import type {
  ReleaseProgressDto as ContractReleaseProgressDto,
  CoursewareTransfer,
} from '@classhelper/shared';
import { contextBridge, ipcRenderer } from 'electron';
import { IPC_CHANNELS, UPDATE_AVAILABLE_CHANNEL } from '../main/channels.js';
import type { ClientAgentStatus } from '../main/client-agent.js';
import type {
  DesktopAppInfo,
  DesktopBridge,
  DesktopStoredConfig,
  IslandClassStatePayload,
  IslandPushContext,
} from '../types/desktop.js';
import type { IslandNotification, UpdateInfo } from '@classhelper/shared';

/**
 * 预加载脚本：在开启了 contextIsolation + sandbox 的前提下，
 * 只向渲染进程暴露一组最小的、显式声明的能力（不暴露 ipcRenderer 本体）。
 *
 * 注意：contextBridge 在参数跨越"主世界 → 隔离世界"时就做结构化克隆，
 * 因此**桥接层无法替调用方兜底**：传 Vue 响应式对象（Proxy）会在进入这里的函数体
 * 之前就抛 `An object could not be cloned.`。调用方必须传纯数据，见 desktop.d.ts。
 */
const bridge: DesktopBridge = {
  downloadCourseware: (id) => ipcRenderer.invoke('courseware:download', id),
  revealCourseware: (id) => ipcRenderer.invoke('courseware:reveal', id),
  listLocalCourseware: () => ipcRenderer.invoke('courseware:local-list'),
  syncCourseware: () => ipcRenderer.invoke('courseware:sync'),
  getCoursewareTransfer: () => ipcRenderer.invoke('courseware:get-progress'),
  onCoursewareTransfer: (handler) => {
    const listener = (_event: unknown, value: CoursewareTransfer | null) => handler(value);
    ipcRenderer.on('courseware:progress', listener);
    return () => ipcRenderer.removeListener('courseware:progress', listener);
  },
  islandEditLayout: () => ipcRenderer.invoke('island:edit-layout'),
  onIslandEditorOpen: (handler) => {
    const listener = () => handler();
    ipcRenderer.on('island:open-editor', listener);
    return () => ipcRenderer.removeListener('island:open-editor', listener);
  },
  smokeTest: process.env.ELECTRON_SMOKE_TEST === '1',
  // 冒烟凭据：只在冒烟模式下透传，供渲染进程的冒烟钩子构造测试数据用。
  // **不走代码字面量**——本文件与渲染产物都会进 app.asar，写死账号等于随安装包把教师口令发出去。
  smokeCredentials:
    process.env.ELECTRON_SMOKE_TEST === '1'
      ? {
          username: process.env.ELECTRON_SMOKE_USER ?? '',
          password: process.env.ELECTRON_SMOKE_PASSWORD ?? '',
          classCode: process.env.ELECTRON_SMOKE_CLASS_CODE ?? '',
          classPassword: process.env.ELECTRON_SMOKE_CLASS_PASSWORD ?? '',
        }
      : undefined,
  getUpdateProgress: () => ipcRenderer.invoke('client:get-update-progress'),
  onUpdateProgress: (handler: (progress: ContractReleaseProgressDto) => void) => {
    const listener = (_event: unknown, value: ContractReleaseProgressDto) => handler(value);
    ipcRenderer.on('client:update-progress', listener);
    return () => ipcRenderer.removeListener('client:update-progress', listener);
  },
  getConfig: (): Promise<DesktopStoredConfig> => ipcRenderer.invoke(IPC_CHANNELS.getConfig),
  saveConfig: (patch: Partial<DesktopStoredConfig>): Promise<DesktopStoredConfig> =>
    ipcRenderer.invoke(IPC_CHANNELS.saveConfig, patch),
  clearConfig: (): Promise<DesktopStoredConfig> => ipcRenderer.invoke(IPC_CHANNELS.clearConfig),
  getAppInfo: (): Promise<DesktopAppInfo> => ipcRenderer.invoke(IPC_CHANNELS.appInfo),
  openExternal: (url: string): Promise<boolean> => ipcRenderer.invoke(IPC_CHANNELS.openExternal, url),

  /* 更新检查（主进程直连 GitHub，见 main/update.ts） */
  checkForUpdates: (force = false): Promise<UpdateInfo> =>
    ipcRenderer.invoke(IPC_CHANNELS.updateCheck, force),
  ignoreUpdateVersion: (version: string): Promise<void> =>
    ipcRenderer.invoke(IPC_CHANNELS.updateIgnore, version),
  onUpdateAvailable: (handler: (info: UpdateInfo) => void): void => {
    ipcRenderer.on(UPDATE_AVAILABLE_CHANNEL, (_event, info: UpdateInfo) => handler(info));
  },

  islandPush: (payload: { notification: IslandNotification; context?: IslandPushContext }): void => {
    ipcRenderer.send('island:push', payload);
  },
  islandRemoveNotification: (id: string): void => {
    ipcRenderer.send('island:remove-notification', id);
  },
  islandSetClassState: (payload: IslandClassStatePayload): void => {
    ipcRenderer.send('island:class-state', payload);
  },
  islandGetState: () => ipcRenderer.invoke('island:get-state'),
  islandSetAppearance: (appearance): void => {
    ipcRenderer.send('island:set-appearance', appearance);
  },
  islandGetAppearance: () => ipcRenderer.invoke('island:get-appearance'),
  /** 灵动岛点了"标为已读"：主进程转交渲染进程同步通知中心 */
  onIslandMarkRead: (handler: (id: string) => void): void => {
    ipcRenderer.on('island:mark-read', (_event, id: string) => handler(id));
  },
  /** 灵动岛点了"标为已读"（多条通知的整批）：一次同步这一批 */
  onIslandMarkAllRead: (handler: (ids: string[]) => void): void => {
    ipcRenderer.on('island:mark-all-read', (_event, ids: string[]) => handler(ids ?? []));
  },

  /* 开机自启 / 日志 / 服务端联动 */
  getAutoLaunch: (): Promise<boolean> => ipcRenderer.invoke(IPC_CHANNELS.getAutoLaunch),
  setAutoLaunch: (enabled: boolean): Promise<boolean> =>
    ipcRenderer.invoke(IPC_CHANNELS.setAutoLaunch, enabled === true),
  openLogDir: (): Promise<boolean> => ipcRenderer.invoke(IPC_CHANNELS.openLogDir),
  openDevTools: (): Promise<boolean> => ipcRenderer.invoke(IPC_CHANNELS.openDevTools),
  getClientAgentStatus: (): Promise<ClientAgentStatus> => ipcRenderer.invoke(IPC_CHANNELS.clientStatus),
  beatClientNow: (): Promise<ClientAgentStatus> => ipcRenderer.invoke(IPC_CHANNELS.clientBeatNow),
};

contextBridge.exposeInMainWorld('desktop', bridge);