/**
 * \file
 * \copyright
 * Copyright (c) 2012-2023, OpenGeoSys Community (http://www.opengeosys.org)
 *            Distributed under a Modified BSD License.
 *              See accompanying file LICENSE.txt or
 *              http://www.opengeosys.org/project/license
 *
 */

#include "HexRule20.h"

#include <array>

#include "BaseLib/Logging.h"
#include "Line.h"
#include "MeshLib/Node.h"
#include "Quad.h"

namespace MeshLib
{
const unsigned HexRule20::face_nodes[6][8] = {
    {0, 3, 2, 1, 11, 10, 9, 8},    // Face 0
    {0, 1, 5, 4, 8, 17, 12, 16},   // Face 1
    {1, 2, 6, 5, 9, 18, 13, 17},   // Face 2
    {2, 3, 7, 6, 10, 19, 14, 18},  // Face 3
    {3, 0, 4, 7, 11, 16, 15, 19},  // Face 4
    {4, 5, 6, 7, 12, 13, 14, 15}   // Face 5
};

const unsigned HexRule20::edge_nodes[12][3] = {
    {0, 1, 8},   // Edge 0
    {1, 2, 9},   // Edge 1
    {2, 3, 10},  // Edge 2
    {0, 3, 11},  // Edge 3
    {4, 5, 12},  // Edge 4
    {5, 6, 13},  // Edge 5
    {6, 7, 14},  // Edge 6
    {4, 7, 15},  // Edge 7
    {0, 4, 16},  // Edge 8
    {1, 5, 17},  // Edge 9
    {2, 6, 18},  // Edge 10
    {3, 7, 19}   // Edge 11
};

const Element* HexRule20::getFace(const Element* e, unsigned i)
{
    if (i < n_faces)
    {
        std::array<Node*, 8> nodes{};
        for (unsigned j = 0; j < 8; j++)
        {
            nodes[j] = const_cast<Node*>(e->getNode(face_nodes[i][j]));
        }
        return new Quad8(nodes, e->getID());
    }
    ERR("Error in MeshLib::Element::getFace() - Index {:d} does not exist.", i);
    return nullptr;
}

}  // end namespace MeshLib