_draft.value.isBlank()) updateDraft(trimmed)

1266+ if (attachments.isNotEmpty() && _attachments.value.isEmpty()) _attachments.value = attachments

1267+ persistAttachments()

1268+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1269+ }

1270+ }

1271+ return true

1272+ }

1273+

1274+ /** Discard a single queued (offline) message. */

1275+ fun discardQueued(id: String) {

1276+ viewModelScope.launch { runCatchingCancellable { container.outboxStore.remove(id) } }

1277+ }

1278+

1279+ /** Discard every queued (offline) message for this session. */

1280+ fun discardAllQueued() {

1281+ viewModelScope.launch { runCatchingCancellable { container.outboxStore.removeForSession(sessionId) } }

1282+ }

1283+

1284+ /** Attempt to flush the outbox now (e.g. the user tapped "Send now"). */

1285+ fun flushQueued() { container.flushOutbox() }

1286+

1287+ /** Re-send the last draft whose send failed, if any. */

1288+ fun retryFailed() {

1289+ val draft = _failedDraft.value ?: return

1290+ // Reuse the failed send's idempotency key so a retry after a lost response is

1291+ // deduplicated server-side rather than starting a duplicate run.

1292+ val key = failedIdempotencyKey

1293+ // Don't clear _failedDraft until send() accepts the text — if _running is

1294+ // already true, send() returns false and the draft would be lost forever.

1295+ // Attachments aren't re-sent on retry (they were optimistically restored to the

1296+ // composer on the original failure, so they'll ride the next manual send).

1297+ // send() accepts the text synchronously, but its onSuccess/onFailure callbacks run

1298+ // asynchronously. Clearing failedIdempotencyKey here would open a window between this

1299+ // synchronous clear and the async onFailure (which re-stashes the key) during which a

1300+ // manual re-send of the same text gets a fresh UUID — defeating server-side deduplication.

1301+ // Let send()'s own callbacks own the key's lifecycle, as they do for non-retry paths.

1302+ if (send(draft, includeAttachments = false, idempotencyKey = key)) {

1303+ _failedDraft.value = null

1304+ }

1305+ }

1306+

1307+ /** Dismiss a single failed optimistic message by its tempId so it no longer lingers in the

1308+ * list. Without this there's no recovery path for a failed message the user chose to abandon

1309+ * (its text won't ever match a real server message, so reconcileOptimistic never clears it). */

1310+ fun dismissOptimistic(tempId: String) {

1311+ _optimisticMessages.update { entries -> entries.filterNot { it.tempId == tempId } }

1312+ }

1313+

1314+ /** Re-send a specific failed optimistic message by its tempId. Loads its text into the

1315+ * composer and fires a send, mirroring the snackbar's Retry path. Returns false (and is a

1316+ * no-op) if the entry can't be found or a run is already active. */

1317+ fun retryOptimisticMessage(tempId: String): Boolean {

1318+ val entry = _optimisticMessages.value.firstOrNull { it.tempId == tempId && it.failed } ?: return false

1319+ return send(entry.text, includeAttachments = false)

1320+ }

1321+

1322+ /**

1323+ * Queue [text] to be sent automatically when the current run finishes, or clear any

1324+ * queued follow-up when [text] is blank. Used when the user taps Send while a run

1325+ * is already active — the Send button is replaced by Stop during a run, but the

1326+ * input field stays enabled, so a follow-up typed mid-run would otherwise have

1327+ * nowhere to go.

1328+ */

1329+ fun queueFollowUp(text: String) {

1330+ val trimmed = text.trim()

1331+ setQueuedFollowUp(trimmed.takeIf { it.isNotEmpty() })

1332+ // The text now lives in the queued chip, so clear the input field just as a

1333+ // normal send would. No-op for the cancel case (blank text), which must leave

1334+ // whatever the user has since typed untouched.

1335+ if (trimmed.isNotEmpty()) {

1336+ _draft.value = ""

1337+ // Persist the cleared draft IMMEDIATELY, not just in memory: the follow-up was already

1338+ // persisted synchronously above, so if the process is killed before the debounced

1339+ // draft-persist fires, the same text would remain under BOTH the draft and follow-up

1340+ // keys — and cold-start recovery would restore it to the composer AND re-queue it (a

1341+ // duplicate). Mirror send()'s lastPersistedDraft update so the drafts observer treats

1342+ // this store change as our own echo and doesn't write the cleared value back.

