import { BookingStatusEnum } from "@/constants/booking"
import { dt } from "@/lib/dt"

import { formatChildBedPreferences } from "../utils"
import { convertToChildType } from "./convertToChildType"
import { getPriceType } from "./getPriceType"
import { getBreakfastPackagesFromBookingFlow } from "./hasBreakfastPackage"

import type { BreakfastPackage } from "@/types/components/hotelReservation/breakfast"
import { RoomPackageCodeEnum } from "@/types/components/hotelReservation/selectRate/roomFilter"
import { BreakfastPackageEnum } from "@/types/enums/breakfast"
import { PackageTypeEnum } from "@/types/enums/packages"
import type { Room } from "@/types/hotel"
import type { BookingConfirmation } from "@/types/trpc/routers/booking/confirmation"
import type { Room as MyStayRoom } from "@/stores/my-stay/myStayRoomDetailsStore"

interface MapRoomDetailsParams {
  booking: BookingConfirmation["booking"]
  room: (Room & { bedType: Room["roomTypes"][number] }) | null
  roomNumber: number
}

export function mapRoomDetails({
  booking,
  room,
  roomNumber,
}: MapRoomDetailsParams): MyStayRoom {
  const nights = dt(booking.checkOutDate)
    .startOf("day")
    .diff(dt(booking.checkInDate).startOf("day"), "days")

  const breakfastPackages = getBreakfastPackagesFromBookingFlow(
    booking.packages
  )
  const featuresPackages = booking.packages.filter(
    (pkg) =>
      pkg.code === RoomPackageCodeEnum.PET_ROOM ||
      pkg.code === RoomPackageCodeEnum.ALLERGY_ROOM ||
      pkg.code === RoomPackageCodeEnum.ACCESSIBILITY_ROOM
  )

  const breakfast: BreakfastPackage | null = breakfastPackages?.length
    ? {
        code: BreakfastPackageEnum.REGULAR_BREAKFAST,
        description: breakfastPackages[0].description,
        localPrice: {
          currency: breakfastPackages[0].currency,
          price: breakfastPackages.reduce(
            (acc, curr) => acc + curr.unitPrice,
            0
          ),
          totalPrice: breakfastPackages.reduce(
            (acc, curr) => acc + curr.totalPrice,
            0
          ),
        },
        requestedPrice: {
          currency: breakfastPackages[0].currency,
          price: breakfastPackages.reduce(
            (acc, curr) => acc + curr.unitPrice,
            0
          ),
          totalPrice: breakfastPackages.reduce(
            (acc, curr) => acc + curr.totalPrice,
            0
          ),
        },
        packageType: PackageTypeEnum.BreakfastAdult,
      }
    : null

  const isCancelled = booking.reservationStatus === BookingStatusEnum.Cancelled

  const childrenAsString = formatChildBedPreferences({
    childrenAges: booking.childrenAges,
    childBedPreferences: booking.childBedPreferences,
  })

  const childrenInRoom = convertToChildType(
    booking.childrenAges,
    booking.childBedPreferences
  )

  const priceType = getPriceType(
    booking.cheques,
    booking.roomPoints,
    booking.vouchers
  )

  return {
    hotelId: booking.hotelId,
    roomTypeCode: booking.roomTypeCode,
    adults: booking.adults,
    childrenAges: booking.childrenAges,
    checkInDate: booking.checkInDate,
    checkOutDate: booking.checkOutDate,
    confirmationNumber: booking.confirmationNumber,
    cancellationNumber: booking.cancellationNumber,
    createDateTime: booking.createDateTime,
    rateDefinition: booking.rateDefinition,
    guaranteeInfo: booking.guaranteeInfo,
    linkedReservations: booking.linkedReservations,
    bookingCode: booking.bookingCode,
    cheques: booking.cheques,
    vouchers: booking.vouchers,
    isCancelable: booking.isCancelable,
    multiRoom: booking.multiRoom,
    canChangeDate: booking.canChangeDate,
    guest: booking.guest,
    currencyCode: booking.currencyCode,
    vatPercentage: booking.vatPercentage,
    mainRoom: booking.mainRoom,
    roomName: room?.name ?? "",
    roomNumber,
    isCancelled,
    childrenInRoom,
    childrenAsString,
    terms: booking.rateDefinition.cancellationText,
    packages: featuresPackages.map((pkg) => ({
      code: pkg.code as RoomPackageCodeEnum,
      description: pkg.description,
      inventories: [],
      itemCode: "",
      localPrice: {
        currency: pkg.currency,
        price: pkg.unitPrice,
        totalPrice: pkg.totalPrice,
      },
      requestedPrice: {
        currency: pkg.currency,
        price: pkg.unitPrice,
        totalPrice: pkg.totalPrice,
      },
    })),
    bedType: {
      description: room?.bedType.mainBed.description ?? "",
      roomTypeCode: room?.bedType.code ?? "",
    },
    roomPoints: booking.roomPoints,
    roomPrice: {
      perNight: {
        local: {
          currency: booking.currencyCode,
          price: isCancelled ? 0 : booking.roomPrice / nights,
        },
        requested: undefined,
      },
      perStay: {
        local: {
          currency: booking.currencyCode,
          price: isCancelled ? 0 : booking.roomPrice,
        },
        requested: undefined,
      },
    },
    totalPriceExVat: booking.totalPriceExVat,
    totalPrice: booking.totalPrice,
    vatAmount: booking.vatAmount,
    breakfast,
    priceType,
  }
}