import * as React from "react";import type { ContextMenuItem } from "@t3tools/contracts";import type { SidebarProjectSortOrder, SidebarThreadSortOrder } from "@t3tools/contracts/settings";import {  getThreadSortTimestamp,  sortThreads,  toSortableTimestamp,  type ThreadSortInput,} from "../lib/threadSort";import type { SidebarThreadSummary, Thread } from "../types";import { cn } from "../lib/utils";import { isLatestTurnSettled } from "../session-logic";import { resolveServerBackedAppStageLabel } from "../branding.logic"; export const THREAD_SELECTION_SAFE_SELECTOR = "[data-thread-item], [data-thread-selection-safe]";export const THREAD_JUMP_HINT_SHOW_DELAY_MS = 100;// Visible sidebar rows are prewarmed into the thread-detail cache so opening a// nearby thread usually reuses an already-hot subscription.export const SIDEBAR_THREAD_PREWARM_LIMIT = 10;export type SidebarNewThreadEnvMode = "local" | "worktree";type SidebarProject = {  id: string;  title: string;  createdAt?: string | undefined;  updatedAt?: string | undefined;}; type ScopedSidebarProject = SidebarProject & {  environmentId: string;}; type ScopedSidebarThread = ThreadSortInput & {  environmentId: string;  projectId: string;  archivedAt: string | null;}; export type ThreadTraversalDirection = "previous" | "next"; export async function archiveSelectedThreadEntries<  TEntry extends { readonly threadKey: string },  TResult extends { readonly _tag: "Success" | "Failure" },>(input: {  entries: readonly TEntry[];  archive: (entry: TEntry, onArchived: () => void) => Promise<TResult>;}): Promise<{  archivedThreadKeys: readonly string[];  mutationFailure: Extract<TResult, { readonly _tag: "Failure" }> | null;  followupFailures: readonly Extract<TResult, { readonly _tag: "Failure" }>[];}> {  const archivedThreadKeys: string[] = [];  const followupFailures: Extract<TResult, { readonly _tag: "Failure" }>[] = [];   for (const entry of input.entries) {    let didArchive = false;    const result = await input.archive(entry, () => {      didArchive = true;    });    if (didArchive || result._tag === "Success") {      archivedThreadKeys.push(entry.threadKey);    }    if (result._tag === "Success") continue;    const failure = result as Extract<TResult, { readonly _tag: "Failure" }>;    if (didArchive) {      followupFailures.push(failure);      continue;    }    return { archivedThreadKeys, mutationFailure: failure, followupFailures };  }   return { archivedThreadKeys, mutationFailure: null, followupFailures };} export function buildMultiSelectThreadContextMenuItems(input: {  count: number;  hasRunningThread: boolean;}): readonly ContextMenuItem<"mark-unread" | "archive" | "delete">[] {  return [    { id: "mark-unread", label: `Mark unread (${input.count})` },    {      id: "archive",      label: `Archive (${input.count})`,      disabled: input.hasRunningThread,    },    { id: "delete", label: `Delete (${input.count})`, destructive: true },  ];} export interface ThreadStatusPill {  label:    | "Working"    | "Connecting"    | "Completed"    | "Pending Approval"    | "Awaiting Input"    | "Plan Ready";  colorClass: string;  dotClass: string;  pulse: boolean;} const THREAD_STATUS_PRIORITY: Record<ThreadStatusPill["label"], number> = {  "Pending Approval": 5,  "Awaiting Input": 4,  Working: 3,  Connecting: 3,  "Plan Ready": 2,  Completed: 1,}; type ThreadStatusInput = Pick<  SidebarThreadSummary,  | "hasActionableProposedPlan"  | "hasPendingApprovals"  | "hasPendingUserInput"  | "interactionMode"  | "latestTurn"  | "session"> & {  lastVisitedAt?: string | undefined;}; export interface ThreadJumpHintVisibilityController {  sync: (shouldShow: boolean) => void;  dispose: () => void;} export function resolveSidebarStageBadgeLabel(input: {  primaryServerVersion: string | null | undefined;  fallbackStageLabel: string;}): string {  return resolveServerBackedAppStageLabel(input);} export function createThreadJumpHintVisibilityController(input: {  delayMs: number;  onVisibilityChange: (visible: boolean) => void;  setTimeoutFn?: typeof globalThis.setTimeout;  clearTimeoutFn?: typeof globalThis.clearTimeout;}): ThreadJumpHintVisibilityController {  const setTimeoutFn = input.setTimeoutFn ?? globalThis.setTimeout;  const clearTimeoutFn = input.clearTimeoutFn ?? globalThis.clearTimeout;  let isVisible = false;  let timeoutId: NodeJS.Timeout | null = null;   const clearPendingShow = () => {    if (timeoutId === null) {      return;    }    clearTimeoutFn(timeoutId);    timeoutId = null;  };   return {    sync: (shouldShow) => {      if (!shouldShow) {        clearPendingShow();        if (isVisible) {          isVisible = false;          input.onVisibilityChange(false);        }        return;      }       if (isVisible || timeoutId !