// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*
  This file is part of the Open Porous Media project (OPM).

  OPM 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 2 of the License, or
  (at your option) any later version.

  OPM 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 for more details.

  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.

  Consult the COPYING file in the top-level source directory of this
  module for the precise wording of the license and the list of
  copyright holders.
*/
/*!
 * \file
 *
 * \copydoc Opm::DiscreteFractureModel
 */
#ifndef EWOMS_DISCRETE_FRACTURE_MODEL_HH
#define EWOMS_DISCRETE_FRACTURE_MODEL_HH

#include <opm/material/densead/Math.hpp>

#include "discretefractureproperties.hh"
#include "discretefractureprimaryvariables.hh"
#include "discretefractureintensivequantities.hh"
#include "discretefractureextensivequantities.hh"
#include "discretefracturelocalresidual.hh"
#include "discretefractureproblem.hh"

#include <opm/models/immiscible/immisciblemodel.hh>
#include <opm/models/io/vtkdiscretefracturemodule.hpp>

#include <stdexcept>
#include <string>

namespace Opm {
template <class TypeTag>
class DiscreteFractureModel;
}

namespace Opm::Properties {

// Create new type tags
namespace TTag {
//! The generic type tag for problems using the immiscible multi-phase model
struct DiscreteFractureModel { using InheritsFrom = std::tuple<ImmiscibleTwoPhaseModel>; };
} // end namespace TTag

//! The class for the model
template<class TypeTag>
struct Model<TypeTag, TTag::DiscreteFractureModel> { using type = Opm::DiscreteFractureModel<TypeTag>; };

//! The class for the model
template<class TypeTag>
struct BaseProblem<TypeTag, TTag::DiscreteFractureModel> { using type = Opm::DiscreteFractureProblem<TypeTag>; };

//! Use the immiscible multi-phase local jacobian operator for the immiscible multi-phase model
template<class TypeTag>
struct LocalResidual<TypeTag, TTag::DiscreteFractureModel> { using type = Opm::DiscreteFractureLocalResidual<TypeTag>; };

// The type of the base base class for actual problems.
// TODO!?
// template<class TypeTag>
// struct BaseProblem<TypeTag, TTag::DiscreteFractureModel> { using type = DiscreteFractureBaseProblem<TypeTag>; };

//! the PrimaryVariables property
template<class TypeTag>
struct PrimaryVariables<TypeTag, TTag::DiscreteFractureModel>
{ using type = Opm::DiscreteFracturePrimaryVariables<TypeTag>; };

//! the IntensiveQuantities property
template<class TypeTag>
struct IntensiveQuantities<TypeTag, TTag::DiscreteFractureModel>
{ using type = Opm::DiscreteFractureIntensiveQuantities<TypeTag>; };

//! the ExtensiveQuantities property
template<class TypeTag>
struct ExtensiveQuantities<TypeTag, TTag::DiscreteFractureModel>
{ using type = Opm::DiscreteFractureExtensiveQuantities<TypeTag>; };

//! For the discrete fracture model, we need to use two-point flux approximation or it
//! will converge very poorly
template<class TypeTag>
struct UseTwoPointGradients<TypeTag, TTag::DiscreteFractureModel> { static constexpr bool value = true; };

} // namespace Opm::Properties

namespace Opm {

/*!
 * \ingroup DiscreteFractureModel
 * \brief A fully-implicit multi-phase flow model which assumes
 *        immiscibility of the phases and is able to include fractures
 *        in the domain.
 *
 * This model implements multi-phase flow of \f$M > 0\f$ immiscible
 * fluids \f$\alpha\f$. It also can consider edges of the
 * computational grid as fractures i.e. as a porous medium with
 * different higher permeability than the rest of the domain.
 *
 * \todo So far, the discrete fracture model only works for 2D grids
 *       and without energy. Also only the Darcy velocity model is
 *       supported for the fractures.
 *
 * \sa ImmiscibleModel
 */
template <class TypeTag>
class DiscreteFractureModel : public ImmiscibleModel<TypeTag>
{
    using ParentType = ImmiscibleModel<TypeTag>;
    using Simulator = GetPropType<TypeTag, Properties::Simulator>;

public:
    explicit DiscreteFractureModel(Simulator& simulator)
        : ParentType(simulator)
    {
        if (Parameters::Get<Parameters::EnableIntensiveQuantityCache>()) {
            throw std::runtime_error("The discrete fracture model does not work in conjunction "
                                     "with intensive quantities caching");
        }
    }

    /*!
     * \brief Register all run-time parameters for the immiscible model.
     */
    static void registerParameters()
    {
        ParentType::registerParameters();

        // register runtime parameters of the VTK output modules
        Opm::VtkDiscreteFractureModule<TypeTag>::registerParameters();

        // The intensive quantity cache cannot be used by the discrete fracture model, because
        // the intensive quantities of a control degree of freedom are not identical to the
        // intensive quantities of the other intensive quantities of the same of the same degree
        // of freedom. This is because the fracture properties (volume, permeability, etc) are
        // specific for each...
        Parameters::SetDefault<Parameters::EnableIntensiveQuantityCache>(false);
    }

    /*!
     * \copydoc FvBaseDiscretization::name
     */
    static std::string name()
    { return "discretefracture"; }

    void registerOutputModules_()
    {
        ParentType::registerOutputModules_();

        this->addOutputModule(new Opm::VtkDiscreteFractureModule<TypeTag>(this->simulator_));
    }
};
} // namespace Opm

#endif
