var totalCorrect = 0;
var count = 0;
var verboseCorrectAnswers = [];
var startTimeStamp = new Date();
var lable1;
var lable2;
var lable3;
var lable4;
var lable5;
var lable6;
var lable7;

var langcode; 
 try {
	langcode = document.getElementsByClassName('language')[0].getAttribute('id');
 }

 catch (e){

 }


switch (langcode) {
	case 'en' :
		lable1 = ' Testing completed. Your result ';
		lable2 = ' correct answers from ';
		lable3 = 'Question Number';
		lable4 = 'Question text';
		lable5 = 'Correct answer';
		lable6 = 'The answer is incorrect.';
		lable7 = 'The answer is correct.';
		break;
	case 'ru' :
		lable1 = ' Тестирование завершено. Ваш результат ';
		lable2 = ' правильных ответов из ';
		lable3 = 'Номер вопроса';
		lable4 = 'Текст вопроса';
		lable5 = 'Правильность ответа';
		lable6 = 'Ответ неверный.';
		lable7 = 'Ответ верный.';
		break;
	case 'es' :
		lable1 = ' Test completado. Su resultado ';
		lable2 = ' respuestas correctas de ';
		lable3 = 'Número de la pregunta';
		lable4 = 'Texto de la pregunta';
		lable5 = 'Corrección de la respuesta';
		lable6 = 'Respuesta incorrecta';
		lable7 = 'Respuesta correcta';
		break;		
}


// For Hotspots
var selectedHotspot = null;

function toggle_visibility(id)
{
        var e = document.getElementById(id);		
		if(e.style.display == 'block' | e.style == null)
		{
			e.style.display = 'none';
			return false;
		}
		else
		{
			e.style.display = 'block';
			return true;
		}
}

function navToContent(url) 
{
}

function activate_flash_hotspots(hs_id, hs_title, icn) 
{
    alert(icn + " \r\n" + hs_id + " \r\n" + hs_title);
}

function openWindow(theFileName) {

    alert(theFileName);

}

function showNextQuestion()
{
	var nextCount = count + 1;
	document.getElementById('questionNumber' + count).style.display = 'none';
	if (document.getElementById('questionNumber' + nextCount))
	{
		document.getElementById('questionNumber' + nextCount).style.display = 'block';
	}
	else
	{
		document.getElementById('grade').style.display = 'block';
		console.log(verboseCorrectAnswers);
		if (totalCorrect == 1)
		{
			document.getElementById('grade').innerHTML = lable1 + totalCorrect + lable2 + count + '.';
			//verboseCorrectAnswers.join('/');
			assessmentResult();
			showResultTable(verboseCorrectAnswers);
		}
		else
		{
			document.getElementById('grade').innerHTML = lable1 + totalCorrect + lable2 + count + '.';
			assessmentResult();
			showResultTable(verboseCorrectAnswers);
		}
	}
}

function showResultTable (resultArray) {
	var stringInnerTable = "";
	var verboseIsCorrect = "";
	stringInnerTable += '<table class="S1000DrandomList"><tr><th>'+lable3+'</th><th>'+lable4+'</th><th>'+lable5+'</th></tr>';
	for (index = 0; index < resultArray.length; ++index) {
		switch (resultArray[index][3]) {
			case 0: verboseIsCorrect = '<span style="color: red">'+lable6+'</span>'; break;
			case 1: verboseIsCorrect = '<span style="color: green">'+lable7+'</span>'; break;
		}
		stringInnerTable += '<tr>';
		stringInnerTable += '<td>'+resultArray[index][0]+'</td>';
		stringInnerTable += '<td>'+resultArray[index][1]+'</td>';
		stringInnerTable += '<td>'+verboseIsCorrect+'</td>';
		stringInnerTable += '</tr>';
	}
	stringInnerTable += '</table>';
	document.getElementById('tableResult').innerHTML = stringInnerTable;
}

function assessmentResult () {
	 var ratio = totalCorrect/count;
	 	 if (ratio > 0.7) {
	 doSetValue("cmi.score.scaled", ratio);
	 doSetValue("cmi.success_status", "passed");}
	 else {
		 doSetValue("cmi.score.scaled", totalCorrect);
		 doSetValue("cmi.success_status", "failed" );
		 
