/***************************************************************************
 *   Copyright (c) 2005 Werner Mayer <wmayer[at]users.sourceforge.net>     *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  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 Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#include "PreCompiled.h"
#ifndef _PreComp_
#endif

#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/Sequencer.h>

#include "Core/MeshKernel.h"
#include "Core/Algorithm.h"
#include "Core/Evaluation.h"
#include "Core/Iterator.h"
#include "Core/Visitor.h"

#include "Core/SetOperations.h"

#include "FeatureMeshSetOperations.h"


using namespace Mesh;
using namespace std;

PROPERTY_SOURCE(Mesh::SetOperations, Mesh::Feature)


SetOperations::SetOperations()
{
    ADD_PROPERTY(Source1  ,(nullptr));
    ADD_PROPERTY(Source2  ,(nullptr));
    ADD_PROPERTY(OperationType, ("union"));
}

short SetOperations::mustExecute() const
{
    if (Source1.getValue() && Source2.getValue()) {
        if (Source1.isTouched())
            return 1;
        if (Source2.isTouched())
            return 1;
        if (OperationType.isTouched())
            return 1;
    }

    return 0;
}

App::DocumentObjectExecReturn *SetOperations::execute()
{
    Mesh::Feature *mesh1  = dynamic_cast<Mesh::Feature*>(Source1.getValue());
    Mesh::Feature *mesh2  = dynamic_cast<Mesh::Feature*>(Source2.getValue());

    if ((mesh1 != nullptr) && (mesh2 != nullptr)) {
        const MeshObject& meshKernel1 = mesh1->Mesh.getValue();
        const MeshObject& meshKernel2 = mesh2->Mesh.getValue();

        std::unique_ptr<MeshObject> pcKernel(new MeshObject()); // Result Meshkernel

        MeshCore::SetOperations::OperationType type;
        string ot(OperationType.getValue());
        if (ot == "union")
            type = MeshCore::SetOperations::Union;
        else if (ot == "intersection")
            type = MeshCore::SetOperations::Intersect;
        else if (ot == "difference")
            type = MeshCore::SetOperations::Difference;
        else if (ot == "inner")
            type = MeshCore::SetOperations::Inner;
        else if (ot == "outer")
            type = MeshCore::SetOperations::Outer;
        else
            throw Base::ValueError("Operation type must either be 'union' or 'intersection'"
                                   " or 'difference' or 'inner' or 'outer'");

        MeshCore::SetOperations setOp(meshKernel1.getKernel(), meshKernel2.getKernel(), 
            pcKernel->getKernel(), type, 1.0e-5f);
        setOp.Do();
        Mesh.setValuePtr(pcKernel.release());
    }
    else {
        // Error mesh property
        if (!mesh1)
            throw Base::ValueError("First input mesh not set");
        if (!mesh2)
            throw Base::ValueError("Second input mesh not set");
    }

    return App::DocumentObject::StdReturn;
}