/***********************************************************************
                          media.js
************************************************************************
Do not change this file unless it should change for all users.

This file defines functions that deal with playing of video and audio

************************************************************************/

/*********************************************
Function: createAudioString
Indata: an array with links to the videos (hopefully same sound file in different formats)
Outdata: a string with the right encoding and tags to play video in a variety of formats

*********************************************/
var glob_audioID = "audioplayer";
Content.prototype.createAudioString = function(arrayWithFileNames, audioIdString){
	var c = this;

	//Save this to check if we're on the right page later
	var curPageID = c.currentPageItem.pageid;
	var audioString = "";

	//Creates the unique name of the audio id
	var idString = 'audioID_' + curPageID;

	//glob_audioID = idString;
	audioString += "<audio class='audioItem' id='" + idString +"'>";

	//goes through the array and creates a video source from each link
	for(var i = 0; i < arrayWithFileNames.length;i++){
		audioString += "<source src=" + arrayWithFileNames[i] + ">";
	}
	
	//Close our audio object
	audioString += "</audio>";
	//Create the script to deal with the audio object
	audioString += '<script type="text/javascript">';
	audioString += 'jwplayer("'+ idString + '").setup({ repeat: "none", controls:false, controlbar:"none", height: 0, width: 0, modes: [ ';
	//the mode bit says that the jwplayer should try with html5 before trying with flash
	audioString += "{ type: 'html5' }, { type: 'flash', src: 'javascript/player.swf' }], ";
	audioString += "events:{";
	audioString +=		"onReady:function(){checkAudioBeforePlaying('"+ idString +"');},"
	audioString +=		"onSetupError:function(){setupError('"+ idString +"');}"
	audioString += "}";
	audioString += "}) </script>";
	
	return audioString;
};

//Function that is triggered after the file loads (onReady - does this trigger more than once with the same audio file?)
//Checks if the page the audio was started on is the same as we're currently on (prevents the sound button from appearing on the wrong page)
function checkAudioBeforePlaying(audioID){

	var c = content;
	
	//Get current page id
	var curPageID = c.currentPageItem.pageid;
	//Turn the page id into an audio string
	var currString = 'audioID_' + curPageID;

	//Check if the audioID(the page when the audio was connected) is the same as currString (the current page)
	if(audioID == currString){
		showSoundButton();
	} else {
		hideSoundButton();
		stopAudio();
	}
}

function stopAudio(){
	var audioID = "audioplayer";
	var playerInstance = jwplayer(audioID);
	if(playerInstance == null){
		//No player exists.
		return;
	}

	try{
		playerInstance.stop();
	} catch(e){
		if(window.console){
			console.log("Error with stopAudio function: " + e);
		}
	}
}

function hideSoundButton(){
	$("#soundBtn").css('visibility', 'hidden');
}
function showSoundButton(){
	$("#soundBtn").css('visibility', 'visible');
}

function setupError(idString){
	if(window.console){
		console.log("setupError with jwplayer: " + idString);
	}
}


Content.prototype.loadAudio = function(audioObjects){
	var audioID = "audioplayer";
	var playerInstance = jwplayer(audioID);
	playerInstance.load([{
		file: audioObjects,
	}]);
	playerInstance.play();
}

Content.prototype.setupAudio = function(){
	var c = this;//Connect to our content
	
	//Create an array with audio objects
	var audioDataObjects = $(".audiofile");
	if(!audioDataObjects.length){
		return;
		//We don't have any audio files here.
	}
	
	var audioObjects=new Array();
	for(var aInd = 0; aInd < audioDataObjects.length;aInd++){
		//Find the img files that have a src (these hold our audio files)
		audioObjects[aInd] = $(audioDataObjects[aInd]).attr("src");
	}
	var audioID = "audioplayer";
	
