////////////////////////////////////////////////////////////////////////////////
//
//  File: ProcessLinkCheck.cpp
//
//  For more information, please see: http://www.nektar.info/
//
//  The MIT License
//
//  Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
//  Department of Aeronautics, Imperial College London (UK), and Scientific
//  Computing and Imaging Institute, University of Utah (USA).
//
//  Permission is hereby granted, free of charge, to any person obtaining a
//  copy of this software and associated documentation files (the "Software"),
//  to deal in the Software without restriction, including without limitation
//  the rights to use, copy, modify, merge, publish, distribute, sublicense,
//  and/or sell copies of the Software, and to permit persons to whom the
//  Software is furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included
//  in all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
//  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
//  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
//  DEALINGS IN THE SOFTWARE.
//
//  Description: Calculate Jacobians of elements.
//
////////////////////////////////////////////////////////////////////////////////

#include "ProcessLinkCheck.h"
#include <NekMesh/MeshElements/Element.h>

using namespace std;
using namespace Nektar::NekMesh;

namespace Nektar::NekMesh
{

ModuleKey ProcessLinkCheck::className =
    GetModuleFactory().RegisterCreatorFunction(
        ModuleKey(eProcessModule, "linkcheck"), ProcessLinkCheck::create,
        "Checks elemental links within elements.");

ProcessLinkCheck::ProcessLinkCheck(MeshSharedPtr m) : ProcessModule(m)
{
}

ProcessLinkCheck::~ProcessLinkCheck()
{
}

void ProcessLinkCheck::Process()
{
    m_log(VERBOSE) << "Checking boundary-element links." << endl;

    // need to reset all links first to make sure there are no bugs!
    ClearElementLinks();
    ProcessVertices();
    ProcessEdges();
    ProcessFaces();
    ProcessElements();
    ProcessComposites();

    int count = 0;

    if (m_mesh->m_expDim == 2)
    {
        for (auto &edge : m_mesh->m_edgeSet)
        {
            if (edge->m_elLink.size() != 2)
            {
                count++;
            }
        }
    }
    else
    {
        for (auto &face : m_mesh->m_faceSet)
        {
            if (face->m_elLink.size() != 2)
            {
                count++;
            }
        }
    }

    if (count - m_mesh->m_element[m_mesh->m_expDim - 1].size() != 0)
    {
        m_log(FATAL) << "Link Check Error: mesh contains incorrectly connected"
                     << " entities and is not valid: "
                     << count - m_mesh->m_element[m_mesh->m_expDim - 1].size()
                     << endl;
    }
}

} // namespace Nektar::NekMesh
