import type { SidebarProjectSortOrder, SidebarThreadSortOrder } from "../appSettings";import type { Thread } from "../types";import { cn } from "../lib/utils";import {  findLatestProposedPlan,  hasActionableProposedPlan,  isLatestTurnSettled,} from "../session-logic"; export const THREAD_SELECTION_SAFE_SELECTOR = "[data-thread-item], [data-thread-selection-safe]";export type SidebarNewThreadEnvMode = "local" | "worktree";type SidebarProject = {  id: string;  name: string;  createdAt?: string | undefined;  updatedAt?: string | undefined;};type SidebarThreadSortInput = Pick<Thread, "createdAt" | "updatedAt" | "messages">; 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<  Thread,  "interactionMode" | "latestTurn" | "lastVisitedAt" | "proposedPlans" | "session">; 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 true;   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);} export function resolveSidebarNewThreadEnvMode(input: {  requestedEnvMode?: SidebarNewThreadEnvMode;  defaultEnvMode: SidebarNewThreadEnvMode;}): SidebarNewThreadEnvMode {  return input.requestedEnvMode ?? input.defaultEnvMode;} export function resolveThreadRowClassName(input: {  isActive: boolean;  isSelected: boolean;}): string {  const baseClassName =    "h-7 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";   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;  hasPendingApprovals: boolean;  hasPendingUserInput: boolean;}): ThreadStatusPill | null {  const { hasPendingApprovals, hasPendingUserInput, thread } = input;   if (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 (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 === "connecting") {    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 =    !hasPendingUserInput &&    thread.interactionMode === "plan" &&    isLatestTurnSettled(thread.latestTurn, thread.session) &&    hasActionableProposedPlan(      findLatestProposedPlan(thread.proposedPlans, thread.latestTurn?.turnId ?? null),    );  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;    }  }   return highestPriorityStatus;} export function getVisibleThreadsForProject(input: {  threads: readonly Thread[];  activeThreadId: Thread["id"] | undefined;  isThreadListExpanded: boolean;  previewLimit: number;}): {  hasHiddenThreads: boolean;  visibleThreads: Thread[];} {  const { activeThreadId, isThreadListExpanded, previewLimit, threads } = input;  const hasHiddenThreads = threads.length > previewLimit;   if (!hasHiddenThreads || isThreadListExpanded) {    return {      hasHiddenThreads,      visibleThreads: [...threads],    };  }   const previewThreads = threads.slice(0, previewLimit);  if (!activeThreadId || previewThreads.some((thread) => thread.id === activeThreadId)) {    return {      hasHiddenThreads: true,      visibleThreads: previewThreads,    };  }   const activeThread = threads.find((thread) => thread.id === activeThreadId);  if (!activeThread) {    return {      hasHiddenThreads: true,      visibleThreads: previewThreads,    };  }   const visibleThreadIds = new Set([...previewThreads, activeThread].map((thread) => thread.id));   return {    hasHiddenThreads: true,    visibleThreads: threads.filter((thread) => visibleThreadIds.has(thread.id)),  };} function toSortableTimestamp(iso: string | undefined): number | null {  if (!iso) return null;  const ms = Date.parse(iso);  return Number.isFinite(ms) ? ms : null;} function getLatestUserMessageTimestamp(thread: SidebarThreadSortInput): number {  let latestUserMessageTimestamp: number | null = null;   for (const message of thread.messages) {    if (message.role !== "user") continue;    const messageTimestamp = toSortableTimestamp(message.createdAt);    if (messageTimestamp === null) continue;    latestUserMessageTimestamp =      latestUserMessageTimestamp === null        ? messageTimestamp        : Math.max(latestUserMessageTimestamp, messageTimestamp);  }   if (latestUserMessageTimestamp !== null) {    return latestUserMessageTimestamp;  }   return toSortableTimestamp(thread.updatedAt ?? thread.createdAt) ?? Number.NEGATIVE_INFINITY;} function getThreadSortTimestamp(  thread: SidebarThreadSortInput,  sortOrder: SidebarThreadSortOrder | Exclude<SidebarProjectSortOrder, "manual">,): number {  if (sortOrder === "created_at") {    return toSortableTimestamp(thread.createdAt) ?? Number.NEGATIVE_INFINITY;  }  return getLatestUserMessageTimestamp(thread);} export function sortThreadsForSidebar<  T extends Pick<Thread, "id" | "createdAt" | "updatedAt" | "messages">,>(threads: readonly T[], sortOrder: SidebarThreadSortOrder): T[] {  return threads.toSorted((left, right) => {    const rightTimestamp = getThreadSortTimestamp(right, sortOrder);    const leftTimestamp = getThreadSortTimestamp(left, sortOrder);    const byTimestamp =      rightTimestamp === leftTimestamp ? 0 : rightTimestamp > leftTimestamp ? 1 : -1;    if (byTimestamp !== 0) return byTimestamp;    return right.id.localeCompare(left.id);  });} export function getFallbackThreadIdAfterDelete<  T extends Pick<Thread, "id" | "projectId" | "createdAt" | "updatedAt" | "messages">,>(input: {  threads: readonly T[];  deletedThreadId: T["id"];  sortOrder: SidebarThreadSortOrder;  deletedThreadIds?: ReadonlySet<T["id"]>;}): T["id"] | null {  const { deletedThreadId, deletedThreadIds, sortOrder, threads } = input;  const deletedThread = threads.find((thread) => thread.id === deletedThreadId);  if (!deletedThread) {    return null;  }   return (    sortThreadsForSidebar(      threads.filter(        (thread) =>          thread.projectId === deletedThread.projectId &&          thread.id !== deletedThreadId &&          !deletedThreadIds?.has(thread.id),      ),      sortOrder,    )[0]?.id ?? null  );} export function getProjectSortTimestamp(  project: SidebarProject,  projectThreads: readonly SidebarThreadSortInput[],  sortOrder: Exclude<SidebarProjectSortOrder, "manual">,): number {  if (projectThreads.length > 0) {    return projectThreads.reduce(      (latest, thread) => Math.max(latest, getThreadSortTimestamp(thread, sortOrder)),      Number.NEGATIVE_INFINITY,    );  }   if (sortOrder === "created_at") {    return toSortableTimestamp(project.createdAt) ?? Number.NEGATIVE_INFINITY;  }  return toSortableTimestamp(project.updatedAt ?? project.createdAt) ?? Number.NEGATIVE_INFINITY;} export function sortProjectsForSidebar<TProject extends SidebarProject, TThread extends Thread>(  projects: readonly TProject[],  threads: readonly TThread[],  sortOrder: SidebarProjectSortOrder,): TProject[] {  if (sortOrder === "manual") {    return [...projects];  }   const threadsByProjectId = new Map<string, TThread[]>();  for (const thread of threads) {    const existing = threadsByProjectId.get(thread.projectId) ?? [];    existing.push(thread);    threadsByProjectId.set(thread.projectId, existing);  }   return [...projects].toSorted((left, right) => {    const rightTimestamp = getProjectSortTimestamp(      right,      threadsByProjectId.get(right.id) ?? [],      sortOrder,    );    const leftTimestamp = getProjectSortTimestamp(      left,      threadsByProjectId.get(left.id) ?? [],      sortOrder,    );    const byTimestamp =      rightTimestamp === leftTimestamp ? 0 : rightTimestamp > leftTimestamp ? 1 : -1;    if (byTimestamp !== 0) return byTimestamp;    return left.name.localeCompare(right.name) || left.id.localeCompare(right.id);  });}