import {z} from 'zod'

export type GetApiConvTripsTripIdHotelFlightDiscountArgs = {trip_id: string, destination?: (string | null) | undefined, nights?: (number | null) | undefined, departure_date?: (string | null) | undefined};

export type GetApiConvTripsTripIdHotelFlightDiscountOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const money = z.object({amount: z.number().int(), currency: z.string()});

export const hotelFlightCashbackTarget = z.object({flight_booking_id: z.string(), flight_booking_session_id: z.string(), payment_intent_id: z.string(), maximum: money});

export const latLng = z.object({latitude: z.number().gte(-90).lte(90), longitude: z.number().gte(-180).lte(180)});

export const viewport = z.object({sw: latLng, ne: latLng});

export const tripHotelFlightDiscount = z.object({discount: money, destination: z.string().min(3).max(3).nullable().optional(), nights: z.number().int().gt(0), average_stay_total: money.nullable().optional(), sample_size: z.number().int().gte(1).nullable().optional(), sample_bounds: viewport.nullable().optional(), hotel_booking_id: z.string().nullable().optional(), cashback_target: hotelFlightCashbackTarget.nullable().optional(), cashback_status: z.enum(["pending", "processing", "refunded", "review_required"]).nullable().optional(), cashback_obligation_id: z.string().nullable().optional(), cashback_refund_id: z.string().nullable().optional()});

export const hotelInProgress = z.object({hotel_search_booking_session_id: z.string(), hotel_search_session_id: z.string().nullable().optional(), hotel_id: z.number().int(), hotel_name: z.string().nullable().optional(), check_in: z.string(), check_out: z.string(), checkout_step: z.string()});

export const tripHotelFlightDiscountResponse = z.object({money_back_offer_eligible: z.boolean().optional(), cashback_target: hotelFlightCashbackTarget.nullable().optional(), offer_set_id: z.string().nullable().optional(), hotel_flight_discount: tripHotelFlightDiscount.nullable().optional(), destination: z.string().nullable().optional(), nights: z.number().int().nullable().optional(), destination_city: z.string().nullable().optional(), flight_discount_eligible: z.boolean().optional(), flight_booked: z.boolean().nullable().optional(), hotel_in_progress: hotelInProgress.nullable().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Get Hotel Flight Discount
 * 
 * GET /conv/trips/{trip_id}/hotel-flight-discount
 */
export const getApiConvTripsTripIdHotelFlightDiscount = async (args: GetApiConvTripsTripIdHotelFlightDiscountArgs, options: GetApiConvTripsTripIdHotelFlightDiscountOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.destination != null) query.append("destination", String(args.destination))
if (args.nights != null) query.append("nights", String(args.nights))
if (args.departure_date != null) query.append("departure_date", String(args.departure_date))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/conv/trips/${encodeURIComponent(String(args.trip_id))}/hotel-flight-discount${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(tripHotelFlightDiscountResponse, await res.json())
};