/// \class RAT::RetriggerCut
///
/// \brief  Applying the datacleaning part of Retrigger cut based on
///         the LIVETIME_CUT[retriggercut] table.
///
/// \author Aobo Li <liaobo77@bu.edu>
/// \contact  Aobo Li <liaobo77@bu.edu>
///
/// REVISION HISTORY:\n
///    17 October  2018 : Aobo Li - First Version(with Livetime 2.0)
///
///  \details  This processor applies the datacleaning part of retrigger cut,
///            and updating the bitmask accordingly, but does not calculate its livetime.
///            the livetime of retrigger cut is calculated in LivetimeCuts.cc
///
////////////////////////////////////////////////////////////////////
#ifndef __RAT_RetriggerCut__
#define __RAT_RetriggerCut__

#include <RAT/Processor.hh>
#include <RAT/DataCleaningProc.hh>
#include <RAT/DS/Entry.hh>
#include <RAT/DB.hh>
#include <RAT/DS/UniversalTime.hh>

namespace RAT {

  class RetriggerCut: public DataCleaningProc {
    public:
      RetriggerCut() : DataCleaningProc("retriggercut",1){};
      virtual ~RetriggerCut(){};
      virtual Processor::Result DSEvent(DS::Run& run, DS::Entry& ds);
      void BeginOfRun(DS::Run& run);

    protected:
      virtual Processor::Result Event(DS::Entry& ds, DS::EV& ev);
      //This method identifies retrigger events, and update the first event bit
      //of each retrigger stream, and store its livetime for further analysis.
      bool RetriggerIdentifier(DS::EV& ev);

      //This method check the correspondence of each start event and end event of a cut livetime period.
      //With this method, we can make sure the start and end pairs in fCutStart and fCutEnd are one-to-one
      //correspondent.
      bool CorrespondenceCheck(int eventSet[2], std::vector<int>& firstArray, std::vector<int>& secondArray);

      //Parameters for applying Retrigger livetime cut:
      int fRetriggerCutGTID[2];
      int firstEventBit;
      int retriggerBit;
      bool foundCut;
      std::vector<int> fFirstRetriggerReadout;
      std::vector<int> fLastRetriggerReadout;
  };


} // namespace RAT
#endif