// SPDX-FileCopyrightText: 2018 Martin Kacej <m.kacej@atlas.sk>
// SPDX-FileCopyrightText: 2020 Dimitris Kardarakos <dimkard@posteo.net>
// SPDX-FileCopyrightText: 2021-2022 Devin Lin <espidev@gmail.com>
// SPDX-FileCopyrightText: 2023 Carl Schwan <carl@carlschwan.eu>
// SPDX-License-Identifier: GPL-2.0-or-later

import QtQuick 2.12
import QtQuick.Layouts 1.2
import QtQuick.Controls 2.12 as Controls

import org.kde.plasma.networkmanagement as PlasmaNM
import org.kde.kirigami as Kirigami
import org.kde.kcmutils as KCM
import org.kde.kirigamiaddons.formcard 1 as FormCard

import cellularnetworkkcm 1.0

KCM.SimpleKCM {
    id: root

    objectName: "mobileDataMain"

    leftPadding: 0
    rightPadding: 0
    topPadding: 0
    bottomPadding: 0

    PlasmaNM.Handler {
        id: nmHandler
    }

    PlasmaNM.AvailableDevices {
        id: availableDevices
    }

    PlasmaNM.EnabledConnections {
        id: enabledConnections
    }

    SimPage {
        id: simPage
        visible: false
    }

    Kirigami.PlaceholderMessage {
        id: noModem
        anchors.centerIn: parent
        width: parent.width - Kirigami.Units.gridUnit * 4

        visible: !enabledConnections.wwanHwEnabled || !availableDevices.modemDeviceAvailable || !kcm.modemFound
        icon.name: "auth-sim-missing"
        text: i18n("Modem not available")
    }

    ColumnLayout {
        spacing: 0
        width: root.width
        visible: !noModem.visible

        MessagesList {
            Layout.fillWidth: true
            Layout.margins: Kirigami.Units.largeSpacing
            model: kcm.messages
        }

        FormCard.FormCard {
            Layout.topMargin: Kirigami.Units.gridUnit

            FormCard.FormSwitchDelegate {
                id: mobileDataSwitch
                text: i18n("Mobile data")
                description: {
                    if (!kcm.modemFound) {
                        return "";
                    } else if (!kcm.selectedModem.hasSim) {
                        return i18n("No SIM is inserted.")
                    } if (!kcm.selectedModem.mobileDataSupported) {
                        return i18n("Mobile data is not available with this modem.")
                    } else if (kcm.selectedModem.needsAPNAdded) {
                        return i18n("An APN needs to be configured to have mobile data.");
                    } else {
                        return i18n("Whether mobile data is enabled.");
                    }
                }

                property bool manuallySet: false
                property bool shouldBeChecked: kcm.selectedModem && kcm.selectedModem.mobileDataEnabled
                onShouldBeCheckedChanged: {
                    checked = shouldBeChecked;
                }

                enabled: kcm.selectedModem && kcm.selectedModem.mobileDataSupported && !kcm.selectedModem.needsAPNAdded
                checked: shouldBeChecked

                onCheckedChanged: {
                    // prevent binding loops
                    if (manuallySet) {
                        manuallySet = false;
                        return;
                    }

                    if (kcm.selectedModem.mobileDataEnabled != checked) {
                        manuallySet = true;
                        kcm.selectedModem.mobileDataEnabled = checked;
                    }
                }
            }

            FormCard.FormDelegateSeparator { above: mobileDataSwitch; below: dataUsageButton }

            FormCard.FormButtonDelegate {
                id: dataUsageButton
                text: i18n("Data Usage")
                description: i18n("View data usage.")
                icon.name: "office-chart-bar"

                enabled: false
            }
        }

        FormCard.FormHeader {
            title: i18np("SIM", "SIMs", kcm.sims.count)
            visible: repeater.count > 0
        }

        FormCard.FormCard {
            visible: repeater.count > 0

            Repeater {
                id: repeater
                model: kcm.sims

                delegate: ColumnLayout {
                    Layout.fillWidth: true

                    FormCard.FormDelegateSeparator {
                        visible: model.index !== 0
                        opacity: (!(model.index && repeater.itemAt(model.index - 1).controlHovered) && !simDelegate.controlHovered) ? 0.5 : 0
                    }

                    FormCard.FormButtonDelegate {
                        id: simDelegate
                        text: i18n("SIM %1", modelData.displayId)
                        description: i18n("View SIM %1 details.", modelData.displayId)
                        icon.name: "auth-sim-symbolic"
                        onClicked: {
                            simPage.sim = modelData;
                            simPage.visible = true;
                            kcm.push(simPage);
                        }
                    }
                }
            }
        }
    }
}