var presentation = ["<word>major antagonist<\/word>","<word>animatronic chicken<\/word>","<word>backup singer<\/word>","<word>free-roaming mode<\/word>","<word>servos from locking up.<\/word>","<phrase>Chica is a <strong data-readahead=\"major antagonist\" class=\"presentation_word\">major antagonist<\/strong> in the Five Nights at Freddy's franchise. Chica is an <strong data-readahead=\"animatronic chicken\" class=\"presentation_word\">animatronic chicken<\/strong> and children's entertainer housed at Freddy Fazbear's Pizza, along with Freddy Fazbear and Bonnie. She is the <strong data-readahead=\"backup singer\" class=\"presentation_word\">backup singer<\/strong> standing on the right-side in Freddy's band. At midnight, she is supposedly left in a \"<strong data-readahead=\"free-roaming mode\" class=\"presentation_word\">free-roaming mode<\/strong>\" until 6 AM, to prevent her <strong data-readahead=\"servos from locking up.\" class=\"presentation_word\">servos from locking up.<\/strong><\/phrase>","<word>forcefully stuff any human<\/word>","<word>resulting in death<\/word>","<word>haunted by a child<\/word>","<word>revenge<\/word>","<word>William Afton<\/word>","<phrase>Along with the other animatronics, Chica will try to <strong data-readahead=\"forcefully stuff any human\" class=\"presentation_word\">forcefully stuff any human<\/strong> she sees after hours into a Freddy Fazbear suit, <strong data-readahead=\"resulting in death\" class=\"presentation_word\">resulting in death<\/strong>. Like the other classic animatronics Chica is <strong data-readahead=\"haunted by a child\" class=\"presentation_word\">haunted by a child<\/strong> who was murdered at the pizzeria and now haunts Chica looking for <strong data-readahead=\"revenge\" class=\"presentation_word\">revenge<\/strong> against her murderer <strong data-readahead=\"William Afton\" class=\"presentation_word\">William Afton<\/strong>.<\/phrase>","<word>animatronic chicken<\/word>","<word>orange beak<\/word>","<word>LET'S EAT<\/word>","<phrase>\"A yellow <strong data-readahead=\"animatronic chicken\" class=\"presentation_word\">animatronic chicken<\/strong> with an <strong data-readahead=\"orange beak\" class=\"presentation_word\">orange beak<\/strong> and magenta eyes; wears a bib that reads \"<strong data-readahead=\"LET'S EAT\" class=\"presentation_word\">LET'S EAT<\/strong>!\"<\/phrase>","<word>animatronic chicken<\/word>","<word>orange beak<\/word>","<word>white bib<\/word>","<word>LET'S EAT<\/word>","<word>tiny stylized pizza slices<\/word>","<phrase>Chica is a bright yellow <strong data-readahead=\"animatronic chicken\" class=\"presentation_word\">animatronic chicken<\/strong> with a spherically-shaped head, <strong data-readahead=\"orange beak\" class=\"presentation_word\">orange beak<\/strong>, magenta eyes, and black eyebrows. On the top of her head are three \"tufts\" of feathers. She has two talons from each of her orange feet. She wears a <strong data-readahead=\"white bib\" class=\"presentation_word\">white bib<\/strong> that reads \"<strong data-readahead=\"LET'S EAT\" class=\"presentation_word\">LET'S EAT<\/strong>!!!\" in yellow bubble letters, outlined in purple and the bib is flecked with tricolored triangles in patterns of three, and what appear to be <strong data-readahead=\"tiny stylized pizza slices\" class=\"presentation_word\">tiny stylized pizza slices<\/strong>.