const express = require('express');
const cors = require('cors');
const path = require('path');
const authRoutes = require('./routes/auth');
const pdfRoutes = require('./routes/pdf');
const docsRoutes = require('./routes/docs');
const { authenticateToken } = require('./middleware/auth');

const app = express();
const PORT = process.env.PORT || 3001;
const FRONTEND_DIR = path.join(__dirname, '..', 'department-web', 'build');

// 中间件
app.use(cors());
app.use(express.json());
app.use(express.urlencoded({ extended: true }));

// 静态文件服务 - 用于提供PDF文件
app.use('/uploads', express.static(path.join(__dirname, 'uploads')));
app.use(express.static(FRONTEND_DIR));

// 路由
app.use('/api/auth', authRoutes);
app.use('/api/pdf', authenticateToken, pdfRoutes);
app.use('/api/docs', docsRoutes);

// 健康检查
app.get('/api/health', (req, res) => {
  res.json({ status: 'ok', message: 'API服务运行正常' });
});

app.get('*', (req, res, next) => {
  if (req.path.startsWith('/api')) return next();
  res.sendFile(path.join(FRONTEND_DIR, 'index.html'));
});

app.listen(PORT, () => {
  console.log(`服务器运行在端口 ${PORT}`);
});