import { BookingDocument } from '../../../../../db/booking'
import { getBookingByUUID } from '../../../../../db/index'
import withSession, { isAdminSession } from '../../../../../lib/session'
import {
  sendBookingConfirmed,
  sendBookingRejected,
} from '../../../../../helpers/mail'
import { BOOKING_STATUS } from '../../../../../db/enums'

export default withSession(async function bookingHandler(req, res) {
  if (!isAdminSession(req, res)) {
    res.status(403).send({ message: 'Not Authorized' })
    return
  }

  const {
    method,
    query: { uuid: uuids },
  } = req

  const uuid = Array.isArray(uuids) ? uuids[0] : uuids

  let booking: BookingDocument

  switch (method) {
    case 'PATCH':
      booking = await getBookingByUUID(uuid)

      // FIXME: validate all the things
      booking.set(req.body)

      const bookingStatusChanged = booking.isModified('status')

      await booking.save()

      await booking.populate('booker').execPopulate()

      res.status(200).json(booking.toJSON())

      if (!bookingStatusChanged) {
        return
      }

      if (booking.status === BOOKING_STATUS.CONFIRMED) {
        sendBookingConfirmed(booking)
        console.log(`Booking ${booking.uuid} confirm sent`)
      } else if (booking.status === BOOKING_STATUS.REJECTED) {
        sendBookingRejected(booking)
        console.log(`Booking ${booking.uuid} rejected sent`)
      }

      break
    default:
      res.setHeader('Allow', ['PATCH'])
      res.status(405).end(`Method ${method} Not Allowed`)
  }
})