<\/phrase>","<word>Mr. Cupcake<\/word>","<word>yellow-striped birthday candle<\/word>","<word>buck teeth<\/word>","<phrase><strong data-readahead=\"Mr. Cupcake\" class=\"presentation_word\">Mr. Cupcake<\/strong> is an object-like character from a tray carried by Chica with her left hand. It has pink-frosting with two large yellow eyes, a <strong data-readahead=\"yellow-striped birthday candle\" class=\"presentation_word\">yellow-striped birthday candle<\/strong> with a vinyl candle-light, <strong data-readahead=\"buck teeth\" class=\"presentation_word\">buck teeth<\/strong>, no wrapper, and, like other animatronics (except Foxy and Golden Freddy), has black eyelids.<\/phrase>","<word>numerous appearances<\/word>","<word>rarely jumpscares<\/word>","<phrase>First appearing in the first game, the Cupcake later makes <strong data-readahead=\"numerous appearances\" class=\"presentation_word\">numerous appearances<\/strong> in other games, and <strong data-readahead=\"rarely jumpscares\" class=\"presentation_word\">rarely jumpscares<\/strong>. Only being seen in Help Wanted, and the cupcake's nightmare counterpart in Five Nights at Freddy's 4.<\/phrase>","<word>gluttonous<\/word>","<word>lovable singing animatronic<\/word>","<word>love for food<\/word>","<word>emanating<\/word>","<word>goal of killing<\/word>","<word>gluttonous tendencies<\/word>","<word>covered in pizza<\/word>","<phrase>Based on the Freddy Fazbear's Pizza Theme Song song, Chica is a pushy, <strong data-readahead=\"gluttonous\" class=\"presentation_word\">gluttonous<\/strong> but <strong data-readahead=\"lovable singing animatronic\" class=\"presentation_word\">lovable singing animatronic<\/strong> bot who has <strong data-readahead=\"love for food\" class=\"presentation_word\">love for food<\/strong>, especially pizza. The Pizza Party level in Night Terrors also demonstrates this by actively eating pizza from a room that appears to be the kitchen, and in the first game, one can hear clanging sounds <strong data-readahead=\"emanating\" class=\"presentation_word\">emanating<\/strong> from the kitchen. In both occasions, she was distracted by her <strong data-readahead=\"goal of killing\" class=\"presentation_word\">goal of killing<\/strong> the player, implying that her gluttony can distract her at times. According to HandUnit's instructions in \"Parts and Service: Chica\", she still maintains her <strong data-readahead=\"gluttonous tendencies\" class=\"presentation_word\">gluttonous tendencies<\/strong> as she is <strong data-readahead=\"covered in pizza\" class=\"presentation_word\">covered in pizza<\/strong>.<\/phrase>","<word>pushy and determined<\/word>","<word>long periods<\/word>","<phrase>Chica also seems to be very <strong data-readahead=\"pushy and determined\" class=\"presentation_word\">pushy and determined<\/strong>, as when she gets to the night guard's door, she will stay there for <strong data-readahead=\"long periods\" class=\"presentation_word\">long periods<\/strong> of time far longer than Bonnie would.<\/phrase>","<word>contemptuous survivor<\/word>","<word>ominous buzzing<\/word>","<word>Missing Children Incident<\/word>","<phrase>As Withered Chica, in Ultimate Custom Night, she seems to be a <strong data-readahead=\"contemptuous survivor\" class=\"presentation_word\">contemptuous survivor<\/strong>, feeling strangely aware of the fact that she is damaged. Her voice has a lot of <strong data-readahead=\"ominous buzzing\" class=\"presentation_word\">ominous buzzing<\/strong> and fan-like noises in the background. One of her voice lines heavily imply that she was the first murdered victim from the <strong data-readahead=\"Missing Children Incident\" class=\"presentation_word\">Missing Children Incident<\/strong>.<\/phrase>"];
	var currentPosition = 0;
	var totalPositions = 0;
	var timePerWord = 1500;
	var timePerPhraseWord = 120
	var readAheadPlayerTimer;
	var autoPlay = true;
	var setMinimized = false;

