import type { RoomsAvailability } from "@/types/trpc/routers/hotel/roomAvailability"

export function combineRoomAvailabilities({
  availabilityResults,
}: {
  availabilityResults: Array<[RoomsAvailability | undefined | null, unknown]>
}): RoomsAvailability | null {
  return availabilityResults.reduce<RoomsAvailability | null>(
    (combinedResult, [currentResult, error]) => {
      if (error || !currentResult) return combinedResult
      if (!combinedResult) return currentResult

      return {
        ...currentResult,
        roomConfigurations: [
          ...combinedResult.roomConfigurations,
          ...currentResult.roomConfigurations,
        ],
      }
    },
    null
  )
}