#define Analyser_cxx
#include "Analyser.h"
#include <TH2.h>
#include <TStyle.h>
#include <TCanvas.h>

#include "TChain.h"
#include "TClonesArray.h"
#include "external/ExRootAnalysis/ExRootTreeReader.h"
#include "external/ExRootAnalysis/ExRootResult.h"
#include "external/ExRootAnalysis/ExRootTreeBranch.h"
#include "external/ExRootAnalysis/ExRootUtilities.h"
#include "classes/DelphesClasses.h"
#include "TSystem.h"

#include <fstream>



void Analyser::Loop(string fileToOpen,string fileToWrite)
{
  using namespace std;

  double lumi=1.0; ////1 pb-1


  ifstream infile;
  infile.open(fileToOpen.c_str(), ifstream::in );
  char infilename[200];
  TChain chain("Delphes");
  while(!infile.eof()){
    infile >> infilename;
    cout<<"infilename = "<<infilename<<endl;
    if(strncmp(infilename,"#",1)==0)
      {
	continue;
      }
    chain.Add(infilename);
  }//while(!datafile.eof())    
  
  
  if (&chain == 0) return;

  
  // Create object of class ExRootTreeReader
  ExRootTreeReader *treeReader = new ExRootTreeReader(&chain);

  cout<<"Initialized ExRootTreeReader"<<endl;

  Long64_t numberOfEntries = treeReader->GetEntries();
  cout<<"number of entries : "<<numberOfEntries<<endl;


}