/*
*  Copyright (c) 2020 Steve Seguin. All Rights Reserved.
*
*  Use of this source code is governed by the APGLv3 open-source license
*  that can be found in the LICENSE file in the root of the source
*  tree. Alternative licencing options can be made available on request.
*
*/

var VIS = vis;
var formSubmitting = true;
var activatedPreview = false;
var setFormSubmitting = function() { formSubmitting = true; };
window.onload = function() { // This just keeps people from killing the live stream accidentally. Also give me a headsup that the stream is ending
	window.addEventListener("beforeunload", function (e) {
		if (formSubmitting) {
			return undefined;
		}
		var confirmationMessage = 'Leaving the page now will terminate your stream ';
		(e || window.event).returnValue = confirmationMessage; //Gecko + IE
		return confirmationMessage; //Gecko + Webkit, Safari, Chrome etc.
	});
};

var lastTouchEnd = 0;
document.addEventListener('touchend', function (event) {
	var now = (new Date()).getTime();
	if (now - lastTouchEnd <= 300) {
		event.preventDefault();
	}
	lastTouchEnd = now;
}, false);

var interacted=false;
document.addEventListener('click', function (event) {
	if (interacted==false){
		interacted=true;
		history.pushState({}, '');
	}
});

window.onpopstate = function() {
	if (interacted){
		window.location.reload(true);
	}
}; 

var session = WebRTC.Media;
session.streamID = session.generateStreamID();

(function (w) {
    w.URLSearchParams = w.URLSearchParams || function (searchString) {
        var self = this;
        self.searchString = searchString;
        self.get = function (name) {
            var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(self.searchString);
            if (results == null) {
                return null;
            }
            else {
                return decodeURI(results[1]) || 0;
            }
        };
    };

})(window);
var urlParams = new URLSearchParams(window.location.search);

var isMobile = false;
if( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ) {
	isMobile=true;
}

if ((urlParams.has('permaid')) || (urlParams.has('push'))){
	var permaid  = urlParams.get('permaid') || urlParams.get('push');
	session.changeStreamID(permaid);
	document.getElementById("container-1").className = 'column columnfade advanced';
	document.getElementById("container-4").className = 'column columnfade advanced';
} 

if (urlParams.has('stereo')){
	log("STEREO ENABLED");
        session.stereo = true;
}

if (urlParams.has('nocursor')){
	session.nocursor = true;
	log("DISABLE CURSOR");
	var style = document.createElement('style');
	style.innerHTML = `
	video{
		margin: 0;
		padding: 0;
		overflow: hidden;
		cursor: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=), none;
		user-select: none;
	}
	`;
	document.head.appendChild(style);
}


if (urlParams.has('codec')){
	log("CODEC CHANGED");
    session.codec = urlParams.get('codec');
}

if (urlParams.has('ln')){  // checking if manual lanuage override enabled
	try {
		fetch("./translations/"+urlParams.get('ln')+'.json').then(function(response){
			if (response.status !== 200) {
				console.log('Looks like there was a problem. Status Code: ' +
				response.status);
				return;
			}
			response.json().then(function(data) {
				log(data);
				document.querySelectorAll('[data-translate]').forEach(function(ele){
					//log(ele.dataset.translate);
					//log(translations[ele.dataset.translate]);
					ele.innerHTML = data[ele.dataset.translate];
				});
			});
		}).catch(function(err){
			errorlog(err);
		});
	
	} catch (error){
		errorlog(error);
	}
} else {  // check if automatic language translation is available
	
	if (window.navigator.language.slice(0, 2) !== 'en'){  
		fetch("./translations/"+window.navigator.language.slice(0, 2)+'.json').then(function(response){
			if (response.status !== 200) {
				logerror('Language translation file not found.' + response.status);
				return;
			}
			response.json().then(function(data) {
				log(data);
				document.querySelectorAll('[data-translate]').forEach(function(ele){
					//log(ele.dataset.translate);
					//log(translations[ele.dataset.translate]);
					ele.innerHTML = data[ele.dataset.translate];
				});
			});
		}).catch(function(err){
			errorlog(err);
		});
	}
	
}

if (urlParams.has('bitrate')){
    session.bitrate = parseInt(urlParams.get('bitrate'));
	log("BITRATE ENABLED");
	log(session.bitrate);
}

if (urlParams.has('height')){
	session.height = parseInt(urlParams.get('height'));
}

if (urlParams.has('width')){
	session.width = parseInt(urlParams.get('width'));
}

if (urlParams.has('sink')){
	session.sink = urlParams.get('sink');
}


if (urlParams.has('secure')){
	session.security = true;
	setTimeout(function() {alert("Enhanced Security Mode Enabled.");}, 100);
}

if (urlParams.has('framerate')){
    session.framerate = parseInt(urlParams.get('framerate'));
	log("framerate Changed");
	log(session.framerate);
}

if (urlParams.has('sync')){
    session.sync = parseFloat(urlParams.get('sync'));
	log("sync Changed");
	log(session.sync);
}

if (urlParams.has('buffer')){
    session.buffer = parseFloat(urlParams.get('buffer'));
	log("buffer Changed");
	log(session.buffer);
}

			//var sync = session.sync | 0;
			//var buffer = session.buffer | 0;

if (urlParams.has('turn')){
	try {
		var turnstring = urlParams.get('turn').split(";");
		if (turnstring !== "false"){ // false disables the TURN server. Useful for debuggin
			var turn = {};
			turn.username = turnstring[0]; // myusername
			turn.credential = turnstring[1];  //mypassword
			turn.urls = [turnstring[2]]; //  ["turn:turn.obs.ninja:443"];
			session.configuration.iceServers.push(turn);
		}
	} catch (e){
		alert("TURN server parameters were wrong.");
		errorlog(e);
	}
} else {   // THIS IS ME being extra Generous. 
        var turn = {};
        turn.username = "steve";
        turn.credential = "justtesting";
        turn.urls = ["turn:turn.obs.ninja:443"]; // main TURN server. Do not abuse.  I pay out of pocket.
        session.configuration.iceServers.push(turn);
		
		var turn = {};
        turn.username = "steve";
        turn.credential = "justtesting";
        turn.urls = ["turn:turn2.obs.ninja:443"]; // main TURN server. Do not abuse.  I pay out of pocket.
        session.configuration.iceServers.push(turn);
}

function updateURL(param) {
	var para = param.split('=')[0];
	if (!(urlParams.has(para))){
		
		if (history.pushState){
			
			var arr = window.location.href.split('?');
			if (arr.length > 1 && arr[1] !== '') {
				var newurl = window.location.href + '&' +param;
			} else {
				var newurl = window.location.href + '?' +param;
			}
			
			
			window.history.pushState({path:newurl},'',newurl);
		}
	}
}

function jumptoroom(){
	var arr = window.location.href.split('?');
	if (arr.length > 1 && arr[1] !== '') {
		window.location+="&room="+document.getElementById("joinroomID").value;
	} else {
		window.location+="?room="+document.getElementById("joinroomID").value;
	}
}

function sleep(ms = 0){  
  return new Promise(r => setTimeout(r, ms));  // LOLz!
}

session.connect();
// session.volume = 100; // needs to be set after?

var url = window.location.pathname;
var filename = url.substring(url.lastIndexOf('/')+1);
if (filename.split(".").length==1){
	if (filename.length<2){
		filename=false;
	}
} else {
	filename = false;
}
if ( (urlParams.has('roomid')) || (filename) || (urlParams.has('room')) ){
	if (filename){
		var roomid = filename;
	} else if (urlParams.has('room')){
		var roomid  = urlParams.get('room');
	} else {
		var roomid  = urlParams.get('roomid');
	}
	roomid = encodeURIComponent(roomid);
	session.roomid = roomid;
	document.getElementById("info").innerHTML = "";
	document.getElementById("info").style.color="#CCC";
	document.getElementById("videoname1").value = roomid;
	document.getElementById("dirroomid").innerHTML = roomid;
	document.getElementById("roomid").innerHTML = roomid;
	document.getElementById("container-1").className = 'column columnfade advanced';
	document.getElementById("container-4").className = 'column columnfade advanced';
	document.getElementById("mainmenu").style.alignSelf= "center";
	document.getElementById("header").style.alignSelf= "center";
	if (isMobile){
		document.getElementById("container-2").className = 'column columnfade advanced'; // Hide screen share on mobile
		document.getElementById("head1").innerHTML = '';
	} else {	
		document.getElementById("head1").innerHTML = '<br /><font style="color:#CCC">Please select an option to join.</font>';
	}
	
