/*
 *  SPDX-FileCopyrightText: 2019 Marco Martin <mart@kde.org>
 *  SPDX-FileCopyrightText: 2021 Devin Lin <devin@kde.org>
 *
 *   SPDX-License-Identifier: LGPL-2.0-or-later
 */

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Layouts 1.1

import org.kde.plasma.plasmoid 2.0
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.components 3.0 as PlasmaComponents

import org.kde.plasma.private.mobileshell 1.0 as MobileShell
import org.kde.phone.homescreen.default 1.0 as HomeScreenLib

MobileShell.HomeScreen {
    id: root
    width: 640
    height: 480

    onResetHomeScreenPosition: {
        homescreen.homeScreenState.animateGoToPageIndex(0, PlasmaCore.Units.longDuration);
        homescreen.homeScreenState.closeAppDrawer();
    }
    
    onHomeTriggered: {
        searchWidget.close();
    }
    
    property bool componentComplete: false
    
    Component.onCompleted: {
        HomeScreenLib.ApplicationListModel.loadApplications();
        HomeScreenLib.DesktopModel.load();
        
        // ensure the gestures work immediately on load
        forceActiveFocus();
    }
    
    Plasmoid.onActivated: {
        console.log("Triggered!", plasmoid.nativeInterface.showingDesktop)
        
        // there's a couple of steps:
        // - minimize windows
        // - open app drawer
        // - restore windows
        if (!plasmoid.nativeInterface.showingDesktop) {
            plasmoid.nativeInterface.showingDesktop = true;
        } else if (homescreen.homeScreenState.currentView === MobileShell.HomeScreenState.PageView) {
            homescreen.homeScreenState.openAppDrawer()
        } else {
            plasmoid.nativeInterface.showingDesktop = false
            homescreen.homeScreenState.closeAppDrawer()
        }
    }
    
    contentItem: Item {
        // homescreen component
        HomeScreen {
            id: homescreen
            anchors.fill: parent
            opacity: (1 - searchWidget.openFactor)
            
            // make the homescreen not interactable when task switcher or startup feedback is on
            interactive: !root.overlayShown
        }
        
        // search component
        MobileShell.KRunnerWidget {
            id: searchWidget
            anchors.fill: parent
            
            visible: openFactor > 0
            
            // close search component when task switcher is shown or hidden
            Connections {
                target: MobileShell.HomeScreenControls.taskSwitcher
                function onVisibleChanged() {
                    searchWidget.close();
                }
            }
        }
    }
    
    Connections {
        target: homescreen.homeScreenState
        
        function onSwipeDownGestureBegin() {
            searchWidget.startGesture();
        }
        function onSwipeDownGestureEnd() {
            searchWidget.endGesture();
        }
        function onSwipeDownGestureOffset(offset) {
            searchWidget.updateGestureOffset(-offset);
        }
    }
    
    // listen to app launch errors
    Connections {
        target: HomeScreenLib.ApplicationListModel
        function onLaunchError(msg) {
            MobileShell.HomeScreenControls.closeAppLaunchAnimation()
        }
    }
}