const passport = require('passport');
const LocalStrategy = require('passport-local').Strategy;
const bcrypt = require('bcrypt');

const { User } = require('../models');

module.exports = () => {
  passport.serializeUser((user, done) => {
    done(null, user.id);
  });

  passport.deserializeUser(async (id, done) => {
    try {
      const user = await User.findOne({ where: { id } });
      done(null, user);
    } catch (err) {
      done(err);
    }
  });

  passport.use(new LocalStrategy({
    usernameField: 'email',
    passwordField: 'password',
  },
  async (email, password, done) => {
    try {
      const user = await User.findOne({ where: { email } });
      if (!user) {
        return done(null, false, { message: 'Incorrect email.' });
      }
      const isSamePassword = await bcrypt.compare(password, user.password);
      if (!isSamePassword) {
        return done(null, false, { message: 'Incorrect password.' });
      }
      return done(null, user);
    } catch (err) {
      return done(err);
    }
  }));
};