@@ -1,1654 +0,0 @@
1−package soy.iko.opencode.ui.chat
3−import android.app.Activity
4−import android.content.Intent
6−import android.speech.RecognizerIntent
7−import androidx.activity.compose.BackHandler
8−import androidx.activity.compose.rememberLauncherForActivityResult
9−import androidx.activity.result.PickVisualMediaRequest
10−import androidx.activity.result.contract.ActivityResultContracts
11−import androidx.compose.animation.AnimatedVisibility
12−import androidx.compose.foundation.clickable
13−import androidx.compose.foundation.layout.Arrangement
14−import androidx.compose.foundation.layout.Box
15−import androidx.compose.foundation.layout.Column
16−import androidx.compose.foundation.layout.FlowRow
17−import androidx.compose.foundation.layout.PaddingValues
18−import androidx.compose.foundation.layout.Row
19−import androidx.compose.foundation.layout.Spacer
20−import androidx.compose.foundation.layout.WindowInsets
21−import androidx.compose.foundation.layout.fillMaxSize
22−import androidx.compose.foundation.layout.fillMaxWidth
23−import androidx.compose.foundation.layout.imePadding
24−import androidx.compose.foundation.layout.navigationBars
25−import androidx.compose.foundation.layout.padding
26−import androidx.compose.foundation.layout.size
27−import androidx.compose.foundation.layout.union
28−import androidx.compose.foundation.layout.windowInsetsPadding
29−import androidx.compose.foundation.lazy.LazyColumn
30−import androidx.compose.foundation.lazy.items
31−import androidx.compose.foundation.lazy.rememberLazyListState
32−import androidx.compose.material.icons.Icons
33−import androidx.compose.material.icons.automirrored.filled.ArrowBack
34−import androidx.compose.material.icons.automirrored.filled.Send
35−import androidx.compose.material.icons.filled.Add
36−import androidx.compose.material.icons.filled.AutoAwesome
37−import androidx.compose.material.icons.filled.Delete
38−import androidx.compose.material.icons.filled.Description
39−import androidx.compose.material.icons.filled.Edit
40−import androidx.compose.material.icons.filled.KeyboardArrowDown
41−import androidx.compose.material.icons.filled.Mic
42−import androidx.compose.material.icons.filled.MoreVert
43−import androidx.compose.material.icons.filled.PhotoCamera
44−import androidx.compose.material.icons.filled.PhotoLibrary
45−import androidx.compose.material.icons.filled.Refresh
46−import androidx.compose.material.icons.filled.Restore
47−import androidx.compose.material.icons.filled.Stop
48−import androidx.compose.material3.AlertDialog
49−import androidx.compose.material3.Button
50−import androidx.compose.material3.CircularProgressIndicator
51−import androidx.compose.material3.DropdownMenu
52−import androidx.compose.material3.DropdownMenuItem
53−import androidx.compose.material3.ExperimentalMaterial3Api
54−import androidx.compose.material3.ExtendedFloatingActionButton
55−import androidx.compose.material3.FloatingActionButton
56−import androidx.compose.material3.Icon
57−import androidx.compose.material3.IconButton
58−import androidx.compose.material3.MaterialTheme
59−import androidx.compose.material3.OutlinedTextField
60−import androidx.compose.material3.Scaffold
61−import androidx.compose.material3.SnackbarHost
62−import androidx.compose.material3.SnackbarHostState
63−import androidx.compose.material3.Surface
64−import androidx.compose.material3.Text
65−import androidx.compose.material3.TextButton
66−import androidx.compose.material3.TopAppBar
67−import androidx.compose.material3.pulltorefresh.PullToRefreshBox
68−import androidx.compose.runtime.Composable
69−import androidx.compose.runtime.CompositionLocalProvider
70−import androidx.compose.runtime.DisposableEffect
71−import androidx.compose.runtime.LaunchedEffect
72−import androidx.compose.runtime.derivedStateOf
73−import androidx.compose.runtime.getValue
74−import androidx.compose.runtime.mutableStateOf
75−import androidx.compose.runtime.remember
76−import androidx.compose.runtime.rememberCoroutineScope
77−import androidx.compose.runtime.rememberUpdatedState
78−import androidx.compose.runtime.saveable.rememberSaveable
79−import androidx.compose.runtime.setValue
80−import androidx.compose.runtime.snapshotFlow
81−import androidx.compose.foundation.text.KeyboardActions
82−import androidx.compose.foundation.text.KeyboardOptions
83−import androidx.compose.ui.text.input.KeyboardCapitalization
84−import androidx.compose.ui.Alignment
85−import androidx.compose.ui.Modifier
86−import androidx.compose.ui.focus.focusRequester
87−import androidx.compose.ui.input.key.Key
88−import androidx.compose.ui.input.key.KeyEventType
89−import androidx.compose.ui.input.key.isCtrlPressed
90−import androidx.compose.ui.input.key.isShiftPressed
91−import androidx.compose.ui.input.key.key
92−import androidx.compose.ui.input.key.onPreviewKeyEvent
93−import androidx.compose.ui.input.key.type
94−import androidx.compose.ui.platform.LocalContext
95−import androidx.compose.ui.platform.LocalHapticFeedback
96−import androidx.compose.ui.platform.LocalView
97−import androidx.compose.ui.platform.testTag
98−import androidx.compose.ui.res.stringResource
99−import androidx.compose.ui.semantics.Role
100−import androidx.compose.ui.semantics.contentDescription
101−import androidx.compose.ui.semantics.semantics
102−import androidx.compose.ui.text.input.ImeAction
103−import androidx.compose.ui.text.style.TextOverflow
104−import androidx.compose.ui.unit.dp
105−import androidx.lifecycle.compose.collectAsStateWithLifecycle
106−import androidx.lifecycle.viewmodel.compose.viewModel
107−import kotlinx.coroutines.Dispatchers
108−import kotlinx.coroutines.launch
109−import kotlinx.coroutines.withContext
110−import soy.iko.opencode.data.model.Part
111−import soy.iko.opencode.data.model.MessageWithParts
112−import soy.iko.opencode.data.model.ReasoningPart
113−import soy.iko.opencode.data.model.TextPart
114−import soy.iko.opencode.data.model.ToolCompleted
115−import soy.iko.opencode.data.model.ToolError
116−import soy.iko.opencode.data.model.ToolPart
117−import soy.iko.opencode.data.model.ToolRunning
118−import soy.iko.opencode.data.network.EventStreamClient
119−import soy.iko.opencode.data.network.NetworkConfig
120−import soy.iko.opencode.di.AppContainer
121−import soy.iko.opencode.R
122−import soy.iko.opencode.ui.components.CommandPalette
123−import soy.iko.opencode.ui.components.ConnectionBanner
124−import soy.iko.opencode.ui.components.PaletteAction
125−import soy.iko.opencode.ui.components.copyToClipboard
126−import soy.iko.opencode.ui.components.LocalRelativeTimeTick
127−import soy.iko.opencode.ui.components.rememberRelativeTimeTick
128−import soy.iko.opencode.ui.components.showToast
129−import soy.iko.opencode.ui.components.toImageContext
130−import soy.iko.opencode.ui.vmFactory
131−import soy.iko.opencode.util.runCatchingCancellable
133−@OptIn(ExperimentalMaterial3Api::class)
136− container: AppContainer,
139− onOpenFile: ((String) -> Unit)? = null,
140− onOpenSession: ((String) -> Unit)? = null,
142− val vm: ChatViewModel = viewModel(key = sessionId, factory = vmFactory { ChatViewModel(container, sessionId) })
143− val hasMessages by vm.hasMessages.collectAsStateWithLifecycle()
144− val running by vm.running.collectAsStateWithLifecycle()
145− val aborting by vm.aborting.collectAsStateWithLifecycle()
146− val loading by vm.loading.collectAsStateWithLifecycle()
147− val loadError by vm.loadError.collectAsStateWithLifecycle()
148− val refreshing by vm.refreshing.collectAsStateWithLifecycle()
149− val models by vm.models.collectAsStateWithLifecycle()
150− val modelsLoading by vm.modelsLoading.collectAsStateWithLifecycle()
151− val modelsError by vm.modelsError.collectAsStateWithLifecycle()
152− val selectedModel by vm.selectedModel.collectAsStateWithLifecycle()
153− val connectionState by vm.connectionState.collectAsStateWithLifecycle()
154− val pendingPermission by vm.pendingPermission.collectAsStateWithLifecycle()
155− val agents by vm.agents.collectAsStateWithLifecycle()
156− val agentsLoading by vm.agentsLoading.collectAsStateWithLifecycle()
157− val agentsError by vm.agentsError.collectAsStateWithLifecycle()
158− val selectedAgent by vm.selectedAgent.collectAsStateWithLifecycle()
159− val commands by vm.commands.collectAsStateWithLifecycle()
160− val commandsLoading by vm.commandsLoading.collectAsStateWithLifecycle()
161− val commandsError by vm.commandsError.collectAsStateWithLifecycle()
162− val sessionTitle by vm.sessionTitle.collectAsStateWithLifecycle()
163− val sessionDeleted by vm.sessionDeleted.collectAsStateWithLifecycle()
164− val draft by vm.draft.collectAsStateWithLifecycle()
165− val attachments by vm.attachments.collectAsStateWithLifecycle()
166− val reverted by vm.reverted.collectAsStateWithLifecycle()
167− val shareUrl by vm.shareUrl.collectAsStateWithLifecycle()
168− val reconnecting by vm.reconnecting.collectAsStateWithLifecycle()
169− val sendOnEnter by container.settingsStore.sendOnEnter.collectAsStateWithLifecycle(initialValue = true)
170− val isOnline by container.isOnline.collectAsStateWithLifecycle()
171− val haptics = LocalHapticFeedback.current
172− val scope = rememberCoroutineScope()
173− val shareContext = LocalContext.current
174− val defaultShareSubject = stringResource(R.string.share_subject)
175− val sessionLabel = stringResource(R.string.session)
176− val defaultModelLabel = stringResource(R.string.default_model)
177− val subtitle = remember(selectedModel?.modelLabel, selectedAgent, defaultModelLabel) {
179− append(selectedModel?.modelLabel ?: defaultModelLabel)
180− selectedAgent?.let { append(" · $it") }
184− // Connection profile (with auth) for rendering inline image attachments.
