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#pragma once

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "framelesshelpercore_global.h"
#if (QT_VERSION >= QT_VERSION_CHECK(6, 2, 0))
#include <QtGui/private/qtx11extras_p.h>
#else // (QT_VERSION >= QT_VERSION_CHECK(6, 2, 0))
#include <xcb/xcb.h>

using Display = struct _XDisplay;

QT_BEGIN_NAMESPACE

class FRAMELESSHELPER_CORE_API QX11Info
{
    Q_GADGET
    Q_DISABLE_COPY_MOVE(QX11Info)

public:
    enum class PeekOption
    {
        Default = 0x0000,
        FromCachedIndex = 0x0001
    };
    Q_ENUM(PeekOption)
    Q_DECLARE_FLAGS(PeekOptions, PeekOption)
    Q_FLAG(PeekOptions)

    [[nodiscard]] static bool isPlatformX11();

    [[nodiscard]] static int appDpiX(const int screen = -1);
    [[nodiscard]] static int appDpiY(const int screen = -1);

#if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
    [[nodiscard]] static unsigned long appRootWindow(const int screen = -1);
#else
    [[nodiscard]] static quint32 appRootWindow(const int screen = -1);
#endif
    [[nodiscard]] static int appScreen();

    [[nodiscard]] static quint32 appTime();
    [[nodiscard]] static quint32 appUserTime();

    static void setAppTime(const quint32 time);
    static void setAppUserTime(const quint32 time);

    [[nodiscard]] static quint32 getTimestamp();

    [[nodiscard]] static QByteArray nextStartupId();
    static void setNextStartupId(const QByteArray &id);

    [[nodiscard]] static Display *display();
    [[nodiscard]] static xcb_connection_t *connection();

    [[nodiscard]] static bool isCompositingManagerRunning(const int screen = -1);

    [[nodiscard]] static qint32 generatePeekerId();
    [[nodiscard]] static bool removePeekerId(const qint32 peekerId);

    using PeekerCallback = bool(*)(xcb_generic_event_t *, void *);
    [[nodiscard]] static bool peekEventQueue(PeekerCallback peeker, void *peekerData = nullptr,
                               const PeekOptions option = PeekOption::Default, const qint32 peekerId = -1);

private:
    explicit QX11Info();
    ~QX11Info();
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QX11Info::PeekOptions)

QT_END_NAMESPACE

#endif // (QT_VERSION >= QT_VERSION_CHECK(6, 2, 0))