const passport = require('passport')
const LocalStrategy = require('passport-local').Strategy
const Users = require('./db').Users

module.exports = function (passport) {
  console.log("passport is working");

  passport.serializeUser(function (users, done) {
    console.log("Serialize");
    done(null, users.id)
  })

  function findById(id, fn) {
    User.findOne(id).exec(function (err, user) {

      if (err) {
        return fn(null, null);
      } else {
        return fn(null, user);
      }
    });
  }

  passport.deserializeUser(function (id, done) {
    console.log("DeSerialize");
    findById(id, function (err, user) {
      console.log(user);
      done(err, user);
    });
  })

  passport.use(new LocalStrategy(
    function (username, password, done) {
      Users.findOne({ where: { username: username } },
        function (err, users) {
          if (err) { return done(err); }
          if (!users) {
            return done(null, false, { message: 'Incorrect username.' });
          }
          if (!users.validPassword(password)) {
            return done(null, false, { message: 'Incorrect password.' });
          }
          return done(null, users);
        });
    }
  ));
}

const db = new Sequelize(
  'mydb',
  'myuser',
  'mypass',
  {
    dialect: 'mysql',
    host: 'localhost',
    pool: {
      max: 8,
      min: 0,
      aquire: 30000,
      idle: 10000
    },
  }
);

const Users = db.define('users', {
  email: {
    type: Sequelize.STRING,
    allowNull: false,
    unique: true
  },
  username: {
    type: Sequelize.STRING,
    allowNull: false,
    unique: true,
  },
  password: {
    type: Sequelize.STRING,
    allowNull: false,
  }

})


db.sync().then(() => console.log("Database is ready"))

exports = module.exports = {
  db,
  Users
}

app.post('/login', passport.authenticate('local'),
function(req, res) {
    res.send({
        url:'/profile',
        username:req.body.username
    });
  });