feat(SW-718) updates after PR comments

stores/select-rate/helper.ts

@@ -0,0 +1,58 @@
+import { RoomPackageCodeEnum } from "@/types/components/hotelReservation/selectRate/roomFilter"
+import type {
+  Rate,
+  RateCode,
+} from "@/types/components/hotelReservation/selectRate/selectRate"
+import type { RateSummaryParams } from "./rate-selection"
+
+interface CalculateRoomSummaryParams extends RateSummaryParams {
+  selectedRate: RateCode
+  roomIndex: number
+}
+
+export function calculateRoomSummary({
+  selectedRate,
+  roomIndex,
+  getFilteredRooms,
+  availablePackages,
+  roomCategories,
+  selectedPackagesByRoom,
+}: CalculateRoomSummaryParams): Rate | null {
+  const filteredRooms = getFilteredRooms(roomIndex)
+  const selectedPackages = selectedPackagesByRoom[roomIndex] || []
+
+  const room = filteredRooms.find(
+    (room) => room.roomTypeCode === selectedRate.roomTypeCode
+  )
+  if (!room) return null
+
+  const product = room.products.find(
+    (product) =>
+      product.productType.public.rateCode === selectedRate.publicRateCode
+  )
+  if (!product) return null
+
+  const petRoomPackage = selectedPackages.includes(RoomPackageCodeEnum.PET_ROOM)
+    ? availablePackages.find((pkg) => pkg.code === RoomPackageCodeEnum.PET_ROOM)
+    : undefined
+
+  const features = filteredRooms.find((room) =>
+    room.features.some(
+      (feature) => feature.code === RoomPackageCodeEnum.PET_ROOM
+    )
+  )?.features
+
+  const roomType = roomCategories.find((roomCategory) =>
+    roomCategory.roomTypes.some((type) => type.code === room.roomTypeCode)
+  )
+
+  return {
+    features: petRoomPackage && features ? features : [],
+    priceName: selectedRate.name,
+    priceTerm: selectedRate.paymentTerm,
+    public: product.productType.public,
+    member: product.productType.member,
+    roomType: roomType?.name ?? room.roomType,
+    roomTypeCode: room.roomTypeCode,
+  }
+}