/**
 * @ngdoc service
 * @name GeoCoder
 * @description
 *   Provides [defered/promise API](https://docs.angularjs.org/api/ng/service/$q) service for Google Geocoder service
 */
ngMap.service('GeoCoder', ['$q', function($q) {
  return {
    /**
     * @memberof GeoCoder
     * @param {Hash} options https://developers.google.com/maps/documentation/geocoding/#geocoding
     * @example
     * ```
     *   GeoCoder.geocode({address: 'the cn tower'}).then(function(result) {
     *     //... do something with result
     *   });
     * ```
     * @returns {HttpPromise} Future object
     */
    geocode : function(options) {
      var deferred = $q.defer();
      var geocoder = new google.maps.Geocoder();
      geocoder.geocode(options, function (results, status) {
        if (status == google.maps.GeocoderStatus.OK) {
          deferred.resolve(results);
        } else {
          deferred.reject('Geocoder failed due to: '+ status);
        }
      });
      return deferred.promise;
    }
  }
}]);