/********************************************************************************
 *    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
 *                                                                              *
 *              This software is distributed under the terms of the             *
 *              GNU Lesser General Public Licence (LGPL) version 3,             *
 *                  copied verbatim in the file "LICENSE"                       *
 ********************************************************************************/
#ifndef CBMMCBM2019CHECKPULSER_H
#define CBMMCBM2019CHECKPULSER_H

#include "CbmDefs.h"

#include "FairTask.h"

#include "TString.h"

class TClonesArray;
class TH1;
class TH2;
class TProfile;

class CbmMcbm2019CheckPulser : public FairTask
{
  public:

    CbmMcbm2019CheckPulser();

    CbmMcbm2019CheckPulser(const CbmMcbm2019CheckPulser&) = delete;
    CbmMcbm2019CheckPulser operator=(const CbmMcbm2019CheckPulser&) = delete;

    /** Constructor with parameters (Optional) **/
    //  CbmMcbm2019CheckPulser(Int_t verbose);


    /** Destructor **/
    ~CbmMcbm2019CheckPulser();


    /** Initiliazation of task at the beginning of a run **/
    virtual InitStatus Init();

    /** ReInitiliazation of task when the runID changes **/
    virtual InitStatus ReInit();


    /** Executed for each event. **/
    virtual void Exec(Option_t*);

    /** Load the parameter container from the runtime database **/
    virtual void SetParContainers();

    /** Finish task called at the end of the run **/
    virtual void Finish();

    void SetOffsetSearchRange(Int_t val = 1000)
       { fOffsetRange = val; }

    void SetStsOffsetSearchRange(Int_t val = 1000)
       { fStsOffsetRange = val; }

    void SetMuchOffsetSearchRange(Int_t val = 1000)
       { fMuchOffsetRange = val; }

    void SetTofOffsetSearchRange(Int_t val = 1000)
       { fTofOffsetRange = val; }

    void SetRichOffsetSearchRange(Int_t val = 1000)
       { fRichOffsetRange = val; }

    void SetPsdOffsetSearchRange(Int_t val = 1000)
       { fPsdOffsetRange = val; }

    inline void SetT0PulserTotLimits( UInt_t uMin, UInt_t uMax )
        { fuMinTotPulserT0 = uMin;   fuMaxTotPulserT0 = uMax; }
    inline void SetStsPulserAdcLimits( UInt_t uMin, UInt_t uMax )
        { fuMinAdcPulserSts = uMin;  fuMaxAdcPulserSts = uMax; }
    inline void SetMuchPulseradcLimits( UInt_t uMin, UInt_t uMax )
        { fuMinAdcPulserMuch = uMin; fuMaxAdcPulserMuch = uMax; }
    inline void SetTofPulserTotLimits( UInt_t uMin, UInt_t uMax )
        { fuMinTotPulserTof = uMin;  fuMaxTotPulserTof = uMax; }
    inline void SetRichPulserTotLimits( UInt_t uMin, UInt_t uMax )
        { fuMinTotPulserRich = uMin; fuMaxTotPulserRich = uMax; }
    inline void SetPsdPulserAdcLimits( UInt_t uMin, UInt_t uMax )
        { fuMinAdcPulserPsd = uMin;  fuMaxAdcPulserPsd = uMax; }

    inline void SetOutFilename( TString sNameIn ) { fOutFileName = sNameIn; }

  private:

    void CheckTimeOrder();
    Int_t CheckIfSorted(TClonesArray*, TH1*, Double_t&, TString);

    void CheckInterSystemOffset();

    Int_t FillSystemOffsetHistos(TClonesArray* array,
                                 TH1* histo,
                                 TH2* histoEvo, TH2* histoEvoLong, TProfile * profMeanEvo,
                                 TH2* histoAFCK,
                                 const Double_t T0Time, const Int_t offsetRange, Int_t iStartDigi,
                                 ECbmModuleId iDetId = kLastModule
                                  );

    Int_t CalcNrBins(Int_t);
    void CreateHistos();
    void WriteHistos();


    /** Input array from previous already existing data level **/
    TClonesArray* fT0Digis   = nullptr;
    TClonesArray* fStsDigis  = nullptr;
    TClonesArray* fMuchDigis = nullptr;
    TClonesArray* fTofDigis  = nullptr;
    TClonesArray* fRichDigis = nullptr;
    TClonesArray* fPsdDigis  = nullptr;