	//Check if audioplayer exists
	var jwPlayerObject = jwplayer(audioID);
	var playerExists = false;
	if(jwPlayerObject == null){
		if(window.console){	console.log("no jwplayer audio player exists");}
	} else {
		playerExists = true;
	}

	var audioPlayer = $("#" + audioID);
	
	if(audioPlayer.length && playerExists){
		//Stop playing current audio
		var jwPlayerObject = jwplayer(audioID);
		
		try{
			jwPlayerObject.stop();
		} catch(e){
			if(window.console){
				console.log("problem with setupAudio: " + e);
			}
		}
		
		c.loadAudio(audioObjects);
	} else {
		
		//If no audio player exists, create one
		var audiohtml = c.createAudioString(audioObjects, audioID);
		//attach the player to main (so that it isn't erased before play triggers)
		$("#at_body_container").prepend("<div class='audioPlayer' id='"+audioID+"'><div>");
		
		$(audioDataObjects).parent().remove();
		$("#"+audioID).html(audiohtml);
	}	
}

/*********************************************
Function: resolveAudio
Indata: dataObject

*********************************************/
Content.prototype.resolveAudio = function(audioInObject){
	var c = this;
	var audioFileExists = false;
	
	//Create sound
	var audioDataObjects = $(audioInObject).find(".audio-data");
	if(!audioDataObjects.length){
		audioDataObjects = $(audioInObject).find(".audiofile");
	}
	var audioObjects=new Array();
	for(var aInd = 0; aInd < audioDataObjects.length;aInd++){
		audioObjects[aInd] = $(audioDataObjects[aInd]).attr("src");
	}
	
	//Create a unique ID
	var audioID = 'audio_'+tempID;
	
	//Create the audio string
	var audiohtml = c.createAudioString(audioObjects, audioID);
	
	//attach the player to main (so that it isn't erased before play triggers)
	$("#section-3").prepend("<div class='audioPlayer' id='"+audioID+"'><div>");
	$("#"+audioID).html(audiohtml);
	
	//Force playback
	/*playerStatusUpdate = setInterval(function(){
		
		if(jwplayer().getState() == "PLAYING"){
			clearInterval(playerStatusUpdate);
		}else{
			if(jwplayer().getState() != "PLAYING" && jwplayer().getPosition() < jwplayer().getDuration() ){
				
				jwplayer().play(true);
				clearInterval(playerStatusUpdate);
			}
		}
	},100);*/
	
	//Show the audio button
	//$("#soundBtn").css('visibility', 'visible');
};


/**
function playAudio
Spelar upp audio-ljud
*/
Content.prototype.playAudio = function(state,idstring){
	var c = this;
	var soundObject = $("object, audio, video");
	var check = false;
	//Tvinga till true för att fungera på iPad
	//var isValid = validSoundObject($(soundObject));
	var isValid = true;
	
	if(idstring == undefined){
		if(window.console){
			console.log(jwplayer().getState());
			console.log("Is valid: "+isValid);
			console.log("State: "+state);
		}
		
		if(jwplayer().getState() == "IDLE" && jwplayer().getPosition() > 0) return;
		
		
		
		if(isValid){
			if(state){
				try{
					//glob_audioID not necessary
					//jwplayer(glob_audioID).play(state);
					jwplayer().play(state);
				} catch(e){
					if(window.console){
						console.log("(1) Having problems in playAudio jwplayer id: " + glob_audioID);
					}
				}
			}else{
				try{
					//glob_audioID not necessary
					//jwplayer(glob_audioID).play();
					jwplayer().play(state);
				} catch(e){
					if(window.console){
						console.log("(2) Having problems in playAudio jwplayer id: " + glob_audioID);
					}
				}
			}
			check = true;
		}
	}else{
		if(window.console){
			console.log(jwplayer(idstring).getState());
			console.log("Is valid 2: "+isValid);
			console.log("State: "+state);
		}
		
		if(jwplayer(idstring).getState() == "IDLE" && jwplayer(idstring).getPosition() > 0) return;
		
