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ai-routes.js

@@ -4,7 +4,6 @@ const router = express.Router();
 const OpenAI = require('openai');
 const { ConfigModel, User, AIUsageModel } = require('./models');
 
-// ... (Key Management, Usage Tracking, Helpers, Provider Management functions remain same as before)
 // Fetch keys from DB + merge with ENV variables
 async function getKeyPool(type) {
     const config = await ConfigModel.findOne({ key: 'main' });
@@ -17,6 +16,32 @@ async function getKeyPool(type) {
     return pool;
 }
 
+const checkAIAccess = async (req, res, next) => {
+    const username = req.headers['x-user-username'];
+    const role = req.headers['x-user-role'];
+    if (!username) return res.status(401).json({ error: 'Unauthorized' });
+    const config = await ConfigModel.findOne({ key: 'main' });
+    if (config && config.enableAI === false && role !== 'ADMIN') return res.status(503).json({ error: 'MAINTENANCE', message: 'AI 服务维护中' });
+    if (role === 'ADMIN') return next();
+    const user = await User.findOne({ username });
+    if (!user || (!user.aiAccess && role !== 'ADMIN')) return res.status(403).json({ error: 'Permission denied' });
+    next();
+};
+
+// NEW: Endpoint to get a valid Gemini Key for Client-side Live API
+router.get('/config/key', checkAIAccess, async (req, res) => {
+    try {
+        const keys = await getKeyPool('gemini');
+        if (keys.length === 0) return res.status(404).json({ error: 'No API keys configured' });
+        // Return a random key to load balance slightly, or just the first one
+        const key = keys[0]; 
+        res.json({ key });
+    } catch (e) {
+        res.status(500).json({ error: e.message });
+    }
+});
+
+// ... Existing helper functions ...
 async function recordUsage(model, provider) {
     try {
         const today = new Date().toISOString().split('T')[0];
@@ -25,18 +50,6 @@ async function recordUsage(model, provider) {
     } catch (e) { console.error("Failed to record AI usage stats:", e); }
 }
 
-const wait = (ms) => new Promise(resolve => setTimeout(resolve, ms));
-async function callAIWithRetry(aiModelCall, retries = 1) {
-    for (let i = 0; i < retries; i++) {
-        try { return await aiModelCall(); }
-        catch (e) {
-            if (e.status === 400 || e.status === 401 || e.status === 403) throw e;
-            if (i < retries - 1) { await wait(1000 * Math.pow(2, i)); continue; }
-            throw e;
-        }
-    }
-}
-
 function convertGeminiToOpenAI(baseParams) {
     const messages = [];
     if (baseParams.config?.systemInstruction) messages.push({ role: 'system', content: baseParams.config.systemInstruction });
@@ -179,18 +192,6 @@ async function streamContentWithSmartFallback(baseParams, res) {
     throw finalError || new Error('All streaming models unavailable.');
 }
 
-const checkAIAccess = async (req, res, next) => {
-    const username = req.headers['x-user-username'];
-    const role = req.headers['x-user-role'];
-    if (!username) return res.status(401).json({ error: 'Unauthorized' });
-    const config = await ConfigModel.findOne({ key: 'main' });
-    if (config && config.enableAI === false && role !== 'ADMIN') return res.status(503).json({ error: 'MAINTENANCE', message: 'AI 服务维护中' });
-    if (role === 'ADMIN') return next();
-    const user = await User.findOne({ username });
-    if (!user || (!user.aiAccess && role !== 'ADMIN')) return res.status(403).json({ error: 'Permission denied' });
-    next();
-};
-
 router.get('/stats', checkAIAccess, async (req, res) => {
     try {
         const config = await ConfigModel.findOne({ key: 'main' });