1343+ lastPersistedDraft = ""

1344+ container.draftStore.flushDraft(sessionId, "")

1345+ }

1346+ }

1347+

1348+ /** Set or clear the queued follow-up and mirror it to persistence, so a follow-up

1349+ * queued mid-run survives process death (recovered on the next open of this session).

1350+ * Passing null / blank clears both the in-memory value and the persisted copy. */

1351+ private fun setQueuedFollowUp(text: String?) {

1352+ _queuedFollowUp.value = text

1353+ container.draftStore.flushFollowUp(sessionId, text.orEmpty())

1354+ }

1355+

1356+ /** Transient flag set by [refreshMessages] so the top-bar refresh icon can show

1357+ * a brief spinner as immediate tap feedback. The SSE reconnect triggered by

1358+ * refreshMessages may not visibly change [connectionState] (it's already

1359+ * Connected), so without this the tap appears to do nothing. Clears after a

1360+ * short delay or when the connection state next becomes Connected. */

1361+ private val _refreshing = MutableStateFlow(false)

1362+ val refreshing: StateFlow<Boolean> = _refreshing.asStateFlow()

1363+

1364+ /** Manually re-fetch messages by forcing the SSE stream to reconnect, which

1365+ * triggers the repository's re-seed-from-REST logic. Gives the user a recovery

1366+ * path when the SSE stream silently drops and the auto-reconnect re-seed is slow

1367+ * or fails — a pull-to-refresh or top-bar refresh forces a fresh fetch under the

1368+ * existing generation-guarded merge. Also clears [loadError] optimistically and

1369+ * sets [refreshing] for immediate tap feedback. */

1370+ fun refreshMessages() {

1371+ val conn = connection ?: return

1372+ _loadError.value = false

1373+ _loadErrorInline.value = false

1374+ _refreshing.value = true

1375+ conn.events.triggerReconnect()

1376+ viewModelScope.launch {

1377+ delay(NetworkConfig.refreshFeedbackMs)

1378+ _refreshing.value = false

1379+ }

1380+ }

1381+

1382+ /** Invoke a slash-command by name via the server's /command endpoint. */

1383+ fun runCommand(command: Command) {

1384+ val conn = connection ?: return

1385+ // A run is already in flight — surface feedback instead of silently dropping the

1386+ // command (the picker stays openable during a run and dismisses on select).

1387+ if (!beginRun()) {

1388+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1389+ return

1390+ }

1391+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1392+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1393+ runEndedByIdle = false

1394+ viewModelScope.launch {

1395+ runCatchingCancellable {

1396+ conn.repository.runCommand(sessionId, command.name, agent = command.agent)

1397+ }.onFailure {

1398+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1399+ _running.value = false

1400+ }

1401+ }

1402+ }

1403+

1404+ fun abort() {

1405+ val conn = connection ?: return

1406+ // Drop any queued follow-up so the SessionIdle that follows the abort doesn't

1407+ // auto-send it — the user tapped Stop to halt work, not to trigger the next turn.

1408+ setQueuedFollowUp(null)

1409+ if (!_aborting.compareAndSet(false, true)) return

1410+ viewModelScope.launch {

1411+ try {

1412+ // Run the abort POST under NonCancellable so it survives this scope being

1413+ // cancelled. The "Stop and exit" path calls abort() then navigates back

1414+ // immediately, which pops this ViewModel's back-stack entry → onCleared() →

1415+ // viewModelScope.cancel(); without this the in-flight abort is cancelled (often

1416+ // before the request even reaches the server) and the run keeps burning tokens

1417+ // server-side despite the user explicitly stopping it.

1418+ runCatchingCancellable { withContext(NonCancellable) { conn.repository.abort(sessionId) } }

1419+ .onSuccess {

1420+ _running.value = false

1421+ // Close the re-light gate so trailing SSE events in flight between the

1422+ // abort POST's ack and the server's SessionIdle don't re-light the run

1423+ // indicator (and re-arm the FGS / keepScreenOn) after the user hit Stop.

1424+ // send()/runCommand()/continueRun() all open this gate on beginRun();

1425+ // abort() is the one run-ending path that previously missed it.

1426+ runEndedByIdle = true

1427+ // Surface an undo opportunity so an accidental Stop is recoverable.

1428+ // The UI shows a "Stopped — Undo" snackbar; tapping Undo re-sends the

1429+ // last prompt. Only when there's a tracked prompt to undo back to.