== null) {        return;      }       timeoutId = setTimeoutFn(() => {        timeoutId = null;        isVisible = true;        input.onVisibilityChange(true);      }, input.delayMs);    },    dispose: () => {      clearPendingShow();    },  };} export function useThreadJumpHintVisibility(): {  showThreadJumpHints: boolean;  updateThreadJumpHintsVisibility: (shouldShow: boolean) => void;} {  const [showThreadJumpHints, setShowThreadJumpHints] = React.useState(false);  const controllerRef = React.useRef<ThreadJumpHintVisibilityController | null>(null);   React.useEffect(() => {    const controller = createThreadJumpHintVisibilityController({      delayMs: THREAD_JUMP_HINT_SHOW_DELAY_MS,      onVisibilityChange: (visible) => {        setShowThreadJumpHints(visible);      },      setTimeoutFn: window.setTimeout.bind(window),      clearTimeoutFn: window.clearTimeout.bind(window),    });    controllerRef.current = controller;     return () => {      controller.dispose();      controllerRef.current = null;    };  }, []);   const updateThreadJumpHintsVisibility = React.useCallback((shouldShow: boolean) => {    controllerRef.current?.sync(shouldShow);  }, []);   return {    showThreadJumpHints,    updateThreadJumpHintsVisibility,  };} export function hasUnseenCompletion(thread: ThreadStatusInput): boolean {  if (!thread.latestTurn?.completedAt) return false;  const completedAt = Date.parse(thread.latestTurn.completedAt);  if (Number.isNaN(completedAt)) return false;  if (!thread.lastVisitedAt) return false;   const lastVisitedAt = Date.parse(thread.lastVisitedAt);  if (Number.isNaN(lastVisitedAt)) return true;  return completedAt > lastVisitedAt;} export function shouldClearThreadSelectionOnMouseDown(target: HTMLElement | null): boolean {  if (target === null) return true;  return !target.closest(THREAD_SELECTION_SAFE_SELECTOR);} // A double-click dispatches two `click` events before `dblclick`: the first has// `detail === 1`, the second `detail === 2`. The second click must not run the// row's single-click navigation, otherwise double-click-to-rename would also// navigate. `MouseEvent.detail` is 0 for synthetic/keyboard activations, which// still count as a normal single activation.export function isTrailingDoubleClick(detail: number): boolean {  return detail > 1;} export function resolveSidebarNewThreadEnvMode(input: {  requestedEnvMode?: SidebarNewThreadEnvMode;  defaultEnvMode: SidebarNewThreadEnvMode;}): SidebarNewThreadEnvMode {  return input.requestedEnvMode ?? input.defaultEnvMode;} export function resolveSidebarNewThreadSeedContext(input: {  projectId: string;  defaultEnvMode: SidebarNewThreadEnvMode;  activeThread?: {    projectId: string;    branch: string | null;    worktreePath: string | null;  } | null;  activeDraftThread?: {    projectId: string;    branch: string | null;    worktreePath: string | null;    envMode: SidebarNewThreadEnvMode;    startFromOrigin: boolean;  } | null;}): {  branch?: string | null;  worktreePath?: string | null;  envMode: SidebarNewThreadEnvMode;  startFromOrigin?: boolean;} {  if (input.defaultEnvMode === "worktree") {    return {      envMode: "worktree",    };  }   if (input.activeDraftThread?.projectId === input.projectId) {    return {      branch: input.activeDraftThread.branch,      worktreePath: input.activeDraftThread.worktreePath,      envMode: input.activeDraftThread.envMode,      startFromOrigin: input.activeDraftThread.startFromOrigin,    };  }   if (input.activeThread?.projectId === input.projectId) {    return {      branch: input.activeThread.branch,      worktreePath: input.activeThread.worktreePath,      envMode: input.activeThread.worktreePath ? "worktree" : "local",    };  }   return {    envMode: input.defaultEnvMode,  };} export function orderItemsByPreferredIds<TItem, TId>(input: {  items: readonly TItem[];  preferredIds: readonly TId[];  getId: (item: TItem) => TId;  getPreferenceIds?: (item: TItem) => readonly TId[];}): TItem[] {  const { getId, getPreferenceIds, items, preferredIds } = input;  if (preferredIds.length === 0) {    return [...items];  }   const indexesByPreferenceId = new Map<TId, number[]>();  for (const [index, item] of items.entries()) {    const preferenceIds = getPreferenceIds?.