/*
 * RefitTrackAction.h
 *
 *  Created on: 10/may/2010
 *      Author: N. Mori
 */

#ifndef REFITTRACKACTION_H_
#define REFITTRACKACTION_H_

#include "../CollectionAction/CollectionAction.h"
#include <TRandom3.h>

/*! @brief Track refitting.
 *
 * This action refits the TRK track using only level 2 data. This means that it will use the same
 * clusters which are associated to the track, with the possibility to mask or shift some of them.
 * For a complete reprocess and fit use #ReprocessTrackAction.
 */
class RefitTrackAction: public CollectionAction {
public:

  /*! @brief Constructor
   *
   * @param actionName The action's name.
   * @param spreadX The width of the gaussian spread applied to all the X view coordinates, in cm.
   * @param spreadY The width of the gaussian spread applied to all the Y view coordinates, in cm.
   * @param maskedViews The excluded views. 0 means that all the views will be used, while #T6X means that the
   *                    X view of the last tracker plane will be ignored. For other combinations, sum up the values
   *                    defined in #TRKLAYERS: T1X + T1Y will exclude the whole first plane, for example.
   * @param trkParamsFile The file containing the tracker parameters to be used. Default value corresponds to the standard
   *                      parameters used for data reduction.
   */
  RefitTrackAction(const char *actionName, float spreadX = 0., float spreadY = 0., int maskedViews = 0.,  TString trkParamsFile = "") :
    CollectionAction(actionName), _spreadX(spreadX), _spreadY(spreadY), _maskedViews(maskedViews), _trkParamsFile(trkParamsFile) {

  }

  /*! @brief Destructor. */
  ~RefitTrackAction() {
  }

  /* @brief The refitting procedure.
   *
   * This will refit the tracker track introducing the mask and spreads defined in the constructor.
   */
  void OnGood(PamLevel2 *event);

  /*! @brief The finalization procedure. */
  void Finalize() {

  }

private:

  float _spreadX, _spreadY;
  int _maskedViews;

  static TRandom3 *_r3;
  static long int _currEvent;

  float _xmBackup[6], _ymBackup[6];
  int _layerXBackup[6], _layerYBackup[6];

  TString _trkParamsFile;
  static TString _currTrkParamsFile;
};

#endif /* REFITTRACKACTION_H_ */