/* eslint-disable react-refresh/only-export-components -- Testable pure helpers currently share this legacy app module. */

import {
  type FormEvent,
  type UIEvent,
  useCallback,
  useEffect,
  useLayoutEffect,
  useRef,
  useState,
} from 'react';

import {
  type GameCreationAppCommandDescriptor,
  type GameCreationAppManifest,
  type GameCreationAppPreviewState,
  type GameCreationAppPreviewStatus,
} from '../../../packages/shared/src/contracts/gameCreationApp';
import {
  AGENT_CHAT_SCROLL_BOTTOM_THRESHOLD,
  CONVERSATION_INITIAL_VISIBLE_COUNT,
  CONVERSATION_VISIBLE_STEP,
  createLocalProjectId,
  seedManifest,
} from './app/constants';
import { useEscapeToClose } from './app/dialogs';
import { claimInitialTurnForPage } from './app/initialTurnClaims';
import { resolveTauriInvoke } from './app/tauri';
import type {
  AgentRuntimeResult,
  AgentRuntimeState,
  ChatMessage,
  DesignAgentInput,
  DesignClarificationRequest,
  DesignEvent,
  DesignView,
  InitLocalProjectResult,
  LauncherImportedAttachment,
  LocalConversationResult,
  LocalGameProjectRevisionStatus,
  LocalPreviewResult,
  LocalPreviewStatus,
  LocalProjectExportPackageResult,
  LocalProjectFileResult,
  LocalProjectKind,
  PendingUiConfirmation,
  ProjectPermissionPolicyView,
  TauriInvoke,
} from './app/types';
import { GameDistributionPublishPanel } from './components/game-distribution/GameDistributionPublishPanel';
import {
  agentConversationId,
  agentRuntimeStateFromResult,
  createAgentChatRunId,
  createDefaultChatMessages,
  isAgentFinalizationMessageId,
  isMissingAgentRuntimeResumeCommandError,
  isRuntimeConfigMissingError,
  mergeAgentRuntimeStateIntoMap,
  projectProfessionalAgentLabel,
  taskRowsFromManifest,
} from './features/agent-runtime';
import {
  isTransientProjectOpenMessage,
  latestVisibleItems,
  type ProjectChatComponentProps,
  readInitialProjectPath,
  type WorkspaceLauncherProps,
  writeRecentWorkspace,
} from './features/app-shell/model';
import { WorkspaceLauncherShell } from './features/app-shell/WorkspaceLauncher';
import {
  projectAgentRuntimeSummaries,
  summarizeAgentRunCompletionForChat,
} from './features/project-summary/agentPresentation';
import {
  isAbsoluteProjectPath,
  projectPathHasControlCharacter,
} from './features/project-summary/projectSummary';
import { parseAgentRunTrace } from './features/project-workspace/agentRunTrace';
import { importDesignFiles } from './features/project-workspace/importDesignFiles';
import { parseRememberInput } from './features/project-workspace/memoryCommands';
import {
  isAgentTraceFilePath,
  needsInitializedChatProject,
  resolveChatProjectPath,
} from './features/project-workspace/projectCommandPolicy';
import type { ResourceReferenceInputHandle } from './features/project-workspace/ResourceReferenceInput';
import {
  directCodexContentToLegacyContentDto,
  hasMeaningfulDirectCodexContent,
  RESOURCE_REFERENCE_INSERT_EVENT,
  type ResourceReferenceInsertEventDetail,
} from './features/project-workspace/resourceReferences';
import { RuntimeConfigDialog } from './features/runtime-config/RuntimeConfigDialog';
import { readGamePublishAvailability } from './services/gameDistributionPublish';
import {
  setAgcPluginProjectPath,
  startAvailableAgcEditorPlugins,
} from './services/pluginHost';
import {
  canSubscribeTauriEvents,
  subscribeTauriEvent,
} from './services/tauriEventSubscription';
import type { HomeCreationType } from './view/home';
import {
  type ProjectAgentResultSummary,
  type ProjectAgentRuntimeSummary,
} from './view/project-development';
import { DIRECT_CODEX_CONVERSATION_MESSAGE_ID_PREFIX } from './view/project-development/chat/conversation/directCodexConversation';
import {
  directCodexAttachmentContentParts,
  toDirectCodexTurnAttachments,
} from './view/project-development/chat/conversation/directCodexTurnAttachments';
import {
  type DirectProjectChatHandle,
  DirectProjectChatView,
  type DirectProjectInitialTurn,
} from './view/project-development/chat/DirectProjectChatView';
import { PlanningChatView } from './view/project-development/planning/PlanningChatView';
import type { ProjectManifestSnapshotMetadata } from './view/project-development/projectResourceLiveUpdateModel';

function isPersistableDirectCodexConversationMessage(message: ChatMessage) {
  if (!message.runtimeOwned) {
    return false;
  }
  const messageId = message.messageId?.trim() ?? '';
  const roleSuffix = `:${message.role}`;
  if (
    !messageId.startsWith(DIRECT_CODEX_CONVERSATION_MESSAGE_ID_PREFIX) ||
    !messageId.endsWith(roleSuffix)
  ) {
    return false;
  }
  const turnId = messageId.slice(
    DIRECT_CODEX_CONVERSATION_MESSAGE_ID_PREFIX.length,
    -roleSuffix.length,
  );
  return /^[a-z0-9][a-z0-9-]{5,159}$/iu.test(turnId);
}

/**
 * 历史回读与"尚未落盘的运行时消息"合并。
 *
 * 初始需求是**乐观插入**到 messages 的（latch 命中后先插一条 user 消息，再发起回合），
 * 而历史回读在 replace 分支里是无条件整体替换 —— 只要回读晚于乐观插入，那条用户消息
 * 就会被冲掉（界面上看不到初始需求，但回合其实已经跑起来了）。
 * 这里把当前 messages 里"运行时拥有、且回读结果里没有"的消息保留在末尾（它们是最新的）。
 */

export { AuthenticatedClient } from './app/AuthenticatedClient';
export {
  deriveAgentStatusCards,
  summarizeAgentAudit,
  summarizeAgentRunTrace,
} from './features/project-summary/agentPresentation';
export { isAbsoluteProjectPath } from './features/project-summary/projectSummary';
export {
  needsInitializedChatProject,
  parseRememberInput,
  resolveChatProjectPath,
};

export function WorkspaceLauncher(props: WorkspaceLauncherProps) {
  return <WorkspaceLauncherShell {...props} ProjectChat={App} />;
}

type AppProps = {
  initialProjectPath?: string;
  initialProjectManifest?: GameCreationAppManifest;
  initialProjectKind?: LocalProjectKind;
  planningStartMode?: boolean;
  activeVersionId?: ProjectChatComponentProps['activeVersionId'];
  initialPlanningPrompt?: string;
  initialPlanningPromptClaimScope?: string;
  initialCreationType?: HomeCreationType | null;
  initialAttachments?: LauncherImportedAttachment[];
  onDesignFilesImportingChange?: ProjectChatComponentProps['onDesignFilesImportingChange'];
  playRequest?: ProjectChatComponentProps['playRequest'];
  onPlayRequestHandled?: ProjectChatComponentProps['onPlayRequestHandled'];
  onManifestChange?: (
    projectPath: string,
    manifest: GameCreationAppManifest,
    metadata?: ProjectManifestSnapshotMetadata,
  ) => void;
  onPreviewChange?: (preview: GameCreationAppPreviewState | null) => void;
  onAgentRuntimeSummariesChange?: (
    summaries: ProjectAgentRuntimeSummary[],
  ) => void;
  onAgentResultsChange?: (results: ProjectAgentResultSummary[]) => void;
};

/**
 * 工作台壳里由立项策划链路接管的提交入参。
 *
 * DirectProject 的回合入参（`@` 引用、附件、权限确认重跑）归聊天容器自己的
 * `DirectProjectTurnInput`，不再从这里穿过。
 */
type ExecuteChatAgentReplyInput = {
  prompt: string;
  clientTurnId?: string;
};

export function App({
  initialProjectPath: initialProjectPathOverride = '',
  initialProjectManifest,
  initialProjectKind = 'web',
  planningStartMode = false,
  activeVersionId = null,
  initialPlanningPrompt = '',
  initialPlanningPromptClaimScope = '',
  initialCreationType = null,
  initialAttachments = [],
  onDesignFilesImportingChange,
  playRequest = null,
  onPlayRequestHandled,
  onManifestChange,
  onPreviewChange,
  onAgentRuntimeSummariesChange,
  onAgentResultsChange,
}: AppProps = {}) {
  const [designAgentActive, setDesignAgentActive] = useState(planningStartMode);
  const designAgentActiveRef = useRef(planningStartMode);
  designAgentActiveRef.current = designAgentActive;
  const [designAgentView, setDesignAgentView] = useState<DesignView | null>(
    null,
  );
  const designAgentLaneRef = useRef(planningStartMode);
  const designAgentTurnRef = useRef<{
    projectPath: string;
    clientTurnId: string;
  } | null>(null);
  const designAgentEventSubscriptionReadyRef = useRef<Promise<void> | null>(
    null,
  );
  const designAgentEventSubscriptionResolveRef = useRef<(() => void) | null>(
    null,
  );
  /**
   * 本轮策划回合的思考归属。
   *
   * 与 `designAgentTurnRef` 分开：那个记录回合本身，回合结束就清空；这个只用来判定
   * 「这条 reasoning 事件是不是本轮的」，回合结束后仍保留，最后一条思考不会在视图
   * 落盘前的空隙里被丢掉。切项目时随其它聊天状态一起清空。
   */
  const designAgentReasoningTurnRef = useRef<{
    projectPath: string;
    clientTurnId: string;
  } | null>(null);
  // 项目开发工作台的普通项目固定使用 DirectProject，立项策划项目走策划聊天；两条
  // 链路各自独立，不通过兼容分支互相承载。
  const directProjectMode = !designAgentActive;
  const [initialProjectPath] = useState(
    () => initialProjectPathOverride || readInitialProjectPath(),
  );
  const eagerProject = Boolean(initialProjectPath);
  const [projectPath, setProjectPath] = useState(initialProjectPath);
  const [localProject, setLocalProject] =
    useState<InitLocalProjectResult | null>(() =>
      eagerProject
        ? {
            projectPath: initialProjectPath,
            manifestPath: `${initialProjectPath.replace(/[\\/]+$/, '')}/.agent/manifest.json`,
            manifest: initialProjectManifest ?? seedManifest,
          }
        : null,
    );
  const localProjectPathRef = useRef<string | null>(null);