	 }
	 		doSetValue("cmi.completion_status", "completed");
}


function learnResult () {

	 		doSetValue("cmi.completion_status", "completed");
			doSetValue("cmi.success_status", "passed");
}
 
window.onunload = function()  {
	var endTimeStamp = new Date();
	var totalMilliseconds = (endTimeStamp.getTime() - startTimeStamp.getTime());
	var scormTime = ConvertMilliSecondsIntoSCORM2004Time(totalMilliseconds);
	doSetValue("cmi.session_time",scormTime);
	doSetValue( "cmi.exit", "suspend" );
	doTerminate();
}

function checkIfSingleTrue(radioObj, quizType)
{
	var radioLength = radioObj.answerChoiceRadio.length;
	var feedbackCorrect = document.getElementById('feedbackCorrect');
	var feedbackIncorrect = document.getElementById('feedbackIncorrect');
	var answer = null;
	var isCorrect =0;
	
	for(var i=0; i < radioLength; i++)
	{
		if(radioObj.answerChoiceRadio[i].checked)
		{
			answer = radioObj.answerChoiceRadio[i].value.split(", ");
		}
	}
	
	// Show feedback if Knowledge Check or go to next question for Assessment
	if (quizType == 'Knowledge Check')
	{
		// is answer correct?
		if (answer)
		{
			if (answer[1])
			{
				feedbackCorrect.style.display = 'block';
				feedbackIncorrect.style.display = 'none';
			}
			else
			{
				feedbackIncorrect.style.display = 'block';
				feedbackCorrect.style.display = 'none';
			}
		}
		else
		{
			feedbackCorrect.style.display = 'none';
			feedbackIncorrect.style.display = 'none';
		}
	}
	else
	{
		// Check if answer is correct
		if (answer)
		{
			if (answer[1])
			{
				isCorrect = 1;
				totalCorrect++;

			}
		}	
		count++;
		var questionText = radioObj.getElementsByClassName("questionText")[0].innerHTML;
		verboseCorrectAnswers.push([count,questionText,answer[1], isCorrect]);
		showNextQuestion();
	}
}

function checkIfMultipleTrue(checkObj, quizType)
{
	var feedbackCorrect = document.getElementById('feedbackCorrect');
	var feedbackIncorrect = document.getElementById('feedbackIncorrect');
	var checkLength = checkObj.answerChoiceCheckbox.length;
	var answer = null;
	var correctAnswers = [];
	var chosenAnswers = [];
	var correctChosenAnswers = [];
	var numberIncorrect = 0;
	var isCorrect = 0;

	for(var i=0; i < checkLength; i++)
	{
		answer = checkObj.answerChoiceCheckbox[i].value.split(", ");
		if (answer[1] != "")
		{
			correctAnswers.push(answer[1]);
		}
		if (checkObj.answerChoiceCheckbox[i].checked)
		{
			chosenAnswers.push(answer[0]);
			if (answer[1] != "")
			{
				correctChosenAnswers.push(answer[1]);
			}
		}
	}

	// Show feedback if Knowledge Check or go to next question for Assessment
	if (quizType == 'Knowledge Check')
	{
		// Check if answer is correct
		if (chosenAnswers.length == correctChosenAnswers.length)
		{
			if(correctChosenAnswers.length == correctAnswers.length)
			{
				feedbackIncorrect.style.display = 'none';
				feedbackCorrect.style.display = 'block';	
			}
			else
			{
				feedbackIncorrect.style.display = 'block';
				feedbackCorrect.style.display = 'none';	
			}
		}
		else
		{
			feedbackIncorrect.style.display = 'block';
			feedbackCorrect.style.display = 'none';	
		}
	}
	else
	{
		// Check if answer is correct
		if (chosenAnswers.length == correctChosenAnswers.length)
		{
			if(correctChosenAnswers.length == correctAnswers.length)
			{
				isCorrect = 1;
				totalCorrect++;	
			}
		}
		count++;
		var questionText = checkObj.getElementsByClassName("questionText")[0].innerHTML;
		verboseCorrectAnswers.push([count,questionText,correctChosenAnswers.length, isCorrect]);
		showNextQuestion();
	}
}

