/*
	jCore v0.2
	Matthew Ausonio
	Last Updated:October 2,2009
	Created:October 10, 2008
	
	Dependent libraries:
		jQuery v1.3.2
	
	This file contains the required scripts for a base Digicore site.
	Includes functionality for common modules such as Poll and Rating. For a full list please refer to Core SVN.
*/
var jCore = {
	// **************************************************************
	// Item Stats Retrieval methods. Do not remove
	// **************************************************************
	jCoreInit: function(shareURL,shareTitle,itemId,pollIdsArray) {
		jCore.log(jCore);
		// first thing we do is test to see if cookies is enabled, if it isnt, we alert user to enable cookies.
		this.cookieTest();
		//end cookie test, lets continue
		
		/* now we check to see if our userID cookie has been set, if not we request a new userID and make the cookie */
		userId = (jCore.readCookie("userID"))?jCore.readCookie("userID"):"";
		
		/* debugPath will help us modify ajax calls for development purposes. to trigger put debug=true in url */
		debugPath = (jCore.getUrlParam("debug") == "true")?"/Html":"";
		
		// the blankItemStats is used when we have an error or timeout getting the actual item stats.
		blankItemStats = {
			"clicks": 1446,
			"comments": 0, 			// int : number of comments of the current item
			"votes" : 0, 			// int : number of votes of the current item (sometimes refered to as ratings)
			"rating" : 3.00, 		// int : the current calculated rating of the current item
			"userVoted" : false, 	// boolean : if user has rated current item. based on current itemId and current userID.
			"usersRating" : null,	// int or null : rating of current item. based on current itemId and current userId.
			"userId" : ""			// string : current userId generated by sitecore.
		};
		// make call to item stats.  On callback init the jCore object.
		$.ajax({type: "GET", url: debugPath+"/Handlers/ItemStats.ajax", data:"id="+itemId+"&userid="+userId,dataType:"json",cache:false,
		   success: function(updatedItemStatistics){
				jCore.writeCookie("userID",updatedItemStatistics.userId, 365);
				jCore.assignItemStats(shareURL,shareTitle,itemId,updatedItemStatistics,pollIdsArray,debugPath);
			},
			error: function(error){
				jCore.assignItemStats(shareURL,shareTitle,itemId,blankItemStats,pollIdsArray,debugPath);
			},
			timeout: function(error){
				jCore.assignItemStats(shareURL,shareTitle,itemId,blankItemStats,pollIdsArray,debugPath);
			}
		});
	},
	assignItemStats: function(shareURL,shareTitle,itemId,itemStats,pollIdsArray,debugPath) {
		this.shareURL = shareURL; // url of the item/page
		this.shareTitle=shareTitle; // title of the item/page
		this.itemId=itemId; // sitecore id of the item/page
		this.itemStats=itemStats; // stats on the item
		this.pollIdsArray=new Array(); // array of poll ids for polls on current page
		this.debugPath = debugPath;
		//this goes through polls on the page and initializes
		$(".jcorePoll").each(function(i) {
			jCore.pollIdsArray.push(this.id); // store this poll id in an array for later
			jCore.initPoll(i); // initialize this poll
		});
		
		// initialize all ratings
		updateRatingStats(itemStats); 
	},
	cookieTest: function() {
		var cookieEnabled=(navigator.cookieEnabled)? true : false
		//if not IE4+ nor NS6+
		if (typeof navigator.cookieEnabled=="undefined" && !cookieEnabled){ 
			document.cookie="testcookie"
			cookieEnabled=(document.cookie.indexOf("testcookie")!=-1)? true : false
		}
		if(!cookieEnabled) {
			alert("Cookies are required for this site to run properly.  Please enable cookies in your browser settings and reload page.");
			return false;
		}
	},
	// **************************************************************
	// Poll Module methods
	// 
	// **************************************************************
	pollItems: new Array(),
	initPoll: function(i) {
		// set up this poll item. this is done for each poll item on the page.
		this.pollItems[i] = {
			pollId: jCore.pollIdsArray[i],
			pollForm: document.getElementById(jCore.pollIdsArray[i]),
			pollContainer: document.getElementById(jCore.pollIdsArray[i]+"Container"),
			pollUrl: $("#"+jCore.pollIdsArray[i]).attr("action")
		}
		// lets go ahead and store the source code for later use in results.
		jCore.tempPollSource(i, this.pollItems[i].pollContainer);
		
