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// 导入必要的模块
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const express = require('express');
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const cors = require('cors');
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const dotenv = require('dotenv');
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const path = require('path');
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// 导入数据库配置
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const { testConnection } = require('./config/database');
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// 导入中间件
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const { notFound, errorHandler } = require('./middleware/errorHandler');
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// 导入响应工具
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const { success } = require('./utils/response');
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// 加载环境变量
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dotenv.config();
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// 创建Express应用
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const app = express();
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// ========================================
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// 中间件配置
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// ========================================
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// CORS跨域配置（允许前端访问）
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app.use(cors());
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// 解析JSON格式的请求体
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app.use(express.json());
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// 解析URL编码的请求体
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app.use(express.urlencoded({ extended: true }));
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// 静态文件服务（用于访问上传的图片等）
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app.use('/uploads', express.static(path.join(__dirname, 'uploads')));
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// 请求日志中间件（开发环境）
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if (process.env.NODE_ENV === 'development') {
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app.use((req, res, next) => {
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console.log(`📨 ${req.method} ${req.path}`);
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next();
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});
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}
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// ========================================
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// 路由配置
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// ========================================
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// 根路由 - API欢迎信息
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app.get('/', (req, res) => {
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res.json(success({
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name: '智能餐饮管理系统API',
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version: '1.0.0',
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description: '提供完整的餐厅管理功能',
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status: 'running',
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endpoints: {
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auth: '/api/auth - 用户认证',
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dishes: '/api/dishes - 菜品管理',
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menus: '/api/menus - 菜单管理',
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orders: '/api/orders - 订单管理',
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inventory: '/api/inventory - 库存管理',
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reservations: '/api/reservations - 预订管理',
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members: '/api/members - 会员管理',
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payments: '/api/payments - 支付结算',
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analytics: '/api/analytics - 数据分析'
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}
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}, '欢迎使用智能餐饮管理系统'));
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});
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// 健康检查路由
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app.get('/health', (req, res) => {
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res.json(success({
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status: 'OK',
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timestamp: new Date(),
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uptime: process.uptime(), // 服务器运行时间（秒）
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environment: process.env.NODE_ENV || 'development'
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}));
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});
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// API路由前缀
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const API_PREFIX = '/api';
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// 导入路由
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const authRoutes = require('./routes/authRoutes');
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const dishRoutes = require('./routes/dishRoutes');
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const menuRoutes = require('./routes/menuRoutes');
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const orderRoutes = require('./routes/orderRoutes');
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const inventoryRoutes = require('./routes/inventoryRoutes');
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const reservationRoutes = require('./routes/reservationRoutes');
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const memberRoutes = require('./routes/memberRoutes');
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const paymentRoutes = require('./routes/paymentRoutes');
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const analyticsRoutes = require('./routes/analyticsRoutes');
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// 注册路由
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app.use(`${API_PREFIX}/auth`, authRoutes);
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app.use(`${API_PREFIX}/dishes`, dishRoutes);
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app.use(`${API_PREFIX}/menus`, menuRoutes);
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app.use(`${API_PREFIX}/orders`, orderRoutes);
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app.use(`${API_PREFIX}/inventory`, inventoryRoutes);
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app.use(`${API_PREFIX}/reservations`, reservationRoutes);
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app.use(`${API_PREFIX}/members`, memberRoutes);
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app.use(`${API_PREFIX}/payments`, paymentRoutes);
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app.use(`${API_PREFIX}/analytics`, analyticsRoutes);
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// TODO: 后续将在这里引入其他功能模块的路由
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// 例如：
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// app.use(`${API_PREFIX}/orders`, orderRoutes);
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// app.use(`${API_PREFIX}/reservations`, reservationRoutes);
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// ========================================
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// 错误处理
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// ========================================
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// 404错误处理（放在所有路由之后）
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app.use(notFound);
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// 全局错误处理中间件（必须放在最后）
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app.use(errorHandler);
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// ========================================
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// 启动服务器
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// ========================================
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const PORT = process.env.PORT || 5000;
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// 异步启动函数
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const startServer = async () => {
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try {
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// 测试数据库连接
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console.log('🔍 正在测试数据库连接...');
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const dbConnected = await testConnection();
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if (!dbConnected) {
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console.error('❌ 数据库连接失败，服务器启动中止');
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console.error('💡 请检查：');
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console.error(' 1. MySQL是否已启动');
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console.error(' 2. .env文件中的数据库配置是否正确');
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console.error(' 3. 数据库restaurant_db是否已创建');
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process.exit(1); // 退出程序
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}
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// 启动HTTP服务器
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app.listen(PORT, () => {
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console.log('╔══════════════════════════════════════════╗');
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console.log('║ 智能餐饮管理系统 - 后端服务器已启动 ║');
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console.log('╚══════════════════════════════════════════╝');
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console.log(`🚀 服务器地址: http://localhost:${PORT}`);
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console.log(`📝 环境模式: ${process.env.NODE_ENV || 'development'}`);
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console.log(`💾 数据库: ${process.env.DB_NAME}`);
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console.log('');
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console.log('📡 可用的API端点:');
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console.log(` GET / - API欢迎页面`);
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console.log(` GET /health - 健康检查`);
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console.log('');
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console.log('⌨️ 按 Ctrl+C 停止服务器');
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console.log('════════════════════════════════════════════');
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});
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} catch (error) {
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console.error('❌ 服务器启动失败:', error.message);
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process.exit(1);
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}
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};
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// 优雅关闭
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process.on('SIGTERM', () => {
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console.log('\n👋 收到SIGTERM信号，正在关闭服务器...');
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process.exit(0);
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});
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process.on('SIGINT', () => {
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console.log('\n👋 收到SIGINT信号，正在关闭服务器...');
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process.exit(0);
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});
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// 启动服务器
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startServer();
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// 导出app供测试使用
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module.exports = app;
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