1430+ val prompt = lastSentPrompt

1431+ if (prompt != null) _stopUndoEvents.trySend(prompt)

1432+ }

1433+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1434+ } finally {

1435+ _aborting.value = false

1436+ }

1437+ }

1438+ }

1439+

1440+ /** Re-send the most recently-sent user prompt, used by the Stop-undo snackbar so an

1441+ * accidental Stop can be recovered. No-op if no prompt is tracked (e.g. the run was

1442+ * started by a command, not a text prompt). Clears the tracked prompt so a second Undo

1443+ * tap doesn't double-send. */

1444+ fun resendLastPrompt() {

1445+ val prompt = lastSentPrompt ?: return

1446+ lastSentPrompt = null

1447+ send(prompt, includeAttachments = false)

1448+ }

1449+

1450+ fun addAttachment(attachment: PendingAttachment) {

1451+ // Enforce the cumulative size cap across the whole staged set (the per-file size and the

1452+ // count caps are checked upstream). The base64 data URLs are held in memory and

1453+ // re-serialized on every add/remove and again when the request body is built, so an

1454+ // unbounded set OOMs. Reject rather than add, mirroring the other attachment limits'

1455+ // snackbar via errorEvents. Size is the raw (pre-base64) byte count, matching the

1456+ // per-file check, and includes attachments already staged (incl. restored ones).

1457+ val staged = _attachments.value.sumOf { base64DataUrlByteSize(it.part.url) }

1458+ if (staged + base64DataUrlByteSize(attachment.part.url) > NetworkConfig.maxTotalAttachmentBytes) {

1459+ _errorEvents.trySend(ChatError(container.string(R.string.attachment_limit)))

1460+ return

1461+ }

1462+ _attachments.update { it + attachment }

1463+ persistAttachments()

1464+ }

1465+

1466+ fun removeAttachment(id: String) {

1467+ _attachments.update { list -> list.filterNot { it.id == id } }

1468+ persistAttachments()

1469+ }

1470+

1471+ fun clearAttachments() {

1472+ _attachments.value = emptyList()

1473+ persistAttachments()

1474+ }

1475+

1476+ /** Convert each picked Uri to a base64 attachment off the main thread, honoring the

1477+ * per-prompt count cap and surfacing per-file errors via [errorEvents] without aborting

1478+ * the batch. Runs on [viewModelScope] (which survives configuration changes) so an

1479+ * in-flight encode isn't cancelled and its progress counters ([stagingCount] /

1480+ * [stagingFileTotal]) aren't reset to 0 on rotation — the prior UI-side

1481+ * `rememberCoroutineScope` implementation lost both the work and the counters on

1482+ * every config change. */

1483+ fun stageUris(uris: List<android.net.Uri>, context: android.content.Context) {

1484+ if (uris.isEmpty()) return

1485+ val appContext = context.applicationContext

1486+ viewModelScope.launch {

1487+ _stagingCount.value++

1488+ _stagingFileTotal.value += uris.size

1489+ try {

1490+ uris.forEachIndexed { index, uri ->

1491+ if (_attachments.value.size >= NetworkConfig.maxAttachments) {

1492+ _errorEvents.trySend(ChatError(container.string(R.string.attachment_limit)))

1493+ // The cap dropped the rest of this batch; account for the files we

1494+ // won't process so stagingFileTotal doesn't linger over-counted,

1495+ // then abandon the batch. return@launch (not return@forEachIndexed)

1496+ // so the remaining uris aren't re-checked against a never-relieved

1497+ // cap (which would over-decrement the counter and re-fire the

1498+ // snackbar once per leftover uri). The `finally` below still

1499+ // decrements stagingCount.

1500+ _stagingFileTotal.value -= uris.size - index

1501+ return@launch

1502+ }

1503+ when (val result = uri.toAttachmentResult(appContext)) {

1504+ is AttachmentResult.Ok -> addAttachment(result.attachment)

1505+ AttachmentResult.TooLarge -> _errorEvents.trySend(ChatError(container.string(R.string.attachment_too_large)))

1506+ AttachmentResult.Failed -> _errorEvents.trySend(ChatError(container.string(R.string.attachment_failed)))

1507+ }

1508+ _stagingFileTotal.value--

1509+ }

1510+ } finally {

1511+ _stagingCount.value--

1512+ }

1513+ }

1514+ }

1515+

1516+ /** Persist the current staged attachments so an interrupted compose survives process

