#ifndef _HEPEVTCONVERTER_H_
#define _HEPEVTCONVERTER_H_

/*
  ---- Delphes ----
  A Fast Simulator for general purpose LHC detector
  S. Ovyn ~~~~ severine.ovyn@uclouvain.be
  
  Center for Particle Physics and Phenomenology (CP3)
  Universite Catholique de Louvain (UCL)
  Louvain-la-Neuve, Belgium
*/

/// \file SmearUtil.h
/// \brief HEPEVTConverter class, and some generic definitions


#include <iostream>
#include <sstream>
#include <deque>
#include <fstream>
#include <vector>

#include "TLorentzVector.h"
#include "TRandom.h"

#include "Utilities/ExRootAnalysis/interface/BlockClasses.h"
#include "Utilities/ExRootAnalysis/interface/TSimpleArray.h"
#include "Utilities/CDFCones/interface/PhysicsTower.h"
#include "interface/DataConverter.h"
using namespace std;

//------------------------------------------------------------------------------
//
struct HEPEvent
{
 Int_t           Nevhep;
 Int_t           Nhep;
 Int_t           *Idhep;    //[Nhep]
 Int_t           *Jsmhep;   //[Nhep]
 Int_t           *Jsdhep;   //[Nhep]
 Float_t         *Phep;    //[Nhep][5]
 Float_t         *Vhep;    //[Nhep][4]
 Int_t           Irun;
 Int_t           Ievt;
 Float_t         Weight;
 Float_t         Xsecn;
 Int_t           Ifilter;
 Int_t           Nparam;
 Float_t         *Param;    //[Nparam]
};
//

//
class HEPTreeReader {

public:

  HEPTreeReader(TTree *tree, HEPEvent *event);
  ~HEPTreeReader();

  Long64_t GetEntries() const { return fChain ? static_cast<Long64_t>(fChain->GetEntries()) : 0; }
  Bool_t ReadEntry(Long64_t element);

private:

 void Notify();

 TTree *fChain;  // pointer to the analyzed TTree or TChain
 Int_t fCurrentTree; // current Tree number in a TChain
 HEPEvent *fEvent;
 deque< pair<TString, TBranch*> > fBranches;

};


class HEPEVTConverter : public DataConverter {

public:

  HEPEVTConverter(const string& inputFileList, const string& outputFileName);

};


#endif