#include <string>
#include <iostream>

#include "TROOT.h"
#include "TFile.h"
#include "TH1D.h"

#include "JPhysics/JNeutrino.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to histogram neutrino interaction cross sections.
 * \author mdejong
 */
int main(int argc, char* argv[])
{
  using namespace std;

  string  outputFile;
  int     debug;

  try {

    JParser<> zap("Example program to histogram neutrino interaction cross sections.");

    zap['o'] = make_field(outputFile) = "neutrino.root";
    zap['d'] = make_field(debug)      = 0;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  using namespace JPP;


  TFile out(outputFile.c_str(), "recreate");

  TH1D h1("cc_nu",    NULL, 1000, 2.0, 7.0);
  TH1D h2("nc_nu",    NULL, 1000, 2.0, 7.0);
  TH1D h3("cc_nubar", NULL, 1000, 2.0, 7.0);
  TH1D h4("nc_nubar", NULL, 1000, 2.0, 7.0);

  for(int i = 1; i <= h1.GetNbinsX(); ++i) {

    const double x = h1.GetBinCenter(i);
    const double E = pow(10.0, x); 
    
    h1.SetBinContent(i, cc_nu   (E));
    h2.SetBinContent(i, nc_nu   (E));
    h3.SetBinContent(i, cc_nubar(E));
    h4.SetBinContent(i, nc_nubar(E));
  }

  out.Write();
  out.Close();
}