1517+ * death (mirrors draft persistence). Fire-and-forget on [viewModelScope]. */

1518+ private fun persistAttachments() {

1519+ val snapshot = _attachments.value

1520+ viewModelScope.launch {

1521+ runCatchingCancellable { container.attachmentDraftStore.save(sessionId, snapshot.map { it.toPersisted() }) }

1522+ .onFailure { Log.w("ChatViewModel", "Failed to persist attachments", it) }

1523+ }

1524+ }

1525+

1526+ /** Revert the conversation to just before [messageId], hiding everything after it. The

1527+ * authoritative state also arrives via SessionUpdated; we flag it here for immediate

1528+ * feedback. */

1529+ fun revertTo(messageId: String) {

1530+ val conn = connection ?: return

1531+ viewModelScope.launch {

1532+ runCatchingCancellable { conn.api.revert(sessionId, messageId) }

1533+ .onSuccess {

1534+ _reverted.value = it.isReverted

1535+ _revertDiff.value = it.revert?.diff?.takeIf { diff -> diff.isNotBlank() }

1536+ _editing.value = false

1537+ }

1538+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1539+ }

1540+ }

1541+

1542+ /**

1543+ * Regenerate an assistant reply: revert the conversation to that assistant message (removing

1544+ * it and everything after), then re-send the user prompt that immediately preceded it. A

1545+ * one-tap "try again" mirroring ChatGPT/Claude, instead of the two-step revert + re-Send.

1546+ *

1547+ * Captures the preceding user text *before* the revert (the messages list updates

1548+ * asynchronously via SSE once the revert lands). No-op if there's no preceding user prompt

1549+ * or the assistant message isn't found.

1550+ */

1551+ fun regenerate(assistantMessageId: String) {

1552+ val conn = connection ?: return

1553+ val msgs = messages.value

1554+ val idx = msgs.indexOfFirst { it.info.id == assistantMessageId }

1555+ if (idx < 0) return

1556+ val precedingUserText = (idx - 1 downTo 0)

1557+ .asSequence()

1558+ .map { msgs[it] }

1559+ .firstOrNull { it.info is UserMessage }

1560+ ?.parts

1561+ ?.filterIsInstance<TextPart>()

1562+ ?.joinToString("\n\n") { it.text }

1563+ ?.takeIf { it.isNotBlank() }

1564+ ?: return

1565+ viewModelScope.launch {

1566+ runCatchingCancellable { conn.api.revert(sessionId, assistantMessageId) }

1567+ .onSuccess { send(precedingUserText, includeAttachments = false) }

1568+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1569+ }

1570+ }

1571+

1572+ /** Continue a partially-generated assistant reply by sending a "continue" prompt

1573+ * without reverting (unlike [regenerate], which re-runs from the preceding user

1574+ * prompt and loses the partial). The partial reply stays as context so the model

1575+ * can pick up where it left off. This is the standard chat-app "continue" pattern

1576+ * for a reply that was aborted mid-stream. */

1577+ fun continueRun(@Suppress("UNUSED_PARAMETER") assistantMessageId: String) {

1578+ val conn = connection ?: return

1579+ if (running.value || aborting.value) return

1580+ if (!beginRun()) return

1581+ // Reopen the relight gate so this run's streamed parts keep the indicator lit (and a

1582+ // later SessionIdle re-closes it). Without this, runEndedByIdle stays true from the

1583+ // previous run's SessionIdle and the relight guard at the event collector would suppress

1584+ // every streamed part of the continuation, leaving the working indicator / Stop button /

1585+ // foreground service off for the whole run.

1586+ runEndedByIdle = false

1587+ viewModelScope.launch {

1588+ runCatchingCancellable {

1589+ conn.api.sendPrompt(sessionId, text = "continue")

1590+ }.onFailure {

1591+ _running.value = false

1592+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1593+ }

1594+ }

1595+ }

1596+

1597+ /** Load a previously-sent user prompt back into the composer to edit and re-send.

1598+ * Reverts the conversation to just before [messageId] (hiding it and everything after)

1599+ * and prefills the draft with [text]. The next Send continues from that checkpoint,

1600+ * effectively replacing the edited message; the reverted banner's Undo restores it.

