import Quickshell
import Quickshell.Bluetooth
import Quickshell.Wayland
import Quickshell.Hyprland
import QtQuick
import QtMultimedia

PanelWindow {
    id: overlay
    anchors {
        top: true
        left: true
        right: true
        bottom: true
    }

    WlrLayershell.layer: WlrLayer.Overlay
    WlrLayershell.focusable: true
    WlrLayershell.keyboardFocus: WlrKeyboardFocus.Exclusive
    WlrLayershell.namespace: "deltarune-startup-overlay"

    color: "#000000"
    exclusionMode: ExclusionMode.Ignore
    aboveWindows: true
    focusable: true

    property string bluetoothTargetName: "JBL Tune 525BT"
    property int bluetoothTimeoutMs: 5000
    property bool waitingForBluetooth: true
    property bool animationLaunchScheduled: false
    property bool animationStarted: false

    function bluetoothModelCount() {
        if (!Bluetooth.devices)
            return 0;
        if (typeof Bluetooth.devices.count === "function")
            return Bluetooth.devices.count();
        if (Bluetooth.devices.count !== undefined)
            return Bluetooth.devices.count;
        if (Bluetooth.devices.length !== undefined)
            return Bluetooth.devices.length;
        return 0;
    }

    function bluetoothModelGet(index) {
        if (!Bluetooth.devices || index < 0 || index >= bluetoothModelCount())
            return null;
        if (Bluetooth.devices.get)
            return Bluetooth.devices.get(index);
        if (Bluetooth.devices.length !== undefined)
            return Bluetooth.devices[index];
        return null;
    }

    function bluetoothDeviceName(device) {
        if (!device)
            return "";
        if (device.name && device.name.length > 0)
            return String(device.name);
        if (device.deviceName && device.deviceName.length > 0)
            return String(device.deviceName);
        return "";
    }

    function findTargetBluetoothDevice() {
        for (var i = 0; i < bluetoothModelCount(); i++) {
            var device = bluetoothModelGet(i);
            if (bluetoothDeviceName(device) === bluetoothTargetName)
                return device;
        }
        return null;
    }

    function beginAnimation() {
        if (animationStarted || animationLaunchScheduled)
            return;
        waitingForBluetooth = false;
        bluetoothRetryTimer.stop();
        bluetoothTimeoutTimer.stop();
        animationLaunchScheduled = true;
        startupDelayTimer.restart();
    }

    function handlePrimaryAction() {
        if (!animationStarted)
            beginAnimation();
        else
            finishStartup();
    }

    function finishStartup() {
        if (player.playbackState !== MediaPlayer.StoppedState)
            player.stop();
        else
            Qt.quit();
    }

    HyprlandFocusGrab {
        active: true
        windows: [overlay]
    }

    FocusScope {
        id: overlayFocus
        anchors.fill: parent
        focus: true

        Component.onCompleted: overlayFocus.forceActiveFocus()
        onVisibleChanged: if (visible)
            overlayFocus.forceActiveFocus()
        onFocusChanged: if (focus)
            overlayFocus.forceActiveFocus()

        Keys.onReleased: function (event) {
            switch (event.key) {
            case Qt.Key_Z:
            case Qt.Key_Return:
            case Qt.Key_Enter:
                event.accepted = true;
                overlay.handlePrimaryAction();
                return;
            }
        }
    }

    Connections {
        target: Bluetooth.devices
        ignoreUnknownSignals: true

        function onCountChanged() {
            if (overlay.waitingForBluetooth)
                bluetoothRetryTimer.restart();
        }

        function onModelReset() {
            if (overlay.waitingForBluetooth)
                bluetoothRetryTimer.restart();
        }

        function onRowsInserted() {
            if (overlay.waitingForBluetooth)
                bluetoothRetryTimer.restart();
        }
    }

    MediaPlayer {
        id: player
        source: "deltarune.webm" // Local file or URL
        autoPlay: false
        videoOutput: videoOutput
        playbackRate: 1
        audioOutput: AudioOutput {}
        onPlaybackStateChanged: a => {
            if (player.playbackState === MediaPlayer.StoppedState)
                overlay.finishStartup();
        }
    }

    Timer {
        id: startupDelayTimer
        interval: 1000
        repeat: false
        onTriggered: {
            overlay.animationLaunchScheduled = false;
            overlay.animationStarted = true;
            player.play();
        }
    }

    Timer {
        id: bluetoothRetryTimer
        interval: 250
        running: true
        repeat: true
        onTriggered: {
            if (!overlay.waitingForBluetooth) {
                stop();
                return;
            }

            const device = overlay.findTargetBluetoothDevice();
            if (!device)
                return;

            if (device.connected) {
                overlay.beginAnimation();
                return;
            }

            device.connect();
        }
    }

    Timer {
        id: bluetoothTimeoutTimer
        interval: overlay.bluetoothTimeoutMs
        running: true
        repeat: false
        onTriggered: overlay.beginAnimation()
    }

    VideoOutput {
        id: videoOutput
        anchors.fill: parent
    }

    Text {
        visible: overlay.waitingForBluetooth
        anchors.horizontalCenter: parent.horizontalCenter
        anchors.verticalCenter: parent.verticalCenter
        color: "#ffffff"
        font.family: "Determination Mono"
        font.pixelSize: 28
        text: "CONNECTING TO " + overlay.bluetoothTargetName.toUpperCase()
        z: 1
    }

    Text {
        visible: !overlay.animationStarted
        anchors.horizontalCenter: parent.horizontalCenter
        anchors.bottom: parent.bottom
        anchors.bottomMargin: 56
        color: "#ffffff"
        font.family: "Determination Mono"
        font.pixelSize: 28
        text: overlay.waitingForBluetooth ? "PRESS Z OR ENTER TO SKIP WAIT" : "STARTING..."
        z: 1
    }

    MouseArea {
        anchors.fill: parent
        acceptedButtons: Qt.NoButton
        hoverEnabled: true
        cursorShape: Qt.BlankCursor
    }
}