/*
*	FeedReader
*	=============================================================
*	Following script reads feeds in a corss-domain environment
*	utilizing Google API (feeds).
*
*	_FEEDURL : URL of requested feed
*
*	_FACILITY : Set in view template for displaying a particular
*				facility or set of facilities.
*
*	_VIEW : The view to display in the browser (home | top | list)
*
*	V2 (not impl.)
*	-----------------
*	_AUTO (true | false) :	Is set will refresh the feed ad the
*							specified _INTERVAL.
*
*	_INTERVAL :	Integer value in milliseconds for auto refresh.
*/

var dateDisplayed=false;

// DOM Manipulation and onload business logic to control views of the ER wait times.
$(document).ready(function (){
	//alert(_VIEW);
	// show the container selected (above)
	window.setTimeout(showContainer,150);
				
	// set tooltip text...
	$('.tooltip .content').html('<p>ER wait times are approximate and provided for informational purposes only. If you are having a medical emergency,<br> call 9-1-1.</p>');
	$('.lbl a').mouseenter(function (){
		$('.tooltip').fadeIn('fast');
	});
	$('.lbl a').mouseleave(function (){
		$('.tooltip').hide();
	});
	
	// load the rss feed and call the render method...
	loadFeed();
	//setInterval("loadFeed()", 120 * 1000); // 2 minutes
});

// global vars...
var numPerGroup=3;
var groupNum=0;

function showContainer(){
	$('#ctr-erwait-'+_VIEW).show();
}


function loadFeed(){
	// render the feed...
	//alert(_FEEDURL[0].replace("http://eastflamkt.two.icu.ehc.com",""));
	
	// loop over the feed URLs and create feeds for
	if (isArray(_FEEDURL)){ // if this is an array of URLs...
		for (var i=0;i<_FEEDURL.length;i++){
			$.ajax({
				type: "GET",
				url: _FEEDURL[i].replace("http://eastflamkt.two.icu.ehc.com",""),
				dataType: "xml",
				success: function(xml){
					renderFeed(xml);
				}
			});
		}
	} else { // otherwise it's a single load...
		$.ajax({
			type: "GET",
			url: _FEEDURL[0].replace("http://eastflamkt.two.icu.ehc.com",""),
			dataType: "xml",
			success: function(xml){
				renderFeed(xml);
			}
		});
	}
}


// Helper ethods
	function renderFeed(result) {
		if (!result.error) {
			var items = result.getElementsByTagName('item');
			
			$('#ctr-error').hide();
			
			// set the publish date of the RSS feed and display it...
			var dateVal = items[0].getElementsByTagName('pubDate')[0].firstChild.nodeValue;
			
			//alert(items.length);
			
			for (var i = 0; i < items.length; i++) {
				var item = items[i];

				// append contents from the feedto our display container...
				var title = item.getElementsByTagName('title')[0].firstChild.nodeValue;
				var date = item.getElementsByTagName('pubDate')[0].firstChild.nodeValue;
				var time = item.getElementsByTagName('description')[0].firstChild.nodeValue;
				var link = item.getElementsByTagName('link')[0].firstChild.nodeValue;
				
				// Exit the loop if "_FACILITY" is defined and it doesn't match this
				// current entry.
				if (matchFacility(title)) continue;

				// append contents from the feedto our display container...
				var shortName=title.replace(" ","").replace("-","");
				
				//populate the data....
				$("#"+shortName+" .hosp-name").html(renderLink(link,title,"_blank"));
				$("#"+shortName+" .hosp-min").html(time);
			}
			
			// append the date stamp to the container
			if (!dateDisplayed) {
				$("#ctr-erwait-top, #ctr-erwait-home, #ctr-erwait-list").append("<div class='date' style='margin-top:3px;font:normal 10px Verdana;color:#666;text-align:center;'>" + dateVal + "</div>");
				
				// append some styles to the date labels...
				if (_FACILITY!="Frankfort" && _FACILITY!="Parkland" && _FACILITY!="Terre Haute") {
					var htmlStr="";
					htmlStr+="<style type='text/css'>";
					if (_VIEW == 'home'){
						htmlStr+="#ctr-erwait-home .date { position: absolute; bottom: 8px; left: 190px; width: 185px; color: #666; }";
					}
					htmlStr+="</style>";
					
					$("body").append(htmlStr);
				}
			}
			dateDisplayed=true;
		} else {
			$('#ctr-error').show();
			$('#ctr-error h2').html("Error");
			try {
				$('#ctr-error p').html("Error communicating with RSS feed (" + _FEEDURL + "): " + reuslt.error.message);
			} catch (err){
				$('#ctr-error p').html("Error communicating with RSS feed (" + _FEEDURL + ")");
			}
		}
	}
	
	function renderLink(href,title,target){
		if (arguments.length < 3) target = "_self";
		if (href.indexOf("http")==-1) { href = "http://" + href; }
		
		// replace 'www' with 'er'
		if (_VIEW != 'list') href = href.replace("www","er");
		
		// return the link for display...
		return "<a href=\""+href+"\" target=\""+target+"\" title=\""+title+"\">" + title + "</a>";
	}
	
	function matchFacility(facility){
		if ((typeof _FACILITY != "undefined") && (_FACILITY.indexOf(facility)==-1) && (_FACILITY!="")){
			return true;
		} else {
			return false;
		}
	}
	
	function isArray(obj){
		return(obj instanceof Array)?true:false;
	}
	
	
	function getContingencyMessage(){
    	return this.contingencyMessage;
    }
 
    function getFullDate(dateString) {
        return new Date(dateString).toLocaleDateString();
    }

    function getTime(dateString) {
        return new Date(dateString).toLocaleTimeString();
    }

    function getFullDateTime(dateString) {
        return getFullDate(dateString) + ' ' + getTime(dateString);
    }

    function getAbbrDate(dateString) {
        return new Date(dateString).toDateString();
    }

    function getAbbrDateTime(dateString) {
        return getAbbrDate(dateString) + ' ' + getTime(dateString);
    }

    function isStaleWaitTime(dateString) {
    	var currLocalDate = new Date();
    	return ((currLocalDate.getTime()-Date.parse(dateString)) >=5400000) ? true : false;
    }

    function contingencyWaitTimeCheck(erWaitTime,dateString) {
    	return (erWaitTime == '---' || isStaleWaitTime(dateString)) ? getContingencyMessage() : erWaitTime;
    }