/**
     Fills announce section and lists all the upcoming activities & special events 
	 as shown in our Google Calendar.
**/

/** Update the following **/
var gCalFeed = 'http://www.google.com/calendar/feeds/fairfaxparksandrec%40gmail.com/public/full';
var maxResults = 6;
var is24Hour = false;

document.write('<h3>Upcoming Programming</h3>')

/** Do NOT touch below this line **/
var today = new Date();
var startDate = today.getFullYear() + '-';
startDate += (today.getMonth()+1 < 10) ? '0'+(today.getMonth()+1) : today.getMonth()+1; 
startDate += '-';
startDate += (today.getDate() < 10) ? '0'+today.getDate() : today.getDate(); 

gCalFeed += '?alt=json-in-script&callback=jsonhandler&singleevents=true&orderby=starttime&sortorder=a';
gCalFeed += '&start-min='+startDate;
gCalFeed += '&max-results=' + maxResults;

RSSRequest(gCalFeed);


function RSSRequest(url) {
document.write("<script type='text/javascript' language='javascript' src='");
document.write(gCalFeed);
document.write("'></script>");
}

function jsonhandler(response) {
	var feed = response.feed;
	var outputHTML = "<ul>";
	var itemTimePrev = new Date();
	itemTimePrev.setTime(0);
	
	if(feed.entry) { 
		for (var i = 0 ; i < feed.entry.length; i++) {
	      var entry = feed.entry[i];
	      var itemTitle = entry['title'].$t;
		  var itemLink = entry['link'][0].href;
		  var itemTimeRaw = entry['gd$when'][0].startTime;
		  var itemLocation = entry['gd$where'][0].valueString;
		  var itemDescr = entry['content'].$t;
		  var isAllDay = false; //init isAllDay variable
	      if (itemTimeRaw.length <= 10) isAllDay = true; //just the date is only 10 digits = all day event
	      var itemTime = new Date();
	      itemTime.setTime (Date.UTC(itemTimeRaw.substr(0,4),(itemTimeRaw.substr(5,2)-1),itemTimeRaw.substr(8,2),itemTimeRaw.substr(11,2),itemTimeRaw.substr(14,2)));
	      if (((itemTime.getUTCDate()!=itemTimePrev.getUTCDate())||(itemTime.getUTCMonth()!=itemTimePrev.getUTCMonth()))&&(i!=0))
        	outputHTML += '</ul>'; //Close bullet for events if it's a new month and it's not the 1st month listed
		  if ((itemTime.getUTCDate()!=itemTimePrev.getUTCDate())||(itemTime.getUTCMonth()!=itemTimePrev.getUTCMonth()))
        	outputHTML += '<li><strong><font color="#4D6C30">' + getMonthName(itemTime)+ ' ' + itemTime.getUTCDate() + '</font></strong></li><ul>';
	      outputHTML += '<li class="event">'; 
	      outputHTML += '<strong><a href="' + itemLink + '&ctz=America/New_York" target="_blank">' + itemTitle + '</a></strong>';
		  if (!isAllDay) outputHTML += ' @ ' + getTimeFormatted(itemTime) + '</li>';
		  itemTimePrev.setTime(itemTime); //Save the last timestamp for next iteration comparison	  
	    }
	outputHTML += "</ul>";
	setHTML("gcalajax", outputHTML);
	setHTML("status", "");
	}
	else {setHTML("status", "No future events.");}
}

/* Time Format - Month */
function getMonthName(dateObject) {
    var m_names = new Array("January", "February", "March", 
    "April", "May", "June", "July", "August", "September", 
    "October", "November", "December");
    return(m_names[dateObject.getUTCMonth()]);
}

/* Time Format - Hour */
function getTimeFormatted(dateObject) {
    var hours = dateObject.getUTCHours();
    var minutes = dateObject.getUTCMinutes();
    var formattedTime = null;
    if (is24Hour) {
        if (minutes < 10){minutes = "0" + minutes;}
        formattedTime = hours + ':' + minutes;
        return (formattedTime);
    }
    else {
        var ampm = "am";
        if (hours > 12){
            hours = hours - 12;
            ampm = "pm";}
        if (hours == 12){ampm = 'pm';}
        if (hours == 0) {hours = 12;}
        if (minutes < 10){minutes = "0" + minutes;}
        formattedTime = hours + ':' + minutes + ampm;
		return (formattedTime);
    }
}

function setHTML(div, data)
{
	document.write(data);
}