import type { EnvironmentThreadShell } from "@t3tools/client-runtime/state/shell";import { useAtomValue } from "@effect/atom-react";import type {  EnvironmentId,  MessageId,  ModelSelection,  ProviderInteractionMode,  RuntimeMode,  ServerConfig as T3ServerConfig,} from "@t3tools/contracts";import { StackActions, useFocusEffect, useNavigation } from "@react-navigation/native";import type { ReactNode } from "react";import {  memo,  useCallback,  useEffect,  useLayoutEffect,  useMemo,  useRef,  useState,  type RefObject,} from "react";import { ActivityIndicator, Platform, Pressable, View, type ViewStyle } from "react-native";import { FilePreviewModal, type FilePreviewSource } from "../../components/FilePreviewModal";import {  composerAttachmentUploadBlockReason,  composerAttachmentUploadsAtom,} from "../../state/composer-attachment-uploads";import Animated, {  FadeIn,  FadeInDown,  FadeOut,  FadeOutDown,  LinearTransition,  ReduceMotion,  useAnimatedStyle,  useSharedValue,  withTiming,} from "react-native-reanimated";import { useUniwindTheme } from "../../lib/useUniwindTheme";import { armAgentAwarenessLiveActivityForLocalWork } from "../agent-awareness/remoteRegistration";import { scopedThreadKey } from "../../lib/scopedEntities"; import { AppText as Text } from "../../components/AppText";import { ComposerAttachmentButton } from "../../components/ComposerAttachmentButton";import {  ComposerAttachmentStrip,  ComposerAttachmentThumbnail,} from "../../components/ComposerAttachmentStrip";import { VideoPreviewModal, type VideoPreviewSource } from "../../components/VideoPreviewModal";import { GlassSurface } from "../../components/GlassSurface";import { ComposerEditor, type ComposerEditorHandle } from "../../components/ComposerEditor";import {  ComposerActionButton,  ComposerInlineControl,  ComposerToolbarRow,} from "../../components/ComposerToolbar";import { ProviderIcon } from "../../components/ProviderIcon";import type {  DraftComposerAttachment,  DraftComposerFileAttachment,} from "../../lib/composerImages";import {  buildModelOptions,  groupByProvider,  isModelSelectionUnavailable,} from "../../lib/modelOptions";import { useScaledTextRole } from "../settings/appearance/useScaledTextRole";import type { RemoteClientConnectionState } from "../../lib/connection";import { resolveProviderOptionDescriptors } from "../../lib/providerOptions";import { ComposerCommandPopover } from "./ComposerCommandPopover";import { useComposerCommandMenu } from "./use-composer-command-menu";import {  ComposerDictationCancelAction,  ComposerDictationDraftContent,  ComposerDictationPrimaryAction,  ComposerDictationStartAction,  ComposerDictationStatus,  ComposerDictationToolbar,} from "../voice-input/ComposerDictationControl";import { useVoiceInputController } from "../voice-input/useVoiceInputController";import { resolveVoiceComposerPresentation } from "../voice-input/voiceInputPresentation";import {  type ExistingThreadSettingsRouteSession,  useExistingThreadSettingsRoutePresentation,} from "./ThreadSettingsSheet";import {  useThreadSettingsSheetPresentation,  type NavigationWithFinishTransitioning,} from "./use-thread-settings-sheet-presentation"; /** * Height of the collapsed composer (pill + vertical padding, excluding safe-area inset). * Exported so the parent can compute feed overlap / content insets. */export const COMPOSER_COLLAPSED_CHROME = 60; /** * Height of the expanded composer (card + toolbar + vertical padding, excluding safe-area inset). * Used by the parent to compute the larger feed bottom inset when the composer is focused. */export const COMPOSER_EXPANDED_CHROME = 156; export interface ThreadComposerProps {  readonly draftMessage: string;  readonly draftAttachments: ReadonlyArray<DraftComposerAttachment>;  readonly placeholder: string;  readonly contentMaxWidth?: number;  readonly bottomInset?: number;  readonly connectionState: RemoteClientConnectionState;  readonly connectionError: string | null;  readonly environmentLabel: string | null;  /**   * Message sync phase for the selected thread (drives the status pill):   * "loading" = first fetch, nothing to show yet; "syncing" = cached messages   * are on screen while they reconcile with the server.   */  readonly threadSyncPhase?: "loading" | "syncing" | null;  readonly selectedThread: EnvironmentThreadShell;  readonly hasCompactableConversation: boolean;  readonly serverConfig: T3ServerConfig | null;  readonly queueCount: number;  readonly activeThreadBusy: boolean;  readonly canStopThread: boolean;  readonly environmentId: EnvironmentId;  readonly projectCwd: string | null;  readonly editorRef?: RefObject<ComposerEditorHandle | null>;  readonly onChangeDraftMessage: (value: string) => void;  readonly onPickDraftMedia: () => Promise<void>;  readonly onPickDraftFiles: () => Promise<void>;  readonly onNativePasteImages: (uris: ReadonlyArray<string>) => Promise<void>;  readonly onRemoveDraftImage: (imageId: string) => void;  readonly onStopThread: () => void;  readonly onSendMessage: () => Promise<MessageId | null>;  readonly onUpdateModelSelection: (modelSelection: ModelSelection) => void;  readonly onUpdateRuntimeMode: (runtimeMode: RuntimeMode) => void;  readonly onUpdateInteractionMode: (interactionMode: ProviderInteractionMode) => void;  readonly onReconnectEnvironment: () => void;  readonly onExpandedChange?: (expanded: boolean) => void;  /** Fires on editor focus/blur; hosts use it to vet stale keyboard state. */  readonly onEditorFocusChange?: (focused: boolean) => void;} /** * The pill / card container — renders with Expo's native GlassView on supported * iOS 26+ devices and keeps the existing opaque fallback elsewhere. * Exported so NewTaskDraftScreen can render the same composer chrome. */// The bottom-anchored dock position and clipped surface height use the same// transition so the card grows upward without exposing its final-size content.// Android gets NO layout transition: the composer rides the keyboard via// KeyboardStickyView (frame-synced to the IME), and a time-based morph// running alongside that translate reads as jitter. Snapping the layout and// letting the keyboard-synced slide be the only motion looks native there.export const COMPOSER_TRANSITION_DURATION_MS = 220;export const COMPOSER_LAYOUT_TRANSITION =  Platform.OS === "android"    ? undefined    : LinearTransition.duration(COMPOSER_TRANSITION_DURATION_MS).reduceMotion(ReduceMotion.System); const COMPOSER_ATTACHMENT_ENTERING =  Platform.OS === "android"    ? FadeIn.duration(160)    : FadeIn.delay(COMPOSER_TRANSITION_DURATION_MS).duration(160).reduceMotion(ReduceMotion.System); const AnimatedGlassSurface = Animated.createAnimatedComponent(GlassSurface); export function ComposerSurface(props: {  readonly children: ReactNode;  readonly style: ViewStyle;  /** Morphs between the compact and expanded composer layouts. */  readonly animateLayout?: boolean;}) {  const targetBorderRadius =    typeof props.style.borderRadius === "number" ? props.style.borderRadius : 0;  const animatedBorderRadius = useSharedValue(targetBorderRadius);  const shouldAnimate = props.animateLayout !== false && Platform.OS !== "android";  useLayoutEffect(() => {    animatedBorderRadius.value = shouldAnimate      ? withTiming(targetBorderRadius, {          duration: COMPOSER_TRANSITION_DURATION_MS,          reduceMotion: ReduceMotion.System,        })      : targetBorderRadius;  }, [animatedBorderRadius, shouldAnimate, targetBorderRadius]);  const animatedShapeStyle = useAnimatedStyle(() => ({    borderRadius: animatedBorderRadius.value,  }));  const layoutTransition = shouldAnimate ? COMPOSER_LAYOUT_TRANSITION : undefined;   // Each native frame follows the same transition. Animating only the outer  // clip leaves the glass and content at their final height on the first frame.  return (    <Animated.View      className="shadow-[0_6px_28px] shadow-adaptive-black-a15-a35"      layout={layoutTransition}      style={[        animatedShapeStyle,        {          overflow: "hidden",          // Android versions before 9 do not support outset box shadows.          elevation: Platform.OS === "android" && Platform.Version < 28 ? 10 : undefined,        },      ]}    >      <AnimatedGlassSurface        chrome="none"        fallbackClassName="border border-border bg-card-translucent"        glassEffectStyle="regular"        // The composer is a passive material containing interactive controls.        // Keep native glass out of the interactive content's layout path.        pointerEvents="none"        tintColor="transparent"        layout={layoutTransition}        style={[{ position: "absolute", inset: 0 }, animatedShapeStyle]}      >        {null}      </AnimatedGlassSurface>      <Animated.View        collapsable={false}        layout={layoutTransition}        style={[props.style, animatedShapeStyle]}      >        {props.children}      </Animated.View>    </Animated.View>  );} type ComposerStatusPillState = {  readonly kind: "unavailable" | "reconnecting";  readonly label: string;}; function composerConnectionStatus(input: {  readonly connectionError: string | null;  readonly connectionState: RemoteClientConnectionState;  readonly environmentLabel: string | null;}): ComposerStatusPillState | null {  const environmentLabel = input.environmentLabel ?? "Environment";   switch (input.connectionState) {    case "connecting":    case "reconnecting":      return {        kind: "reconnecting",        label:          input.connectionError === null            ? `Reconnecting to ${environmentLabel}...