/**
 * @ngdoc directive
 * @name MapController
 * @requires $scope
 * @property {Hash} controls collection of Controls initiated within `map` directive
 * @property {Hash} markersi collection of Markers initiated within `map` directive
 * @property {Hash} shapes collection of shapes initiated within `map` directive
 * @property {MarkerClusterer} markerClusterer MarkerClusterer initiated within `map` directive
 */
/*jshint -W089*/
ngMap.MapController = function() { 

  this.map = null;
  this._objects = [];

  /**
   * Add a marker to map and $scope.markers
   * @memberof MapController
   * @name addMarker
   * @param {Marker} marker google map marker
   */
  this.addMarker = function(marker) {
    /**
     * marker and shape are initialized before map is initialized
     * so, collect _objects then will init. those when map is initialized
     * However the case as in ng-repeat, we can directly add to map
     */
    if (this.map) {
      this.map.markers = this.map.markers || {};
      marker.setMap(this.map);
      if (marker.centered) {
        this.map.setCenter(marker.position);
      }
      var len = Object.keys(this.map.markers).length;
      this.map.markers[marker.id || len] = marker;
    } else {
      this._objects.push(marker);
    }
  };

  /**
   * Add a shape to map and $scope.shapes
   * @memberof MapController
   * @name addShape
   * @param {Shape} shape google map shape
   */
  this.addShape = function(shape) {
    if (this.map) {
      this.map.shapes = this.map.shapes || {};
      shape.setMap(this.map);
      var len = Object.keys(this.map.shapes).length;
      this.map.shapes[shape.id || len] = shape;
    } else {
      this._objects.push(shape);
    }
  };

  this.addObject = function(groupName, obj) {
    if (this.map) {
      this.map[groupName] = this.map[groupName] || {};
      var len = Object.keys(this.map[groupName]).length;
      this.map[groupName][obj.id || len] = obj;
      if (groupName != "infoWindows" && obj.setMap) { //infoWindow.setMap works like infoWindow.open
        obj.setMap(this.map);
      }
    } else {
      obj.groupName = groupName;
      this._objects.push(obj);
    }
  }

  /**
   * Add a shape to map and $scope.shapes
   * @memberof MapController
   * @name addShape
   * @param {Shape} shape google map shape
   */
  this.addObjects = function(objects) {
    for (var i=0; i<objects.length; i++) {
      var obj=objects[i];
      if (obj instanceof google.maps.Marker) {
        this.addMarker(obj);
      } else if (obj instanceof google.maps.Circle ||
        obj instanceof google.maps.Polygon ||
        obj instanceof google.maps.Polyline ||
        obj instanceof google.maps.Rectangle ||
        obj instanceof google.maps.GroundOverlay) {
        this.addShape(obj);
      } else {
        this.addObject(obj.groupName, obj);
      }
    }
  };

};