  useEffect(() => {
    const nextProjectPath = localProject?.projectPath ?? null;
    const previousProjectPath = localProjectPathRef.current;
    localProjectPathRef.current = nextProjectPath;
    // 未绑定项目时无需触发插件宿主；这也避免启动空首页时产生无意义的 Tauri 调用。
    if (!nextProjectPath && !previousProjectPath) return;
    // 工程类型只决定「有哪几个编辑器插件可用」，不影响要不要尝试拉起：可用性由插件宿主
    // 自己判（装配好的编辑器插件各自启动），未就绪时给出统一文案。
    let active = true;
    void setAgcPluginProjectPath(nextProjectPath)
      .then(async () => {
        if (active && nextProjectPath) {
          await startAvailableAgcEditorPlugins(() => active);
        }
      })
      .catch((error) => {
        if (!active || !nextProjectPath) {
          return;
        }
        setWorkspaceStatus(
          `编辑器插件未就绪：${
            error instanceof Error ? error.message : String(error)
          }`,
        );
      });
    return () => {
      active = false;
      if (nextProjectPath || previousProjectPath) {
        void setAgcPluginProjectPath(null).catch(() => undefined);
      }
      localProjectPathRef.current = null;
    };
  }, [localProject?.projectPath]);

  const manifestRefreshMountedRef = useRef(true);
  const manifestRefreshStatesRef = useRef(
    new Map<
      string,
      {
        pending: boolean;
        inFlight: Promise<void> | null;
      }
    >(),
  );
  const [manifest, setManifest] = useState<GameCreationAppManifest>(
    initialProjectManifest ?? seedManifest,
  );
  const manifestRef = useRef(manifest);
  manifestRef.current = manifest;
  /**
   * 跟随工作台壳的清单快照。
   *
   * 资源命令（改标签 / 改类型 / 重命名 / 删素材）由资源画布写入，写入后壳重读一次
   * manifest、按 CAS 归并进 `currentProjectContext`，再把归并结果继续以这个 prop 传下来。
   * 但它是 `useState` 的**初值**：壳里换了新清单不会再进来，于是聊天侧（`@` 选择器的
   * 标签统计与候选、`@` 候选菜单）一直用挂载时那份旧清单 —— 用户改完标签，画布已经
   * 更新，聊天侧却还是旧标签。
   *
   * 这里把壳那份快照补进聊天侧状态，判据只有两条：同一项目、内容确实变了
   * （按内容的短路是必要的：聊天侧自己的写入会被壳原样回传，只比身份会让两边
   * 无意义地互相推一轮）。壳那份快照始终由磁盘重读 + CAS 归并得到，因此不会把
   * 聊天侧带到更旧的版本上。
   */
  useEffect(() => {
    const snapshot = initialProjectManifest;
    const current = manifestRef.current;
    if (!snapshot || snapshot === current) return;
    if (snapshot.projectId !== current.projectId) return;
    if (JSON.stringify(snapshot) === JSON.stringify(current)) return;
    setManifest(snapshot);
  }, [initialProjectManifest]);
  const initialPlanningPromptLatchRef = useRef({
    projectPath: initialProjectPath,
    prompt: initialPlanningPrompt.trim(),
    claimScope: initialPlanningPromptClaimScope,
    creationType: initialCreationType,
    attachments: toDirectCodexTurnAttachments(initialAttachments),
  });
  const handledPlayRequestRef = useRef<string | null>(null);

  function updateClientPreview(
    nextPreview: LocalPreviewResult | null,
    status: GameCreationAppPreviewStatus = nextPreview ? 'running' : 'stopped',
  ) {
    onPreviewChange?.(
      nextPreview
        ? {
            status,
            url: nextPreview.url,
            port: nextPreview.port,
          }
        : { status },
    );
  }

  const chatComposerRef = useRef<ResourceReferenceInputHandle | null>(null);
  const [chatAgentBusy, setChatAgentBusy] = useState(false);
  // 发布到游戏广场：试玩包导出结果与面板开关由工作台壳持有，聊天容器只负责触发。
  const [publishPackageResult, setPublishPackageResult] =
    useState<LocalProjectExportPackageResult | null>(null);
  const [publishPanelOpen, setPublishPanelOpen] = useState(false);
  // 发布灰度：只有命中的账号才把「发布到游戏广场」入口交给聊天头；读取失败按不开放处理。
  const [gamePublishAllowed, setGamePublishAllowed] = useState(false);
  const [projectChatError, setProjectChatError] = useState('');
  const [designAgentTransientReply, setDesignAgentTransientReplyVisible] =
    useState('');
  const designAgentTransientReplyTargetRef = useRef('');
  const designAgentVisibleReplyRef = useRef('');
  const designAgentPendingViewRef = useRef<{
    clientTurnId: string;
    projectPath: string;
    view: DesignView;
  } | null>(null);
  const [designAgentReasoning, setDesignAgentReasoning] = useState('');

  function setDesignAgentTransientReplyTarget(next: string) {
    designAgentTransientReplyTargetRef.current = next;
    if (!next) {
      designAgentVisibleReplyRef.current = '';
      setDesignAgentTransientReplyVisible('');
    }
  }

  function designAgentEventSubscriptionReady() {
    // 业务动作只读取当前订阅代次；清理与下一次 effect 建立之间不能创建
    // 一个没有订阅 effect 接管的悬挂 promise。
    return designAgentEventSubscriptionReadyRef.current ?? Promise.resolve();
  }

  function createDesignAgentEventSubscriptionReady() {
    if (!designAgentEventSubscriptionReadyRef.current) {
      designAgentEventSubscriptionReadyRef.current = new Promise<void>(
        (resolve) => {
          designAgentEventSubscriptionResolveRef.current = resolve;
        },
      );
    }
    return designAgentEventSubscriptionReadyRef.current;
  }

  function resolveDesignAgentEventSubscriptionReady() {
    designAgentEventSubscriptionResolveRef.current?.();
    designAgentEventSubscriptionResolveRef.current = null;
  }

  useEffect(() => {
    const timer = window.setInterval(() => {
      const target = designAgentTransientReplyTargetRef.current;
      setDesignAgentTransientReplyVisible((current) => {
        if (!target) {
          designAgentVisibleReplyRef.current = '';
          return '';
        }
        const prefix = target.startsWith(current) ? current : '';
        if (prefix === target) {
          designAgentVisibleReplyRef.current = target;
          return target;
        }
        const remaining = target.length - prefix.length;
        const step = remaining > 160 ? 4 : remaining > 48 ? 2 : 1;
        const next = target.slice(0, prefix.length + step);
        designAgentVisibleReplyRef.current = next;
        return next;
      });
    }, 50);
    return () => window.clearInterval(timer);
  }, []);

  /**
   * 策划 Agent 的实时事件流：本轮流式正文、思考过程和回合中途的视图都靠它推给界面。
   *
   * 订阅建立是异步的，而回合由一个 invoke 发起；`designAgentEventSubscriptionReady()`
   * 让回合等监听器挂好再开始，避免开头几个事件丢掉。事件只认当前项目；有在跑的回合时
   * 还要认本轮 `clientTurnId`，迟到的上一轮事件不会画到这一轮上。
   */
  useEffect(() => {
    const ready = createDesignAgentEventSubscriptionReady();
    if (!canSubscribeTauriEvents() || !designAgentActive) {
      resolveDesignAgentEventSubscriptionReady();
      return () => {
        if (designAgentEventSubscriptionReadyRef.current === ready) {
          designAgentEventSubscriptionReadyRef.current = null;
          createDesignAgentEventSubscriptionReady();
        }
      };
    }
    let cleanup: (() => void) | null = null;
    let disposed = false;
    void subscribeTauriEvent<DesignEvent>('design-agent-update', (event) => {
      const payload = event.payload;
      const tracked = designAgentTurnRef.current;
      if (
        payload.projectPath !== localProjectPathRef.current ||
        (tracked && payload.clientTurnId !== tracked.clientTurnId)
      ) {
        return;
      }
      if (
        (payload.kind === 'text' || payload.kind === 'tool') &&
        payload.text
      ) {
        setDesignAgentTransientReplyTarget(payload.text);
      }
      if (payload.reasoningText != null) {
        const reasoningTurn = designAgentReasoningTurnRef.current;
        if (
          reasoningTurn?.projectPath === payload.projectPath &&
          reasoningTurn.clientTurnId === payload.clientTurnId
        ) {
          setDesignAgentReasoning(payload.reasoningText);
        }
      }
      if (payload.view) {
        applyDesignAgentViewAfterTransient(
          payload.view,
          payload.projectPath,
          payload.clientTurnId,
        );
      }
    })
      .then((unlisten) => {
        resolveDesignAgentEventSubscriptionReady();
        if (disposed) {
          unlisten();
          return;
        }
        cleanup = unlisten;
      })
      .catch(() => {
        resolveDesignAgentEventSubscriptionReady();
      });
    return () => {
      disposed = true;
      cleanup?.();
      resolveDesignAgentEventSubscriptionReady();
      if (designAgentEventSubscriptionReadyRef.current === ready) {
        designAgentEventSubscriptionReadyRef.current = null;
        createDesignAgentEventSubscriptionReady();
      }
    };
    // 订阅只跟着「是否走策划 Agent」这条链路；回调里的项目/回合判据都走 refs，
    // 把它们写进依赖会在每轮回复时重订事件。
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [designAgentActive]);

  function designMessagesToChat(view: DesignView): ChatMessage[] {
    const reasoningByMessageId = new Map<string, string[]>();
    for (const entry of view.reasoningEntries ?? []) {
      if (!entry.messageId) {
        continue;
      }
      const texts = reasoningByMessageId.get(entry.messageId) ?? [];
      texts.push(entry.text);
      reasoningByMessageId.set(entry.messageId, texts);
    }
    // 持久策划消息没有发送时间，不能把读取时刻显示成历史发送时间。
    const messages: ChatMessage[] = view.messages
      .filter((message) => message.text.trim())
      .map((message) => ({
        role: message.role === 'user' ? 'user' : 'assistant',
        text: message.text,
        runtimeOwned: true,
        messageId: message.id,
        reasoningText: reasoningByMessageId.get(message.id)?.join('\n\n'),
      }));
    const initialPrompt = initialPlanningPromptLatchRef.current.prompt;
    if (
      initialPrompt &&
      !messages.some(
        (message) => message.role === 'user' && message.text === initialPrompt,
      )
    ) {
      messages.unshift({
        role: 'user',
        text: initialPrompt,
        runtimeOwned: true,
      });
    }
    return messages;
  }