185− // Collect as state so a server switch recomposes the image context.
186− val activeConnection by container.activeConnection.collectAsStateWithLifecycle()
187− val imageContext = remember(activeConnection?.profile) {
188− activeConnection?.profile?.toImageContext()
191− // Mark this session as read while the user is viewing it; clear on leave so new
192− // background activity can badge it again.
193− DisposableEffect(sessionId) {
194− container.setCurrentSession(sessionId)
195− onDispose { if (container.currentSession.value == sessionId) container.setCurrentSession(null) }
198− // Navigate away when the session is deleted via SSE so the user isn't left
199− // on a zombie screen showing a conversation that no longer exists. Surface a
200− // toast (not a snackbar) because the screen is about to be popped — a snackbar
201− // would be torn down before the user could read it, while a toast survives.
202− // Covers both SSE-driven deletion (deleted on another device) and a user-
203− // initiated delete from the chat overflow menu (deleteSession in ChatViewModel
204− // sets the same flag on success).
205− val deletedContext = LocalContext.current
206− LaunchedEffect(sessionDeleted) {
207− if (sessionDeleted) {
208− showToast(deletedContext, deletedContext.getString(R.string.session_deleted_chat))
213− val snackbar = remember { SnackbarHostState() }
214− val retryLabel = stringResource(R.string.retry)
215− val inputFocusRequester = remember { androidx.compose.ui.focus.FocusRequester() }
216− var showModelPicker by rememberSaveable { mutableStateOf(false) }
217− var showAgentPicker by rememberSaveable { mutableStateOf(false) }
218− var showCommandPicker by rememberSaveable { mutableStateOf(false) }
219− var showExitConfirm by rememberSaveable { mutableStateOf(false) }
220− var showStopConfirm by rememberSaveable { mutableStateOf(false) }
221− var showOverflowMenu by rememberSaveable { mutableStateOf(false) }
222− var showRenameDialog by rememberSaveable { mutableStateOf(false) }
223− var showDeleteDialog by rememberSaveable { mutableStateOf(false) }
224− var showShellDialog by rememberSaveable { mutableStateOf(false) }
225− var showPalette by rememberSaveable { mutableStateOf(false) }
227− // Command-palette entries (keyboard-first: Ctrl+K). Labels resolved here so the remembered
228− // action list doesn't need a Composable context. Actions map to the same handlers the
229− // overflow menu drives, so the palette is a keyboard shortcut to them, not a parallel path.
230− val paletteModelLabel = stringResource(R.string.palette_switch_model)
231− val paletteAgentLabel = stringResource(R.string.palette_choose_agent)
232− val paletteCommandLabel = stringResource(R.string.palette_run_command)
233− val paletteSummarizeLabel = stringResource(R.string.palette_summarize)
234− val paletteRenameLabel = stringResource(R.string.rename_session_chat)
235− val paletteShellLabel = stringResource(R.string.run_shell_command)
236− val paletteActions = remember(
237− paletteModelLabel, paletteAgentLabel, paletteCommandLabel,
238− paletteSummarizeLabel, paletteRenameLabel, paletteShellLabel, hasMessages, running,
241− add(PaletteAction("model", paletteModelLabel) { showModelPicker = true })
242− add(PaletteAction("agent", paletteAgentLabel) { showAgentPicker = true })
243− add(PaletteAction("command", paletteCommandLabel) { showCommandPicker = true })
244− if (hasMessages && !running) add(PaletteAction("summarize", paletteSummarizeLabel) { vm.summarize() })
245− if (!running) add(PaletteAction("shell", paletteShellLabel) { showShellDialog = true })
246− add(PaletteAction("rename", paletteRenameLabel) { showRenameDialog = true })
250− // Keep the screen awake while the agent is working in *this* session. The foreground
251− // service that holds process priority during a run is managed app-wide off
252− // container.anyRunActive (see OpencodeApp) so it survives navigating away from the chat
253− // mid-run — otherwise leaving the screen would drop priority and Doze could choke the
254− // SSE stream before the completion notification fires.
255− val currentView = LocalView.current
256− val appContext = LocalContext.current.applicationContext
257− DisposableEffect(running) {
258− currentView.keepScreenOn = running
259− onDispose { currentView.keepScreenOn = false }
262− LaunchedEffect(Unit) {
263− vm.errorEvents.collect { event ->
264− // Only a failed *send* is retryable; attaching Retry to any other error (e.g. a
265− // message-load failure) would silently re-submit the last prompt on tap.
266− val result = if (event.retryable) {
267− snackbar.showSnackbar(message = event.message, actionLabel = retryLabel)
269− snackbar.showSnackbar(event.message)
271− if (result == androidx.compose.material3.SnackbarResult.ActionPerformed) vm.retryFailed()
275− // --- Attachments, voice, and share-link plumbing ---
276− val attachTooLargeMsg = stringResource(R.string.attachment_too_large)
277− val attachFailedMsg = stringResource(R.string.attachment_failed)
278− val attachLimitMsg = stringResource(R.string.attachment_limit)
279− val noCameraMsg = stringResource(R.string.no_camera_app)
280− val noVoiceMsg = stringResource(R.string.no_voice_app)
281− val voicePrompt = stringResource(R.string.voice_prompt)
282− val linkCopiedMsg = stringResource(R.string.link_copied)
284− // Convert each picked Uri to a base64 attachment off the main thread, honoring the
285− // per-prompt count cap and surfacing per-file errors without aborting the batch.
286− fun stageUris(uris: List<Uri>) {
287− if (uris.isEmpty()) return
290− if (vm.attachments.value.size >= NetworkConfig.maxAttachments) {
291− snackbar.showSnackbar(attachLimitMsg)
294− when (val result = uri.toAttachmentResult(appContext)) {
295− is AttachmentResult.Ok -> vm.addAttachment(result.attachment)
296− AttachmentResult.TooLarge -> snackbar.showSnackbar(attachTooLargeMsg)
297− AttachmentResult.Failed -> snackbar.showSnackbar(attachFailedMsg)
303− val photoPicker = rememberLauncherForActivityResult(
304− ActivityResultContracts.PickMultipleVisualMedia(NetworkConfig.maxAttachments),
305− ) { uris -> stageUris(uris) }
307− val filePicker = rememberLauncherForActivityResult(
308− ActivityResultContracts.GetMultipleContents(),
309− ) { uris -> stageUris(uris) }
311− // Uri survives a config change mid-capture so the TakePicture result still resolves.
