/*
 * EffCollection.cpp
 *
 *  Created on: 10/ago/2009
 *      Author: Nicola Mori
 */

/*! @file EffCollection.cpp The EffCollection class implementation file. */

#include "EffCollection.h"

EffCollection::EffCollection(const char *collectionName, TString outFileBase) :
  VerboseCollection(collectionName), _selCollection("selCollection"), _detCollection("detCollection"), _outFileBase(
      outFileBase), _det(0), _sel(0) {

}

void EffCollection::AddDetectorCut(PamCut &cut) {
  _detCollection.AddCut(cut);
}

void EffCollection::AddSelectionCut(PamCut &cut) {
  _selCollection.AddCut(cut);
}

void EffCollection::AddDetectorAction(CollectionAction &action) {
  _detCollection.AddAction(action);
}

void EffCollection::AddSelectionAction(CollectionAction &action) {
  _selCollection.AddAction(action);
}

int EffCollection::ApplyCut(PamLevel2 *event) {

  _nEv++;
  if (_selCollection.ApplyCut(event) == CUTOK) {
    _sel++;
    if (_detCollection.ApplyCut(event) == CUTOK) {
      _det++;
      _nGood++;
      return CUTOK;
    }
  }

  return 0;
}

void EffCollection::Finalize() {
  // Let's add all the cuts to the vector of the collection before calling VerboseCollection::Finalize
  for (unsigned int i = 0; i < _selCollection.GetSize(); i++)
    _cuts.push_back(_selCollection.GetCut(i));
  for (unsigned int i = 0; i < _detCollection.GetSize(); i++)
    _cuts.push_back(_detCollection.GetCut(i));
  // Now all the cuts are in place, and VerboseCollection can print its report
  VerboseCollection::Finalize();

  // Add some info about efficiency
  float eff;
  if (_sel != 0.)
    eff = (float)_det / (float)_sel;
  else
    eff = 0.;
  cout << "    ****** Efficiency informations ******\n";
  cout << "    Detector cuts:\n";
  for (unsigned int i = 0; i < _detCollection.GetSize(); i++)
    cout << "      - " << _detCollection.GetCut(i)->GetName() << "\n";
  cout << "    Total detector efficiency: " << eff << endl;

  // Write the output file
  if (_outFileBase != "") {
    ofstream outTextFile((_outFileBase + "-eff.txt").Data(), ios_base::out);
    outTextFile << _det << "    " << _sel << "    " << eff << endl;
    outTextFile.close();
  }

}