import {z} from 'zod'

export type GetApiNavigationJsonArgs = {key: unknown, origin?: unknown | undefined, destination?: unknown | undefined, mode?: ('car' | 'truck') | undefined, waypoints?: unknown | undefined, approaches?: ('unrestricted' | 'curb') | undefined, geometry?: ('polyline' | 'polyline6' | 'geojson') | undefined, lang?: string | undefined, alternatives?: boolean | undefined, altcount?: number | undefined, avoid?: ('toll' | 'ferry' | 'highway' | 'none') | undefined, overview?: ('full' | 'simplified' | 'false') | undefined, bearings?: unknown | undefined, original_shape?: string | undefined, original_shape_type?: ('polyline' | 'polyline6') | undefined};

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

export const getApiNavigationJsonResponse = z.object({status: z.string().optional(), msg: z.string().optional(), warning: z.array(z.string()).optional(), routes: z.array(z.object({geometry: z.string().optional(), distance: z.number().optional(), distance_full: z.number().optional(), duration: z.number().int().optional(), start_location: z.object({latitude: z.number().optional(), longitude: z.number().optional()}).optional(), end_location: z.object({latitude: z.number().optional(), longitude: z.number().optional()}).optional(), geojson: z.object({geometry: z.string().optional(), properties: z.string().optional(), type: z.enum(["Point", "MultiPoint", "LineString", "MultiLineString", "Polygon", "MultiPolygon", "GeometryCollection", "Feature", "FeatureCollection", "Link"]).optional()}).optional(), legs: z.array(z.object({distance: z.object({value: z.number().int().optional()}).optional(), duration: z.object({value: z.number().int().optional()}).optional(), start_location: z.object({latitude: z.number().optional(), longitude: z.number().optional()}).optional(), end_location: z.object({latitude: z.number().optional(), longitude: z.number().optional()}).optional(), raw_duration: z.object({}).optional(), steps: z.array(z.object({geometry: z.string().optional(), start_location: z.object({latitude: z.number().optional(), longitude: z.number().optional()}).optional(), end_location: z.object({latitude: z.number().optional(), longitude: z.number().optional()}).optional(), distance: z.object({value: z.number().int().optional()}).optional(), duration: z.object({value: z.number().int().optional()}).optional(), geojson: z.object({geometry: z.string().optional(), type: z.string().optional()}).optional(), maneuver: z.object({instruction: z.string().optional(), voice_instruction: z.array(z.object({distance_along_geometry: z.number().int().optional(), instruction: z.string().optional(), unit: z.string().optional()})).optional(), bearing_before: z.number().optional(), bearing_after: z.number().optional(), coordinate: z.object({latitude: z.number().optional(), longitude: z.number().optional(), name: z.string().optional()}).optional(), maneuver_type: z.string().optional(), muted: z.boolean().optional(), roundabout_count: z.number().int().optional()}).optional(), name: z.string().optional(), intersections: z.array(z.object({location: z.object({latitude: z.number().optional(), longitude: z.number().optional(), name: z.string().optional()}).optional(), bearings: z.array(z.number().int()).optional(), classes: z.array(z.string()).optional(), entry: z.array(z.boolean()).optional(), intersection_in: z.number().int().optional(), intersection_out: z.number().int().optional(), lanes: z.array(z.object({indications: z.array(z.string()).optional(), valid: z.boolean().optional()})).optional()})).optional(), reference: z.string().optional(), road_shield_type: z.object({label: z.string().optional(), image_url: z.string().optional()}).optional(), driving_side: z.string().optional()})).optional()})).optional(), predicted_duration: z.number().optional(), raw_duration: z.number().optional(), special_objects: z.object({}).optional(), weight: z.number().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
};

/**
 * Navigation Fast
 * 
 * GET /navigation/json
 */
export const getApiNavigationJson = async (args: GetApiNavigationJsonArgs, options?: GetApiNavigationJsonOptions) => {
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.origin != null) query.append("origin", String(args.origin))
if (args.destination != null) query.append("destination", String(args.destination))
if (args.mode != null) query.append("mode", String(args.mode))
if (args.waypoints != null) query.append("waypoints", String(args.waypoints))
if (args.approaches != null) query.append("approaches", String(args.approaches))
if (args.geometry != null) query.append("geometry", String(args.geometry))
if (args.lang != null) query.append("lang", String(args.lang))
if (args.alternatives != null) query.append("alternatives", String(args.alternatives))
if (args.altcount != null) query.append("altcount", String(args.altcount))
if (args.avoid != null) query.append("avoid", String(args.avoid))
if (args.overview != null) query.append("overview", String(args.overview))
if (args.bearings != null) query.append("bearings", String(args.bearings))
if (args.original_shape != null) query.append("original_shape", String(args.original_shape))
if (args.original_shape_type != null) query.append("original_shape_type", String(args.original_shape_type))
if (apiKey !== undefined) query.set("key", apiKey)

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