  function applyDesignView(view: DesignView, projectPath: string) {
    designAgentLaneRef.current = true;
    setDesignAgentView(view);
    designAgentActiveRef.current = true;
    setDesignAgentActive(true);
    setProjectChatError(view.session.lastError ?? '');
    setChatAgentBusy(view.running);
    const conversation = designMessagesToChat(view);
    setMessages(conversation);
    savedConversationProjectPathRef.current = projectPath;
    savedConversationCountRef.current = conversation.length;
    latestMessagesRef.current = conversation;
  }

  function commitDesignAgentView(view: DesignView, projectPath: string) {
    const pendingTurnId = designAgentPendingViewRef.current?.clientTurnId;
    designAgentPendingViewRef.current = null;
    applyDesignView(view, projectPath);
    setDesignAgentReasoning('');
    setDesignAgentTransientReplyTarget('');
    if (designAgentTurnRef.current?.clientTurnId === pendingTurnId) {
      designAgentTurnRef.current = null;
    }
  }

  function applyDesignAgentViewAfterTransient(
    view: DesignView,
    projectPath: string,
    clientTurnId: string,
  ) {
    let target = designAgentTransientReplyTargetRef.current;
    const tracked = designAgentTurnRef.current;
    if (!target.trim() && !view.running) {
      const latestAssistantText = [...view.messages]
        .reverse()
        .find((message) => message.role !== 'user' && message.text.trim())
        ?.text.trim();
      if (latestAssistantText) {
        setDesignAgentTransientReplyTarget(latestAssistantText);
        target = latestAssistantText;
      }
    }
    if (
      !view.running &&
      tracked?.clientTurnId === clientTurnId &&
      target.trim() &&
      designAgentVisibleReplyRef.current !== target
    ) {
      designAgentPendingViewRef.current = {
        clientTurnId,
        projectPath,
        view,
      };
      return;
    }
    commitDesignAgentView(view, projectPath);
  }

  useEffect(() => {
    const timer = window.setInterval(() => {
      const pending = designAgentPendingViewRef.current;
      if (!pending) {
        return;
      }
      const target = designAgentTransientReplyTargetRef.current;
      if (target && designAgentVisibleReplyRef.current !== target) {
        return;
      }
      commitDesignAgentView(pending.view, pending.projectPath);
    }, 50);
    return () => window.clearInterval(timer);
    // 收尾定时器只需注册一次；它读取 refs，避免随每次渲染重建。
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, []);

  async function hydrateDesignAgentSession(nextProjectPath: string) {
    const invoke = resolveTauriInvoke();
    if (!invoke || !nextProjectPath.trim()) {
      return null;
    }
    const view = await invoke<DesignView | null>(
      'hydrate_design_agent_session',
      { projectPath: nextProjectPath },
    );
    if (localProjectPathRef.current !== nextProjectPath) {
      return null;
    }
    if (!view) {
      return null;
    }
    applyDesignView(view, nextProjectPath);
    return view;
  }

  async function executeDesignAgentTurn(
    nextProjectPath: string,
    input: DesignAgentInput,
    clientTurnId = createAgentChatRunId('design-agent-turn'),
  ) {
    const invoke = resolveTauriInvoke();
    if (!invoke) {
      setProjectChatError('需要在 Tauri App 内运行。');
      return;
    }
    designAgentTurnRef.current = {
      projectPath: nextProjectPath,
      clientTurnId,
    };
    designAgentReasoningTurnRef.current = {
      projectPath: nextProjectPath,
      clientTurnId,
    };
    designAgentPendingViewRef.current = null;
    await designAgentEventSubscriptionReady();
    setChatAgentBusy(true);
    setProjectChatError('');
    setDesignAgentTransientReplyTarget('');
    setDesignAgentReasoning('');
    try {
      const view = await invoke<DesignView>('continue_design_agent_session', {
        projectPath: nextProjectPath,
        clientTurnId,
        input,
      });
      if (localProjectPathRef.current !== nextProjectPath) {
        return;
      }
      applyDesignAgentViewAfterTransient(view, nextProjectPath, clientTurnId);
    } catch (error) {
      if (localProjectPathRef.current !== nextProjectPath) {
        return;
      }
      const message = error instanceof Error ? error.message : String(error);
      if (isRuntimeConfigMissingError(message)) {
        requestRuntimeConfigOpen();
      }
      setProjectChatError(message);
    } finally {
      if (!designAgentPendingViewRef.current) {
        designAgentTurnRef.current = null;
        setDesignAgentTransientReplyTarget('');
      }
      setChatAgentBusy(false);
    }
  }

  const [chatFilesImporting, setChatFilesImporting] = useState(false);
  const [chatFileImportNotice, setChatFileImportNotice] = useState('');
  const planningChatMessagesRef = useRef<HTMLDivElement | null>(null);
  const planningChatShouldFollowLatestRef = useRef(true);
  const directProjectChatRef = useRef<DirectProjectChatHandle | null>(null);
  const [agentRuntimeById, setAgentRuntimeById] = useState<
    Record<string, AgentRuntimeState | undefined>
  >({});
  const agentRuntimeByIdRef = useRef(agentRuntimeById);
  agentRuntimeByIdRef.current = agentRuntimeById;
  const [professionalAgentResultsById, setProfessionalAgentResultsById] =
    useState<Record<string, ProjectAgentResultSummary>>({});
  const [workspaceStatus, setWorkspaceStatus] = useState(
    eagerProject ? `已打开：${initialProjectPath}` : '请选择工作区',
  );
  const [messages, setMessages] = useState<ChatMessage[]>(
    createDefaultChatMessages,
  );
  const [conversationVisibleCount, setConversationVisibleCount] = useState(
    CONVERSATION_INITIAL_VISIBLE_COUNT,
  );
  const [pendingUiConfirmation, setPendingUiConfirmation] =
    useState<PendingUiConfirmation | null>(null);
  const [pendingNonEmptyProjectCreate, setPendingNonEmptyProjectCreate] =
    useState<{
      projectPath: string;
      announceToChat: boolean;
    } | null>(null);
  const [conversationWriteVersion, setConversationWriteVersion] = useState(0);
  const savedConversationCountRef = useRef(
    eagerProject ? createDefaultChatMessages().length : 0,
  );
  const savedConversationProjectPathRef = useRef<string | null>(
    eagerProject ? initialProjectPath : null,
  );
  const projectConversationWriteConfirmedRef = useRef<string | null>(null);
  const projectConversationWriteCancelledRef = useRef<{
    projectPath: string;
    messageCount: number;
  } | null>(null);
  const latestMessagesRef = useRef<ChatMessage[]>([]);
  const conversationWriteInFlightRef = useRef(false);
  const projectScopeVersionRef = useRef(0);

  const refreshManifest = useCallback(
    (nextProjectPath = localProjectPathRef.current ?? ''): Promise<void> => {
      const invoke = resolveTauriInvoke();
      if (!invoke || !nextProjectPath) {
        return Promise.resolve();
      }

      const refreshStates = manifestRefreshStatesRef.current;
      let refreshState = refreshStates.get(nextProjectPath);
      if (!refreshState) {
        refreshState = { pending: false, inFlight: null };
        refreshStates.set(nextProjectPath, refreshState);
      }
      refreshState.pending = true;
      if (refreshState.inFlight) {
        return refreshState.inFlight;
      }

      const activeRefreshState = refreshState;
      const refreshPromise = (async () => {
        try {
          while (activeRefreshState.pending) {
            activeRefreshState.pending = false;
            const projectScopeVersion = projectScopeVersionRef.current;
            try {
              const nextManifest = await invoke<GameCreationAppManifest>(
                'get_local_game_manifest',
                { projectPath: nextProjectPath },
              );
              if (
                manifestRefreshMountedRef.current &&
                localProjectPathRef.current === nextProjectPath &&
                projectScopeVersionRef.current === projectScopeVersion
              ) {
                setManifest(nextManifest);
              }
            } catch {
              // Dev-only convenience; command errors are surfaced by the action that triggered them.
            }
            if (
              !manifestRefreshMountedRef.current ||
              localProjectPathRef.current !== nextProjectPath ||
              projectScopeVersionRef.current !== projectScopeVersion
            ) {
              activeRefreshState.pending = false;
            }
          }
        } finally {
          activeRefreshState.inFlight = null;
          if (!activeRefreshState.pending) {
            refreshStates.delete(nextProjectPath);
          }
        }
      })();
      activeRefreshState.inFlight = refreshPromise;
      return refreshPromise;
    },
    [],
  );

  useEffect(() => {
    const refreshStates = manifestRefreshStatesRef.current;
    manifestRefreshMountedRef.current = true;
    return () => {
      manifestRefreshMountedRef.current = false;
      refreshStates.clear();
    };
  }, []);
  const executeChatAgentReplyRef = useRef<
    (input: ExecuteChatAgentReplyInput) => Promise<void>
  >(async () => undefined);
  const agentRuntimeResumeProjectPathRef = useRef<string | null>(null);
  const initialProjectOpenedRef = useRef(false);
  const pendingUiConfirmationActionRef = useRef<(() => void) | null>(null);
  const executeRunLocalRef = useRef<(announceToChat: boolean) => void>(
    () => undefined,
  );
  const [runtimeConfigOpen, setRuntimeConfigOpen] = useState(false);

  function requestRuntimeConfigOpen() {
    setRuntimeConfigOpen(true);
  }

  useEscapeToClose(cancelUiCommandConfirmation, pendingUiConfirmation !== null);
  useEscapeToClose(
    cancelProjectCreateInNonEmptyFolder,
    pendingNonEmptyProjectCreate !== null,
  );

  useEffect(() => {
    if (
      pendingUiConfirmation?.projectPath &&
      pendingUiConfirmation.projectPath !==
        resolveCurrentUiConfirmationProjectPath()
    ) {
      cancelUiCommandConfirmation();
    }
    // The callbacks intentionally read the latest project refs.
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [localProject?.projectPath, projectPath]);

