////////////////////////////////////////////////////////////////////////
/// \class RAT::Classifiers::SelectorClassifier
///
/// \brief  All classifiers with selectors derive from this
///
/// \author Phil G Jones <p.g.jones@qmul.ac.uk>\n
/// \author Evelina Arushanova <e.arushanova@qmul.ac.uk> -- contact person \n
/// \author Matt Mottram <m.mottram@qmul.ac.uk> -- contact person
///
/// REVISION HISTORY:\n
///     2014-03-27 : P G Jones - New file \n
///     2017-05-22 : J Caravaca - Add ability to daisy-chain selectors \n
///
/// \details Adds extra selector code
///
////////////////////////////////////////////////////////////////////////

#ifndef __RAT_Classifier_SelectorClassifier__
#define __RAT_Classifier_SelectorClassifier__

#include <RAT/Classifier.hh>
#include <RAT/DS/FitVertex.hh>

#include <vector>
#include <list>

namespace RAT
{

namespace PMTSelectors
{
  class PMTSelector;
}

namespace Classifiers
{

//Note virtual inheritance.
class SelectorClassifier : public virtual Classifier
{
public:
  /// Empty virtual destructor
  virtual ~SelectorClassifier() {}

  /// Add the given PMT selector the the list
  void AddPMTSelector( PMTSelectors::PMTSelector* selector ) { fSelectors.push_back( selector ); }

protected:
  // Invoke the selectors on the fPMTData to produce the fSelectedPMTData
  //
  // vertex is the vertex to select on
  void SelectPMTData( const DS::FitVertex& vertex );

  std::list<PMTSelectors::PMTSelector*> fSelectors; // List of selectors to be applied in order
  std::vector<FitterPMT> fSelectedPMTData; ///< Selected PMTs
};

} //::Classifier

} //::RAT

#endif