#include "calib.h"
#include "TFile.h"
#include "TTree.h"
#include "TBranch.h"
#include "TRandom.h"
#include <iostream>

using namespace std;

int test() {
  
  TFile * file  = TFile::Open("test.root","RECREATE");
  
  TTree * tree  = new TTree("CalibDB","Calibration");

  Calib * calib1 = new Calib;
  Calib * calib2 = new Calib;

  TBranch * branch1 = tree->Branch("calib1.", &calib1, 8000, 1);
  TBranch * branch2 = tree->Branch("calib2.", &calib2, 8000, 1);
  
  const int nVal = 10000;
  
  bool isItWorking = true;


  TRandom * random = new TRandom(0);

  for ( int i = 0; i < nVal; i++ ) {
    calib1->setEntries(100 * i + 1);
    calib1->setChiSquare( 1 * random->Gaus(1, 0.10) );
    calib1->setIOV(random->Uniform(0, 10), random->Uniform(10, 20) );
    calib1->setCycle( random->Uniform(0,100) );
    
  //   calib2->setEntries(60 * i + 1);
//     calib2->setChiSquare( 2 * random->Gaus(1, 0.10) );
//     calib2->setIOV(random->Uniform(100, 120), random->Uniform(120, 130) );
//     calib2->setCycle( random->Uniform(100,200) );  
    

    if ( ! isItWorking ) {
      branch1->Fill();
      branch2->Fill();
    } else {
      tree->Fill();
    }

  }

  tree->Write();
  file->Close();

  return 0;

}