/*
 * 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 2.15
import QtQml 2.12
import QtQuick.Controls 2.5
import QtQuick.Layouts 1.12
import AppControls2 1.0 as AppControls2
import org.ukui.menu.core 1.0

Item {
    property string title: ""
    property string idSelect: ""
    signal labelItemClicked()
    signal openFolderPageSignal(string folderId, string folderName);

    function labelSelection(labelId) {
        appListView.view.positionViewAtIndex(appListView.model.getLabelIndex(labelId), ListView.Beginning)
    }

    function resetListFocus() {
        appListView.listFocus = true;
    }

    AppListView {
        id: appListView
        anchors.fill: parent

        model: modelManager.getAppModel()
        delegate: Component {
            Loader {
                id: loaderView
                focus: true
                width: ListView.view ? ListView.view.width : 0
                height: appListView.itemHeight
                property int index: model.index
                property int type: model.type
                property string id: model.id
                property string name: model.name
                property string icon: model.icon
                property int toTop: model.top
                property bool recentInstall: model.recentInstall
                sourceComponent: {
                    if (type === DataType.Normal) {
                        return appItemComponent;
                    }
                    if (type === DataType.Folder) {
                        return folderItemComponent;
                    }
                    if (type === DataType.Label) {
                        return labelItemComponent;
                    }
                }
            }
        }
    }

    Component {
        id: appItemComponent
        Item {
            id: appItemBase
            AppControls2.AppItem {
                id: appItem
                focus: true
                width: appListView.view ? appListView.view.width : 0
                height: appListView.itemHeight
                acceptedButtons: Qt.LeftButton | Qt.RightButton
                Drag.active: drag.active
                Drag.hotSpot.x: width / 2
                Drag.hotSpot.y: height / 2
                onClicked: {
                    if (mouse.button === Qt.RightButton) {
                        appListView.model.openMenu(index);
                        return;
                    }
                    if (mouse.button === Qt.LeftButton) {
                        appManager.launchApp(id);
                        if (recentInstall) {
                            appManager.appLaunched(id);
                        }
                        return;
                    }
                }
                onPressAndHold: {
                    if (mouse.button === Qt.LeftButton) {
                        x = appItem.mapToItem(appListView,0,0).x;
                        y = appItem.mapToItem(appListView,0,0).y;
                        drag.target = appItem;
                        appItem.parent = appListView;
                        appItem.isSelect = true;
                    }
                }
                onReleased: {
                    idSelect = id;
                    Drag.drop();
                    drag.target = null;
                    appItem.parent = appItemBase;
                    x = 0;
                    y = 0;
                    appItem.isSelect = false;
                }
            }
            Keys.onPressed: {
                if (event.key === Qt.Key_Enter || event.key === Qt.Key_Return) {
                    appManager.launchApp(id);
                    if (recentInstall) {
                        appManager.appLaunched(id);
                    }
                }
            }
        }
    }

    Component {
        id: labelItemComponent
        AppControls2.LabelItem {
            focus: true;
            onClicked: labelItemClicked();
        }
    }

    Component {
        id: folderItemComponent
        DropArea {
            onEntered: {
                folderItem.isSelect = true;
            }
            onExited: {
                folderItem.isSelect = false;
            }
            onDropped: {
                folderItem.isSelect = false;
                if (id !== idSelect) {
                    appListView.model.addAppToFolder(idSelect, id);
                }
            }
            AppControls2.FolderItem {
                id: folderItem
                focus: true
                anchors.fill: parent
                acceptedButtons: Qt.LeftButton | Qt.RightButton
                onClicked: {
                    if (mouse.button === Qt.RightButton) {
                        appListView.model.openMenu(index);
                        return;
                    }
                    if (mouse.button === Qt.LeftButton) {
                        openFolderPageSignal(id, name);
                        return;
                    }
                }
                Keys.onPressed: {
                    if (event.key === Qt.Key_Enter || event.key === Qt.Key_Return) {
                        openFolderPageSignal(id, name);
                    }
                }
                Component.onCompleted: {
                    appListView.model.renameText.connect(toEditText);
                }
                Component.onDestruction: {
                    appListView.model.renameText.disconnect(toEditText);
                }

                function toEditText(idOfIndex){
                    if (id === idOfIndex) {
                        editStatus = true;
                    }
                }
            }
        }
    }
}