#ifndef ALIITSPLANEEFFSPD_H
#define ALIITSPLANEEFFSPD_H
/* Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

#include <TH1F.h>
#include <TH2I.h>
#include <TProfile.h>
#include "AliITSPlaneEff.h"

class AliCDBId;

///////////////////////////////////////////
//                                       //
// ITS Plane Efficiency class            //
//       for SPD                         //
// Origin: Giuseppe.Bruno@ba.infn.it     //
///////////////////////////////////////////

/* $Id$ */
  
class AliITSPlaneEffSPD :  public AliITSPlaneEff {
 public:
    AliITSPlaneEffSPD(); // default constructor
    virtual ~AliITSPlaneEffSPD(); // destructror
    // copy constructor
    AliITSPlaneEffSPD(const AliITSPlaneEffSPD &source);
    // ass. operator
    AliITSPlaneEffSPD& operator=(const AliITSPlaneEffSPD &s);
    // Simple way to add another class (i.e. statistics). 
    AliITSPlaneEffSPD& operator +=( const AliITSPlaneEffSPD &add);
    // Getters for average Plane efficiency (including dead/noisy)
    Double_t PlaneEff(const UInt_t mod, const UInt_t chip, Bool_t FO=kFALSE, const UInt_t BCm4=0) const;
    Double_t ErrPlaneEff(const UInt_t mod, const UInt_t chip, Bool_t FO=kFALSE, const UInt_t BCm4=0) const;
    Double_t PlaneEff(const UInt_t key) const 
        {return PlaneEff(GetModFromKey(key),GetChipFromKey(key),IsForFO(key),GetBCm4FromKey(key));};
    Double_t ErrPlaneEff(const UInt_t key) const 
        {return ErrPlaneEff(GetModFromKey(key),GetChipFromKey(key),IsForFO(key),GetBCm4FromKey(key));};
    // Getters for fFound[] and fTried[]
    Int_t GetFound(const UInt_t key) const; 
    Int_t GetTried(const UInt_t key) const; 
    // Methods to update the Plane efficiency (specific of the SPD segmentation) 
    Bool_t UpDatePlaneEff(const Bool_t Kfound, const UInt_t mod, const UInt_t chip, Bool_t FO=kFALSE, const UInt_t BCm4=0);
    Bool_t UpDatePlaneEff(const Bool_t Kfound, const UInt_t key)
        {return UpDatePlaneEff(Kfound,GetModFromKey(key),GetChipFromKey(key),IsForFO(key),GetBCm4FromKey(key));};
    //
    enum {kNModule = 240}; // The number of modules
    enum {kNModuleLy1 = 80}; // The number of modules in Inner Layer
    enum {kNChip = 5};     // The number of chips per module
    enum {kNCol = 32};     // The number of columns per chip
    enum {kNRow = 256};    // The number of rows per chip (and per module)
    enum {kNClockPhase = 4}; // The number of clock phases between LHC (40 MHz clock) and SPD (10 MHz clock), for FO studies

