// import passport from 'koa-passport';
import User from '../src/adapters/localdb/models/users.js'
import Strategy from 'passport-local'

async function passportCallback (email, password, done) {
  try {
    const user = await User.findOne({ email })
    if (!user) {
      return done(null, false)
    }

    try {
      const isMatch = await user.validatePassword(password)

      if (!isMatch) {
        return done(null, false)
      }

      done(null, user)
    } catch (err) {
      done(err)
    }
  } catch (err) {
    return done(err)
  }
}

function applyPassportMods (passport) {
  passport.serializeUser((user, done) => {
    done(null, user.id)
  })

  passport.deserializeUser(async (id, done) => {
    try {
      const user = await User.findById(id, '-password')
      done(null, user)
    } catch (err) {
      done(err)
    }
  })

  passport.use(
    'local',
    new Strategy(
      {
        usernameField: 'email',
        passwordField: 'password'
      },
      passportCallback
    )
  )

  return true
}

export { applyPassportMods, passportCallback }