var sock = null;

var ellog = null;

function log(m) {

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

   ellog.scrollTop = ellog.scrollHeight;

};

var sceneWidth = 1000;

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

var sceneBgColor = 0x66FF99;

var manualFramerate = 24;

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

var lineInterval = 2000; // means line every 2 seconds

var nbLines = -1;

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

var zeroTime = new Date("2014-10-06T12:16:43.000000Z").getTime();

var noteDict = {};

//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

//requestAnimFrame( animate );

//Draw 127 lines

var delta = sceneHeight / 128;

for(var i=1;i<128;i++){

  var graphics = new PIXI.Graphics();

  graphics.beginFill(0xFFFF00);

  graphics.lineStyle(1, 0xAAAAAA);

  var y = delta * i;

  graphics.moveTo(0, y);

  graphics.lineTo(sceneWidth, y);

  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);

//create a texture from an image path

var texture = PIXI.Texture.fromImage("bunny.png");

/*function animate() {

    requestAnimFrame( animate );

    // just for fun, lets rotate mr rabbit a little

    //bunny.rotation += 0.1;

    container.x -= speed;

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

    // render the stage  

    renderer.render(stage);

}*/

function moveContainer() {

    container.x -= pixelsPerSecond/manualFramerate;

    renderer.render(stage);

}

function addBunny(data){

    var note = data.content[3];

    var velocity = data.content[4];

    if(velocity===0){

        if(note in noteDict){

            // We close the note

            var beginDelta = beginTime - zeroTime;

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

            var beginX = beginDelta * pixelsPerSecond / 1000;

            // We draw the rectangle

            var graphics = new PIXI.Graphics();

            graphics.beginFill(0x0000AA, (noteDict[note].velocity / 128));

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

            graphics.drawRect(beginX, y, width, sceneHeight / 128);

            graphics.endFill();

            container.addChild(graphics);

            delete noteDict[note];

        }

    }

    else{

    }

}

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.moveTo(x, 0);

    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;

    t.y = sceneHeight - 20;

    container.addChild(t);

}

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