    virtual Double_t LivePlaneEff(UInt_t key) const;
    Double_t LivePlaneEff(const UInt_t mod, const UInt_t chip) const
       {return LivePlaneEff(GetKey(mod,chip));};
    virtual Double_t ErrLivePlaneEff(UInt_t key) const;
    Double_t ErrLivePlaneEff(const UInt_t mod, const UInt_t chip) const
       {return ErrLivePlaneEff(GetKey(mod,chip));};
    // Compute the fraction of Live area (of the CHIP for the SPD)
    virtual Double_t GetFracLive(const UInt_t key) const;
    // Compute the fraction of bad (i.e. dead and noisy) area (of the CHIP for the SPD)
    virtual Double_t GetFracBad(const UInt_t key) const;
    virtual Bool_t WriteIntoCDB() const;
    virtual Bool_t ReadFromCDB(); // this method reads Data Members (statistics) from DataBase
    Bool_t AddFromCDB(AliCDBId *cdbId);   // this method updates Data Members (statistics) from DataBase
    virtual Bool_t AddFromCDB() {AliCDBId *cdbId=0; return  AddFromCDB(cdbId);}
   // method to locate a basic block from Detector Local coordinate (to be used in tracking)
   // see file cxx for numbering convention.
   // here idet runs from 0 to 79 for layer 0 and from 0 to 159 for layer 1
    UInt_t GetKey(const UInt_t mod, const UInt_t chip, const Bool_t FO=kFALSE, const UInt_t BCm4=0) const; // unique key to locate the basic
                                                                                                           // block of the SPD for detector and FO efficiency
    UInt_t SwitchChipKeyNumbering(UInt_t key) const; //  method to switch from offline chip key numbering to online Raw Stream chip numbering 
                                                     // and viceversa. Used for Fast-Or studies.
    UInt_t GetKeyFromDetLocCoord(Int_t ilay,Int_t idet, Float_t, Float_t locz) const;
    UInt_t Nblock() const; // return the number of basic blocks
    // compute the geometrical limit of a basic block (chip) in detector local coordinate system 
    Bool_t GetBlockBoundaries(const UInt_t key,Float_t& xmn,Float_t& xmx,Float_t& zmn,Float_t& zmx) const;
  // Methods for dealing with auxiliary histograms
    // method to set on/off the creation/updates of histograms (Histos are created/destroyed)
    virtual void   SetCreateHistos(Bool_t his=kFALSE) 
         //{fHis=his; if(fHis) InitHistos(); else DeleteHistos(); return; }
         {fHis=his; if(fHis) {DeleteHistos(); InitHistos();} else DeleteHistos(); return; }
    virtual Bool_t FillHistos(UInt_t key, Bool_t found, Float_t *track, Float_t *cluster, Int_t *ctype, Float_t *angtrkmod);
    virtual Bool_t WriteHistosToFile(TString filename="PlaneEffSPDHistos.root",Option_t* option = "RECREATE");
    virtual Bool_t ReadHistosFromFile(TString filename="PlaneEffSPDHistos.root"); // histos must exist already !
                                                                                  // This method increases the
                                                                                  // statistics of histos by adding 
									          // those of the input file. 
 protected:
    virtual void Copy(TObject &obj) const;           // copy ALL data members to obj 
                                                     // both statistics ad histograms)
    Int_t GetMissingTracksForGivenEff(Double_t eff, Double_t RelErr, UInt_t im, UInt_t ic) const;
    UInt_t GetModFromKey(const UInt_t key) const;
    UInt_t GetChipFromKey(const UInt_t key) const;
    Bool_t IsForFO(const UInt_t key) const;
    UInt_t GetBCm4FromKey(const UInt_t key) const;  // return the "Bunch Crossing modulo 4" (for Fast Or studies)
    UInt_t GetChipFromCol(const UInt_t col) const;  // get the chip number (from 0 to kNChip)
    UInt_t GetColFromLocZ(Float_t zloc) const;      // get the Column from the local z
    Float_t GetLocZFromCol(const UInt_t col) const; // get the local Z from the column number,
                                                    // the latter in the range [0,kNChip*kNCol]
    Float_t GetLocXFromRow(const UInt_t row) const; // get the local X from the row number
                                                    // the latter in the range [0,kNRow]
    void GetModAndChipFromKey(const UInt_t key, UInt_t& mod, UInt_t& chip) const;
    void GetDeadAndNoisyInChip(const UInt_t key, UInt_t& dead, UInt_t& noisy) const;
// 
    Int_t fFound[kNModule*kNChip*(kNClockPhase+1)];  // if(<kNModule*kNChip) is the number of associated clusters in a given chip
    Int_t fTried[kNModule*kNChip*(kNClockPhase+1)];  // if(<kNModule*kNChip) is the number of tracks used for chip efficiency evaluation
                                                     // if(>=kNModule*kNChip) Same tale but for Fast-Or
                                                     // studies (in the 4 phase relationship between LHC and SPD clocks)
    Bool_t FillHistosStd(UInt_t key, Bool_t found, Float_t *track, Float_t *cluster, Int_t *ctype, Float_t *angtrkmod);
    Bool_t FillHistosFO(UInt_t key, Bool_t found, Float_t *track);

 private:
    enum {kNHisto = kNModule}; // The number of histograms: module by module.
    enum {kNclu = 3};          // Build specific histos of residuals up to cluster size kNclu.
                               // If you change them, then you must change implementation of
                               // the method FillHistos.

