import {z} from 'zod'

export type GetApiV1FlightsTripsTripIdExperienceArgs = {tripId: string, searchId?: string | undefined};

export type GetApiV1FlightsTripsTripIdExperienceOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV1FlightsTripsTripIdExperienceResponse = z.object({tripId: z.string(), legs: z.array(z.object({id: z.string(), departureAirportCode: z.string(), arrivalAirportCode: z.string(), stopsCount: z.number().int().gte(0).lte(9007199254740991), signals: z.object({overnight: z.boolean(), longStopover: z.boolean(), earlyDeparture: z.boolean(), lateArrival: z.boolean(), shortStopover: z.literal(true).optional(), newAircraft: z.literal(true).optional(), highlyRatedCarrier: z.literal(true).optional()})})), metadata: z.object({legCount: z.number().int().gte(1).lte(9007199254740991)})});

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
};

/**
 * Read a trip's experience signals
 * 
 * GET /v1/flights/trips/{tripId}/experience
 * 
 * Also accepts auth: bearerAuth
 */
export const getApiV1FlightsTripsTripIdExperience = async (args: GetApiV1FlightsTripsTripIdExperienceArgs, options?: GetApiV1FlightsTripsTripIdExperienceOptions) => {
const {baseUrl = "https://api.wego.com", fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (args.searchId != null) query.append("searchId", String(args.searchId))
if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/flights/trips/${encodeURIComponent(String(args.tripId))}/experience${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(getApiV1FlightsTripsTripIdExperienceResponse, await res.json())
};