/*
 * SmartCollection.cpp
 *
 *  Created on: 14-mag-2009
 *      Author: Nicola Mori
 */

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

#include "SmartCollection.h"

void SmartCollection::AddAction(CollectionAction& action) {
  _actions.push_back(&action);
  _actionsPositions.push_back(GetSize() - 1);
}

CollectionAction *SmartCollection::GetAction(unsigned int iAction) {
  if (_actions.size() == 0)
    return NULL;
  if (iAction < 0 || iAction > _actions.size() - 1)
    return NULL;
  else
    return _actions[iAction];
}

void SmartCollection::Setup(PamLevel2 *events) {
  PamCutCollection::Setup(events);

  for (unsigned int i = 0; i < _actions.size(); i++) {
    _actions[i]->Setup(events);
  }
}

void SmartCollection::Finalize() {
  PamCutCollection::Finalize();

  for (unsigned int i = 0; i < _actions.size(); i++) {
    _actions[i]->Finalize();
  }
}

int SmartCollection::ApplyCut(PamLevel2 *event) {

  _nEv++;
  // Apply the cuts
  if (_cuts.size() == 0) {
    _nGood++;
    OnGood(event);
    return CUTOK;
  }

  unsigned int bunchEnd = -1;
  unsigned int nActions = 0;
  unsigned int firstActionOfBunch = -1;
  if (_actions.size() > 0) {
    // Set the bunch end to the position of the first action
    bunchEnd = _actionsPositions[0];
    // Set the position of the first action at the end of the bunch
    firstActionOfBunch = 0;
    // Set the number of actions at the end of this bunch of cuts
    nActions = 1;
    while (_actionsPositions[nActions] == bunchEnd)
      nActions++;
  }

  for (unsigned int icut = 0; icut < _cuts.size(); icut++) {
    if (_cuts[icut]->ApplyCut(event) != CUTOK) {
      // Check if there are actions at the end of the current bunch
      // (last bunch may have no actions at its end)
      if (bunchEnd >= icut) {
        for (unsigned int i = 0; i < nActions; i++) {
          _actions[firstActionOfBunch + i]->OnBad(event, icut);
        }
      }
      OnBad(event, icut);
      return icut;
    }
    else if (bunchEnd == icut) {
      // We are at the end of the bunch of cuts, so let's execute the actions
      for (unsigned int i = 0; i < nActions; i++) {
        _actions[firstActionOfBunch + i]->OnGood(event);
      }
      if (firstActionOfBunch + nActions < _actions.size()) {
        // Current bunch is done, but actions are not finished yet. Set up the next bunch.
        // Set the end of the new bunch and the number of actions at this end
        firstActionOfBunch += nActions;
        bunchEnd = _actionsPositions[firstActionOfBunch];
        nActions = 1;
        while (_actionsPositions[firstActionOfBunch + nActions] == bunchEnd)
          nActions++;
      }
    }
  }

  _nGood++;
  OnGood(event);
  return CUTOK;
}