	document.getElementById("add_camera").innerHTML = "Join Room with Camera";
	document.getElementById("add_screen").innerHTML = "Screenshare with Room";
	document.getElementById("head3").className = 'advanced';
	if (urlParams.has('scene')){
		session.scene = urlParams.get('scene');
		document.getElementById("container-4").className = 'column columnfade';
		document.getElementById("container-3").className = 'column columnfade';
		document.getElementById("container-2").className = 'column columnfade';
		document.getElementById("container-1").className = 'column columnfade';
		document.getElementById("header").className = 'advanced';
		document.getElementById("info").className = 'advanced';
		document.getElementById("header").className = 'advanced';
		document.getElementById("head1").className = 'advanced';
		document.getElementById("head2").className = 'advanced';
		document.getElementById("head3").className = 'advanced';
		document.getElementById("mainmenu").style.display = "none";
		window.addEventListener("resize", updateMixer);
		joinRoom(roomid); // this is a scene, so we want high resolutions
	} 
}	



function checkConnection(){
	if (document.getElementById("qos")){
		if (session.ws.readyState === WebSocket.OPEN) {
			document.getElementById("qos").style.color = "white";
		} else {
			document.getElementById("qos").style.color = "red";
		}
	}
}
setInterval(function(){checkConnection();},5000);


function updateStats(){
	log('resolution found');
	//log(document.getElementById('previewWebcam').videoWidth|0);
	//log(document.getElementById('previewWebcam').videoHeight|0);
	document.getElementById('previewWebcam').srcObject.getVideoTracks().forEach(
		function(track) {
			log(track.getSettings());
			log(track.getSettings().frameRate);
			//log(track.getSettings().frameRate);
			document.getElementById("webcamstats").innerHTML = "Current Video Settings: "+(track.getSettings().width||0) +"x"+(track.getSettings().height||0)+"@"+(parseInt(track.getSettings().frameRate*10)/10)+"fps";
		}
	);
}

function toggleMute(){ // TODO: I need to have this be MUTE, toggle, with volume not touched.
	
	if (session.muted==false){
		session.muted = true;
		document.getElementById("mutetoggle").className="fa fa-microphone-slash my-float";
		document.getElementById("mutebutton").className="float";
		session.streamSrc.getAudioTracks().forEach((track) => {
		  track.enabled = false;
		});
		
	} else{
		session.muted=false;
		
		document.getElementById("mutetoggle").className="fa fa-microphone my-float";
		document.getElementById("mutebutton").className="float3";
		
		
		session.streamSrc.getAudioTracks().forEach((track) => {
		  track.enabled = true;
		});
	}
	
	
}
////////////////////////////

function directEnable(ele){ // A directing room only is controlled by the Director, with the exception of MUTE.
        log("enable");
	if (ele.parentNode.parentNode.dataset.enable==1){
		ele.parentNode.parentNode.dataset.enable = 0;
		ele.className = "";
		ele.innerHTML = "Add to Group Scene";
		ele.parentNode.parentNode.style.backgroundColor = "#E3E4FF";
	} else {
		ele.parentNode.parentNode.style.backgroundColor = "#AFA";
		ele.parentNode.parentNode.dataset.enable = 1;
		ele.className = "pressed";
		ele.innerHTML = "Remove from Group Scene";
	}
        var msg = {};
        msg.request = "sendroom";
        msg.roomid = session.roomid;
        msg.director = "1"; // scene
        msg.action = "display";
        msg.value =  ele.parentNode.parentNode.dataset.enable;
        msg.target = ele.parentNode.parentNode.dataset.UUID;
        session.sendMsg(msg); // send to everyone in the room, so they know if they are on air or not.
}


function directMute(ele){ // A directing room only is controlled by the Director, with the exception of MUTE.
	log("mute");
	if (ele.parentNode.parentNode.dataset.mute==0){
                ele.parentNode.parentNode.dataset.mute = 1;
                ele.className = "";
		ele.innerHTML = "Mute";
        } else {
                ele.parentNode.parentNode.dataset.mute = 0;
                ele.className = "pressed";
		ele.innerHTML = "Unmute";
        }
	var msg = {};
	msg.request = "sendroom";
	msg.roomid = session.roomid;
	msg.director = "1";
	msg.action = "mute";
	msg.value =  ele.parentNode.parentNode.dataset.mute;
	msg.target = ele.parentNode.parentNode.dataset.UUID;
	session.sendMsg(msg); // send to everyone in the room, so they know if they are on air or not.
}


function directVolume(ele){ // A directing room only is controlled by the Director, with the exception of MUTE.
	log("volume");
	var msg = {};
	msg.request = "sendroom";
	msg.roomid = session.roomid;
	msg.director = "1";
	msg.action = "volume";
	msg.target = ele.parentNode.parentNode.dataset.UUID; // i want to focus on the STREAM ID, not the UUID...
	msg.value = ele.value;
	
	session.sendMsg(msg); // send to everyone in the room, so they know if they are on air or not.
}


function chatRoom(chatmessage="hi"){ // A directing room only is controlled by the Director, with the exception of MUTE.
	log("Chat message");
	var msg = {};
	msg.request = "sendroom";
	msg.roomid = session.roomid;
	msg.action = "chat";
	msg.value = chatmessage;
	session.sendMsg(msg); // send to everyone in the room, so they know if they are on air or not.
}


function changeTitle(aTitle="Untitled"){
	log("changing title; if connected at least");
	session.changeTitle(aTitle);
}

var activatedStream = false;
function publishScreen(){
	if( activatedStream == true){return;}
	activatedStream = true;
	setTimeout(function(){activatedStream=false;},1000);

	var title = "ScreenShare";//document.getElementById("videoname2").value;

	formSubmitting = false;

	var width = {ideal: 1280};
	var height = {ideal: 720};

	if (session.width){
		width = {ideal: session.width};
	}
	if (session.height){
		height = {ideal: session.height};
	}

	var constraints = window.constraints = {
		audio: {echoCancellation: false, autoGainControl: false, noiseSuppression:false }, // I hope this doesn't break things..
		video: {width: width, height: height, cursor: "never", mediaSource: "browser"}
	};

	if (session.framerate){
		constraints.video.frameRate = {exact: session.framerate};
	}	
	
	var audioSelect = document.querySelector('select#audioSourceScreenshare');
	
	session.publishScreen(constraints, title, audioSelect);
	log("streamID is: "+session.streamID);

	document.getElementById("mutebutton").className="float3";
	document.getElementById("helpbutton").className="float2";

	document.getElementById("head1").className = 'advanced';
	document.getElementById("head2").className = 'advanced';

}
function publishWebcam(){
	if( activatedStream == true){return;}
	activatedStream = true;
	log("PRESSED PUBLISH WEBCAM!!");
	var title = "Webcam"; // document.getElementById("videoname3").value;
	var ele = document.getElementById("previewWebcam");

	var stream = ele.srcObject;


	ele.parentNode.removeChild(ele);

	formSubmitting = false;
	window.scrollTo(0, 0); // iOS has a nasty habit of overriding the CSS when changing camaera selections, so this addresses that.

	if (session.roomid){
		console.log("ROOM ID ENABLED");
		window.addEventListener("resize", updateMixer);
		joinRoom(session.roomid);
		document.getElementById("head3").className = 'advanced';
	} else {
		document.getElementById("head3").className = '';
	}
	updateURL("push="+session.streamID);
	session.publishStream(stream, title);
	log("streamID is: "+session.streamID);
	document.getElementById("head1").className = 'advanced';
	document.getElementById("head2").className = 'advanced';

	document.getElementById("mutebutton").className="float3";
	document.getElementById("helpbutton").className="float2";


}

function joinRoom(roomname, maxbitrate=false){
	roomname = roomname.replace(/[^0-9a-z]/gi, '');
		if (roomname.length){
			log("Join room",roomname);
			log(roomname);
			session.joinRoom(roomname,maxbitrate).then(function(response){  // callback from server; we've joined the room
				log("Members in Room");
				log(response);
				for (var i in response){
					if ("UUID" in response[i]){
						if ("streamID" in response[i]){
							if (response[i].UUID in session.pcs){
								log("RTC already connected"); /// lets just say instead of Stream, we have 
							} else {
								//var title = "";                            // TODO: Assign labels 
								//if ("title" in response[i]){
									//	title = response[i]["title"];
									//}
									
								if ((urlParams.has('streamid')) || (urlParams.has('view'))){
									play(response[i].streamID);
								} else {
									session.watchStream(response[i].streamID); // How do I make sure they aren't requesting the same movie twice as a race condition?
								}
							}
						}
					}
				}