1601+ * Overwrites the current draft — this is an explicit edit action on that message. */

1602+ fun editMessage(messageId: String, text: String) {

1603+ val conn = connection ?: return

1604+ _draft.value = text.take(NetworkConfig.maxDraftLengthChars)

1605+ _pendingQuote.value = null

1606+ // Do NOT delegate to revertTo(): revertTo's onSuccess sets _editing = false, which races

1607+ // this synchronous _editing = true (the async revert completes after editMessage returns

1608+ // and clobbers the banner). Inline the revert so editMessage owns the _editing lifecycle:

1609+ // set it true on success, matching the documented contract ("Cleared on unrevert and on

1610+ // send"). revertTo() (the manual revert button) still clears _editing itself.

1611+ viewModelScope.launch {

1612+ runCatchingCancellable { conn.api.revert(sessionId, messageId) }

1613+ .onSuccess {

1614+ _reverted.value = it.isReverted

1615+ _revertDiff.value = it.revert?.diff?.takeIf { diff -> diff.isNotBlank() }

1616+ _editing.value = true

1617+ }

1618+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1619+ }

1620+ }

1621+

1622+ /** Prefill the composer with [text] as a Markdown blockquote so the user can respond to a

1623+ * specific message inline. Appends to any existing draft (with a blank line) rather than

1624+ * overwriting, so quoting doesn't discard text already being typed. Also stashes the raw

1625+ * quoted text in [pendingQuote] so the composer can show a dismissible preview card. */

1626+ fun quoteReply(text: String) {

1627+ val quoted = text.trim().lineSequence().joinToString("\n") { "> $it" }

1628+ if (quoted.isBlank()) return

1629+ val current = _draft.value

1630+ val combined = if (current.isBlank()) "$quoted\n\n" else "$current\n\n$quoted\n\n"

1631+ // Cap like the composer's typed/pasted/dictated input so quoting onto a near-full draft

1632+ // can't push it past the limit (negative remaining counter + an over-cap prompt sent).

1633+ _draft.value = combined.take(NetworkConfig.maxDraftLengthChars)

1634+ _pendingQuote.value = text.trim().takeIf { it.isNotBlank() }

1635+ }

1636+

1637+ /** Remove the pending quote-reply preview and strip the `>`-prefixed blockquote lines from

1638+ * the draft so canceling the quote card actually removes the quoted text, not just the chip.

1639+ * Strips by leading `> ` prefix (structural match) rather than by exact full-text replace,

1640+ * so a user who edited any quoted line is still cleaned up — the exact-text replaces would

1641+ * silently no-op on an edit, leaving orphan `>` lines in the draft after the chip vanished. */

1642+ fun cancelQuoteReply() {

1643+ val removed = _pendingQuote.value ?: return

1644+ _pendingQuote.value = null

1645+ val quoteLineCount = removed.trim().lineSequence().count()

1646+ // Walk the draft and drop the first contiguous run of `> `-prefixed lines that matches

1647+ // the stashed quote's line count (the block quoteReply inserted). Lines the user edited

1648+ // still begin with `> ` (quoteReply prefixed every line), so a prefix match finds them

1649+ // even when their trailing content diverges from the stashed original.

1650+ val lines = _draft.value.split("\n").toMutableList()

1651+ var runStart = -1

1652+ var runLen = 0

1653+ var i = 0

1654+ while (i < lines.size) {

1655+ if (lines[i].startsWith("> ") || lines[i] == ">") {

1656+ if (runStart < 0) runStart = i

1657+ runLen++

1658+ if (runLen == quoteLineCount) {

1659+ // Strip the run plus a single trailing blank line that separated the quote

1660+ // from the reply (quoteReply appends "\n\n" after the block).

1661+ val stripUntil = i + 1

1662+ if (stripUntil < lines.size && lines[stripUntil].isEmpty()) {

1663+ lines.subList(runStart, stripUntil + 1).clear()

1664+ } else {

1665+ lines.subList(runStart, stripUntil).clear()

1666+ }

1667+ break

1668+ }

1669+ i++

1670+ } else {

1671+ runStart = -1

1672+ runLen = 0

1673+ i++

1674+ }

1675+ }

1676+ _draft.value = lines.joinToString("\n").trimStart()

1677+ }

1678+

1679+ /** Fork the conversation by creating a brand-new session seeded with [text] as its first

1680+ * prompt (using the currently-selected model/agent). Emits the new session id via

1681+ * [branchEvents] so the UI can navigate to it. There's no server-side "branch" endpoint,

1682+ * so this starts a fresh session from the chosen prompt rather than copying history. */

1683+ fun branchFrom(text: String) {

1684+ val conn = connection ?: return

1685+ val prompt = text.trim()

