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

// **************************************
// task used for comparing different jets D parmaters from fastjet 
// *******************************************

#include  "AliAnalysisTaskSE.h"
#include  "THnSparse.h" // cannot forward declare ThnSparseF
#ifndef __CINT__
# include "fastjet/ClusterSequenceArea.hh"
# include "fastjet/AreaDefinition.hh"
# include "fastjet/JetDefinition.hh"
#else
namespace fastjet {
  enum JetAlgorithm;
  enum Strategy;
  enum RecombinationScheme;
  enum AreaType;
}
#endif

////////////////
class AliJetHeader;
class AliESDEvent;
class AliAODEvent;
class AliAODTrack;
class AliAODExtension;
class AliAODJet;
class AliGenPythiaEventHeader;
class AliCFManager;
class AliAODJetEventBackground;
class AliJetFinder;
class AliAODMCParticle;
class TList;
class TChain;
class TH2F;
class TH1F;
class TH3F;
class TProfile;
class TRandom3;
class TRefArray;
class TClonesArray;
class TF1;

class AliAnalysisTaskJetCluster : public AliAnalysisTaskSE
{
 public:
    AliAnalysisTaskJetCluster();
    AliAnalysisTaskJetCluster(const char* name);
    virtual ~AliAnalysisTaskJetCluster();
    // Implementation of interface methods
    virtual void UserCreateOutputObjects();
    virtual void LocalInit();
    virtual void UserExec(Option_t *option);
    virtual void Terminate(Option_t *option);
    virtual Bool_t Notify();

    
    virtual void SetAODTrackInput(Bool_t b){fUseAODTrackInput = b;}
    virtual void SetAODMCInput(Bool_t b){fUseAODMCInput = b;}
    virtual void SetEventSelection(Bool_t b){fEventSelection = b;}
    virtual void SetRequireITSRefit(Int_t i){fRequireITSRefit=i;}
    virtual void SetSharedClusterCut(Int_t docut){fApplySharedClusterCut=docut;}
    virtual void SetRecEtaWindow(Float_t f){fRecEtaWindow = f;}
    virtual void SetTrackEtaWindow(Float_t f){fTrackEtaWindow = f;}
    virtual void SetTrackTypeGen(Int_t i){fTrackTypeGen = i;}
    virtual void SetTrackTypeRec(Int_t i){fTrackTypeRec = i;}
    virtual void SetTrackPtCut(Float_t x){fTrackPtCut = x;}
    virtual void SetCentralityCut(Float_t xLo,Float_t xUp){fCentCutLo = xLo; fCentCutUp = xUp;}
    virtual void SetFilterMask(UInt_t i,Int_t iType = 0){fFilterMask = i;
      fFilterType = iType;}
    virtual void SetFilterMaskBestPt(UInt_t i){fFilterMaskBestPt = i;}

    virtual void SetJetTypes(UInt_t i){fJetTypes = i;}
    virtual void SetJetTriggerPtCut(Float_t x){fJetTriggerPtCut = x;}    
    virtual void SetVtxCuts(Float_t z,Float_t r = 1){fVtxZCut = z; fVtxR2Cut = r *r;}    
    virtual void SetBackgroundBranch(const char* c){fBackgroundBranch = c;}
    virtual const char* GetBackgroundBranch(){return fBackgroundBranch.Data();}    
    virtual void SetNSkipLeadingRan(Int_t x){fNSkipLeadingRan = x;}
    virtual void SetNSkipLeadingCone(Int_t x){fNSkipLeadingCone = x;}
    virtual void SetNRandomCones(Int_t x){fNRandomCones = x;}

    virtual void SetJetOutputBranch(const char *c){fNonStdBranch = c;}
    virtual const char* GetJetOutputBranch(){return fNonStdBranch.Data();}
    virtual void SetJetOutputFile(const char *c){fNonStdFile = c;}
    virtual const char* GetJetOutputFile(){return fNonStdFile.Data();}
    virtual void SetMaxTrackPtInJet(Float_t x){fMaxTrackPtInJet = x;}
    virtual void SetJetOutputMinPt(Float_t x){fJetOutputMinPt = x;}
    virtual void SetBackgroundCalc(Bool_t b){fUseBackgroundCalc = b;} 
    virtual void SetStoreRhoLeadingTrackCorr(Bool_t b) {fStoreRhoLeadingTrackCorr=b;}

