var express = require('express');
var router = express.Router();

const user_controller = require("../controllers/userController");
const StringUtils = require("../utils/StringUtil");

/* GET home page. */
router.get('/', function (req, res, next) {
  const session = req.session;
  session['key'] = 'testvalue';
  console.log(session);
  res.setHeader('set-cookies', session['key']);
  res.send('test');
});

router.get('/user', async function (req, res, next) {
  console.log(req.session);
  console.log(req.session.account);
  if (req.session.account === null || req.session.account === '' || req.session.account === undefined) {
    res.send('not login');
    return;
  }
  let us = await user_controller.user_list();
  us = JSON.stringify(us);
  res.send(us);
})

router.post('/login', async function (req, res, next) {
  const body = req.body;
  if (!StringUtils.isNotEmpty(body)) {
    return res.json({ ret_code: -1, ret_msg: '登录失败' });
  }
  const { account, password } = body;

  if (account === '' || account === undefined || account === null) {
    return res.json({ ret_code: -1, ret_msg: '没有填写账号' });
  }
  if (password === '' || password === undefined || password === null) {
    return res.json({ ret_code: -1, ret_msg: '没有填写密码' });
  }

  const user = await user_controller.find_user_login(account);
  if (!user) {
    return res.json({ ret_code: -1, ret_msg: '账号不存在' })
  }

  if (user.password != password) {
    return res.json({ ret_code: -1, ret_msg: '密码错误' })
  }

  req.session.regenerate((err) => {
    if (err) {
      return res.json({ ret_code: -1, ret_msg: '登录失败' });
    }
    req.session.account = account;
    res.json({ ret_code: 0, ret_msg: '登录成功' });
  });
});

router.get('/logout', async function (req, res, next) {
  res.json({ ret_code: 1, ret_msg: '退出登录成功' });
});

module.exports = router;