function checkIfMatchingTrue(selectObj, selectBoxCount)
{
	var isCorrect = 0;
	var correctAnswers = [];
	var chosenAnswers = [];
	var correctChosenAnswers = [];
	var selected = null;
	var selectedAnswer = null;
	var correctAnswer = null;
	var numberIncorrect = 0;

	for (var i=0; i < selectBoxCount; i++)
	{
		selectedAnswer = selectObj[i].value;
		correctAnswer = selectObj[i].name;

		if (selectedAnswer != correctAnswer)
		{
			numberIncorrect++;
		}
	}

	// WOULD HAVE SOMETHING LIKE THE FOLLOWING IF ABLE TO TEST AND WOULD NEED TO PASS IN quizType
	// Show feedback if Knowledge Check or go to next question for Assessment
	//if (quizType == 'Knowledge Check')

		if (numberIncorrect == 0)
		{
			isCorrect = 1;
			totalCorrect++;
		}
		count++;
		var questionText = selectObj.getElementsByClassName("questionText")[0].innerHTML;
		verboseCorrectAnswers.push([count,questionText,correctChosenAnswers.length, isCorrect]);
		showNextQuestion();		

}

// NOTE: This function does not deal with Knowledge Check because there were no Sortable Questions in Knowledge Check to test
function checkSortableCorrect (checkObj, position)
{
	var feedbackCorrect = document.getElementById('feedbackCorrect');
	var feedbackIncorrect = document.getElementById('feedbackIncorrect');
	var questionNumber = "#questionNumber" + position;
	var newOrdering = $(questionNumber).find( ".sortable" ).sortable('toArray');
	var isCorrect = true;

	for (var v = 0; v < newOrdering.length; v++)
	{
		if (newOrdering[v] != (v + 1))
		{
			isCorrect= false;
		}
	}

	// WOULD HAVE SOMETHING LIKE THE FOLLOWING IF ABLE TO TEST AND WOULD NEED TO PASS IN quizType
	// Show feedback if Knowledge Check or go to next question for Assessment
	/*if (quizType == 'Knowledge Check')
	{
		if (isCorrect)
		{
			feedbackCorrect.style.display = 'block';
			feedbackIncorrect.style.display = 'none';
			//noAnswerChosen.style.display = 'none'; //line not working completely
		}
		else
		{
			feedbackIncorrect.style.display = 'block';
			feedbackCorrect.style.display = 'none';
			//noAnswerChosen.style.display = 'none'; //line not working completely
		}
	}
	else
	{*/
	if (isCorrect)
	{
		totalCorrect++;
	}
	count++;
	var isCorrect2 = 0;
	if (isCorrect) {
		isCorrect2= 1;
	}
	var questionText = checkObj.getElementsByClassName("questionText")[0].innerHTML;
	verboseCorrectAnswers.push([count,questionText,newOrdering.length, isCorrect2]);
	showNextQuestion();
	//}
}

function shuffle(elems)
{
    allElems = (function(){
	var ret = [], l = elems.length;
	while (l--) { ret[ret.length] = elems[l]; }
	return ret;
    })();
 
    var shuffled = (function(){
        var l = allElems.length, ret = [];
        while (l--) {
            var random = Math.floor(Math.random() * allElems.length),
                randEl = allElems[random].cloneNode(true);
            allElems.splice(random, 1);
            ret[ret.length] = randEl;
        }
        return ret; 
    })(), l = elems.length;
 
    while (l--) {
        elems[l].parentNode.insertBefore(shuffled[l], elems[l].nextSibling);
        elems[l].parentNode.removeChild(elems[l]);
    } 
}

