/*
*  Copyright 2016  Smith AR <audoban@openmailbox.org>
*                  Michail Vourlakos <mvourlakos@gmail.com>
*
*  This file is part of Latte-Dock
*
*  Latte-Dock is free software; you can redistribute it and/or
*  modify it under the terms of the GNU General Public License as
*  published by the Free Software Foundation; either version 2 of
*  the License, or (at your option) any later version.
*
*  Latte-Dock is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef WAYLANDINTERFACE_H
#define WAYLANDINTERFACE_H

// local
#include <config-latte.h>
#include "abstractwindowinterface.h"
#include "windowinfowrap.h"

// Qt
#include <QMap>
#include <QObject>
#include <QSignalMapper>

// KDE
#include <KWayland/Client/registry.h>
#include <KWayland/Client/connection_thread.h>
#include <KWayland/Client/plasmawindowmanagement.h>
#include <KWayland/Client/plasmashell.h>
#include <KWayland/Client/surface.h>
#include <KWindowInfo>
#include <KWindowEffects>


namespace Latte {
class Corona;
namespace Private {
//! this class is used to create the struts inside wayland
class GhostWindow;
}
}

namespace Latte {
namespace WindowSystem {

class WaylandInterface : public AbstractWindowInterface
{
    Q_OBJECT

public:
    explicit WaylandInterface(QObject *parent = nullptr);
    ~WaylandInterface() override;

    void setViewExtraFlags(QWindow &view) override;
    void setViewStruts(QWindow &view, const QRect &rect
                       , Plasma::Types::Location location) override;
    void setWindowOnActivities(QWindow &view, const QStringList &activities) override;

    void removeViewStruts(QWindow &view) const override;

    WindowId activeWindow() const override;
    WindowInfoWrap requestInfo(WindowId wid) const override;
    WindowInfoWrap requestInfoActive() const override;

    void setKeepAbove(const QDialog &dialog, bool above = true) const override;
    void skipTaskBar(const QDialog &dialog) const override;
    void slideWindow(QWindow &view, Slide location) const override;
    void enableBlurBehind(QWindow &view) const override;

    void releaseMouseEventFor(WindowId wid) const override;

    void requestActivate(WindowId wid) const override;
    void requestClose(WindowId wid) const override;
    void requestMoveWindow(WindowId wid, QPoint from) const override;
    void requestToggleIsOnAllDesktops(WindowId wid) const override;
    void requestToggleKeepAbove(WindowId wid) const override;
    void requestToggleMinimized(WindowId wid) const override;
    void requestToggleMaximized(WindowId wid) const override;

    bool windowCanBeDragged(WindowId wid) const override;
    bool windowCanBeMaximized(WindowId wid) const override;

    QIcon iconFor(WindowId wid) const;
    WindowId winIdFor(QString appId, QRect geometry) const override;
    AppData appDataFor(WindowId wid) const override;

    void setEdgeStateFor(QWindow *view, bool active) const override;

    void switchToNextVirtualDesktop() const override;
    void switchToPreviousVirtualDesktop() const override;

    void registerIgnoredWindow(WindowId wid) override;
    void unregisterIgnoredWindow(WindowId wid) override;

    void initWindowManagement(KWayland::Client::PlasmaWindowManagement *windowManagement);

#if KF5_VERSION_MINOR >= 52
    //! VirtualDesktopsSupport
    void initVirtualDesktopManagement(KWayland::Client::PlasmaVirtualDesktopManagement *virtualDesktopManagement);
#endif

private:
    void init();
    bool isValidWindow(const KWayland::Client::PlasmaWindow *w) const;
    bool isPlasmaDesktop(const KWayland::Client::PlasmaWindow *w) const;
    void windowCreatedProxy(KWayland::Client::PlasmaWindow *w);
    KWayland::Client::PlasmaWindow *windowFor(WindowId wid) const;
    KWayland::Client::PlasmaShell *waylandCoronaInterface() const;

#if KF5_VERSION_MINOR >= 52
    //! VirtualDesktopsSupport
    void setCurrentDesktop(QString desktop);
    void addDesktop(const QString &id, quint32 position);
#endif

private:
    QSignalMapper *mapper{nullptr};

    friend class Private::GhostWindow;
    mutable QMap<WindowId, Private::GhostWindow *> m_ghostWindows;

    KWayland::Client::PlasmaWindowManagement *m_windowManagement{nullptr};

#if KF5_VERSION_MINOR >= 52
    //! VirtualDesktopsSupport
    KWayland::Client::PlasmaVirtualDesktopManagement *m_virtualDesktopManagement{nullptr};
    QStringList m_desktops;
#endif

    Latte::Corona *m_corona{nullptr};
};

}
}

#endif // WAYLANDINTERFACE_H