#ifndef ALICALOPID_H
#define ALICALOPID_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice     */
/* $Id:  $ */

//_________________________________________________________________________
// Class for track/cluster acceptance selection
// Selection in Central barrel, EMCAL and PHOS
//
//*-- Author: Gustavo Conesa (INFN-LNF)

// --- ROOT system ---
#include <TObject.h> 
class TString ;
class TLorentzVector ;
class TFormula ;

//--- AliRoot system ---
class AliAODCaloCluster;
class AliAODPWG4Particle;

class AliCaloPID : public TObject {
	
 public: 
  
  AliCaloPID() ; // ctor
  AliCaloPID(const AliCaloPID & g) ; // cpy ctor
  AliCaloPID & operator = (const AliCaloPID & g) ;//cpy assignment
  virtual ~AliCaloPID() ;//virtual dtor
  
  enum PidType {
    kPhoton = 22,
    kPi0 = 111,
    kEta = 221, 
    kElectron = 11, 
    kEleCon = -11, 
    kNeutralHadron = 2112, 
    kChargedHadron = 211, 
    kNeutralUnknown = 130, 
    kChargedUnknown=321
  };
  
  enum TagType {kPi0Decay, kEtaDecay, kOtherDecay, kConversion, kNoTag = -1};
  
  void InitParameters();
  
  Int_t GetPdg(const TString calo, const Double_t * pid, const Float_t energy) const ;
  
  Int_t GetPdg(const TString calo,const TLorentzVector mom, const AliAODCaloCluster * cluster) const ;
  
  TString	GetPIDParametersList();
  
  void SetPIDBits(const TString calo,  const AliAODCaloCluster * cluster, AliAODPWG4Particle *aodph);
  
  void Print(const Option_t * opt)const;
  
  //Weight getters
  Float_t  GetEMCALPhotonWeight() const  { return  fEMCALPhotonWeight  ; }
  Float_t  GetEMCALPi0Weight() const     {  return fEMCALPi0Weight  ; }
  Float_t  GetEMCALElectronWeight() const  { return  fEMCALElectronWeight  ; }
  Float_t  GetEMCALChargeWeight() const     {  return fEMCALChargeWeight  ; }
  Float_t  GetEMCALNeutralWeight() const     {  return fEMCALNeutralWeight  ; }
  Float_t  GetPHOSPhotonWeight() const   {  return fPHOSPhotonWeight  ; }
  Float_t  GetPHOSPi0Weight() const   {  return fPHOSPi0Weight  ; }
  Float_t  GetPHOSElectronWeight() const   {  return fPHOSElectronWeight  ; }
  Float_t  GetPHOSChargeWeight() const   {  return fPHOSChargeWeight  ; }
  Float_t  GetPHOSNeutralWeight() const   {  return fPHOSNeutralWeight  ; }
  
  Bool_t  IsPHOSPIDWeightFormulaOn() const   {  return fPHOSWeightFormula  ; } 
  TFormula * GetPHOSPhotonWeightFormula() const     {  return fPHOSPhotonWeightFormula  ; } 
  TFormula * GetPHOSPi0WeightFormula() const    {  return fPHOSPi0WeightFormula  ; }
  
  //Weight setters
  void SetEMCALPhotonWeight(Float_t  w){  fEMCALPhotonWeight = w ; }
  void SetEMCALPi0Weight(Float_t  w){  fEMCALPi0Weight = w ; }
  void SetEMCALElectronWeight(Float_t  w){  fEMCALElectronWeight = w ; }
  void SetEMCALChargeWeight(Float_t  w){  fEMCALChargeWeight = w ; }
  void SetEMCALNeutralWeight(Float_t  w){  fEMCALNeutralWeight = w ; }
  void SetPHOSPhotonWeight(Float_t  w){  fPHOSPhotonWeight = w ; }
  void SetPHOSPi0Weight(Float_t  w){  fPHOSPi0Weight = w ; }
  void SetPHOSElectronWeight(Float_t  w){  fPHOSElectronWeight = w ; }
  void SetPHOSChargeWeight(Float_t  w){  fPHOSChargeWeight = w ; }
  void SetPHOSNeutralWeight(Float_t  w){  fPHOSNeutralWeight = w ; }
  
  void UsePHOSPIDWeightFormula(Bool_t par)  { fPHOSWeightFormula  = par; } 
  void SetPHOSPhotonWeightFormula(TFormula * photon)    {  fPHOSPhotonWeightFormula  = photon; } 
  void SetPHOSPi0WeightFormula(TFormula * pi0)   {  fPHOSPi0WeightFormula  = pi0; }
  
  //PID bits setters and getters
  void SetDispersionCut(Float_t dcut ) {fDispCut = dcut; }
  Float_t GetDispersionCut() const {return fDispCut ;}   
  
  void SetTOFCut(Float_t tcut ) {fTOFCut = tcut; }
  Float_t GetTOFCut() const {return fTOFCut ;}   
  
  void SetDebug(Int_t deb) {fDebug=deb;}
  Int_t GetDebug() const {return fDebug;}	
  
 private:
  
  Float_t      fEMCALPhotonWeight; //Bayesian PID weight for photons in EMCAL 
  Float_t      fEMCALPi0Weight;  //Bayesian PID weight for pi0 in EMCAL 
  Float_t      fEMCALElectronWeight; //Bayesian PID weight for electrons in EMCAL 
  Float_t      fEMCALChargeWeight;  //Bayesian PID weight for charged hadrons in EMCAL 
  Float_t      fEMCALNeutralWeight;  //Bayesian PID weight for neutral hadrons in EMCAL 
  Float_t      fPHOSPhotonWeight; //Bayesian PID weight for photons in PHOS 
  Float_t      fPHOSPi0Weight; //Bayesian PID weight for pi0 in PHOS 
  Float_t      fPHOSElectronWeight; //Bayesian PID weight for electrons in PHOS 
  Float_t      fPHOSChargeWeight; //Bayesian PID weight for charged hadrons in PHOS 
  Float_t      fPHOSNeutralWeight; //Bayesian PID weight for neutral hadrons in PHOS 
  
  Bool_t  fPHOSWeightFormula ; //Use parametrized weight threshold, function of energy
  TFormula * fPHOSPhotonWeightFormula ; //Formula for photon weight
  TFormula * fPHOSPi0WeightFormula ; //Formula for pi0 weight
  
  Float_t fDispCut;    //Cut on dispersion, used in PID evaluation
  Float_t fTOFCut;     //Cut on TOF, used in PID evaluation
  
  Int_t	 fDebug; //Debug level
  
  ClassDef(AliCaloPID,3)
    } ;


#endif //ALICALOPID_H