import {z} from 'zod'

export type ATSUIdentifier = string;

export type Date = string;

export type Time = string;

export type GetApiAviationSigmetsAtsuDateTimeArgs = {atsu: ATSUIdentifier, date: Date, time: Time};

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

export const jsonLdContext = z.union([z.array(z.unknown()), z.object({})]);

export const geoJsonCoordinate = z.array(z.number());

export const geoJsonBoundingBox = z.array(z.number());

export const geoJsonLineString = z.array(geoJsonCoordinate);

export const geoJsonPolygon = z.array(z.array(geoJsonCoordinate));

export const geoJsonGeometry = z.union([z.object({type: z.literal("Point"), coordinates: geoJsonCoordinate, bbox: geoJsonBoundingBox.optional()}), z.object({type: z.literal("LineString"), coordinates: geoJsonLineString, bbox: geoJsonBoundingBox.optional()}), z.object({type: z.literal("Polygon"), coordinates: geoJsonPolygon, bbox: geoJsonBoundingBox.optional()}), z.object({type: z.literal("MultiPoint"), coordinates: z.array(geoJsonCoordinate), bbox: geoJsonBoundingBox.optional()}), z.object({type: z.literal("MultiLineString"), coordinates: z.array(geoJsonLineString), bbox: geoJsonBoundingBox.optional()}), z.object({type: z.literal("MultiPolygon"), coordinates: z.array(geoJsonPolygon), bbox: geoJsonBoundingBox.optional()})]).nullable();

export const aTSUIdentifier = z.string();

export const sigmetGeoJson = z.object({"@context": jsonLdContext.optional(), id: z.string().optional(), type: z.literal("Feature"), geometry: geoJsonGeometry, properties: z.object({id: z.string().optional(), issueTime: z.string().optional(), fir: z.string().nullable().optional(), atsu: aTSUIdentifier.optional(), sequence: z.string().nullable().optional(), phenomenon: z.string().nullable().optional(), start: z.string().optional(), end: z.string().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
};

/**
 * Returns a specific SIGMET/AIRMET
 * 
 * GET /aviation/sigmets/{atsu}/{date}/{time}
 * 
 * Also accepts auth: apiKeyAuth
 */
export const getApiAviationSigmetsAtsuDateTime = async (args: GetApiAviationSigmetsAtsuDateTimeArgs, options?: GetApiAviationSigmetsAtsuDateTimeOptions) => {
const {baseUrl = "https://api.weather.gov", fetch: fetchFn = fetch, userAgent} = options ?? {}

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

if (userAgent !== undefined) headers.set("User-Agent", userAgent)

const url = `${baseUrl.replace(/\/+$/, '')}/aviation/sigmets/${encodeURIComponent(String(args.atsu))}/${encodeURIComponent(String(args.date))}/${encodeURIComponent(String(args.time))}${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(sigmetGeoJson, await res.json())
};