// the next line provides syntax highlighting in vim ;)
//<script>
var bdgPage = "";
if (!String.prototype.format)
{
	String.prototype.format = function()
	{
		var str = this;

		for(var i=0;i<arguments.length;i++)
		{
			var re = new RegExp('\\{' + (i) + '\\}','gm');
			str = str.replace(re, arguments[i]);
		}

		return str;
	}
}

if (!String.prototype.trim){
	String.prototype.trim = function() { return this.replace(/^\s+|\s+$/g, ''); };
}

var siteNotificationElem = "divSiteNotification";
var siteNotificationObj = false;
var siteNotificationRequestObj = false;
var siteNotificationDefaultResendTime = 30; // set to 5 seconds for dev, really this should be 30+
var siteNotificationResendTime = siteNotificationDefaultResendTime;
var siteNotificationLastId = 0;

function showSiteNotification(msgList) {
	if (siteNotificationObj == false) siteNotificationObj = document.getElementById(siteNotificationElem);
	if (siteNotificationObj != false)
	{
		siteNotificationObj.innerHTML = "<div><strong>You Have New Notifications</strong><br />";
		siteNotificationObj.innerHTML += "<ul class='noticeList'><li>" + msgList.join("</li>\n<li>") + "</li></ul>";
		siteNotificationObj.innerHTML += "<p><input type=\"button\" onclick=\"javascript:closeSiteNotification()\" value=\"Close\" /></p></div>";
		siteNotificationObj.className = "clsSiteNotificationVisible";
		window.location.hash = "divSiteNotification";
	}
}

function closeSiteNotification()
{
	if (!siteNotificationObj == false) siteNotificationObj = document.getElementById(siteNotificationElem);
	if (siteNotificationObj != false)
	{
		siteNotificationObj.innerHTML = "";
		siteNotificationObj.className = "clsSiteNotificationHidden";
		startSiteNotificationCountdown();
	}
}

function doSiteNotificationCheck()
{
	if(siteNotificationRequestObj == false)
	{
		if (typeof XMLHttpRequest != "undefined")
		{
			siteNotificationRequestObj = new XMLHttpRequest();
		}
		else if (typeof ActiveXObject != "undefined")
		{
			siteNotificationRequestObj = new ActiveXObject("Microsoft.XMLHTTP");
		}
		else
		{
			// "XMLHttpRequest not supported"
			return;
		}
	}

	if (siteNotificationRequestObj)
	{
		var sendPage; 
		sendPage = (bdgPage)? bdgPage : "" ;
		siteNotificationRequestObj.open("GET", "/ajax_api_notices.php?f=notices:get_notices&last=" + siteNotificationLastId+"&page="+sendPage, true);
		siteNotificationRequestObj.onreadystatechange = callbackSiteNotification;
		siteNotificationRequestObj.send("");
	}
}

function startSiteNotificationCountdown()
{
	if (siteNotificationRequestObj != false && siteNotificationRequestObj.abort)
	{
		siteNotificationRequestObj.abort();
		siteNotificationRequestObj = false;
	}

	setTimeout('doSiteNotificationCheck()', siteNotificationResendTime * 1000);
}

function callbackSiteNotification()
{
	// only if siteNotificationRequestObj shows "loaded"
	if (siteNotificationRequestObj.readyState == 4)
	{
		// only if "OK"
		if (siteNotificationRequestObj.status == 200)
		{
			var hasNotifications = false;
			var responseText = siteNotificationRequestObj.responseText;

			if (responseText && responseText.length > 0)
			{
				var notifyEntries = [];
				var responseLines = responseText.split("\n");

				if (responseLines.length != 0)
				{
					var notifyMatch = responseLines[0].match(/^NOTIFY=([0-9]+)/);

					if (notifyMatch && notifyMatch.length == 2) // 0 contains entire pattern match, 1 contains the match
					{
						var lastNotifyId = notifyMatch[1];

						//if (siteNotificationLastId != lastNotifyId)
						//{
							// TODO use setCookie on client so we can sync state across all tabs
							siteNotificationLastId = lastNotifyId;

							for (var i = 1; i < responseLines.length; i++)
							{
								// add the entry to the notification window
								if (responseLines[i].length > 10){
									responseLines[i].trim();
									notifyEntries.push("<strong>"+responseLines[i]+"</strong>");
								}
							}
						//}
					}
				}

				if (notifyEntries.length != 0) {
					hasNotifications = true;
				}
			}

			//If we are at the DEFAULT time of 30 secs ... bump up the next check by 90 sec interval instead of 30
			if (siteNotificationResendTime == siteNotificationDefaultResendTime){
				siteNotificationResendTime = 90;
				siteNotificationDefaultResendTime = 90;
			}
			//if our notifications failed and we have not gone over our timeout decay threshold
			//decay a bit
			if (hasNotifications == false){
				if(siteNotificationResendTime < 300){
				// add to decay
					siteNotificationResendTime = siteNotificationResendTime * 2;
				}
			}
			else {
				siteNotificationResendTime = siteNotificationDefaultResendTime;
				showSiteNotification(notifyEntries);
			}
		}
		else {
			// can't do much but this in this case.
			if (window.console) { window.console.log("There was a problem retrieving the data:\n"
					+ siteNotificationRequestObj.status + ":" + siteNotificationRequestObj.statusText); 
			}
		}

		siteNotificationRequestObj = false;

		// we restart on the close button click if there are notifications..
		if (hasNotifications == false) {
			startSiteNotificationCountdown();
		}
	}
}

function addEvent(o, e, f) {
	if (o.addEventListener) {
		// TODO make below 3rd param true instead of false.. is it time yet?
		o.addEventListener(e, f, false);
		return true;
	}
	else if (o.attachEvent) {
		var r = o.attachEvent("on"+e, f);
		return r;
	}
	else {
		return false;
	}
}

addEvent(window, 'load', startSiteNotificationCountdown);