			},function(error){return {};});
		} else {
			errorlog("Room name not long enough or contained all bad characaters");
		}	
}


function createRoom(){

	var roomname = document.getElementById("videoname1").value;
	
	log(roomname);
	if (roomname.length==0){
		alert("Please enter a room name before continuing");
		return;
	}

	var gridlayout = document.getElementById("gridlayout");
	gridlayout.classList.add("directorsgrid");

	session.roomid = roomname;
	formSubmitting = false;

	var m = document.getElementById("mainmenu");
	m.remove();

	document.getElementById("head1").className = 'advanced';
	document.getElementById("head2").className = 'advanced';
	document.getElementById("head3").className = 'advanced';
	document.getElementById("head4").className = '';
	
	document.getElementById("dirroomid").innerHTML =  roomname;
	document.getElementById("roomid").innerHTML = roomname;


	//document.getElementById("mutebutton").className="float3";
	//document.getElementById("helpbutton").className="float2";
	session.director = true;
	document.getElementById("reshare").parentNode.removeChild(document.getElementById("reshare"));
	
	gridlayout.innerHTML = "<br /><div style='display:inline-block'><font style='font-size:130%;color:white;'></font><input  onclick='popupMessage(event);copyFunction(this)' onmousedown='copyFunction(this)' style='cursor:grab;font-weight:bold;background-color:#78F; width:400px; font-size:100%; padding:10px; border:2px solid black; margin:5px;'  class='task' value='https://"+location.host+location.pathname+"?room="+session.roomid+"' /><font style='font-size:130%;color:white;'><i class='fa fa-video-camera' style='font-size:2em;'  aria-hidden='true'></i> - Invites users to join the group and broadcast their feed to it. These users will see every feed, so a limit of 4 is recommended.</font></div>";
	
	gridlayout.innerHTML += "<br /><font style='font-size:130%;color:white;'></font><input class='task' onclick='popupMessage(event);copyFunction(this)' onmousedown='copyFunction(this)' style='cursor:grab;font-weight:bold;background-color:#F45;width:400px;font-size:100%;padding:10px;border:2px solid black;margin:5px;' value='https://"+location.host+location.pathname+"?room="+session.roomid+"&view' /><font style='font-size:130%;color:white;'><i class='fa fa-video-camera' style='font-size:2em;'  aria-hidden='true'></i> - Link to Invite users to broadcast their feeds to the group. These users will not see or hear any feed from the group.</font><br />";
	
	
	gridlayout.innerHTML += "<font style='font-size:130%;color:white'></font><input class='task' onmousedown='copyFunction(this)' data-drag='1' onclick='popupMessage(event);copyFunction(this)' style='cursor:grab;font-weight:bold;background-color:#5F4;width:400px;font-size:100%;padding:10px;border:2px solid black;margin:5px;' value='https://"+location.host+location.pathname+"?scene=1&room="+session.roomid+"' /><font style='font-size:130%;color:white'><i class='fa fa-th-large' style='font-size:2em;' aria-hidden='true'></i> - This is an OBS Browser Source link that contains the group chat in just a single scene. Videos must be added to Group Scene.</font><br />";
	
	gridlayout.innerHTML += '<button style="margin:10px;padding:5px" onclick="toggle(document.getElementById(\'roomnotes2\'),this);">Click Here for a quick overview and help</button>';
	
	gridlayout.innerHTML += "<div id='roomnotes2' style='display:none;padding:0 0 0 10px;' ><br />\
	<font style='color:#CCC;'>Welcome. This is the control-room for the group-chat. There are different things you can use this room for:<br /><br />\
	<li>You can host a small-group chat here. Share the blue link to invite guests who will join the chat automatically.</li>\
	<li>You can use it to invite and manage up to 20 remote camera streams. Use the red-colored add camera link to bring in such streams.</li>\
	<li>You can add and remote control individual streams loaded into OBS. The required solo-links to add to OBS will appear under videos as they load.</li>\
	<li>You can use the auto-mixing Group Scene, the green link, to let OBS.Ninja auto arrange multiple videos for you in OBS.</li>\
	<li>You can use it to record video streams independently</li>\
	<br />\
	As guests join, their videos will appear below. You can bring their video streams into OBS as solo-scenes or you can add them to the Group Scene.\
	<br />The Group Scene auto-mixes videos that have been added to the group scene. Please note that the Auto-Mixer requires guests be manually added to it for them to appear in it; they are not added automatically.<br /><Br />Apple mobile devices, such as iPhones and iPads, do not support Group Chat. This is a hardware constraint.<br /><br /></font></div><hr />";
	
	gridlayout.innerHTML += "<div id='deleteme'><br /><br /><center>\
	<div style='display:inline-block;width:300px;height:350px;border:2px solid white;background-color:#999;margin:40px;'><br /><br />GUEST SLOT #1<br /><br />(A video will appear here when a guest joins)<br /><br /><i class='fa fa-user ' style='font-size:8em;' aria-hidden='true'></i><br /><br />A Solo-Link for OBS will appear here.</div>\
	<div style='display:inline-block;width:300px;height:350px;border:2px solid white;background-color:#999;margin:40px;'><br /><br />GUEST SLOT #2<br /><br />(A video will appear here when a guest joins)<br /><br /><i class='fa fa-user  ' style='font-size:8em;' aria-hidden='true'></i><br /><br />A Solo Link for OBS will appear here</div>\
	<div style='display:inline-block;width:300px;height:350px;border:2px solid white;background-color:#999;margin:40px;'><br /><br />GUEST SLOT #3<br /><br />(A video will appear here when a guest joins)<br /><br /><i class='fa fa-user ' style='font-size:8em;'aria-hidden='true'></i><br /><br />A Solo Link for OBS will appear here</div>\
	<div style='display:inline-block;width:300px;height:350px;border:2px solid white;background-color:#999;margin:40px;'><br /><br />GUEST SLOT #4<br /><br />(A video will appear here when a guest joins)<br /><br /><i class='fa fa-user ' style='font-size:8em;'aria-hidden='true'></i><br /><br />A Solo Link for OBS will appear here</div></center></div>";
	joinRoom(roomname);  // setting this to limit bitrate may break things.

}

function toggle(ele, tog=false) {
  var x = ele;
  if (x.style.display === "none") {
    x.style.display = "block";
  } else {
    x.style.display = "none";
  }
  if (tog){
	  tog.style.display = "none";
  }
}

function enumerateDevices() {
	
	log("enumerated start");
	
	if (typeof navigator.enumerateDevices === "function") {
		errorlog("enumerated failed 1");
		return navigator.enumerateDevices();
	}
	else if (typeof navigator.mediaDevices === "object" &&
		typeof navigator.mediaDevices.enumerateDevices === "function") {
			errorlog("enumerated failed 2");
		return navigator.mediaDevices.enumerateDevices();
	} else {
		return new Promise((resolve, reject) => {
			try {
				if (window.MediaStreamTrack == null || window.MediaStreamTrack.getSources == null) {
					throw new Error();
				}
				window.MediaStreamTrack.getSources((devices) => {
					resolve(devices
						.filter(device => {
							return device.kind.toLowerCase() === "video" || device.kind.toLowerCase() === "videoinput";
						})
						.map(device => {
							return {
								deviceId: device.deviceId != null ? device.deviceId : "",
								groupId: device.groupId,
								kind: "videoinput",
								label: device.label,
								toJSON: /* istanbul ignore next */ function () {
									return this;
								}
							};
						}));
				});
			}
			catch (e) {
				errorlog(e);
			}
		});
	}
}

function requestAudioStream(){
		try {
		  return navigator.mediaDevices.getUserMedia({audio:true, video:false }).then(function(stream1){ // Apple needs thi to happen before I can access EnumerateDevices. 
				log("get media sources; request audio stream");
				  return enumerateDevices().then(function(deviceInfos){
						stream1.getTracks().forEach(function(track) { // We don't want to keep it without audio; so we are going to try to add audio now.
							track.stop(); // I need to do this after the enumeration step, else it breaks firefox's labels
						});
						console.log("updating audio");
						const audioInputSelect = document.querySelector('select#audioSourceScreenshare');
						audioInputSelect.remove(1);
						audioInputSelect.removeAttribute("onchange");
						var temp = {};
						for (let i = 0; i !== deviceInfos.length; ++i) {
							if (deviceInfos[i].kind === 'audioinput') {
								if (deviceInfos[i].groupId in temp){
									deviceInfos[i] = null;
								} else {
									temp[deviceInfos[i].groupId]=true;
								}
							}
						}							
						
						for (let i = 0; i !== deviceInfos.length; ++i) {
								const deviceInfo = deviceInfos[i];
								if (deviceInfo==null){continue;}
								const option = document.createElement('option');
								option.value = deviceInfo.deviceId;
								if (deviceInfo.kind === 'audioinput') {
									option.text = deviceInfo.label || `microphone ${audioInputSelect.length + 1}`;
									audioInputSelect.appendChild(option);
								} else {
									log('Some other kind of source/device: ', deviceInfo);
								}
						}
				  });
		  });
	   } catch (e){
		   if (window.isSecureContext) {
			   alert("An error has occured when trying to access the webcam. The reason is not known.");
		   } else {
			alert("Error acessing webcam.\n\nWebsite is loaded in an insecure context.\n\nPlease see: https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia");
		   }
	   }
	}

function gotDevices(deviceInfos) { // https://github.com/webrtc/samples/blob/gh-pages/src/content/devices/input-output/js/main.js#L19

	log("got devices!");
	log(deviceInfos);
	try{
		const audioInputSelect = document.querySelector('#audioSource');
		const videoSelect = document.querySelector('select#videoSource');
		const selectors = [ videoSelect];

