/**
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { LatLng, SnappedPoint, RequestParams } from "../common";
import { AxiosInstance, AxiosRequestConfig, AxiosResponse } from "axios";
import { defaultAxiosInstance } from "../client";
import { serializer, latLngToString } from "../serialize";

export interface NearestRoadsRequest extends Partial<AxiosRequestConfig> {
  params: {
    /**
     * A list of latitude/longitude pairs. Latitude and longitude values should be separated by commas.
     * Coordinates should be separated by the pipe character: "|".
     * For example: `points=60.170880,24.942795|60.170879,24.942796|60.170877,24.942796`.
     */
    points: LatLng[];
  } & RequestParams;
}

export interface NearestRoadsResponse extends AxiosResponse {
  data: {
    /** An array of snapped points. */
    snappedPoints: SnappedPoint[];
  };
}

export const defaultUrl = "https://roads.googleapis.com/v1/nearestRoads";
export const defaultParamsSerializer = serializer(
  {
    points: (o) => o.map((latLng) => latLngToString(latLng)),
  },
  defaultUrl
);

export function nearestRoads(
  {
    params,
    method = "get",
    url = defaultUrl,
    paramsSerializer = defaultParamsSerializer,
    ...config
  }: NearestRoadsRequest,
  axiosInstance: AxiosInstance = defaultAxiosInstance
): Promise<NearestRoadsResponse> {
  return axiosInstance({
    params,
    method,
    url,
    paramsSerializer,
    ...config,
  }) as Promise<NearestRoadsResponse>;
}