312− var pendingCaptureUri by rememberSaveable { mutableStateOf<Uri?>(null) }
313− val cameraLauncher = rememberLauncherForActivityResult(
314− ActivityResultContracts.TakePicture(),
316− val uri = pendingCaptureUri
317− pendingCaptureUri = null
318− if (success && uri != null) stageUris(listOf(uri))
321− val voiceLauncher = rememberLauncherForActivityResult(
322− ActivityResultContracts.StartActivityForResult(),
324− if (result.resultCode == Activity.RESULT_OK) {
325− val spoken = result.data
326− ?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)
328− ?.takeIf { it.isNotBlank() }
329− if (spoken != null) {
330− // Append to the existing draft rather than replacing, so dictation adds to
331− // whatever the user already typed.
332− val current = vm.draft.value
333− val combined = if (current.isBlank()) spoken else "$current $spoken"
334− vm.updateDraft(combined.take(NetworkConfig.maxDraftLengthChars))
339− fun launchCamera() {
340− val uri = newCameraCaptureUri(appContext)
342− scope.launch { snackbar.showSnackbar(attachFailedMsg) }
345− pendingCaptureUri = uri
346− runCatching { cameraLauncher.launch(uri) }
347− .onFailure { pendingCaptureUri = null; scope.launch { snackbar.showSnackbar(noCameraMsg) } }
351− val intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {
352− putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM)
353− putExtra(RecognizerIntent.EXTRA_PROMPT, voicePrompt)
355− runCatching { voiceLauncher.launch(intent) }
356− .onFailure { scope.launch { snackbar.showSnackbar(noVoiceMsg) } }
359− // A freshly-created share link is copied to the clipboard so the user can paste it right away.
360− LaunchedEffect(Unit) {
361− vm.shareLinkEvents.collect { url ->
362− copyToClipboard(shareContext, "share", url)
363− snackbar.showSnackbar(linkCopiedMsg)
367− // Navigate to a session freshly branched from a message (branchFrom), once it's created.
368− val branchedMsg = stringResource(R.string.branch_created)
369− LaunchedEffect(onOpenSession) {
370− vm.branchEvents.collect { newId ->
371− showToast(shareContext, branchedMsg)
372− onOpenSession?.invoke(newId)
376− // Stage images shared into the app (via the system share sheet) as attachments, once.
377− LaunchedEffect(Unit) {
378− val shared = container.consumePendingSharedMedia()
379− if (shared.isNotEmpty()) stageUris(shared.map { Uri.parse(it) })
383− if (vm.send(draft)) {
384− // TextHandleMove (a light tick) is semantically right for a send commit;
385− // LongPress is reserved for long-press/swipe gestures.
386− haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)
390− BackHandler(enabled = running && !showModelPicker && !showAgentPicker && !showCommandPicker) { showExitConfirm = true }
393− // Hardware-keyboard shortcuts (tablets / DeX / Chromebooks): Ctrl+K opens the command
394− // palette; Escape closes it, or stops a run. onPreviewKeyEvent on the Scaffold root sees
395− // events before the focused text field, but only Ctrl+K / Escape are consumed so normal
396− // typing (and the composer's own Enter-to-send handling) is untouched.
397− modifier = Modifier.onPreviewKeyEvent { ev ->
398− if (ev.type != KeyEventType.KeyDown) return@onPreviewKeyEvent false
400− ev.isCtrlPressed && ev.key == Key.K -> { showPalette = true; true }
401− ev.key == Key.Escape && showPalette -> { showPalette = false; true }
402− ev.key == Key.Escape && running && !showStopConfirm && !showExitConfirm -> {
403− showStopConfirm = true; true
411− val changeLabel = stringResource(R.string.change_model_agent)
414− .clickable(enabled = models.isNotEmpty(), role = Role.Button) { showModelPicker = true }
415− .semantics(mergeDescendants = true) { contentDescription = changeLabel },
416− verticalAlignment = Alignment.CenterVertically,
418− Column(modifier = Modifier.weight(1f, fill = false)) {
419− // maxLines=1 + Ellipsis so a long session title can't wrap and
420− // push the top bar to multiple lines, shifting the whole layout.
422− sessionTitle ?: sessionLabel,
424− overflow = TextOverflow.Ellipsis,
428− style = MaterialTheme.typography.labelSmall,
429− color = MaterialTheme.colorScheme.onSurfaceVariant,
431− overflow = TextOverflow.Ellipsis,
434− // Visual affordance that the title opens the model picker;
435− // without it the tappable title is indistinguishable from plain
436− // text and the picker is effectively undiscoverable.
437− if (models.isNotEmpty()) {
439− Icons.Filled.KeyboardArrowDown,
440− contentDescription = null,
441− tint = MaterialTheme.colorScheme.onSurfaceVariant,
442− modifier = Modifier.size(20.dp),
448− IconButton(onClick = {
449− if (running) showExitConfirm = true else onBack()
451− Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = stringResource(R.string.back))
455− // At-a-glance run status in the top bar. When the user is scrolled
456− // up (jump-to-latest FAB visible), the input-bar Stop button and the
457− // trailing "working…" row are off-screen, so a top-bar spinner is the
458− // only signal the agent is still working.
460− val workingLabel = stringResource(R.string.working)
461− CircularProgressIndicator(
462− Modifier.size(18.dp).semantics { contentDescription = workingLabel },
466− // Manual refresh: forces an SSE reconnect, which re-seeds messages
467− // from REST. A recovery path when the stream silently drops and the
468− // auto-reconnect re-seed is slow or fails. Shows a brief spinner as
469− // immediate tap feedback — the SSE reconnect may not visibly change
470− // the connection state when already Connected, so without it the tap
471− // appears to do nothing.
472− val refreshLabel = stringResource(R.string.refresh)
474− onClick = { vm.refreshMessages() },
475− enabled = activeConnection != null && !refreshing,
478− CircularProgressIndicator(
479− Modifier.size(18.dp).semantics { contentDescription = refreshLabel },
483− Icon(Icons.Filled.Refresh, contentDescription = refreshLabel)
486− // Overflow menu consolidates the less-frequent actions (share,
487− // commands, agent, model, rename, delete) so the top bar stays
488− // scannable on narrow phones — previously 5 icons crowded the bar
489− // alongside the back button and tappable title. Catalog-loading
490− // spinners stay inline (next to the overflow) so a load state is
491− // visible without opening the menu.
492− val moreLabel = stringResource(R.string.more)
493− val loadingLabel = stringResource(R.string.loading)
494− val shareLabel = stringResource(R.string.share_conversation)
495− val commandsLabel = stringResource(R.string.commands)
496− val agentLabel = stringResource(R.string.choose_agent)
497− val modelLabel = stringResource(R.string.choose_model)
498− val renameLabel = stringResource(R.string.rename_session_chat)
499− val deleteLabel = stringResource(R.string.delete_session_chat)
500− val createShareLabel = stringResource(R.string.create_share_link)
501− val copyShareLabel = stringResource(R.string.copy_share_link)
502− val stopShareLabel = stringResource(R.string.stop_sharing)
503− val summarizeLabel = stringResource(R.string.summarize_conversation)
504− val initLabel = stringResource(R.string.generate_agents_md)
505− val shellLabel = stringResource(R.string.run_shell_command)
507− IconButton(onClick = { showOverflowMenu = true }) {
508− Icon(Icons.Filled.MoreVert, contentDescription = moreLabel)
511− expanded = showOverflowMenu,
512− onDismissRequest = { showOverflowMenu = false },
515− text = { Text(shareLabel) },
516− enabled = hasMessages,
518− showOverflowMenu = false
520− val md = withContext(Dispatchers.Default) {
521− buildConversationMarkdown(vm.messages.value, sessionTitle)
523− val send = android.content.Intent(android.content.Intent.ACTION_SEND).apply {
524− type = "text/markdown"
525− putExtra(android.content.Intent.EXTRA_SUBJECT, sessionTitle ?: defaultShareSubject)
526− putExtra(android.content.Intent.EXTRA_TEXT, md)
528− runCatchingCancellable { shareContext.startActivity(android.content.Intent.createChooser(send, shareLabel)) }
529− .onFailure { showToast(shareContext, shareContext.getString(R.string.no_share_app)) }
534− text = { Text(commandsLabel) },
535− enabled = !commandsLoading || commands.isNotEmpty(),
536− onClick = { showOverflowMenu = false; showCommandPicker = true },
539− text = { Text(agentLabel) },
540− enabled = !agentsLoading || agents.isNotEmpty(),
541− onClick = { showOverflowMenu = false; showAgentPicker = true },
544− text = { Text(modelLabel) },
545− enabled = !modelsLoading || models.isNotEmpty(),
546− onClick = { showOverflowMenu = false; showModelPicker = true },
548− androidx.compose.material3.HorizontalDivider()
549− // Session sharing: create a public link, copy an existing one, or revoke it.