		// Handles being called several times to update labels. Preserve values.
		const values = selectors.map(select => select.value);
		selectors.forEach(select => {
			while (select.firstChild) {
				select.removeChild(select.firstChild);
			}
		});
		var temp = {};
		for (let i = 0; i !== deviceInfos.length; ++i) {
			if (deviceInfos[i].kind === 'audioinput') {
				if (deviceInfos[i].groupId in temp){
					deviceInfos[i] = null;
				} else {
					temp[deviceInfos[i].groupId]=true;
				}
			}
		}
		var counter = 1;
		for (let i = 0; i !== deviceInfos.length; ++i) {
			const deviceInfo = deviceInfos[i];
			if (deviceInfo==null){continue;}
			
			if (deviceInfo.kind === 'audioinput') {
				const option = document.createElement('input');
				option.type="checkbox";
				counter++;
				const listele = document.createElement('li');
				if (counter==2){
					option.checked=true;
					listele.style.display="block";
					option.style.display="none";
					document.getElementById("multiselect1").checked = false;
					document.getElementById("multiselect1").parentNode.style.display="none";
				} else {
					listele.style.display="none";
				}
				
				option.value = deviceInfo.deviceId;
				option.name = "multiselect"+counter;
				option.id = "multiselect"+counter;
				const label = document.createElement('label');
				label.for = option.name;
				
				label.innerHTML = " " + (deviceInfo.label || `microphone ${audioInputSelect.length + 1}`);
				
				listele.appendChild(option);
				listele.appendChild(label);
				audioInputSelect.appendChild(listele);
				
				
				document.getElementById("multiselect1").onchange = function(event){  // make sure to clear 'no audio option' if anything else is selected
					if (!(document.getElementById("multiselect1").checked)){
						document.getElementById("multiselect1").checked= true;
					}
				};
				
				option.onchange = function(event){  // make sure to clear 'no audio option' if anything else is selected
					document.getElementById("multiselect1").checked= false;
				};
		
			} else if (deviceInfo.kind === 'videoinput') {
				const option = document.createElement('option');
				option.value = deviceInfo.deviceId;
				option.text = deviceInfo.label || `camera ${videoSelect.length + 1}`;
				videoSelect.appendChild(option);
			} else {
				log('Some other kind of source/device: ', deviceInfo);
			}
		}
		
		
		//var option = document.createElement('option');
		//option.text = "Disable Audio";
		//option.value = "ZZZ";
		//audioInputSelect.appendChild(option); // NO AUDIO OPTION
		
		option = document.createElement('option');
		option.text = "Disable Video";
		option.value = "ZZZ";
		videoSelect.appendChild(option); // NO AUDIO OPTION
		
		selectors.forEach((select, selectorIndex) => {
			if (Array.prototype.slice.call(select.childNodes).some(n => n.value === values[selectorIndex])) {
				select.value = values[selectorIndex];
			}
		});
		
		//audioInputSelect.selectedIndex  = 0;
	} catch (e){
		errorlog(e);
	}
}

function handleError(error) {
	errorlog(error);
}

function getUserMediaVideoParams(resolutionFallbackLevel, isSafariBrowser) {
	switch (resolutionFallbackLevel) {
		case 0:
			if (isSafariBrowser) {
				return {
						width: { min: 360, ideal: 1920, max: 1920 },
						height: { min: 360, ideal: 1080, max: 1080 }
					};
			} else {
				return {
					width: { min: 720, ideal: 1920, max: 1920 },
					height: { min: 720, ideal: 1080, max: 1920 }
				};
			}
		case 1:
			if (isSafariBrowser) {
				return {
						width: { min: 360, ideal: 1280, max: 1280 },
						height: { min: 360, ideal: 720, max: 720 }
					};
			} else {
				return {
					width: { min: 720, ideal: 1280, max: 1280 },
					height: { min: 720, ideal: 720, max: 1280 }
				};
			}
		case 2:
			if (isSafariBrowser) {
				return {
					width: { min: 360, ideal: 1280, max: 1440 },
				};
			}
			else {
				return {
					width: { min: 360, ideal: 1280, max: 1440 },
				};
			}
		case 3:
			if (isSafariBrowser) {
				return {
						width: { min: 640 },
						height: { min: 360 }
				};
			} else {
				return {
					width: { min: 240, ideal: 640, max: 1280 },
					height: { min: 240, ideal: 360, max: 1280 }
				};
			}
		
		case 4:
			if (isSafariBrowser) {
				return {
					height: { min: 360, ideal: 720, max: 960 }
				};
			}
			else {
				return {
					height: { min: 360, ideal: 960, max: 960 }
				};
			}
		case 5:
			if (isSafariBrowser) {
				return {
					width: { min: 360, ideal: 640, max: 1440 },
					height: { min: 360, ideal: 360, max: 720 }
				};
			}
			else {
				return {
					width: { min: 360, ideal: 640, max: 3840 },
					height: { min: 360, ideal: 360, max: 2160 }
				};
			}
		case 6:
			if (isSafariBrowser) {
				return {}; // iphone users probably don't need to wait any longer, so let them just get to it
			}
			else {
				return {width: {min:360,max:1920}, 
						height: {min:360, max:1920}}; // same as default, but I didn't want to mess with framerates until I gave it all a try first
			}
		case 7:
			return { // If the camera is recording in low-light, it may have a low framerate. It coudl also be recording at a very high resolution.
				width: { min: 360, ideal: 640 },
				height: { min: 360, ideal: 360 },
				frameRate: 10
			};

		case 8:
			return {width: {min:360,max:1920}, height: {min:360, max:1920}}; // same as default, but I didn't want to mess with framerates until I gave it all a try first
		case 9:
			return {frameRate: 0 };  // Some Samsung Devices report they can only support a framerate of 0.
		default:
			return {}; 
	}
}

function grabVideo(quality=0, audioEnable=false){
	if( activatedPreview == true){log("activeated preview return 2");return;}
	activatedPreview = true;
	log(quality);
	log("trying with quality:");

	
	var videoSelect = document.querySelector('select#videoSource');
	var iOS = !!navigator.platform && /iPad|iPhone|iPod/.test(navigator.platform);
	var iPad = (navigator.maxTouchPoints && navigator.maxTouchPoints > 2 && /MacIntel/.test(navigator.platform));

	if (iOS){  // iOS will not work correctly at 1080p; likely a h264 codec issue.
		if (quality==0){
			quality=1;
		}
	} else if (iPad){
		if (quality==0){
			quality=1;
		}
	}
	
	
	var audio = false;
	var streams = [];
	if ((videoSelect.value == "ZZZ") || (audioEnable==true)){  // if there is no video, or if manually set to audio ready, then do this step.
		
		var audioSelect = document.querySelector('#audioSource').querySelectorAll("input"); 
		var audioList = [];
		
		for (var i=0; i<audioSelect.length;i++){
			if (audioSelect[i].value=="ZZZ"){
				continue;
			}
			if (audioSelect[i].checked){
				audioList.push(audioSelect[i]);
			}
		}
		
		for (var i=1; i<audioList.length;i++){
			var constraint = {audio: {deviceId: {exact: audioList[i].value}}};
			if (session.stereo){
				constraint.audio.echoCancellation = false;
				constraint.audio.autoGainControl = false;
				constraint.audio.noiseSuppression = false;
			}
			navigator.mediaDevices.getUserMedia(constraint).then(function (stream2){
				streams.push(stream2);
			}).catch(errorlog);
		} 
		
		if (audioList.length){
			audio = {deviceId: {exact: audioList[0].value}};
			if (session.stereo){
				audio.echoCancellation = false;
				audio.autoGainControl = false;
				audio.noiseSuppression = false;
			}
		} 
	}
	
	if (videoSelect.value == "ZZZ"){  // without video. Nice and quick
		var constraints = {
			audio: audio,
			video: false
		};
		navigator.mediaDevices.getUserMedia(constraints).then(function(stream){
			log("adding additional audio tracks");
			for (var i=0; i<streams.length;i++){
				streams[i].getAudioTracks().forEach(function(track){
					stream.addTrack(track);
					log(track);
				});
			}
			streams = null;
			document.getElementById('gowebcam').innerHTML="CLICK HERE WHEN READY";
			document.getElementById('previewWebcam').srcObject = stream; // set the preview window and run with it
		}).catch(function(e){
			errorlog(e);
			alert("Error: Media stream creation failed.");
		});
	
