/**
 * @type {import("./MWSE/index").default}
 */
let mwse;
/**
 * @type {string}
 */
let mySocketId;
/**
 * @type {string}
 */
let myIPAddress;
/**
 * @type {string}
 */
let myNumber;
/**
 * @type {string}
 */
let roomid;
/**
 * @type {import("./MWSE/Room").default}
 */
let room;
/**
 * @type {MediaStream}
 */
let primaryVideoContent;
/**
 * @type {HTMLVideoElement}
 */
let primaryVideo;
/**
 * @type {HTMLVideoElement}
 */
let primaryVideoShadow;
/**
 * @type {HTMLVideoElement}
 */
let secondaryVideo;
/**
 * @type {MediaStream}
 */
let outgoingStream;
/**
 * @type {MediaStream}
 */
let outgoingStreamOnlyVideo;
/**
 * @type {HTMLDivElement}
 */
let videoContainer = document.querySelector(".videolist");

function connect()
{
    mwse = new MWSE({
        endpoint: "wss://ws.saqut.com"
    });
    
    mwse.scope(beginEngine);
}
/**
 * @type {HTMLVideoElement}
 */
let activeVideo;

function setPrimaryVideo(video, soundOn)
{
    primaryVideo.srcObject = video;
    primaryVideoShadow.srcObject = video;
    if(soundOn == undefined)
    {
        primaryVideo.muted = 1;
        primaryVideo.volume = 0;
    }else if(soundOn){
        primaryVideo.muted = 0;
        primaryVideo.volume = 1;
    }else{
        primaryVideo.muted = 0;
        primaryVideo.volume = 0;
    }
}
function setSecondaryVideo(video)
{
    // secondaryVideo.srcObject = video;
}
function templateVideo(name, stream)
{
    let i = document.createElement("video");
    i.muted = 1;
    i.classList.add("frame")
    i.playsInline = 1;
    i.autoplay = 1;
    i.dataset.name = name;
    if(stream) i.srcObject = stream;
    return i;
}
function addVideoList(name, stream, peer)
{
    if(!videoContainer.querySelector(`[name="${name}"]`))
    {
        let video = templateVideo(name, stream);
        video.dataset.user = peer.socketId;
        video.onclick = function(){
            if(activeVideo)
            {
                activeVideo.classList.remove("active");
            };
            video.classList.add("active");
            activeVideo = video;
            setPrimaryVideo(stream, true);
        };
        videoContainer.appendChild(video);
    }
}

function removeVideoList(name)
{
    if(videoContainer.querySelector(`[data-name="${name}"]`))
    {
        let k = videoContainer.querySelector(`[data-name="${name}"]`);
        if(k.dataset.user == activeVideo?.dataset.user || !activeVideo)
        {
            setPrimaryVideo(outgoingStreamOnlyVideo, false);
        }
        k.remove();
    }
}

async function beginEngine()
{
    let me = mwse.peer("me");
    me.disablePairAuth();
    mySocketId = me.socketId;
    myIPAddress = await mwse.virtualPressure.allocAPIPAddress();
    myNumber = await mwse.virtualPressure.allocAPNumber();

    let url = new URL(window.location);
    roomid = url.searchParams.get("room");
    if(!!roomid == 0)
    {
        let hash = window.crypto.randomUUID();
        url.searchParams.set("room", hash);
        window.location = url.href;
    };

    connectRoom(roomid);
};

window.addEventListener("load", () => {
    primaryVideo = document.querySelector("#primaryVideo");
    secondaryVideo = document.querySelector("#secondaryVideo");
    primaryVideoShadow = document.querySelector("#primaryVideoShadow");
    connect()
});

async function startOutgoingWebcam()
{
    outgoingStream = await navigator.mediaDevices.getUserMedia({video: true, audio: true});
    outgoingStreamOnlyVideo = new MediaStream(outgoingStream);
    outgoingStreamOnlyVideo.removeTrack(outgoingStreamOnlyVideo.getAudioTracks()[0])
}

async function connectRoom()
{
    await startOutgoingWebcam();

    room = mwse.room({
        name: roomid,
        joinType: "free",
        accessType: "private",
        description: "Private free joined room",
        ifexistsJoin: true,
        notifyActionEjected: true,
        notifyActionInvite: false,
        notifyActionJoined: true
    });
    await room.createRoom();
    
    room.on("join", peer => IncomingPeer(peer, true));
    room.on("eject", peer => OutgoingPeer(peer));

    for (const peer of await room.fetchPeers()) {
        IncomingPeer(peer)
    }
    if(!primaryVideoContent)
    {
        setPrimaryVideo(outgoingStreamOnlyVideo);
    }
    setSecondaryVideo(outgoingStreamOnlyVideo);

    addVideoList("My Webcam",outgoingStreamOnlyVideo, mwse.peer("me"))

}
/**
 * @param {import("./MWSE/Peer").default} peer 
 */
function IncomingPeer(peer,activeConnect)
{
    let sendedOTP = false;
    peer.createRTC({
        iceServers:[{
            urls: "turn:161.97.136.175:3478",
            username: "argist-eu-east-25",
            credential: "ee7df17eed35f4cf5a207777f3c0cd7d3b1901a5de7aff52ea55742289d7fee2"
        },{
            urls: "stun:stun.l.google.com:19302"
        },{
            urls: "stun:stun1.l.google.com:19302"
        },{
            urls: "stun:stun2.l.google.com:19302"
        },{
            urls: "stun:stun3.l.google.com:19302"
        },{
            urls: "stun:stun4.l.google.com:19302"
        }],
        bundlePolicy: "max-compat",
        iceCandidatePoolSize: 0,
        iceTransportPolicy: "all"
    });
    if(activeConnect)
    {
        peer.rtc.connect();
    }
    peer.rtc.on('connected',() => {
        if(!activeConnect && !sendedOTP)
        {
            sendedOTP = true;
            peer.rtc.sendStream(outgoingStream, "Webcam", {});
        }
    });
    peer.rtc.on('disconnected',() => {
        removeVideoList(peer.streamY, peer);
    });
    peer.rtc.on("stream:added", ({stream,name}) => {
        peer.streamY = peer.socketId + " | " + name + " - " + stream.id;
        addVideoList(peer.socketId + " | " + name + " - " + stream.id,stream, peer);

        if(!primaryVideoContent)
        {
            primaryVideoContent = stream;
            setPrimaryVideo(primaryVideoContent, true);
        }

        if(activeConnect && !sendedOTP)
        {
            sendedOTP = true;
            peer.rtc.sendStream(outgoingStream, "Webcam", {});
        }
    })
}
/**
 * @param {import("./MWSE/Peer").default} peer 
 */
function OutgoingPeer(peer)
{
    removeVideoList(peer.streamY, peer);
}