import {z} from 'zod'

export type GetApiAnalyticsItineraryPriceMetricsArgs = {originIataCode: string, destinationIataCode: string, departureDate: string, currencyCode?: string | undefined, oneWay?: boolean | undefined};

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

export const warning = z.object({code: z.number().int(), title: z.string(), detail: z.string().optional(), source: z.object({parameter: z.string().optional(), pointer: z.string().optional(), example: z.string().optional()}).optional()});

export const itineraryPriceMetric = z.object({type: z.string().optional(), origin: z.object({iataCode: z.string().optional()}).optional(), destination: z.object({iataCode: z.string().optional()}).optional(), departureDate: z.string().optional(), transportType: z.literal("FLIGHT").optional(), currencyCode: z.string().optional(), oneWay: z.boolean().optional(), priceMetrics: z.array(z.object({amount: z.string().optional(), quartileRanking: z.enum(["MINIMUM", "FIRST", "MEDIUM", "THIRD", "MAXIMUM"]).optional()})).optional()});

export const getApiAnalyticsItineraryPriceMetricsResponse = z.object({warnings: z.array(warning).optional(), data: z.array(itineraryPriceMetric).optional(), meta: z.object({href: z.string().optional(), methods: z.array(z.enum(["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"])).optional()}).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 itinerary price metric
 * 
 * GET /analytics/itinerary-price-metrics
 */
export const getApiAnalyticsItineraryPriceMetrics = async (args: GetApiAnalyticsItineraryPriceMetricsArgs, options?: GetApiAnalyticsItineraryPriceMetricsOptions) => {
const {baseUrl = "https://test.api.amadeus.com/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args.originIataCode != null) query.append("originIataCode", String(args.originIataCode))
if (args.destinationIataCode != null) query.append("destinationIataCode", String(args.destinationIataCode))
if (args.departureDate != null) query.append("departureDate", String(args.departureDate))
if (args.currencyCode != null) query.append("currencyCode", String(args.currencyCode))
if (args.oneWay != null) query.append("oneWay", String(args.oneWay))

const url = `${baseUrl.replace(/\/+$/, '')}/analytics/itinerary-price-metrics${query.size > 0 ? `?${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(getApiAnalyticsItineraryPriceMetricsResponse, await res.json())
};