import { HotelProduct, Hotel, transformProduct as transformHotel } from './hotel-utils'; import { AirlineProduct, Flight, transformProduct as transformFlight } from './airline-utils'; export type Product = Hotel | Flight; export type ProductRaw = HotelProduct | AirlineProduct; export const isHotelProduct = (p: ProductRaw): p is HotelProduct => { return 'room_type' in p; }; export const isAirlineProduct = (p: ProductRaw): p is AirlineProduct => { return 'flight_type' in p; }; export const transformProduct = (p: ProductRaw): Product => { if (isHotelProduct(p)) { return transformHotel(p); } return transformFlight(p); }; export const getProductType = (p: Product): 'hotel' | 'airline' => { if ('roomType' in p) return 'hotel'; return 'airline'; };