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// Basic choices which must be made in order to use the FFTJet package

#ifndef RecoJets_FFTJetAlgorithms_fftjetTypedefs_h
#define RecoJets_FFTJetAlgorithms_fftjetTypedefs_h

// The header file for the FFTW library
#include "fftw3.h"

// Classes which build 4-momenta out of energy and direction
#include "RecoJets/FFTJetAlgorithms/interface/VBuilders.h"

// Header file for the concrete FFT engine used
#include "fftjet/FFTWDoubleEngine.hh"

// Header file for the functor interface
#include "fftjet/SimpleFunctors.hh"

namespace fftjetcms {
    // The following three typedefs reflect the choice of the
    // double precision FFTW library for performing DFFTs
    typedef double Real;
    typedef fftw_complex Complex;
    typedef fftjet::FFTWDoubleEngine MyFFTEngine;

    // The next typedef reflects the choice of the 4-vector class
    typedef math::XYZTLorentzVector VectorLike;

    // The following typedef tells how the 4-vectors will be
    // constructed from the grid points in the eta-phi space
    typedef PtEtaP4Builder VBuilder;

    // The following typedef tells which type (or class) is used
    // to provide pileup/background information
    typedef double BgData;

    // The following typedef defines the interface for the functor
    // which calculates the pileup/noise membership function
    typedef fftjet::Functor2<double,double,BgData> AbsBgFunctor;
}

#endif // RecoJets_FFTJetAlgorithms_fftjetTypedefs_h