//
//  Recorder.js
//  examples
//
//  Created by Clément Brisset on 8/20/14.
//  Copyright 2014 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

/* globals Tool, ToolBar */

Script.include("/~/system/libraries/toolBars.js");

var recordingFile = "recording.hfr";

function setDefaultPlayerOptions() {
    Recording.setPlayFromCurrentLocation(true);
    Recording.setPlayerUseDisplayName(false);
    Recording.setPlayerUseAttachments(false);
    Recording.setPlayerUseHeadModel(false);
    Recording.setPlayerUseSkeletonModel(true);
}

var windowDimensions = Controller.getViewportDimensions();
var TOOL_ICON_URL = Script.getExternalPath(Script.ExternalPaths.Assets, + "images/tools/");
var ALPHA_ON = 1.0;
var ALPHA_OFF = 0.7;
var COLOR_ON = { red: 128, green: 0, blue: 0 };
var COLOR_OFF = { red: 128, green: 128, blue: 128 };
var COLOR_TOOL_BAR = { red: 0, green: 0, blue: 0 };

var toolBar = null;
var recordIcon;
var playIcon;
var playLoopIcon;
var saveIcon;
var loadIcon;
var spacing;
var timerOffset;
var timer = null;
var slider = null;

setupToolBar();
setupTimer();

var watchStop = false;

function setupToolBar() {
    if (toolBar !== null) {
        print("Multiple calls to Recorder.js:setupToolBar()");
        return;
    }
    Tool.IMAGE_HEIGHT /= 2;
    Tool.IMAGE_WIDTH /= 2;

    toolBar = new ToolBar(0, 0, ToolBar.HORIZONTAL);

    toolBar.onMove = onToolbarMove;

    toolBar.setBack(COLOR_TOOL_BAR, ALPHA_OFF);

    recordIcon = toolBar.addTool({
        imageURL: TOOL_ICON_URL + "recording-record.svg",
        subImage: { x: 0, y: 0, width: Tool.IMAGE_WIDTH, height: Tool.IMAGE_HEIGHT },
        x: 0, y: 0,
        width: Tool.IMAGE_WIDTH,
        height: Tool.IMAGE_HEIGHT,
        alpha: Recording.isPlaying() ? ALPHA_OFF : ALPHA_ON,
        visible: true
    }, true, !Recording.isRecording());

    var playLoopWidthFactor = 1.65;
    playIcon = toolBar.addTool({
        imageURL: TOOL_ICON_URL + "play-pause.svg",
        width: playLoopWidthFactor * Tool.IMAGE_WIDTH,
        height: Tool.IMAGE_HEIGHT,
        alpha: (Recording.isRecording() || Recording.playerLength() === 0) ? ALPHA_OFF : ALPHA_ON,
        visible: true
    }, false);

    playLoopIcon = toolBar.addTool({
        imageURL: TOOL_ICON_URL + "play-and-loop.svg",
        subImage: { x: 0, y: 0, width: playLoopWidthFactor * Tool.IMAGE_WIDTH, height: Tool.IMAGE_HEIGHT },
        width: playLoopWidthFactor * Tool.IMAGE_WIDTH,
        height: Tool.IMAGE_HEIGHT,
        alpha: (Recording.isRecording() || Recording.playerLength() === 0) ? ALPHA_OFF : ALPHA_ON,
        visible: true
    }, false);

    timerOffset = toolBar.width + ToolBar.SPACING;
    spacing = toolBar.addSpacing(0);

    saveIcon = toolBar.addTool({
        imageURL: TOOL_ICON_URL + "recording-save.svg",
        width: Tool.IMAGE_WIDTH,
        height: Tool.IMAGE_HEIGHT,
        alpha: (Recording.isRecording() || Recording.isPlaying() || Recording.playerLength() === 0) ? ALPHA_OFF : ALPHA_ON,
        visible: true
    }, false);

    loadIcon = toolBar.addTool({
        imageURL: TOOL_ICON_URL + "recording-upload.svg",
        width: Tool.IMAGE_WIDTH,
        height: Tool.IMAGE_HEIGHT,
        alpha: (Recording.isRecording() || Recording.isPlaying()) ? ALPHA_OFF : ALPHA_ON,
        visible: true
    }, false);
}

function setupTimer() {
    timer = Overlays.addOverlay("text", {
        font: { size: 15 },
        text: (0.00).toFixed(3),
        backgroundColor: COLOR_OFF,
        x: 0, y: 0,
        width: 200, height: 25,
        leftMargin: 5, topMargin: 3,
        alpha: 1.0, backgroundAlpha: 1.0,
        visible: true
    });