    //Setters for detector level effects
    virtual void SetUseTrResolutionFromOADB(Bool_t b=kTRUE, TString path="$ALICE_ROOT/OADB/PWGJE/Resolution/PtResol_LHCh_Cent0-10_v1.root") {fUseTrPtResolutionFromOADB = b; fPathTrPtResolution=path;}
    virtual void SetUseTrEfficiencyFromOADB(Bool_t b=kTRUE, TString path="$ALICE_ROOT/OADB/PWGJE/Efficiency/Efficiency_LHC11a2aj_Cent0_v1.root") {fUseTrEfficiencyFromOADB = b; fPathTrEfficiency=path;}
    virtual void LoadTrEfficiencyRootFileFromOADB();
    virtual void LoadTrPtResolutionRootFileFromOADB();
    virtual void SetChangeEfficiencyFraction(Double_t p) {fChangeEfficiencyFraction = p;}
    virtual void SetSmearResolution(Bool_t b){fUseTrPtResolutionSmearing = b;} 
    virtual void SetDiceEfficiency(Int_t b){fUseDiceEfficiency = b;} 
    virtual void SetDiceEfficiencyMinPt(Double_t pt) {fDiceEfficiencyMinPt = pt;}
    virtual void SetMomentumResolutionHybrid(TProfile *p1, TProfile *p2, TProfile *p3);
    virtual void SetEfficiencyHybrid(TH1 *h1, TH1 *h2, TH1 *h3);
    virtual void SetFixedEfficiency(Double_t eff) {fEfficiencyFixed = eff;}
    virtual void SetRequireT0vtx(Bool_t b = true){fRequireTZEROvtx = b;}
    virtual void SetRequireV0AC(Bool_t b = true){fRequireVZEROAC = b;}
    virtual void SetUseHFcuts(Bool_t b = true){fUseHFcuts = b;}
    Double_t GetMomentumSmearing(Int_t cat, Double_t pt);
    void FitMomentumResolution();


    // for Fast Jet 
    fastjet::JetAlgorithm        GetAlgorithm()         const {return fAlgorithm;}
    fastjet::Strategy            GetStrategy()          const {return fStrategy;}
    fastjet::RecombinationScheme GetRecombScheme()      const {return fRecombScheme;}
    fastjet::AreaType            GetAreaType()          const {return fAreaType;}
    // Setters
    void SetRparam(Double_t f)                           {fRparam = f;}
    // Temporary change to integer; problem with dictionary generation?
    //void SetAlgorithm(fastjet::JetAlgorithm f)           {fAlgorithm = f;}
    void SetAlgorithm(Int_t f)           {fAlgorithm = (fastjet::JetAlgorithm) f;}
    void SetStrategy(fastjet::Strategy f)                {fStrategy = f;}
    void SetRecombScheme(fastjet::RecombinationScheme f) {fRecombScheme = f;}
    void SetAreaType(fastjet::AreaType f)                {fAreaType = f;}
    void SetGhostArea(Double_t f) {fGhostArea = f;}
    void SetActiveAreaRepeats(Int_t f) {fActiveAreaRepeats = f;}
    void SetGhostEtamax(Double_t f) {fGhostEtamax = f;}



    // Helper
    //
	virtual bool	IsBMeson(int pc);
	virtual bool	IsDMeson(int pc);