	} else {       // with video
		var constraints = {  
			audio: audio,
			video: getUserMediaVideoParams(quality, iOS)
		};
		constraints.video.deviceId = { exact: videoSelect.value };
		if (session.width){
			constraints.video.width = {exact: session.width};
		}
		if (session.height){
			constraints.video.height = {exact: session.height};
		}
		if (session.framerate){
			constraints.video.frameRate = {exact: session.framerate};
		} else if (session.maxframerate){
			constraints.video.frameRate = {max: session.maxframerate};
		}
	
		log(constraints);

		setTimeout(()=>{
			try {

				log("Trying Constraints");
				var oldstream= document.getElementById('previewWebcam').srcObject;
				if (oldstream){
					oldstream.getTracks().forEach(function(track) {
						track.stop();
					});
				}
			} catch(e){
				errorlog(e);
			}
			navigator.mediaDevices.getUserMedia(constraints).then(function(stream){
				if (audioEnable == false){
					stream.getTracks().forEach(function(track) { // We don't want to keep it without audio; so we are going to try to add audio now.
							track.stop();
					});
					log("GOT IT BUT WITH NO AUDIO");
					activatedPreview = false;
					grabVideo(quality,true);
				} else {
					log("adding tracks");
					for (var i=0; i<streams.length;i++){
						streams[i].getAudioTracks().forEach(function(track){
							stream.addTrack(track);
							log(track);
						});
					}
					streams = null;
					document.getElementById('gowebcam').innerHTML="CLICK HERE WHEN READY";
					document.getElementById('previewWebcam').srcObject = stream; // set the preview window and run with it
					
					// Once crbug.com/711524 is fixed, we won't need to wait anymore. This is
					// currently needed because capabilities can only be retrieved after the
					// device starts streaming. This happens after and asynchronously w.r.t.
					// getUserMedia() returns.
					setTimeout(function(){dragElement(document.getElementById('previewWebcam'));},1000);  // focus
					
					log("DONE - found stream");
					
				}
			}).catch(function(e){
				activatedPreview = false;
				errorlog(e);
				if (e.name === "OverconstrainedError"){
					errorlog(e.message);
					log("Resolution didn't work");
				} else if (e.name === "NotReadableError"){
					if (iOS){
						alert("An error occured. Upgrading to at least iOS 13.4 should fix this glitch from happening again");
					} else {
						alert("Error Listing Media Devices.\n\nThe default Camera may already be in use with another app. Typically webcams can only be accessed by one program at a time.\n\nThe selected device may also not be supported.");
					}
					document.getElementById('gowebcam').innerHTML="Problem with Camera";
					activatedPreview=true;
					return;
				} else if (e.name === "NavigatorUserMediaError"){
					document.getElementById('gowebcam').innerHTML="Problem with Camera";
					alert("Unknown error: 'NavigatorUserMediaError'"); 
					return;
				} else {
					errorlog("An unknown camera error occured");
				}
				if (quality<=9){
					grabVideo(quality+1);
				} else {
					errorlog("********Camera failed to work");
					activatedPreview=true;
					document.getElementById('gowebcam').innerHTML="Problem with Camera";
					alert("Camera failed to load. \n\nPlease make sure it is not already in use by another application.\n\nPlease make sure you have accepted the camera permissions.");
				}
			});
		},0);
	}
}



function enterPressed(event, callback){
  // Number 13 is the "Enter" key on the keyboard
  if (event.keyCode === 13){
    // Cancel the default action, if needed
    event.preventDefault();
    // Trigger the button element with a click
    callback();
  }
}


function dragElement(elmnt) {
	var  millis = Date.now();
	log(elmnt);
	try {
		var stream = elmnt.srcObject;
		log(stream);
		var track0 = stream.getVideoTracks();
		log(track0);
		track0 = track0[0];
		var capabilities = track0.getCapabilities();
		var settings = track0.getSettings();

		var input = document.getElementById("zoomSlider");
		
		// Check whether zoom is supported or not. 
		if (!('zoom' in capabilities)) {
			log('Zoom is not supported by ' + track0.label);
			return;
		}

		// Map zoom to a slider element.
		input.min = capabilities.zoom.min;
		input.max = capabilities.zoom.max;
		input.step = capabilities.zoom.step;
		input.value = settings.zoom;
		
		
	} catch(e){errorlog(e);return;}
	
	
	
	log("drag on");
    elmnt.onmousedown = dragMouseDown;
	elmnt.onclick = onvideoclick;
	
	elmnt.ontouchstart = function (e) {
		dragMouseDown(e);
	};
	
	var pos0 = 1;
	function onvideoclick(e){
		
		log("click",e);
		//elmnt.controls = false;
		e = e || window.event;
		e.preventDefault();
		return false;
	}
	
  function dragMouseDown(e) {
	log(e);
	elmnt.controls = false;
    e = e || window.event;
    e.preventDefault();
	
	pos0 = input.value;
	if(e.type == 'touchstart' || e.type == 'touchmove' || e.type == 'touchend' || e.type == 'touchcancel'){
		var touch = e.touches[0] ||e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
		pos3 = touch.clientX;
		pos4 = touch.clientY;
	} else if (e.type == 'mousedown' || e.type == 'mouseup' || e.type == 'mousemove' || e.type == 'mouseover'|| e.type=='mouseout' || e.type=='mouseenter' || e.type=='mouseleave') {
		pos3 = e.clientX;
		pos4 = e.clientY;
	}

	document.ontouchmove = elementDrag;
	
    document.onmouseup = closeDragElement;
    // call a function whenever the cursor moves:
    document.onmousemove = elementDrag;
  }

  function elementDrag(e) {
    e = e || window.event;
    e.preventDefault();
    // calculate the new cursor position:
	
	if ( Date.now() - millis < 50){
		return;
	}
	millis = Date.now();
	
	if(e.type == 'touchstart' || e.type == 'touchmove' || e.type == 'touchend' || e.type == 'touchcancel'){
		var touch = e.touches[0] ||e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
		pos1 =  touch.clientX;
		pos2 =  touch.clientY;
	} else if (e.type == 'mousedown' || e.type == 'mouseup' || e.type == 'mousemove' || e.type == 'mouseover'|| e.type=='mouseout' || e.type=='mouseenter' || e.type=='mouseleave') {
		pos1 =  e.clientX;
		pos2 =   e.clientY;
	}
	
	var zoom =  parseFloat((pos4-pos2)*2/elmnt.offsetHeight);
	
	if (zoom>1){zoom =1.0;}
	else if (zoom<-1){zoom=-1.0;}
	//zoom=(zoom+1)/2;
		
	input.value = zoom*(input.max - input.min) + input.min;
	
	if (input.value !=  pos0){
		track0.applyConstraints({advanced: [ {zoom: input.value} ]});
		//document.getElementById("infof").innerHTML = input.value + " " + pos0;
	}
	//log(pos2 +" , "+ elmnt.offsetHeight  +" , "+ parseFloat((3*pos2)/elmnt.offsetHeight) );
	

  }

  function closeDragElement(e) {
	  elmnt.controls=true;
    /* stop moving when mouse button is released:*/
    document.onmouseup = null;
    document.onmousemove = null;
	document.ontouchmove = null;
  }
}


//Make the DIV element draggagle:
//dragElement(document.getElementById("previewWebcam"));