		// lets request current poll results handler. this will tell us if the user has already submitted to this poll.
		$.ajax({
			type: "GET",
			url: jCore.debugPath+"/Handlers/Poll.ajax",
			dataType: "json",
			cache:false,
			data:"id="+jCore.pollIdsArray[i]+"&userID="+jCore.itemStats.userId,
			success: function(pollJSON){
				if(pollJSON.userClicked) {
					// user already voted. show results.
					jCore.showPollResults(i,pollJSON);
				} else {
					// user has not voted. attach submit event to form.
					$("#"+jCore.pollItems[i].pollId).submit(function() {
						return jCore.submitPoll(i,jCore.pollItems[i].pollId,jCore.pollItems[i].pollForm,jCore.pollItems[i].pollContainer,jCore.pollItems[i].pollurl);
					});
				}
			}
		});
	},
	submitPoll: function(i,pollId,pollForm,pollContainer,pollurl) {
		// get currently selection to submit
		var pollValue = $("input:radio:checked", pollForm).val();
		// if there is no selection we stop and alert user.
		if(!pollValue)
			alert("Please select a poll answer");
		else {
			// if we made it this far, we go ahead and submit the poll. on success we re-request the poll results handler
			$.ajax({
				type: "GET",
				url: jCore.debugPath+"/Handlers/PollClick.ajax",
				data: "id="+pollId+"&choiceId="+pollValue+"&userid="+jCore.itemStats.userId,
				cache:false,
				success: function(pollResults){
					if(pollResults.processed = true)
						jCore.getPollResults(i);
				}
			});	
		}
		return false;
	},
	getPollResults: function(i) {
		// request results. this is called on a successful poll submission. on success we show results.
		$.ajax({
			type: "GET",
			url: jCore.debugPath+"/Handlers/Poll.ajax",
			dataType:"json",
			cache:false,
			data:"id="+jCore.pollItems[i].pollId+"&userid="+jCore.itemStats.userId,
			success: function(pollresults){
				jCore.showPollResults(i, pollresults);
			}
		});
	},
	showPollResults: function(i, pollresults) {
		var values=[];
		
		// Go through all of the results, storing their percentages in to the values array
		for(p=0;p<pollresults.poll.length;p++) {
			values.push(pollresults.poll[p].percentage);
		}
		
		// Sort the array of values so we go from highest in pos 0 to lowest percentages
		values.sort(function(a,b) {
			return b - a;
		});
		
		// modify stored source object with percentages from poll results json
		for(p=0;p<pollresults.poll.length;p++) {
			var perc=pollresults.poll[p].percentage;
			
			// Find the position in values with the same percentage - so we know what position the item should be in
			var pos=-1;
			for (var j=0; j<values.length; j++) {
				if (pos==-1) {
					if (values[j]==perc) {
						pos=j;
					}
				}
			}
			
			var iid=pollresults.poll[p].itemId;
			var newVal=jCore.pollItems[i].pollSource[iid];
			// Replace #P# with the percentage
			newVal=newVal.replace(/#P#/g,perc);
			// Replace #POS# with the position
			newVal=newVal.replace(/#POS#/g, pos);
			jCore.pollItems[i].pollSource[iid] = newVal;
		}
		
		// create an array to hold final source code for results
		tempSource=new Array;
		for (var qId in jCore.pollItems[i].pollSource) {
			tempSource.push(jCore.pollItems[i].pollSource[qId]);
		}
		
		// Tack on the total number of votes
		tempSource.push('<div class="pollTotal"><span class="pollTotalValue">' + pollresults.totalClicks + '</span> <span class="pollTotalLabel">Total Votes. Poll results are not scientific.</span></div>');
		
		// output final source code for results
		pCont = $(this.pollItems[i].pollContainer);
		pCont.html(tempSource.join(""));
		
	},
	tempPollSource: function(p, pollContainer) {
		// new object inside this poll item to store source code for later use in results
		jCore.pollItems[p].pollSource=new Object();
		// if the input is also inside the label, we want to remove it. here we create the reg exp to do that
		inputReg = new RegExp(/<input[^>]*>/); 
		// for each label we store a string for later use in results source code.
		$("label", pollContainer).each(function(i) {
			inputFor = document.getElementById($(this).attr("for")).value;
			cleanSource = this.innerHTML.replace(inputReg, "");
			jCore.pollItems[p].pollSource[inputFor]= "<div class='pollResultRow pollResultsPos#POS#'><div class='pollResultBar' style='width:#P#%;'><div></div></div><span>#P#%</span><div>"+cleanSource+"</div></div>";
		});