    // we have different cases
    // AOD reading -> MC from AOD
    // ESD reading -> MC from Kinematics
    // this has to match with our selection of input events
    enum {kTrackUndef = 0, kTrackAOD, kTrackKineAll,kTrackKineCharged, kTrackAODMCAll, kTrackAODMCCharged, kTrackAODMCChargedAcceptance, kTrackAODextra, kTrackAODextraonly, kTrackAODMCextra, kTrackAODMCextraonly, kTrackAODMCHF};
    enum {kMaxJets = 4};
    enum {kMaxCorrelation =  3};
    enum {kMaxRadius =       5};
    enum {kMaxCent =         4};
    enum {kJet = 1<<0,
	  kJetRan = 1<<1,	  
	  kRC = 1<<2,
	  kRCRan = 1<<3
    };
    

 private:

    AliAnalysisTaskJetCluster(const AliAnalysisTaskJetCluster&);
    AliAnalysisTaskJetCluster& operator=(const AliAnalysisTaskJetCluster&);

    Int_t GetListOfTracks(TList *list,Int_t type);
	Int_t AddDaughters(TList * list, AliAODMCParticle *part, TClonesArray * tca);
    Bool_t AvoidDoubleCountingHF(AliAODEvent *aod, AliAODTrack *tr1);
	
    AliAODEvent     *fAOD;                // ! where we take the jets from can be input or output AOD
    AliAODExtension *fAODExtension;       // ! AOD extension in case we write a non-sdt branch to a separate file and the aod is standard
    TRefArray       *fRef;               // ! trefarray for track references within the jet
    Bool_t        fUseAODTrackInput;      // take track from input AOD not from ouptu AOD
    Bool_t        fUseAODMCInput;         // take MC from input AOD not from ouptu AOD
    Bool_t        fUseBackgroundCalc;     // switches on background calculations
    Bool_t        fEventSelection;        // use the event selection of this task, otherwise analyse all
    Bool_t        fRequireVZEROAC;        // switch to require V0 AC
    Bool_t        fRequireTZEROvtx;       // switch to require T0 vtx
    Bool_t        fUseHFcuts;       // switch to require T0 vtx
    UInt_t        fFilterMask;            // filter bit for slecected tracks
    UInt_t        fFilterMaskBestPt;      // filter bit to mark jets with high quality leading tracks

    UInt_t        fFilterType;            // filter type 0 = all, 1 = ITSTPC, 2 = TPC
    UInt_t        fJetTypes;              // 1<<0 regular jets, 1<<1 << randomized event 1<<2 random cones 1<<3 random cones randomiuzed event
    Int_t         fTrackTypeRec;          // type of tracks used for FF 
    Int_t         fTrackTypeGen;          // type of tracks used for FF 
    Int_t         fNSkipLeadingRan;       // number of leading tracks to be skipped in the randomized event
    Int_t         fNSkipLeadingCone;      // number of leading jets to be for the random cones
    Int_t         fNRandomCones;          // number of generated random cones
    Float_t       fAvgTrials;             // Average nimber of trials
    Float_t       fExternalWeight;        // external weight
    Float_t       fTrackEtaWindow;        // eta window used for corraltion plots between rec and gen 
    Int_t         fRequireITSRefit;       // to select hybrids with ITS refit only
    Int_t         fApplySharedClusterCut; // flag to apply shared cluster cut (needed for some AODs where this cut was not applied in the filtering)
    Float_t       fRecEtaWindow;          // eta window used for corraltion plots between rec and gen 
    Float_t       fTrackPtCut;            // minimum track pt to be accepted
    Float_t       fJetOutputMinPt;        // minimum p_t for jets to be written out
    Float_t       fMaxTrackPtInJet;       // maximum track pt within a jet for flagging...
    Float_t       fJetTriggerPtCut;       // minimum jwt pT for AOD to be written
    Float_t       fVtxZCut;               // zvtx cut
    Float_t       fVtxR2Cut;              // R vtx cut (squared) 
    Float_t       fCentCutUp;             // upper limit on centrality
    Float_t       fCentCutLo;             // lower limit on centrality

    Bool_t       fStoreRhoLeadingTrackCorr; //store histos with rho correlation to leading track in event

