///////////////////////////////////////////////////////////////////////////////
//
// File: PowerPressureArea.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: PowerPressureArea header
//
///////////////////////////////////////////////////////////////////////////////
#ifndef NEKTAR_POWERPRESSUREAREA_H
#define NEKTAR_POWERPRESSUREAREA_H

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

namespace Nektar
{

// Forward declarations
class PowerPressureArea;

// Pointer to a PulseWaveOutflow object.
typedef std::shared_ptr<PowerPressureArea> PowerPressureAreaSharedPtr;

// A global linear system.
class PowerPressureArea : public PulseWavePressureArea
{
public:
    friend class MemoryManager<PowerPressureArea>;

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

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

protected:
    PowerPressureArea(Array<OneD, MultiRegions::ExpListSharedPtr> pVessel,
                      const LibUtilities::SessionReaderSharedPtr pSession);

    ~PowerPressureArea() override = default;

    void v_GetPressure(NekDouble &P, const NekDouble &beta, const NekDouble &A,
                       const NekDouble &A0, const NekDouble &dAUdx,
                       const NekDouble &gamma = 0,
                       const NekDouble &alpha = 0.5) override;

    void v_GetC(NekDouble &c, const NekDouble &beta, const NekDouble &A,
                const NekDouble &A0, const NekDouble &alpha = 0.5) override;

    void v_GetW1(NekDouble &W1, const NekDouble &u, const NekDouble &beta,
                 const NekDouble &A, const NekDouble &A0,
                 const NekDouble &alpha = 0.5) override;

    void v_GetW2(NekDouble &W2, const NekDouble &u, const NekDouble &beta,
                 const NekDouble &A, const NekDouble &A0,
                 const NekDouble &alpha = 0.5) override;

    void v_GetAFromChars(NekDouble &A, const NekDouble &W1, const NekDouble &W2,
                         const NekDouble &beta, const NekDouble &A0,
                         const NekDouble &alpha = 0.5) override;

    void v_GetUFromChars(NekDouble &u, const NekDouble &W1,
                         const NekDouble &W2) override;

    void v_GetCharIntegral(NekDouble &I, const NekDouble &beta,
                           const NekDouble &A, const NekDouble &A0,
                           const NekDouble &alpha = 0.5) override;

    void v_GetJacobianInverse(NekMatrix<NekDouble> &invJ,
                              const Array<OneD, NekDouble> &Au,
                              const Array<OneD, NekDouble> &uu,
                              const Array<OneD, NekDouble> &beta,
                              const Array<OneD, NekDouble> &A0,
                              const Array<OneD, NekDouble> &alpha,
                              const std::string &type) override;

    void GetC0(NekDouble &c0, const NekDouble &beta, const NekDouble &A0);

    void GetB(NekDouble &b, const NekDouble &c0);

private:
    NekDouble P_Collapse;
};

} // namespace Nektar

#endif