550− if (shareUrl == null) {
552− text = { Text(createShareLabel) },
553− enabled = hasMessages,
554− onClick = { showOverflowMenu = false; vm.shareSession() },
558− text = { Text(copyShareLabel) },
560− showOverflowMenu = false
562− copyToClipboard(shareContext, "share", it)
563− scope.launch { snackbar.showSnackbar(linkCopiedMsg) }
568− text = { Text(stopShareLabel) },
569− onClick = { showOverflowMenu = false; vm.unshareSession() },
573− text = { Text(summarizeLabel) },
574− enabled = hasMessages && !running,
575− onClick = { showOverflowMenu = false; vm.summarize() },
578− text = { Text(initLabel) },
580− onClick = { showOverflowMenu = false; vm.initProject() },
583− text = { Text(shellLabel) },
585− onClick = { showOverflowMenu = false; showShellDialog = true },
587− androidx.compose.material3.HorizontalDivider()
589− text = { Text(renameLabel) },
590− onClick = { showOverflowMenu = false; showRenameDialog = true },
593− text = { Text(deleteLabel, color = MaterialTheme.colorScheme.error) },
594− onClick = { showOverflowMenu = false; showDeleteDialog = true },
597− // While a catalog is initially loading (empty list + loading flag),
598− // show a tiny inline spinner beside the overflow so the user can see
599− // a load is in progress without opening the menu. Once loaded the
600− // spinner disappears; the menu items are always enabled (tapping a
601− // picker with no items shows the "no models/agents/commands" state).
602− val catalogLoading = (commandsLoading && commands.isEmpty()) ||
603− (agentsLoading && agents.isEmpty()) ||
604− (modelsLoading && models.isEmpty())
605− if (catalogLoading) {
606− CircularProgressIndicator(
608− .align(Alignment.TopEnd)
610− .semantics { contentDescription = loadingLabel },
618− snackbarHost = { SnackbarHost(snackbar) },
620− val queuedFollowUp by vm.queuedFollowUp.collectAsStateWithLifecycle()
621− val todoPlan by vm.todoPlan.collectAsStateWithLifecycle()
622− val queuedOffline by vm.outbox.collectAsStateWithLifecycle()
623− val outboxSending by container.outboxSending.collectAsStateWithLifecycle()
625− // Pinned above the composer so the agent's plan and progress stay visible
626− // while scrolled up mid-run; renders nothing when there's no plan.
627− TodoPlanBar(todoPlan)
628− AnimatedVisibility(visible = reverted) {
629− RevertBanner(onUndo = { vm.unrevert() })
631− AnimatedVisibility(visible = queuedOffline.isNotEmpty()) {
633− count = queuedOffline.size,
634− sending = outboxSending,
635− onFlush = { vm.flushQueued() },
636− onDiscard = { vm.discardAllQueued() },
641− onValueChange = vm::updateDraft,
643− aborting = aborting,
644− enabled = activeConnection != null,
645− sendOnEnter = sendOnEnter,
647− onAbort = { showStopConfirm = true },
648− queuedFollowUp = queuedFollowUp,
649− onQueueFollowUp = vm::queueFollowUp,
650− onCancelQueue = { vm.queueFollowUp("") },
651− focusRequester = inputFocusRequester,
652− attachments = attachments,
653− onRemoveAttachment = vm::removeAttachment,
656− PickVisualMediaRequest(ActivityResultContracts.PickVisualMedia.ImageOnly),
659− onPickFile = { filePicker.launch("*/*") },
660− onCamera = { launchCamera() },
661− onVoice = { launchVoice() },
666− // Collect messages inside the content lambda so streaming token updates
667− // recompose only this subtree, not the top bar / input bar / 20+ other
668− // state reads in the ChatScreen body.
669− val messages by vm.messages.collectAsStateWithLifecycle()
670− val listState = rememberLazyListState()
671− val contentScope = rememberCoroutineScope()
672− val timeTick = rememberRelativeTimeTick()
673− // Group messages by day and interleave date separators so a long conversation
674− // has visual "Today"/"Yesterday"/date breaks. Computed once per messages
675− // emission (memoized) so a scroll-induced recomposition doesn't re-scan. Lives
676− // outside the PullToRefreshBox so the auto-scroll effects below can reference
677− // the same list the LazyColumn renders (separators shift the indices vs. the
678− // raw messages list, so scroll targets must be in listItems space).
679− val todayLabel = stringResource(R.string.today)
680− val yesterdayLabel = stringResource(R.string.yesterday)
681− val listItems = remember(messages, todayLabel, yesterdayLabel) {
682− buildMessageListItems(messages, todayLabel, yesterdayLabel)
684− // listItems is a plain (non-snapshot) local, rebuilt each recomposition. The
685− // derivedStateOf and snapshotFlow lambdas below are created once (keyless
686− // remember / LaunchedEffect(Unit)); reading `listItems` directly inside them
687− // would capture the first composition's list — which is empty, since `messages`
688− // starts empty — freezing it forever. That pinned isPinnedToBottom at true and
689− // AutoScrollSignal.size at 0, breaking streaming auto-scroll and the
690− // jump-to-latest FAB. rememberUpdatedState hands those lambdas a stable State
691− // whose value tracks the latest list.
692− val currentListItems by rememberUpdatedState(listItems)
694− val isPinnedToBottom by remember {
696− val lastVisible = listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index ?: -1
697− // When a run is active, the LazyColumn has one trailing "__typing"
698− // item after the last list item. Account for it so "pinned to bottom"
699− // includes the working indicator — otherwise the pin check targets
700− // listItems.lastIndex, the typing row sits just below the viewport,
701− // and the user never sees the progress indicator even when pinned.
702− val items = currentListItems
703− val effectiveLast = if (running) items.size else items.lastIndex
704− lastVisible >= effectiveLast || items.isEmpty()
708− // Jump to the newest message once, when the conversation first loads. Guarded by a
709− // saveable one-shot flag so it doesn't re-fire on recomposition after a config change
710− // (rotation) — rememberLazyListState restores the user's scroll offset, and an
711− // unconditional scrollToItem here would clobber it, snapping them back to the bottom.
712− var didInitialScroll by rememberSaveable { mutableStateOf(false) }
713− LaunchedEffect(listItems.isNotEmpty()) {
714− if (listItems.isNotEmpty() && !didInitialScroll) {
715− // When a run is active the LazyColumn has a trailing "__typing" row at
716− // listItems.size; target it (not listItems.lastIndex) so deep-linking into a
717− // running session lands truly pinned to bottom and streaming auto-scroll engages.
718− listState.scrollToItem(if (running) listItems.size else listItems.lastIndex)
719− didInitialScroll = true
723− // When a run starts, the LazyColumn gains a trailing "__typing" row, so
724− // effectiveLast jumps from listItems.lastIndex to listItems.size and the
725− // isPinnedToBottom check flips to false the instant you send — freezing
726− // auto-scroll. If the user was pinned to the last item just before the run
727− // began, bring the typing row into view so the pin (and streaming follow) is
728− // preserved. Guard on the raw last-visible index (isPinnedToBottom has already
729− // recomputed to false by now) so we don't scroll when the user had scrolled up.
