var geocoder;
var map;
var gigMarkers = new Array();
var loadingMessage = "Loading...";
var initLatLng = new google.maps.LatLng(54.484998, -3.532791);
var noEvents = "There are no events for the selected options";


function initialize() {
  geocoder = new google.maps.Geocoder();
  var myOptions = {
    zoom: 6,
    center: initLatLng,
    mapTypeId: google.maps.MapTypeId.ROADMAP
  }
  map = new google.maps.Map(document.getElementById("gigmap"), myOptions);
}
	
function ResetMap()	{
	map.setCenter(initLatLng);
	map.setZoom(6);
}

function ClearList(){
	
	$(".eventlist .content").html(loadingMessage);
}

// Gig info window
var infowindow = new google.maps.InfoWindow();
  function AddGigMarker(lat, lng, infocontent) {
		var gigLatLng = new google.maps.LatLng(lat, lng);
		var gigMarker = new google.maps.Marker({
			position: gigLatLng,
			map: map
			});
		// Add a click event	
		google.maps.event.addListener(gigMarker, 'click', function() {
		  infowindow.content=infocontent;
		  infowindow.open(map,gigMarker	);
		});
		gigMarkers[gigMarkers.length] = gigMarker;
  }
  
function PopulateList(listContent){
	var eventList = $(".eventlist .content");
	if(eventList.html() == loadingMessage){
		eventList.html("");
	}
	eventList.html(eventList.html() + listContent);
}

function clearMarkers(){
	infowindow.close();
	for(i =0; i < gigMarkers.length; i++){
		gigMarkers[i].setMap(null);
	}
}


  var time = 0;
  function LoadEventsByDate(startdate, enddate, textDate){
  	  // GA
	  if(textDate != null){
		  pageTracker._trackPageview ('/timespan/' + textDate);
	  }
	
	  ClearList();
	  $.getJSON("http://www.thisawfultruth.com/ajax/mapdateevents.php?timespan=Week&startdate=" + startdate + "&enddate=" + enddate + "",
		 function(data){
	         if(data.events.length > 0){
                  $.each(data.events, function(i,event){
                        AddGigMarker(event.lat, event.lng, event.description);
                        PopulateList(event.description);
                      });
              } else {
                	PopulateList("Please select a timespan other than \"all dates\" for national listings");
              }
		 });
		 
  }
  
  function LoadEventsByDateCity(startdate, enddate, textDate, city){
  	  // GA
	  if(textDate != null){
		  pageTracker._trackPageview ('/city/' + city + '/' + textDate);
	  }
	
	  ClearList();
	  $.getJSON("http://www.thisawfultruth.com/ajax/mapdateevents.php?timespan=Week&startdate=" + startdate + "&enddate=" + enddate + "&city=" + city,
		 function(data){
    	     if(data.events.length > 0){
              $.each(data.events, function(i,event){
                    AddGigMarker(event.lat, event.lng, event.description);
                    PopulateList(event.description);
                  });
	         } else {
                	PopulateList(noEvents);
             }
		 });
		 
  }
  
	function CenterMapOnCity(city, country) {
		if (geocoder) {
		  geocoder.geocode( { 'address': city + " " + country}, function(results, status) {
			if (status == google.maps.GeocoderStatus.OK) {
			  map.setCenter(results[0].geometry.location);
              if(city == "London"){
				  map.setZoom(11);
              } else {
				  map.setZoom(12);
              }
			} else {
			  alert("Geocode was not successful for the following reason: " + status);
			}
		  });
		}
	  }
  
  function LoadEventsByCity(city, country){
  	// GA track
	pageTracker._trackPageview ('/city/' + city);
	
	ClearList();
	  $.getJSON("http://www.thisawfultruth.com/ajax/mapdateevents.php?city=" + city,
		 function(data){
	         if(data.events.length > 0){
                  $.each(data.events, function(i,event){
                        AddGigMarker(event.lat, event.lng, event.description);
                        PopulateList(event.description);
                      });
				} else {
                	PopulateList(noEvents);
                }
		 });
		 CenterMapOnCity(city, country);
		 
  }
  
  function LoadEventsByArtist(artist){
  	// GA
	pageTracker._trackPageview ('/artist/' + artist);
	
	  ClearList();
	  $.getJSON("http://www.thisawfultruth.com/ajax/mapdateevents.php?artist=" + artist,
		 function(data){
		  $.each(data.events, function(i,event){
		  		//alert(event.description);
	            // for each event, add it to the maps
	            AddGigMarker(event.lat, event.lng, event.description);
				PopulateList(event.description);
	          });
		 map.setZoom(6);
		 map.setCenter(initLatLng);
		 });
  }
  
  // clears all option boxes
  function ClearOptions(selectedId){
  	var selects = $("select");
  	$.each(selects, function(){
		// dont reset the selected one...
		if(selectedId.indexOf(this.id) == -1){
			this.selectedIndex = 0;
		}
	});
  }