/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2017 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 "cvfBoundingBox.h"
#include "cvfVector3.h"

#include <QString>

#include <array>

class RigWellPath;
class RigMainGrid;
class RigEclipseCaseData;
struct HexIntersectionInfo;
struct WellPathCellIntersectionInfo;

namespace cvf
{
class StructGridInterface;
};

//==================================================================================================
///
//==================================================================================================
class RigWellPathIntersectionTools
{
public:
    static std::vector<WellPathCellIntersectionInfo> findCellIntersectionInfosAlongPath( const RigEclipseCaseData*      caseData,
                                                                                         const QString&                 wellPathName,
                                                                                         const std::vector<cvf::Vec3d>& pathCoords,
                                                                                         const std::vector<double>&     pathMds );

    static std::set<size_t> findIntersectedGlobalCellIndicesForWellPath( const RigEclipseCaseData* caseData, const RigWellPath* wellPath );

    static std::set<size_t> findIntersectedGlobalCellIndices( const RigEclipseCaseData*      caseData,
                                                              const std::vector<cvf::Vec3d>& coords,
                                                              const std::vector<double>&     measuredDepths = {} );

    static cvf::Vec3d
        calculateLengthInCell( const std::array<cvf::Vec3d, 8>& hexCorners, const cvf::Vec3d& startPoint, const cvf::Vec3d& endPoint );

    // Returns the length along each axis in local cell coordinate system
    // The returned vector has unsigned component values
    static cvf::Vec3d
        calculateLengthInCell( const RigMainGrid* grid, size_t cellIndex, const cvf::Vec3d& startPoint, const cvf::Vec3d& endPoint );

    // Insert dummy intersections used to represent gap in grid
    static std::vector<WellPathCellIntersectionInfo>
        buildContinuousIntersections( const std::vector<WellPathCellIntersectionInfo>& originalIntersections,
                                      const cvf::StructGridInterface*                  grid );
};