    slider = { x: 0, y: 0,
        w: 200, h: 20,
        pos: 0.0 // 0.0 <= pos <= 1.0
    };
    slider.background = Overlays.addOverlay("text", {
        text: "",
        backgroundColor: { red: 128, green: 128, blue: 128 },
        x: slider.x, y: slider.y,
        width: slider.w,
        height: slider.h,
        alpha: 1.0,
        backgroundAlpha: 1.0,
        visible: true
    });
    slider.foreground = Overlays.addOverlay("text", {
        text: "",
        backgroundColor: { red: 200, green: 200, blue: 200 },
        x: slider.x, y: slider.y,
        width: slider.pos * slider.w,
        height: slider.h,
        alpha: 1.0,
        backgroundAlpha: 1.0,
        visible: true
    });
}

function onToolbarMove(newX, newY, deltaX, deltaY) {
    Overlays.editOverlay(timer, {
        x: newX + timerOffset - ToolBar.SPACING,
        y: newY
    });

    slider.x = newX - ToolBar.SPACING;
    slider.y = newY - slider.h - ToolBar.SPACING;

    Overlays.editOverlay(slider.background, {
        x: slider.x,
        y: slider.y
    });
    Overlays.editOverlay(slider.foreground, {
        x: slider.x,
        y: slider.y
    });
}

function updateTimer() {
    var text = "";
    if (Recording.isRecording()) {
        text = formatTime(Recording.recorderElapsed());
    } else {
        text = formatTime(Recording.playerElapsed()) + " / " + formatTime(Recording.playerLength());
    }

    var timerWidth = text.length * 8 + ((Recording.isRecording()) ? 15 : 0);

    Overlays.editOverlay(timer, {
        text: text,
        width: timerWidth
    });
    toolBar.changeSpacing(timerWidth + ToolBar.SPACING, spacing);

    if (Recording.isRecording()) {
        slider.pos = 1.0;
    } else if (Recording.playerLength() > 0) {
        slider.pos = Recording.playerElapsed() / Recording.playerLength();
    }

    Overlays.editOverlay(slider.foreground, {
        width: slider.pos * slider.w
    });
}

function formatTime(time) {
    var MIN_PER_HOUR = 60;
    var SEC_PER_MIN = 60;
    var MSEC_DIGITS = 3;

    var hours = Math.floor(time / (SEC_PER_MIN * MIN_PER_HOUR));
    time -= hours * (SEC_PER_MIN * MIN_PER_HOUR);

    var minutes = Math.floor(time / (SEC_PER_MIN));
    time -= minutes * (SEC_PER_MIN);

    var seconds = time;

    var text = "";
    text += (hours > 0) ? hours + ":" : "";
    text += (minutes > 0) ? ((minutes < 10 && text !== "") ? "0" : "") + minutes + ":" : "";
    text += ((seconds < 10 && text !== "") ? "0" : "") + seconds.toFixed(MSEC_DIGITS);
    return text;
}

function moveUI() {
    var relative = { x: 70, y: 40 };
    toolBar.move(relative.x, windowDimensions.y - relative.y);
}

function mousePressEvent(event) {
    var clickedOverlay = Overlays.getOverlayAtPoint({ x: event.x, y: event.y });

