/** PndRichHitFinder.h
 **
 **/

#ifndef PNDRICHHITFINDER_H
#define PNDRICHHITFINDER_H

#include "PndRichDigi.h"
#include "FairTSBufferFunctional.h"
#include "FairGeoVector.h"
#include "FairGeoTransform.h"
#include "FairMCEventHeader.h"
#include "TVector3.h"
//#include "TRandom.h"
#include "TGeoMatrix.h"
#include "TGeoBBox.h"
#include "PndGeoHandling.h"

#include "PndRichGeo.h"
#include "PndRichPDHit.h"

#include <string>
#include <vector>

class TClonesArray;

class PndRichHitFinder : public FairTask
{
 public:

  /** Default constructor **/
  PndRichHitFinder();

  /** Standard constructor **/
  PndRichHitFinder(Int_t iVerbose);
  
  /** Named constructor **/
  PndRichHitFinder(const char* name, Int_t iVerbose);

  /** Destructor **/
  virtual ~PndRichHitFinder();


  /** Virtual method Init **/
  virtual void SetParContainers();
  virtual InitStatus Init();
  virtual InitStatus ReInit();

  /** Virtual method Exec **/
  virtual void Exec(Option_t* opt);

  virtual void FinishEvent();
  virtual void FinishTask();

  void SetPixelFactor(Int_t factor ){fPixelFactor = factor;}
  void SetPersistency(Bool_t v = kTRUE) { fPersistency = v; }
  
protected:
    
  Bool_t fDigiPixelMCInfo; // switch to turn on/off storing additional MC Info of Digis
  
  /** Input array of PndRichDigis **/
  TClonesArray* fDigiArray;

  /** Output array of PndRichPDHits **/
  TClonesArray* fPdHitArray;
   
  FairMCEventHeader* fMCEventHeader;

  void Register();
  void Reset();
  void ProduceHits();

  TString fInBranchName;
  Bool_t fPersistency;
  Int_t    fPixelFactor;
  Double_t fPixelSize;	// pixel size;
  Double_t fPixelGap;   // gap betwen neighboring pixels
  Double_t fPixelStep;
  Double_t fMcpActiveArea; // dimension of the active area of one MCP
  Int_t    fNpix;       // pixel rows in one one MCP
  Int_t fPixelHits;
  PndGeoHandling* fGeoH;
  PndRichGeo*  fGeo;
  Int_t fEventNr;
  PndRichDigi *fDigi;
  Int_t fHitNumber;

    Double_t fThreshold;
    Double_t petime;
    Double_t fTimeStep;
    Int_t fTimeGate;
    Int_t fInd;
    Int_t fIBuffer;
    Int_t fIBufferPrev;
    std::vector< Int_t > fBufferNumHits;
    std::vector< Double_t > fBufferStartTime;
    std::vector< std::vector<Double_t > > fHitsBuffer;

  BinaryFunctor* fStopFunctor;
  BinaryFunctor* fGapFunctor;

  std::vector<PndRichPDHit> fPDHitList;

  ClassDef(PndRichHitFinder,1);

};

#endif