caojunfei
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" ><span class="branch-0 cbranch-no" title="branch not covered" >/**</span></span></span>
 * WebSocket 服务
 * 用于推送音频/视频生成完成事件
 */
&nbsp;
import { Server as HttpServer } from 'http';
import WebSocket, { WebSocketServer } from 'ws';
&nbsp;
<span class="cstat-no" title="statement not covered" >const wss = new WebSocketServer({ noServer: true });</span>
&nbsp;
// 客户端连接管理
<span class="cstat-no" title="statement not covered" >const clients = new Map&lt;string, WebSocket&gt;();</span>
&nbsp;
// ============ 客户端管理 ============
&nbsp;
/**
 * 注册客户端连接
 */
<span class="cstat-no" title="statement not covered" >export function addClient(clientId: string, ws: WebSocket) {</span>
<span class="cstat-no" title="statement not covered" >  clients.set(clientId, ws);</span>
<span class="cstat-no" title="statement not covered" >  console.log(`[WS] 客户端连接: ${clientId}, 当前在线: ${clients.size}`);</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
/**
 * 移除客户端连接
 */
<span class="cstat-no" title="statement not covered" >export function removeClient(clientId: string) {</span>
<span class="cstat-no" title="statement not covered" >  clients.delete(clientId);</span>
<span class="cstat-no" title="statement not covered" >  console.log(`[WS] 客户端断开: ${clientId}, 当前在线: ${clients.size}`);</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
/**
 * 通过 clientId 发送消息
 */
<span class="cstat-no" title="statement not covered" >export function sendToClient(clientId: string, event: string, data: any): boolean {</span>
<span class="cstat-no" title="statement not covered" >  const ws = clients.get(clientId);</span>
<span class="cstat-no" title="statement not covered" >  if (!ws || ws.readyState !== WebSocket.OPEN) {</span>
<span class="cstat-no" title="statement not covered" >    return false;</span>
<span class="cstat-no" title="statement not covered" >  }</span>
<span class="cstat-no" title="statement not covered" >  try {</span>
<span class="cstat-no" title="statement not covered" >    ws.send(JSON.stringify({ event, data }));</span>
<span class="cstat-no" title="statement not covered" >    return true;</span>
<span class="cstat-no" title="statement not covered" >  } catch (error) {</span>
<span class="cstat-no" title="statement not covered" >    console.error(`[WS] 发送消息失败: ${clientId}`, error);</span>
<span class="cstat-no" title="statement not covered" >    return false;</span>
<span class="cstat-no" title="statement not covered" >  }</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
/**
 * 广播消息到所有客户端
 */
<span class="cstat-no" title="statement not covered" >export function broadcast(event: string, data: any) {</span>
<span class="cstat-no" title="statement not covered" >  const message = JSON.stringify({ event, data });</span>
<span class="cstat-no" title="statement not covered" >  clients.forEach((ws, clientId) =&gt; {</span>
<span class="cstat-no" title="statement not covered" >    if (ws.readyState === WebSocket.OPEN) {</span>
<span class="cstat-no" title="statement not covered" >      try {</span>
<span class="cstat-no" title="statement not covered" >        ws.send(message);</span>
<span class="cstat-no" title="statement not covered" >      } catch (error) {</span>
<span class="cstat-no" title="statement not covered" >        console.error(`[WS] 广播失败: ${clientId}`, error);</span>
<span class="cstat-no" title="statement not covered" >      }</span>
<span class="cstat-no" title="statement not covered" >    }</span>
<span class="cstat-no" title="statement not covered" >  });</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
// ============ 事件推送 ============
&nbsp;
/**
 * 推送音频生成完成事件
 */
<span class="cstat-no" title="statement not covered" >export function pushAudioGenerationComplete(bookId: string, chapterId: number, status: 'completed' | 'failed') {</span>
<span class="cstat-no" title="statement not covered" >  const event = 'audio_generation_complete';</span>