    if (recordIcon === toolBar.clicked(clickedOverlay, false) && !Recording.isPlaying()) {
        if (!Recording.isRecording()) {
            Recording.startRecording();
            toolBar.selectTool(recordIcon, false);
            toolBar.setAlpha(ALPHA_OFF, playIcon);
            toolBar.setAlpha(ALPHA_OFF, playLoopIcon);
            toolBar.setAlpha(ALPHA_OFF, saveIcon);
            toolBar.setAlpha(ALPHA_OFF, loadIcon);
        } else {
            Recording.stopRecording();
            toolBar.selectTool(recordIcon, true);
            setDefaultPlayerOptions();
            // Plays the recording at the same spot as you recorded it
            Recording.setPlayFromCurrentLocation(false);
            Recording.setPlayerTime(0);
            Recording.loadLastRecording();
            toolBar.setAlpha(ALPHA_ON, playIcon);
            toolBar.setAlpha(ALPHA_ON, playLoopIcon);
            toolBar.setAlpha(ALPHA_ON, saveIcon);
            toolBar.setAlpha(ALPHA_ON, loadIcon);
        }
    } else if (playIcon === toolBar.clicked(clickedOverlay) && !Recording.isRecording()) {
        if (Recording.isPlaying()) {
            Recording.pausePlayer();
            toolBar.setAlpha(ALPHA_ON, recordIcon);
            toolBar.setAlpha(ALPHA_ON, saveIcon);
            toolBar.setAlpha(ALPHA_ON, loadIcon);
        } else if (Recording.playerLength() > 0) {
            Recording.setPlayerLoop(false);
            Recording.startPlaying();
            toolBar.setAlpha(ALPHA_OFF, recordIcon);
            toolBar.setAlpha(ALPHA_OFF, saveIcon);
            toolBar.setAlpha(ALPHA_OFF, loadIcon);
            watchStop = true;
        }
    } else if (playLoopIcon === toolBar.clicked(clickedOverlay) && !Recording.isRecording()) {
        if (Recording.isPlaying()) {
            Recording.pausePlayer();
            toolBar.setAlpha(ALPHA_ON, recordIcon);
            toolBar.setAlpha(ALPHA_ON, saveIcon);
            toolBar.setAlpha(ALPHA_ON, loadIcon);
        } else if (Recording.playerLength() > 0) {
            Recording.setPlayerLoop(true);
            Recording.startPlaying();
            toolBar.setAlpha(ALPHA_OFF, recordIcon);
            toolBar.setAlpha(ALPHA_OFF, saveIcon);
            toolBar.setAlpha(ALPHA_OFF, loadIcon);
        }
    } else if (saveIcon === toolBar.clicked(clickedOverlay)) {
        if (!Recording.isRecording() && !Recording.isPlaying() && Recording.playerLength() !== 0) {
            recordingFile = Window.save("Save recording to file", ".", "Recordings (*.hfr)");
            if (!(recordingFile === "null" || recordingFile === null || recordingFile === "")) {
                Recording.saveRecording(recordingFile);
            }
        }
    } else if (loadIcon === toolBar.clicked(clickedOverlay)) {
        if (!Recording.isRecording() && !Recording.isPlaying()) {
            recordingFile = Window.browse("Load recording from file", ".", "Recordings (*.hfr *.rec *.HFR *.REC)");
            if (!(recordingFile === "null" || recordingFile === null || recordingFile === "")) {
                Recording.loadRecording(recordingFile, function(success) {
                    if (success) {
                        setDefaultPlayerOptions();
                    } else {
                        print("Failed to load recording from " + recordingFile);
                    }
                });
            }
            if (Recording.playerLength() > 0) {
                toolBar.setAlpha(ALPHA_ON, playIcon);
                toolBar.setAlpha(ALPHA_ON, playLoopIcon);
                toolBar.setAlpha(ALPHA_ON, saveIcon);
            }
        }
    } else if (Recording.playerLength() > 0 &&
               slider.x < event.x && event.x < slider.x + slider.w &&
               slider.y < event.y && event.y < slider.y + slider.h) {
        isSliding = true;
        slider.pos = (event.x - slider.x) / slider.w;
        Recording.setPlayerTime(slider.pos * Recording.playerLength());
    }
}
var isSliding = false;

function mouseMoveEvent(event) {
    if (isSliding) {
        slider.pos = (event.x - slider.x) / slider.w;
        if (slider.pos < 0.0 || slider.pos > 1.0) {
            Recording.stopPlaying();
            slider.pos = 0.0;
        }
        Recording.setPlayerTime(slider.pos * Recording.playerLength());
    }
}

function mouseReleaseEvent(event) {
    isSliding = false;
}

function update() {
    var newDimensions = Controller.getViewportDimensions();
    if (windowDimensions.x !== newDimensions.x || windowDimensions.y !== newDimensions.y) {
        windowDimensions = newDimensions;
        moveUI();
    }

    updateTimer();

    if (watchStop && !Recording.isPlaying()) {
        watchStop = false;
        toolBar.setAlpha(ALPHA_ON, recordIcon);
        toolBar.setAlpha(ALPHA_ON, saveIcon);
        toolBar.setAlpha(ALPHA_ON, loadIcon);
    }
}

function scriptEnding() {
    if (Recording.isRecording()) {
        Recording.stopRecording();
    }
    if (Recording.isPlaying()) {
        Recording.stopPlaying();
    }
    toolBar.cleanup();
    Overlays.deleteOverlay(timer);
    Overlays.deleteOverlay(slider.background);
    Overlays.deleteOverlay(slider.foreground);
}

Controller.mousePressEvent.connect(mousePressEvent);
Controller.mouseMoveEvent.connect(mouseMoveEvent);
Controller.mouseReleaseEvent.connect(mouseReleaseEvent);
Script.update.connect(update);
Script.scriptEnding.connect(scriptEnding);

// Should be called last to put everything into position
moveUI();