/////////////////////////////////////////////////////////////////////////////////
//
//  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 "cvfBase.h"
#include "cvfVector3.h"
#include <vector>

namespace cvf
{
    class Part;
    class Object;
    class HitItem;
    class HitItemCollection;
    class Ray;
}


class RiuPickItemInfo
{
public:
    RiuPickItemInfo() 
    : m_distanceAlongRay(std::numeric_limits<double>::infinity())
    , m_pickedPart(nullptr)
    , m_globalPickedPoint (cvf::Vec3d::UNDEFINED)
    , m_localPickedPoint (cvf::Vec3d::UNDEFINED)
    , m_globalRayOrigin(cvf::Vec3d::UNDEFINED)
    , m_sourceInfo (nullptr)
    , m_faceIdx (-1)
    {}

    explicit RiuPickItemInfo(const cvf::HitItem* hitItem, const cvf::Vec3d& globalRayOrigin) 
        : m_pickedPart(nullptr)
        , m_globalPickedPoint (cvf::Vec3d::UNDEFINED)
        , m_localPickedPoint (cvf::Vec3d::UNDEFINED)
        , m_globalRayOrigin(cvf::Vec3d::UNDEFINED)
        , m_sourceInfo (nullptr)
        , m_faceIdx (-1)
    {
        *this = extractPickItemInfo(hitItem);
        m_globalRayOrigin = globalRayOrigin;
    }

    const cvf::Part*   pickedPart()         const { return m_pickedPart;}
    cvf::Vec3d         globalPickedPoint()  const { return m_globalPickedPoint;}
    cvf::Vec3d         localPickedPoint()   const { return m_localPickedPoint;}
    const cvf::Object* sourceInfo()         const { return m_sourceInfo;}
    cvf::uint          faceIdx()            const { return m_faceIdx;}
    double             distanceAlongRay()   const { return m_distanceAlongRay;}
    cvf::Vec3d         globalRayOrigin()    const { return m_globalRayOrigin;}

    static RiuPickItemInfo              extractPickItemInfo(const cvf::HitItem* hitItem);
    static std::vector<RiuPickItemInfo> convertToPickItemInfos(const cvf::HitItemCollection &hitItems, const cvf::Vec3d& globalRayOrigin);

private:
    double             m_distanceAlongRay;
    const cvf::Part*   m_pickedPart;
    cvf::Vec3d         m_globalPickedPoint;
    cvf::Vec3d         m_localPickedPoint;
    cvf::Vec3d         m_globalRayOrigin;
    const cvf::Object* m_sourceInfo;
    cvf::uint          m_faceIdx;
};