(item) ?? [getId(item)];    for (const preferenceId of new Set(preferenceIds)) {      const indexes = indexesByPreferenceId.get(preferenceId);      if (indexes) {        indexes.push(index);      } else {        indexesByPreferenceId.set(preferenceId, [index]);      }    }  }   const emittedIndexes = new Set<number>();  const ordered = preferredIds.flatMap((id) => {    const index = indexesByPreferenceId      .get(id)      ?.find((candidate) => !emittedIndexes.has(candidate));    if (index === undefined) {      return [];    }    emittedIndexes.add(index);    return [items[index]!];  });  const remaining = items.filter((_, index) => !emittedIndexes.has(index));  return [...ordered, ...remaining];} export function getVisibleSidebarThreadIds<TThreadId>(  renderedProjects: readonly {    shouldShowThreadPanel?: boolean;    renderedThreadIds: readonly TThreadId[];  }[],): TThreadId[] {  return renderedProjects.flatMap((renderedProject) =>    renderedProject.shouldShowThreadPanel === false ? [] : renderedProject.renderedThreadIds,  );} export function getSidebarThreadIdsToPrewarm<TThreadId>(  visibleThreadIds: readonly TThreadId[],  limit = SIDEBAR_THREAD_PREWARM_LIMIT,): TThreadId[] {  return visibleThreadIds.slice(0, Math.max(0, limit));} export function resolveAdjacentThreadId<T>(input: {  threadIds: readonly T[];  currentThreadId: T | null;  direction: ThreadTraversalDirection;}): T | null {  const { currentThreadId, direction, threadIds } = input;   if (threadIds.length === 0) {    return null;  }   if (currentThreadId === null) {    return direction === "previous" ? (threadIds.at(-1) ?? null) : (threadIds[0] ?? null);  }   const currentIndex = threadIds.indexOf(currentThreadId);  if (currentIndex === -1) {    return null;  }   if (direction === "previous") {    return currentIndex > 0 ? (threadIds[currentIndex - 1] ?? null) : null;  }   return currentIndex < threadIds.length - 1 ? (threadIds[currentIndex + 1] ?? null) : null;} export function isContextMenuPointerDown(input: {  button: number;  ctrlKey: boolean;  isMac: boolean;}): boolean {  if (input.button === 2) return true;  return input.isMac && input.button === 0 && input.ctrlKey;} export function resolveThreadRowClassName(input: {  isActive: boolean;  isSelected: boolean;}): string {  const baseClassName =    "h-6 w-full translate-x-0 cursor-pointer justify-start px-2 text-left select-none focus-visible:ring-1 focus-visible:ring-inset focus-visible:ring-ring sm:h-7";   if (input.isSelected && input.isActive) {    return cn(      baseClassName,      "bg-primary/22 text-foreground font-medium hover:bg-primary/26 hover:text-foreground dark:bg-primary/30 dark:hover:bg-primary/36",    );  }   if (input.isSelected) {    return cn(      baseClassName,      "bg-primary/15 text-foreground hover:bg-primary/19 hover:text-foreground dark:bg-primary/22 dark:hover:bg-primary/28",    );  }   if (input.isActive) {    return cn(      baseClassName,      "bg-accent/85 text-foreground font-medium hover:bg-accent hover:text-foreground dark:bg-accent/55 dark:hover:bg-accent/70",    );  }   return cn(baseClassName, "text-muted-foreground hover:bg-accent hover:text-foreground");} export function resolveThreadStatusPill(input: {  thread: ThreadStatusInput;}): ThreadStatusPill | null {  const { thread } = input;   if (thread.hasPendingApprovals) {    return {      label: "Pending Approval",      colorClass: "text-amber-600 dark:text-amber-300/90",      dotClass: "bg-amber-500 dark:bg-amber-300/90",      pulse: false,    };  }   if (thread.hasPendingUserInput) {    return {      label: "Awaiting Input",      colorClass: "text-indigo-600 dark:text-indigo-300/90",      dotClass: "bg-indigo-500 dark:bg-indigo-300/90",      pulse: false,    };  }   if (thread.session?.status === "running") {    return {      label: "Working",      colorClass: "text-sky-600 dark:text-sky-300/80",      dotClass: "bg-sky-500 dark:bg-sky-300/80",      pulse: true,    };  }   if (thread.session?.status === "starting") {    return {      label: "Connecting",      colorClass: "text-sky-600 dark:text-sky-300/80",      dotClass: "bg-sky-500 dark:bg-sky-300/80",      pulse: true,    };  }   const hasPlanReadyPrompt =    !thread.hasPendingUserInput &&    thread.interactionMode === "plan" &&    isLatestTurnSettled(thread.latestTurn, thread.session) &&    thread.hasActionableProposedPlan;  if (hasPlanReadyPrompt) {    return {      label: "Plan Ready",      colorClass: "text-violet-600 dark:text-violet-300/90",      dotClass: "bg-violet-500 dark:bg-violet-300/90",      pulse: false,    };  }   if (hasUnseenCompletion(thread)) {    return {      label: "Completed",      colorClass: "text-emerald-600 dark:text-emerald-300/90",      dotClass: "bg-emerald-500 dark:bg-emerald-300/90",      pulse: false,    };  }   return null;} export function resolveProjectStatusIndicator(  statuses: ReadonlyArray<ThreadStatusPill | null>,): ThreadStatusPill | null {  let highestPriorityStatus: ThreadStatusPill | null = null;   for (const status of statuses) {    if (status === null) continue;    if (      highestPriorityStatus === null ||      THREAD_STATUS_PRIORITY[status.label] > THREAD_STATUS_PRIORITY[highestPriorityStatus.label]    ) {      highestPriorityStatus = status;    }  }

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