  useEffect(() => {
    if (!initialProjectPath || initialProjectOpenedRef.current) {
      return;
    }
    initialProjectOpenedRef.current = true;
    if (!isAbsoluteProjectPath(initialProjectPath)) {
      setWorkspaceStatus('请提供工作区绝对路径');
      return;
    }
    if (projectPathHasControlCharacter(initialProjectPath)) {
      setWorkspaceStatus('工作区路径不能包含控制字符');
      return;
    }
    if (directProjectMode) {
      // This component is mounted inside the already-created project workbench.
      // Hydrate localProject before the first direct turn so the direct runtime
      // cannot silently create a second workspace.
      void openWorkspace(initialProjectPath, false, 'open', initialProjectKind);
      return;
    }
    localProjectPathRef.current = initialProjectPath;
    void loadProjectConversation(initialProjectPath).finally(() => {
      if (
        localProjectPathRef.current === initialProjectPath &&
        !planningStartMode
      ) {
        void refreshAgentRunTrace(initialProjectPath);
      }
    });
    // Initial project opening is guarded by initialProjectOpenedRef.
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [initialProjectPath]);

  useLayoutEffect(() => {
    if (!planningChatShouldFollowLatestRef.current) {
      return;
    }
    const messageList = planningChatMessagesRef.current;
    if (messageList) {
      messageList.scrollTop = messageList.scrollHeight;
    }
  }, [
    messages,
    projectChatError,
    designAgentTransientReply,
    designAgentReasoning,
    designAgentView,
    pendingUiConfirmation,
    chatFileImportNotice,
  ]);

  useEffect(() => {
    latestMessagesRef.current = messages;
    const invoke = resolveTauriInvoke();
    const nextProjectPath = localProject?.projectPath;
    if (!invoke || !nextProjectPath) {
      return;
    }
    if (savedConversationProjectPathRef.current !== nextProjectPath) {
      savedConversationProjectPathRef.current = nextProjectPath;
      savedConversationCountRef.current = 0;
      projectConversationWriteConfirmedRef.current = null;
      projectConversationWriteCancelledRef.current = null;
    }
    // DirectProject history is written by Rust from raw app-server items.
    // The browser only renders that projection and must not append chat rows.
    if (directProjectMode) {
      // `messages` is only an optimistic UI projection in Direct mode; it is
      // intentionally not proof of durability. Rust owns the raw response
      // history, so this effect must not route these rows through the generic
      // browser conversation writer.
      savedConversationCountRef.current = messages.length;
      return;
    }
    const start = savedConversationCountRef.current;
    const pendingMessages = messages.slice(start);
    if (pendingMessages.length === 0) {
      return;
    }
    if (
      pendingMessages.every(
        (message) =>
          (message.runtimeOwned &&
            !isPersistableDirectCodexConversationMessage(message)) ||
          isTransientProjectOpenMessage(message, nextProjectPath),
      )
    ) {
      savedConversationCountRef.current = messages.length;
      return;
    }
    if (conversationWriteInFlightRef.current) {
      return;
    }
    if (pendingUiConfirmation) {
      return;
    }
    if (
      projectConversationWriteCancelledRef.current?.projectPath ===
        nextProjectPath &&
      projectConversationWriteCancelledRef.current.messageCount ===
        messages.length
    ) {
      return;
    }
    if (
      projectConversationWriteCancelledRef.current?.projectPath ===
        nextProjectPath &&
      projectConversationWriteCancelledRef.current.messageCount <
        messages.length
    ) {
      projectConversationWriteCancelledRef.current = null;
    }
    if (projectConversationWriteConfirmedRef.current !== nextProjectPath) {
      void invoke<ProjectPermissionPolicyView>(
        'read_project_permission_policy',
        { projectPath: nextProjectPath },
      )
        .then((policyView) => {
          if (
            !policyView.policy.confirmCommands.includes('conversation.write')
          ) {
            projectConversationWriteConfirmedRef.current = nextProjectPath;
            setConversationWriteVersion((current) => current + 1);
            return;
          }
          requestProjectPolicyConfirmation(
            'conversation.write',
            nextProjectPath,
            `写入 ${nextProjectPath} 的项目对话`,
            () => {
              projectConversationWriteConfirmedRef.current = nextProjectPath;
              setConversationWriteVersion((current) => current + 1);
            },
          );
          setWorkspaceStatus('等待确认保存项目对话');
        })
        .catch(() => {
          projectConversationWriteConfirmedRef.current = nextProjectPath;
          setConversationWriteVersion((current) => current + 1);
        });
      return;
    }
    conversationWriteInFlightRef.current = true;
    void (async () => {
      for (const [index, message] of pendingMessages.entries()) {
        if (
          message.runtimeOwned &&
          !isPersistableDirectCodexConversationMessage(message)
        ) {
          savedConversationCountRef.current = start + index + 1;
          continue;
        }
        if (isTransientProjectOpenMessage(message, nextProjectPath)) {
          savedConversationCountRef.current = start + index + 1;
          continue;
        }
        await invoke<LocalConversationResult>(
          'append_local_conversation_message',
          {
            projectPath: nextProjectPath,
            agentId: null,
            ...(message.messageId ? { messageId: message.messageId } : {}),
            message: {
              role: message.role === 'user' ? 'user' : 'assistant',
              content: message.text,
              agentId: null,
              ...(typeof message.updatedAt === 'number'
                ? { updatedAt: message.updatedAt }
                : {}),
            },
          },
        );
        savedConversationCountRef.current = start + index + 1;
      }
      setWorkspaceStatus((current) =>
        current.startsWith('项目对话保存失败') ||
        current === '等待确认保存项目对话'
          ? `已打开：${nextProjectPath}`
          : current,
      );
    })()
      .catch((error) => {
        savedConversationCountRef.current = Math.min(
          savedConversationCountRef.current,
          start,
        );
        setWorkspaceStatus(
          `项目对话保存失败：${
            error instanceof Error ? error.message : String(error)
          }`,
        );
      })
      .finally(() => {
        conversationWriteInFlightRef.current = false;
        if (
          savedConversationCountRef.current < latestMessagesRef.current.length
        ) {
          setConversationWriteVersion((current) => current + 1);
        }
      });
    // Writes are driven by message and confirmation state; the confirmation helper
    // intentionally observes the latest policy refs.
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [
    localProject?.projectPath,
    messages,
    conversationWriteVersion,
    pendingUiConfirmation,
    directProjectMode,
  ]);

  function appendLocalPermissionLog(
    projectPath: string | null,
    event:
      | 'permission.pending'
      | 'permission.confirm'
      | 'permission.cancel'
      | 'command.auto',
    commandId: GameCreationAppCommandDescriptor['id'],
  ) {
    const invoke = resolveTauriInvoke();
    if (!invoke || !projectPath) {
      return;
    }
    try {
      void Promise.resolve(
        invoke('append_local_permission_log', {
          projectPath,
          event,
          commandId,
        }),
      ).catch(() => undefined);
    } catch {
      // 权限日志只是审计旁路，写失败不能阻塞对话。
    }
  }

  function resolveUiPermissionLogProjectPath(
    commandId: GameCreationAppCommandDescriptor['id'],
  ) {
    if (commandId === 'project.create') {
      return null;
    }
    if (needsInitializedChatProject(commandId)) {
      return resolveChatProjectPath(localProject);
    }
    return projectPath;
  }

  function resolveCurrentUiConfirmationProjectPath() {
    const openedProjectPath = localProjectPathRef.current?.trim();
    if (openedProjectPath) {
      return openedProjectPath;
    }
    const draftProjectPath = projectPath.trim();
    if (
      !draftProjectPath ||
      !isAbsoluteProjectPath(draftProjectPath) ||
      projectPathHasControlCharacter(draftProjectPath)
    ) {
      return null;
    }
    return draftProjectPath;
  }

  function requestProjectPolicyConfirmation(
    commandId: GameCreationAppCommandDescriptor['id'],
    projectPath: string,
    detail: string,
    onConfirm: () => void,
  ) {
    pendingUiConfirmationActionRef.current = onConfirm;
    setPendingUiConfirmation({ commandId, detail, projectPath });
    appendLocalPermissionLog(projectPath, 'permission.pending', commandId);
  }

  function markProjectPolicyDenied(
    commandId: GameCreationAppCommandDescriptor['id'],
    message: string,
  ) {
    if (
      commandId.startsWith('project.') ||
      commandId === 'task.list' ||
      commandId.startsWith('preview.')
    ) {
      setWorkspaceStatus(message);
    }
  }

  async function queueProjectPolicyConfirmationIfNeeded(
    invoke: TauriInvoke,
    commandId: GameCreationAppCommandDescriptor['id'],
    projectPath: string,
    detail: string,
    readyMessage: string,
    onConfirm: () => void,
  ) {
    const policyView = await invoke<ProjectPermissionPolicyView>(
      'read_project_permission_policy',
      { projectPath },
    );
    if (policyView.policy.deniedCommands.includes(commandId)) {
      const message = `项目权限策略拒绝执行：${commandId}`;
      markProjectPolicyDenied(commandId, message);
      setMessages((current) => [
        ...current,
        { role: 'assistant', text: message },
      ]);
      return true;
    }
    if (!policyView.policy.confirmCommands.includes(commandId)) {
      return false;
    }
    requestProjectPolicyConfirmation(commandId, projectPath, detail, onConfirm);
    setMessages((current) => [
      ...current,
      { role: 'assistant', text: readyMessage },
    ]);
    return true;
  }

  async function denyPendingCommandIfNeeded(
    commandId: GameCreationAppCommandDescriptor['id'],
    projectPath: string | null,
  ) {
    const invoke = resolveTauriInvoke();
    if (!invoke || !projectPath) {
      return false;
    }
    try {
      const policyView = await invoke<ProjectPermissionPolicyView>(
        'read_project_permission_policy',
        { projectPath },
      );
      if (!policyView.policy.deniedCommands.includes(commandId)) {
        return false;
      }
      const message = `项目权限策略拒绝执行：${commandId}`;
      markProjectPolicyDenied(commandId, message);
      setMessages((current) => [
        ...current,
        { role: 'assistant', text: message },
      ]);
      return true;
    } catch {
      return false;
    }
  }

  useEffect(() => {
    let cancelled = false;
    void readGamePublishAvailability()
      .then((allowed) => {
        if (!cancelled) setGamePublishAllowed(allowed);
      })
      .catch(() => {
        if (!cancelled) setGamePublishAllowed(false);
      });
    return () => {
      cancelled = true;
    };
  }, [localProject?.projectPath]);

