/// Class FAIRParticle
/// ------------------
/// Extended TParticle with persistent pointers to mother and daughters
/// particles  (Ivana Hrivnacova, 5.4.2002)
/// Used to define particles which will be added to Geant3/4 (M. Al-Turany)

#ifndef FAIR_PARTICLE_H
#define FAIR_PARTICLE_H

#include "TObject.h"                    // for TObject

#include "Rtypes.h"                     // for Int_t, Double_t, Bool_t, etc
#include "TMCParticleType.h"            // for TMCParticleType
#include "TRef.h"                       // for TRef
#include "TRefArray.h"                  // for TRefArray
#include "TString.h"                    // for TString

class TParticle;

class FairParticle : public TObject
{
  public:
    FairParticle(Int_t id, TParticle* particle);
    FairParticle(Int_t id, TParticle* particle, FairParticle* mother);
    FairParticle(const char* name, Int_t z, Int_t a, Int_t s,Double_t mass , Int_t q, Bool_t stable, Double_t decaytime);
    FairParticle(const char* name, Int_t z, Int_t a, Double_t mass , Int_t q, Bool_t stable, Double_t decaytime);
    FairParticle( Int_t pdg , const TString name, TMCParticleType mcType, Double_t mass, Double_t charge,
                  Double_t lifetime, const TString pType="Ion",  Double_t width=0, Int_t iSpin=0, Int_t iParity=0,
                  Int_t iConjugation=0, Int_t iIsospin=0, Int_t iIsospinZ=0, Int_t gParity=0, Int_t lepton=0,
                  Int_t baryon=0,Bool_t stable=kFALSE);

    FairParticle();

    virtual ~FairParticle();

    // methods
    void SetMother(FairParticle* particle);
    void AddDaughter(FairParticle* particle);
    virtual void  Print(Option_t* option = "") const;
    void PrintDaughters() const;

    // get methods
    Int_t            GetPDG() const;
    TParticle*       GetParticle() const;
    FairParticle*     GetMother() const;
    Int_t            GetNofDaughters() const;
    FairParticle*     GetDaughter(Int_t i) const;
    virtual const char* GetName() const {return fname.Data();}
    TMCParticleType  GetMCType()  {return fmcType;}
    Double_t         GetMass()          {return fmass;}
    Double_t         GetCharge()        {return fcharge;}
    Double_t         GetDecayTime()     {return fDecayTime;}
    const TString&   GetPType()         {return fpType;}
    Double_t         GetWidth()         {return fwidth;}
    Int_t            GetSpin()          {return fiSpin;}
    Int_t            GetiParity()        {return fiParity;}
    Int_t            GetConjugation()   {return fiConjugation;}
    Int_t            GetIsospin()       {return fiIsospin;}
    Int_t            GetIsospinZ()      {return fiIsospinZ;}
    Int_t            GetgParity()        {return fgParity;}
    Int_t            GetLepton()        {return flepton;}
    Int_t            GetBaryon()        {return fbaryon;}
    Bool_t           IsStable()         {return fstable;}

  private:

    FairParticle(const FairParticle& P);
    FairParticle& operator= (const  FairParticle&) {return *this;}
    // data members
    Int_t     fpdg;
    TParticle*    fParticle;
    TRef          fMother;
    TRefArray     fDaughters;
    const TString            fname;
    TMCParticleType   fmcType;
    Double_t    fmass;
    Double_t    fcharge;
    Double_t    fDecayTime;
    const TString   fpType;
    Double_t    fwidth;
    Int_t     fiSpin;
    Int_t     fiParity;
    Int_t     fiConjugation;
    Int_t     fiIsospin;
    Int_t     fiIsospinZ;
    Int_t     fgParity;
    Int_t     flepton;
    Int_t     fbaryon;
    Bool_t    fstable;

    ClassDef(FairParticle,3) // Extended TParticle
};

#endif //FAIR_PARTICLE_H