/*
 * Copyright 2016 Konsulko Group
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// BUG: ValueChanged event is raised by sliders when you are moving the caret, should be raised only when you release it.
// TODO: Call mixer.setVolume(sliderName, Value) on value change
// TODO: Call mixer.getVolume(sliderName) on load

import QtQuick 2.6
import QtQuick.Layouts 1.1
import QtQuick.Controls 2.0
import AGL.Demo.Controls 1.0
import Mixer 1.0

ApplicationWindow {
    property Component volumeSlider

    id: root

    Mixer {
        id: mixer
        Component.onCompleted: {
            root.volumeSlider = Qt.createComponent("VolumeSlider.qml");
            if (root.VolumeSlider.status !== Component.Ready) {
                console.log("Failed to load the VolumeSlider.qml component: " + root.volumeSlider.errorString());
            }
            mixer.open(bindingAddress);
        }
        onRolesChanged: {
            // Remove existing sliders
            for(var i = sliders.children.length; i > 0 ; --i) {
                console.log("destroying: " + i);
                sliders.children[i-1].destroy();
            }

            // Add slider for each role
            for(var j = 0; j < mixer.roles.length; ++j) {
                addSlider(mixer.roles[j]);
            }
        }

        onVolumeChanged: {
            for(var i = 0; i < sliders.children.length ; i++) {
                console.log("Slider found: " + i);
                //if (sliders[i].role === name) {
                //    sliders[i].value = value;
                //}
            }
        }

        function addSlider(name) {
            var sld = root.volumeSlider.createObject(sliders);
            sld.role = name;
            mixer.getVolume(name); // Update volume
        }

        function deleteChilds(item) {
            for(var i = item.children.length; i > 0 ; i--) {
                deleteChilds(item.children[i-1]);
            }
            item.destroy();
        }
    }

    Label {
        id: title
        font.pixelSize: 48
        text: "Mixer"
        anchors.horizontalCenter: parent.horizontalCenter
    }

    ColumnLayout {
        id: sliders
        anchors.margins: 80
        anchors.top: title.bottom
        anchors.left: parent.left
        anchors.right: parent.right
    }
}