  /**
   * 导出试玩包并打开发布面板。
   *
   * 权限口径沿用本地命令：`project.export_package` 需要确认时先入队，确认后再导出；
   * 导出结果只留在壳里，发布面板关闭即丢弃，不写入项目。
   */
  async function requestGamePublish() {
    const invoke = resolveTauriInvoke();
    if (!invoke) {
      setWorkspaceStatus('需要在 Tauri App 内发布');
      return;
    }
    const nextProjectPath =
      resolveChatProjectPath(localProject) ?? projectPath.trim();
    if (!nextProjectPath) {
      setWorkspaceStatus('先打开一个项目再发布');
      return;
    }
    const runExport = async () => {
      try {
        const result = await invoke<LocalProjectExportPackageResult>(
          'export_local_project_package',
          { projectPath: nextProjectPath },
        );
        setWorkspaceStatus(`已导出本地试玩包：${result.packageRelativePath}`);
        setPublishPackageResult(result);
        setPublishPanelOpen(true);
        appendLocalPermissionLog(
          nextProjectPath,
          'command.auto',
          'project.export_package',
        );
      } catch (error) {
        setWorkspaceStatus(
          error instanceof Error ? error.message : String(error),
        );
      }
    };
    const queued = await queueProjectPolicyConfirmationIfNeeded(
      invoke,
      'project.export_package',
      nextProjectPath,
      '导出试玩包并打开「发布到游戏广场」面板。',
      '导出试玩包需要确认，确认后继续。',
      () => void runExport(),
    );
    if (!queued) {
      await runExport();
    }
  }

  async function confirmUiCommand() {
    const pending = pendingUiConfirmation;
    if (!pending) {
      return;
    }
    if (
      pending.projectPath &&
      pending.projectPath !== resolveCurrentUiConfirmationProjectPath()
    ) {
      cancelUiCommandConfirmation();
      return;
    }
    const permissionProjectPath =
      pending.projectPath ??
      resolveUiPermissionLogProjectPath(pending.commandId);
    if (
      await denyPendingCommandIfNeeded(pending.commandId, permissionProjectPath)
    ) {
      pendingUiConfirmationActionRef.current = null;
      setPendingUiConfirmation(null);
      return;
    }
    const action = pendingUiConfirmationActionRef.current;
    pendingUiConfirmationActionRef.current = null;
    setPendingUiConfirmation(null);
    appendLocalPermissionLog(
      permissionProjectPath,
      'permission.confirm',
      pending.commandId,
    );
    action?.();
  }

  function cancelUiCommandConfirmation() {
    const pending = pendingUiConfirmation;
    if (!pending) {
      return;
    }
    if (pending.commandId === 'conversation.write') {
      const nextProjectPath = resolveChatProjectPath(localProject);
      if (nextProjectPath) {
        projectConversationWriteCancelledRef.current = {
          projectPath: nextProjectPath,
          messageCount: latestMessagesRef.current.length,
        };
        setWorkspaceStatus((current) =>
          current === '等待确认保存项目对话'
            ? `已打开：${nextProjectPath}`
            : current,
        );
      }
    }
    if (pending.commandId === 'conversation.read') {
      if (!pending.detail.includes('Agent 对话')) {
        setWorkspaceStatus((current) =>
          current === '等待确认' ? '已取消读取项目对话' : current,
        );
      }
    }
    if (pending.commandId === 'memory.read') {
      if (!pending.detail.includes('Agent 私有记忆')) {
        setMessages((current) => [
          ...current,
          { role: 'assistant', text: '已取消读取项目记忆。' },
        ]);
      }
    }
    if (
      pending.commandId === 'project.status' ||
      pending.commandId === 'task.list'
    ) {
      const status =
        pending.commandId === 'task.list'
          ? '已取消读取任务拆分'
          : '已取消读取项目状态';
      setWorkspaceStatus(status);
    }
    if (pending.commandId === 'asset.list') {
      setWorkspaceStatus('已取消读取项目资产');
    }
    if (
      pending.commandId === 'preview.start' ||
      pending.commandId === 'preview.open' ||
      pending.commandId === 'preview.stop' ||
      pending.commandId === 'preview.status'
    ) {
      setWorkspaceStatus('已取消预览操作');
      setMessages((current) => [
        ...current,
        { role: 'assistant', text: '已取消预览操作' },
      ]);
    }
    if (
      pending.commandId === 'project.index' ||
      pending.commandId === 'project.diff' ||
      pending.commandId === 'project.export_package'
    ) {
      const status =
        pending.commandId === 'project.index'
          ? '已取消刷新项目索引'
          : pending.commandId === 'project.diff'
            ? '已取消对比项目 checkpoint'
            : '已取消导出本地试玩包';
      setWorkspaceStatus(status);
    }
    if (pending.commandId === 'project.create') {
      setWorkspaceStatus('已取消');
    }
    pendingUiConfirmationActionRef.current = null;
    setPendingUiConfirmation(null);
    appendLocalPermissionLog(
      pending.projectPath ??
        resolveUiPermissionLogProjectPath(pending.commandId),
      'permission.cancel',
      pending.commandId,
    );
  }

  executeRunLocalRef.current = executeRunLocal;

  useEffect(() => {
    const nextProjectPath = localProject?.projectPath;
    if (
      !playRequest ||
      !nextProjectPath ||
      playRequest.projectPath !== nextProjectPath
    ) {
      return;
    }
    const requestKey = `${playRequest.projectPath}\n${playRequest.requestId}`;
    if (handledPlayRequestRef.current === requestKey) {
      return;
    }
    handledPlayRequestRef.current = requestKey;
    onPlayRequestHandled?.(playRequest.requestId);
    void executeRunLocalRef.current(true);
  }, [localProject?.projectPath, onPlayRequestHandled, playRequest]);

  /**
   * 切换项目作用域时把这条链路自己的聊天状态清干净。
   *
   * 策划会话与设计 Agent 视图都属于上一个项目；项目身份一变就不能留到下一个项目里。
   */
  function resetChatState() {
    setChatFilesImporting(false);
    setChatFileImportNotice('');
    setProjectChatError('');
    setDesignAgentTransientReplyTarget('');
    designAgentPendingViewRef.current = null;
    setDesignAgentReasoning('');
    setDesignAgentActive(planningStartMode);
    designAgentActiveRef.current = planningStartMode;
    designAgentLaneRef.current = planningStartMode;
    designAgentTurnRef.current = null;
    designAgentReasoningTurnRef.current = null;
    setDesignAgentView(null);
  }

  async function loadProjectConversation(
    nextProjectPath: string,
    skipPolicyConfirm = false,
  ) {
    const invoke = resolveTauriInvoke();
    if (!invoke) {
      return;
    }
    if (!skipPolicyConfirm) {
      try {
        const policyView = await invoke<ProjectPermissionPolicyView>(
          'read_project_permission_policy',
          { projectPath: nextProjectPath },
        );
        if (policyView.policy.confirmCommands.includes('conversation.read')) {
          requestProjectPolicyConfirmation(
            'conversation.read',
            nextProjectPath,
            `读取 ${nextProjectPath} 的项目对话历史`,
            () => void loadProjectConversation(nextProjectPath, true),
          );
          setWorkspaceStatus('等待确认');
          return;
        }
      } catch {
        return;
      }
    }
    try {
      const design = await hydrateDesignAgentSession(nextProjectPath);
      if (design) {
        if (localProjectPathRef.current !== nextProjectPath) {
          return;
        }
        setWorkspaceStatus((workspaceStatus) =>
          workspaceStatus === '等待确认'
            ? `已打开：${nextProjectPath}`
            : workspaceStatus,
        );
        return;
      }
    } catch (error) {
      if (planningStartMode) {
        setProjectChatError(
          `策划会话无法恢复：${error instanceof Error ? error.message : String(error)}`,
        );
      }
    }
    if (planningStartMode) {
      if (localProjectPathRef.current !== nextProjectPath) {
        return;
      }
      designAgentActiveRef.current = true;
      setDesignAgentActive(true);
      designAgentLaneRef.current = true;
      setDesignAgentView(null);
      setMessages(createDefaultChatMessages());
      savedConversationProjectPathRef.current = nextProjectPath;
      savedConversationCountRef.current = 0;
      latestMessagesRef.current = [];
      setWorkspaceStatus((workspaceStatus) =>
        workspaceStatus === '等待确认'
          ? `已打开：${nextProjectPath}`
          : workspaceStatus,
      );
      return;
    }
    // DirectProject 的项目对话由聊天容器自己的订阅与切片读取拥有：工作台壳不读项目
    // 对话文件，也不把历史混进壳自己的 `messages`。
    setProjectChatError('');
    setWorkspaceStatus((workspaceStatus) =>
      workspaceStatus === '等待确认'
        ? `已打开：${nextProjectPath}`
        : workspaceStatus,
    );
  }

  async function openWorkspace(
    nextProjectPath: string,
    announceToChat: boolean,
    mode: 'create' | 'open' = 'create',
    // 工程类型已不再由壳层决定插件可用性（插件宿主自己判），保留入参只为调用契约。
    _projectKind: LocalProjectKind = 'web',
  ) {
    const trimmedProjectPath = nextProjectPath.trim();
    if (!trimmedProjectPath || !isAbsoluteProjectPath(trimmedProjectPath)) {
      setWorkspaceStatus('请提供工作区绝对路径');
      return;
    }
    if (projectPathHasControlCharacter(trimmedProjectPath)) {
      setWorkspaceStatus('工作区路径不能包含控制字符');
      return;
    }

    const invoke = resolveTauriInvoke();
    if (!invoke) {
      setWorkspaceStatus('需要在 Tauri App 内运行');
      if (announceToChat) {
        setMessages((current) => [
          ...current,
          { role: 'assistant', text: '需要在 Tauri App 内运行。' },
        ]);
      }
      return;
    }

