import type { ComponentType } from 'react';

import type { AuthUser } from '../../../../../packages/shared/src/contracts/auth';
import type {
  GameCreationAppManifest,
  GameCreationAppPreviewState,
} from '../../../../../packages/shared/src/contracts/gameCreationApp';
import type {
  ChatMessage,
  LauncherImportedAttachment,
  LocalProjectDirectoryStatus,
} from '../../app/types';
import type { HomeCreationType } from '../../view/home';
import type { LauncherView } from '../../view/layout';
import type {
  ProjectAgentResultSummary,
  ProjectAgentRuntimeSummary,
} from '../../view/project-development';
import type { ProjectManifestSnapshotMetadata } from '../../view/project-development/projectResourceLiveUpdateModel';
import { isAbsoluteProjectPath } from '../project-summary/projectSummary';

const RECENT_WORKSPACES_STORAGE_KEY =
  'genarrative-ai-game-creator.recent-workspaces.v1';
const SUPERVISOR_CHAT_DRAFT_STORAGE_PREFIX =
  'genarrative.supervisor-chat.draft';

export type WorkspaceLauncherProps = {
  currentUser: AuthUser;
  onLogout: () => void;
  initialView?: LauncherView;
};

export type ProjectSupervisorComponentProps = {
  initialProjectPath?: string;
  initialProjectManifest?: GameCreationAppManifest;
  initialProjectKind?: 'web' | 'godot' | 'cocos';
  initialSupervisorMessage?: string;
  initialCreationType?: HomeCreationType | null;
  initialAttachments?: LauncherImportedAttachment[];
  orchestrationMode?: 'single-supervisor' | 'professional-dag';
  projectSupervisorOnly?: boolean;
  planningStartMode?: boolean;
  /**
   * C7 当前游戏版本：由工作台壳持有，supervisor 里的 `@` 面板按它切「当前版本素材」。
   * `null` 表示回退到 manifest 中最新的版本。
   */
  activeVersionId?: string | null;
  playRequest?: {
    projectPath: string;
    requestId: number;
  } | null;
  onPlayRequestHandled?: (requestId: number) => void;
  onManifestChange?: (
    projectPath: string,
    manifest: GameCreationAppManifest,
    metadata?: ProjectManifestSnapshotMetadata,
  ) => void;
  onPreviewChange?: (preview: GameCreationAppPreviewState | null) => void;
  onAgentRuntimeSummariesChange?: (
    summaries: ProjectAgentRuntimeSummary[],
  ) => void;
  onAgentResultsChange?: (results: ProjectAgentResultSummary[]) => void;
  onMakeGameFromApprovedGdd?: (projectPath: string) => Promise<void>;
  onSwitchToGameRuntime?: (projectPath: string) => Promise<void>;
};

export type WorkspaceLauncherShellProps = WorkspaceLauncherProps & {
  ProjectSupervisor: ComponentType<ProjectSupervisorComponentProps>;
};

export type RecentProjectRow = {
  path: string;
  name: string;
  status: string;
  projectKind: 'web' | 'cocos' | 'unity' | 'ue' | 'godot' | 'unknown';
  cocosProjectRoot: string | null;
  godotProjectRoot: string | null;
  modifiedAt: number | null;
  recentRunStatus: string | null;
  recentRunStopReason: string | null;
  canReveal: boolean;
  canOpen: boolean;
};

export type LauncherNotice = {
  title: string;
  message: string;
};

function normalizeRecentWorkspaceList(values: unknown[]) {
  const recent: string[] = [];
  for (const value of values) {
    if (typeof value !== 'string') {
      continue;
    }
    const workspace = value.trim();
    if (
      !workspace ||
      !isAbsoluteProjectPath(workspace) ||
      recent.includes(workspace)
    ) {
      continue;
    }
    recent.push(workspace);
    if (recent.length >= 8) {
      break;
    }
  }
  return recent;
}

export function readRecentWorkspaces() {
  try {
    const raw = window.localStorage.getItem(RECENT_WORKSPACES_STORAGE_KEY);
    const parsed: unknown = raw ? JSON.parse(raw) : [];
    return Array.isArray(parsed) ? normalizeRecentWorkspaceList(parsed) : [];
  } catch {
    return [];
  }
}

export function writeRecentWorkspace(path: string) {
  const recent = normalizeRecentWorkspaceList([
    path,
    ...readRecentWorkspaces(),
  ]);
  try {
    window.localStorage.setItem(
      RECENT_WORKSPACES_STORAGE_KEY,
      JSON.stringify(recent),
    );
  } catch {
    // WebView storage can be unavailable in restricted test shells.
  }
  return recent;
}

export function removeRecentWorkspace(path: string) {
  const trimmedPath = path.trim();
  const recent = readRecentWorkspaces().filter(
    (workspace) => workspace !== trimmedPath,
  );
  try {
    if (recent.length > 0) {
      window.localStorage.setItem(
        RECENT_WORKSPACES_STORAGE_KEY,
        JSON.stringify(recent),
      );
    } else {
      window.localStorage.removeItem(RECENT_WORKSPACES_STORAGE_KEY);
    }
  } catch {
    // WebView storage can be unavailable in restricted test shells.
  }
  return recent;
}