  
  
function setupWebcamSelection(){
	log("setup webcam");
	try {
		return enumerateDevices().then(gotDevices).then(function(){
			log("enumerated");
			if (parseInt(document.getElementById("webcamquality").elements.namedItem("resolution").value)==3){
				session.maxframerate  = 30;
			} else {
					session.maxframerate = false;
			}
			
			var audioSelect = document.querySelector('#audioSource');
			var videoSelect = document.querySelector('select#videoSource');
			
			audioSelect.onchange = function(){
				document.getElementById('gowebcam').innerHTML="Waiting for Camera to load";
				log("AUDIO source CHANGED");
				activatedPreview=false;
				grabVideo(parseInt(document.getElementById("webcamquality").elements.namedItem("resolution").value));
			};
			videoSelect.onchange = function(){
				document.getElementById('gowebcam').innerHTML="Waiting for Camera to load";
				log("video source changed");
				activatedPreview=false;
				grabVideo(parseInt(document.getElementById("webcamquality").elements.namedItem("resolution").value));
			};
			document.getElementById("webcamquality").onchange = function(){
				document.getElementById('gowebcam').innerHTML="Waiting for Camera to load";
				log("AUDIO source CHANGED");
				activatedPreview=false;
				if (parseInt(document.getElementById("webcamquality").elements.namedItem("resolution").value)==3){
					session.maxframerate  = 30;
				} else {
					session.maxframerate = false;
				}
				grabVideo(parseInt(document.getElementById("webcamquality").elements.namedItem("resolution").value));
			};

			activatedPreview = false;
			grabVideo(parseInt(document.getElementById("webcamquality").elements.namedItem("resolution").value));

		}).catch(handleError);
	} catch (e){errorlog(e);}
}

function previewWebcam(){
  if( activatedPreview == true){log("activeated preview return 1");return;}
  activatedPreview = true;

  window.setTimeout(() => {
	try{
		  var oldstream= document.getElementById('previewWebcam').srcObject;
		  if (oldstream){
			  log("old stream found");
			  oldstream.getTracks().forEach(function(track) {
				  track.stop();
				  log("stopping old track");
			  });
		  }
	  
		} catch (e){
			errorlog(e);
		}
	   try {
		  navigator.mediaDevices.getUserMedia({audio:true, video:true }).then(function(stream){ // Apple needs thi to happen before I can access EnumerateDevices. 
		  log("got first stream");
				setupWebcamSelection().then(()=>{
					log("Got second stream");
					stream.getTracks().forEach(function(track) { // We don't want to keep it without audio; so we are going to try to add audio now.
						  track.stop(); // I need to do this after the enumeration step, else it breaks firefox's labels
					});
					
				});
		  }).catch(function(e){
			  errorlog("trying to list webcam again");
			  setupWebcamSelection();
		  });
	   } catch (e){
		   
		   if (window.isSecureContext) {
			   alert("An error has occured when trying to access the webcam. The reason is not known.");
		   } else {
				alert("Error acessing webcam.\n\nWebsite is loaded in an insecure context.\n\nPlease see: https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia");
		   }
	   }
	
  },10);
}


function checkOBS(){
	if (!navigator.mediaDevices || !navigator.mediaDevices.enumerateDevices) {
		log("enumerateDevices() not supported.");
		return;
	}

	navigator.mediaDevices.enumerateDevices().then(function(devices) {
		var matchFound = false;
		devices.forEach(function(device) {
			if (device.label.startsWith("OBS-Camera")){
				alert("An OBS Virtual Camera was detected; Success!");
				log(device.kind + ": " + device.label +
					" id = " + device.deviceId);
				matchFound = true;

			}
			log(device.kind + ": " + device.label + " id = " + device.deviceId);
		});
		if (matchFound == false){
			alert("No OBS Virtual Camera was found");
		}
	}).catch(function(err) {
		log(err.name + ": " + err.message);
	});
}

function play(streamid=null){  // play whatever is in the URL params; or filter by a streamID option
	log("play stream");
	if ((urlParams.has('streamid')) || (urlParams.has('view'))){
		var streamlist = urlParams.get('streamid') || urlParams.get('view');
		log(streamlist);
		streamlist = streamlist.split(",");
		for (var j in streamlist){
			if (streamid===null){
				session.watchStream(streamlist[j]);
			} else if (streamid === streamlist[j]){
				session.watchStream(streamlist[j]);
			}
		}
	}
}

var retry=null;

function recordVideo(event, video, UUID, videoKbps=2500){
	var target =  event.currentTarget;
	if ("recording" in video){
			log("ALREADY RECORDING!");
			target.style.backgroundColor = null;
			target.innerHTML = "Record";
			video.recorder.stop();
			session.requestRateLimit(100,UUID);
			delete(video.recorder);
			delete(video.recording);
			
			return;
		
	} else {
		target.style.backgroundColor = "#FCC";
		target.innerHTML = "Download";
		video.recording = true;
	}
	
	videoKbps = prompt("Press OK to start recording. Press again to stop and download.\n\nWarning: Keep this browser tab active to continue recording.\n\nYou can change the default video bitrate if desired below (kbps)",videoKbps);
	videoKbps = parseInt(videoKbps);
	if (videoKbps<35){
		videoKbps=35;
	}
	session.requestRateLimit(videoKbps, UUID);
	
	var filename = Date.now().toString();
	//var canvas = document.createElement('canvas'); 
	//canvas.width = video.videoWidth;
    //canvas.height = video.videoHeight;
	//var ctx = canvas.getContext('2d');
	var recordedBlobs = [];
	
	///var stream = canvas.captureStream();
	stream = video.srcObject;//.getVideoTracks().forEach(
	//stream.getAudioTracks
	
	var cancell = false;
    if (typeof stream == undefined || !stream) {return;}
	
	this.stop = stopRecording;
	
	let options = { 
		mimeType: "video/webm",
		videoBitsPerSecond: parseInt(videoKbps*1000) // 2.5Mbps
	};
	var mediaRecorder = new MediaRecorder(stream,options); 
	
	var lasttime = 0;
	//function drawVideoFrame() {
	//	if (Date.now() - lasttime <= 16){return;}
	//	lasttime=Date.now();
	//	ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
	//  };
	  
	//var drawtimer = setInterval(function(){
	//		requestAnimationFrame(drawVideoFrame);
	//	},25);
	
	function download() {
        const blob = new Blob(recordedBlobs, { type: "video/webm" });
        const url = window.URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.style.display = 'none';
        a.href = url;
        a.download = filename+".webm";
        document.body.appendChild(a);
        a.click();
        setTimeout(() => {
            document.body.removeChild(a);
            window.URL.revokeObjectURL(url);
        }, 100);
    }
	
	function handleDataAvailable(event) {
        if (event.data && event.data.size > 0) {
            recordedBlobs.push(event.data);
        }
    }
    function stopRecording() {
        mediaRecorder.stop();
		//clearInterval(drawtimer);
		cancell = true;
        console.log('Recorded Blobs: ', recordedBlobs);
		download();
    }
	mediaRecorder.ondataavailable = handleDataAvailable;
	//drawVideoFrame();
	
	mediaRecorder.onerror = function(event) {
		errorlog(event);
		stopRecording();
		session.requestRateLimit(100,UUID);
		alert("an error occured with the media recorder; stopping recording");
	};
	 
	stream.ended  = function(event) {
		stopRecording();
		session.requestRateLimit(100,UUID);
		alert("stream ended! stopping recording");
	};
	  
	mediaRecorder.start(100); // 100ms chunks
	
	
	console.log('MediaRecorder started', mediaRecorder);

	return this;
}
function copyFunction(copyText) {
  copyText.select();
  copyText.setSelectionRange(0, 99999);
  document.execCommand("copy");

}


function generateQRPage(){
	try{
		var title = encodeURI(document.getElementById("videoname4").value);
		if (title.length){
			title = "&label="+title;
		}
		var sid = session.generateStreamID(); 
		
		var viewstr = "";
		var sendstr = "";
		
		if (document.getElementById("invite_bitrate").checked){
			viewstr+="&bitrate=20000";
		}
		if (document.getElementById("invite_vp9").checked){
			viewstr+="&codec=vp9";
		}
		if (document.getElementById("invite_stereo").checked){
			viewstr+="&stereo";
			sendstr+="&stereo";
		}
		if (document.getElementById("invite_secure").checked){
			sendstr+="&secure";
		}
		
		sendstr = 'https://' + location.host + location.pathname + '?push=' + sid + sendstr;
		viewstr = 'https://' + location.host+ location.pathname + '?view=' + sid + viewstr + title;
		
		document.getElementById("gencontent").innerHTML = '<br /><div id="qrcode" style="background-color:white;display:inline-block;color:black;max-width:340px;padding:40px;"><h2 style="color:black">Guest Invite Link:</h2><input class="task" onclick="popupMessage(event);copyFunction(this)" onmousedown="copyFunction(this)"  \
		style="cursor:grab;background-color:#CFC;border: 2px solid black;width:260px;font-size:120%;padding:10px;"  value="' + sendstr + '" /><br /><br /></div>\
			<br /><br />and don\'t forget the<h2 style="color:black">OBS Browser Source Link:</h2><input class="task" data-drag="1" onmousedown="copyFunction(this)" onclick="popupMessage(event);copyFunction(this)"  style="cursor:grab;background-color:#FCC;width:400px;font-size:120%;padding:10px;border:2px solid black;margin:5px;" value="' + viewstr + '" /> \
			<br /><br />\
		Please also note, the invite link and OBS ingestion link created is reusable, but only one person may use a specific invite at a time.';
		var qrcode = new QRCode(document.getElementById("qrcode"), {
			width : 300,
			height : 300,
			colorDark : "#000000",
			colorLight : "#FFFFFF",
			useSVG: false
		});
		qrcode.makeCode(sendstr);

