///////////////////////////////////////////////////////////////////////////////
//
// File: StdNodalTriExp.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: Header field for Nodal triangle routines built upon
// StdExpansion2D
//
///////////////////////////////////////////////////////////////////////////////

#ifndef STDNODALTRIEXP_H
#define STDNODALTRIEXP_H

#include <StdRegions/StdTriExp.h>

namespace Nektar::StdRegions
{
class StdNodalTriExp : virtual public StdTriExp
{
public:
    STD_REGIONS_EXPORT StdNodalTriExp(const LibUtilities::BasisKey &Ba,
                                      const LibUtilities::BasisKey &Bb,
                                      const LibUtilities::PointsType Ntype);
    StdNodalTriExp()                        = default;
    StdNodalTriExp(const StdNodalTriExp &T) = default;
    ~StdNodalTriExp() override              = default;

    //-------------------------------
    // Nodal basis specific routines
    //-------------------------------
    STD_REGIONS_EXPORT void NodalToModal(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray);
    STD_REGIONS_EXPORT void NodalToModalTranspose(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray);
    STD_REGIONS_EXPORT void ModalToNodal(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray);
    STD_REGIONS_EXPORT void GetNodalPoints(Array<OneD, const NekDouble> &x,
                                           Array<OneD, const NekDouble> &y);
    STD_REGIONS_EXPORT DNekMatSharedPtr GenNBasisTransMatrix();

protected:
    LibUtilities::PointsKey m_nodalPointsKey;

    STD_REGIONS_EXPORT const LibUtilities::PointsKey v_GetNodalPointsKey()
        const override
    {
        return m_nodalPointsKey;
    };

    STD_REGIONS_EXPORT bool v_IsNodalNonTensorialExp() override;

    //---------------------------------------
    // Transforms
    //---------------------------------------
    STD_REGIONS_EXPORT void v_BwdTrans(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray) override;
    STD_REGIONS_EXPORT void v_BwdTrans_SumFac(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray) override;
    STD_REGIONS_EXPORT void v_FwdTrans(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray) override;

    //---------------------------------------
    // Inner product functions
    //---------------------------------------
    STD_REGIONS_EXPORT void v_IProductWRTBase(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray) override;
    STD_REGIONS_EXPORT void v_IProductWRTBase_SumFac(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray,
        bool multiplybyweights = true) override;
    STD_REGIONS_EXPORT void v_IProductWRTDerivBase(
        const int dir, const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray) override;
    STD_REGIONS_EXPORT void v_IProductWRTDerivBase_SumFac(
        const int dir, const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray) override;

    //---------------------------------------
    // Evaluation functions
    //---------------------------------------
    STD_REGIONS_EXPORT void v_FillMode(
        const int mode, Array<OneD, NekDouble> &outarray) override;

    //---------------------------
    // Helper functions
    //---------------------------
    STD_REGIONS_EXPORT int v_NumBndryCoeffs() const override;

    //--------------------------
    // Mappings
    //--------------------------
    STD_REGIONS_EXPORT int v_GetVertexMap(
        int localVertexId, bool useCoeffPacking = false) override;
    STD_REGIONS_EXPORT void v_GetTraceToElementMap(
        const int eid, Array<OneD, unsigned int> &maparray,
        Array<OneD, int> &signarray, Orientation edgeOrient = eForwards,
        int P = -1, int Q = -1) override;
    STD_REGIONS_EXPORT void v_GetTraceInteriorToElementMap(
        const int eid, Array<OneD, unsigned int> &maparray,
        Array<OneD, int> &signarray,
        const Orientation edgeOrient = eForwards) override;
    STD_REGIONS_EXPORT void v_GetInteriorMap(
        Array<OneD, unsigned int> &outarray) override;
    STD_REGIONS_EXPORT void v_GetBoundaryMap(
        Array<OneD, unsigned int> &outarray) override;

    //---------------------------------------
    // Operator evaluation functions
    //---------------------------------------
    STD_REGIONS_EXPORT void v_MassMatrixOp(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray, const StdMatrixKey &mkey) override;
    STD_REGIONS_EXPORT void v_LaplacianMatrixOp(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray, const StdMatrixKey &mkey) override;
    STD_REGIONS_EXPORT void v_LaplacianMatrixOp(
        const int k1, const int k2, const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray, const StdMatrixKey &mkey) override;
    STD_REGIONS_EXPORT void v_WeakDerivMatrixOp(
        const int i, const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray, const StdMatrixKey &mkey) override;
    STD_REGIONS_EXPORT void v_HelmholtzMatrixOp(
        const Array<OneD, const NekDouble> &inarray,
        Array<OneD, NekDouble> &outarray, const StdMatrixKey &mkey) override;

    //---------------------------------------
    // Wrapper functions
    //---------------------------------------
    STD_REGIONS_EXPORT DNekMatSharedPtr
    v_GenMatrix(const StdMatrixKey &mkey) override;
    STD_REGIONS_EXPORT DNekMatSharedPtr
    v_CreateStdMatrix(const StdMatrixKey &mkey) override;
};

typedef std::shared_ptr<StdNodalTriExp> StdNodalTriExpSharedPtr;
} // namespace Nektar::StdRegions

#endif // STDNODALTRIEXP_H