<span class="cstat-no" title="statement not covered" >  const data = { bookId, chapterId, status };</span>
<span class="cstat-no" title="statement not covered" >  console.log(`[WS] 推送 ${event}:`, data);</span>
  // 广播给所有客户端（前端可根据 bookId 过滤）
<span class="cstat-no" title="statement not covered" >  broadcast(event, data);</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
/**
 * 推送视频生成完成事件
 */
<span class="cstat-no" title="statement not covered" >export function pushVideoGenerationComplete(bookId: string, chapterId: number, status: 'completed' | 'failed') {</span>
<span class="cstat-no" title="statement not covered" >  const event = 'video_generation_complete';</span>
<span class="cstat-no" title="statement not covered" >  const data = { bookId, chapterId, status };</span>
<span class="cstat-no" title="statement not covered" >  console.log(`[WS] 推送 ${event}:`, data);</span>
<span class="cstat-no" title="statement not covered" >  broadcast(event, data);</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
/**
 * 推送批量生成进度
 */
<span class="cstat-no" title="statement not covered" >export function pushBatchGenerationProgress(taskId: string, step: string, progress: number) {</span>
<span class="cstat-no" title="statement not covered" >  const event = 'batch_generation_progress';</span>
<span class="cstat-no" title="statement not covered" >  const data = { taskId, step, progress };</span>
<span class="cstat-no" title="statement not covered" >  broadcast(event, data);</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
// ============ 初始化 ============
&nbsp;
/**
 * 初始化 WebSocket 服务
 */
<span class="cstat-no" title="statement not covered" >export function initWebSocket(server: HttpServer) {</span>
  // 处理 HTTP upgrade 请求
<span class="cstat-no" title="statement not covered" >  server.on('upgrade', (request, socket, head) =&gt; {</span>
<span class="cstat-no" title="statement not covered" >    const url = new URL(request.url || '', `http://${request.headers.host}`);</span>
&nbsp;
    // 只处理 /ws 路径的连接
<span class="cstat-no" title="statement not covered" >    if (url.pathname !== '/ws') {</span>
<span class="cstat-no" title="statement not covered" >      socket.destroy();</span>
<span class="cstat-no" title="statement not covered" >      return;</span>
<span class="cstat-no" title="statement not covered" >    }</span>
&nbsp;
<span class="cstat-no" title="statement not covered" >    wss.handleUpgrade(request, socket, head, (ws) =&gt; {</span>
      // 从 query 参数获取 clientId
<span class="cstat-no" title="statement not covered" >      const clientId = url.searchParams.get('clientId') || 'anonymous';</span>
<span class="cstat-no" title="statement not covered" >      addClient(clientId, ws);</span>
&nbsp;
<span class="cstat-no" title="statement not covered" >      ws.on('close', () =&gt; {</span>
<span class="cstat-no" title="statement not covered" >        removeClient(clientId);</span>
<span class="cstat-no" title="statement not covered" >      });</span>
&nbsp;
<span class="cstat-no" title="statement not covered" >      ws.on('error', (error) =&gt; {</span>
<span class="cstat-no" title="statement not covered" >        console.error(`[WS] 客户端错误: ${clientId}`, error);</span>
<span class="cstat-no" title="statement not covered" >        removeClient(clientId);</span>
<span class="cstat-no" title="statement not covered" >      });</span>
&nbsp;
      // 发送连接成功消息
<span class="cstat-no" title="statement not covered" >      ws.send(JSON.stringify({ event: 'connected', data: { clientId } }));</span>
<span class="cstat-no" title="statement not covered" >    });</span>
<span class="cstat-no" title="statement not covered" >  });</span>
&nbsp;
<span class="cstat-no" title="statement not covered" >  console.log('[WS] WebSocket 服务已初始化，挂载于 /ws 路径');</span>
<span class="cstat-no" title="statement not covered" >}</span>
&nbsp;
// 导出 wss 实例供外部使用
export { wss };</pre></td></tr></table></pre>

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