/**
 * @ngdoc directive
 * @name map-data
 * @description 
 *   set map data
 *   Requires:  map directive
 *   Restrict To:  Element
 *
 * @param {String} method-name, run map.data[method-name] with attribute value
 * @example
 * Example: 
 *
 *   <map zoom="11" center="[41.875696,-87.624207]">
 *     <map-data load-geo-json="https://storage.googleapis.com/maps-devrel/google.json"></map-data>
 *    </map>
 */
ngMap.directive('mapData', ['Attr2Options', function(Attr2Options) {
  var parser = Attr2Options;
  
  return {
    restrict: 'E',
    require: '^map',

    link: function(scope, element, attrs, mapController) {
      var filtered = parser.filter(attrs);
      var options = parser.getOptions(filtered);
      var events = parser.getEvents(scope, filtered, events);

      console.log('map-data options', options);
      scope.$on('mapInitialized', function(event, map) {
        /**
         * options
         */
        for (var key in options) {
          if (key) {
            var val = options[key];
            if (typeof scope[val] === "function") {
              map.data[key](scope[val]);
            } else {
              map.data[key](val);
            }
          } // if (key)
        }

        /**
         * events
         */
        for (var eventName in events) {
          if (events[eventName]) {
            map.data.addListener(eventName, events[eventName]);
          }
        }
      });
    }
   }; // return
}]);