/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2015-     Statoil ASA
//  Copyright (C) 2015-     Ceetron Solutions AS
//
//  ResInsight 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 3 of the License, or
//  (at your option) any later version.
//
//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#pragma once

#include "cafPdmPointer.h"
#include "cvfStructGrid.h"

#include <QObject>
#include <QPointer>

class RicDefaultPickEventHandler;
class Ric3dViewPickEventHandler;
class RimEclipseView;
class RimGeoMechView;
class RimExtrudedCurveIntersection;
class Rim3dView;
class RiuViewer;
class RivReservoirSurfaceIntersectionSourceInfo;
class RivBoxIntersectionSourceInfo;
class RivExtrudedCurveIntersectionSourceInfo;
class RiuPickItemInfo;
class RimIntersectionResultDefinition;

class QMouseEvent;

namespace caf
{
class PdmObject;
class CmdFeatureMenuBuilder;
} // namespace caf

namespace cvf
{
class HitItemCollection;
class Part;
} // namespace cvf

class RiuViewerCommands : public QObject
{
    Q_OBJECT

public:
    explicit RiuViewerCommands( RiuViewer* ownerViewer );
    ~RiuViewerCommands() override;

    void setOwnerView( Rim3dView* owner );

    void displayContextMenu( QMouseEvent* event );
    void handlePickAction( int winPosX, int winPosY, Qt::KeyboardModifiers keyboardModifiers );

    static void setPickEventHandler( Ric3dViewPickEventHandler* pickEventHandler );
    static void removePickEventHandlerIfActive( Ric3dViewPickEventHandler* pickEventHandler );

    cvf::Vec3d lastPickPositionInDomainCoords() const;
    bool       isCurrentPickInComparisonView() const;

    static void findFirstItems( Rim3dView*                          mainOrComparisonView,
                                const std::vector<RiuPickItemInfo>& pickItemInfos,
                                size_t*                             indexToFirstNoneNncItem,
                                size_t*                             indexToNncItemNearFirsItem );
    static void findCellAndGridIndex( Rim3dView*                       mainOrComparisonView,
                                      RimIntersectionResultDefinition* sepInterResDef,
                                      size_t                           globalCellIndex,
                                      size_t*                          cellIndex,
                                      size_t*                          gridIndex );

private:
    void ijkFromCellIndex( Rim3dView* mainOrComparisonView, size_t gridIdx, size_t cellIndex, size_t* i, size_t* j, size_t* k );

    bool handleOverlayItemPicking( int winPosX, int winPosY );
    void handleTextPicking( int winPosX, int winPosY, cvf::HitItemCollection* hitItems );

    void addCompareToViewMenu( caf::CmdFeatureMenuBuilder* menuBuilder );

    static void addDefaultPickEventHandler( RicDefaultPickEventHandler* pickEventHandler );
    static void removeDefaultPickEventHandler( RicDefaultPickEventHandler* pickEventHandler );

private:
    size_t                             m_currentGridIdx;
    size_t                             m_currentCellIndex;
    cvf::StructGridInterface::FaceType m_currentFaceIndex;
    cvf::Vec3d                         m_currentPickPositionInDomainCoords;
    bool                               m_isCurrentPickInComparisonView;
    caf::PdmPointer<Rim3dView>         m_reservoirView;
    QPointer<RiuViewer>                m_viewer;

    static Ric3dViewPickEventHandler*               sm_overridingPickHandler;
    static std::vector<RicDefaultPickEventHandler*> sm_defaultPickEventHandlers;
};