/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2018-     Equinor 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 "cvfDrawableGeo.h"
#include "cvfObject.h"
#include "cvfVector3.h"

#include "cafPdmPointer.h"

#include <gsl/gsl>

#include <vector>

namespace caf
{
class DisplayCoordTransform;
}

namespace cvf
{
class BoundingBox;
}

class RigWellPath;
class RimWellPath;
class Rim3dWellLogCurve;

class Riv3dWellLogCurveGeometryGenerator : public cvf::Object
{
public:
    using PointValuePair = std::pair<cvf::Vec3d, double>;
    Riv3dWellLogCurveGeometryGenerator( RimWellPath* wellPath );

    void createCurveDrawables( gsl::not_null<const caf::DisplayCoordTransform*> displayCoordTransform,
                               const cvf::BoundingBox&                          wellPathClipBoundingBox,
                               gsl::not_null<const Rim3dWellLogCurve*>          wellLogCurve,
                               double                                           planeOffsetFromWellPathCenter,
                               double                                           planeWidth,
                               const std::vector<cvf::Vec3d>&                   drawSurfaceVertices,
                               int                                              currentTimeStep );

    void clearCurvePointsAndGeometry();

    const RigWellPath* wellPathGeometry() const;

    cvf::ref<cvf::DrawableGeo> curveDrawable();

    bool findClosestPointOnCurve( const cvf::Vec3d& globalIntersection,
                                  cvf::Vec3d*       closestPoint,
                                  double*           measuredDepthAtPoint,
                                  double*           valueAtClosestPoint ) const;

private:
    void        createNewVerticesAlongTriangleEdges( const std::vector<cvf::Vec3d>& drawSurfaceVertices );
    static void createNewVerticesAlongSegment( const cvf::Vec3d&              ptStart,
                                               const cvf::Vec3d&              ptEnd,
                                               const std::vector<cvf::Vec3d>& drawSurfaceVertices,
                                               std::vector<cvf::Vec3d>*       extraVertices );

    static std::vector<cvf::Vec3d> projectVerticesOntoTriangles( const std::vector<cvf::Vec3d>& originalVertices,
                                                                 const std::vector<cvf::Vec3d>& drawSurfaceVertices );
    static cvf::Vec3d              projectPointOntoTriangle( const cvf::Vec3d& point,
                                                             const cvf::Vec3d& triangleVertex1,
                                                             const cvf::Vec3d& triangleVertex2,
                                                             const cvf::Vec3d& triangleVertex3,
                                                             bool*             wasInsideTriangle );
    caf::PdmPointer<RimWellPath>   m_wellPath;
    double                         m_planeWidth;

    cvf::ref<cvf::DrawableGeo> m_curveDrawable;
    std::vector<cvf::Vec3d>    m_curveVertices;

    std::vector<double> m_curveMeasuredDepths;
    std::vector<double> m_curveValues;
};