///////////////////////////////////////////////////////////////////////////////
//
// File FilterMovingBody.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: Outputs values at specific points during time-stepping.
//
///////////////////////////////////////////////////////////////////////////////

#ifndef NEKTAR_INCNAVIERSTOKES_FILTERS_FILTERMOVINGBODY_H
#define NEKTAR_INCNAVIERSTOKES_FILTERS_FILTERMOVINGBODY_H

#include <LibUtilities/BasicUtils/NekFactory.hpp>
#include <LibUtilities/BasicUtils/SessionReader.h>
#include <SolverUtils/Filters/Filter.h>

namespace Nektar
{
class FilterMovingBody;

typedef std::shared_ptr<FilterMovingBody>    FilterMovingBodySharedPtr;
typedef std::map<std::string, std::string>   FilterParams;
typedef std::pair<std::string, FilterParams> FilterMap;

class FilterMovingBody : public SolverUtils::Filter
{
    public:
        friend class MemoryManager<FilterMovingBody>;

        /// Creates an instance of this class
        static SolverUtils::FilterSharedPtr create(
            const LibUtilities::SessionReaderSharedPtr         &pSession,
            const std::weak_ptr<SolverUtils::EquationSystem> &pEquation,
            const ParamMap &pParams)
        {
            SolverUtils::FilterSharedPtr p = MemoryManager<FilterMovingBody>
                    ::AllocateSharedPtr(pSession, pEquation, pParams);
            return p;
        }

        static std::string className;

        FilterMovingBody(
            const LibUtilities::SessionReaderSharedPtr         &pSession,
            const std::weak_ptr<SolverUtils::EquationSystem> &pEquation,
            const ParamMap &pParams);
        ~FilterMovingBody();

        virtual void v_Initialise(
            const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
            const NekDouble &time);

        virtual void v_Update(
            const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
            const NekDouble &time) {}

        void UpdateForce(
            const LibUtilities::SessionReaderSharedPtr &pSession,
            const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
                  Array<OneD, NekDouble> &Aeroforces,
            const NekDouble &time);

        void UpdateMotion(
            const LibUtilities::SessionReaderSharedPtr &pSession,
            const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
                  Array<OneD, NekDouble> &MotionVars,
            const NekDouble &time);

        virtual void v_Finalise(
            const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
            const NekDouble &time);

        virtual bool v_IsTimeDependent();

    private:
        /// ID's of boundary regions where we want the forces
        std::vector<unsigned int>       m_boundaryRegionsIdList;
        /// Determines if a given Boundary Region is in
        /// m_boundaryRegionsIdList
        std::vector<bool>               m_boundaryRegionIsInList;
        unsigned int                    m_index_f;
        unsigned int                    m_index_m;
        unsigned int                    m_outputFrequency;
        /// plane to take history point from if using a homogeneous1D
        /// expansion
        unsigned int                    m_outputPlane;
        bool                            m_isHomogeneous1D;
        LibUtilities::BasisSharedPtr    m_homogeneousBasis;
        std::string                     m_BoundaryString;
        /// number of planes for homogeneous1D expansion
        int                             m_planes;
        Array<OneD, std::ofstream>      m_outputStream;
        std::string                     m_outputFile_fce;
        std::string                     m_outputFile_mot;
};

}

#endif /* NEKTAR_SOLVERUTILS_FILTERS_FILTERCHECKPOINT_H */