	var wordSpeedOptions = {'Slower':2000,'Moderate':1200,'Fast':800};
	var phraseSpeedOptions = {'Slower':280,'Moderate':200,'Fast':80};
	var defaultWordSpeedOption = 'Moderate';
	var defaultPhraseSpeedOption = 'Moderate';
	var logToLTI = false;

	$(window).load(function(){
		totalPositions = presentation.length;
		if (totalPositions > 0){
			$('body').prepend('<div id="read_ahead_player_back"></div>');
			$('body').prepend('<div id="read_ahead_player"></div>');
			$('#read_ahead_player').prepend('<div id="read_ahead_player_field" class="read_ahead_word_section"></div>');
			initializeReadAheadControls();
			initializeReadAheadSlider();
			initializeReadAheadSpeedOptions();
			currentReadAheadControls();
			resumeReadAheadPlayback();
		}
	});

	$(document).keyup(function(e){
		switch(e.which) {
			case 37: 
				pauseReadAheadPresentation();
				priorReadAheadPresentationItem();
				break;
			case 39:
				pauseReadAheadPresentation();
				nextReadAheadPresentationItem();
				break;
			default:
				break;
		}

	});

	function initializeReadAheadControls(){
		var s = '';
		s += '<a href="javascript:void(0)" onclick="read_ahead_switch_min_max(true);" id="read_ahead_player_max_min" class="player-icons" aria-label="minimize/maximize player">';
		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-minus fa-stack-1x fa-inverse"></i></span>';
		s += '</a>';
		s += '<div id="read_ahead_controls">';
		s += '<a href="javascript:void(0)" onclick="priorReadAheadPresentationItem()" id="read_ahead_player_previous_word" class="player-icons" aria-label="previous keyword">';
		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-backward fa-stack-1x fa-inverse"></i></span>';
		s += '</a>';
		s += '<a href="javascript:void(0)" onclick="pauseReadAheadPresentation()" id="read_ahead_player_pause_play" class="player-icons" aria-label="play/pause">';
		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-pause fa-stack-1x fa-inverse"></i></span>';
		s += '</a>';
		s += '<a href="javascript:void(0)" onclick="nextReadAheadPresentationItem()" id="read_ahead_player_next_word" class="player-icons" aria-label="next keyword">';
		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-forward fa-stack-1x fa-inverse"></i></span>';
		s += '</a>';
		s += '</div>';
		$('#read_ahead_player').append(s);
	}

	function initializeReadAheadSlider(){
		var s = '';
		s += '<div class="read_ahead_slider" id="readAheadSlider">';
		s += '<div class="read_ahead_slider_bar" id="readAheadSliderBar"></div>';
		s += '</div>';
		$('#read_ahead_controls').prepend(s);
		updateReadAheadSliderPosition();
	}

	function initializeReadAheadSpeedOptions(){
		var s = '<div id="read_ahead_player_options">';
		s += '<div class="slider_control" id="slider_control_word_speed">';
		s += ' Word Speed<br/>';
		s += '<div class="slider_bar">';
		optionCount = 0;
		for (index in wordSpeedOptions) { optionCount++; }
		optionWidth = 100 / optionCount;
		for (index in wordSpeedOptions) {
			var option = wordSpeedOptions[index];
			if (index == defaultWordSpeedOption) {
				s += '<a href="javascript:void(0)" id="slider_control_word_speed_'+option+'" onclick="updateReadAheadWordSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" class="current_speed" aria-label="'+index+'"></a>';
				updateReadAheadWordSpeed(option);
			} else {
				s += '<a href="javascript:void(0)" id="slider_control_word_speed_'+option+'" onclick="updateReadAheadWordSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" aria-label="'+index+'"></a>';
			}
		}
		s += '</div>';
		s += '</div>';
		s += '<div class="slider_control" id="slider_control_phrase_speed">';
		s += ' Phrase Speed<br/>';
		s += '<div class="slider_bar">';
		optionCount = 0;
		for (index in phraseSpeedOptions) { optionCount++; }
		optionWidth = 100 / optionCount;
		for (index in phraseSpeedOptions) {
			var option = phraseSpeedOptions[index];
			if (index == defaultWordSpeedOption) {
				s += '<a href="javascript:void(0)" id="slider_control_phrase_speed_'+option+'" onclick="updateReadAheadPhraseSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" class="current_speed" aria-label="'+index+'"></a>';
				updateReadAheadPhraseSpeed(option);
			} else {
				s += '<a href="javascript:void(0)" id="slider_control_phrase_speed_'+option+'" onclick="updateReadAheadPhraseSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" aria-label="'+index+'"></a>';
			}
		}
		s += '</div>';
		s += '</div>';
		s += '</div>';
		$('#read_ahead_controls').append(s);
	}

	function updateReadAheadWordSpeed(microseconds,sender) {
		microseconds = microseconds != undefined && microseconds > 0 ? microseconds : 0;
		if (microseconds > 0) { timePerWord = microseconds; }
		if (sender!=undefined) { 
			$('#slider_control_word_speed').find('a').removeClass('current_speed');
			$(sender).addClass('current_speed');
		}
		logReadAheadPlayerAction('updateReadAheadWordSpeed','Presentation',microseconds);
	}

