var map;
document.entryData = [];
var geocoder = new GClientGeocoder();
function initmap() {
   if (GBrowserIsCompatible()) {
      map = new GMap2(document.getElementById("map"));
      map.addControl(new GLargeMapControl());
         //map.setCenter(new GLatLng(42.55308, -24.960937), 1);
         map.setCenter(new GLatLng(2, 10), 1);
   }
}
function centermap(centername) {
   map.centername = centername;
}

function downloadCallback(data, responseCode) {
   if (responseCode == 200) {
      eval("var obj="+data);
      handleData(obj);
   } else {
      //TODO: fail gracefully
   }
}

function loadData(url) {
   GDownloadUrl(url, downloadCallback);
}

function handleData(data) {
   for (i in data['places']) {
      var index = data['places'][i]['location']['point'][0]+":"+data['places'][i]['location']['point'][1];
      if (document.entryData[index]) {
         document.entryData[index].entries = document.entryData[index].entries.concat(data['places'][i]['entries']);
      } else {
         document.entryData[index] = {
            name: data['places'][i]['location']['name'],
            entries: data['places'][i]['entries'],
            current: 0
         };
      }
      if (map.centername == data['places'][i]['location']['name']) {
         map.setCenter(new GLatLng(data['places'][i]['location']["point"][0],data['places'][i]['location']["point"][1]), 6);
      }
      createMarker(new GLatLng(data['places'][i]['location']["point"][0],data['places'][i]['location']["point"][1]),document.entryData[index]); 
   }
}
function nextEntry(name) {
   var entry = document.entryData[name];
   entry.current = entry.current + 1;
   if (!entry.entries[entry.current]) {
      entry.current = entry.current - 1;
   }
   updateEntry(entry);
}
function previousEntry(name) {
   var entry = document.entryData[name];
   entry.current = entry.current - 1;
   if (entry.current == -1) {
      entry.current = 0;
   }
   updateEntry(entry);
}
function getEntryLabel(entry) {
   var index = 0;
   var label = "";
   while(entry.entries[index]) {
      label = label + "&raquo; <a href=\"http://shewentofherownaccord.com/joke/"+entry.entries[index].id+"\" class=\"markerline\">"+entry.entries[index].text+"</a> <br/>";
      index = index + 1;
   }

   //var label = "<a href=\"javascript: void(0);\" onclick=\"previousEntry('"+entry.name+"');\">&lt;</a> ";
   //label = label + (entry.current+1)+" of "+(entry.entries.length);
   //label = label + "<a href=\"javascript: void(0);\" onclick=\"nextEntry('"+entry.name+"');\">&gt;</a> ";
   //label = label + "<br>"+"<b>"+entry.name+"</b><br>"+entry.entries[entry.current].text;
   //return label;
   return label;
}
function updateEntry(entry) {
   var label = getEntryLabel(entry);
   document.getElementById(entry.name+"_marker").innerHTML = label;
   entry.marker.redraw(true);
}
function createMarker(point,entry) {
   var marker = new GMarker(point);
   marker.entry = entry;
   entry.marker = marker;
   GEvent.addListener(marker, "click", function() {
         marker.openInfoWindowHtml("<div id=\""+marker.entry.name+"_marker\">"+getEntryLabel(entry)+"</div>");
         //updateEntry(marker.entry);
   });
   map.addOverlay(marker);
}
function lookupLocation(address, label) {
   geocoder.getLatLng(
      address,
      function(point) {
         if (!point) {
            alert(address + " not found");
         } else {
            createMarker(point,"<b>" + address + "</b><br>"+label+"<br><br>"+point);
         }
      }
      );
}