    // output configurartion
    TString       fNonStdBranch;      // the name of the non-std branch name, if empty no branch is filled
    TString       fBackgroundBranch;  // name of the branch used for background subtraction
    TString       fNonStdFile;        // The optional name of the output file the non-std branch is written to

    //Detector level effects
    TProfile *fMomResH1; // Momentum resolution from TrackQA Hybrid Category 1
    TProfile *fMomResH2; // Momentum resolution from TrackQA Hybrid Category 2
    TProfile *fMomResH3; // Momentum resolution from TrackQA Hybrid Category 3
    TF1 *fMomResH1Fit;   //fit
    TF1 *fMomResH2Fit;   //fit
    TF1 *fMomResH3Fit;   //fit

    TH1      *fhEffH1;        // Efficiency for Spectra Hybrid Category 1
    TH1      *fhEffH2;        // Efficiency for Spectra Hybrid Category 2
    TH1      *fhEffH3;        // Efficiency for Spectra Hybrid Category 3
    Bool_t    fUseTrPtResolutionSmearing;  // Apply momentum smearing on track level
    Int_t    fUseDiceEfficiency;           // Flag to apply efficiency on track level by dicing 0: no dicing; 1: dicing wrt to accepted; 2: dicing wrt to generated
    Double_t  fDiceEfficiencyMinPt;        // Only do efficiency dicing for tracks above this pt
    Bool_t fUseTrPtResolutionFromOADB;     // Load track pt resolution root file from OADB path
    Bool_t fUseTrEfficiencyFromOADB;       // Load tracking efficiency root file from OADB path
    TString fPathTrPtResolution;           // OADB path to root file
    TString fPathTrEfficiency;             // OADB path to root file
    Double_t fChangeEfficiencyFraction;    // change efficiency by fraction
    Double_t fEfficiencyFixed;             // fixed efficiency for all pT and all types of tracks


    // Fast jet
    Double_t fRparam;                  // fastjet distance parameter
    fastjet::JetAlgorithm fAlgorithm; //fastjet::kt_algorithm
    fastjet::Strategy fStrategy;  //= fastjet::Best;
    fastjet::RecombinationScheme fRecombScheme; // = fastjet::BIpt_scheme;
    fastjet::AreaType fAreaType;  // fastjet area type
    Double_t fGhostArea;          // fasjet ghost area
    Int_t fActiveAreaRepeats;     // fast jet active area repeats
    Double_t fGhostEtamax;        // fast jet ghost area

    TClonesArray  *fTCAJetsOut;           //! TCA of output jets
    TClonesArray  *fTCAJetsOutRan;        //! TCA of output jets in randomized event
    TClonesArray  *fTCARandomConesOut;    //! TCA of output jets in randomized event
    TClonesArray  *fTCARandomConesOutRan; //! TCA of output jets in randomized event
    AliAODJetEventBackground *fAODJetBackgroundOut; //! jet background to be written out

    TRandom3*     fRandom;   //! random number generator
    TProfile*     fh1Xsec;   //! pythia cross section and trials
    TH1F*         fh1Trials; //! trials are added
    TH1F*         fh1PtHard;  //! Pt har of the event...       
    TH1F*         fh1PtHardNoW;  //! Pt har of the event without weigt       
    TH1F*         fh1PtHardTrials;  //! Number of trials 

    TH1F*         fh1NJetsRec; //! number of reconstructed jets
    TH1F*         fh1NConstRec;//! number of constiutens in leading jet
    TH1F*         fh1NConstLeadingRec;//! number of constiutens in leading jet
    TH1F*         fh1PtJetsRecIn;  //! Jet pt for all jets
    TH1F*         fh1PtJetsLeadingRecIn;  //! Jet pt for all jets
    TH1F*         fh1PtJetConstRec;//! pt of constituents
    TH1F*         fh1PtJetConstLeadingRec;// pt of constituents
    TH1F*         fh1PtTracksRecIn;  //! track pt for all tracks
    TH1F*         fh1PtTracksLeadingRecIn;  //! track pt for all tracks

