import {z} from 'zod'

export type GetApiQueryJsonArgs = {name?: string | undefined, latitude?: string | undefined, longitude?: string | undefined, elevation?: number | undefined, sw?: string | undefined, query?: string | undefined, filter?: string | undefined, date_range?: string | undefined, facets?: (0 | 1) | undefined, sort?: string | undefined, limit?: number | undefined, offset?: number | undefined};

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

export const event = z.object({event_id: z.number().int().optional(), event_schedule_id: z.number().int().optional(), last_modified: z.string().optional(), event_name: z.string().optional(), event_detail_url: z.string().optional(), web_description: z.string().optional(), city: z.string().optional(), state: z.string().optional(), film_rating: z.boolean().optional(), critic_name: z.string().optional(), times_pick: z.boolean().optional(), free: z.boolean().optional(), kid_friendly: z.boolean().optional(), last_chance: z.boolean().optional(), festival: z.boolean().optional(), long_running_show: z.boolean().optional(), previews_and_openings: z.boolean().optional(), recurring_start_date: z.string().optional(), recur_days: z.array(z.string()).optional()});

export const getApiQueryJsonResponse = z.object({results: z.array(event).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
};

/**
 * Geographic API
 * 
 * GET /query.json
 */
export const getApiQueryJson = async (args: GetApiQueryJsonArgs, options?: GetApiQueryJsonOptions) => {
const {baseUrl = "http://api.nytimes.com/svc/semantic/v2/geocodes", fetch: fetchFn = fetch, apikey} = options ?? {}

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

if (args.name != null) query.append("name", String(args.name))
if (args.latitude != null) query.append("latitude", String(args.latitude))
if (args.longitude != null) query.append("longitude", String(args.longitude))
if (args.elevation != null) query.append("elevation", String(args.elevation))
if (args.sw != null) query.append("sw", String(args.sw))
if (args.query != null) query.append("query", String(args.query))
if (args.filter != null) query.append("filter", String(args.filter))
if (args.date_range != null) query.append("date_range", String(args.date_range))
if (args.facets != null) query.append("facets", String(args.facets))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (apikey !== undefined) query.set("api-key", apikey)

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