var sock = null;

var ellog = null;

function log(m) {

   ellog.innerHTML += m + '\n';

   ellog.scrollTop = ellog.scrollHeight;

};

// Config vars

var sceneHeight = 128 * 4; // multiple of 128 because of 128 levels in midi signals ->  better look

var manualFramerate = 24;

var pixelsPerSecond = 50; // nb of pixels per second

var nbLines = -1;

//var speed = 1; // container -x position at each frame. Speed = 1 ~ 100px for 2 seconds

var noteDict = {};

var pianoNotes = [1,0,1,0,1,1,0,1,0,1,0,1];//Do, Do#, Ré, Ré#, Mi, Fa, Fa#, Sol, Sol#, La, La#, Si

// Visual config

var drawPianoNotes = false;

//create an new instance of a pixi stage

var stage = new PIXI.Stage(sceneBgColor);

//create a renderer instance.

var renderer = PIXI.autoDetectRenderer(sceneWidth, sceneHeight);

//add the renderer view element to the DOM

document.getElementById("canvasContainer").appendChild(renderer.view);

//requestAnimFrame( animate );

//Draw 127 lines

var delta = sceneHeight / 128;

}

//Draw piano notes on the left

if(drawPianoNotes){

    for(var i=0;i<128;i++){

        var graphics = new PIXI.Graphics();

        var color = pianoNotes[i%12]==1 ? 0xFFFFFF : 0x000000;

        if(i==60){

            color = 0xFFD700;

        }

        graphics.beginFill(color);

        graphics.lineStyle(1, 0xAAAAAA);

        var y = sceneHeight - delta * (i+1);

        graphics.drawRect(0, y, 20, delta);

        graphics.endFill();

        stage.addChild(graphics);

    }

}

var uberContainer = new PIXI.DisplayObjectContainer();

uberContainer.position.x = Math.floor(sceneWidth*4/5);

uberContainer.position.y = 0;

stage.addChild(uberContainer);

var container = new PIXI.DisplayObjectContainer();

container.position.x = 0;

container.position.y = 0;

uberContainer.addChild(container);

function moveContainer() {

    container.x -= pixelsPerSecond/manualFramerate;

    renderer.render(stage);

}

function addBunny(data){

    var timeFromZero = data.content[1];

    var note = data.content[3];

    var velocity = data.content[4];

    if(velocity===0){

        if(note in noteDict){

            // We close the note

            /*var beginTime = new Date(noteDict[note].ts).getTime();

            var beginDelta = beginTime - zeroTime;

            var durationDelta = new Date(data.ts).getTime() - beginTime;

            var beginX = beginDelta * pixelsPerSecond / 1000;

            var width = durationDelta * pixelsPerSecond / 1000;*/

            var beginX = noteDict[note].ts * pixelsPerSecond / 1000;

            var width = (timeFromZero - noteDict[note].ts) * pixelsPerSecond / 1000;

            // We draw the rectangle

            var graphics = new PIXI.Graphics();

            var y = (128-note) * sceneHeight / 128; // (128-note) because y = 0 is for note = 128 and y = 128 for note = 0

            graphics.endFill();

            container.addChild(graphics);

            delete noteDict[note];

        }

    }

    else{

        noteDict[note] = {ts: timeFromZero, velocity:velocity};

    }

}

window.onload = function() {

    ellog = document.getElementById('log');

    var wsuri;

    if (window.location.protocol === "file:") {

       wsuri = "ws://127.0.0.1:8090/broadcast";

    } else {

       wsuri = "ws://" + window.location.hostname + ":8090/broadcast";

    }

    if ("WebSocket" in window) {

       sock = new WebSocket(wsuri);

    } else if ("MozWebSocket" in window) {

       sock = new MozWebSocket(wsuri);

    } else {

       log("Browser does not support WebSocket!");

       window.location = "http://autobahn.ws/unsupportedbrowser";

    }

    if (sock) {

       sock.onopen = function() {

          log("Connected to " + wsuri);

       }

       sock.onclose = function(e) {

          log("Connection closed (wasClean = " + e.wasClean + ", code = " + e.code + ", reason = '" + e.reason + "')");

          sock = null;

       }

       sock.onmessage = function(e) {

          log("Got message: " + e.data);

          addBunny(JSON.parse(e.data));

       }

    }

};

function addLine(){

    nbLines++;

    var graphics = new PIXI.Graphics();

    var x = nbLines * (lineInterval/1000) * pixelsPerSecond;

    //console.log("nbLines = ",nbLines, "x = ", x);

    graphics.beginFill(0xFFFF00);

    graphics.lineStyle(1, 0x444444);

    graphics.lineTo(x, sceneHeight);

    graphics.endFill();

    container.addChild(graphics);

    // Add text

    var totalSec = nbLines * lineInterval / 1000;

    var hours = parseInt( totalSec / 3600 ) % 24;

    var minutes = parseInt( totalSec / 60 ) % 60;

    var seconds = totalSec % 60;

    var timeStr = (hours < 10 ? "0" + hours : hours) + ":" + (minutes < 10 ? "0" + minutes : minutes) + ":" + (seconds  < 10 ? "0" + seconds : seconds);

    var t = new PIXI.Text(timeStr, { font: "10pt Arial", fill: "#444444" });

    t.x = x + 2;

    container.addChild(t);

}

var moveInterval = window.setInterval(moveContainer, 1000/manualFramerate);

var verticalLinesInterval = false;

if(drawVerticalLines){

    verticalLinesInterval = window.setInterval(addLine, lineInterval);

}