import { observer } from "mobx-react";
import React = require("react");
import { CollectionFreeFormDocumentViewProps } from "../nodes/CollectionFreeFormDocumentView";
import { FieldViewProps, FieldView } from "../nodes/FieldView";
import { observable, action } from "mobx";
import { DocumentDecorations, CloseCall } from "../DocumentDecorations";
import { InkingControl } from "../InkingControl";
import "../../views/nodes/WebBox.scss";
import "./DashWebRTCVideo.scss";
import adapter from 'webrtc-adapter';
import { DocServer } from "../../DocServer";
import { DocumentView } from "../nodes/DocumentView";
import { Utils } from "../../../Utils";
import { MessageStore } from "../../../server/Message";
import { initialize, hangup } from "./WebCamLogic";

const mediaStreamConstraints = {
    video: true,
};

const offerOptions = {
    offerToReceiveVideo: 1,
};

/**
 * This models the component that will be rendered, that can be used as a doc that will reflect the video cams.
 */
@observer
export class DashWebRTCVideo extends React.Component<CollectionFreeFormDocumentViewProps & FieldViewProps> {
    @observable private localVideoEl: HTMLVideoElement | undefined;
    @observable private peerVideoEl: HTMLVideoElement | undefined;
    private roomText: HTMLInputElement | undefined;
    // private roomOfCam: string = "";
    // private isChannelReady = false;
    // private isInitiator = false;
    // private isStarted = false;
    @observable remoteVideoAdded: boolean = false;
    // localStream: MediaStream | undefined;
    // private pc: any;
    // remoteStream: MediaStream | undefined;
    // private turnReady: boolean | undefined;
    // //localVideo: HTMLVideoElement | undefined;
    // //remoteVideo: HTMLVideoElement | undefined;
    // curRoom: string = "";

    // private pcConfig = {
    //     'iceServers': [{
    //         'urls': 'stun:stun.l.google.com:19302'
    //     }]
    // };

    // // Set up audio and video regardless of what devices are present.
    // private sdpConstraints = {
    //     offerToReceiveAudio: true,
    //     offerToReceiveVideo: true
    // };

    componentDidMount() {
        DocumentDecorations.Instance.addCloseCall(this.closeConnection);
        // setTimeout(() => initialize(), 10000);
        // let self = this;
        // window.onbeforeunload = function () {
        //     self.sendMessage('bye');
        // };
    }

    closeConnection: CloseCall = () => {
        hangup();
    }

    @action
    changeUILook = () => {
        this.remoteVideoAdded = true;
    }

    // componentWillUnmount() {
    // }


    // init(room: string) {

    //     this.curRoom = room;
    //     let self = this;

    //     if (room !== '') {
    //         DocServer._socket.emit('create or join', room);
    //         console.log('Attempted to create or  join room', room);

    //     }

    //     DocServer._socket.on('created', function (room: string) {
    //         console.log('Created room ' + room);
    //         self.isInitiator = true;
    //     });

    //     DocServer._socket.on('full', function (room: string) {
    //         console.log('Room ' + room + ' is full');
    //     });

    //     DocServer._socket.on('join', function (room: string) {
    //         console.log('Another peer made a request to join room ' + room);
    //         console.log('This peer is the initiator of room ' + room + '!');
    //         self.isChannelReady = true;
    //     });


    //     DocServer._socket.on('joined', function (room: string) {
    //         console.log('joined: ' + room);
    //         self.isChannelReady = true;
    //     });


    //     DocServer._socket.on('log', function (array: any) {
    //         console.log.apply(console, array);
    //     });

    //     // This client receives a message
    //     DocServer._socket.on('message', async function (message: any) {
    //         console.log('Client received message:', message);
    //         if (message.message === 'got user media') {
    //             self.maybeStart();
    //         } else if (message.message.type === 'offer') {
    //             if (!self.isInitiator && !self.isStarted) {
    //                 self.maybeStart();
    //             }
    //             await self.pc.setRemoteDescription(new RTCSessionDescription(message.message));
    //             self.doAnswer();
    //         } else if (message.message.type === 'answer' && self.isStarted) {
    //             await self.pc.setRemoteDescription(new RTCSessionDescription(message.message));
    //         } else if (message.message.type === 'candidate' && self.isStarted) {
    //             let candidate = new RTCIceCandidate({
    //                 sdpMLineIndex: message.message.label,
    //                 candidate: message.message.candidate
    //             });
    //             self.pc.addIceCandidate(candidate);
    //         } else if (message.message === 'bye' && self.isStarted) {
    //             self.handleRemoteHangup();
    //         }
    //     });

