/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) Statoil ASA
// 
//  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 "RivHexGridIntersectionTools.h"

#include "cafPdmPointer.h"

#include "cvfArray.h"
#include "cvfBase.h"
#include "cvfObject.h"
#include "cvfVector3.h"

#include <vector>

class RimIntersectionBox;

namespace cvf
{
    class ScalarMapper;
    class DrawableGeo;
}


class RivIntersectionBoxGeometryGenerator : public cvf::Object
{
public:
    RivIntersectionBoxGeometryGenerator(RimIntersectionBox* intersectionBox,
                                        const RivIntersectionHexGridInterface* grid);

    ~RivIntersectionBoxGeometryGenerator() override;

    bool                                             isAnyGeometryPresent() const;
                                                     
    // Generate geometry                             
    cvf::ref<cvf::DrawableGeo>                       generateSurface();
    cvf::ref<cvf::DrawableGeo>                       createMeshDrawable();

    // Mapping between cells and geometry
    const std::vector<size_t>&                       triangleToCellIndex() const;
    const std::vector<RivIntersectionVertexWeights>& triangleVxToCellCornerInterpolationWeights() const;
    const cvf::Vec3fArray*                           triangleVxes() const;

    RimIntersectionBox*                              intersectionBox() const;

private:
    void                                            calculateArrays();

    cvf::cref<RivIntersectionHexGridInterface>      m_hexGrid;

    // Output arrays
    cvf::ref<cvf::Vec3fArray>                       m_triangleVxes;
    cvf::ref<cvf::Vec3fArray>                       m_cellBorderLineVxes;
    std::vector<size_t>                             m_triangleToCellIdxMap;
    std::vector<RivIntersectionVertexWeights>       m_triVxToCellCornerWeights;

    RimIntersectionBox*                             m_intersectionBoxDefinition;
};