const BasicAuth = require('passport-http').BasicStrategy
const bCrypt = require('bcrypt-nodejs')
const users = require('../models').Users

/**
 * Compare bcrypt password
 * @param {Object} user
 * @param {String} password
 * @returns {Boolean}
 */
let isValidPassword = function (user, password) {
  return bCrypt.compareSync(password, user.password)
}

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

  passport.deserializeUser(
    function (id, done) {
      users.findById(id)
        .then(user => {
          if (!user) {
            done(new Error('No user found'), user)
            return false
          }
          done(null, user)
        })
        .catch(e => {
          done(e, null)
        })
    }
  )

  passport.use(
    'basic-auth', new BasicAuth({
      usernameField: 'email',
      passwordField: 'password',
      passReqToCallback: true
    },
    function (req, email, password, done) {
      users.find({
        where: {
          email: email
        }
      })
        .then(user => {
          if (!user) {
            done(new Error('No user found'))
            return false
          }
          if (!isValidPassword(user, password)) {
            return done(null, false, {
              message: 'Invalid password'
            })
          }
          return done(null, user)
        })
        .catch(e => {
          done(e, null)
        })
    })
  )
}