#pragma once

#include <QObject>
#include <QPoint>

class QWindow;
namespace LayerShellQt { class Window; }

// Places a keyboard window as a free-floating overlay that never takes focus.
// On Wayland: a layer-shell surface anchored top-left, positioned via margins.
// On X11: a frameless, non-focusable, always-on-top tool window.
class FloatingWindow : public QObject
{
    Q_OBJECT
    Q_PROPERTY(QPoint position READ position WRITE setPosition NOTIFY positionChanged)

public:
    // Must be called before the window is shown for the first time.
    explicit FloatingWindow(QWindow *window, QObject *parent = nullptr);

    QPoint position() const { return m_position; }
    void setPosition(QPoint position);

    Q_INVOKABLE void moveBy(qreal dx, qreal dy);
    Q_INVOKABLE void show();
    Q_INVOKABLE void hide();

Q_SIGNALS:
    void positionChanged();

private:
    QPoint clamped(QPoint position) const;
    QPoint defaultPosition() const;
    void apply();

    QWindow *m_window;
    LayerShellQt::Window *m_layerSurface = nullptr;
    QPoint m_position;
};