import {z} from 'zod'

export type GetApiShoppingActivitiesBySquareArgs = {north: number, west: number, south: number, east: number};

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

export const collectionMeta = z.object({count: z.number().int().optional(), links: z.object({self: z.string().optional(), next: z.string().optional(), previous: z.string().optional(), last: z.string().optional(), first: z.string().optional(), up: z.string().optional()}).optional()});

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 link = z.object({href: z.string().optional(), methods: z.array(z.enum(["GET", "PUT", "DELETE", "POST", "PATCH"])).optional()});

export const geoCode = z.object({latitude: z.number().optional(), longitude: z.number().optional()});

export const elementaryPrice = z.object({amount: z.string().optional(), currencyCode: z.string().optional()});

export const activity = z.object({type: z.string().optional(), id: z.string().optional(), self: link.optional(), name: z.string().optional(), shortDescription: z.string().optional(), description: z.string().optional(), geoCode: geoCode.optional(), rating: z.string().optional(), price: elementaryPrice.optional(), pictures: z.array(z.string()).optional(), bookingLink: z.string().optional(), minimumDuration: z.string().optional()});

export const getApiShoppingActivitiesBySquareResponse = z.object({meta: collectionMeta.optional(), warnings: z.array(issue).optional(), data: z.array(activity)});

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
};

/**
 * Returns Activities around a given location
 * 
 * GET /shopping/activities/by-square
 */
export const getApiShoppingActivitiesBySquare = async (args: GetApiShoppingActivitiesBySquareArgs, options?: GetApiShoppingActivitiesBySquareOptions) => {
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.north != null) query.append("north", String(args.north))
if (args.west != null) query.append("west", String(args.west))
if (args.south != null) query.append("south", String(args.south))
if (args.east != null) query.append("east", String(args.east))

const url = `${baseUrl.replace(/\/+$/, '')}/shopping/activities/by-square${query.size > 0 ? `?${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(getApiShoppingActivitiesBySquareResponse, await res.json())
};