function showSlide(currentSlide, direction)
{
	var nextSlide = parseFloat(currentSlide) + 1;
	var previousSlide = parseFloat(currentSlide) - 1;
	
	if (direction == 'next')
	{
		document.getElementById('slide' + currentSlide).style.display = 'none';
		if (document.getElementById('slide' + nextSlide))
		{
			document.getElementById('slide' + nextSlide).style.display = 'block';
		}
	}
	if (direction == 'previous')
	{
		document.getElementById('slide' + currentSlide).style.display = 'none';
		if (document.getElementById('slide' + previousSlide))
		{
			document.getElementById('slide' + previousSlide).style.display = 'block';
		}
	}
}

function highlightArea(id, coords, countTotal)
{
	var coordsArray = new Array();
	coordsArray = coords.split(",");

	// left and right coordinates
	var xCoords = new Array();
	var minXCoord = null;
	var maxXCoord = null;
	// up and down coordinates
	var yCoords = new Array();
	var minYCoord = null;
	var maxYCoord = null;

	for (var i=0; i < coordsArray.length; i=i+2)
	{
		xCoords.push(coordsArray[i]);
		yCoords.push(coordsArray[i + 1]);
	}

	minXCoord = Math.min.apply(Math, xCoords);
	maxXCoord = Math.max.apply(Math, xCoords);
	
	minYCoord = Math.min.apply(Math, yCoords);
	maxYCoord = Math.max.apply(Math, yCoords);

	document.getElementById('div' + id).style.top = minYCoord;
	document.getElementById('div' + id).style.left = minXCoord;
	document.getElementById('div' + id).style.height = maxYCoord - minYCoord;//left = minXCoord;
	document.getElementById('div' + id).style.width = maxXCoord - minXCoord;//right = maxXCoord;
	
	// unhighlight all hotspots
	unhighlightArea(countTotal);

	// highlight only hotspot curser is over
	document.getElementById('div' + id).style.display = 'block';
}

function unhighlightArea(countTotal)
{
	for (var j=1; j <= countTotal; j++)
	{
		if (j != selectedHotspot)
		{
			document.getElementById('div' + j).style.display = 'none';
		}
	}
}

function selectArea(id, countTotal)
{
	selectedHotspot = id;
	unhighlightArea(countTotal);
}

function checkHotspotCorrect(correctAnswer, countTotal)
{
	var correctId = correctAnswer.replace(/^(hotspot)0*/, '');
	var feedbackCorrect = document.getElementById('feedbackCorrect');
	var feedbackIncorrect = document.getElementById('feedbackIncorrect');
	var correctCoords = document.getElementById('area' + correctId).getAttribute('coords');

	if (correctId == selectedHotspot)
	{
		feedbackIncorrect.style.display = 'none';
		feedbackCorrect.style.display = 'block';
	}
	else
	{
		if (selectedHotspot)
		{
			feedbackIncorrect.style.display = 'block';
			feedbackCorrect.style.display = 'none';
			document.getElementById('div' + selectedHotspot).style.display = 'none';
			
			// Changed the selected hotspot to be the correct hotspot for feedback
			selectedHotspot = correctId;
			highlightArea(correctId, correctCoords, countTotal);
			document.getElementById('div' + correctId).style.backgroundColor = '#30BF30';
		}
	}
}

function changeCallout(id, coords, countTotal)
{
	for (var j=1; j <= countTotal; j++)
	{
		document.getElementById('callout' + j).style.display = 'none';
	}
	
	var coordsArray = new Array();
	coordsArray = coords.split(",");