export function isTransientProjectOpenMessage(
  message: ChatMessage,
  projectPath: string,
) {
  return (
    message.role === 'assistant' &&
    message.text === `已设置本地项目：${projectPath}`
  );
}

export function latestVisibleItems<T>(items: T[], visibleCount: number) {
  if (items.length <= visibleCount) {
    return items;
  }
  return items.slice(items.length - visibleCount);
}

export function isDeveloperMode() {
  if (!import.meta.env.DEV) {
    return false;
  }
  const params = new URLSearchParams(window.location.search);
  return params.has('dev') || window.location.hash === '#dev';
}

export function readInitialProjectPath() {
  const params = new URLSearchParams(window.location.search);
  return params.get('projectPath') ?? '';
}

function supervisorChatDraftStorageKey(projectPath: string) {
  return `${SUPERVISOR_CHAT_DRAFT_STORAGE_PREFIX}:${projectPath}`;
}

export function readSupervisorChatDraft(projectPath: string) {
  const normalizedProjectPath = projectPath.trim();
  if (!normalizedProjectPath) {
    return '';
  }
  try {
    return (
      window.sessionStorage.getItem(
        supervisorChatDraftStorageKey(normalizedProjectPath),
      ) ?? ''
    );
  } catch {
    return '';
  }
}

export function persistSupervisorChatDraft(projectPath: string, draft: string) {
  const normalizedProjectPath = projectPath.trim();
  if (!normalizedProjectPath) {
    return;
  }
  try {
    const storageKey = supervisorChatDraftStorageKey(normalizedProjectPath);
    if (draft) {
      window.sessionStorage.setItem(storageKey, draft);
    } else {
      window.sessionStorage.removeItem(storageKey);
    }
  } catch {
    // A disabled session store must not block the development chat surface.
  }
}

export function buildRecentProjectRows(
  recentWorkspaces: string[],
  recentWorkspaceStatuses: Record<
    string,
    LocalProjectDirectoryStatus | null | undefined
  >,
  recentWorkspaceRefreshing: boolean,
): RecentProjectRow[] {
  return recentWorkspaces.map((workspace) => {
    const directoryStatus = recentWorkspaceStatuses[workspace];
    const isPendingStatus = directoryStatus === undefined;
    const projectName =
      directoryStatus?.projectName ||
      workspace.split(/[\\/]/).filter(Boolean).pop() ||
      workspace;
    const status = recentWorkspaceRefreshing
      ? '检查中'
      : isPendingStatus
        ? '检查中'
        : directoryStatus === null
          ? '检查失败'
          : directoryStatus?.exists === false
            ? '未找到'
            : directoryStatus?.isDirectory === false
              ? '不是文件夹'
              : directoryStatus?.manifestError
                ? '无法读取'
                : (directoryStatus?.isGodotProject === true ||
                      directoryStatus?.isCocosProject === true) &&
                    directoryStatus?.isGameCreatorProject === false
                  ? '可导入'
                  : directoryStatus?.isGameCreatorProject === false
                    ? '未初始化'
                    : directoryStatus?.recentRunStatus
                      ? formatRecentProjectRunStatus(
                          directoryStatus.recentRunStatus,
                          directoryStatus.recentRunStopReason,
                        )
                      : directoryStatus?.isGodotProject
                        ? '可打开'
                        : '本地项目';
    const canReveal =
      !recentWorkspaceRefreshing &&
      Boolean(directoryStatus) &&
      directoryStatus?.exists !== false &&
      directoryStatus?.isDirectory !== false;
    return {
      path: workspace,
      name: projectName,
      status,
      projectKind: directoryStatus?.isCocosProject
        ? 'cocos'
        : directoryStatus?.isGodotProject
          ? 'godot'
          : directoryStatus?.isGameCreatorProject
            ? 'web'
            : 'unknown',
      godotProjectRoot: directoryStatus?.godotProjectRoot ?? null,
      cocosProjectRoot: directoryStatus?.cocosProjectRoot ?? null,
      modifiedAt: directoryStatus?.modifiedAt ?? null,
      recentRunStatus: directoryStatus?.recentRunStatus ?? null,
      recentRunStopReason: directoryStatus?.recentRunStopReason ?? null,
      canReveal,
      canOpen:
        !recentWorkspaceRefreshing &&
        Boolean(directoryStatus) &&
        directoryStatus?.exists !== false &&
        directoryStatus?.isDirectory !== false &&
        !directoryStatus?.manifestError &&
        (directoryStatus?.isGameCreatorProject !== false ||
          directoryStatus?.isGodotProject === true ||
          directoryStatus?.isCocosProject === true),
    };
  });
}

function formatRecentProjectRunStatus(
  status: string,
  stopReason: string | null,
) {
  const statusLabel =
    {
      completed: '已完成',
      done: '已完成',
      failed: '运行失败',
      running: '运行中',
      pending: '等待运行',
      cancelled: '已取消',
    }[status] ?? status;
  const stopReasonLabel = stopReason
    ? ({
        'preview-running': '预览运行中',
        completed: '已完成',
        failed: '运行失败',
        cancelled: '已取消',
      }[stopReason] ?? stopReason)
    : null;
  return stopReasonLabel && stopReasonLabel !== statusLabel
    ? `${statusLabel} · ${stopReasonLabel}`
    : statusLabel;
}