1686+ if (prompt.isEmpty()) return

1687+ viewModelScope.launch {

1688+ var createdId: String? = null

1689+ runCatchingCancellable {

1690+ val session = conn.repository.createSession(title = null)

1691+ createdId = session.id

1692+ conn.repository.sendPrompt(

1693+ session.id,

1694+ prompt,

1695+ model = _selectedModel.value?.ref,

1696+ agent = _selectedAgent.value,

1697+ )

1698+ session.id

1699+ }

1700+ .onSuccess { newId -> _branchEvents.trySend(newId) }

1701+ .onFailure {

1702+ // If the session was created but the prompt failed, delete the orphaned

1703+ // empty session so failed branches don't accumulate on the server.

1704+ val id = createdId

1705+ if (id != null) {

1706+ runCatchingCancellable { conn.repository.deleteSession(id) }

1707+ }

1708+ _errorEvents.trySend(ChatError(container.string(R.string.branch_failed)))

1709+ }

1710+ }

1711+ }

1712+

1713+ /** Undo the active revert checkpoint, restoring the hidden messages. */

1714+ fun unrevert() {

1715+ val conn = connection ?: return

1716+ viewModelScope.launch {

1717+ runCatchingCancellable { conn.api.unrevert(sessionId) }

1718+ .onSuccess {

1719+ _reverted.value = it.isReverted

1720+ _revertDiff.value = it.revert?.diff?.takeIf { diff -> diff.isNotBlank() }

1721+ _editing.value = false

1722+ }

1723+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1724+ }

1725+ }

1726+

1727+ /** Create (or fetch the existing) public share link. The URL is exposed via [shareUrl]

1728+ * and also emitted once via [shareLinkEvents] so the UI can copy it to the clipboard. */

1729+ fun shareSession() {

1730+ val conn = connection ?: return

1731+ viewModelScope.launch {

1732+ runCatchingCancellable { conn.api.shareSession(sessionId) }

1733+ .onSuccess { session ->

1734+ val url = session.share?.url?.takeIf { it.isNotBlank() }

1735+ _shareUrl.value = url

1736+ if (url != null) _shareLinkEvents.trySend(url)

1737+ }

1738+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1739+ }

1740+ }

1741+

1742+ /** Revoke the session's public share link. */

1743+ fun unshareSession() {

1744+ val conn = connection ?: return

1745+ viewModelScope.launch {

1746+ runCatchingCancellable { conn.api.unshareSession(sessionId) }

1747+ .onSuccess { _shareUrl.value = it.share?.url?.takeIf { it.isNotBlank() } }

1748+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1749+ }

1750+ }

1751+

1752+ /** Compact the conversation via the summarize endpoint; the summary streams back via SSE.

1753+ * Uses the currently-selected model (required by the endpoint). */

1754+ fun summarize() {

1755+ val conn = connection ?: return

1756+ val model = _selectedModel.value?.ref ?: run {

1757+ _errorEvents.trySend(ChatError(container.string(R.string.needs_model)))

1758+ return

1759+ }

1760+ if (!beginRun()) {

1761+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1762+ return

1763+ }

1764+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1765+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1766+ runEndedByIdle = false

1767+ viewModelScope.launch {

1768+ runCatchingCancellable { conn.api.summarize(sessionId, model) }

1769+ .onFailure {

1770+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1771+ _running.value = false

1772+ }

1773+ }

1774+ }

1775+

1776+ /** Analyze the project and (re)generate its AGENTS.md; the run streams back via SSE. */

1777+ fun initProject() {

1778+ val conn = connection ?: return

1779+ if (!beginRun()) {

1780+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1781+ return

1782+ }

1783+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1784+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1785+ runEndedByIdle = false

1786+ viewModelScope.launch {

1787+ runCatchingCancellable { conn.api.initSession(sessionId) }

1788+ .onFailure {

1789+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1790+ _running.value = false

1791+ }

1792+ }

1793+ }

1794+

1795+ /** Run a one-off shell [command] in the session's worktree; output streams back via SSE.