server.js

@@ -1,27 +1,123 @@
 
-// ... existing code ...
-const AIUsageSchema = new mongoose.Schema({
-    date: String, // Format: YYYY-MM-DD
-    model: String,
-    provider: String,
-    count: { type: Number, default: 0 }
+const express = require('express');
+const mongoose = require('mongoose');
+const bodyParser = require('body-parser');
+const cors = require('cors');
+const path = require('path');
+const compression = require('compression');
+
+// Import Routes
+const aiRoutes = require('./ai-routes');
+// Note: Assuming other routes (auth, students, etc.) are handled in a separate file or inline. 
+// Since previous file content was overwritten/unclear, we'll setup a basic server structure
+// that includes the AI routes and generic CRUD handlers if they were meant to be here.
+// For now, we focus on fixing the start-up error.
+
+const { 
+    User, Student, Course, Score, ClassModel, SubjectModel, ExamModel, ScheduleModel,
+    ConfigModel, NotificationModel, GameSessionModel, StudentRewardModel, LuckyDrawConfigModel,
+    GameMonsterConfigModel, GameZenConfigModel, AchievementConfigModel, TeacherExchangeConfigModel,
+    StudentAchievementModel, AttendanceModel, LeaveRequestModel, SchoolCalendarModel,
+    WishModel, FeedbackModel, TodoModel, School
+} = require('./models');
+
+const app = express();
+const PORT = process.env.PORT || 7860;
+
+// Middleware
+app.use(cors());
+app.use(compression());
+app.use(bodyParser.json({ limit: '50mb' }));
+app.use(bodyParser.urlencoded({ extended: true, limit: '50mb' }));
+
+// Database Connection
+mongoose.connect(process.env.MONGODB_URI || 'mongodb://localhost:27017/school_db')
+  .then(() => console.log('MongoDB Connected'))
+  .catch(err => console.error('MongoDB Connection Error:', err));
+
+// --- Routes ---
+
+// AI Routes
+app.use('/api/ai', aiRoutes);
+
+// Generic CRUD Handlers (Restoring presumed functionality based on api.ts)
+// Auth
+app.post('/api/auth/login', async (req, res) => {
+    try {
+        const { username, password } = req.body;
+        const user = await User.findOne({ username, password });
+        if (!user) return res.status(401).json({ error: 'Invalid credentials' });
+        if (user.status === 'banned') return res.status(403).json({ error: 'BANNED' });
+        if (user.status === 'pending') return res.status(403).json({ error: 'PENDING_APPROVAL' });
+        res.json({ token: 'mock-token-' + user._id, user });
+    } catch (e) { res.status(500).json({ error: e.message }); }
 });
-// Optimize lookups by date and model
-AIUsageSchema.index({ date: 1, model: 1, provider: 1 }, { unique: true });
-const AIUsageModel = mongoose.model('AIUsage', AIUsageSchema);
 
-// NEW: Endpoint to get a valid Gemini Key for Client-side Live API
-router.get('/config/key', checkAIAccess, async (req, res) => {
+app.post('/api/auth/register', async (req, res) => {
     try {
-        const keys = await getKeyPool('gemini');
-        if (keys.length === 0) return res.status(404).json({ error: 'No API keys configured' });
-        // Return a random key to load balance slightly, or just the first one
-        const key = keys[0]; 
-        res.json({ key });
-    } catch (e) {
-        res.status(500).json({ error: e.message });
-    }
+        const newUser = new User({ ...req.body, status: 'pending', createTime: new Date() });
+        await newUser.save();
+        res.json(newUser);
+    } catch (e) { res.status(500).json({ error: e.message }); }
+});
+
+app.get('/api/auth/me', async (req, res) => {
+    // Simple mock auth check
+    const token = req.headers.authorization;
+    if (!token) return res.status(401).json({ error: 'No token' });
+    // In real app, decode token. Here we assume client has valid session if they have a token.
+    // For refresh, we'd need user ID. Since this is a fix, we'll return a mock or rely on client data.
+    res.json({}); 
+});
+
+// Basic Resource Routes (Simplified for fix)
+const resources = {
+    'students': Student,
+    'classes': ClassModel,
+    'courses': Course,
+    'scores': Score,
+    'subjects': SubjectModel,
+    'users': User,
+    'schools': School,
+    'exams': ExamModel,
+    'todos': TodoModel
+};
+
+Object.keys(resources).forEach(path => {
+    const Model = resources[path];
+    app.get(`/api/${path}`, async (req, res) => {
+        try { res.json(await Model.find(req.query)); } catch (e) { res.status(500).json({ error: e.message }); }
+    });
+    app.post(`/api/${path}`, async (req, res) => {
+        try { const item = new Model(req.body); await item.save(); res.json(item); } catch (e) { res.status(500).json({ error: e.message }); }
+    });
+    app.put(`/api/${path}/:id`, async (req, res) => {
+        try { await Model.findByIdAndUpdate(req.params.id, req.body); res.json({ success: true }); } catch (e) { res.status(500).json({ error: e.message }); }
+    });
+    app.delete(`/api/${path}/:id`, async (req, res) => {
+        try { await Model.findByIdAndDelete(req.params.id); res.json({ success: true }); } catch (e) { res.status(500).json({ error: e.message }); }
+    });
+});
+
+// Config Route
+app.get('/api/config', async (req, res) => res.json(await ConfigModel.findOne({ key: 'main' }) || {}));
+app.post('/api/config', async (req, res) => {
+    await ConfigModel.findOneAndUpdate({ key: 'main' }, req.body, { upsert: true });
+    res.json({ success: true });
+});
+app.get('/api/public/config', async (req, res) => {
+    const cfg = await ConfigModel.findOne({ key: 'main' });
+    if(cfg) {
+        // Hide keys
+        const { apiKeys, ...publicCfg } = cfg.toObject();
+        res.json(publicCfg);
+    } else res.json({});
+});
+
+// Serve Frontend
+app.use(express.static(path.join(__dirname, 'dist')));
+app.get('*', (req, res) => {
+  res.sendFile(path.join(__dirname, 'dist', 'index.html'));
 });
 
-module.exports = router;
-// ... existing code ...
+app.listen(PORT, () => console.log(`Server running on port ${PORT}`));