#ifndef WARPX_AVG_GALILEAN_ALGORITHM_H_
#define WARPX_AVG_GALILEAN_ALGORITHM_H_

#include "FieldSolver/SpectralSolver/SpectralAlgorithms/SpectralBaseAlgorithm.H"

/* \brief Class that updates the field in spectral space
 * and stores the coefficients of the corresponding update equation.
 */
class AvgGalileanAlgorithm : public SpectralBaseAlgorithm
{
    public:
        AvgGalileanAlgorithm (const SpectralKSpace& spectral_kspace,
                              const amrex::DistributionMapping& dm,
                              const int norder_x, const int norder_y,
                              const int norder_z, const bool nodal,
                              const amrex::Array<amrex::Real,3>& v_galilean,
                              const amrex::Real dt);
        // Redefine update equation from base class
        virtual void pushSpectralFields (SpectralFieldData& f) const override final;
        virtual int getRequiredNumberOfFields () const override final {
             return SpectralAvgFieldIndex::n_fields;
        };
        void InitializeSpectralCoefficients(
           const SpectralKSpace& spectral_kspace,
           const amrex::DistributionMapping& dm,
           const amrex::Array<amrex::Real, 3>& v_galilean,
           const amrex::Real dt);

    private:
        SpectralRealCoefficients C_coef, S_ck_coef, C1_coef, C3_coef, S1_coef,S3_coef;
        SpectralComplexCoefficients Theta2_coef, X1_coef, X2_coef, X3_coef, X4_coef, Psi1_coef, Psi2_coef, Psi3_coef, Psi4_coef, A1_coef, A2_coef, Rhoold_coef, Rhonew_coef, Jcoef_coef;

};

#endif // WARPX_GALILEAN_ALGORITHM_H_