// JavaScript Document

var month = new Array("January","February","March","April","May","June","July","August","September","October","November","December");

google.load("feeds", "1");

var ul = document.createElement("ul");
var ul2 = document.createElement("ul");

function initialize() {
	var feed = new google.feeds.Feed(feed_url);
	feed.setResultFormat(google.feeds.Feed.XML_FORMAT);
		
	feed.setNumEntries(100);
	feed.load(function(result) {
		var sidebar = document.getElementById("sidefeed");
		var container 	= document.getElementById("feed");
		if( container ) {
			var js_message = document.getElementById("js_message");
			container.removeChild(js_message);
		}
		if (!result.error) {
			
			var whenstring = '';
			var entries = google.feeds.getElementsByTagNameNS(result.xmlDocument, "http://www.w3.org/2005/Atom", "entry");
			
			if( entries.length == 0 ) {
				ul2.appendChild(document.createTextNode("No new events at this time... check back soon!"));
				ul.appendChild(document.createTextNode("No new events yet."));
			}
			for ( var i = 0; i < entries.length; i++ ) {
				
				var titleElement = google.feeds.getElementsByTagNameNS(entries[i], "http://www.w3.org/2005/Atom", "title");
				var contentElement = google.feeds.getElementsByTagNameNS(entries[i], "http://www.w3.org/2005/Atom", "content");
				
				//var mylinkElement = google.feeds.getElementsByTagNameNS(entries[i], "http://www.w3.org/2005/Atom", "link")[0];
				var whenElement = google.feeds.getElementsByTagNameNS(entries[i], "http://schemas.google.com/g/2005", "when")[0];	
				var whereElement = google.feeds.getElementsByTagNameNS(entries[i], "http://schemas.google.com/g/2005", "where");
				
				
				
				if (container) {
					
					//// LOCATION ////
					if (whereElement[0]) {
						var where = whereElement[0].getAttribute('valueString');
					}
					else {
						var where = " ";	
					}
					var divwhere = document.createElement("div");
					divwhere.setAttribute((document.all ? 'className' : 'class'), "where");
					divwhere.appendChild(document.createTextNode(where));
					
					
					//// DESCRIPTION TEXT ////
					var divcontent = document.createElement("div");
					divcontent.setAttribute((document.all ? 'className' : 'class'),"description");
					
					try {
						var content = contentElement[0].firstChild.nodeValue;	
						divcontent.innerHTML = content.replace(/(https?:\/\/\S+)/g, "<a href='$1'>$1</a>");
						}
					catch(err) {
						var content = " ";
						divcontent.appendChild(document.createTextNode(content));
					}
				}
				
				
				//// DATE ////
				var all_day_event = false;
				
				var starttime = whenElement.getAttribute('startTime');
				if(starttime.length == 10) { 
					starttime += "T05:00:00.000Z"; 
					all_day_event = true;
				} // Temporary hack
				
				var endtime = whenElement.getAttribute('endTime');
				if(endtime.length == 10) { endtime += "T05:00:00.000Z"; } // Temporary hack
				
//				alert("starting: " + starttime + "\r ending: " + endtime);
				
				var startdate = new Date();
				startdate.setISO8601(starttime, "-0500" );
				var enddate = new Date();
				enddate.setISO8601(endtime, "-0500" );
				
//				alert("starting: " + startdate + "\r ending: " + enddate);
				
				var startstring = (month[startdate.getMonth()]) + ' ' + (startdate.getDate()) + ', ' + startdate.getFullYear();
				var endstring = (month[enddate.getMonth()]) + ' ' + (enddate.getDate()) + ', ' + enddate.getFullYear();
				if (startstring == endstring) {
					whenstring = startstring;
				}
				else {
					whenstring = startstring + ' - ' + endstring;
				}
				
				var divwhen = document.createElement("div");
				//divwhen.setAttribute("class", "timelocation");
				divwhen.setAttribute((document.all ? 'className' : 'class'), "date");
				divwhen.appendChild(document.createTextNode(whenstring));
				
				
				//// TIME ////
				if(!all_day_event) {
					var starttimestring =	military_to_ampm(startdate.getHours(), startdate.getMinutes());
					var endtimestring =		military_to_ampm(enddate.getHours(), enddate.getMinutes());
					var timestring = (starttimestring == endtimestring) ? starttimestring : (starttimestring + " - " + endtimestring);
				}
				else {
					timestring = "All-day Event";	
				}
				var divtime = document.createElement("div");
				divtime.setAttribute((document.all ? 'className' : 'class'), "time");
				divtime.appendChild(document.createTextNode(timestring));
				
				
				//// ITEM TITLE ////
				var title = titleElement[0].firstChild.nodeValue;
				var titlearea = document.createElement("div");
				titlearea.setAttribute((document.all ? 'className' : 'class'), "event_title");
				titlearea.appendChild(document.createTextNode(title));
				
				
				//// Build the content for insertion into the HTML ////
				var li = document.createElement("li");
				var li2 = document.createElement("li");
				
				if ((container) || (ugc_name == "none")) {  // The current page is the activities page.
					li.appendChild(titlearea);
					
				}
				else {	// The current page is NOT the activities page.
					var a = document.createElement("a");
					a.setAttribute((document.all ? 'hrefName' : 'href'), "/ucolleges/" + ugc_name + "/activities.shtml");
					a.appendChild(titlearea);
					
					li.appendChild(a);
				}
				
				li.appendChild(divwhen);
				ul.appendChild(li);
				
				if (container) {
					var li2 = li.cloneNode(true);
					li2.appendChild(divtime);
					li2.appendChild(divwhere);
					li2.appendChild(divcontent);
					ul2.appendChild(li2);
				}
								
			}				
			sidebar.appendChild(ul);
			if (container) {
				container.appendChild(ul2);
			}
		}
		else {
			throw new Error('Google API error: ' + result.error.message);
		}
	});
}
	
google.setOnLoadCallback(initialize);