import {z} from 'zod'

export type CreateApiV1HotelsSearchesArgs = {body: {cityCode: string, hotelId?: number | undefined, lat?: number | undefined, lng?: number | undefined, radius?: number | undefined, checkIn: string, checkOut: string, adults?: number | undefined, children?: number | undefined, rooms?: number | undefined, childrenAges?: Array<number> | undefined, currency?: string | undefined, locale?: string | undefined, siteCode?: string | undefined} | {cityCode?: string | undefined, hotelId: number, lat?: number | undefined, lng?: number | undefined, radius?: number | undefined, checkIn: string, checkOut: string, adults?: number | undefined, children?: number | undefined, rooms?: number | undefined, childrenAges?: Array<number> | undefined, currency?: string | undefined, locale?: string | undefined, siteCode?: string | undefined} | {cityCode?: string | undefined, hotelId?: number | undefined, lat: number, lng: number, radius?: number | undefined, checkIn: string, checkOut: string, adults?: number | undefined, children?: number | undefined, rooms?: number | undefined, childrenAges?: Array<number> | undefined, currency?: string | undefined, locale?: string | undefined, siteCode?: string | undefined}};

export type CreateApiV1HotelsSearchesOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiV1HotelsSearchesResponse = z.object({searchId: z.string(), occupancy: z.object({adults: z.number().int().gte(-9007199254740991).lte(9007199254740991), childrenAges: z.array(z.number().int().gte(-9007199254740991).lte(9007199254740991)), rooms: z.number().int().gte(-9007199254740991).lte(9007199254740991)}), siteCode: z.string(), siteCodeSource: z.enum(["explicit", "default"])});

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
};

/**
 * Create a hotel search
 * 
 * POST /v1/hotels/searches
 * 
 * Also accepts auth: bearerAuth
 */
export const createApiV1HotelsSearches = async (args: CreateApiV1HotelsSearchesArgs, options?: CreateApiV1HotelsSearchesOptions) => {
const {baseUrl = "https://api.wego.com", fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/hotels/searches${query.size > 0 ? `?${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(createApiV1HotelsSearchesResponse, await res.json())
};