    /// Variables to store the previous digi time
    Double_t fPrevTimeT0   = 0.;
    Double_t fPrevTimeSts  = 0.;
    Double_t fPrevTimeMuch = 0.;
    Double_t fPrevTimeTof  = 0.;
    Double_t fPrevTimeRich = 0.;
    Double_t fPrevTimePsd  = 0.;

    /// Variables to store the first digi fitting the previous T0 hits
    /// => Time-order means the time window for following one can only be in a later digi
    Int_t fPrevT0FirstDigiSts  = 0;
    Int_t fPrevT0FirstDigiMuch = 0;
    Int_t fPrevT0FirstDigiTof  = 0;
    Int_t fPrevT0FirstDigiRich = 0;
    Int_t fPrevT0FirstDigiPsd  = 0;

    /// User settings: Data correction parameters
    UInt_t fuMinTotPulserT0   = 182;
    UInt_t fuMaxTotPulserT0   = 190;
    UInt_t fuMinAdcPulserSts  =  90;
    UInt_t fuMaxAdcPulserSts  = 100;
    UInt_t fuMinAdcPulserMuch =   5;
    UInt_t fuMaxAdcPulserMuch =  15;
    UInt_t fuMinTotPulserTof  = 182;
    UInt_t fuMaxTotPulserTof  = 190;
    UInt_t fuMinTotPulserRich =  90;
    UInt_t fuMaxTotPulserRich = 105;
    UInt_t fuMinAdcPulserPsd  =  90;
    UInt_t fuMaxAdcPulserPsd  = 100;

    //
    Int_t fNrTs = 0;

    Int_t fOffsetRange     = 1000;
    Int_t fStsOffsetRange  = 1000;
    Int_t fMuchOffsetRange = 1000;
    Int_t fTofOffsetRange  = 1000;
    Int_t fRichOffsetRange = 1000;
    Int_t fPsdOffsetRange  = 1000;

    Int_t fBinWidth = 1;

    TH1* fT0StsDiff  = nullptr;
    TH1* fT0MuchDiff = nullptr;
    TH1* fT0TofDiff  = nullptr;
    TH1* fT0RichDiff = nullptr;
    TH1* fT0PsdDiff  = nullptr;
    TH2* fT0PsdDiffCharge = nullptr;

    TH2* fT0StsDiffEvo  = nullptr;
    TH2* fT0MuchDiffEvo = nullptr;
    TH2* fT0TofDiffEvo  = nullptr;
    TH2* fT0RichDiffEvo = nullptr;
    TH2* fT0PsdDiffEvo  = nullptr;

    TH2* fT0StsDiffEvoLong  = nullptr;
    TH2* fT0MuchDiffEvoLong = nullptr;
    TH2* fT0TofDiffEvoLong  = nullptr;
    TH2* fT0RichDiffEvoLong = nullptr;
    TH2* fT0PsdDiffEvoLong  = nullptr;

    Double_t fdStartTime = -1;
    TProfile* fT0StsMeanEvo  = nullptr;
    TProfile* fT0MuchMeanEvo = nullptr;
    TProfile* fT0TofMeanEvo  = nullptr;
    TProfile* fT0RichMeanEvo = nullptr;
    TProfile* fT0PsdMeanEvo  = nullptr;

    TH1* fT0T0Diff     = nullptr;
    TH1* fStsStsDiff   = nullptr;
    TH1* fMuchMuchDiff = nullptr;
    TH1* fTofTofDiff   = nullptr;
    TH1* fRichRichDiff = nullptr;
    TH1* fPsdPsdDiff   = nullptr;

    TH1* fT0Address = nullptr;
    TH1* fT0Channel = nullptr;

    TH2* fT0StsDpbDiff = nullptr;
    static const UInt_t kuMaxNbStsDpbs = 2;
    TH2* fT0StsDpbDiffEvo[kuMaxNbStsDpbs];
    TH1* fStsDpbCntsEvo[kuMaxNbStsDpbs];

    static const UInt_t kuMaxNbMuchDpbs = 6;
    TH2* fT0MuchRocDiff = nullptr;
    static const UInt_t kuMaxNbMuchAsics = 36;
    TH2* fT0MuchAsicDiff = nullptr;
    TH2* fT0MuchAsicDiffEvo[kuMaxNbMuchAsics];


    TString fOutFileName{"data/HistosPulserChecker.root"};

    ClassDef(CbmMcbm2019CheckPulser,1);
};

#endif // CBMMCBM2019CHECKPULSER_H