    //     navigator.mediaDevices.getUserMedia({
    //         audio: true,
    //         video: true
    //     })
    //         .then(this.gotStream)
    //         .catch(function (e) {
    //             alert('getUserMedia() error: ' + e.name);
    //         });

    //     //Trying this one out!!!
    //     console.log('Getting user media with constraints', this.constraints);

    //     if (location.hostname !== 'localhost') {
    //         this.requestTurn(
    //             'https://computeengineondemand.appspot.com/turn?username=41784574&key=4080218913'
    //         );
    //     }


    // }


    // private sendMessage = (message: any) => {
    //     console.log('Client sending message: ', message);
    //     Utils.Emit(DocServer._socket, MessageStore.NotifyRoommates, { message: message, room: this.curRoom });
    //     //DocServer._socket.emit('message', message);
    // }



    // private gotStream = (stream: any) => {
    //     console.log('Adding local stream.');
    //     this.localStream = stream;
    //     this.localVideoEl!.srcObject = stream;
    //     this.sendMessage('got user media');
    //     if (this.isInitiator) {
    //         this.maybeStart();
    //     }
    // }

    // constraints = {
    //     video: true,
    //     audio: true
    // };





    // private maybeStart = () => {
    //     console.log('>>>>>>> maybeStart() ', this.isStarted, this.localStream, this.isChannelReady);
    //     if (!this.isStarted && typeof this.localStream !== 'undefined' && this.isChannelReady) {
    //         console.log('>>>>>> creating peer connection');
    //         this.createPeerConnection();
    //         this.pc.addStream(this.localStream);
    //         this.isStarted = true;
    //         console.log('isInitiator', this.isInitiator);
    //         if (this.isInitiator) {
    //             this.doCall();
    //         }
    //     }
    // }


    // // //this will need to be changed to our version of hangUp
    // // window.onbeforeunload = function () {
    // //     sendMessage('bye');
    // // };

    // private createPeerConnection = () => {
    //     try {
    //         this.pc = new RTCPeerConnection(undefined);
    //         this.pc.onicecandidate = this.handleIceCandidate;
    //         this.pc.onaddstream = this.handleRemoteStreamAdded;
    //         this.pc.onremovestream = this.handleRemoteStreamRemoved;
    //         console.log('Created RTCPeerConnnection');
    //     } catch (e) {
    //         console.log('Failed to create PeerConnection, exception: ' + e.message);
    //         alert('Cannot create RTCPeerConnection object.');
    //         return;
    //     }
    // }

    // private handleIceCandidate = (event: any) => {
    //     console.log('icecandidate event: ', event);
    //     if (event.candidate) {
    //         this.sendMessage({
    //             type: 'candidate',
    //             label: event.candidate.sdpMLineIndex,
    //             id: event.candidate.sdpMid,
    //             candidate: event.candidate.candidate
    //         });
    //     } else {
    //         console.log('End of candidates.');
    //     }
    // }

    // private handleCreateOfferError = (event: any) => {
    //     console.log('createOffer() error: ', event);
    // }

    // private doCall = () => {
    //     console.log('Sending offer to peer');
    //     this.pc.createOffer(this.setLocalAndSendMessage, this.handleCreateOfferError);
    // }

    // private doAnswer = () => {
    //     console.log('Sending answer to peer.');
    //     this.pc.createAnswer().then(
    //         this.setLocalAndSendMessage,
    //         this.onCreateSessionDescriptionError
    //     );
    // }

    // private setLocalAndSendMessage = (sessionDescription: any) => {
    //     this.pc.setLocalDescription(sessionDescription);
    //     console.log('setLocalAndSendMessage sending message', sessionDescription);
    //     this.sendMessage(sessionDescription);
    // }

    // private onCreateSessionDescriptionError = (error: any) => {
    //     console.log('Failed to create session description: ' + error.toString());
    // }


