const express = require('express');
const path = require('path');
const { port } = require("./config");
const db = require('./db/connect');
const { verToken } = require('./utils/token');
const cors = require('cors');
const log = require("./config/log");

const app = express();
//设置允许跨域访问该服务.
app.use(cors())
// 解析post body
const bodypraser = require('body-parser');
app.use(bodypraser.urlencoded({ extended: true }));
app.use(bodypraser.json())

// logger
app.all("*", async (req, res, next) => {
    //响应开始时间
    const start = new Date();
    //响应间隔时间
    var ms;
    try {
        //开始进入到下一个中间件
        await next();
        //记录响应日志
        ms = new Date() - start;
        log.i(req, ms);
    } catch (error) {
        //记录异常日志
        ms = new Date() - start;
        log.e(req, error, ms);
    }
    console.log(`${req.method} ${req.url} - ${ms}ms-${res.statusCode}`);
});

// 暴漏静态资源
app.use('/static', express.static(path.join(__dirname, '/static')))
// 路由
const userRouter = require('./router/userRouter');
const foodRouter = require('./router/foodRouter');
const foodTypeRouter = require('./router/foodTypeRouter');
const fileRouter = require('./router/fileRouter');
const langRouter = require('./router/langRouter');
const roleRouter = require('./router/roleRouter');
const permitRouter = require('./router/permitRouter');

app.use('/user', userRouter);
app.use('/role', (req, res, next) => {
    const { token } = req.headers
    verToken(token)
    .then(() => {
        next()
    })
    .catch((err) => {
        res.send(err)
    })
}, roleRouter);
app.use('/permit', (req, res, next) => {
    const { token } = req.headers
    verToken(token)
    .then(() => {
        next()
    })
    .catch((err) => {
        res.send(err)
    })
}, permitRouter);
app.use('/food', (req, res, next) => {
    const { token } = req.headers
    verToken(token)
    .then(() => {
        next()
    })
    .catch((err) => {
        res.send(err)
    })
}, foodRouter);
app.use('/foodType', (req, res, next) => {
    const { token } = req.headers
    verToken(token)
    .then(() => {
        next()
    })
    .catch((err) => {
        res.send(err)
    })
}, foodTypeRouter);
app.use('/file', (req, res, next) => {
    const { token } = req.headers
    verToken(token)
    .then(() => {
        next()
    })
    .catch((err) => {
        if (req._parsedUrl.pathname === '/file/downloadrar' || req._parsedUrl.pathname === '/file/uploadrar' || req._parsedUrl.pathname === '/file/downloadrar/remove') {
            next()
        }else {
           res.send(err) 
        }
    })
}, fileRouter);
app.use('/lang', (req, res, next) => {
    const { token } = req.headers
    verToken(token)
    .then(() => {
        next()
    })
    .catch((err) => {
        if (req._parsedUrl.pathname === '/lang/export/js' || req._parsedUrl.pathname === '/lang/export') {
            next()
        }else {
           res.send(err) 
        }
    })
}, langRouter);

app.listen(port, () => {
    console.log('http://localhost:6166/')
})