730− LaunchedEffect(running) {
731− if (running && listItems.isNotEmpty()) {
732− val lastVisible = listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index ?: -1
733− if (lastVisible >= listItems.lastIndex) {
734− runCatchingCancellable { listState.animateScrollToItem(listItems.size) }
739− LaunchedEffect(Unit) {
741− // Track list size + the streaming length of the last part so we auto-scroll
742− // as content arrives, plus the pinned flag. A small data class with primitive
743− // fields avoids the per-frame boxing that Triple<Int,Int,Boolean> pays
744− // (snapshotFlow re-evaluates this lambda every snapshot), and reading only the
745− // last part's length is O(1) vs. a sumOf over every part. Covering reasoning
746− // and tool output — not just TextPart — keeps a pinned view following a long
747− // reasoning/tool block while it streams (previously it stalled at 0).
748− val lastLen = streamingContentLength(messages.lastOrNull()?.parts?.lastOrNull())
749− AutoScrollSignal(currentListItems.size, lastLen, isPinnedToBottom)
750− }.collect { signal ->
751− if (signal.size > 0 && signal.pinned) {
752− // Scroll to the effective last index, including the trailing
753− // "__typing" row when a run is active so the working indicator
754− // is brought into view (not just the last message).
755− val items = currentListItems
756− val target = if (running) items.size else items.lastIndex
757− listState.scrollToItem(target)
762− CompositionLocalProvider(LocalRelativeTimeTick provides timeTick) {
763− // The bottomBar (ChatInputBar) already has imePadding, and the Scaffold's
764− // content padding accounts for the bottomBar's raised height, so the message
765− // list is already above the keyboard. Adding imePadding here would double-apply
766− // the IME inset and push messages too far up.
767− Box(modifier = Modifier.fillMaxSize().padding(padding)) {
768− if (activeConnection == null) {
770− modifier = Modifier.align(Alignment.Center).padding(24.dp),
771− horizontalAlignment = Alignment.CenterHorizontally,
774− stringResource(R.string.not_connected),
775− color = MaterialTheme.colorScheme.error,
777− Spacer(Modifier.size(12.dp))
778− Button(onClick = { vm.reconnect() }, enabled = !reconnecting) {
780− CircularProgressIndicator(
781− Modifier.size(20.dp),
782− color = MaterialTheme.colorScheme.onPrimary,
786− Text(stringResource(R.string.reconnect))
792− state = connectionState,
793− modifier = Modifier.align(Alignment.TopCenter),
794− isOnline = isOnline,
795− // On a hard failure, retry by forcing an SSE reconnect (which
796− // re-seeds from REST). refreshMessages is the right recovery path
797− // when the connection is present but the stream died; reconnect()
798− // is the path when the whole connection is gone (handled by the
799− // separate "Not connected" state below).
800− onRetry = { vm.refreshMessages() },
802− if (loading && messages.isEmpty()) {
803− val loadingLabel = stringResource(R.string.loading)
804− CircularProgressIndicator(
806− .align(Alignment.Center)
807− .semantics { contentDescription = loadingLabel },
809− } else if (loadError && messages.isEmpty()) {
810− // A failed load with nothing to show. Distinct from the empty
811− // conversation state below — the conversation isn't empty, it
812− // failed to load, and offering "Start a conversation" here is
813− // misleading. Offer a Retry instead, mirroring SessionListScreen.
815− modifier = Modifier.align(Alignment.Center).padding(24.dp),
816− horizontalAlignment = Alignment.CenterHorizontally,
819− stringResource(R.string.load_messages_failed),
820− color = MaterialTheme.colorScheme.error,
822− Spacer(Modifier.size(12.dp))
823− Button(onClick = { vm.refreshMessages() }) {
824− Text(stringResource(R.string.retry))
827− } else if (messages.isEmpty() && running) {
828− // A run just started but no parts have arrived yet — the empty
829− // list with only the trailing "working…" row looks broken, so
830− // surface a clear starting state until the first part streams in.
831− val workingText = stringResource(R.string.working)
833− modifier = Modifier.align(Alignment.Center).padding(24.dp),
834− horizontalAlignment = Alignment.CenterHorizontally,
836− CircularProgressIndicator(Modifier.size(28.dp), strokeWidth = 3.dp)
837− Spacer(Modifier.size(12.dp))
838− Text(workingText, style = MaterialTheme.typography.bodyMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
840− } else if (messages.isEmpty()) {
844− // Focus the input so the user can edit the suggestion before
845− // sending, instead of having to manually tap the field.
846− runCatching { inputFocusRequester.requestFocus() }
848− modifier = Modifier.align(Alignment.Center),
851− // Pull-to-refresh wraps the message list so the user can force an SSE
852− // reconnect + re-seed with the same gesture they use on the session and
853− // file lists, instead of hunting for the top-bar refresh icon. The empty
854− // / loading / error states above stay outside the PTR box since there's
855− // no list content to pull against.
857− isRefreshing = refreshing,
858− onRefresh = { vm.refreshMessages() },
859− modifier = Modifier.fillMaxSize(),
861− val lastMessageId = messages.lastOrNull()?.info?.id
862− // Text-to-speech for reading assistant replies aloud; shuts down when the
863− // message list leaves composition.
864− val tts = rememberTtsController()
865− val speakingMessageId by tts.speakingId
868− modifier = Modifier.fillMaxSize(),
869− contentPadding = PaddingValues(16.dp),
870− verticalArrangement = Arrangement.spacedBy(16.dp),
875− contentType = { it.contentType },
878− is MessageListItem.Separator -> DateSeparator(item.label)
879− is MessageListItem.Message -> {
880− val message = item.message
881− // Only the last (streaming) message needs isRunning — it drives the
882− // reasoning-block spinner. Passing the live flag to every bubble
883− // makes all visible messages recompose whenever a run starts or stops.
884− val modelLabel = remember(message.info, models) {
885− (message.info as? soy.iko.opencode.data.model.AssistantMessage)
886− ?.let { resolveModelLabel(it, models) }
890− isRunning = running && message.info.id == lastMessageId,
891− imageContext = imageContext,
892− modelLabel = modelLabel,
893− onOpenFile = onOpenFile,
894− onRevert = { vm.revertTo(message.info.id) },
895− onEdit = { text -> vm.editMessage(message.info.id, text) },
896− onSpeak = { text -> tts.toggle(message.info.id, text) },
897− isSpeaking = message.info.id == speakingMessageId,
900− runCatching { inputFocusRequester.requestFocus() }
902− onBranch = { text -> vm.branchFrom(text) },
908− item(key = "__typing") {
909− val workingText = stringResource(R.string.working)
911− verticalAlignment = Alignment.CenterVertically,
912− modifier = Modifier.semantics {
913− contentDescription = workingText
916− CircularProgressIndicator(Modifier.size(16.dp), strokeWidth = 2.dp)
917− Text(workingText, style = MaterialTheme.typography.labelMedium, modifier = Modifier.padding(start = 6.dp))
923− // Jump-to-latest affordance when the user has scrolled away during a stream.
925− visible = !isPinnedToBottom && listItems.isNotEmpty(),
926− modifier = Modifier.align(Alignment.BottomEnd),
928− ExtendedFloatingActionButton(
930− if (listItems.isNotEmpty()) {
931− // Scroll to the effective last index, including the
932− // trailing "__typing" row when a run is active.
