// Initiate a new preference instance.
var gPref = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);

// Elements of the windows
var userName;
var timer;

// Create a variable for the timer process.
var gTimerID;

// Create a variable for HTTP requests.
var gXMLHttpRequest;

function caggInit()
{
  // Initial update of notifier icon.
  window.setTimeout(updateGet,1000);
}

function processClick(event)
{
  // Right-click event
  if (event.button == 2)
  {
    var windowFeatures = "chrome,modal=yes,resizable=no";
    window.openDialog('chrome://comic-aggregator-notifier/content/preferences.xul','PrefWindow',windowFeatures,'browser');
    return;
  }

  // Left-click event (also single click, like Mac)
  if (event.button == 0)
  {
    updateGet();
  }
}

function updateGet()
{
  // Cancel previously submitted notifier job.
  window.clearTimeout(gTimerID);

  // Load the notifier poll timer.
  try      { timer = gPref.getIntPref('cagg.time'); }
  catch(e) { timer = 180; }

  // Re-submit with the appropriate poll timer.
  gTimerID = window.setTimeout(updateGet,timer * 1000);

  // Load the notifier email address.
  try	   { userName = gPref.getCharPref('cagg.user'); }
  catch(e) { return; }

  gXMLHttpRequest = new XMLHttpRequest();
  gXMLHttpRequest.onload = updateSet;
  gXMLHttpRequest.open('GET','http://comics.proyectoanonimo.com/ws/' + userName + '/unread');
  gXMLHttpRequest.setRequestHeader('User-Agent','ComicAggregatorNotifier/Comic Aggregator Notifier for Mozilla/1.0');
  gXMLHttpRequest.send(null);
}

function updateSet()
{
  var icon = document.getElementById('cagg.icon');
  var unreadComic = getElementsByTagNames("unread_comic",gXMLHttpRequest.responseText);
  var count = unreadComic[0].getAttribute("count");

  switch(count)
  {
    case '0':
      icon.setAttribute("src","chrome://comic-aggregator-notifier/content/off.png");
      break;
    default:
      icon.setAttribute("src","chrome://comic-aggregator-notifier/content/on.png");
      break;
  }

  var number = document.getElementById('cagg.number');
  number.setAttribute("value",count);
}

function getElementsByTagNames(list,obj) {
	if (!obj) var obj = document;
	var tagNames = list.split(',');
	var resultArray = new Array();
	for (var i=0;i<tagNames.length;i++) {
		var tags = obj.getElementsByTagName(tagNames[i]);
		for (var j=0;j<tags.length;j++) {
			resultArray.push(tags[j]);
		}
	}
	var testNode = resultArray[0];
	if (!testNode) return [];
	if (testNode.sourceIndex) {
		resultArray.sort(function (a,b) {
				return a.sourceIndex - b.sourceIndex;
		});
	}
	else if (testNode.compareDocumentPosition) {
		resultArray.sort(function (a,b) {
				return 3 - (a.compareDocumentPosition(b) & 6);
		});
	}
	return resultArray;
}


function preferencesInit()
{
  userName = document.getElementById('cagg.user');
  timer = document.getElementById('cagg.time');

  try { userName.value = gPref.getCharPref('cagg.user'); }
  catch(e) { userName.value = ''; }

  try { timer.value = gPref.getIntPref('cagg.time'); }
  catch(e) { timer.value = 15; }
}

function savePreferences()
{
  userName = document.getElementById('cagg.user');
  gPref.setCharPref('cagg.user', userName.value);

  timer = document.getElementById('cagg.time');
  var bOkay = true;
  var cPref = '';
  var sPref = timer.value.replace(/^[0]*/);
  var sWork = "0123456789";
  for (j = 0; j < sPref.length; j++)
  {
    if (sWork.indexOf(sPref.charAt(j)) == -1) bOkay = false;
    else cPref = cPref + sPref.charAt(j);
  }
  if (cPref.length == 0 ) cPref = '0';
  var iPref = parseInt(cPref);
  if (iPref < 15) iPref = 15;
  gPref.setIntPref('cagg.time', iPref);
}