#ifndef ALIANALYSISTASKJETSHAPEGR_H
#define ALIANALYSISTASKJETSHAPEGR_H

class TH1;
class TH2;
class TH3;
class TH3F;
class THnSparse;
class TF1;
class TLorentzVector;
class TClonesArray;
class TArrayI;
class TTree;
class TLorentzVector;
class AliAnalysisManager;
class AliVParticle;
class AliJetContainer;

namespace fastjet {
  class PseudoJet;
  class GenericSubtractor;
}

#include "AliAnalysisTaskEmcalJet.h"

class AliAnalysisTaskJetShapeGR : public AliAnalysisTaskEmcalJet {
 public:

  AliAnalysisTaskJetShapeGR();
  AliAnalysisTaskJetShapeGR(const char *name);
  virtual ~AliAnalysisTaskJetShapeGR();

  void                                UserCreateOutputObjects();
  void                                Terminate(Option_t *option);

  //Setters
  void SetCreateTree(Bool_t b)                                  { fCreateTree        = b   ; }

  void SetJetContainerBase(Int_t c)                             { fContainerBase     = c   ; }
  void SetJetContainerSub(Int_t c)                              { fContainerSub      = c   ; }
  void SetJetContainerTrue(Int_t c)                             { fContainerTrue     = c   ; }
  void SetMinFractionShared(Double_t f)                         { fMinFractionShared = f   ; }
  void SetSingleTrackEmbedding(Bool_t b)                        { fSingleTrackEmb    = b   ; }

 protected:
  Bool_t                              RetrieveEventObjects();
  Bool_t                              Run();
  Bool_t                              FillHistograms();
  Bool_t                              FillTrueJets();

  AliVParticle*                       GetEmbeddedConstituent(AliEmcalJet *jet);

  Double_t                            CalcGR(AliEmcalJet *jet, Int_t ic);
  Double_t                            CalcDeltaGR(AliEmcalJet *jet, Int_t ic, TArrayF *fNum, TArrayF *fDen);//Double_t *num, Double_t *den);
  Double_t                            GetDeltaPhi(Double_t phi1,Double_t phi2);

  Int_t                               fContainerBase;              // jets to be analyzed
  Int_t                               fContainerSub;               // subtracted jets to be analyzed
  Int_t                               fContainerTrue;              // true jets to be analyzed
  Double_t                            fMinFractionShared;          // only fill histos for jets if shared fraction larger than X
  Bool_t                              fSingleTrackEmb;             // single track embedding
  Bool_t                              fCreateTree;                 // create output tree

  TTree           *fTreeJetBkg;                                    //!tree with jet and bkg variables
  TLorentzVector  *fJet1Vec;                                       // jet1(AA) vector  
  TLorentzVector  *fJet2Vec;                                       // jet2(probe) vector
  TLorentzVector  *fJetSubVec;                                     // subtracted AA jet vector
  Float_t         fArea;                                           // area
  Float_t         fAreaPhi;                                        // area phi
  Float_t         fAreaEta;                                        // area eta
  Float_t         fRho;                                            // rho
  Float_t         fRhoM;                                           // rho_m
  Int_t           fNConst;                                         // N constituents in jet1
  Int_t           fMatch;                                          // 1: matched to MC jet; 0: no match
  Double_t        fDRStep;                                         // step width
  Double_t        fMaxR;                                           // max R

  TH2F          **fh2PtTrueDeltaGR;                                 //! true jet pT vs (Msub - Mtrue)
  TH2F          **fh2PtTrueDeltaGRRel;                              //! true jet pT vs (Msub - Mtrue)/Mtrue
  THnSparse     **fhnGRResponse;                                    //! Msub vs Mtrue vs PtCorr vs PtTrue

  //Histos for true jets
  TH1F          **fh1PtTrue;                                        //! bookkeep number of jets vs Pt
  TH3F          **fh3DeltaGRNumRPtTrue;                             //! Numerator of DeltaGR vs R vs Pt
  TH3F          **fh3DeltaGRDenRPtTrue;                             //! Denomerator of DeltaGR vs R vs Pt
  TH2F          **fh2DeltaGRNumRPtTrue;                             //! Numerator of DeltaGR vs R vs Pt : filled with weights of sum
  TH2F          **fh2DeltaGRDenRPtTrue;                             //! Denomerator of DeltaGR vs R vs Pt : filled with weights of sum

  //Histos for raw AA jets
  TH1F          **fh1PtRaw;                                       //! bookkeep number of jets vs Pt
  TH3F          **fh3DeltaGRNumRPtRaw;                            //! Numerator of DeltaGR vs R vs Pt
  TH3F          **fh3DeltaGRDenRPtRaw;                            //! Denomerator of DeltaGR vs R vs Pt
  TH2F          **fh2DeltaGRNumRPtRaw;                            //! Numerator of DeltaGR vs R vs Pt : filled with weights of sum
  TH2F          **fh2DeltaGRDenRPtRaw;                            //! Denomerator of DeltaGR vs R vs Pt : filled with weights of sum

  //Histos for raw AA jets matched to MC
  TH1F          **fh1PtRawMatch;                                  //! bookkeep number of jets vs Pt
  TH3F          **fh3DeltaGRNumRPtRawMatch;                       //! Numerator of DeltaGR vs R vs Pt
  TH3F          **fh3DeltaGRDenRPtRawMatch;                       //! Denomerator of DeltaGR vs R vs Pt
  TH2F          **fh2DeltaGRNumRPtRawMatch;                       //! Numerator of DeltaGR vs R vs Pt : filled with weights of sum
  TH2F          **fh2DeltaGRDenRPtRawMatch;                       //! Denomerator of DeltaGR vs R vs Pt : filled with weights of sum

  //Histos for matched jets and subtracted
  TH1F          **fh1PtMatch;                                       //! bookkeep number of jets vs Pt
  TH3F          **fh3DeltaGRNumRPtMatch;                            //! Numerator of DeltaGR vs R vs Pt
  TH3F          **fh3DeltaGRDenRPtMatch;                            //! Denomerator of DeltaGR vs R vs Pt
  TH2F          **fh2DeltaGRNumRPtMatch;                            //! Numerator of DeltaGR vs R vs Pt : filled with weights of sum
  TH2F          **fh2DeltaGRDenRPtMatch;                            //! Denomerator of DeltaGR vs R vs Pt : filled with weights of sum
  TH2F          **fh2DeltaGRNumRPtTrueMatch;                            //! Numerator of DeltaGR vs R vs Pt : filled with weights of sum
  TH2F          **fh2DeltaGRDenRPtTrueMatch;                            //! Denomerator of DeltaGR vs R vs Pt : filled with weights of sum

 private:
  AliAnalysisTaskJetShapeGR(const AliAnalysisTaskJetShapeGR&);            // not implemented
  AliAnalysisTaskJetShapeGR &operator=(const AliAnalysisTaskJetShapeGR&); // not implemented

  ClassDef(AliAnalysisTaskJetShapeGR, 1)
};
#endif