/*
 * This file is part of Remote Support Desktop
 * https://gitlab.das-netzwerkteam.de/RemoteWebApp/remote-support-desktop
 * Copyright 2020, 2021 Daniel Teichmann <daniel.teichmann@das-netzwerkteam.de>
 * Copyright 2020, 2021 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * 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 2 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, write to the
 * Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * 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 2.9
import QtQuick.Window 2.2
import QtQuick.Extras 1.4
import QtQuick.Controls 2.2
import QtQuick.Controls.Styles 1.4
import QtQuick.Dialogs 1.2
import QtQuick.Controls.Material 2.3
import "scenes" as Scenes

/*!
  The main.qml file contains the window, with its header, sidebar, toast and main_content.
  */

ApplicationWindow {
    readonly property int normal_width: 650
    readonly property int normal_height: 500
    readonly property bool inPortrait: window.width < window.height

    minimumWidth: 400
    minimumHeight: 460

    width: normal_width
    height: normal_height

    id: window
    visible: true
    title: qsTr("Remote Support for your Desktop")

    onClosing: {
        mainqmladaptor.onCloseHandler();
    }

    function minimizeWindow() {
        showMinimized();
        console.log("Minimizing window now...");
    }

    function showWindow() {
        showNormal();
        console.log("Opening window now...");
    }

    function main_content_pop(item) {
        if(item) {
            if(item.search(main_content.currentItem.objectName) >= 0) return
        }
        return main_content.pop(item)
    }

    function main_content_push(item) {
        if(item) {
            if(item.search(main_content.currentItem.objectName) >= 0) return
        }
        return main_content.push(item)
    }

    function main_content_replace(item) {
        if(item) {
            if(item.search(main_content.currentItem.objectName) >= 0) return
        }
        return main_content.replace(item)
    }

    MessageDialog {
        id: message_dialog
        objectName: "message_dialog"
        title: qsTr("Remote Support for your Desktop")
        text: qsTr("You are not supposed to see this message.\nThis is a bug.")
        icon: StandardIcon.Critical
    }

    ToastManager {
        id: toast

        anchors.leftMargin: inPortrait ? 0 : sidebar_drawer.width
        anchors.left: parent.left
        anchors.right: parent.right
        anchors.bottom: parent.bottom
        anchors.top: parent.top
    }

    Connections {
        target: mainqmladaptor
        function onShowToastSignal(text, durationMs, type) {
            toast.show(text, durationMs, type)
        }
    }

    Connections {
        target: mainqmladaptor
        function onShowMessageDialogChanged(show) {
            message_dialog.visible = show
        }
    }

    StackView {
        id: main_content
        objectName: "main_content"

        anchors.top: top_menu_bar_frame.bottom
        anchors.right: parent.right
        anchors.bottom: parent.bottom
        anchors.left: parent.left
        anchors.leftMargin: !inPortrait ? sidebar_drawer.width : 0
        anchors.topMargin: 0

        // Our Application will start with the following content:
        initialItem: "scenes/Scene_placeholder.qml"

        replaceEnter: Transition {
            PropertyAnimation {
                property: "opacity"
                from: 0
                to:1
                duration: 100
            }
        }
        replaceExit: Transition {
            PropertyAnimation {
                property: "opacity"
                from: 1
                to:0
                duration: 100
            }
        }
    }

    Connections {
        target: mainqmladaptor
        function onMessageDialogTextChanged(text) {
            message_dialog.text = text
        }
    }

    Connections {
        target: mainqmladaptor
        function onMessageDialogTitleChanged(title) {
            message_dialog.title = title
        }
    }

    Connections {
        target: mainqmladaptor
        function onMessageDialogIconChanged(iconindex) {
            message_dialog.icon = iconindex
        }
    }

    /*!
      This is our sidebar (sidemenu) for navigation purposes.
      It will collapse if the window gets resized to a portrait format.
      Then it can be opened using the now visible button in the header
      or by swiping from left to right.
      main_content's leftMargin depends on sidebar_drawers's width
      We don't want them to overlap on different window heights und widths.
      */
    Drawer {
        id: sidebar_drawer
        objectName: "sidebar_drawer"

        y: top_menu_bar_frame.height
        width: !inPortrait ?
                   Math.min(300, Math.max(200, window.width * 0.333)) :
                   (window.width * 0.5)
        height: window.height - top_menu_bar_frame.height

        modal: inPortrait
        interactive: inPortrait
        position: inPortrait ? 0 : 1
        dragMargin: 1
        margins: -2
        visible: !inPortrait

        signal rwaHostSelected(string host_uuid)
        property bool rwaHostIsSelected: false

        ListView {
            id: sidebar_listview
            boundsBehavior: Flickable.StopAtBounds
            interactive: true
            clip: true
            anchors.fill: parent
            model: mainModel

            header: Rectangle {
                height: 50
                width: parent.width
                color: Material.background

                ComboBox {
                    id: server_chooser
                    objectName: "server_chooser"

                    padding: 0
                    width: parent.width
                    height: 56 - y
                    y: -6

                    model: mainqmladaptor.rwaHostModel
                    textRole: "alias"

                    onCurrentIndexChanged: {
                        var rwa_host = mainqmladaptor.rwaHostModel
                        if (rwa_host[currentIndex] !== undefined) {
                            sidebar_drawer.rwaHostSelected(rwa_host[currentIndex].uuid)
                            displayText = rwa_host[currentIndex].alias
                        }
                    }


