/**
 * \file
 * \copyright
 * Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
 *            Distributed under a Modified BSD License.
 *              See accompanying file LICENSE.txt or
 *              http://www.opengeosys.org/project/license
 */

// STL
#include <memory>
#include <string>
#include <fstream>

#include <tclap/CmdLine.h>

// BaseLib
#include "InfoLib/GitInfo.h"
#include "BaseLib/Logging.h"

// GeoLib
#include "GeoLib/GEOObjects.h"
#include "GeoLib/Surface.h"
#include "GeoLib/IO/TINInterface.h"

// MeshLib
#include "MeshLib/Mesh.h"
#include "MeshLib/Elements/Element.h"
#include "MeshLib/Node.h"
#include "MeshLib/convertMeshToGeo.h"

#include "MeshLib/IO/VtkIO/VtuInterface.h"


int main (int argc, char* argv[])
{
    TCLAP::CmdLine cmd(
        "Converts VTK mesh into TIN file.\n\n"
        "OpenGeoSys-6 software, version " +
            GitInfoLib::GitInfo::ogs_version +
            ".\n"
            "Copyright (c) 2012-2021, OpenGeoSys Community "
            "(http://www.opengeosys.org)",
        ' ', GitInfoLib::GitInfo::ogs_version);
    TCLAP::ValueArg<std::string> mesh_in("i", "mesh-input-file",
                                         "the name of the file containing the input mesh", true,
                                         "", "file name of input mesh");
    cmd.add(mesh_in);
    TCLAP::ValueArg<std::string> mesh_out("o", "TIN-output-file",
                                          "the name of the file the TIN will be written to", true,
                                          "", "file name of output TIN");
    cmd.add(mesh_out);
    cmd.parse(argc, argv);

    std::unique_ptr<MeshLib::Mesh> mesh (MeshLib::IO::VtuInterface::readVTUFile(mesh_in.getValue()));
    INFO("Mesh read: {:d} nodes, {:d} elements.", mesh->getNumberOfNodes(),
         mesh->getNumberOfElements());

    INFO("Converting the mesh to TIN");
    GeoLib::GEOObjects geo_objects;
    if (MeshLib::convertMeshToGeo(*mesh, geo_objects)) {
        INFO("Writing TIN into the file");
        GeoLib::IO::TINInterface::writeSurfaceAsTIN(
            *(*geo_objects.getSurfaceVec(mesh->getName()))[0],
            mesh_out.getValue());
    }

    return EXIT_SUCCESS;
}