    // Randomized track histos
    TH1F*         fh1NJetsRecRan; //! number of reconstructed jets from randomized
    TH1F*         fh1NConstRecRan;//! number of constiutens in leading jet
    TH1F*         fh1PtJetsLeadingRecInRan;  //! Jet pt for all jets
    TH1F*         fh1NConstLeadingRecRan;//! number of constiutens in leading jet
    TH1F*         fh1PtJetsRecInRan;  //! Jet pt for all jets

    TH1F*         fh1PtTracksGenIn;  //! track pt for all tracks
    TH1F*         fh1Nch;            //! charged particle mult
    TH1F*         fh1BiARandomCones[3]; //! Residual distribtion from reandom cones on real event
    TH1F*         fh1BiARandomConesRan[3]; //! Residual distribtion from reandom cones on random event
    TH1F*         fh1CentralityPhySel;          // ! centrality of anaylsed events 
    TH1F*         fh1Centrality;                // ! centrality of anaylsed events 
    TH1F*         fh1CentralitySelect;          // ! centrality of selected events 
    TH1F*         fh1ZPhySel;          // ! centrality of anaylsed events 
    TH1F*         fh1Z;                // ! centrality of anaylsed events 
    TH1F*         fh1ZSelect;          // ! centrality of selected events 


    TH2F*         fh2NRecJetsPt;            //! Number of found jets above threshold
    TH2F*         fh2NRecTracksPt;          //! Number of found tracks above threshold
    TH2F*         fh2NConstPt;           //! number of constituents vs. pt
    TH2F*         fh2NConstLeadingPt;           //! number of constituents vs. pt
    TH2F*         fh2JetPhiEta;             //! jet phi eta
    TH2F*         fh2LeadingJetPhiEta;      //! leading jet phi eta
    TH2F*         fh2JetEtaPt;              //! leading jet eta
    TH2F*         fh2LeadingJetEtaPt;              //! leading jet eta
    TH2F*         fh2TrackEtaPt;              //! track eta
    TH2F*         fh2LeadingTrackEtaPt;       //! leading track eta
    TH2F*         fh2JetsLeadingPhiEta;     //! jet phi eta
    TH2F*         fh2JetsLeadingPhiPt;      //! jet correlation with leading jet
    TH2F*         fh2TracksLeadingPhiEta;   //! track correlation with leading track
    TH2F*         fh2TracksLeadingPhiPt;    //! track correlation with leading track
    TH2F*         fh2TracksLeadingJetPhiPt; //! track correlation with leading Jet
    TH2F*         fh2JetsLeadingPhiPtW;      //! jet correlation with leading jet
    TH2F*         fh2TracksLeadingPhiPtW;   //! track correlation with leading track
    TH2F*         fh2TracksLeadingJetPhiPtW; //! track correlation with leading Jet
    TH2F*         fh2NRecJetsPtRan;            //! Number of found jets above threshold
    TH2F*         fh2NConstPtRan;           //! number of constituents vs. pt
    TH2F*         fh2NConstLeadingPtRan;           //! number of constituents vs. pt
    TH2F*         fh2PtNch;               //! p_T of cluster vs. multiplicity,
    TH2F*         fh2PtNchRan;            //! p_T of cluster vs. multiplicity,random
    TH2F*         fh2PtNchN;               //! p_T of cluster vs. multiplicity, weigthed with constituents
    TH2F*         fh2PtNchNRan;            //! p_T of cluster vs. multiplicity, weigthed with constituents random
    TH2F*         fh2TracksLeadingJetPhiPtRan; //! track correlation with leading Jet
    TH2F*         fh2TracksLeadingJetPhiPtWRan; //! track correlation with leading Jet


    TH2F*         fh2JetsLeadingPhiPtC[kMaxCent]; //! jet correlation with leading jet    
    TH2F*         fh2JetsLeadingPhiPtWC[kMaxCent];      //! jet correlation with leading jet
    TH2F*         fh2TracksLeadingJetPhiPtC[kMaxCent]; //! track correlation with leading Jet
    TH2F*         fh2TracksLeadingJetPhiPtWC[kMaxCent]; //! track correlation with leading Jet