1796+ * The server requires an agent to scope the run — use the selected one, else the primary. */

1797+ fun runShell(command: String) {

1798+ val conn = connection ?: return

1799+ val cmd = command.trim()

1800+ if (cmd.isEmpty()) return

1801+ val agent = _selectedAgent.value

1802+ ?: _agents.value.firstOrNull { it.isPrimary }?.name

1803+ ?: _agents.value.firstOrNull()?.name

1804+ ?: DEFAULT_SHELL_AGENT

1805+ if (!beginRun()) {

1806+ _errorEvents.trySend(ChatError(container.string(R.string.command_busy)))

1807+ return

1808+ }

1809+ // A new run is starting: reopen the re-light gate (as send() does) so a mid-run SSE

1810+ // reconnect keeps the working indicator lit instead of leaving it stuck off.

1811+ runEndedByIdle = false

1812+ viewModelScope.launch {

1813+ runCatchingCancellable { conn.api.shell(sessionId, cmd, agent, _selectedModel.value?.ref) }

1814+ .onFailure {

1815+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1816+ _running.value = false

1817+ }

1818+ }

1819+ }

1820+

1821+ /** Rename the current session via PATCH /session/:id. On success updates [sessionTitle]

1822+ * so the top bar reflects the new name immediately. A failure surfaces as a snackbar;

1823+ * the caller keeps the dialog open so the user can retry without retyping. */

1824+ fun renameSession(newTitle: String) {

1825+ val conn = connection ?: return

1826+ val title = newTitle.trim()

1827+ if (title.isEmpty() || title == _sessionTitle.value) return

1828+ viewModelScope.launch {

1829+ runCatchingCancellable { conn.api.updateSession(sessionId, title) }

1830+ .onSuccess { _sessionTitle.value = it.displayTitle }

1831+ .onFailure { _errorEvents.trySend(ChatError(container.friendlyError(it))) }

1832+ }

1833+ }

1834+

1835+ /** Delete the current session via DELETE /session/:id. Schedules a deferred delete with an

1836+ * undo window and signals [deleteUndoEvents] so the ChatScreen shows an Undo snackbar

1837+ * *over the conversation the user is viewing* — they can cancel without first being

1838+ * navigated back to the session list. The actual REST delete runs after

1839+ * [NetworkConfig.undoDeleteDelayMs]; cancel via [cancelSessionDelete]. If the window

1840+ * expires, the scheduled delete's onDeleted sets [sessionDeleted] so the UI navigates away.

1841+ * A failure surfaces as a snackbar. */

1842+ fun deleteSession() {

1843+ val conn = connection ?: return

1844+ container.scheduleSessionDelete(

1845+ id = sessionId,

1846+ delayMs = NetworkConfig.undoDeleteDelayMs,

1847+ // Navigate away only once the deferred delete actually commits — so an in-place Undo

1848+ // before the window expires keeps the user on this conversation.

1849+ onDeleted = { _sessionDeleted.value = true },

1850+ onError = { _errorEvents.trySend(ChatError(container.friendlyError(it))) },

1851+ )

1852+ _deleteUndoEvents.tryEmit(sessionId)

1853+ }

1854+

1855+ /** Cancel a delete scheduled by [deleteSession] (the in-chat Undo action). Returns true if the

1856+ * delete was still pending (Undo succeeded). */

1857+ fun cancelSessionDelete(): Boolean = container.cancelSessionDelete(sessionId)

1858+

1859+ /** Cancel a delete scheduled for [id] — the `collectLatest` undo path in ChatScreen calls

1860+ * this with the tracked `pending` id when a newer delete supersedes an in-flight one, so

1861+ * the prior session's deferred REST delete is withdrawn (no-op if it already fired)

1862+ * instead of being left to fire with no reachable Undo button. Mirrors

1863+ * [soy.iko.opencode.ui.session.SessionListViewModel.undoDelete]. Returns false when [id]

1864+ * isn't this VM's session (defensive — a ChatScreen only ever deletes its own session). */

1865+ fun cancelSessionDelete(id: String): Boolean {

1866+ if (id != sessionId) return false

1867+ return container.cancelSessionDelete(id)

1868+ }

1869+

1870+ /** Reconnect to the most recently used server profile (used when the connection is gone). */

1871+ fun reconnect() {

1872+ if (container.activeConnection.value != null) return

1873+ // Guard against concurrent reconnect calls: the user can tap the button

1874+ // multiple times while _reconnecting is true, which would launch parallel

1875+ // connect() coroutines that race to set the active connection, leaking the

1876+ // intermediate connections.

