//
// This JS file sets up the Gmap and shows all of the locations in a specific region. Its
// used by the maps app for the home page.
//

if (GBrowserIsCompatible()) {
  var gmarkers = [];
  
  //
  // Function linked to "Map It!" button to open marker windows given a location ID.
  //
  function map_it_click(location_id) {
    GEvent.trigger(gmarkers[location_id], "click");
    window.location.hash="map";
  }
  
  //
  // custom icon to use on the map
  //
  var icon = new GIcon();
  icon.image = "http://labs.google.com/ridefinder/images/mm_20_red.png";
  icon.shadow = "http://labs.google.com/ridefinder/images/mm_20_shadow.png";
  icon.iconSize = new GSize(12, 20);
  icon.shadowSize = new GSize(22, 20);
  icon.iconAnchor = new GPoint(6, 20);
  icon.infoWindowAnchor = new GPoint(5, 1);

  // 
  // create the map and center it on the napa valley
  //
  var map = new GMap2(document.getElementById("map"));
  map.addControl(new GLargeMapControl());
  map.setCenter(new GLatLng(38.4,-122.45), 10);

  //
  // setup the ad unit on the map
  //
  var publisher_id = "pub-4573498472547028";
  adsManagerOptions = {
    maxAdsOnMap : 2,
    style: 'adunit',
    channel: '6137780196'
  };

  adsManager = new GAdsManager(map, publisher_id, adsManagerOptions);
  adsManager.enable();
  
  //
  // Generate a "click" listener given a location ID.
  //
  var generate_listener = function(location_id){ 
    return function(){
      var marker = gmarkers[location_id];
      if (marker.retrieved == true){
        marker.openInfoWindowHtml('<div class="gmap_popup">'+marker.content+'</div>');
      }
      else
      {
        // Load the location info and store it in the marker object.
        $.getJSON('/api/location/id/'+marker.location_id, function(json){
          marker.content   = json.content;
          marker.retrieved = true;
          marker.openInfoWindowHtml('<div class="gmap_popup">'+marker.content+'</div>');
        });
      }
    };
  };
  
  
  //
  // Setup all marks.
  //
  
  // Array of location data needed for marks. The html for the windows is loaded async when "click" action is
  // triggered. All location data is in a giant array to save space.
  var locations = [[38.540364, -122.508401, 139],[38.302337, -122.279286, 140],[38.256294, -122.349793, 141],[38.577643, -122.579402, 142],[38.3963, -122.3692, 143],[38.507548, -122.470042, 144],[38.578901, -122.580081, 145],];
  
  // Add a marker for for each location in locations array.
  for(key in locations){
    var marker = new GMarker(new GLatLng(locations[key][0], locations[key][1]), icon);
    marker.location_id = locations[key][2];
    marker.retrieved = false;
    
    GEvent.addListener(marker, "click", generate_listener(marker.location_id));
    
    gmarkers[marker.location_id] = marker;
    
    map.addOverlay(marker);
  }
}