const jwt = require('jsonwebtoken');
const fs = require('fs');
const path = require('path');
const router = require('express').Router();
const crypto = require('crypto');

router.post('/', (req, res) => {
  if (!req.body.name || !req.body.id) {
    return res.status(400).json({ error: 'Bad Request. The request cannot be fulfilled due to bad syntax or missing parameters.' });
  }

const token = crypto.randomBytes(512).toString('base64')
  .replace(/\+/g, '0')
  .replace(/\//g, '1')
  .substring(0, 256);
  fs.readFile(path.join(__dirname, '../../../data', 'user.json'), 'utf8', (err, data) => {
    if (err) {
      console.error(err);
      return res.sendStatus(500);
    }

    const users = JSON.parse(data);

    const user = users.find(u => u.name === req.body.name && u.id === req.body.id);

    if (!user) return res.sendStatus(404);

    user.token = token;

    fs.writeFile(path.join(__dirname, '../../../data', 'user.json'), JSON.stringify(users, null, 2), (err) => {
      if (err) {
        console.error(err);
        return res.sendStatus(500);
      }

      res.json({ token: token });
    });
  });
});

module.exports = router;