933− val target = if (running) listItems.size else listItems.lastIndex
934− contentScope.launch { runCatchingCancellable { listState.animateScrollToItem(target) } }
937− icon = { Icon(Icons.Filled.KeyboardArrowDown, contentDescription = stringResource(R.string.latest)) },
938− text = { Text(stringResource(R.string.latest)) },
939− modifier = Modifier.padding(end = 16.dp, bottom = 16.dp),
948− if (showExitConfirm) {
950− onDismissRequest = { showExitConfirm = false },
951− title = { Text(stringResource(R.string.stop_and_exit_title)) },
952− text = { Text(stringResource(R.string.stop_and_exit_text)) },
954− TextButton(onClick = {
955− showExitConfirm = false
956− haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)
959− }) { Text(stringResource(R.string.stop_and_exit)) }
962− TextButton(onClick = { showExitConfirm = false }) { Text(stringResource(R.string.stay)) }
967− if (showStopConfirm) {
969− onDismissRequest = { showStopConfirm = false },
970− title = { Text(stringResource(R.string.stop_run_title)) },
971− text = { Text(stringResource(R.string.stop_run_text)) },
973− TextButton(onClick = {
974− showStopConfirm = false
975− haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.TextHandleMove)
977− }) { Text(stringResource(R.string.stop), color = MaterialTheme.colorScheme.error) }
980− TextButton(onClick = { showStopConfirm = false }) { Text(stringResource(R.string.cancel)) }
985− if (showRenameDialog) {
986− RenameSessionChatDialog(
987− initialTitle = sessionTitle ?: "",
988− onDismiss = { showRenameDialog = false },
989− onConfirm = { newName ->
990− showRenameDialog = false
991− vm.renameSession(newName)
996− if (showDeleteDialog) {
998− onDismissRequest = { showDeleteDialog = false },
999− title = { Text(stringResource(R.string.delete_session_chat_title)) },
1000− text = { Text(stringResource(R.string.delete_session_chat_text, sessionTitle ?: sessionLabel)) },
1002− TextButton(onClick = {
1003− showDeleteDialog = false
1004− haptics.performHapticFeedback(androidx.compose.ui.hapticfeedback.HapticFeedbackType.LongPress)
1006− }) { Text(stringResource(R.string.delete), color = MaterialTheme.colorScheme.error) }
1009− TextButton(onClick = { showDeleteDialog = false }) { Text(stringResource(R.string.cancel)) }
1014− if (showShellDialog) {
1015− ShellCommandDialog(
1016− onDismiss = { showShellDialog = false },
1018− showShellDialog = false
1024− if (showModelPicker) {
1027− selected = selectedModel,
1028− loading = modelsLoading,
1029− error = modelsError,
1030− onSelect = { vm.selectModel(it) },
1031− onRetry = { vm.reloadModels() },
1032− onDismiss = { showModelPicker = false },
1036− if (showAgentPicker) {
1039− selected = selectedAgent,
1040− loading = agentsLoading,
1041− error = agentsError,
1042− onSelect = { vm.selectAgent(it?.name) },
1043− onRetry = { vm.reloadAgents() },
1044− onDismiss = { showAgentPicker = false },
1048− if (showCommandPicker) {
1049− CommandPickerSheet(
1050− commands = commands,
1051− loading = commandsLoading,
1052− error = commandsError,
1053− onSelect = { vm.runCommand(it) },
1054− onRetry = { vm.reloadCommands() },
1055− onDismiss = { showCommandPicker = false },
1059− pendingPermission?.let { permission ->
1061− permission = permission,
1062− onRespond = { response -> vm.respondPermission(permission, response) },
1067− CommandPalette(actions = paletteActions, onDismiss = { showPalette = false })
1072−private fun ChatInputBar(
1074− onValueChange: (String) -> Unit,
1078− sendOnEnter: Boolean,
1079− onSend: () -> Unit,
1080− onAbort: () -> Unit,
1081− queuedFollowUp: String?,
1082− onQueueFollowUp: (String) -> Unit,
1083− onCancelQueue: () -> Unit,
1084− focusRequester: androidx.compose.ui.focus.FocusRequester,
1085− attachments: List<PendingAttachment>,
1086− onRemoveAttachment: (String) -> Unit,
1087− onPickPhoto: () -> Unit,
1088− onPickFile: () -> Unit,
1089− onCamera: () -> Unit,
1090− onVoice: () -> Unit,
1092− // Sendable when there's text OR at least one attachment (an image-only prompt is valid).
1093− val hasContent = value.isNotBlank() || attachments.isNotEmpty()
1094− Surface(tonalElevation = 3.dp, modifier = Modifier.imePadding()) {
1095− Column(modifier = Modifier.fillMaxWidth().windowInsetsPadding(WindowInsets.navigationBars)) {
1096− // A queued follow-up replaces the Stop button with a "queued" chip so the
1097− // user sees their message will be sent when the run finishes, and can cancel.
1098− if (queuedFollowUp != null) {
1100− modifier = Modifier
1102− .padding(start = 12.dp, top = 6.dp, end = 4.dp),
1103− verticalAlignment = Alignment.CenterVertically,
1105− Column(modifier = Modifier.weight(1f)) {
1107− stringResource(R.string.queued),
1108− style = MaterialTheme.typography.labelSmall,
1109− color = MaterialTheme.colorScheme.onSurfaceVariant,
1113− style = MaterialTheme.typography.bodySmall,
1114− color = MaterialTheme.colorScheme.onSurfaceVariant,
1116− overflow = TextOverflow.Ellipsis,
1119− TextButton(onClick = onCancelQueue, contentPadding = androidx.compose.foundation.layout.PaddingValues(horizontal = 8.dp)) {
1120− Text(stringResource(R.string.cancel))
1124− // Staged attachments: horizontally-scrollable thumbnails/chips, each removable.
1125− AttachmentStrip(attachments, onRemove = onRemoveAttachment)
1127− modifier = Modifier.fillMaxWidth().padding(8.dp),
1128− verticalAlignment = Alignment.Bottom,
1130− // Attach menu: photo picker, camera, or any file.
1131− var showAttachMenu by remember { mutableStateOf(false) }
1133− IconButton(onClick = { showAttachMenu = true }, enabled = enabled) {
1134− Icon(Icons.Filled.Add, contentDescription = stringResource(R.string.add_attachment))
1136− DropdownMenu(expanded = showAttachMenu, onDismissRequest = { showAttachMenu = false }) {
1138− leadingIcon = { Icon(Icons.Filled.PhotoLibrary, contentDescription = null) },
1139− text = { Text(stringResource(R.string.attach_photo)) },
1140− onClick = { showAttachMenu = false; onPickPhoto() },
1143− leadingIcon = { Icon(Icons.Filled.PhotoCamera, contentDescription = null) },
1144− text = { Text(stringResource(R.string.attach_camera)) },
1145− onClick = { showAttachMenu = false; onCamera() },
1148− leadingIcon = { Icon(Icons.Filled.Description, contentDescription = null) },
1149− text = { Text(stringResource(R.string.attach_file)) },
1150− onClick = { showAttachMenu = false; onPickFile() },
1154− // Voice dictation: appends recognized speech to the draft.
1155− IconButton(onClick = onVoice, enabled = enabled) {
1156− Icon(Icons.Filled.Mic, contentDescription = stringResource(R.string.voice_input))
1160− onValueChange = { v ->
1161− // Cap input length so a huge paste can't stall the UI. Shares are
1162− // capped separately in MainActivity; this guards typed/pasted drafts.
1163− onValueChange(v.take(NetworkConfig.maxDraftLengthChars))
1165− modifier = Modifier
1167− .focusRequester(focusRequester)
1168− .testTag("chat_input")
1169− .onPreviewKeyEvent { event ->
1170− if (event.type != KeyEventType.KeyDown || event.key != Key.Enter) return@onPreviewKeyEvent false
1171− // With "Send on Enter" on, Enter sends (Shift+Enter newlines).
1172− // With it off, Enter inserts a newline and Ctrl+Enter sends.
1173− val send = enterShouldSend(
1175− hasContent = hasContent,
1176− sendOnEnter = sendOnEnter,
1177− shift = event.isShiftPressed,
1178− ctrl = event.isCtrlPressed,
1181− if (running) onQueueFollowUp(value) else onSend()
1187− placeholder = { Text(stringResource(R.string.message_placeholder)) },
1190− // Show a "N / max" countdown once the draft crosses a high fraction of
1191− // the cap, so the user knows a paste is about to be truncated instead
1192− // of being silently cut off. Hidden for normal short prompts to avoid
1193− // clutter under a typical one-line message.
