import {z} from 'zod'

export type DateTimeType = {date: string, time?: string | undefined};

export type ExtendedOriginDestinationLight = {id?: string | undefined, originLocationCode?: string | undefined, destinationLocationCode?: string | undefined, includedConnectionPoints?: Array<string> | undefined, excludedConnectionPoints?: Array<string> | undefined, departureDateTime?: DateTimeType | undefined, arrivalDateTime?: DateTimeType | undefined};

export type TravelerType = 'ADULT' | 'CHILD' | 'SENIOR' | 'YOUNG' | 'HELD_INFANT' | 'SEATED_INFANT' | 'STUDENT';

export type TravelerInfo = {id: string, travelerType: TravelerType, associatedAdultId?: string | undefined};

export type FlightOfferSource = 'GDS';

export type CarrierRestrictions = {blacklistedInEUAllowed?: boolean | undefined, excludedCarrierCodes?: Array<string> | undefined, includedCarrierCodes?: Array<string> | undefined};

export type TravelClass = 'ECONOMY' | 'PREMIUM_ECONOMY' | 'BUSINESS' | 'FIRST';

export type CabinRestriction = {cabin?: TravelClass | undefined, originDestinationIds?: Array<string> | undefined};

export type ConnectionRestriction = {maxNumberOfConnections?: number | undefined, airportChangeAllowed?: boolean | undefined, technicalStopsAllowed?: boolean | undefined};

export type FlightFiltersLight = {carrierRestrictions?: CarrierRestrictions | undefined, cabinRestrictions?: Array<CabinRestriction> | undefined, connectionRestriction?: ConnectionRestriction | undefined};

export type ExtendedSearchCriteria = {excludeAllotments?: boolean | undefined, flightFilters?: FlightFiltersLight | undefined, includeClosedContent?: boolean | undefined, class?: string | undefined};

export type GetFlightAvailabilitiesQuery = {originDestinations: Array<ExtendedOriginDestinationLight>, travelers: Array<TravelerInfo>, sources: Array<FlightOfferSource>, searchCriteria?: ExtendedSearchCriteria | undefined};

export type CreateApiShoppingAvailabilityFlightAvailabilitiesArgs = {'X-HTTP-Method-Override': string, body: GetFlightAvailabilitiesQuery};

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

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

export const collectionMetaAvailSearch = z.object({count: z.number().int().optional()});

export const flightOfferSource = z.literal("GDS");

export const tourAllotment = z.object({tourName: z.string().optional(), tourReference: z.string().optional(), mode: z.enum(["FREE", "FORCED"]).optional(), remainingSeats: z.number().optional()});

export const availabilityClass = z.object({numberOfBookableSeats: z.number().gte(1).lte(9).optional(), class: z.string().optional(), closedStatus: z.enum(["WAITLIST_OPEN", "WAITLIST_CLOSED", "ON_REQUEST"]).optional(), tourAllotment: tourAllotment.optional()});

export const travelClass = z.enum(["ECONOMY", "PREMIUM_ECONOMY", "BUSINESS", "FIRST"]);

export const co2Emission = z.object({weight: z.number().int().optional(), weightUnit: z.string().optional(), cabin: travelClass.optional()});

export const flightEndPoint = z.object({iataCode: z.string().optional(), terminal: z.string().optional(), at: z.string().optional()});

export const aircraftEquipment = z.object({code: z.string().optional()});

export const operatingFlight = z.object({carrierCode: z.string().min(1).max(2).optional()});

export const flightStop = z.object({iataCode: z.string().optional(), duration: z.string().optional(), arrivalAt: z.string().optional(), departureAt: z.string().optional()});

export const extendedSegment = z.object({closedStatus: z.enum(["CANCELLED", "DEPARTED", "NOT_AVAILABLE"]).optional(), availabilityClasses: z.array(availabilityClass).optional(), id: z.string().optional(), numberOfStops: z.number().int().optional(), blacklistedInEU: z.boolean().optional(), co2Emissions: z.array(co2Emission).optional(), departure: flightEndPoint.optional(), arrival: flightEndPoint.optional(), carrierCode: z.string().min(1).max(2).optional(), number: z.string().min(1).max(4).optional(), aircraft: aircraftEquipment.optional(), operating: operatingFlight.optional(), duration: z.string().optional(), stops: z.array(flightStop).optional()});

export const flightAvailability = z.object({type: z.string(), id: z.string(), originDestinationId: z.string().optional(), source: flightOfferSource, instantTicketingRequired: z.boolean().optional(), paymentCardRequired: z.boolean().optional(), duration: z.string().optional(), segments: z.array(extendedSegment)});

export const locationEntry = z.unknown();

export const aircraftEntry = z.unknown();

export const currencyEntry = z.unknown();

export const carrierEntry = z.unknown();

export const dictionaries = z.object({locations: locationEntry.optional(), aircraft: aircraftEntry.optional(), currencies: currencyEntry.optional(), carriers: carrierEntry.optional()});

export const createApiShoppingAvailabilityFlightAvailabilitiesResponse = z.object({warnings: z.array(issue).optional(), meta: collectionMetaAvailSearch.optional(), data: z.array(flightAvailability), dictionaries: dictionaries.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
};

/**
 * Return list of Flight Availabilities based on posted searching criteria.
 * 
 * POST /shopping/availability/flight-availabilities
 */
export const createApiShoppingAvailabilityFlightAvailabilities = async (args: CreateApiShoppingAvailabilityFlightAvailabilitiesArgs, options?: CreateApiShoppingAvailabilityFlightAvailabilitiesOptions) => {
const {baseUrl = "https://test.api.amadeus.com/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args['X-HTTP-Method-Override'] != null) headers.set("X-HTTP-Method-Override", String(args['X-HTTP-Method-Override']))

const url = `${baseUrl.replace(/\/+$/, '')}/shopping/availability/flight-availabilities${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

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