	// left and right coordinates
	var xCoords = new Array();
	var minXCoord = null;
	var maxXCoord = null;
	// up and down coordinates
	var yCoords = new Array();
	var minYCoord = null;
	var maxYCoord = null;

	for (var i=0; i < coordsArray.length; i=i+2)
	{
		xCoords.push(coordsArray[i]);
		yCoords.push(coordsArray[i + 1]);
	}

	minXCoord = Math.min.apply(Math, xCoords);
	maxXCoord = Math.max.apply(Math, xCoords);
	
	minYCoord = Math.min.apply(Math, yCoords);
	maxYCoord = Math.max.apply(Math, yCoords);

	document.getElementById('callout' + id).style.top = minYCoord;
	document.getElementById('callout' + id).style.left = minXCoord;
	document.getElementById('callout' + id).style.maxWidth = maxXCoord - minXCoord;
	
	document.getElementById('callout' + id).style.display = "block";
}

function ConvertMilliSecondsIntoSCORM2004Time(intTotalMilliseconds){
	
	var ScormTime = "";
	
	var HundredthsOfASecond;	//decrementing counter - work at the hundreths of a second level because that is all the precision that is required
	
	var Seconds;	// 100 hundreths of a seconds
	var Minutes;	// 60 seconds
	var Hours;		// 60 minutes
	var Days;		// 24 hours
	var Months;		// assumed to be an "average" month (figures a leap year every 4 years) = ((365*4) + 1) / 48 days - 30.4375 days per month
	var Years;		// assumed to be 12 "average" months
	
	var HUNDREDTHS_PER_SECOND = 100;
	var HUNDREDTHS_PER_MINUTE = HUNDREDTHS_PER_SECOND * 60;
	var HUNDREDTHS_PER_HOUR   = HUNDREDTHS_PER_MINUTE * 60;
	var HUNDREDTHS_PER_DAY    = HUNDREDTHS_PER_HOUR * 24;
	var HUNDREDTHS_PER_MONTH  = HUNDREDTHS_PER_DAY * (((365 * 4) + 1) / 48);
	var HUNDREDTHS_PER_YEAR   = HUNDREDTHS_PER_MONTH * 12;
	
	HundredthsOfASecond = Math.floor(intTotalMilliseconds / 10);
	
	Years = Math.floor(HundredthsOfASecond / HUNDREDTHS_PER_YEAR);
	HundredthsOfASecond -= (Years * HUNDREDTHS_PER_YEAR);
	
	Months = Math.floor(HundredthsOfASecond / HUNDREDTHS_PER_MONTH);
	HundredthsOfASecond -= (Months * HUNDREDTHS_PER_MONTH);
	
	Days = Math.floor(HundredthsOfASecond / HUNDREDTHS_PER_DAY);
	HundredthsOfASecond -= (Days * HUNDREDTHS_PER_DAY);
	
	Hours = Math.floor(HundredthsOfASecond / HUNDREDTHS_PER_HOUR);
	HundredthsOfASecond -= (Hours * HUNDREDTHS_PER_HOUR);
	
	Minutes = Math.floor(HundredthsOfASecond / HUNDREDTHS_PER_MINUTE);
	HundredthsOfASecond -= (Minutes * HUNDREDTHS_PER_MINUTE);
	
	Seconds = Math.floor(HundredthsOfASecond / HUNDREDTHS_PER_SECOND);
	HundredthsOfASecond -= (Seconds * HUNDREDTHS_PER_SECOND);
	
	if (Years > 0) {
		ScormTime += Years + "Y";
	}
	if (Months > 0){
		ScormTime += Months + "M";
	}
	if (Days > 0){
		ScormTime += Days + "D";
	}
	
	//check to see if we have any time before adding the "T"
	if ((HundredthsOfASecond + Seconds + Minutes + Hours) > 0 ){
		
		ScormTime += "T";
		
		if (Hours > 0){
			ScormTime += Hours + "H";
		}
		
		if (Minutes > 0){
			ScormTime += Minutes + "M";
		}
		
		if ((HundredthsOfASecond + Seconds) > 0){
			ScormTime += Seconds;
			
			if (HundredthsOfASecond > 0){
				ScormTime += "." + HundredthsOfASecond;
			}
			
			ScormTime += "S";
		}
		
	}
	
	if (ScormTime == ""){
		ScormTime = "0S";
	}
	
	ScormTime = "P" + ScormTime;
	
	return ScormTime;
}

function setStartTime() {
	startTimeStamp = new Date();
}