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

/*! @file EffCollection.h The EffCollection class definition file. */

#ifndef EFFCOLLECTION_H_
#define EFFCOLLECTION_H_

#include "../VerboseCollection/VerboseCollection.h"

/*! @brief A verbose collection which computes the efficiency of a set of cuts.
 *
 * This class subdivides the cuts it contains into two classes: selection and detector
 * cuts; detector cuts are evaluated after selection cuts. The collection will compute the
 * efficiency of the whole detector cuts set evaluated using an efficiency sample selected
 * by the selection cuts. Actions will be divided in selection and detector actions as well:
 * adding a selection action, it will be placed after all the selection cuts inserted since
 * the action insertion, and before all detector cuts. Detector actions are placed after all
 * the cuts.
 * This class implements specific methods to add selection and detector cuts; cuts added
 * with the standard #AddCut method will be treated as detector cuts. The same for actions.
 *
 *
 */
class EffCollection: public VerboseCollection {

public:

  /*! @brief Constructor.
   *
   * @param collectionName The collection's name.
   * @param outFileBase The output file base name. If "", no file output will be produced; otherwise,
   *                    a file named outFilebase + "-eff.txt" will be produced, containing the number of
   *                    events surviving the detector cuts (1st column), the selection cuts (2nd column)
   *                    and the efficiency (3rd column).
   */
  EffCollection(const char *collectionName, TString outFileBase = "");

  /*! @brief Destructor. */
  ~EffCollection() {

  }

  /*! @brief Adds a detector cut to the collection.
   *
   * For EffCollection, cuts added wit #AddCut will be treated as detector cuts.
   *
   * @param cut The PamCut-derived object to add to the collection.
   */
  void AddCut(PamCut &cut) {
    AddDetectorCut(cut);
  }

  /*! @brief Adds a detector cut to the collection.
   *
   * Adds a detector cut. Calling #AddCut will add a detector cut as well, and not a
   * selection cut.
   * @param cut The PamCut-derived object to add to the collection.
   */
  void AddDetectorCut(PamCut &cut);

  /*! @brief Adds a selection cut to the collection.
   *
   * Adds a selection cut. Notice that calling #AddCut will add a detector cut , and not a
   * selection cut.
   * @param cut The PamCut-derived object to add to the collection.
   */
  void AddSelectionCut(PamCut &cut);

  /*! @brief Adds an action to the detector cuts queue.
   *
   * For EffCollection, actions added wit #AddAction will be inserted in the detector cuts queue.
   *
   * @param action The CollectionAction-derived object to add to the collection.
   */
  void AddAction(CollectionAction &action) {
    AddDetectorAction(action);
  }

  /*! @brief Adds an action to the detector cuts queue.
   *
   * Adds a detector action, ie., an action placed in the detector cuts queue. Calling #AddAction will
   * add a detector action as well, and not a selection action.
   *
   * @param action The CollectionAction-derived object to add to the collection.
   */
  void AddDetectorAction(CollectionAction &action);

  /*! @brief Adds an action to the selection cuts queue.
   *
   * Adds a selection action, ie., an action placed in the selection cuts queue. Notice that calling
   * #AddAction will add a detector action, and not a selection action.
   *
   * @param action The CollectionAction-derived object to add to the collection.
   */
  void AddSelectionAction(CollectionAction &action);

  /*! @brief Applies the selection and detector cuts to the current event.
   *
   * @param event The event to analyze.
   * @return CUTOK if the event survives all the selection and detector cuts.
   */
  int ApplyCut(PamLevel2 *event);

  /*TODO: redefine GetCut and the other methods to comply with the new selection/detector cuts structure. */

  /*! @brief The post analysis task.
   *
   */
  void Finalize();

protected:

  SmartCollection _selCollection;
  SmartCollection _detCollection;
  TString _outFileBase;
  unsigned int _det, _sel;

};

#endif /* EFFCOLLECTION_H_ */