var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const {specs, swaggerUi} = require('./config/swagger');  // 引入 swagger 配置
const cors = require('cors');
const bodyParser = require('body-parser');

// region api导入
var commonRouter = require('./routes/common');
var captchaRouter = require('./routes/captcha');
var authRouter = require('./routes/auth');
var smsRouter = require('./routes/sms');
var mallRouter = require('./routes/mall');
var programRouter = require('./routes/program');
var uploadRouter = require('./routes/upload')
// endregion

var app = express();

// 中间件配置
// CORS配置 - 允许前端访问静态资源
app.use(cors({
    origin: [
        'http://localhost:5173',
        'http://localhost:5176',
        'http://localhost:5175',
        'http://localhost:5174',
        'http://localhost:3001',
        'https://www.zrbjr.com',
        'https://zrbjr.com'
    ],
    credentials: true,
    methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
    allowedHeaders: ['Content-Type', 'Authorization', 'X-Requested-With']
}));
app.use(bodyParser.json({ limit: '10mb' }));
app.use(bodyParser.urlencoded({ extended: true, limit: '10mb' }));

// 静态文件服务 - 必须在API路由之前
// 为uploads路径配置CORS和静态文件服务
app.use('/uploads', express.static(path.join(__dirname, 'uploads'), {
    setHeaders: (res, filePath) => {
        // 设置CORS头部
        res.setHeader('Access-Control-Allow-Origin', '*');
        res.setHeader('Access-Control-Allow-Methods', 'GET, OPTIONS');
        res.setHeader('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');

        // 设置缓存和内容类型
        if (filePath.endsWith('.jpg') || filePath.endsWith('.jpeg')) {
            res.setHeader('Content-Type', 'image/jpeg');
        } else if (filePath.endsWith('.png')) {
            res.setHeader('Content-Type', 'image/png');
        } else if (filePath.endsWith('.gif')) {
            res.setHeader('Content-Type', 'image/gif');
        } else if (filePath.endsWith('.webp')) {
            res.setHeader('Content-Type', 'image/webp');
        }
        res.setHeader('Cache-Control', 'public, max-age=86400'); // 1天缓存
    }
}));

app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(specs)); // swagger

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({extended: false}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// region api配置
app.use('/api/upload', uploadRouter)
app.use('/api/common', commonRouter)
app.use('/api/captcha', captchaRouter)
app.use('/api/auth', authRouter)
app.use('/api/sms', smsRouter)
app.use('/api/mall', mallRouter)
app.use('/api/program', programRouter)
// endregion

module.exports = app;