    const projectScopeVersion = projectScopeVersionRef.current + 1;
    projectScopeVersionRef.current = projectScopeVersion;
    resetChatState();
    updateClientPreview(null);
    setWorkspaceStatus('正在打开');
    try {
      const result =
        mode === 'open'
          ? {
              projectPath: trimmedProjectPath,
              manifestPath: `${trimmedProjectPath.replace(/[\\/]+$/, '')}/.agent/manifest.json`,
              manifest: await invoke<GameCreationAppManifest>(
                'get_local_game_manifest',
                { projectPath: trimmedProjectPath },
              ),
            }
          : await invoke<InitLocalProjectResult>('init_local_game_project', {
              projectPath: trimmedProjectPath,
              projectId: createLocalProjectId(),
              name: seedManifest.name,
            });
      if (projectScopeVersionRef.current !== projectScopeVersion) {
        return;
      }
      const openedProjectPath = result.projectPath.trim();
      if (
        !openedProjectPath ||
        !isAbsoluteProjectPath(openedProjectPath) ||
        projectPathHasControlCharacter(openedProjectPath)
      ) {
        const message = '本地项目路径无效';
        setWorkspaceStatus(message);
        if (announceToChat) {
          setMessages((current) => [
            ...current,
            { role: 'assistant', text: message },
          ]);
        }
        return;
      }
      const openedProject = { ...result, projectPath: openedProjectPath };
      const conversationMessages = createDefaultChatMessages();

      if (
        pendingUiConfirmation?.projectPath &&
        pendingUiConfirmation.projectPath !== openedProject.projectPath
      ) {
        cancelUiCommandConfirmation();
      }
      localProjectPathRef.current = openedProject.projectPath;
      setProjectPath(openedProject.projectPath);
      setLocalProject(openedProject);
      setManifest(openedProject.manifest);
      setAgentRuntimeById({});
      setMessages(conversationMessages);
      setConversationVisibleCount(CONVERSATION_INITIAL_VISIBLE_COUNT);
      savedConversationProjectPathRef.current = openedProject.projectPath;
      savedConversationCountRef.current = conversationMessages.length;
      writeRecentWorkspace(openedProject.projectPath);
      setWorkspaceStatus(`已打开：${openedProject.projectPath}`);
      appendLocalPermissionLog(
        openedProject.projectPath,
        'permission.confirm',
        mode === 'open' ? 'project.status' : 'project.create',
      );
      if (announceToChat) {
        setMessages((current) => [
          ...current,
          {
            role: 'assistant',
            text: `已设置本地项目：${openedProject.projectPath}`,
          },
        ]);
      }
      void loadProjectConversation(openedProject.projectPath);
      if (!directProjectMode) {
        void refreshAgentRunTrace(openedProject.projectPath);
      }
    } catch (error) {
      if (projectScopeVersionRef.current !== projectScopeVersion) {
        return;
      }
      const message = error instanceof Error ? error.message : String(error);
      setWorkspaceStatus(message);
      if (announceToChat) {
        setMessages((current) => [
          ...current,
          { role: 'assistant', text: message },
        ]);
      }
    }
  }

  useEffect(() => {
    const handleResourceReferenceInsert = (event: Event) => {
      const detail = (event as CustomEvent<ResourceReferenceInsertEventDetail>)
        .detail;
      if (!detail?.reference) return;
      chatComposerRef.current?.insertReferences([detail.reference]);
      chatComposerRef.current?.focus();
    };
    window.addEventListener(
      RESOURCE_REFERENCE_INSERT_EVENT,
      handleResourceReferenceInsert,
    );
    return () =>
      window.removeEventListener(
        RESOURCE_REFERENCE_INSERT_EVENT,
        handleResourceReferenceInsert,
      );
  }, []);

  /**
   * DirectProject 聊天的首轮需求：入口 latch 里那份原文与附件，项目匹配后由聊天认领。
   *
   * 认领记录与 Design / Planning 入口共用一份（按页面保存），因此同一条
   * 首轮需求不会被两个入口各发一次。
   */
  const initialDirectTurn: DirectProjectInitialTurn | null = (() => {
    const latch = initialPlanningPromptLatchRef.current;
    if (!latch.prompt || !latch.projectPath) return null;
    return {
      projectPath: latch.projectPath,
      // 首轮需求按 Composer 的 canonical content 形状交给聊天：文本与附件引用内联在
      // 同一份 content 里，`@` 引用与附件的处理不需要两套入参。
      content: [
        { type: 'input_text', text: latch.prompt },
        ...directCodexAttachmentContentParts(latch.attachments),
      ],
      creationType: latch.creationType,
      claimScope: latch.claimScope,
    };
  })();

  /**
   * DirectProject 读自己项目对话的门：策略要求确认时入队确认，读取由回调继续。
   */
  async function ensureDirectHistoryReadAllowed(input: {
    projectPath: string;
    onConfirmed: () => void;
  }) {
    const invoke = resolveTauriInvoke();
    if (!invoke) return false;
    try {
      const policyView = await invoke<ProjectPermissionPolicyView>(
        'read_project_permission_policy',
        { projectPath: input.projectPath },
      );
      if (!policyView.policy.confirmCommands.includes('conversation.read')) {
        return true;
      }
      requestProjectPolicyConfirmation(
        'conversation.read',
        input.projectPath,
        `读取 ${input.projectPath} 的项目对话历史`,
        input.onConfirmed,
      );
      setWorkspaceStatus('等待确认');
      return false;
    } catch {
      return false;
    }
  }

  /**
   * DirectProject 写自己项目对话的门：策略要求确认时入队确认，确认后重跑同一轮。
   */
  async function ensureDirectTurnWriteAllowed(input: {
    projectPath: string;
    onConfirmed: () => void;
  }) {
    const invoke = resolveTauriInvoke();
    if (!invoke) return false;
    if (projectConversationWriteConfirmedRef.current === input.projectPath) {
      return true;
    }
    try {
      const paused = await queueProjectPolicyConfirmationIfNeeded(
        invoke,
        'conversation.write',
        input.projectPath,
        '写入 DirectProject 对话历史',
        'DirectProject 对话写入需要确认。',
        () => {
          projectConversationWriteConfirmedRef.current = input.projectPath;
          input.onConfirmed();
        },
      );
      if (paused) return false;
      projectConversationWriteConfirmedRef.current = input.projectPath;
      return true;
    } catch (error) {
      if (localProjectPathRef.current === input.projectPath) {
        setProjectChatError(
          `DirectProject 对话权限检查失败：${
            error instanceof Error ? error.message : String(error)
          }`,
        );
      }
      return false;
    }
  }

  /**
   * 工作台壳要把一句结果说给用户在项目对话里听。
   *
   * DirectProject 的会话由聊天容器持有，壳只把这句话交给聊天的本地消息流；
   * 立项策划路径仍写壳自己的 `messages`。
   */
  function announceProjectChatMessage(text: string) {
    if (directProjectMode) {
      directProjectChatRef.current?.announce(text);
      return;
    }
    setMessages((current) => [...current, { role: 'assistant', text }]);
  }

  async function executeChatAgentReply({
    prompt,
    clientTurnId: directConversationTurnId,
  }: ExecuteChatAgentReplyInput) {
    const nextProjectPath = resolveChatProjectPath(localProject);
    if (!nextProjectPath) {
      setProjectChatError('请先初始化本地项目');
      return;
    }
    await executeDesignAgentTurn(
      nextProjectPath,
      { type: 'message', text: prompt },
      directConversationTurnId ?? createAgentChatRunId('design-agent-turn'),
    );
  }

  executeChatAgentReplyRef.current = executeChatAgentReply;

  useEffect(() => {
    const latch = initialPlanningPromptLatchRef.current;
    if (!planningStartMode || !latch.prompt || !localProject) {
      return;
    }
    if (localProject.projectPath !== latch.projectPath) {
      // 不能在这里先"占用"这条初始消息：项目路径可能因为分隔符/大小写/时序先落到别的
      // 路径上，一旦占用，真正匹配的项目就再也不会收到这条消息，用户的输入被静默丢掉。
      // 这里只等待，占用留给下面真正要发送的那一步。
      return;
    }
    if (
      chatAgentBusy ||
      !claimInitialTurnForPage(latch.projectPath, latch.claimScope)
    ) {
      return;
    }
    planningChatShouldFollowLatestRef.current = true;
    setMessages((current) => [
      ...current,
      {
        role: 'user',
        text: latch.prompt,
        runtimeOwned: true,
        updatedAt: Date.now(),
      },
    ]);
    // DirectProject 的首轮需求由聊天容器自己认领并发送（见 `DirectProjectChat`）。
    void executeChatAgentReplyRef.current({ prompt: latch.prompt });
    // 初始消息 latch 只由入口状态驱动；controller 内部函数保持稳定语义。
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [
    chatAgentBusy,
    initialCreationType,
    initialPlanningPrompt,
    localProject,
    planningStartMode,
  ]);

  function cancelProjectCreateInNonEmptyFolder() {
    const pendingCreate = pendingNonEmptyProjectCreate;
    setPendingNonEmptyProjectCreate(null);
    setWorkspaceStatus('已取消');
    if (pendingCreate?.announceToChat) {
      setMessages((current) => [
        ...current,
        {
          role: 'assistant',
          text: `已取消在非空文件夹中新建项目：${pendingCreate.projectPath}`,
        },
      ]);
    }
  }

