/*
 * Copyright (C) 2023, KylinSoft Co., Ltd.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */

import QtQuick 2.12
import AppUI 1.0 as AppUI
import AppControls2 1.0 as AppControls2
import org.ukui.menu.core 1.0

Item {
    id: root
    clip: true

    property int animationDuration: menuSetting.get("animationDuration")
    property var normalGeometry: mainWindow.normalScreenSize()
    property double transparency: mainWindow.transparency
    property bool onComlpeted: false

    Component.onCompleted: {
        mainWindow.fullScreenChanged.connect(enterFullScreen);
        mainWindow.beforeFullScreenExited.connect(exitFullScreen);
        menuSetting.changed.connect(updateAnimationDuration);
        onComlpeted = true;
    }

    function enterFullScreen() {
        if (mainWindow.isFullScreen) {
            normalHide.start();
            fullShow.start();
            backgroundMask.state = "fullScreen";
            if (root.transparency <= 0.6) {
                maskHide.start();
            }
        }
    }

    function exitFullScreen() {
        normalShow.start();
        fullHide.start();
        backgroundMask.state = "normalScreen";
        if (root.transparency <= 0.6) {
            maskShow.start();
        }
    }

    function updateAnimationDuration(key) {
        if (key === "animationDuration") {
            root.animationDuration = menuSetting.get("animationDuration");
        }
    }

    onTransparencyChanged: {
        if (transparency > 0.6) {
            backgroundMask.opacity = 1;
        }
    }

    AppControls2.StyleBackground {
        id: backgroundMask
        anchors.left: parent.left
        anchors.bottom: parent.bottom
        radius: 12

        Component.onCompleted: {
            state = mainWindow.isFullScreen ? "fullScreen" : "normalScreen"
        }
        onHeightChanged:  {
            if (root.transparency <= 0.6 && root.onComlpeted) {
                mainWindow.changeWindowBlurRegion(0, root.height - height, width, height)
            }
        }

        NumberAnimation {
            id: maskHide
            target: backgroundMask; property: "opacity"
            from: 1.0; to: 0;
            duration: root.animationDuration / 4; easing.type: Easing.InOutQuad
        }

        NumberAnimation {
            id: maskShow
            target: backgroundMask; property: "opacity"
            from: 0; to: 1.0;
            duration: root.animationDuration * 2; easing.type: Easing.InOutExpo
        }

        states: [
            State {
                name: "normalScreen"
                PropertyChanges { target: backgroundMask; height: root.normalGeometry.height; width: root.normalGeometry.width }
            },
            State {
                name: "fullScreen"
                PropertyChanges { target: backgroundMask; height: root.height; width: root.width }
                PropertyChanges { target: normalScreenLoader; anchors.margins: 8 }
                AnchorChanges { target: normalScreenLoader; anchors.bottom: root.bottom; anchors.left: root.left }
            }
        ]

        transitions: [
            Transition {
                to: "fullScreen"
                SequentialAnimation {
                    ScriptAction {
                        script: {
                            normalScreenLoader.anchors.left = root.left;
                            normalScreenLoader.anchors.bottom = root.bottom;
                            normalScreenLoader.anchors.margins = 8;
                            fullScreenLoader.active = true;
                        }
                    }
                    NumberAnimation { properties: "height,width"; duration: root.animationDuration; easing.type: Easing.InOutQuad }
                    ScriptAction {
                        script: {
                            normalScreenLoader.active = false;
                            mainWindow.enableWindowBlur(true);
                        }
                    }
                }
            },
            Transition {
                to: "normalScreen"
                SequentialAnimation {
                    ScriptAction {
                        script: {
                            normalScreenLoader.active = true;
                            mainWindow.enableWindowBlur(false);
                        }
                    }
                    NumberAnimation { properties: "height,width"; duration: root.animationDuration; easing.type: Easing.InOutQuad }
                    ScriptAction {
                        script: {
                            fullScreenLoader.active = false;
                            mainWindow.isFullScreen = false;
                        }
                    }
                }
            }
        ]
    }

    Loader {
        id: normalScreenLoader
        height: root.normalGeometry.height; width: root.normalGeometry.width
        anchors.bottom: root.bottom
        anchors.left: root.left
        sourceComponent: normalComponent
        NumberAnimation { id: normalShow; target: normalScreenLoader; properties: "opacity"; from: 0; to: 1; duration: root.animationDuration; easing.type: Easing.InQuint }
        NumberAnimation { id: normalHide; target: normalScreenLoader; properties: "opacity"; from: 1; to: 0; duration: root.animationDuration; easing.type: Easing.OutQuint }

        Component.onCompleted: {
            active = mainWindow.isFullScreen ? false : true;
            opacity = mainWindow.isFullScreen ? 0 : 1;
        }
    }

    Loader {
        id: fullScreenLoader
        anchors.fill: parent
        sourceComponent: fullSceenComponent
        NumberAnimation { id: fullShow; target: fullScreenLoader; properties: "opacity"; from: 0; to: 1; duration: root.animationDuration; easing.type: Easing.InQuint }
        NumberAnimation { id: fullHide; target: fullScreenLoader; properties: "opacity"; from: 1; to: 0; duration: root.animationDuration; easing.type: Easing.OutQuint }

        Component.onCompleted: {
            active = mainWindow.isFullScreen ? true : false;
            opacity = mainWindow.isFullScreen ? 1 : 0;
        }
    }

    Component {
        id: fullSceenComponent
        AppUI.FullScreenUI {}
    }

    Component {
        id: normalComponent
        AppUI.NormalUI {}
    }
}