import bcrypt from 'bcrypt';

const usersDB = {
  users: require('../model/users.json'),
  setUsers: function (data) {
    this.users = data;
  }
};

const handleLogin = async (req, res) => {
  const { user, pwd } = req.body;
  if (!user || !pwd) res.status(400).json({ message: 'Username and password are required.' });
  const foundUser = usersDB.users.find(person => person.username === user);
  if (!foundUser) return res.sendStatus(401); // unauthorized
  // evaluate password
  const match = await bcrypt.compare(pwd, foundUser.password);
  if (match) {
    // create JWTs
    res.json({ success: `User ${user} is logged in.` });
  } else {
    res.sendStatus(401);
  }
};

module.exports = { handleLogin };