#ifndef Podd_THcHelicityReader_h_
#define Podd_THcHelicityReader_h_

//////////////////////////////////////////////////////////////////////////
//
// THcHelicityReader
//
// Routines for decoding QWEAK helicity hardware
//
//////////////////////////////////////////////////////////////////////////

#include "Rtypes.h"
#include "THaHelicityDet.h"
#include "hcana/Logger.h"

class THaEvData;
class TDatime;
class TH1F;

class THcHelicityReader : public hcana::ConfigLogging<THaHelicityDet> {

public:
  THcHelicityReader();
  virtual ~THcHelicityReader();

  struct ROCinfo {
    Int_t roc;   // ROC to read out
    Int_t slot;  // Headers to search for (0 = ignore)
    Int_t index; // Index into buffer
  };

protected:
  // Used by ReadDatabase
  enum EROC { kHel = 0, kHelm, kMPS, kQrt, kTime, kCount };
  Int_t SetROCinfo(EROC which, Int_t roc, Int_t slot, Int_t index);

  virtual void  Clear(Option_t* opt = "");
  virtual Int_t ReadData(const THaEvData& evdata);
  Int_t         ReadDatabase(const char* dbfilename, const char* prefix, const TDatime& date,
                             int debug_flag = 0);
  void          Begin();
  void          End();

  ULong64_t fTITime;
  UInt_t    fTITime_last;
  UInt_t    fTITime_rollovers;

  // Reported Helicity status for the event
  Bool_t fIsMPS;
  Bool_t fIsQrt;
  Bool_t fIsHelp;
  Bool_t fIsHelm;

  Int_t fADCThreshold; // Threshold for On/Off of helicity signals

  ROCinfo fROCinfo[kCount];

  Int_t              fQWEAKDebug; // Debug level
  Bool_t             fHaveROCs;   // Required ROCs are defined
  Bool_t             fNegGate;    // Invert polarity of gate, TO DO implement this functionality
  static const Int_t NHISTR = 12;
  //  TH1F*    fHistoR[12];  // Histograms

private:
  ClassDef(THcHelicityReader, 0) // Helper class for reading QWEAK helicity data
};

#endif