                }
            }

            footer: ItemDelegate {
                id: footer
                text: "  " + qsTr("Settings")
                width: parent.width
                enabled: false

                onClicked: {
                    var scene_url = "scenes/Scene_placeholder.qml"
                    header_text.text = qsTr("Settings")
                    if (inPortrait) sidebar_drawer.close()

                    if (scene_url.search(main_content.currentItem.objectName) >= 0) return
                    main_content.replace(scene_url, StackView.Transition)
                }

                MenuSeparator {
                    parent: footer
                    width: parent.width
                    anchors.verticalCenter: parent.top
                }
            }

            VisualItemModel {
                id: mainModel

                ListItem {
                    text: " " + qsTr("Remote Control")
                    scene_url: "scenes/remote_control/Scene_remote_control.qml"
                    onListItemClick: {
                        header_text.text = qsTr("Allow remote control")
                        if (inPortrait) sidebar_drawer.close()

                        if (scene_url.search(main_content.currentItem.objectName) >= 0) return
                        main_content.replace(scene_url, StackView.Transition)
                    }

                    // Disabled till a RWAHost object is selected.
                    enabled: sidebar_drawer.rwaHostIsSelected
                }
                ListItem {
                    text: " " + qsTr("Remote View")
                    scene_url: "scenes/Scene_remote_view.qml"
                    onListItemClick: {
                        header_text.text = qsTr("Allow remote view")
                        if (inPortrait) sidebar_drawer.close()

                        if (scene_url.search(main_content.currentItem.objectName) >= 0) return
                        main_content.replace(scene_url, StackView.Transition)
                    }

                    // Disabled till a RWAHost object is selected.
                    //enabled: sidebar_drawer.rwaHostIsSelected

                    // But remote view is not implemented yet
                    enabled: false
                }
                ListItem {
                    text: " " + qsTr("Add RWA-Server")
                    scene_url: "scenes/add_rwahost_wizard/Scene_step_1.qml"
                    onListItemClick: {
                        header_text.text = qsTr("Server addition wizard")
                        if (inPortrait) sidebar_drawer.close()

                        if (scene_url.search(main_content.currentItem.objectName) >= 0) return
                        main_content.push(scene_url, StackView.ReplaceTransition)
                    }
                }
            }

            ScrollIndicator.vertical: ScrollIndicator { }
        }
    }

    // Set dark/light theme based on the slider setting
    Material.theme: inPortrait ? (theme_portrait.position < 1 ? Material.Light : Material.Dark)
                               : (theme_landscape.position < 1 ? Material.Light : Material.Dark)

    ToolBar {
        id: top_menu_bar_frame
        width: parent.width
        height: parent.height * 0.10

        background: Rectangle {
            color: parent.Material.background
            border.color: parent.Material.background
        }
        Material.background: "#0d5eaf"
        Material.foreground: "#ffffff"

        anchors.margins: 0
        anchors.left: parent.left
        anchors.top: parent.top

        Switch {
            id: theme_landscape
            width: 150
            implicitWidth: 100
            visible: !inPortrait
            parent: inPortrait ? sidebar_listview : top_menu_bar_frame

            height: parent.height
            anchors.margins: 10
            text: qsTr("Dark theme")
            anchors.left: parent.left
            anchors.verticalCenterOffset: 0
            anchors.leftMargin: 0
            anchors.verticalCenter: parent.verticalCenter

            /*!
              Here is the default setting for dark/light mode
              */
            checked: true

            onCheckedChanged: {
                theme_portrait.checked = checked
            }
        }

        Switch {
            id: theme_portrait
            visible: inPortrait
            parent: sidebar_listview

            height: 50
            width: parent.width

            anchors.bottom: parent.bottom
            text: qsTr("Dark theme")

            checked: theme_landscape.checked
            onCheckedChanged: {
                theme_landscape.checked = checked
            }
        }

        Label {
            id: header_text
            height: parent.height
            color: "white"
            text: qsTr("Allow Remote Control")
            font.pointSize: 20
            fontSizeMode: Text.Fit
            horizontalAlignment: Text.AlignRight
            verticalAlignment: Text.AlignVCenter
            anchors.left:       inPortrait ? burger_button.right : parent.left
            anchors.leftMargin: inPortrait ? 5 : theme_landscape.width
            anchors.right: parent.right
            anchors.rightMargin: 5
            anchors.verticalCenter: parent.verticalCenter
            padding: 5
        }

        Button {
            id: burger_button
            width: 50
            height: parent.height + 10
            visible: inPortrait

            text: "≡"
            checkable: false
            font.pointSize: 24
            flat: true
            anchors.left: parent.left
            anchors.leftMargin: 0
            anchors.verticalCenter: parent.verticalCenter
            enabled: !sidebar_drawer.opened

            onClicked: {
                sidebar_drawer.open()
                enabled: false
            }
        }
    }
}

/*##^## Designer {
    D{i:14;anchors_width:650}
}
 ##^##*/