///////////////////////////////////////////////////////////////////////////////
//
// File: RCROutflow.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).
//
// License for the specific language governing rights and limitations under
// 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: RCROutflow header
//
///////////////////////////////////////////////////////////////////////////////
#ifndef NEKTAR_RCROUTFLOW_H
#define NEKTAR_RCROUTFLOW_H

#include <LibUtilities/Memory/NekMemoryManager.hpp>
#include <PulseWaveSolver/EquationSystems/PulseWaveBoundary.h>
#include <string>

namespace Nektar
{

// Forward declarations
class RCROutflow;

// Pointer to a PulseWaveOutflow object.
typedef std::shared_ptr<RCROutflow> RCROutflowSharedPtr;

// A global linear system.
class RCROutflow : public PulseWaveBoundary
{
public:
    friend class MemoryManager<RCROutflow>;

    // Creates an instance of this class
    static PulseWaveBoundarySharedPtr create(
        Array<OneD, MultiRegions::ExpListSharedPtr> &pVessel,
        const LibUtilities::SessionReaderSharedPtr &pSession,
        PulseWavePressureAreaSharedPtr &pressureArea)
    {
        return MemoryManager<RCROutflow>::AllocateSharedPtr(pVessel, pSession,
                                                            pressureArea);
    }

    // Name of class
    static std::string className;

protected:
    NekDouble m_timestep;
    NekDouble m_pc = 0.0;

    RCROutflow(Array<OneD, MultiRegions::ExpListSharedPtr> pVessel,
               const LibUtilities::SessionReaderSharedPtr pSession,
               PulseWavePressureAreaSharedPtr pressureArea);

    ~RCROutflow() override = default;

    void v_DoBoundary(const Array<OneD, const Array<OneD, NekDouble>> &inarray,
                      Array<OneD, Array<OneD, NekDouble>> &A_0,
                      Array<OneD, Array<OneD, NekDouble>> &beta,
                      Array<OneD, Array<OneD, NekDouble>> &alpha,
                      const NekDouble time, int omega, int offset,
                      int n) override;

    void R_RiemannSolver(NekDouble R, NekDouble A_l, NekDouble u_l,
                         NekDouble A_0, NekDouble beta, NekDouble alpha,
                         NekDouble POut, NekDouble &A_u, NekDouble &u_u);

private:
};

} // namespace Nektar

#endif
