[be] Add booking_price end point. (windingtree#113)

Author: Valera Rozuvan

api/_lib/app/booking/getBookingPrice.ts

@@ -0,0 +1,36 @@
+import { HotelRepo } from '../../data/hotel/HotelRepo'
+import { calculateOfferPrice } from '../../app/rate_modifier'
+
+import { RoomTypeRepo } from '../../data/room_type/RoomTypeRepo'
+
+import { CONSTANTS } from '../../common/constants'
+import { IHotel, IRoomType, IProfile, IGetBookingPricePayload, IBookingPrice } from '../../common/types'
+
+const { SUPER_ADMIN } = CONSTANTS.PROFILE_ROLE
+
+const hotelRepo = new HotelRepo()
+const roomTypeRepo = new RoomTypeRepo()
+
+async function getBookingPrice(requester: IProfile, data: IGetBookingPricePayload): Promise<IBookingPrice> {
+  let hotel: IHotel
+
+  if (requester.role === SUPER_ADMIN) {
+    hotel = await hotelRepo.readHotel(data.hotelId)
+  } else {
+    hotel = await hotelRepo.readHotelByOwnerId(data.hotelId, requester.id)
+  }
+
+  let roomType: IRoomType
+
+  if (requester.role === SUPER_ADMIN) {
+    roomType = await roomTypeRepo.readRoomType(data.roomTypeId)
+  } else {
+    roomType = await roomTypeRepo.readRoomTypeByHotelId(data.roomTypeId, requester.hotelId)
+  }
+
+  const price = await calculateOfferPrice(hotel, roomType, data.arrival, data.departure, roomType.price)
+
+  return { price }
+}
+
+export { getBookingPrice }

api/_lib/app/booking/index.ts

@@ -3,3 +3,4 @@ export { deleteBooking } from './deleteBooking'
 export { getAllBookings } from './getAllBookings'
 export { getBooking } from './getBooking'
 export { updateBooking } from './updateBooking'
+export { getBookingPrice } from './getBookingPrice'

api/_lib/app/orgid/offerSearch.ts

@@ -18,7 +18,7 @@ import {
   ILocationRectangleDbType,
   IOrgDetails
 } from '../../common/types'
-import { calculateOfferPrice } from "../rate_modifier/pricingEngine";
+import { calculateOfferPrice } from "../../app/rate_modifier";
 
 const moment = extendMoment(Moment)
 

api/_lib/app/rate_modifier/index.ts

@@ -3,3 +3,4 @@ export { deleteRateModifier } from './deleteRateModifier'
 export { getAllRateModifiers } from './getAllRateModifiers'
 export { getRateModifier } from './getRateModifier'
 export { updateRateModifier } from './updateRateModifier'
+export { calculateOfferPrice } from './pricingEngine'

api/_lib/common/types/api.ts

@@ -19,6 +19,7 @@ import {
   IRateModifier,
   IRateModifierCollection,
   IUploadImage,
+  IBookingPrice,
 } from '../types'
 
 type TAvailableResultTypes =
@@ -40,6 +41,7 @@ type TAvailableResultTypes =
   |IRateModifier
   |IRateModifierCollection
   |IUploadImage
+  |IBookingPrice
   |string
 
 type TMethodFunc = (request: NowRequest, response: NowResponse) => Promise<TAvailableResultTypes>

api/_lib/common/types/booking.ts

@@ -91,6 +91,17 @@ interface IPatchBookingPayloadDbData {
 
 type IBookingCollectionDbData = Array<IBookingDbData>
 
+interface IBookingPrice {
+  price: number
+}
+
+interface IGetBookingPricePayload {
+  hotelId: string
+  roomTypeId: string
+  arrival: string,
+  departure: string
+}
+
 export {
   TBookingDbDataFields,
   IBookingDbDataProjection,
@@ -103,4 +114,6 @@ export {
   IBookingDbData,
   IPatchBookingPayloadDbData,
   IBookingCollectionDbData,
+  IBookingPrice,
+  IGetBookingPricePayload,
 }