  /**
   * 预览已经在跑时先切视图，不重启预览服务。
   *
   * `activate_local_game_preview` 是 Rust 侧的「这条预览还活着、且属于这个项目」闸门：
   * 它只核对内存 registry 里的状态并回传可用的 loopback 地址，前端据此进客户端运行视图。
   * 同一个动作过去由工作台壳的 `/preview open` 聊天命令承担，那条命令链随 Supervisor
   * 前端链路一起退役，行为改由「运行」入口承接，结果经 DirectProject 聊天的 `announce`
   * 交给聊天自己的消息流。返回 `null` 表示没有可复用的活体预览，调用方照旧重启预览。
   */
  async function activateRunningPreview(
    invoke: TauriInvoke,
    nextProjectPath: string,
  ): Promise<LocalPreviewResult | null> {
    try {
      const status = await invoke<LocalPreviewStatus>(
        'activate_local_game_preview',
        { projectPath: nextProjectPath },
      );
      if (
        status.status !== 'running' ||
        !status.url ||
        !status.port ||
        !status.root
      ) {
        return null;
      }
      return { url: status.url, port: status.port, root: status.root };
    } catch {
      // 没在跑、不属于这个项目，或权限位要求确认：都不是错误，回落到重新启动预览。
      return null;
    }
  }

  async function executeRunLocal(announceToChat: boolean) {
    const invoke = resolveTauriInvoke();
    if (!invoke) {
      if (announceToChat) {
        announceProjectChatMessage('需要在 Tauri App 内运行。');
      }
      return;
    }
    const nextProjectPath = resolveChatProjectPath(localProject);
    if (!nextProjectPath) {
      if (announceToChat) {
        announceProjectChatMessage('请先用 /project 设置本地项目。');
      }
      return;
    }

    try {
      const activePreview = await activateRunningPreview(
        invoke,
        nextProjectPath,
      );
      if (activePreview) {
        updateClientPreview(activePreview);
        if (announceToChat) {
          announceProjectChatMessage(
            `已切换到客户端运行视图：${activePreview.url}`,
          );
        }
        return;
      }
      const previewResult = await invoke<LocalPreviewResult>(
        'start_local_game_preview',
        { projectPath: nextProjectPath },
      );
      updateClientPreview(previewResult);
      void refreshManifest(nextProjectPath);
      if (!directProjectMode) {
        void refreshAgentRunTrace(nextProjectPath);
      }
      if (announceToChat) {
        announceProjectChatMessage(
          `运行通过，已载入客户端运行视图：${previewResult.url}`,
        );
      }
    } catch (error) {
      const message = error instanceof Error ? error.message : String(error);
      if (announceToChat) {
        announceProjectChatMessage(message);
      }
    }
  }

  async function loadAgentRunTraceFile(
    relativePath: string,
    nextProjectPath = resolveChatProjectPath(localProject) ?? '',
  ) {
    const invoke = resolveTauriInvoke();
    if (!invoke) {
      return null;
    }
    if (!nextProjectPath) {
      return null;
    }

    try {
      const result = await invoke<LocalProjectFileResult>(
        'read_local_project_file',
        {
          projectPath: nextProjectPath,
          relativePath,
          commandId: isAgentTraceFilePath(relativePath)
            ? 'agent.trace_read'
            : 'file.read',
        },
      );
      const trace = parseAgentRunTrace(result.content);
      return summarizeAgentRunCompletionForChat(trace);
    } catch {
      return null;
    }
  }

  function rememberAgentRuntimeState(runtime: AgentRuntimeState | null) {
    if (!runtime) {
      return;
    }
    const next = mergeAgentRuntimeStateIntoMap(
      agentRuntimeByIdRef.current,
      runtime,
      false,
    );
    agentRuntimeByIdRef.current = next;
    setAgentRuntimeById(next);
  }

  async function refreshAgentRuntimes(
    nextProjectPath = resolveChatProjectPath(localProject) ?? '',
  ) {
    const invoke = resolveTauriInvoke();
    if (!invoke || !nextProjectPath) {
      setAgentRuntimeById({});
      agentRuntimeResumeProjectPathRef.current = null;
      return;
    }
    if (directProjectMode) {
      agentRuntimeResumeProjectPathRef.current = nextProjectPath;
      setAgentRuntimeById({});
      return;
    }
    try {
      if (agentRuntimeResumeProjectPathRef.current !== nextProjectPath) {
        try {
          const resumedRuntimes = await invoke<AgentRuntimeResult[]>(
            'resume_game_creator_agent_runtime_tasks',
            { projectPath: nextProjectPath },
          );
          if (localProjectPathRef.current !== nextProjectPath) {
            return;
          }
          agentRuntimeResumeProjectPathRef.current = nextProjectPath;
          for (const runtimeResult of resumedRuntimes) {
            rememberAgentRuntimeState(
              agentRuntimeStateFromResult(runtimeResult),
            );
          }
        } catch (error) {
          if (localProjectPathRef.current !== nextProjectPath) {
            return;
          }
          const message =
            error instanceof Error ? error.message : String(error);
          if (isMissingAgentRuntimeResumeCommandError(error)) {
            agentRuntimeResumeProjectPathRef.current = nextProjectPath;
          } else if (
            message.includes('项目权限策略要求用户确认：agent.resume')
          ) {
            agentRuntimeResumeProjectPathRef.current = nextProjectPath;
            requestProjectPolicyConfirmation(
              'agent.resume',
              nextProjectPath,
              `恢复 ${nextProjectPath} 中未完成的 Agent Runtime 任务`,
              () => {
                void invoke<AgentRuntimeResult[]>(
                  'confirm_resume_game_creator_agent_runtime_tasks',
                  { projectPath: nextProjectPath },
                )
                  .then((resumedRuntimes) => {
                    if (localProjectPathRef.current !== nextProjectPath) {
                      return;
                    }
                    agentRuntimeResumeProjectPathRef.current = nextProjectPath;
                    for (const runtimeResult of resumedRuntimes) {
                      rememberAgentRuntimeState(
                        agentRuntimeStateFromResult(runtimeResult),
                      );
                    }
                  })
                  .catch(() => {
                    if (localProjectPathRef.current !== nextProjectPath) {
                      return;
                    }
                    agentRuntimeResumeProjectPathRef.current = null;
                  });
              },
            );
          } else if (message.includes('项目权限策略拒绝执行：agent.resume')) {
            agentRuntimeResumeProjectPathRef.current = nextProjectPath;
            markProjectPolicyDenied('agent.resume', message);
          } else {
            agentRuntimeResumeProjectPathRef.current = null;
          }
        }
      }
      const runtimes = await invoke<AgentRuntimeResult[]>(
        'read_game_creator_agent_runtimes',
        { projectPath: nextProjectPath },
      );
      if (localProjectPathRef.current !== nextProjectPath) {
        return;
      }
      const nextRuntimes: AgentRuntimeState[] = [];
      for (const runtimeResult of runtimes) {
        nextRuntimes.push(agentRuntimeStateFromResult(runtimeResult));
      }
      setAgentRuntimeById((current) =>
        nextRuntimes.reduce(
          (next, runtime) => mergeAgentRuntimeStateIntoMap(next, runtime, true),
          current,
        ),
      );
    } catch {
      if (localProjectPathRef.current === nextProjectPath) {
        setAgentRuntimeById({});
      }
    }
  }

  async function refreshAgentRunTrace(
    nextProjectPath = resolveChatProjectPath(localProject) ?? '',
  ) {
    if (!nextProjectPath) {
      await refreshAgentRuntimes(nextProjectPath);
      return null;
    }
    const summary = await loadAgentRunTraceFile(
      '.agent/run.latest.json',
      nextProjectPath,
    );
    await refreshAgentRuntimes(nextProjectPath);
    return summary;
  }

  const professionalResultCandidates = taskRowsFromManifest(manifest).map(
    (task) => ({
      agentId: agentConversationId(task),
      label: projectProfessionalAgentLabel(agentConversationId(task)),
      runtimeUpdatedAt:
        agentRuntimeById[agentConversationId(task)]?.updatedAt ?? 0,
    }),
  );
  const professionalResultCandidateKey = professionalResultCandidates
    .map((candidate) => `${candidate.agentId}:${candidate.runtimeUpdatedAt}`)
    .join('|');
  useEffect(() => {
    const nextProjectPath = localProject?.projectPath;
    if (!nextProjectPath || !onManifestChange) {
      return;
    }
    const invoke = resolveTauriInvoke();
    if (!invoke) {
      return;
    }
    let cancelled = false;
    void (async () => {
      for (let attempt = 0; attempt < 2; attempt += 1) {
        const before = await invoke<LocalGameProjectRevisionStatus>(
          'get_local_game_project_revision',
          { projectPath: nextProjectPath },
        );
        const currentManifest = await invoke<GameCreationAppManifest>(
          'get_local_game_manifest',
          { projectPath: nextProjectPath },
        );
        const after = await invoke<LocalGameProjectRevisionStatus>(
          'get_local_game_project_revision',
          { projectPath: nextProjectPath },
        );
        if (before.revision !== after.revision) {
          continue;
        }
        if (!cancelled) {
          onManifestChange(nextProjectPath, currentManifest, {
            projectId: currentManifest.projectId,
            revision: after.revision,
            source: 'chat',
          });
        }
        return;
      }
    })().catch(() => undefined);
    return () => {
      cancelled = true;
    };
  }, [localProject?.projectPath, manifest, onManifestChange]);
  useEffect(() => {
    const invoke = resolveTauriInvoke();
    const nextProjectPath = localProject?.projectPath ?? null;
    if (
      directProjectMode ||
      !invoke ||
      !nextProjectPath ||
      professionalResultCandidates.length === 0
    ) {
      setProfessionalAgentResultsById({});
      return;
    }
    let disposed = false;
    void Promise.all(
      professionalResultCandidates.map(async (candidate) => {
        try {
          const conversation = await invoke<LocalConversationResult>(
            'read_local_conversation',
            {
              projectPath: nextProjectPath,
              agentId: candidate.agentId,
            },
          );
          const finalMessage = conversation.messages
            .slice()
            .reverse()
            .find(
              (message) =>
                message.role === 'assistant' &&
                message.content.trim() &&
                isAgentFinalizationMessageId(message.messageId),
            );
          if (!finalMessage) {
            return {
              agentId: candidate.agentId,
              status: 'missing' as const,
            };
          }
          return {
            agentId: candidate.agentId,
            status: 'loaded' as const,
            result: {
              agentId: candidate.agentId,
              runId: finalMessage.messageId!,
              label: candidate.label,
              title: `${candidate.label} 文本回执`,
              content: finalMessage.content.trim(),
              updatedAt: finalMessage.updatedAt,
            } satisfies ProjectAgentResultSummary,
          };
        } catch {
          return {
            agentId: candidate.agentId,
            status: 'failed' as const,
          };
        }
      }),
    ).then((results) => {
      if (disposed || localProjectPathRef.current !== nextProjectPath) {
        return;
      }
      setProfessionalAgentResultsById((current) => {
        const candidateAgentIds = new Set(
          professionalResultCandidates.map((candidate) => candidate.agentId),
        );
        const next = Object.fromEntries(
          Object.entries(current).filter(([agentId]) =>
            candidateAgentIds.has(agentId),
          ),
        );
        for (const outcome of results) {
          if (outcome.status === 'loaded') {
            next[outcome.agentId] = outcome.result;
          } else if (outcome.status === 'missing') {
            delete next[outcome.agentId];
          }
        }
        return next;
      });
    });
    return () => {
      disposed = true;
    };
    // The semantic candidate key replaces the freshly allocated candidates array.
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [
    directProjectMode,
    localProject?.projectPath,
    professionalResultCandidateKey,
  ]);
  useEffect(() => {
    if (!onAgentRuntimeSummariesChange) {
      return;
    }
    // 工作台壳不再持有任何根 Runtime：普通项目的运行态由 `DirectProjectChatView`
    // 自己的订阅拥有，策划链路只投影设计 Agent 会话。这里保留回调契约，根 Runtime
    // 传 null，运行态叠加交给各入口自己的事实源。
    onAgentRuntimeSummariesChange(
      projectAgentRuntimeSummaries(manifest, null, agentRuntimeById),
    );
  }, [agentRuntimeById, manifest, onAgentRuntimeSummariesChange]);
  useEffect(() => {
    if (!onAgentResultsChange) {
      return;
    }
    onAgentResultsChange(Object.values(professionalAgentResultsById));
  }, [onAgentResultsChange, professionalAgentResultsById]);
  const chatProjectAssets = manifest.assets.filter(
    (asset) => asset.localPath && !asset.localPath.startsWith('.agent/'),
  );
  // `@` 面板「当前版本素材」的版本来源：版本列表来自 manifest，
  // 当前版本由工作台壳（`WorkspaceLauncherShell`）持有的那一份状态给出，
  // 传 `null` 表示回退到 manifest 中最新的版本。
  const chatProjectVersions = manifest.versions ?? [];
  const chatActiveVersionId = activeVersionId;

