import QtQuick
import Quickshell
import Quickshell.Io
import "." as M

M.HoverPanel {
    id: menuWindow

    contentWidth: 250
    panelNamespace: "nova-bluetooth"

    onVisibleChanged: if (visible)
        scanner.running = true

    readonly property bool _busy: powerProc.running || toggleProc.running

    property var _devices: []
    property bool _btEnabled: true

    property Process _scanner: Process {
        id: scanner
        running: false
        command: ["sh", "-c", "bluetoothctl show 2>/dev/null | awk '/Powered:/{print $2; exit}';" + "echo '---DEVICES---';" + "bluetoothctl devices Paired 2>/dev/null | while read -r _ mac name; do " + "info=$(bluetoothctl info \"$mac\" 2>/dev/null); " + "conn=$(echo \"$info\" | grep -c 'Connected: yes'); " + "bat=$(echo \"$info\" | awk -F'[(): ]' '/Battery Percentage/{for(i=1;i<=NF;i++) if($i+0==$i && $i!=\"\") print $i}'); " + "echo \"$mac:$conn:${bat:-}:$name\"; " + "done"]
        stdout: StdioCollector {
            onStreamFinished: {
                const sections = text.split("---DEVICES---");
                menuWindow._btEnabled = (sections[0] || "").trim() === "yes";

                const devs = [];
                for (const line of (sections[1] || "").trim().split("\n")) {
                    if (!line)
                        continue;
                    const i1 = line.indexOf(":");
                    const i2 = line.indexOf(":", i1 + 1);
                    const i3 = line.indexOf(":", i2 + 1);
                    if (i3 < 0)
                        continue;
                    devs.push({
                        "mac": line.slice(0, i1),
                        "connected": line.slice(i1 + 1, i2) === "1",
                        "battery": parseInt(line.slice(i2 + 1, i3)) || -1,
                        "name": line.slice(i3 + 1)
                    });
                }
                devs.sort((a, b) => {
                    if (a.connected !== b.connected)
                        return a.connected ? -1 : 1;
                    return a.name.localeCompare(b.name);
                });
                menuWindow._devices = devs;
            }
        }
    }

    property Process _powerProc: Process {
        id: powerProc
        property string _action: ""
        command: ["bluetoothctl", "power", _action]
        onRunningChanged: if (!running)
            scanner.running = true
    }

    property Process _toggleProc: Process {
        id: toggleProc
        property string action: ""
        property string mac: ""
        command: ["bluetoothctl", action, mac]
        onRunningChanged: if (!running)
            scanner.running = true
    }

    // Bluetooth radio toggle header
    Item {
        width: menuWindow.contentWidth
        height: 36

        Rectangle {
            anchors.fill: parent
            anchors.leftMargin: 4
            anchors.rightMargin: 4
            color: btHeaderHover.hovered ? M.Theme.base02 : "transparent"
            radius: M.Theme.radius
        }

        Text {
            id: btHeaderIcon
            anchors.left: parent.left
            anchors.leftMargin: 12
            anchors.verticalCenter: parent.verticalCenter
            text: "\uF294"
            color: menuWindow._btEnabled ? menuWindow.accentColor : M.Theme.base04
            font.pixelSize: M.Theme.fontSize + 1
            font.family: M.Theme.iconFontFamily
        }

        Text {
            anchors.left: btHeaderIcon.right
            anchors.leftMargin: 8
            anchors.verticalCenter: parent.verticalCenter
            text: "Bluetooth"
            color: menuWindow._btEnabled ? M.Theme.base05 : M.Theme.base04
            font.pixelSize: M.Theme.fontSize
            font.family: M.Theme.fontFamily
            font.bold: true
        }

        Text {
            anchors.right: parent.right
            anchors.rightMargin: 12
            anchors.verticalCenter: parent.verticalCenter
            text: "\uF011"
            color: menuWindow._btEnabled ? menuWindow.accentColor : M.Theme.base04
            font.pixelSize: M.Theme.fontSize
            font.family: M.Theme.iconFontFamily
        }

        HoverHandler {
            id: btHeaderHover
            cursorShape: Qt.PointingHandCursor
        }
        TapHandler {
            onTapped: {
                powerProc._action = menuWindow._btEnabled ? "off" : "on";
                powerProc.running = true;
            }
        }
    }

    Rectangle {
        width: menuWindow.contentWidth - 16
        height: 1
        anchors.horizontalCenter: parent.horizontalCenter
        color: M.Theme.base03
    }

    Repeater {
        model: menuWindow._devices

        delegate: Item {
            id: entry
            required property var modelData
            required property int index

            width: menuWindow.contentWidth
            height: 32

            Rectangle {
                anchors.fill: parent
                anchors.leftMargin: 4
                anchors.rightMargin: 4
                color: entryHover.hovered ? M.Theme.base02 : "transparent"
                radius: M.Theme.radius
            }

            Text {
                id: btIcon
                anchors.left: parent.left
                anchors.leftMargin: 12
                anchors.verticalCenter: parent.verticalCenter
                text: "\uF294"
                color: entry.modelData.connected ? menuWindow.accentColor : M.Theme.base04
                font.pixelSize: M.Theme.fontSize + 1
                font.family: M.Theme.iconFontFamily
            }

            Text {
                anchors.left: btIcon.right
                anchors.leftMargin: 8
                anchors.right: batLabel.left
                anchors.rightMargin: 4
                anchors.verticalCenter: parent.verticalCenter
                text: entry.modelData.name
                color: entry.modelData.connected ? menuWindow.accentColor : M.Theme.base05
                font.pixelSize: M.Theme.fontSize
                font.family: M.Theme.fontFamily
                font.bold: entry.modelData.connected
                elide: Text.ElideRight
            }

            Text {
                id: batLabel
                anchors.right: parent.right
                anchors.rightMargin: 12
                anchors.verticalCenter: parent.verticalCenter
                text: entry.modelData.battery >= 0 ? entry.modelData.battery + "%" : ""
                color: M.Theme.base04
                font.pixelSize: M.Theme.fontSize - 1
                font.family: M.Theme.fontFamily
                width: entry.modelData.battery >= 0 ? implicitWidth : 0
            }

            HoverHandler {
                id: entryHover
                cursorShape: Qt.PointingHandCursor
            }
            TapHandler {
                onTapped: {
                    toggleProc.action = entry.modelData.connected ? "disconnect" : "connect";
                    toggleProc.mac = entry.modelData.mac;
                    toggleProc.running = true;
                }
            }
        }
    }

    Text {
        visible: menuWindow._devices.length === 0
        width: menuWindow.contentWidth
        height: 32
        horizontalAlignment: Text.AlignHCenter
        verticalAlignment: Text.AlignVCenter
        text: menuWindow._btEnabled ? "No paired devices" : "Bluetooth is off"
        color: M.Theme.base04
        font.pixelSize: M.Theme.fontSize
        font.family: M.Theme.fontFamily
    }
}