	function updateReadAheadPhraseSpeed(microseconds,sender) {
		microseconds = microseconds != undefined && microseconds > 0 ? microseconds : 0;
		if (microseconds > 0 ) { timePerPhraseWord = microseconds; }
		if (sender!=undefined) { 
			$('#slider_control_phrase_speed').find('a').removeClass('current_speed');
			$(sender).addClass('current_speed');
		}
		logReadAheadPlayerAction('updateReadAheadPhraseSpeed','Presentation',microseconds);
	}

	function updateReadAheadSliderPosition(){
		var currentSliderBarWidth = 100 - (100 / totalPositions * (currentPosition + 1));
		$('#readAheadSliderBar').css('width',currentSliderBarWidth+'%');
	}

	function currentReadAheadControls(){
		$('#read_ahead_player_pause_play').show();
		if (currentPosition < totalPositions - 1)	{
			$('#read_ahead_player_next_word').removeClass('disabled');
		} else {
			$('#read_ahead_player_next_word').addClass('disabled');
		}
		if (currentPosition > 0) {
			$('#read_ahead_player_previous_word').removeClass('disabled');
		} else {
			$('#read_ahead_player_previous_word').addClass('disabled');
		}
	}

	function restartReadAheadPresentation(){
		currentPosition = 0;
		logReadAheadPlayerAction('restartReadAheadPresentation','Presentation','');
		resumeReadAheadPlayback();
	}

	function resumeReadAheadPlayback(){
		$('.fa-repeat').removeClass('fa-repeat').addClass('fa-play');
		$('#read_ahead_player_pause_play').each(function(){
			$(this).find('.fa-play').removeClass('fa-play').addClass('fa-pause');
			$(this).off('click');
			$(this).attr('onclick','pauseReadAheadPresentation()');
		});
		logReadAheadPlayerAction('resumeReadAheadPlayback','Presentation','');
		playReadAheadPresentation();
	}

	function pauseReadAheadPresentation(){
		$('#read_ahead_player_pause_play').each(function(){
			$(this).find('.fa-pause').removeClass('fa-pause').addClass('fa-play');
			$(this).off('click');
			$(this).attr('onclick','resumeReadAheadPlayback()');
		});
		logReadAheadPlayerAction('pauseReadAheadPresentation','Presentation','');
		read_ahead_pause();
	}

	function endReadAheadPresentation(){
		$('.fa-play').removeClass('fa-play').addClass('fa-repeat');
		$('.fa-pause').removeClass('fa-pause').addClass('fa-repeat');
		$('#read_ahead_player_pause_play').each(function(){
			$(this).off('click');
			$(this).attr('onclick','restartReadAheadPresentation()');
		});
		logReadAheadPlayerAction('endReadAheadPresentation','Presentation','');
		logLTIEndPresentation();
	}

	function playReadAheadPresentation(){
		autoPlay=true;
		currentPosition--;
		logReadAheadPlayerAction('playReadAheadPresentation','Presentation','');
		nextReadAheadPresentationItem(); 
	}

	function startReadAheadStepper(timeDisplayWord){
		clearInterval(readAheadPlayerTimer);
		readAheadPlayerTimer = setTimeout(function() { read_ahead_step(); },timeDisplayWord);
	}

	function stopReadAheadStepper(){
		clearInterval(readAheadPlayerTimer);
	}

	function read_ahead_step(){
		if (autoPlay) {
			nextReadAheadPresentationItem();
		}
	}

	function read_ahead_pause(){
		autoPlay=false;
		stopReadAheadStepper();
	}

	function showReadAheadPresentationItem(index){
		currentPosition = index;
		currentPresentationItem = presentation[currentPosition] != undefined ? presentation[currentPosition].trim() : "";
		if (currentPresentationItem != "") {
			currentItemWordCount = presentation[currentPosition].replace("\n","").split(" ").length;
			if (currentPresentationItem.startsWith("<word>")){
				startReadAheadStepper(currentItemWordCount*timePerWord);
				$('#read_ahead_player_field').html('<div class="read_ahead_word" style="display:block;">'+currentPresentationItem+'</div>');
				logReadAheadPlayerAction('showReadAheadPresentationItem','Word',currentPresentationItem);
		
