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// vi: set et ts=4 sw=4 sts=4:
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/*!
 * \file
 * \ingroup TwoPNCTests
 * \brief Definition of the spatial parameters for the fuel cell
 *        problem which uses the isothermal/non-insothermal 2pnc box model.
 */

#ifndef DUMUX_TWOPNC_DIFFUSION_SPATIAL_PARAMS_HH
#define DUMUX_TWOPNC_DIFFUSION_SPATIAL_PARAMS_HH

#include <dumux/porousmediumflow/properties.hh>
#include <dumux/material/spatialparams/fv.hh>
#include <dumux/material/fluidmatrixinteractions/2p/brookscorey.hh>

namespace Dumux {
/*!
 * \ingroup TwoPNCTests
 * \brief Definition of the spatial parameters for the TwoPNCDiffusion
 *        problem which uses the isothermal 2p2c box model.
 */
template<class GridGeometry, class Scalar>
class TwoPNCDiffusionSpatialParams
: public FVSpatialParams<GridGeometry, Scalar,
                         TwoPNCDiffusionSpatialParams<GridGeometry, Scalar>>
{
    using GridView = typename GridGeometry::GridView;
    using ParentType = FVSpatialParams<GridGeometry, Scalar,
                                       TwoPNCDiffusionSpatialParams<GridGeometry, Scalar>>;

    static constexpr int dimWorld = GridView::dimensionworld;

    using Element = typename GridView::template Codim<0>::Entity;
    using GlobalPosition = typename Element::Geometry::GlobalCoordinate;

    using DimWorldMatrix = Dune::FieldMatrix<Scalar, dimWorld, dimWorld>;

    using PcKrSwCurve = FluidMatrix::BrooksCoreyDefault<Scalar>;

public:
    using PermeabilityType = DimWorldMatrix;

    TwoPNCDiffusionSpatialParams(std::shared_ptr<const GridGeometry> gridGeometry)
    : ParentType(gridGeometry)
    , K_(0)
    , pcKrSwCurve_("SpatialParams")
    {
        // intrinsic permeabilities
        K_[0][0] = 5e-11;
        K_[1][1] = 5e-11;
    }


    /*!
     * \brief Returns the hydraulic conductivity \f$[m^2]\f$
     *
     * \param globalPos The global position
     */
    DimWorldMatrix permeabilityAtPos(const GlobalPosition& globalPos) const
    { return K_; }

    /*!
     * \brief Defines the porosity \f$[-]\f$ of the spatial parameters
     *
     * \param globalPos The global position
     */
    Scalar porosityAtPos(const GlobalPosition& globalPos) const
    { return 0.2; }

    /*!
     * \brief Returns the fluid-matrix interaction law at a given location
     *
     * \param globalPos The global coordinates for the given location
     */
    auto fluidMatrixInteractionAtPos(const GlobalPosition& globalPos) const
    {   return makeFluidMatrixInteraction(pcKrSwCurve_); }

    /*!
     * \brief Function for defining which phase is to be considered as the wetting phase.
     *
     * \param globalPos The position of the center of the element
     * \return The wetting phase index
     */
    template<class FluidSystem>
    int wettingPhaseAtPos(const GlobalPosition& globalPos) const
    { return FluidSystem::H2OIdx; }

private:
    DimWorldMatrix K_;
    static constexpr Scalar eps_ = 1e-6;
    const PcKrSwCurve pcKrSwCurve_;
};

} // end namespace Dumux

#endif