    TH3F*         fh3CentvsRhoLeadingTrackPt;       //! centrality vs background density full event
    TH3F*         fh3CentvsSigmaLeadingTrackPt;     //! centrality vs sigma full event
    TH3F*         fh3MultvsRhoLeadingTrackPt;       //! multiplicity vs background density full event
    TH3F*         fh3MultvsSigmaLeadingTrackPt;     //! multiplicity vs sigma full event

    TH3F*         fh3CentvsRhoLeadingTrackPtQ1;     //! centrality vs background density vs pt leading track near side
    TH3F*         fh3CentvsRhoLeadingTrackPtQ2;     //! centrality vs background density vs pt leading track perpendicular (+0.5*\pi)
    TH3F*         fh3CentvsRhoLeadingTrackPtQ3;     //! centrality vs background density vs pt leading track away side
    TH3F*         fh3CentvsRhoLeadingTrackPtQ4;     //! centrality vs background density vs pt leading track perpendicular (-0.5*\pi)

    TH3F*         fh3CentvsSigmaLeadingTrackPtQ1;     //! centrality vs sigma vs pt leading track near side
    TH3F*         fh3CentvsSigmaLeadingTrackPtQ2;     //! centrality vs sigma vs pt leading track perpendicular (+0.5*\pi)
    TH3F*         fh3CentvsSigmaLeadingTrackPtQ3;     //! centrality vs sigma vs pt leading track away side
    TH3F*         fh3CentvsSigmaLeadingTrackPtQ4;     //! centrality vs sigma vs pt leading track perpendicular (-0.5*\pi)

    TH3F*         fh3MultvsRhoLeadingTrackPtQ1;    //! multiplicity vs background density vs pt leading track near side
    TH3F*         fh3MultvsRhoLeadingTrackPtQ2;    //! multiplicity vs background density vs pt leading track perpendicular (+0.5*\pi)
    TH3F*         fh3MultvsRhoLeadingTrackPtQ3;    //! multiplicity vs background density vs pt leading track away side
    TH3F*         fh3MultvsRhoLeadingTrackPtQ4;    //! multiplicity vs background density vs pt leading track perpendicular (-0.5*\pi)

    TH3F*         fh3MultvsSigmaLeadingTrackPtQ1;     //! multiplicity vs sigma vs pt leading track near side
    TH3F*         fh3MultvsSigmaLeadingTrackPtQ2;     //! multiplicity vs sigma vs pt leading track perpendicular (+0.5*\pi)
    TH3F*         fh3MultvsSigmaLeadingTrackPtQ3;     //! multiplicity vs sigma vs pt leading track away side
    TH3F*         fh3MultvsSigmaLeadingTrackPtQ4;     //! multiplicity vs sigma vs pt leading track perpendicular (-0.5*\pi)

    TH3F*         fh3CentvsDeltaRhoLeadingTrackPtQ1;     //! centrality vs delta background density vs pt leading track near side
    TH3F*         fh3CentvsDeltaRhoLeadingTrackPtQ2;     //! centrality vs delta background density vs pt leading track perpendicular (+0.5*\pi)
    TH3F*         fh3CentvsDeltaRhoLeadingTrackPtQ3;     //! centrality vs delta background density vs pt leading track away side
    TH3F*         fh3CentvsDeltaRhoLeadingTrackPtQ4;     //! centrality vs delta background density vs pt leading track perpendicular (-0.5*\pi)

    //Histos for detector level effects from toy model
    TH2F *fh2PtGenPtSmeared;     //! Control histo smeared momentum
    TProfile *fp1Efficiency;     //! Control profile efficiency
    TProfile *fp1PtResolution;   //! Control profile for pT resolution

    TList *fHistList; //!leading tracks to be skipped in the randomized event Output list
   

    ClassDef(AliAnalysisTaskJetCluster, 26) 
};
 
#endif