///////////////////////////////////////////////////////////////////////////////
//
// File: NonlinearSWE.h
//
// 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: Nonlinear Shallow water equations in conservative variables
//
///////////////////////////////////////////////////////////////////////////////

#ifndef NEKTAR_SOLVERS_SHALLOWWATERSOLVER_EQUATIONSYSTEMS_NONLINEARSWE_H
#define NEKTAR_SOLVERS_SHALLOWWATERSOLVER_EQUATIONSYSTEMS_NONLINEARSWE_H

#include <ShallowWaterSolver/EquationSystems/ShallowWaterSystem.h>

namespace Nektar
{

/**
 *
 *
 **/
class NonlinearSWE : public ShallowWaterSystem
{
public:
    friend class MemoryManager<NonlinearSWE>;

    /// Creates an instance of this class
    static SolverUtils::EquationSystemSharedPtr create(
        const LibUtilities::SessionReaderSharedPtr &pSession,
        const SpatialDomains::MeshGraphSharedPtr &pGraph)
    {
        SolverUtils::EquationSystemSharedPtr p =
            MemoryManager<NonlinearSWE>::AllocateSharedPtr(pSession, pGraph);
        p->InitObject();
        return p;
    }
    /// Name of class
    static std::string className;

    ~NonlinearSWE() override;

protected:
    NonlinearSWE(const LibUtilities::SessionReaderSharedPtr &pSession,
                 const SpatialDomains::MeshGraphSharedPtr &pGraph);

    void v_InitObject(bool DeclareFields = true) override;

    void DoOdeRhs(const Array<OneD, const Array<OneD, NekDouble>> &inarray,
                  Array<OneD, Array<OneD, NekDouble>> &outarray,
                  const NekDouble time);

    void DoOdeProjection(
        const Array<OneD, const Array<OneD, NekDouble>> &inarray,
        Array<OneD, Array<OneD, NekDouble>> &outarray, const NekDouble time);

    void GetFluxVector(
        const Array<OneD, const Array<OneD, NekDouble>> &physfield,
        Array<OneD, Array<OneD, Array<OneD, NekDouble>>> &flux);

    void v_GenerateSummary(SolverUtils::SummaryList &s) override;

    void v_PrimitiveToConservative() override;

    void v_ConservativeToPrimitive() override;

private:
    void NumericalFlux1D(Array<OneD, Array<OneD, NekDouble>> &physfield,
                         Array<OneD, Array<OneD, NekDouble>> &numfluxX);

    void NumericalFlux2D(Array<OneD, Array<OneD, NekDouble>> &physfield,
                         Array<OneD, Array<OneD, NekDouble>> &numfluxX,
                         Array<OneD, Array<OneD, NekDouble>> &numfluxY);

    void SetBoundaryConditions(Array<OneD, Array<OneD, NekDouble>> &physarray,
                               NekDouble time);

    void WallBoundary2D(int bcRegion, int cnt,
                        Array<OneD, Array<OneD, NekDouble>> &Fwd,
                        Array<OneD, Array<OneD, NekDouble>> &physarray);
    void WallBoundary(int bcRegion, int cnt,
                      Array<OneD, Array<OneD, NekDouble>> &Fwd,
                      Array<OneD, Array<OneD, NekDouble>> &physarray);

    void AddCoriolis(const Array<OneD, const Array<OneD, NekDouble>> &physarray,
                     Array<OneD, Array<OneD, NekDouble>> &outarray);

    void AddVariableDepth(
        const Array<OneD, const Array<OneD, NekDouble>> &physarray,
        Array<OneD, Array<OneD, NekDouble>> &outarray);

    void ConservativeToPrimitive(
        const Array<OneD, const Array<OneD, NekDouble>> &physin,
        Array<OneD, Array<OneD, NekDouble>> &physout);
    void PrimitiveToConservative(
        const Array<OneD, const Array<OneD, NekDouble>> &physin,
        Array<OneD, Array<OneD, NekDouble>> &physout);

    void GetVelocityVector(const Array<OneD, Array<OneD, NekDouble>> &physfield,
                           Array<OneD, Array<OneD, NekDouble>> &velocity);
};

} // namespace Nektar

#endif
