#ifndef TP0DTrackSandMuonControlSample_h
#define TP0DTrackSandMuonControlSample_h

#include "TGraph.h"
#include "TH1F.h"
#include <IControlSampleBase.hxx>

// Class to select sand muon events based on P0D tracks. Selection criteria are
// 1. There is exactly one vertex in the P0D
// 2. The vertex contains exactly one track (actually a PID object, this is irrelevant).
// 3. The front end of the track is at the start of the P0D and 
//    the Z projection of the track is longer than fZCut
// 
class IP0DTrackSandMuonControlSample : public IControlSampleBase {
 public:
  IP0DTrackSandMuonControlSample();
  ~IP0DTrackSandMuonControlSample(){}

private:
  
  bool IsEventSelectedInternal(COMET::ICOMETEvent& event) ;
  void InitHistograms();

  // Z cut: accept only tracks with Z projection larger than this value
  Double_t fZCut;

  Double_t fTotPOT;
  Double_t fPrevPOT;
  Int_t    fNSelected;

  TGraph* gEventsPOT;
  TH1F *hNVtx, *hNTrk,*hTrkFront, *hTrkBack;
  TH1F *hNSelectedCycles;
  TH1F *hNTpc1Tracks, *hNTpc2Tracks, *hNTpc3Tracks;
  TH1F *hPOTDiff;

};

#endif