// Author     : Gero Flucke
// Date       : in 2002
// last update: $Date: 2004/08/05 11:37:04 $
// by         : $Author: flucke $

#ifndef __GFDSTARUNPERIODS_H
#define __GFDSTARUNPERIODS_H

 // ROOT includes
#include <TObject.h>

#include "TArrayD.h"
#include "TArrayI.h"

class GFDstarRunPeriods : public TObject{
public:
  explicit GFDstarRunPeriods(Int_t trigger, const char* period = NULL);
  virtual ~GFDstarRunPeriods();
  Bool_t SetTrigger(Int_t trigger, const char* period = NULL);

  Int_t GetNumPeriods() const {return fRunsDataLumi.GetSize();}
  Int_t GetFirstRun(Int_t period) const;
  Int_t GetLastRun(Int_t period) const;

  Double_t GetLumi(Int_t period) const;
  Double_t GetPrescale(Int_t period) const;
  //  Double_t GetRunPrescale(Int_t period) const;
  Int_t GetPeriod(Int_t run) const;

  TArrayI GetRunRanges() const {return fRuns;}
  TArrayD GetRunDataLumi() const {return fRunsDataLumi;}
  Double_t GetTotalLumi() const {return fRunsDataLumi.GetSum();}

  // miss-use of this class:
  static const Double_t fgStartDmSignal;
  static const Double_t fgEndDmSignal;
  static const Double_t fgStartDmBackgr;
  static const Double_t fgEndDmBackgr;

protected:
  inline Bool_t CheckPeriod(const char *method, Int_t period) const;
  Bool_t OutOfBounds(const char *method, Int_t period) const;
  TArrayI fRuns; 
  TArrayD fRunsDataLumi; // [i] is lumi for fRuns[i] => fRuns[i+1] // in nb-1
  TArrayD fPrescales;    // [i] is mean prescale trigger for fRuns[i] => fRuns[i+1]

  ClassDef(GFDstarRunPeriods,0)  // run periods of D* analysis
};

Bool_t GFDstarRunPeriods::CheckPeriod(const char* method, Int_t period) const
{
  // runs is 1 longer than number of periods (it contains borders!) 
  if(period >=0 && period < fRuns.GetSize()) return kTRUE; 
  return this->OutOfBounds(method, period);
}
#endif // __GFDSTARUNPERIODS_H