`            : `Failed to connect. Retrying ${environmentLabel}...`,      };    case "offline":      return { kind: "unavailable", label: "You are offline" };    case "error":      return {        kind: "unavailable",        label: input.connectionError          ? `Failed to connect to ${environmentLabel}: ${input.connectionError}`          : `Failed to connect to ${environmentLabel}`,      };    case "available":      return { kind: "unavailable", label: `${environmentLabel} is not connected` };    case "connected":      return null;  }} const ComposerConnectionStatusPill = memo(function ComposerConnectionStatusPill(props: {  readonly onPress: () => void;  readonly status: ComposerStatusPillState;}) {  const isReconnecting = props.status.kind === "reconnecting";  return (    <Animated.View      className="absolute inset-x-0 bottom-full items-center pb-2"      entering={FadeInDown.duration(180)}      exiting={FadeOutDown.duration(140)}      pointerEvents="box-none"    >      <Pressable        accessibilityRole="button"        onPress={props.onPress}        className="max-w-full flex-row items-center gap-2 rounded-full bg-card px-3 py-2 shadow-sm active:opacity-70"      >        {isReconnecting ? (          <ActivityIndicator size="small" colorClassName={"accent-icon-muted"} />        ) : (          <View className="h-2 w-2 rounded-full bg-red-500" />        )}        <Text          className="max-w-[260px] text-sm font-t3-bold leading-snug text-foreground"          numberOfLines={1}        >          {props.status.label}        </Text>      </Pressable>    </Animated.View>  );}); export const ThreadComposer = memo(function ThreadComposer(props: ThreadComposerProps) {  const navigation = useNavigation();  const foregroundColor = useUniwindTheme()["--color-foreground"];  const bodyText = useScaledTextRole("body");  const fallbackInputRef = useRef<ComposerEditorHandle>(null);  const inputRef = props.editorRef ?? fallbackInputRef;  const [isFocused, setIsFocused] = useState(false);  const settingsSheetPresentation = useThreadSettingsSheetPresentation({    editorRef: inputRef,    isEditorFocused: isFocused,  });  const settingsRoutePresentation = useExistingThreadSettingsRoutePresentation();  const settingsRoutePresentedRef = useRef(false);  const wasExpandedBeforePreviewRef = useRef(false);  const inFlightThreadIdsRef = useRef(new Set<string>());  const { onExpandedChange } = props;   const [previewFile, setPreviewFile] = useState<FilePreviewSource | null>(null);  const [previewVideo, setPreviewVideo] = useState<VideoPreviewSource | null>(null);  const hasContent = props.draftMessage.trim().length > 0 || props.draftAttachments.length > 0;  const showStopAction = !hasContent && props.canStopThread;   const sendLabel =    props.connectionState !== "connected" || props.queueCount > 0 ? "Queue" : "Send";  const currentModelSelection = props.selectedThread.modelSelection;  const currentRuntimeMode = props.selectedThread.runtimeMode;  const modelUnavailable =    props.connectionState === "connected" &&    isModelSelectionUnavailable(props.serverConfig, currentModelSelection);  const connectionStatus = composerConnectionStatus({    connectionError: props.connectionError,    connectionState: props.connectionState,    environmentLabel: props.environmentLabel,  });  const selectedProviderStatus = useMemo(() => {    if (!props.serverConfig) return null;    return (      props.serverConfig.providers.find(        (p) => p.instanceId === props.selectedThread.modelSelection.instanceId,      ) ?? null    );  }, [props.serverConfig, props.selectedThread.modelSelection.instanceId]);  const composerOwnerKey = scopedThreadKey(props.environmentId, props.selectedThread.id);   const composerMenu = useComposerCommandMenu({    draftMessage: props.draftMessage,    ownerKey: composerOwnerKey,    environmentId: props.environmentId,    projectCwd: props.projectCwd,    selectedProviderStatus,    hasThread: true,    hasCompactableConversation: props.hasCompactableConversation,    onChangeDraftMessage: props.onChangeDraftMessage,    onUpdateInteractionMode:      selectedProviderStatus?.showInteractionModeToggle === false        ? undefined        : props.onUpdateInteractionMode,  });  const voiceInput = useVoiceInputController({    ownerKey: composerOwnerKey,    draftMessage: props.draftMessage,    selection: composerMenu.selection,    onChangeDraftMessage: props.onChangeDraftMessage,    onChangeSelection: composerMenu.onSelectionChange,  });  const voicePresentation = resolveVoiceComposerPresentation(    voiceInput.state,    voiceInput.elapsedSeconds,  );  const isVoiceInputPresented = voicePresentation.statusLabel !== null;  // An open draft stays visible; only a collapsed composer becomes a voice strip.  