1195− val threshold = (NetworkConfig.maxDraftLengthChars * NetworkConfig.draftCountdownThresholdFraction).toInt()
1196− if (value.length >= threshold) {
1199− R.string.draft_chars_remaining,
1200− NetworkConfig.maxDraftLengthChars - value.length,
1201− NetworkConfig.maxDraftLengthChars,
1203− style = MaterialTheme.typography.labelSmall,
1204− color = if (value.length >= NetworkConfig.maxDraftLengthChars) MaterialTheme.colorScheme.error
1205− else MaterialTheme.colorScheme.onSurfaceVariant,
1209− keyboardOptions = KeyboardOptions(
1210− imeAction = ImeAction.Send,
1211− capitalization = KeyboardCapitalization.Sentences,
1213− keyboardActions = KeyboardActions(onSend = {
1214− if (enabled && hasContent) {
1215− if (running) onQueueFollowUp(value) else onSend()
1219− ComposerTrailingButton(
1221− aborting = aborting,
1222− canSend = enabled && hasContent,
1231−/** Whether a hardware Enter keypress should send: never when disabled/empty; otherwise
1232− * Enter sends (unless Shift) when send-on-Enter is on, else only Ctrl+Enter sends. */
1233−private fun enterShouldSend(
1235− hasContent: Boolean,
1236− sendOnEnter: Boolean,
1240− !enabled || !hasContent -> false
1241− sendOnEnter -> !shift
1245−/** The composer's trailing button: a Stop (with in-flight spinner) while a run is active,
1246− * otherwise Send. Extracted so [ChatInputBar] stays under the complexity threshold. */
1248−private fun ComposerTrailingButton(
1252− onSend: () -> Unit,
1253− onAbort: () -> Unit,
1256− // Show a spinner while the abort REST call is in flight so the user sees the stop
1257− // was sent, and disable to prevent a double-tap.
1260− enabled = !aborting,
1261− modifier = Modifier.padding(start = 4.dp).testTag("stop_button"),
1264− val stopLabel = stringResource(R.string.stop)
1265− CircularProgressIndicator(
1266− Modifier.size(18.dp).semantics { contentDescription = stopLabel },
1267− strokeWidth = 2.dp,
1270− Icon(Icons.Filled.Stop, contentDescription = stringResource(R.string.stop))
1277− modifier = Modifier.padding(start = 4.dp).testTag("send_button"),
1279− Icon(Icons.AutoMirrored.Filled.Send, contentDescription = stringResource(R.string.send))
1284−@OptIn(androidx.compose.foundation.layout.ExperimentalLayoutApi::class)
1286−private fun EmptyConversation(
1287− onSuggestion: (String) -> Unit,
1288− modifier: Modifier = Modifier,
1290− // A few example prompts so a first-time user has a one-tap path to their first
1291− // message instead of staring at a blank input. Tapping a chip fills the draft
1292− // (without sending) so the user can edit it before sending.
1293− val suggestions = remember {
1295− R.string.empty_chat_suggest_1,
1296− R.string.empty_chat_suggest_2,
1297− R.string.empty_chat_suggest_3,
1301− modifier = modifier.padding(32.dp),
1302− horizontalAlignment = Alignment.CenterHorizontally,
1305− Icons.Filled.AutoAwesome,
1306− contentDescription = null,
1307− modifier = Modifier.size(48.dp),
1308− tint = MaterialTheme.colorScheme.onSurfaceVariant,
1310− Spacer(Modifier.size(16.dp))
1312− stringResource(R.string.empty_chat_title),
1313− style = MaterialTheme.typography.titleMedium,
1315− Spacer(Modifier.size(8.dp))
1317− stringResource(R.string.empty_chat_hint),
1318− style = MaterialTheme.typography.bodyMedium,
1319− color = MaterialTheme.colorScheme.onSurfaceVariant,
1321− Spacer(Modifier.size(20.dp))
1322− // Suggestion chips wrap across rows on narrow screens instead of stacking full-width,
1323− // so a longer localized prompt doesn't push the chips off-screen on a phone.
1325− modifier = Modifier.fillMaxWidth(),
1326− horizontalArrangement = Arrangement.spacedBy(8.dp),
1327− verticalArrangement = Arrangement.spacedBy(8.dp),
1329− suggestions.forEach { resId ->
1330− val text = stringResource(resId)
1331− androidx.compose.material3.AssistChip(
1332− onClick = { onSuggestion(text) },
1333− label = { Text(text, style = MaterialTheme.typography.bodyMedium) },
1340−/** A banner shown while a revert checkpoint is active, offering an Undo (unrevert). */
1342−private fun RevertBanner(onUndo: () -> Unit) {
1344− color = MaterialTheme.colorScheme.tertiaryContainer,
1345− tonalElevation = 2.dp,
1346− modifier = Modifier.fillMaxWidth(),
1349− modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 4.dp, bottom = 4.dp),
1350− verticalAlignment = Alignment.CenterVertically,
1351− horizontalArrangement = Arrangement.SpaceBetween,
1353− Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.weight(1f)) {
1355− Icons.Filled.Restore,
1356− contentDescription = null,
1357− tint = MaterialTheme.colorScheme.onTertiaryContainer,
1358− modifier = Modifier.size(18.dp),
1361− stringResource(R.string.reverted_banner),
1362− style = MaterialTheme.typography.bodySmall,
1363− color = MaterialTheme.colorScheme.onTertiaryContainer,
1364− modifier = Modifier.padding(start = 8.dp),
1367− TextButton(onClick = onUndo) { Text(stringResource(R.string.undo)) }
1372−/** A banner shown while messages composed offline are queued in the outbox, with a
1373− * "Send now" nudge and a discard. Shows a spinner while the queue is flushing. */
1375−private fun OutboxBanner(
1378− onFlush: () -> Unit,
1379− onDiscard: () -> Unit,
1382− color = MaterialTheme.colorScheme.secondaryContainer,
1383− tonalElevation = 2.dp,
1384− modifier = Modifier.fillMaxWidth(),
1387− modifier = Modifier.fillMaxWidth().padding(start = 12.dp, end = 4.dp, top = 4.dp, bottom = 4.dp),
1388− verticalAlignment = Alignment.CenterVertically,
1389− horizontalArrangement = Arrangement.SpaceBetween,
1391− Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.weight(1f)) {
1393− CircularProgressIndicator(
1394− Modifier.size(16.dp),
1395− strokeWidth = 2.dp,
1396− color = MaterialTheme.colorScheme.onSecondaryContainer,
1398− Spacer(Modifier.size(8.dp))
1402− stringResource(R.string.outbox_sending)
1404− val res = if (count == 1) R.string.outbox_pending_one else R.string.outbox_pending_many
1405− stringResource(res, count)
1407− style = MaterialTheme.typography.bodySmall,
1408− color = MaterialTheme.colorScheme.onSecondaryContainer,
1412− TextButton(onClick = onFlush) { Text(stringResource(R.string.outbox_flush)) }
1413− TextButton(onClick = onDiscard) {
1414− Text(stringResource(R.string.outbox_discard_all), color = MaterialTheme.colorScheme.error)
1421−/** Prompt for a one-off shell command to run in the session's worktree. */
1423−private fun ShellCommandDialog(onDismiss: () -> Unit, onRun: (String) -> Unit) {
1424− var command by rememberSaveable { mutableStateOf("") }
1426− onDismissRequest = onDismiss,
1427− title = { Text(stringResource(R.string.run_shell_command)) },
1431− onValueChange = { command = it },
1432− modifier = Modifier.fillMaxWidth(),
1433− placeholder = { Text(stringResource(R.string.shell_command_hint)) },
1434− label = { Text(stringResource(R.string.shell_command_label)) },
1436− keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
1437− keyboardActions = KeyboardActions(onDone = { if (command.isNotBlank()) onRun(command.trim()) }),
1442− onClick = { if (command.isNotBlank()) onRun(command.trim()) },
1443− enabled = command.isNotBlank(),
1444− ) { Text(stringResource(R.string.run)) }
1446− dismissButton = { TextButton(onClick = onDismiss) { Text(stringResource(R.string.cancel)) } },
1451− * Change signal for the auto-scroll-on-stream watcher. Primitive fields avoid the
1452− * boxing `Triple<Int, Int, Boolean>` would impose on every snapshot evaluation, and
1453− * equality is structural so `snapshotFlow` emits only when something relevant changes.
1455−private data class AutoScrollSignal(val size: Int, val lastTextLength: Int, val pinned: Boolean)
1457−/** Length of the streaming content carried by [part], driving auto-scroll as it grows.