	},
	// **************************************************************
	// Rating Module methods
	// 
	// **************************************************************
	initRating: function() {
		
	},
	// **************************************************************
	// Utility methods
	// **************************************************************
	log: function(v) {
		if(window.console)
			console.log(v);
	},
	findPos: function(obj) {
		var curleft = curtop = 0;
		if (obj.offsetParent) {
			do {
				curleft += obj.offsetLeft;
				curtop += obj.offsetTop;
			} while (obj = obj.offsetParent);
		return [curleft,curtop];
		}
	},
	readCookie: function(name) {
		var nameEQ = name + "=";
		var ca = document.cookie.split(';');
		for(var i=0; i < ca.length; i++)
		{
			var c = ca[i];
			while (c.charAt(0)==' ') c = c.substring(1,c.length);
			if (c.indexOf(nameEQ) == 0)
				return c.substring(nameEQ.length,c.length);
		}
		return false;
	},
	writeCookie: function(name,value,days) {
		if(days)
		{
			var date = new Date();
			date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
			var expires = "; expires=" + date.toGMTString();
			document.cookie = name + "=" + value + expires + "; path=/";	
		}
		else
		{
			var expires = "";
			document.cookie = name+"="+value+expires+"; path=/; domain="+globalDomain;
		}
	},
	openWin: function(url,wName,para) {
		if(typeof(arguments[2]) == "object")
		var values = jCore.parameters(arguments[2]);
		window.open(url,wName,values);
	},
	parameters: function (attributes)
	{
		var values = [];
		for(attribute in attributes)
		{
			values.push(attribute + "=" + attributes[attribute].toString());
		}
		return values.join(",");
	},
	getUrlParam: function(name) {
		name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
		var regexS = "[\\?&]"+name+"=([^&#]*)";
		var regex = new RegExp( regexS );
		var results = regex.exec( window.location.href );
		if( results == null )
			return "";
		else
			return results[1];
	}
};
// pointer for function call in each page. Now sent to already existing jCore object.
jCoreInit = function(shareURL,shareTitle,itemId,pollIdsArray) {jCore.jCoreInit(shareURL,shareTitle,itemId,pollIdsArray);}

function prepRatingSystem(e) {
	var rateInfo = $(".shareBarRatings:eq("+e+") li a:first");
		
	$(".shareBarRatings:eq("+e+") ul").mouseover(function() {
		$(".shareBarRatings:eq("+e+") ul").addClass("ratingHover");				   
	});
	
	$(".shareBarRatings:eq("+e+") ul").mouseout(function() {
		$(".shareBarRatings:eq("+e+") ul").removeClass("ratingHover");		
	});
	
	$(".shareBarRatings:eq("+e+")>ul>li a").click(function() {
		rateContent(this);
		return false;
	});
}

// function to submit rating
function rateContent(el) {
	var rateResultPage = $(el).attr("href");	
	$.ajax({
		type: "GET",url: rateResultPage+"&id="+jCore.itemId+"&userid="+jCore.itemStats.userId,dataType: "json",cache:false,
		success: function(rateJSON){
			if(rateJSON.processed == true) {
				updateRating();
			} else if(rateJSON.processed == false) {
				alert("We are sorry, we were unable to save your rating at this time. Please try again later.");
			}
		}
	});
}
function updateRating() {
	var url=jCore.debugPath+"/Handlers/ItemStats.ajax";
	var data="id="+jCore.itemId+"&userid="+jCore.itemStats.userId;
	$.ajax({type: "GET", 
		   url: url, 
		   data: data,
		   dataType:"json",
		   cache:false,
	   success: function(updatedItemStatistics){
			updateRatingStats(updatedItemStatistics);
			disableRatings();
		}
	});

}

function updateRatingStats(itemStats) {
    if (itemStats.userVoted == true)
        disableRatings();
    $(".shareBarRatings p span.ratingTotalVotes").html("(" + itemStats.votes + " Votes)");
    $(".currentRating").width(itemStats.rating * 13);
    var comments = itemStats.comments;
    if (comments == 0) {
        comments = "+";
    }
    $(".shareBarComments a").html("" + comments);
}
function disableRatings() {
    $(".shareBarRatings li a").remove();
    $(".shareBarRatings ul").removeClass("ratingHover").unbind("mouseover");
}