web/apps/scandic-web/components/HotelReservation/SelectRate/RoomsContainer/RateSummary/utils.ts

import type { Price } from "@/types/components/hotelReservation/price"
import {
  type RoomPackage,
  RoomPackageCodeEnum,
} from "@/types/components/hotelReservation/selectRate/roomFilter"
import type { Rate } from "@/types/components/hotelReservation/selectRate/selectRate"

export const calculateTotalPrice = (
  selectedRateSummary: Rate[],
  isUserLoggedIn: boolean,
  petRoomPackage: RoomPackage | undefined
) => {
  return selectedRateSummary.reduce<Price>(
    (total, room, idx) => {
      const rate =
        isUserLoggedIn && room.member && idx + 1 === 1
          ? room.member
          : room.public

      if (!rate) {
        return total
      }

      const isPetRoom = room.features.find(
        (feature) => feature.code === RoomPackageCodeEnum.PET_ROOM
      )

      let petRoomPrice = 0
      if (
        petRoomPackage &&
        isPetRoom &&
        room.package === RoomPackageCodeEnum.PET_ROOM
      ) {
        petRoomPrice = Number(petRoomPackage.localPrice.totalPrice)
      }

      const regularPrice = rate.localPrice.regularPricePerStay
        ? (total.local.regularPrice || 0) +
          (rate.localPrice.regularPricePerStay || 0)
        : undefined

      return {
        local: {
          currency: rate.localPrice.currency,
          price:
            total.local.price + rate.localPrice.pricePerStay + petRoomPrice,
          regularPrice,
        },
        requested: rate.requestedPrice
          ? {
              currency: rate.requestedPrice.currency,
              price:
                (total.requested?.price ?? 0) +
                rate.requestedPrice.pricePerStay +
                petRoomPrice,
            }
          : undefined,
      }
    },
    {
      local: {
        currency: (selectedRateSummary[0].public?.localPrice.currency ||
          selectedRateSummary[0].member?.localPrice.currency)!,
        price: 0,
        regularPrice: undefined,
      },
      requested: undefined,
    }
  )
}