/**
 * \file CbmRichRingFinderIdeal.h
 *
 * \brief Ideal ring finder in the RICH detector. It uses MC information
 * to attach RICH hits to rings.
 *
 * \author Supriya Das
 * \date 2006
 **/

#ifndef CBM_RICH_RING_FINDER_IDEAL
#define CBM_RICH_RING_FINDER_IDEAL

#include "CbmRichRingFinder.h"
#include <vector>

using namespace std;

class TClonesArray;
class CbmRichHit;
class CbmMCDataArray;
class CbmMCEventList;

class CbmRichRingFinderIdeal : public CbmRichRingFinder
{
private:
    CbmMCDataArray* fRichPoints;
    CbmMCDataArray* fMcTracks;
    CbmMCEventList* fEventList;
    TClonesArray* fRichDigis;
    
    
public:
    /**
     * \brief Default constructor.
     */
    CbmRichRingFinderIdeal();
    
    /**
     * \brief Destructor.
     */
    virtual ~CbmRichRingFinderIdeal();
    
    /**
     * \brief Inherited from CbmRichRingFinder.
     */
    virtual void Init();
    
    /**
     * Inherited from CbmRichRingFinder.
     */
    virtual int DoFind(
                       TClonesArray* hitArray,
                       TClonesArray* projArray,
                       TClonesArray* ringArray);
    
private:
    
    /**
     * \ brief Return evnetId from digiMatch corresponding to rich hit.
     */
    Int_t GetEventIdForRichHit(
            const CbmRichHit* richHit);


    /**
     * \brief Copy constructor.
     */
    CbmRichRingFinderIdeal(const CbmRichRingFinderIdeal&);
    
    /**
     * \brief Assignment operator.
     */
    CbmRichRingFinderIdeal& operator=(const CbmRichRingFinderIdeal&);
    
};

#endif