补上丢掉的AI应答

server/server.js

@@ -108,12 +108,14 @@ app.get('/api/rooms/:roomId/messages', auth, (req, res) => {
   res.json(msgs);
 });
 
-// 发送消息（统一入口）
-app.post('/api/rooms/:roomId/messages', auth, (req, res) => {
+// 发送消息（统一入口，并触发 AI）
+app.post('/api/rooms/:roomId/messages', auth, async (req, res) => {
   const { text, attachments } = req.body;
   const roomId = req.params.roomId;
   const username = req.user.username;
   const timestamp = new Date().toLocaleString('zh-CN', { hour12: false });
+
+  // 存储消息
   const result = db.prepare('INSERT INTO messages (room_id, user, text, attachments, timestamp) VALUES (?,?,?,?,?)').run(
     roomId, username, text || '', attachments ? JSON.stringify(attachments) : null, timestamp
   );
@@ -134,7 +136,7 @@ app.post('/api/rooms/:roomId/messages', auth, (req, res) => {
     last_time: lastMsg ? lastMsg.timestamp : ''
   };
 
-  // 广播给房间内其他成员，但不包括发送者自己
+  // 广播给房间内其他成员（排除自己）
   broadcastToRoomExcludeSelf(roomId, username, {
     type: 'new_message',
     message: msg,
@@ -144,8 +146,20 @@ app.post('/api/rooms/:roomId/messages', auth, (req, res) => {
   // 加入对话历史
   addToHistory(roomId, 'user', `${username}: ${text || '图片'}`);
 
-  // 返回消息给发送者
+  // 先响应客户端
   res.json(msg);
+
+  // 异步触发 AI 分析
+  try {
+    const history = getHistory(roomId);
+    const historyMessages = history.map(e => ({ role: e.role, content: e.content }));
+    const aiResponse = await analyzeWithDeepSeek(text || '', historyMessages, username);
+    if (aiResponse && aiResponse.action !== 'ignore') {
+      handleAIResult(aiResponse, roomId, username, text || '', attachments || []);
+    }
+  } catch (e) {
+    console.error('AI 分析失败:', e);
+  }
 });
 
 app.post('/api/upload', auth, upload.single('file'), (req, res) => {
@@ -192,7 +206,7 @@ app.get('/api/rooms/:roomId/purchases/export', auth, (req, res) => {
 });
 
 // WebSocket 管理
-const clients = new Map(); // ws -> { username, roomId }
+const clients = new Map();
 
 wss.on('connection', (ws, req) => {
   console.log('✅ WebSocket 客户端已连接');
@@ -218,7 +232,7 @@ wss.on('connection', (ws, req) => {
         ws.roomId = msg.roomId;
         clients.set(ws, { username, roomId: msg.roomId });
       }
-      // 不再处理 message 类型，消息通过 HTTP API 发送
+      // 不再处理 message 类型
     } catch (e) {}
   });
 
@@ -227,7 +241,6 @@ wss.on('connection', (ws, req) => {
   });
 });
 
-// 广播给房间内所有成员，排除指定用户
 function broadcastToRoomExcludeSelf(roomId, excludeUsername, data) {
   const message = JSON.stringify(data);
   clients.forEach((info, ws) => {
@@ -237,7 +250,6 @@ function broadcastToRoomExcludeSelf(roomId, excludeUsername, data) {
   });
 }
 
-// 广播给房间内所有人
 function broadcastToRoom(roomId, data) {
   const message = JSON.stringify(data);
   clients.forEach((info, ws) => {
@@ -247,7 +259,6 @@ function broadcastToRoom(roomId, data) {
   });
 }
 
-// 全局广播
 function broadcast(data) {
   const message = JSON.stringify(data);
   clients.forEach((ws) => {
@@ -255,7 +266,7 @@ function broadcast(data) {
   });
 }
 
-// 内部消息存储并广播（用于 AI 回复等）
+// 内部消息存储并广播（用于 AI 回复）
 function storeAndBroadcastText(roomId, user, text) {
   const timestamp = new Date().toLocaleString('zh-CN', { hour12: false });
   const result = db.prepare('INSERT INTO messages (room_id, user, text, timestamp) VALUES (?,?,?,?)').run(roomId, user, text, timestamp);
@@ -285,7 +296,7 @@ function addToHistory(roomId, role, content) {
   if (history.length > 60) conversationHistory.set(roomId, history.slice(-40));
 }
 
-// AI 处理（保持原逻辑）
+// AI 分析
 async function analyzeWithDeepSeek(text, historyMessages, username) {
   const systemPrompt = `你是智能财务助手“小财”。结合对话历史理解用户意图。只返回JSON。
 
@@ -308,13 +319,16 @@ async function analyzeWithDeepSeek(text, historyMessages, username) {
     { role: 'user', content: `${username}: ${text}` }
   ];
 
+  console.log('🤖 调用 DeepSeek...');
   const res = await fetch('https://api.deepseek.com/chat/completions', {
     method: 'POST',
     headers: { 'Content-Type': 'application/json', 'Authorization': `Bearer ${DEEPSEEK_API_KEY}` },
     body: JSON.stringify({ model: 'deepseek-v4-flash', messages, temperature: 0.1, stream: false })
   });
   const data = await res.json();
-  return JSON.parse(data.choices[0].message.content.replace(/```json|```/g, '').trim());
+  const content = data.choices[0].message.content;
+  console.log('🤖 AI 返回:', content);
+  return JSON.parse(content.replace(/```json|```/g, '').trim());
 }
 
 function handleAIResult(aiResult, roomId, username, originalText, attachments) {