const isExpanded = isFocused || settingsSheetPresentation.isActive;  const showsCompactDictation = isVoiceInputPresented && !isExpanded;  const isToolbarVisible = isExpanded || isVoiceInputPresented;  const uploadStates = useAtomValue(composerAttachmentUploadsAtom);  const attachmentBlockReason = composerAttachmentUploadBlockReason({    environmentId: props.environmentId,    attachments: props.draftAttachments,    connected: props.connectionState === "connected",    serverConfig: props.serverConfig,    states: uploadStates,  });  const canSend =    hasContent &&    !voiceInput.blocksSubmission &&    attachmentBlockReason === null &&    !modelUnavailable;   // Keep the feed inset aligned with the card or compact dictation strip.  useEffect(() => {    onExpandedChange?.(isExpanded);  }, [isExpanded, onExpandedChange]);   const onPressPreview = useCallback(    (source: FilePreviewSource) => {      wasExpandedBeforePreviewRef.current = isFocused;      setPreviewVideo(null);      setPreviewFile((current) => current ?? source);    },    [isFocused],  );   const closePreview = useCallback(() => {    setPreviewFile(null);    setPreviewVideo(null);    if (wasExpandedBeforePreviewRef.current) {      setTimeout(() => {        if (navigation.isFocused()) inputRef.current?.focus();      }, 100);    }  }, [inputRef, navigation]);   const onPressVideo = useCallback(    (attachment: DraftComposerFileAttachment, sourceIdentifier: string) => {      wasExpandedBeforePreviewRef.current = isFocused;      setPreviewFile(null);      setPreviewVideo((current) => current ?? { type: "local", attachment, sourceIdentifier });    },    [isFocused],  );   const onEditorFocusChange = props.onEditorFocusChange;  const handleFocus = useCallback(() => {    setIsFocused(true);    onExpandedChange?.(true);    onEditorFocusChange?.(true);  }, [onEditorFocusChange, onExpandedChange]);   const handleBlur = useCallback(() => {    setIsFocused(false);    if (!settingsSheetPresentation.isActive) {      onExpandedChange?.(false);    }    onEditorFocusChange?.(false);  }, [onEditorFocusChange, onExpandedChange, settingsSheetPresentation.isActive]);  const { onSendMessage } = props;   const handleSend = useCallback(async () => {    if (voiceInput.blocksSubmission) return;    const threadKey = scopedThreadKey(props.environmentId, props.selectedThread.id);    if (inFlightThreadIdsRef.current.has(threadKey)) return;    inFlightThreadIdsRef.current.add(threadKey);    try {      const messageId = await onSendMessage();      if (messageId === null) {        return;      }      // Sending a prompt starts agent work: arm the lock-screen card while the      // app is foregrounded and the activity token can be registered. Armed      // after the send so its preference read and native Activity start don't      // contend with the queued-message feedback on the tap frame.      armAgentAwarenessLiveActivityForLocalWork({        environmentId: props.environmentId,        threadTitle: props.selectedThread.title,        projectTitle: props.environmentLabel ?? "T3 Code",      });    } finally {      inFlightThreadIdsRef.current.delete(threadKey);    }  }, [    onSendMessage,    props.environmentId,    props.environmentLabel,    props.selectedThread.id,    props.selectedThread.title,    voiceInput.blocksSubmission,  ]);   // ── Model menu ───────────────────────────────────────────  const modelOptions = useMemo(    () => buildModelOptions(props.serverConfig, currentModelSelection),    [props.serverConfig, currentModelSelection],  );  const providerGroups = useMemo(() => groupByProvider(modelOptions), [modelOptions]);  // An existing thread is bound to its harness: sessions can't move between  // provider instances, so the picker only offers the thread's own group.  const threadProviderGroups = useMemo(    () => providerGroups.filter((group) => group.providerKey === currentModelSelection.instanceId),    [providerGroups, currentModelSelection.instanceId],  );  const currentModelOption =    modelOptions.find(      (option) =>        option.selection.instanceId === currentModelSelection.instanceId &&        option.selection.model === currentModelSelection.model,    ) ?? null;  const providerOptionDescriptors = useMemo(    () =>      resolveProviderOptionDescriptors({        capabilities: currentModelOption?.capabilities,        selections: currentModelSelection.options,      }),    [currentModelOption?.capabilities, currentModelSelection.options],  );  const settingsOwnerId = composerOwnerKey;  const settingsRouteSession = useMemo<ExistingThreadSettingsRouteSession>(    () => ({      ownerId: settingsOwnerId,      environmentId: props.environmentId,      providerInstanceId: currentModelSelection.instanceId,

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