var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var cheer = require('cheerio');
var config = require('./config/index');
var axios = require('axios');

// 因为对方网站的域名经常变，导致爬虫无法爬数据，所以这里会在每次后端接口
// 刚启动的时候，自动从目标网站的 防失联 页面 抓取最新的
// 网站域名，然后保存到全局config中。
axios.get(config.pushUrl)
.then(function (response) {
  var $ = cheer.load(response.data)
  config.BaseUrl = `${$(".title + p>a").text()}/`
  // console.log("抓取到的网站最新域名为：", config.BaseUrl);
})

var indexRouter = require('./routes/index');
var agentRouter = require('./routes/agent');
var app = express();

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());



app.use('/api/json/', indexRouter);
app.use('/api/json/', agentRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
});

module.exports = app;