			} else {
				startReadAheadStepper(currentItemWordCount*timePerPhraseWord);
				$('#read_ahead_player_field').html('<div class="read_ahead_text_box" style="display:block;"><div class="read_ahead_text">'+currentPresentationItem.replace("\n","<br />")+'</div></div>');
				logReadAheadPlayerAction('showReadAheadPresentationItem','Phrase','');
		
			}
		} else {
			if (currentPosition < totalPositions) {
				nextReadAheadPresentationItem();
			} else {
				endReadAheadPresentation();
				read_ahead_minimize();
			}
		}
		currentReadAheadControls();
		updateReadAheadSliderPosition();
		saveReadAheadPosition();
	}

	function priorReadAheadPresentationItem(){
		stopReadAheadStepper();
		logReadAheadPlayerAction('priorReadAheadPresentationItem','Controls','');
		showReadAheadPresentationItem(currentPosition-1);
	}


	function nextReadAheadPresentationItem(){
		stopReadAheadStepper();
		logReadAheadPlayerAction('nextReadAheadPresentationItem','Controls','');
		showReadAheadPresentationItem(currentPosition+1);
	}

	function read_ahead_playAgain(){
		currentWordIndex = 0;
		logReadAheadPlayerAction('read_ahead_playAgain','Controls','');
		playReadAheadPresentation();
	}


	function read_ahead_minimize(){
		setMinimized = true;
		logReadAheadPlayerAction('read_ahead_minimize','Controls','');
		read_ahead_switch_min_max();
	}

	function read_ahead_maximize(){
		setMinimized = false;
		logReadAheadPlayerAction('read_ahead_maximize','Controls','');
		read_ahead_switch_min_max();
	}

	function read_ahead_switch_min_max(forceSwitch){
		forceSwitch = forceSwitch != undefined ? forceSwitch : false;
		if (forceSwitch) { setMinimized = !setMinimized; }

		if (setMinimized) {
			$('#read_ahead_player_back').fadeOut();
			$('#read_ahead_player').addClass('minimize');
			$('.player-icons .fa-stack').removeClass('fa-lg').addClass('fa-sm');
			$('.player-icons .fa-minus').removeClass('fa-minus').addClass('fa-expand');
			logReadAheadPlayerAction('read_ahead_switch_min_max','Min','');
			//$('#read_ahead_player_max_min').each(function(){
			//	$(this).off('click');
			//	$(this).attr('onclick','read_ahead_maximize()');
			//});
		} else {
			$('#read_ahead_player_back').fadeIn();
			$('#read_ahead_player').removeClass('minimize');
			$('.player-icons .fa-stack').removeClass('fa-sm').addClass('fa-lg');
			$('.player-icons .fa-expand').removeClass('fa-expand').addClass('fa-minus');
			logReadAheadPlayerAction('read_ahead_switch_min_max','Max','');
			//$('#read_ahead_player_max_min').each(function(){
			//	$(this).off('click');
			//	$(this).attr('onclick','read_ahead_minimize()');
			//});
		}

	}

	function saveReadAheadPosition(){
		$.ajax({
			type:'POST',
			url:'/ajax/save_user_presentation_position.php',
			data: { 'id':3020,
					'position': currentPosition
				}
		})
		.done(function(results){
		})
		.fail(function( jqXHR, textStatus ) {
			alert( "Request failed: " + textStatus );
		});

	}

	function logLTIEndPresentation(action) {
		if (!logToLTI) {
			return;
		}

		$.ajax({
			type:'POST',
			url:'/lti/presentationEnded.php',
			data: { 'documentId':3020,
					'userId':0,
				}
		})
	}

	function logReadAheadPlayerAction(action,area,details){
		var d = new Date();
		var t = d.getTime();
		action = action != undefined ? action.trim() : 'UNKNOWN';
		area = area != undefined ? area.trim() : '';
		details = details != undefined ? details : '';

		// If we are about to show a new word, increase the number of keywords
		// reinforced so we can log that for the Dashboard page.
		if (area == 'Word') {
			window.keywordCount++;
		}

		$.ajax({
			type:'POST',
			url:'/logging/logPlayerAction.php',
			data: { 'documentId':3020,
					'userId':0,
					'playerAction':action,
					'playerArea':area,
					'details':details,
					'timestamp': t
				}
		})
		.done(function(results){
		})
		.fail(function( jqXHR, textStatus ) {
			alert( "Request failed: " + textStatus );
		});

	}