    // private requestTurn = (turnURL: any) => {
    //     var turnExists = false;
    //     let self = this;
    //     for (var i in this.pcConfig.iceServers) {
    //         if (this.pcConfig.iceServers[i].urls.substr(0, 5) === 'turn:') {
    //             turnExists = true;
    //             this.turnReady = true;
    //             break;
    //         }
    //     }
    //     if (!turnExists) {
    //         console.log('Getting TURN server from ', turnURL);
    //         // No TURN server. Get one from computeengineondemand.appspot.com:
    //         var xhr = new XMLHttpRequest();
    //         xhr.onreadystatechange = function () {
    //             if (xhr.readyState === 4 && xhr.status === 200) {
    //                 var turnServer = JSON.parse(xhr.responseText);
    //                 console.log('Got TURN server: ', turnServer);
    //                 self.pcConfig.iceServers.push({
    //                     'urls': 'turn:' + turnServer.username + '@' + turnServer.turn,
    //                     //'credential': turnServer.password
    //                 });
    //                 self.turnReady = true;
    //             }
    //         };
    //         xhr.open('GET', turnURL, true);
    //         xhr.send();
    //     }
    // }
    // @action
    // private handleRemoteStreamAdded = (event: MediaStreamEvent) => {
    //     console.log('Remote stream added.');
    //     this.remoteStream = event.stream!;
    //     this.peerVideoEl!.srcObject = this.remoteStream;
    //     this.remoteVideoAdded = true;
    // }

    // private handleRemoteStreamRemoved = (event: MediaStreamEvent) => {
    //     console.log('Remote stream removed. Event: ', event);
    // }

    // private hangup = () => {
    //     console.log('Hanging up.');
    //     if (this.pc) {
    //         stop();
    //         this.sendMessage('bye');
    //     }

    //     if (this.localStream) {
    //         this.localStream.getTracks().forEach(track => track.stop());
    //     }

    // }

    // private handleRemoteHangup = () => {
    //     console.log('Session terminated.');
    //     this.stop();
    //     this.isInitiator = false;

    //     if (this.localStream) {
    //         this.localStream.getTracks().forEach(track => track.stop());
    //     }


    // }

    // private stop = () => {
    //     this.isStarted = false;
    //     this.pc.close();
    //     this.pc = null;
    // }






    /**
      * Function that submits the title entered by user on enter press.
      */
    private onEnterKeyDown = (e: React.KeyboardEvent) => {
        if (e.keyCode === 13) {
            let submittedTitle = this.roomText!.value;
            this.roomText!.value = "";
            this.roomText!.blur();
            initialize(submittedTitle, this.changeUILook);
        }
    }


    public static LayoutString(fieldKey: string) { return FieldView.LayoutString(DashWebRTCVideo, fieldKey); }

    _ignore = 0;
    onPreWheel = (e: React.WheelEvent) => {
        this._ignore = e.timeStamp;
    }
    onPrePointer = (e: React.PointerEvent) => {
        this._ignore = e.timeStamp;
    }
    onPostPointer = (e: React.PointerEvent) => {
        if (this._ignore !== e.timeStamp) {
            e.stopPropagation();
        }
    }
    onPostWheel = (e: React.WheelEvent) => {
        if (this._ignore !== e.timeStamp) {
            e.stopPropagation();
        }
    }

    render() {
        let content =
            <div className="webcam-cont" style={{ width: "100%", height: "100%" }} onWheel={this.onPostWheel} onPointerDown={this.onPostPointer} onPointerMove={this.onPostPointer} onPointerUp={this.onPostPointer}>
                <div className="webcam-header">DashWebRTC</div>
                <input id="roomName" type="text" placeholder="Enter room name" ref={(e) => this.roomText = e!} onKeyDown={this.onEnterKeyDown} />
                <video id="localVideo" className={"RTCVideo" + (this.remoteVideoAdded ? " side" : " main")} autoPlay playsInline ref={(e) => {
                    this.localVideoEl = e!;
                }}></video>
                <video id="remoteVideo" className="RTCVideo main" autoPlay playsInline ref={(e) => {
                    this.peerVideoEl = e!;
                }}></video>

            </div >;

        let frozen = !this.props.isSelected() || DocumentDecorations.Instance.Interacting;
        let classname = "webBox-cont" + (this.props.isSelected() && !InkingControl.Instance.selectedTool && !DocumentDecorations.Instance.Interacting ? "-interactive" : "");


        return (
            <>
                <div className={classname}  >
                    {content}
                </div>
                {!frozen ? (null) : <div className="webBox-overlay" onWheel={this.onPreWheel} onPointerDown={this.onPrePointer} onPointerMove={this.onPrePointer} onPointerUp={this.onPrePointer} />}
            </>);
    }


}