		
		
		if(isValid){
			if(state){
				try{
					//glob_audioID not necessary
					//jwplayer(glob_audioID).play(state);
					jwplayer(idstring).play(state);
				} catch(e){
					if(window.console){
						console.log("(1) Having problems in playAudio jwplayer id: " + glob_audioID);
					}
				}
			}else{
				try{
					//glob_audioID not necessary
					//jwplayer(glob_audioID).play();
					jwplayer(idstring).play(state);
				} catch(e){
					if(window.console){
						console.log("(2) Having problems in playAudio jwplayer id: " + glob_audioID);
					}
				}
			}
			check = true;
		}
	}
	return check;
}


function validSoundObject(obj){
	var id;
	var rVal = false; //return value
	$(obj).each(function(i,v){
		id = $(this).attr("id");
		
		if($(this).attr("id").indexOf("audioID") != -1){
			
			rVal = true;
			return false;
		}
	});
	return rVal;
}

Content.prototype.setSound = function(){
	var c = this;

	//Unbind the button (remove any click stuff)
	$("#soundBtn").unbind();
	
	//Add click stuff
	c.soundButtonFunction();

	//set the images
	setSoundImages();
}

Content.prototype.soundButtonFunction = function(){
	$("#soundBtn").click(function(e){
		//Unbind the button immediately on click to prevent double clicks
		$("#soundBtn").unbind();
		//Toggle the sound
		
		toggleSound();
	});
}

/*Changed to start the audio if it isn't playing or pause if it is playing.
NO autostart! Only controls audio!*/
function toggleSound(){
	var c = content;
	var idString;
	
	//Get audio objects
	var audioObjects = $('.audioPlayer');
	
	if(audioObjects.length){
		//We have audioobjects
		$(audioObjects).each(function(){
			//Hopefully we only have one, but might as well do this for all of them.
			
			//Get the audio state
			var audioState = jwplayer().getState();
			if(audioState == undefined){
				var idString = $(this).find("div").filter(":first").attr("id");
				
				audioState = jwplayer(idString).getState();
				
			}
			
			
			
			if(audioState == "IDLE" || audioState == "PAUSED" ){
				c.playAudio(true,idString);
				setSoundImages('on');
			} else if( audioState == "PLAYING"){
				c.playAudio(false,idString);
				setSoundImages('off');
			}
		});
	}
	
	//Set toggle button again, Prevents double clicks
	c.soundButtonFunction();
	
}

Content.prototype.ToggleSpeaker = function(skip){
	var speakerState = getCookie("speakerState");
	
	if(jwplayer(audioID).getState() == "PAUSED"){
		setCookie("speakerState","off",360);
		$("#soundBtn").css("background-image","url(images/btn_sound_off.png)");
	}else{
		setCookie("speakerState","on",360);
		$("#soundBtn").css("background-image","url(images/btn_sound_on.png)");
	}
};

//Sets the images for the sound image, including mouse in and mouse out
//This should be called the first time the page loads as well as each toggle
function setSoundImages(){
	$("#soundBtn").unbind("mouseenter");
	$("#soundBtn").unbind("mouseleave");
	var off_normal = "url(images/btn_sound_off.png)";
	var off_hover  = "url(images/btn_sound_off_down.png)";
	var on_normal  = "url(images/btn_sound_on.png)";
	var on_hover   = "url(images/btn_sound_on_down.png)";
	
	var speakerState = getCookie("speakerState");
	if(speakerState == "off"){
		$("#soundBtn").css("background-image",off_normal);
		$("#soundBtn").mouseenter(function(e){
			$(this).css("background-image",off_hover);
		});
		$("#soundBtn").mouseleave(function(e){
			$(this).css("background-image",off_normal);
		});
	} else{
		$("#soundBtn").css("background-image",on_normal);
		$("#soundBtn").mouseenter(function(e){
			$(this).css("background-image",on_hover);
		});
		$("#soundBtn").mouseleave(function(e){
			$(this).css("background-image",on_normal);
		});
	}
}