1458− * Covers text, reasoning, and tool output so a pinned view keeps following non-text
1459− * streaming, not just plain assistant text. O(1). */
1460−private fun streamingContentLength(part: Part?): Int = when (part) {
1461− is TextPart -> part.text.length
1462− is ReasoningPart -> part.text.length
1463− is ToolPart -> when (val st = part.state) {
1464− is ToolCompleted -> st.output?.length ?: 0
1465− is ToolError -> st.error?.length ?: 0
1466− is ToolRunning -> st.title?.length ?: 0
1472−/** Rename dialog for the currently-open session. Mirrors the SessionListScreen rename
1473− * dialog but lives in the chat screen so the user can rename without backing out to
1474− * the list. Pre-filled with the current title; the cap matches the list dialog. */
1476−private fun RenameSessionChatDialog(
1477− initialTitle: String,
1478− onDismiss: () -> Unit,
1479− onConfirm: (String) -> Unit,
1481− var title by rememberSaveable(initialTitle) { mutableStateOf(initialTitle) }
1483− onDismissRequest = onDismiss,
1484− title = { Text(stringResource(R.string.rename_session_chat)) },
1488− onValueChange = { v -> title = v.take(NetworkConfig.maxSessionTitleChars) },
1489− modifier = Modifier.fillMaxWidth(),
1490− placeholder = { Text(stringResource(R.string.session_title_hint)) },
1491− label = { Text(stringResource(R.string.rename_session_chat)) },
1493− keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
1494− keyboardActions = KeyboardActions(onDone = { if (title.isNotBlank()) onConfirm(title.trim()) }),
1498− TextButton(onClick = { if (title.isNotBlank()) onConfirm(title.trim()) }, enabled = title.isNotBlank()) {
1499− Text(stringResource(R.string.save))
1503− TextButton(onClick = onDismiss) { Text(stringResource(R.string.cancel)) }
1509− * A single item in the chat message list — either a [Message] bubble or a day
1510− * [Separator] inserted before the first message of a new day. The separator shifts
1511− * the LazyColumn indices vs. the raw messages list, so scroll-target math must use
1512− * the [List] of these items (not `messages.size`/`lastIndex`).
1514−private sealed interface MessageListItem {
1516− val contentType: Any
1518− data class Message(val message: MessageWithParts) : MessageListItem {
1519− override val key: Any get() = message.info.id
1520− override val contentType: Any get() = message.info::class
1523− data class Separator(val label: String, val ordinal: Int) : MessageListItem {
1524− // Key on the day-occurrence ordinal, not the label: two non-contiguous groups
1525− // can share a label (e.g. an untimestamped message — empty label — between two
1526− // same-day messages, or two untimestamped groups), and a label-only key would
1527− // then collide, which makes LazyColumn throw on duplicate keys. The ordinal is
1528− // stable for a given message ordering so slots aren't needlessly recreated.
1529− override val key: Any get() = "sep_${ordinal}_$label"
1530− // Separators share a contentType so the LazyColumn can recycle their slots.
1531− override val contentType: Any get() = "separator"
1536− * Build the interleaved list of [MessageListItem]s for the message list, inserting a
1537− * [MessageListItem.Separator] before the first message of each new calendar day. Uses
1538− * the message's `time.created` (falling back to `updated` then `completed`) to bucket.
1539− * Messages with no timestamp are grouped under an empty-label separator only if they
1540− * start the list, so a server that omits timestamps doesn't suppress the first divider.
1542− * [todayLabel]/[yesterdayLabel] are resolved by the caller (a @Composable can't call
1543− * stringResource from inside this plain function) and used for the "Today"/"Yesterday"
1544− * labels; older days fall back to a locale-stable medium-date format.
1546−private fun buildMessageListItems(
1547− messages: List<MessageWithParts>,
1548− todayLabel: String,
1549− yesterdayLabel: String,
1550−): List<MessageListItem> {
1551− if (messages.isEmpty()) return emptyList()
1552− val today = java.time.LocalDate.now(java.time.ZoneId.systemDefault())
1553− val dateFmt = mediumDateFormat()
1554− val result = ArrayList<MessageListItem>(messages.size + 4)
1555− var lastDayKey: String? = null
1557− for (message in messages) {
1558− val ts = message.info.time?.created ?: message.info.time?.updated ?: message.info.time?.completed
1559− val dayKey = ts?.let { dayKey(it) } ?: ""
1560− if (dayKey != lastDayKey) {
1561− result.add(MessageListItem.Separator(dayLabel(dayKey, ts ?: 0L, today, todayLabel, yesterdayLabel, dateFmt), sepOrdinal++))
1562− lastDayKey = dayKey
1564− result.add(MessageListItem.Message(message))
1570− * A stable bucket key for a timestamp's calendar day (epoch-days as a string).
1572− * [buildMessageListItems] re-runs on every streaming snapshot (the memo is keyed on the
1573− * whole `messages` list, which must stay so the live message's fresh parts render), so a
1574− * naive implementation would re-allocate an `Instant`/`ZonedDateTime`/`LocalDate` for
1575− * every message on every token. Message timestamps are immutable once assigned, so we
1576− * memoize the parse per epoch-millis: after the first snapshot, each unchanged message is
1577− * a cheap hash lookup. Bounded LRU (access-order) caps memory; only touched on the main
1578− * thread during composition, so the coarse lock is uncontended.
1580−private val dayKeyCache = object : LinkedHashMap<Long, String>(128, 0.75f, true) {
1581− override fun removeEldestEntry(eldest: MutableMap.MutableEntry<Long, String>): Boolean = size > 1024
1584−private fun dayKey(epochMillis: Long): String = synchronized(dayKeyCache) {
1585− dayKeyCache.getOrPut(epochMillis) {
1586− java.time.Instant.ofEpochMilli(epochMillis)
1587− .atZone(java.time.ZoneId.systemDefault()).toLocalDate().toEpochDay().toString()
1591−// The medium-date formatter is an ICU locale lookup; cache one instance instead of
1592−// allocating a fresh one per buildMessageListItems call, rebuilding only if the default
1593−// locale changes at runtime. Main-thread-only, so no synchronization is needed.
1594−private var cachedDateFmt: java.text.DateFormat? = null
1595−private var cachedDateFmtLocale: java.util.Locale? = null
1597−private fun mediumDateFormat(): java.text.DateFormat {
1598− val locale = java.util.Locale.getDefault()
1599− val existing = cachedDateFmt
1600− if (existing != null && cachedDateFmtLocale == locale) return existing
1601− return java.text.DateFormat.getDateInstance(java.text.DateFormat.MEDIUM).also {
1603− cachedDateFmtLocale = locale
1608− * Resolve a day-key back to a human-readable label. "Today" / "Yesterday" for the
1609− * recent days, otherwise a locale-stable medium-date format. Returns an empty string
1610− * when [dayKey] is empty (no timestamp) so no separator is rendered for un-timestamped
1613−private fun dayLabel(
1616− today: java.time.LocalDate,
1617− todayLabel: String,
1618− yesterdayLabel: String,
1619− dateFmt: java.text.DateFormat,
1621− if (dayKey.isEmpty()) return ""
1622− val epochDay = dayKey.toLongOrNull() ?: return ""
1623− val date = java.time.LocalDate.ofEpochDay(epochDay)
1625− date == today -> todayLabel
1626− date == today.minusDays(1) -> yesterdayLabel
1627− else -> dateFmt.format(java.util.Date(ts))
1632− * A centered day divider in the message list. Renders nothing for an empty label
1633− * (the no-timestamp case) so un-timestamped messages don't get a stray blank divider.
1636−private fun DateSeparator(label: String) {
1637− if (label.isBlank()) return
1639− modifier = Modifier.fillMaxWidth(),
1640− horizontalArrangement = Arrangement.Center,
1643− color = MaterialTheme.colorScheme.surfaceVariant,
1644− shape = MaterialTheme.shapes.small,
1648− style = MaterialTheme.typography.labelSmall,
1649− color = MaterialTheme.colorScheme.onSurfaceVariant,
1650− modifier = Modifier.padding(horizontal = 12.dp, vertical = 4.dp),