	} catch(e){
		errorlog(e);
	}
}


if ((urlParams.has('streamid')) || (urlParams.has('view'))){
	document.getElementById("main").className = "";
	document.getElementById("credits").style.display = 'none';
}


if (((urlParams.has('streamid')) || (urlParams.has('view'))) && (session.roomid==false)){
	document.getElementById("container-4").className = 'column columnfade';
	document.getElementById("container-3").className = 'column columnfade';
	document.getElementById("container-2").className = 'column columnfade';
	document.getElementById("container-1").className = 'column columnfade';
	//document.getElementById("header").className = 'advanced';
	document.getElementById("info").className = 'advanced';
	document.getElementById("header").className = 'advanced';
	document.getElementById("head1").className = 'advanced';
	document.getElementById("head2").className = 'advanced';
	document.getElementById("head3").className = 'advanced';

	document.getElementById("mainmenu").style.backgroundImage = "url('data:image/svg+xml;base64,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')";

	document.getElementById("mainmenu").style.backgroundRepeat = "no-repeat";
	document.getElementById("mainmenu").style.backgroundPosition = "bottom center";
	document.getElementById("mainmenu").style.minHeight = "300px";
	document.getElementById("mainmenu").style.backgroundSize = "100px 100px";
	document.getElementById("mainmenu").innerHTML = '';
	
	setTimeout(function(){
		try{
			if ((urlParams.has('streamid')) || (urlParams.has('view'))){
				if (document.getElementById("mainmenu")){
					document.getElementById("mainmenu").innerHTML = '<font style="color:#666"><h1>Attempting to load video stream.</h1></font>';
					document.getElementById("mainmenu").innerHTML += '<font style="color:#EEE">The stream is not available yet or an error occured.</font><br/><button onclick="location.reload();">Retry Manually</button><br/>';
					retry = setInterval(function(){
						if (document.getElementById("mainmenu")){
							play();
						} else {
							clearInterval(retry);
						}
					},10000);
				}}
		} catch(e){
			errorlog("Error handling QR Code failure");
		}
	},2000);

	log("auto playing");

	if (navigator.userAgent.indexOf('Safari') != -1 && navigator.userAgent.indexOf('Chrome') == -1){ 
		alert("Safari requires us to ask for an audio permission to use peer-to-peer technology. You will need to accept it in a moment if asked to view this live video");
		navigator.mediaDevices.getUserMedia({audio: true}).then(function(){
			play();
		}).catch(function(){
			play();
		});
	} else {
		play();
		//document.getElementById("mainmenu").style.display="none";
	}
}



//

function updateMixer(){
	log("UPDATE mixer");
	var playarea = document.getElementById("gridlayout");
	
	//log(session.mediaPool);
	
	var header = document.getElementById("header");
	
	var hi = header.offsetHeight ;
	//log("Header:"+hi);
	var w = window.innerWidth;
	var h = window.innerHeight - hi;
	var ww = w/16;
	var hh = h/9;
	//log("window.innerWidth"+window.innerWidth+"  "+"window.innerHeight"+window.innerHeight);
	
	var mediaPool = [];
	
	
	if (session.videoElement){ // I, myself, exist
		if (session.videoElement.style.display!="none"){  // local feed
				mediaPool.push(session.videoElement);
		}
	}
	
	if ((session.infocus) && (session.infocus in session.rpcs)){
		mediaPool = [];
		log(session.infocus+" set fullscreen");
		session.requestRateLimit(1200, session.infocus); // 1.2mbps is decent, no?
		mediaPool.push(session.rpcs[session.infocus].videoElement);
		for (var j in session.rpcs){
			if (j != session.infocus){
				session.requestRateLimit(40, j);
			}
		}
	} else if ((session.infocus) && (session.infocus === true)){
		log("myself set fullscreen");
		for (var j in session.rpcs){
			session.requestRateLimit(40, j);
		}
	} else {
		for (var i in session.rpcs){
			if (session.rpcs[i].videoElement){ // remote feeds
			
				session.rpcs[i].targetBandwidth = -1;
				
				if (session.rpcs[i].videoElement.style.display!="none"){  // Add it if not hidden
					mediaPool.push(session.rpcs[i].videoElement);
				}
				
				if (session.director){  // director video should be low-bitrate, although this should never fire.
					errorlog("Update should not be called on DIRECTORs view? sorta at least");
					//session.requestRateLimit(100, i); 
				} else if (session.rpcs[i].videoElement.style.display=="none"){  
					if (session.scene){
						session.requestRateLimit(300, i);  // hidden. I dont want it to be super low, for video quality reasons.
					} else {
						session.requestRateLimit(40, i); // w/e   This is not in OBS, so we just set it as low as possible.  
					}
				} else if (session.single){  // max
				} else if (session.scene){  // max
				} else if (session.roomid){  // guests should see video at low bitrate, ie: 100kbps (not 40kbps like if disabled)
					session.requestRateLimit(100, i); 
				}
				 // only set to 300 if not a guest, or if zoomed in.
				
			}
		}
	}
	
	if (session.director){return;} // director view says go no further :)
	
	if (mediaPool.length>1){
		var mod = Math.pow((ww*hh)/(mediaPool.length),0.5);  // 80
		var rw = Math.ceil(ww/mod);  // 80/80
		var rh = Math.ceil(hh/mod);
	} else { var rw=1; var rh=1;}
	
	//log(mod+","+rw+","+rh);  //80,1,1
	playarea.innerHTML = "";
	var i=0;
	var offset = 0;
	
	//var xhh = h/rh*9/16;
	
	mediaPool.forEach(vid=>{
	
		vid.style.position = "absolute";
		vid.display = "block";
		
		offsetx=0;
		if (Math.ceil((i+0.1)/rw)==rh){
			offsetx = (window.innerWidth- (rw - mediaPool.length%rh)*Math.ceil(window.innerWidth/rw))/2; 
		}// else {
			//console.error((i+0.1)/rw,rh);
		//}
		
		offsety = (h- Math.ceil(mediaPool.length/rw)*Math.ceil(h/rh))/2;
		
		vid.style.left = offsetx+Math.floor(((i%rw)+0)*w/rw)+"px"; 
		
		vid.style.top  = offsety+Math.floor((Math.floor(i/rw)+0)*h/rh + hi)+"px";
												
		vid.style.width = Math.ceil(w/rw)+"px"; 
		vid.style.height = Math.ceil(h/rh)+"px"; 
		playarea.appendChild(vid);
		vid.play();
		
		
		var button = document.createElement("DIV");
		button.id = "button_"+vid.id;
		
		button.innerHTML = "<i class='fa fa-arrows-alt' style='font-size:50px' aria-hidden='true'></i>";
		
		button.style.width ="50px"; 
		button.style.height = "50px"; 
		button.style.position = "absolute"; 
		button.style.display="none";
		
		button.style.left = (Math.ceil(w/rw)  - 50 + offsetx+Math.floor(((i%rw)+0)*w/rw))+"px"; 
		button.style.top  = (  offsety+Math.floor((Math.floor(i/rw)+0)*h/rh + hi))+"px";
		button.style.color = "white";
		button.style.cursor = "pointer";
		
		playarea.appendChild(button);
		if (vid.id == "videosource"){
			button.onclick = function(){
				var target =  event.currentTarget;
				if (session.infocus === true){
					session.infocus = false;
					target.innerHTML = "<i class='fa fa-arrows-alt' style='font-size:50px' aria-hidden='true'></i>";
				} else {
					session.infocus = true;
					log("session: myself");
					target.innerHTML = "<i class='fa fa-compress' style='font-size:50px' aria-hidden='true'></i>";
				}
				setTimeout(()=>updateMixer(),10);
			};
		} else {
			button.dataset.UUID = vid.dataset.UUID;
			button.onclick = function(event){
				var target =  event.currentTarget;
				log("fullscreen");
				log(target);
				if (session.infocus === target.dataset.UUID){
					target.innerHTML = "<i class='fa fa-arrows-alt' style='font-size:50px' aria-hidden='true'></i>";
					session.infocus = false;
				} else {
					target.innerHTML = "<i class='fa fa-compress' style='font-size:50px' aria-hidden='true'></i>";
					session.infocus = target.dataset.UUID;
					log("session:"+target.dataset.UUID);
				}
				setTimeout(()=>updateMixer(),10);
			
