// Config vars

var logger = false;

var sceneWidth = 1920;

var prHeight1 = 435;

var prHeight2 = 645;

var sceneHeight = prHeight1 + prHeight2;

var sceneBgColor = 0xFFFFFF;

var lineColor = 0x444444;

var pixelsPerSecond1 = Math.floor(sceneWidth / 10); // nb of pixels per second

var manualFramerate = pixelsPerSecond1 / 4;

var pixelsPerSecond2 = Math.floor(sceneWidth / 60); // nb of pixels per second

var lineInterval = 5000; // means line every 5 seconds

var nbLines = -1;

var noteHeight = 110;

var noteColors = [0xB90000, 0x4BDD71, 0xAF931E, 0x1C28BA, 0x536991];

var colorsReg = {}

// Vars

var noteDict = [];

// Timecode method

var timePageLoaded = Date.now();

var offsetMusic = 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);

var uberContainer = new PIXI.DisplayObjectContainer();

uberContainer.position.x = Math.floor(sceneWidth*9/10);

uberContainer.position.y = 0;

stage.addChild(uberContainer);

function PianoRoll(parentContainer, xInit, yInit, height, linesDown, pixelsPerSecond, width, noteColors, colorsReg){

    var _this = this;

    this.container = new PIXI.DisplayObjectContainer();

    this.container.position.x = xInit;

    this.container.position.y = yInit;

    parentContainer.addChild(this.container);

    this.linesDown = linesDown;

    this.height = height;

    this.pixelsPerSecond = pixelsPerSecond;

    this.width = width;

    this.noteColors = noteColors;

    this.colorsReg = colorsReg || {}

    this.addNote = function(note, startTime, duration, velocity, canal){

        //console.log("coucou 1", note, timeFromZero, ts, velocity, pixelsPerSecond, container, prHeight);

        var beginX = (offsetMusic + startTime) * this.pixelsPerSecond / 1000;

        var width = duration * this.pixelsPerSecond / 1000;

        // We draw the rectangle

        var graphics = new PIXI.Graphics();

        //console.log("beginX = ", beginX, "canal = ", canal, "color = ", noteColor[canal], "width = ", width, "note = ", note, "velocity = ", velocity);

        var color = this.colorsReg[canal];

        if(typeof(color) === 'undefined') {

            var colorsRegSize = Object.keys(this.colorsReg).length

            if(colorsRegSize < this.noteColors.length) {

                color = this.colorsReg[canal] = this.noteColors[colorsRegSize];

            }

            else {

                color = this.colorsReg[canal] = parseInt(randomColor({ luminosity: 'light', hue: 'random', format:'hex'}).replace(/^#/, ''), 16);

            }

        }

        graphics.beginFill(color, (velocity / 128));

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

        graphics.drawRect(0, Math.floor(y - (noteHeight/2) + ((this.height / 128)/2)), width, noteHeight);

        graphics.endFill();

        graphics.x = beginX;

        this.container.addChild(graphics);

    };

    this.addLine = function(lineNb){

        var graphics = new PIXI.Graphics();

        var x = -this.container.x;

        graphics.beginFill(0xFFFF00);

        graphics.lineStyle(1, lineColor);

        var y = this.linesDown ? this.height - 20 : 0;

        graphics.moveTo(x, y);

        graphics.lineTo(x, y + 20);

        graphics.endFill();

        this.container.addChild(graphics);

        // Add text

        var totalSec = lineNb * 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 fontObj = { font: "10pt Arial", fill: "#444444" };

        var t = new PIXI.Text(timeStr, fontObj);

        t.x = x + 2;

        t.y = this.linesDown ? this.height - 15 : 2;

        this.container.addChild(t);

    };

    this.moveTo = function(diffTime){

        this.container.x = Math.floor(diffTime*this.pixelsPerSecond);

    };

    this.removePassedObjets = function(){

        var nbChilds = _this.container.children.length;

        var i = 0, childIsNowDisplayed = false;

        while(i<nbChilds && !childIsNowDisplayed){

            var child = _this.container.children[0];

            //console.log("remove ? ", child.x, child.width, ((child.x + child.width) < (Math.abs(_this.container.x) - _this.width)));

            if((child.x + child.width) < (Math.abs(_this.container.x) - _this.width)){

                _this.container.removeChild(child);

