// server.js
const express = require('express');
const next = require('next');
const proxyMiddleware = require('http-proxy-middleware');
const { createProxyMiddleware } = require('http-proxy-middleware');

const devProxy = {
  '/api': {
    target: 'http://localhost:5789', // 端口自己配置合适的
    pathRewrite: {
      '^/api': '/'
    },
    changeOrigin: true
  }
};

const options = {
  target: 'https://movie.douban.com', // target host
  changeOrigin: true, // needed for virtual hosted sites
  ws: true, // proxy websockets
  pathRewrite: {
    '^/apis': '/' // remove base path
  }
  // router: {
  //   // when request.headers.host == 'dev.localhost:3000',
  //   // override target 'http://www.example.org' to 'http://localhost:8000'
  //   'https://movie.douban.com': 'http://localhost:5789',
  // },
};

const options2 = {
  target: 'https://img2.doubanio.com', // target host
  changeOrigin: true, // needed for virtual hosted sites
  ws: true, // proxy websockets
  pathRewrite: {
    '^/img2': '/' // remove base path
  }
  // router: {
  //   // when request.headers.host == 'dev.localhost:3000',
  //   // override target 'http://www.example.org' to 'http://localhost:8000'
  //   'https://movie.douban.com': 'http://localhost:5789',
  // },
};

const port = parseInt(process.env.PORT, 10) || 5789;
const dev = process.env.NODE_ENV !== 'production';
const app = next({
  dev
});
const handle = app.getRequestHandler();

app
  .prepare()
  .then(() => {
    const server = express();

    server.use('/apis', createProxyMiddleware(options));

    // if (dev && devProxy) {
    //     Object.keys(devProxy).forEach(function(context) {
    //         server.use(proxyMiddleware(context, devProxy[context]))
    //     })
    // }

    server.all('*', (req, res) => {
      // if(res.url == '/apis'){
      console.log(req.originalUrl);
      // }
      handle(req, res);
    });

    server.listen(port, err => {
      if (err) {
        throw err;
      }
      console.log(`> Ready on http://localhost:${port}`);
    });
  })
  .catch(err => {
    console.log('An error occurred, unable to start the server');
    console.log(err);
  });