api/_lib/common/types/index.ts

@@ -38,6 +38,8 @@ export {
   IBookingDbData,
   IPatchBookingPayloadDbData,
   IBookingCollectionDbData,
+  IBookingPrice,
+  IGetBookingPricePayload,
 } from './booking'
 
 export {

api/_lib/interface/validators/Booking/getBookingPricePayloadValidator.ts

@@ -0,0 +1,55 @@
+import { NowRequest } from '@vercel/node'
+
+import { validateRequiredString } from '../../../interface/validators/_helpers'
+
+import { CONSTANTS } from '../../../common/constants'
+import { CError } from '../../../common/tools'
+import { IGetBookingPricePayload } from '../../../common/types'
+
+const { BAD_REQUEST } = CONSTANTS.HTTP_STATUS
+
+async function getBookingPricePayloadValidator(request: NowRequest): Promise<IGetBookingPricePayload> {
+  if (!request.body) {
+    throw new CError(BAD_REQUEST, 'Must provide a valid body with request.')
+  }
+
+  const payload: IGetBookingPricePayload = {
+    hotelId: '',
+    roomTypeId: '',
+    arrival: '',
+    departure: '',
+  }
+
+  const ALLOWED_PROPS: Array<keyof IGetBookingPricePayload> = [
+    'hotelId',
+    'roomTypeId',
+    'arrival',
+    'departure',
+  ]
+
+  for (const [key] of Object.entries(request.body)) {
+    if (!ALLOWED_PROPS.includes(key as keyof IGetBookingPricePayload)) {
+      throw new CError(BAD_REQUEST, `Property '${key}' on 'GET /booking_price' is not allowed.`)
+    }
+  }
+
+  const hotelId = request.body.hotelId
+  await validateRequiredString('hotelId', hotelId)
+  payload.hotelId = hotelId
+
+  const roomTypeId = request.body.roomTypeId
+  await validateRequiredString('roomTypeId', roomTypeId)
+  payload.roomTypeId = roomTypeId
+
+  const arrival = request.body.arrival
+  await validateRequiredString('arrival', arrival)
+  payload.arrival = arrival
+
+  const departure = request.body.departure
+  await validateRequiredString('departure', departure)
+  payload.departure = departure
+
+  return payload
+}
+
+export { getBookingPricePayloadValidator }

api/_lib/interface/validators/Booking/index.ts

@@ -1,2 +1,3 @@
 export { postBookingPayloadValidator } from './postBookingPayloadValidator'
 export { patchBookingPayloadValidator } from './patchBookingPayloadValidator'
+export { getBookingPricePayloadValidator } from './getBookingPricePayloadValidator'

api/_lib/interface/validators/index.ts

@@ -1,10 +1,17 @@
 export { postProfilePayloadValidator, patchProfilePayloadValidator } from './Profile'
 export { postHotelPayloadValidator, patchHotelPayloadValidator } from './Hotel'
 export { patchRoomTypePayloadValidator, postRoomTypePayloadValidator } from './RoomType'
-export { patchBookingPayloadValidator, postBookingPayloadValidator } from './Booking'
+export {
+  patchBookingPayloadValidator,
+  postBookingPayloadValidator,
+  getBookingPricePayloadValidator,
+} from './Booking'
 export { postLoginPayloadValidator } from './Login'
 export { postOneTimePasswordPayloadValidator } from './OneTimePassword'
 export { postCreateOrderPayloadValidator } from './Order'
 export { postJwtPayloadValidator } from './Jwt'
-export { patchRateModifierPayloadValidator, postRateModifierPayloadValidator } from './RateModifier'
+export {
+  patchRateModifierPayloadValidator,
+  postRateModifierPayloadValidator,
+} from './RateModifier'
 export { postUploadImagePayloadValidator } from './UploadImage'