                //console.log("    remove !!!");

            }

            else{

                childIsNowDisplayed = true;

                //console.log("    childIsNowDisplayed");

            }

            i++;

        }

        //console.log("before : ", nbChilds, ", after : ", _this.container.children.length);

    };

    // remove notes each scene width

    var removeInterval = window.setInterval(this.removePassedObjets, 1000 * sceneWidth / this.pixelsPerSecond );

}

// Init containers

var containerList = [];

containerList.push(new PianoRoll(uberContainer, 0, 0, prHeight1, true, pixelsPerSecond1, sceneWidth, noteColors, colorsReg));

containerList.push(new PianoRoll(uberContainer, 0, prHeight1, prHeight2, false, pixelsPerSecond2, sceneWidth, noteColors, colorsReg));

// Line between two containers

var graphics = new PIXI.Graphics();

graphics.beginFill(0xFFFF00);

graphics.lineStyle(1, lineColor);

graphics.moveTo(0, prHeight1);

graphics.lineTo(sceneWidth, prHeight1);

graphics.endFill();

stage.addChild(graphics);

function replaceContainers(){

    var diff = (Date.now() - timePageLoaded)/1000;// nb of seconds since page loaded

    //console.log("replace ! diff1 = ", container1.x - Math.floor(-diff*pixelsPerSecond1), ", diff 2 = ", container2.x - Math.floor(-diff*pixelsPerSecond2));

    for(var i=0;i<containerList.length;i++){

        containerList[i].moveTo(-diff);

    }

    renderer.render(stage);

}

function addNotes(data){

    if(!offsetMusic){

        // get difference between the current note timecode and my zero to set the difference between the canvas's zero and the music's zero

        // in order to place in real time

        var now = Date.now();

        var timeBetweenNowAndStart = now - timePageLoaded;

        offsetMusic = timeBetweenNowAndStart - data.content[1];

        //console.log("start: ", timePageLoaded, ", now: ", now, ", timeBetweenNowAndStart = ", timeBetweenNowAndStart, ", offsetMusic = ", offsetMusic);

    }

    var note = data.content[3];

    var velocity = data.content[4];

    if(velocity===0){

        if(typeof noteDict[data.content[2]][note]!=='undefined'){

            // We close the note in container one

            //console.log("coucou 2", data);

            var duration = data.content[1] - noteDict[data.content[2]][note].ts;

            for(var i=0;i<containerList.length;i++){

                //               addNote(note, startTime,                          duration, velocity,                                 canal)

                containerList[i].addNote(note, noteDict[data.content[2]][note].ts, duration, noteDict[data.content[2]][note].velocity, data.content[2]);

            }

            // delete entry

            delete noteDict[data.content[2]][note];

        }

    }

    else{

        if(typeof noteDict[data.content[2]]==='undefined'){

            noteDict[data.content[2]] = {};

        }

        noteDict[data.content[2]][note] = {ts: data.content[1], velocity:velocity};

    }

}

function addLine(){

    nbLines++;

    for(var i=0;i<containerList.length;i++){

        containerList[i].addLine(nbLines);

    }

}

// Socket management

var sock = null;

var ellog = null;

function log(m) {

    if(logger){

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

        ellog.scrollTop = ellog.scrollHeight;

    }

}

window.onload = function(){

    if(logger){

        ellog = document.getElementById('log');

    }

    else{

        document.body.removeChild(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";

    }

    wsuri = wsuri + "?channel=PIANOROLL&event_code="+event_code;

    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(){

            if(logger){

                log("Connected to " + wsuri);

            }

        }

        sock.onclose = function(e) {

            if(logger){

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

            }

            sock = null;

        }

        sock.onmessage = function(e) {

            if(logger){

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

            }

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

        }

    }

};

// Init page and intervals

addLine();

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

var verticalLinesInterval = window.setInterval(addLine, lineInterval);

// Little inteval to show time

var nbSec = 0;

var mySpan = document.getElementById("myspan");

function updateTime(){

    nbSec++;

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

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

    var seconds = nbSec % 60;

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

    mySpan.innerHTML = timeStr;

}

var secondInterval = window.setInterval(updateTime, 1000);