import {z} from 'zod'

export type GetApiSnapToRoadsJsonArgs = {key: unknown, path: unknown, timestamps?: unknown | undefined, radiuses?: unknown | undefined, approaches?: ('unrestricted' | 'curb') | undefined, avoid?: ('toll' | 'ferry' | 'highway' | 'none') | undefined, geometry?: ('polyline' | 'polyline6' | 'geojson') | undefined, mode?: ('car' | 'truck') | undefined, tolerate_outlier?: boolean | undefined, option?: 'flexible' | undefined, road_info?: 'max_speed' | undefined};

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

export const getApiSnapToRoadsJsonResponse = z.object({status: z.string().optional(), msg: z.string().optional(), snappedPoints: z.array(z.object({location: z.object({latitude: z.number(), longitude: z.number()}), originalIndex: z.number().int(), distance: z.number(), name: z.string(), bearing: z.number()})).optional(), distance: z.number().int().optional(), geometry: z.array(z.string()).optional(), geojson: z.object({type: z.string().optional(), geometry: z.object({type: z.string().optional(), coordinates: z.array(z.number()).optional()}).optional(), properties: z.string().optional()}).optional(), road_info: z.object({max_speed: z.array(z.object({offset: z.number().int().optional(), length: z.number().int().optional(), value: z.number().optional()})).optional()}).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
};

/**
 * Snap To Road
 * 
 * GET /snapToRoads/json
 */
export const getApiSnapToRoadsJson = async (args: GetApiSnapToRoadsJsonArgs, options?: GetApiSnapToRoadsJsonOptions) => {
const {baseUrl = "https://api.nextbillion.io", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.key != null) query.append("key", String(args.key))
if (args.path != null) query.append("path", String(args.path))
if (args.timestamps != null) query.append("timestamps", String(args.timestamps))
if (args.radiuses != null) query.append("radiuses", String(args.radiuses))
if (args.approaches != null) query.append("approaches", String(args.approaches))
if (args.avoid != null) query.append("avoid", String(args.avoid))
if (args.geometry != null) query.append("geometry", String(args.geometry))
if (args.mode != null) query.append("mode", String(args.mode))
if (args.tolerate_outlier != null) query.append("tolerate_outlier", String(args.tolerate_outlier))
if (args.option != null) query.append("option", String(args.option))
if (args.road_info != null) query.append("road_info", String(args.road_info))
if (apiKey !== undefined) query.set("key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/snapToRoads/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(getApiSnapToRoadsJsonResponse, await res.json())
};