/*
 *  Copyright 2019 Marco Martin <mart@kde.org>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License as
 *   published by the Free Software Foundation; either version 2 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 Library General Public License for more details
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

import QtQuick 2.12
import QtQuick.Layouts 1.1
import QtQuick.Controls 2.2 as Controls
import QtGraphicalEffects 1.0

import org.kde.plasma.plasmoid 2.0
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.draganddrop 2.0 as DragDrop

import "launcher" as Launcher

import org.kde.plasma.private.containmentlayoutmanager 1.0 as ContainmentLayoutManager 

Item {
    id: root
    width: 640
    height: 480

    property Item toolBox

    DragDrop.DropArea {
        anchors.fill: parent

        //TODO type safety?
        property Item appletsArea
        onDragEnter: {
            event.accept(event.proposedAction);
        }
        onDragMove: {
            appletsLayout.showPlaceHolderAt(
                Qt.rect(event.x - appletsLayout.defaultItemWidth / 2,
                event.y - appletsLayout.defaultItemHeight / 2,
                appletsLayout.defaultItemWidth,
                appletsLayout.defaultItemHeight)
            );
        }

        onDragLeave: {
            appletsLayout.hidePlaceHolder();
        }

        preventStealing: true

        onDrop: {
            plasmoid.processMimeData(event.mimeData,
                        event.x - appletsLayout.placeHolder.width / 2, event.y - appletsLayout.placeHolder.height / 2);
            event.accept(event.proposedAction);
            appletsLayout.hidePlaceHolder();
        }

Text {
    text:"Edit Mode"
    color: "white"
    visible: plasmoid.editMode
}
        Connections {
            target: plasmoid
            onEditModeChanged: {
                appletsLayout.editMode = plasmoid.editMode
                if (plasmoid.editMode) {
                    menuRepeater.freeLayout();
                } else {
                    menuRepeater.relayout();
                }
            }
        }

        Flickable {
            anchors.fill: parent
            contentWidth: width
            contentHeight: appletsLayout.height
            interactive: !plasmoid.editMode

            ContainmentLayoutManager.AppletsLayout {
                id: appletsLayout
                width: parent.width
                height: 500 + launcher.height
                configKey: width > height ? "ItemGeometries" : "ItemGeometriesVertical"
                containment: plasmoid
                editModeCondition: plasmoid.immutable
                        ? ContainmentLayoutManager.AppletsLayout.Manual
                        : ContainmentLayoutManager.AppletsLayout.AfterPressAndHold

                // Sets the containment in edit mode when we go in edit mode as well
                onEditModeChanged: plasmoid.editMode = editMode

                minimumItemWidth: units.gridUnit * 3
                minimumItemHeight: minimumItemWidth

                defaultItemWidth: units.gridUnit * 6
                defaultItemHeight: defaultItemWidth

                cellWidth: units.iconSizes.small
                cellHeight: cellWidth

                acceptsAppletCallback: function(applet, x, y) {
                    print("Applet: "+applet+" "+x+" "+y)
                    return true;
                }

                appletContainerComponent: ContainmentLayoutManager.BasicAppletContainer {
                    id: appletContainer
                    configOverlayComponent: ConfigOverlay {}
                    onEditModeChanged: {
                        if (editMode) {
                            plasmoid.editMode = true;
                        }
                    }
                }

                placeHolder: ContainmentLayoutManager.PlaceHolder {}

                Launcher.LauncherGrid {
                    id: launcher
                    anchors {
                        left: parent.left
                        right: parent.right
                        bottom: parent.bottom
                    }
                }
            }
        }
        Controls.Button {
            text: "load"
            onClicked: menuRepeater.model = plasmoid.nativeInterface.applicationListModel
        }
    }
}