import QtQuick 2.12
import QtQuick.Controls 2.12
import QtQuick.Layouts 1.12
import "../components"

Item {
    id: page

    property var devices: []
    property var savedConfig: ({})
    property string resultText: ""
    property bool resultOk: false

    function reload() {
        devices = systemInfo.networkInfo()
        savedConfig = systemInfo.networkConfig()
        var names = []
        for (var i = 0; i < devices.length; ++i)
            names.push(devices[i].device)
        var prev = ifaceCombo.currentText
        if (savedConfig.iface)
            prev = savedConfig.iface
        ifaceCombo.model = names
        var idx = names.indexOf(prev)
        if (idx >= 0) ifaceCombo.currentIndex = idx
        if (savedConfig.mode) {
            staticSwitch.checked = savedConfig.mode === "static"
            addrField.text = savedConfig.address || ""
            prefixField.text = savedConfig.prefix ? String(savedConfig.prefix) : "24"
            gwField.text = savedConfig.gateway || ""
            dnsField.text = savedConfig.dns || ""
        } else {
            staticSwitch.checked = false
        }
    }

    function applyNow() {
        if (!ifaceCombo.currentText) {
            page.resultOk = false
            page.resultText = "Выберите интерфейс"
            return
        }
        var mode = staticSwitch.checked ? "static" : "dhcp"
        var r
        if (mode === "static") {
            r = systemInfo.applyNetwork(ifaceCombo.currentText, "static",
                                        addrField.text.trim(),
                                        parseInt(prefixField.text) || 24,
                                        gwField.text.trim(),
                                        dnsField.text.trim())
        } else {
            r = systemInfo.applyNetwork(ifaceCombo.currentText, "dhcp")
        }
        page.resultOk = r.ok === true
        page.resultText = r.ok ? "Настройки применены" : ("Ошибка: " + (r.error || "неизвестно"))
        reloadTimer.start()
    }

    Component.onCompleted: reload()

    Rectangle {
        anchors.fill: parent
        color: "#161628"
    }

    Timer {
        id: reloadTimer
        interval: 1500
        onTriggered: page.reload()
    }

    ScrollView {
        anchors.fill: parent
        clip: true
        contentWidth: availableWidth
        contentHeight: netColumn.implicitHeight + 16
        ScrollBar.vertical.policy: ScrollBar.AsNeeded

        ColumnLayout {
            id: netColumn
            width: page.width - 16
            x: 8
            y: 8
            spacing: 12

            RowLayout {
            Layout.fillWidth: true
            Button { text: "\u2190 Назад"; onClicked: page.StackView.view.pop() }
            Label {
                Layout.fillWidth: true
                text: "Сеть (Ethernet)"
                font.bold: true
                font.pixelSize: 16
                color: "#ffffff"
                horizontalAlignment: Text.AlignHCenter
            }
            Button { text: "\u21BB"; onClicked: page.reload() }
            }

        // ----- Current state -----
        Text {
            Layout.fillWidth: true
            visible: page.devices.length === 0
            text: "Ethernet-интерфейсы не найдены (или nmcli недоступен)."
            color: "#cccccc"
            wrapMode: Text.Wrap
        }

        Repeater {
            model: page.devices
            delegate: Rectangle {
                Layout.fillWidth: true
                Layout.preferredHeight: col.implicitHeight + 16
                radius: 6
                color: "#40222c58"
                border.color: "#80ffffff"
                border.width: 1

                ColumnLayout {
                    id: col
                    anchors.fill: parent
                    anchors.margins: 8
                    spacing: 2
                    Text {
                        text: modelData.device + "  (" + modelData.state + ")"
                        color: "#ffffff"
                        font.bold: true
                    }
                    Text {
                        text: "Соединение: " + (modelData.connection || "—")
                        color: "#cccccc"
                        font.pixelSize: 12
                    }
                    Text {
                        text: "IP: " + (modelData.addresses || "—")
                        color: "#cccccc"
                        font.pixelSize: 12
                    }
                    Text {
                        text: "Шлюз: " + (modelData.gateway || "—") + "   DNS: " + (modelData.dns || "—")
                        color: "#cccccc"
                        font.pixelSize: 12
                    }
                }
            }
        }

        Rectangle { Layout.fillWidth: true; height: 1; color: "#40ffffff" }

        // ----- Configuration form -----
        Text {
            Layout.fillWidth: true
            text: "Изменение настроек может разорвать соединение и сменить IP устройства."
            color: "#e0a020"
            font.pixelSize: 12
            wrapMode: Text.Wrap
        }

        RowLayout {
            Layout.fillWidth: true
            Text { text: "Интерфейс:"; color: "#ffffff"; Layout.preferredWidth: 120 }
            ComboBox {
                id: ifaceCombo
                Layout.fillWidth: true
                model: []
            }
        }

        RowLayout {
            Layout.fillWidth: true
            Text { text: "Статический IP:"; color: "#ffffff"; Layout.preferredWidth: 120 }
            Switch {
                id: staticSwitch
                checked: false
            }
            Text {
                text: staticSwitch.checked ? "Статический" : "DHCP (авто)"
                color: "#cccccc"
            }
            Item { Layout.fillWidth: true }
        }

        GridLayout {
            Layout.fillWidth: true
            columns: 2
            visible: staticSwitch.checked

            Text { text: "IP-адрес:"; color: "#ffffff" }
            TextField { id: addrField; Layout.fillWidth: true; placeholderText: "192.168.1.50" }

            Text { text: "Префикс:"; color: "#ffffff" }
            TextField { id: prefixField; Layout.fillWidth: true; text: "24"; inputMethodHints: Qt.ImhDigitsOnly }

            Text { text: "Шлюз:"; color: "#ffffff" }
            TextField { id: gwField; Layout.fillWidth: true; placeholderText: "192.168.1.1" }

            Text { text: "DNS:"; color: "#ffffff" }
            TextField { id: dnsField; Layout.fillWidth: true; placeholderText: "8.8.8.8, 1.1.1.1" }
        }

        RowLayout {
            Layout.fillWidth: true
            Button {
                text: "Применить"
                highlighted: true
                onClicked: confirmDialog.open()
            }
            Text {
                Layout.fillWidth: true
                text: page.resultText
                color: page.resultOk ? "#30c050" : "#e05050"
                wrapMode: Text.Wrap
            }
        }

            Item {
                Layout.fillWidth: true
                Layout.preferredHeight: 8
            }
        }
    }

    Dialog {
        id: confirmDialog
        modal: true
        title: "Применить настройки сети?"
        anchors.centerIn: parent
        standardButtons: Dialog.Ok | Dialog.Cancel
        Text {
            width: parent ? parent.width : 300
            text: "Соединение может прерваться. Продолжить?"
            color: "#ffffff"
            wrapMode: Text.Wrap
        }
        onAccepted: page.applyNow()
    }
}