  const visibleMessages = latestVisibleItems(
    messages,
    conversationVisibleCount,
  );
  const hiddenConversationCount = Math.max(
    0,
    messages.length - visibleMessages.length,
  );
  const hasEarlierConversationMessages = hiddenConversationCount > 0;
  async function showEarlierConversationMessages() {
    setConversationVisibleCount((current) =>
      Math.min(messages.length, current + CONVERSATION_VISIBLE_STEP),
    );
  }

  function handleConversationScroll(event: UIEvent<HTMLElement>) {
    if (!hasEarlierConversationMessages) {
      return;
    }
    if (event.currentTarget.scrollTop <= 24) {
      showEarlierConversationMessages();
    }
  }

  function handlePlanningChatScroll(event: UIEvent<HTMLDivElement>) {
    handleConversationScroll(event);
    const messageList = event.currentTarget;
    const distanceFromBottom =
      messageList.scrollHeight -
      messageList.scrollTop -
      messageList.clientHeight;
    planningChatShouldFollowLatestRef.current =
      distanceFromBottom <= AGENT_CHAT_SCROLL_BOTTOM_THRESHOLD;
  }

  /**
   * 策划输入盒导入本地文件：文件直接写进策划工作区（`references/`），既不进游戏资源
   * 清单，也不生成回合附件；导入期间通知工作台壳暂缓切换游戏运行态。
   */
  async function handleDesignComposerUploadFiles(files: readonly File[]) {
    const invoke = resolveTauriInvoke();
    const nextProjectPath = resolveChatProjectPath(localProject);
    if (!invoke || !nextProjectPath) {
      setChatFileImportNotice('需要先打开本地项目，才能导入文件');
      return;
    }
    if (chatFilesImporting || files.length === 0) {
      return;
    }
    setChatFilesImporting(true);
    onDesignFilesImportingChange?.(nextProjectPath, true);
    setChatFileImportNotice('正在导入文件');
    try {
      const notice = await importDesignFiles(invoke, nextProjectPath, files);
      if (localProjectPathRef.current === nextProjectPath) {
        setChatFileImportNotice(notice);
      }
    } finally {
      setChatFilesImporting(false);
      onDesignFilesImportingChange?.(nextProjectPath, false);
    }
  }

  function handlePlanningChatSubmit(event: FormEvent<HTMLFormElement>) {
    event.preventDefault();
    const content = chatComposerRef.current?.getDraft().content ?? [];
    const legacyContent = directCodexContentToLegacyContentDto(
      content,
      manifest.assets,
    );
    const canonicalPrompt = legacyContent.text;
    if (!hasMeaningfulDirectCodexContent(content)) {
      return;
    }
    if (chatAgentBusy) {
      return;
    }
    if (!canonicalPrompt) {
      return;
    }
    planningChatShouldFollowLatestRef.current = true;
    const clientTurnId = createAgentChatRunId('design-agent-turn');
    chatComposerRef.current?.clear();
    setMessages((current) => [
      ...current,
      {
        role: 'user',
        text: canonicalPrompt,
        runtimeOwned: true,
        updatedAt: Date.now(),
      },
    ]);
    void executeChatAgentReply({ prompt: canonicalPrompt, clientTurnId });
  }

  const useDesignAgentSurface = Boolean(designAgentView) || designAgentActive;

  if (directProjectMode) {
    // 普通项目固定走 DirectProject 自己的聊天容器：订阅、历史、发送、队列和附件都由
    // 容器持有，工作台壳只提供项目身份、入口首轮需求和两条权限门。
    return (
      <>
        <DirectProjectChatView
          ensureConversationReadAllowed={ensureDirectHistoryReadAllowed}
          ensureConversationWriteAllowed={ensureDirectTurnWriteAllowed}
          initialTurn={initialDirectTurn}
          onRequestGamePublish={
            gamePublishAllowed ? requestGamePublish : undefined
          }
          projectPath={localProject?.projectPath ?? projectPath ?? null}
          ref={directProjectChatRef}
        />
        <GameDistributionPublishPanel
          open={publishPanelOpen}
          projectPath={localProject?.projectPath ?? projectPath ?? ''}
          manifest={manifest}
          packageResult={publishPackageResult}
          onClose={() => setPublishPanelOpen(false)}
        />
      </>
    );
  }

  return (
    <>
      <PlanningChatView
        initialPlanningPrompt={initialPlanningPrompt}
        activeVersionId={chatActiveVersionId}
        composerRef={chatComposerRef}
        chatProjectAssets={chatProjectAssets}
        hiddenConversationCount={hiddenConversationCount}
        hasEarlierConversationMessages={hasEarlierConversationMessages}
        messagesRef={planningChatMessagesRef}
        needsUserInput={false}
        onCancelConfirmation={cancelUiCommandConfirmation}
        onConfirmConfirmation={confirmUiCommand}
        onScroll={handlePlanningChatScroll}
        onShowEarlierMessages={showEarlierConversationMessages}
        onSubmit={handlePlanningChatSubmit}
        pendingConfirmation={pendingUiConfirmation}
        projectPath={localProject?.projectPath ?? projectPath}
        conversationMessages={messages}
        transientReply={designAgentTransientReply}
        showDesignReasoning={designAgentActive}
        designReasoning={designAgentReasoning}
        designReasoningEntries={
          useDesignAgentSurface ? (designAgentView?.reasoningEntries ?? []) : []
        }
        visibleMessages={visibleMessages}
        workspaceStatus={workspaceStatus}
        designView={useDesignAgentSurface ? designAgentView : null}
        onDesignApprove={
          useDesignAgentSurface
            ? (requestId, approved) => {
                const nextProjectPath = resolveChatProjectPath(localProject);
                const invoke = resolveTauriInvoke();
                if (!nextProjectPath || !invoke) {
                  return;
                }
                const clientTurnId = createAgentChatRunId('design-agent-turn');
                designAgentTurnRef.current = {
                  projectPath: nextProjectPath,
                  clientTurnId,
                };
                designAgentReasoningTurnRef.current = {
                  projectPath: nextProjectPath,
                  clientTurnId,
                };
                designAgentPendingViewRef.current = null;
                setDesignAgentTransientReplyTarget('');
                setDesignAgentReasoning('');
                setChatAgentBusy(true);
                void designAgentEventSubscriptionReady()
                  .then(() =>
                    invoke<DesignView>('decide_design_phase', {
                      projectPath: nextProjectPath,
                      clientTurnId,
                      requestId,
                      approved,
                    }),
                  )
                  .then((view) => {
                    if (
                      localProjectPathRef.current !== nextProjectPath ||
                      designAgentTurnRef.current?.projectPath !==
                        nextProjectPath ||
                      designAgentTurnRef.current?.clientTurnId !== clientTurnId
                    ) {
                      return;
                    }
                    applyDesignAgentViewAfterTransient(
                      view,
                      nextProjectPath,
                      clientTurnId,
                    );
                  })
                  .catch((error) => {
                    if (
                      localProjectPathRef.current !== nextProjectPath ||
                      designAgentTurnRef.current?.projectPath !==
                        nextProjectPath ||
                      designAgentTurnRef.current?.clientTurnId !== clientTurnId
                    ) {
                      return;
                    }
                    setProjectChatError(String(error));
                  })
                  .finally(() => {
                    if (
                      localProjectPathRef.current !== nextProjectPath ||
                      designAgentTurnRef.current?.projectPath !==
                        nextProjectPath ||
                      designAgentTurnRef.current?.clientTurnId !== clientTurnId
                    ) {
                      return;
                    }
                    if (!designAgentPendingViewRef.current) {
                      designAgentTurnRef.current = null;
                      setDesignAgentTransientReplyTarget('');
                    }
                    setChatAgentBusy(false);
                  });
              }
            : undefined
        }
        onDesignClarify={
          useDesignAgentSurface
            ? (question: DesignClarificationRequest, optionIndex, text) => {
                const nextProjectPath = resolveChatProjectPath(localProject);
                if (!nextProjectPath) {
                  return;
                }
                void executeDesignAgentTurn(nextProjectPath, {
                  type: 'clarification',
                  requestId: question.requestId,
                  optionIndex,
                  text: text.trim() ? text : null,
                });
              }
            : undefined
        }
        onDesignRetry={
          useDesignAgentSurface
            ? () => {
                const nextProjectPath = resolveChatProjectPath(localProject);
                if (!nextProjectPath) {
                  return;
                }
                void executeDesignAgentTurn(nextProjectPath, { type: 'retry' });
              }
            : undefined
        }
        error={projectChatError}
        controlBusy={chatAgentBusy}
        attachmentNotice={chatFileImportNotice}
        importingFiles={chatFilesImporting}
        onUploadFiles={(files) => void handleDesignComposerUploadFiles(files)}
        versions={chatProjectVersions}
      />
      {runtimeConfigOpen ? (
        <RuntimeConfigDialog
          projectPath={localProject?.projectPath}
          onClose={() => setRuntimeConfigOpen(false)}
        />
      ) : null}
      <GameDistributionPublishPanel
        open={publishPanelOpen}
        projectPath={localProject?.projectPath ?? projectPath ?? ''}
        manifest={manifest}
        packageResult={publishPackageResult}
        onClose={() => setPublishPanelOpen(false)}
      />
    </>
  );
}