			};
		}
		
		button.onmouseenter = function(){
			button.style.display="block";
		};
		
		vid.onmouseenter = function(){
			button.style.display="block";
		};
		vid.onmouseleave = function(){
			button.style.display="none";
		};
		i+=1;
	});
}

var vis = (function(){
	var stateKey, eventKey, keys = {
		hidden: "visibilitychange",
		webkitHidden: "webkitvisibilitychange",
		mozHidden: "mozvisibilitychange",
		msHidden: "msvisibilitychange"
	};
	for (stateKey in keys) {
		if (stateKey in document) {
			eventKey = keys[stateKey];
			break;
		}
	}
	return function(c) {
		if (c) {
			document.addEventListener(eventKey, c);
			//document.addEventListener("blur", c);
			//document.addEventListener("focus", c);
		}
		return !document[stateKey];
	};
})();

(function() {  // right click menu
  
  "use strict";

  function clickInsideElement( e, className ) {
    var el = e.srcElement || e.target;
    
    if ( el.classList.contains(className) ) {
      return el;
    } else {
      while ( el = el.parentNode ) {
        if ( el.classList && el.classList.contains(className) ) {
          return el;
        }
      }
    }

    return false;
  }

  /**
   * Get's exact position of event.
   * 
   * @param {Object} e The event passed in
   * @return {Object} Returns the x and y position
   */
  function getPosition(event2) {
    var posx = 0;
    var posy = 0;

    if (!event2) var event = window.event;
    
    if (event2.pageX || event2.pageY) {
      posx = event2.pageX;
      posy = event2.pageY;
    } else if (event2.clientX || event2.clientY) {
      posx = event2.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
      posy = event2.clientY + document.body.scrollTop + document.documentElement.scrollTop;
    }

    return {
      x: posx,
      y: posy
    };
  }

  var contextMenuClassName = "context-menu";
  var contextMenuItemClassName = "context-menu__item";
  var contextMenuLinkClassName = "context-menu__link";
  var contextMenuActive = "context-menu--active";

  var taskItemClassName = "task";
  var taskItemInContext;

  var clickCoords;
  var clickCoordsX;
  var clickCoordsY;

  var menu = document.querySelector("#context-menu");
  var menuItems = menu.querySelectorAll(".context-menu__item");
  var menuState = 0;
  var menuWidth;
  var menuHeight;
  var menuPosition;
  var menuPositionX;
  var menuPositionY;

  var windowWidth;
  var windowHeight;

  /**
   * Initialise our application's code.
   */
  function init() {
    contextListener();
    clickListener();
    keyupListener();
    resizeListener();
  }

  /**
   * Listens for contextmenu events.
   */
  function contextListener() {
    document.addEventListener( "contextmenu", function(e) {
      taskItemInContext = clickInsideElement( e, taskItemClassName );

      if ( taskItemInContext ) {
        e.preventDefault();
        toggleMenuOn();
        positionMenu(e);
      } else {
        taskItemInContext = null;
        toggleMenuOff();
      }
    });
  }

  /**
   * Listens for click events.
   */
  function clickListener() {
    document.addEventListener( "click", function(e) {
      var clickeElIsLink = clickInsideElement( e, contextMenuLinkClassName );

      if ( clickeElIsLink ) {
        e.preventDefault();
        menuItemListener( clickeElIsLink );
      } else {
        var button = e.which || e.button;
        if ( button === 1 ) {
          toggleMenuOff();
        }
      }
    });
  }

  /**
   * Listens for keyup events.
   */
  function keyupListener() {
    window.onkeyup = function(e) {
      if ( e.keyCode === 27 ) {
        toggleMenuOff();
      }
    };
  }

  /**
   * Window resize event listener
   */
  function resizeListener() {
    window.onresize = function(e) {
      toggleMenuOff();
    };
  }

  /**
   * Turns the custom context menu on.
   */
  function toggleMenuOn() {
    if ( menuState !== 1 ) {
      menuState = 1;
      menu.classList.add( contextMenuActive );
    }
  }

  /**
   * Turns the custom context menu off.
   */
  function toggleMenuOff() {
    if ( menuState !== 0 ) {
      menuState = 0;
      menu.classList.remove( contextMenuActive );
    }
  }

  /**
   * Positions the menu properly.
   * 
   * @param {Object} e The event
   */
  function positionMenu(e) {
    clickCoords = getPosition(e);
    clickCoordsX = clickCoords.x;
    clickCoordsY = clickCoords.y;

    menuWidth = menu.offsetWidth + 4;
    menuHeight = menu.offsetHeight + 4;

    windowWidth = window.innerWidth;
    windowHeight = window.innerHeight;

    if ( (windowWidth - clickCoordsX) < menuWidth ) {
      menu.style.left = windowWidth - menuWidth + "px";
    } else {
      menu.style.left = clickCoordsX + "px";
    }

    if ( (windowHeight - clickCoordsY) < menuHeight ) {
      menu.style.top = windowHeight - menuHeight + "px";
    } else {
      menu.style.top = clickCoordsY + "px";
    }
  }

  /**
   * Dummy action function that logs an action when a menu item link is clicked
   * 
   * @param {HTMLElement} link The link that was clicked
   */
  function menuItemListener(  link ) {
	if (link.getAttribute("data-action")=="Open"){
		window.open(taskItemInContext.value);
	} else {
		// nothing needed
	}
    console.log( "Task ID - " + taskItemInContext + ", Task action - " + link.getAttribute("data-action"));
    toggleMenuOff();
  }

  /**
   * Run the app.
   */
  init();

})();

document.addEventListener("dragstart", event => {
	var url = event.target.href || event.target.value;
	if (!url || !url.startsWith('https://')) return;
	if (event.target.dataset.drag!="1"){
		return;
	}
	var streamId = url.split('view=');
	var label = url.split('label=');

	url += '&layer-name=OBS.Ninja';
	if (streamId.length>1) url += ': ' + streamId[1].split('&')[0];
	if (label.length>1) url += ' - ' + decodeURI(label[1].split('&')[0]);
	
	try{
		var video = document.getElementById('videosource');
		url += '&layer-width=' + video.videoWidth; // this isn't always 100% correct, as the resolution can fluxuate, but it is probably good enough
		url += '&layer-height=' + video.videoHeight;
	} catch(error){
		url += '&layer-width=1280'; // this isn't always 100% correct, as the resolution can fluxuate, but it is probably good enough
		url += '&layer-height=720';
	}
	event.dataTransfer.setData("text/uri-list", encodeURI(url));
});

function popupMessage(e, message="Copied to Clipboard"){  // right click menu
  
    var posx = 0;
    var posy = 0;

    if (!e) var e = window.event;
    
    if (e.pageX || e.pageY) {
		posx = e.pageX;
		posy = e.pageY;
    } else if (e.clientX || e.clientY) {
		posx = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
		posy = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
    }

	posx += 10;

	var contextMenuActive = "context-menu--active";

	var menu = document.querySelector("#messagePopup");
	menu.innerHTML = "<center>"+message+"</center>";
	var menuState = 0;
	var menuWidth;
	var menuHeight;
	var menuPosition;
	var menuPositionX;
	var menuPositionY;

	var windowWidth;
	var windowHeight;

    if ( menuState !== 1 ) {
		menuState = 1;
		menu.classList.add( contextMenuActive );
	}

    menuWidth = menu.offsetWidth + 4;
    menuHeight = menu.offsetHeight + 4;

    windowWidth = window.innerWidth;
    windowHeight = window.innerHeight;

    if ( (windowWidth - posx) < menuWidth ) {
		menu.style.left = windowWidth - menuWidth + "px";
    } else {
		menu.style.left = posx + "px";
    }

    if ( (windowHeight - posy) < menuHeight ) {
		menu.style.top = windowHeight - menuHeight + "px";
    } else {
		menu.style.top = posy + "px";
    }
	
	function toggleMenuOff() {
		if ( menuState !== 0 ) {
		  menuState = 0;
		  menu.classList.remove( contextMenuActive );
		}
	}
	setTimeout(function(){toggleMenuOff();},1000);
}