    virtual void InitHistos(); // create histos by allocating memory for them 
    virtual void DeleteHistos(); // deletete histos (memory is freed)
    virtual void CopyHistos(AliITSPlaneEffSPD& target) const; // copy only histograms to target

    TH1F **fHisResX; //! histos with residual distribution (track-cluster) along local X (r-phi)
    TH1F **fHisResZ; //! histos with residual distribution (track-cluster) along local Z
    TH2F **fHisResXZ; //! 2-d histos with residual distribution (track-cluster) along local X and Z
    TH2I **fHisClusterSize; //! histos with cluster-size distribution
    TH1F ***fHisResXclu; //! histos with residual distribution along local X (r-phi) for cluster type
    TH1F ***fHisResZclu; //! histos with residual distribution along local Z for cluster type
    TH1F ***fHisResXchip; //! histos with residual distribution along local X (r-phi) chip by chip
    TH1F ***fHisResZchip; //! histos with residual distribution along local Z chip by chip
    TProfile **fProfResXvsPhi; //! TProfile of X Residuals vs. impact Angle phi (of the track w.r.t. module)
    //TProfile **fProfResZvsPhi; //! TProfile of Z Residuals vs. impact Angle phi (of the track w.r.t. module)
    //TProfile **fProfResXvsDip; //! TProfile of X Residuals vs. impact dip Angle  (of the track w.r.t. module)
    TProfile **fProfResZvsDip; //! TProfile of Z Residuals vs. impact dip Angle  (of the track w.r.t. module)
    TProfile ***fProfResXvsPhiclu; //! TProfile of X Residuals vs. impact Angle phi (of the track w.r.t. module) for different clu. type
    TProfile ***fProfResZvsDipclu; //! TProfile of Z Residuals vs. impact dip Angle  (of the track w.r.t. module) for different clu. type
    TH1F **fHisTrackErrX; //! histos with track prediction error on Local X
    TH1F **fHisTrackErrZ; //! histos with track prediction error on Local Z
    TH1F **fHisClusErrX; //! histos with Local_X cluster error
    TH1F **fHisClusErrZ; //! histos with Local_Z cluster error
    TH1F ***fHisTrackXFOtrue; //! histos with track prediction along local X (r-phi) if FastOr bit is found
    TH1F ***fHisTrackZFOtrue; //! histos with track prediction along local Z if FastOr bit is found
    TH1F ***fHisTrackXFOfalse; //! histos with track prediction along local X (r-phi) if FastOr bit is not found
    TH1F ***fHisTrackZFOfalse; //! histos with track prediction along local Z if FastOr bit is not found
    TH2F ***fHisTrackXZFOtrue; //! histos with track prediction along local X (r-phi) and Z if FastOr bit is found
    TH2F ***fHisTrackXZFOfalse; //! histos with track prediction along local X (r-phi) and Z if FastOr bit is not found
    
    ClassDef(AliITSPlaneEffSPD,4) // SPD Plane Efficiency class
};
//
inline UInt_t AliITSPlaneEffSPD::Nblock() const {return kNModule*kNChip;}

inline Int_t AliITSPlaneEffSPD::GetFound(const UInt_t key) const {
 if(key>=kNModule*kNChip*(kNClockPhase+1)) {AliWarning("GetFound: you asked for a non existing key"); return -1;}
 if(key>=kNModule*kNChip)AliWarning("GetFound: you asked for FO efficiency studies");
 return fFound[key];
}
inline Int_t AliITSPlaneEffSPD::GetTried(const UInt_t key) const {
 if(key>=kNModule*kNChip*(kNClockPhase+1)) {AliWarning("GetTried: you asked for a non existing key"); return -1;}
 if(key>=kNModule*kNChip)AliWarning("GetTried: you asked for FO efficiency studies");
 return fTried[key];
}
//
#endif