1877+ if (!_reconnecting.compareAndSet(false, true)) return

1878+ viewModelScope.launch {

1879+ try {

1880+ val recent = runCatchingCancellable { container.profileStore.profiles.first() }

1881+ .getOrDefault(emptyList())

1882+ .firstOrNull()

1883+ if (recent == null) {

1884+ _errorEvents.trySend(ChatError(container.string(R.string.no_servers_to_reconnect)))

1885+ return@launch

1886+ }

1887+ runCatchingCancellable {

1888+ val conn = container.connect(recent)

1889+ conn.api.ping()

1890+ }.onFailure {

1891+ container.disconnect()

1892+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1893+ }

1894+ } finally {

1895+ _reconnecting.value = false

1896+ }

1897+ }

1898+ }

1899+

1900+ fun respondPermission(permission: Permission, response: PermissionResponse) {

1901+ val conn = connection ?: return

1902+ // Record a session-scoped grant so subsequent matching requests are auto-answered.

1903+ // SESSION maps to ONCE on the wire (the server has no session-scope concept); the

1904+ // client-side set is what gives it the "for this session" semantics.

1905+ if (response == PermissionResponse.SESSION) {

1906+ val type = permission.type.orEmpty()

1907+ val pattern = permission.patternText.orEmpty()

1908+ if (type.isNotEmpty()) sessionAllowed.add(type to pattern)

1909+ }

1910+ // Dismiss optimistically (revealing any queued request); permission.replied will confirm.

1911+ // If the call fails we re-surface this request so the user can retry instead of being stuck

1912+ // with a dismissed dialog and a tool run that's still paused server-side.

1913+ resolvePermission(permission.id)

1914+ viewModelScope.launch {

1915+ runCatchingCancellable { conn.api.respondPermission(sessionId, permission.id, response) }

1916+ .onFailure {

1917+ _errorEvents.trySend(ChatError(container.friendlyError(it)))

1918+ // Revoke the session-scoped grant on failure: enqueuePermission() auto-responds

1919+ // when (type, pattern) is in sessionAllowed, so leaving the entry in would loop

1920+ // respondPermission -> fail -> enqueuePermission -> respondPermission ... forever,

1921+ // spamming the dead server and the error snackbar without ever re-prompting the

1922+ // user. Removing it makes enqueuePermission fall through to re-queueing the

1923+ // request for the dialog so the user can retry.

1924+ //

1925+ // This must cover BOTH the SESSION and ONCE response paths: enqueuePermission's

1926+ // auto-respond sends ONCE, not SESSION, so guarding only the SESSION branch (as

1927+ // the original code did) leaves the entry in and still loops when the auto-reply

1928+ // fails. Revoke unconditionally on any failure.

1929+ val type = permission.type.orEmpty()

1930+ val pattern = permission.patternText.orEmpty()

1931+ if (type.isNotEmpty()) sessionAllowed.remove(type to pattern)

1932+ enqueuePermission(permission)

1933+ }

1934+ }

1935+ }

1936+

1937+ private companion object {

1938+ /** Fallback agent for the shell endpoint when none is selected and no agent catalog

1939+ * loaded. opencode's default primary agent is "build". */

1940+ const val DEFAULT_SHELL_AGENT = "build"

1941+ }

1942+

1943+ override fun onCleared() {

1944+ super.onCleared()

1945+ // Flush any pending debounced draft so it survives navigation. Uses an

1946+ // asynchronous apply() (not a synchronous commit) so the main thread isn't

1947+ // blocked on disk I/O — Android's SharedPreferences framework guarantees

1948+ // pending apply() writes are flushed before the process exits.

1949+ // Flush the pending draft — including an empty one. Persistence is otherwise debounced,

1950+ // so if the user cleared the input and navigated back within the debounce window, the

1951+ // debounce coroutine was cancelled with viewModelScope and the prefs still hold the

1952+ // previous non-empty draft. flushDraft() removes the key when the text is blank, so

1953+ // flushing commits the clear instead of resurrecting the deleted text.

1954+ //

1955+ // BUT respect the send-in-flight guard: send() optimistically clears _draft to "" WITHOUT

1956+ // persisting the clear so a failed send can restore the text. If the user taps Send then

1957+ // immediately navigates back (cancelling the in-flight send), flushing the blank _draft here

1958+ // would remove the persisted key and erase the pre-send draft with no recovery. Skip the

1959+ // flush while a send is in flight so the pre-send draft stays persisted (recoverable).

1960+ if (!suppressDraftPersist.get()) container.draftStore.flushDraft(sessionId, _draft.value)

1961+ }

1962+}

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/components/MessageBubble.ktdeleted−479

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