//////////////////////////////////////////////////////////////////
//
// Abstract Base Class for the Track Fitter written by Y.Fujii
// Each Concret class should inherit this class
// !!!! Should carefully check the capability of IReconTrack for our tracking purpose !!!!
//
//////////////////////////////////////////////////////////////////

#ifndef TVTrackFitter_hxx_seen
#define TVTrackFitter_hxx_seen

#include <vector>

#include <TObject.h>
#include <TVector3.h>

#include <IAlgorithm.hxx>
#include <IAlgorithmResult.hxx>
#include <ICOMETLog.hxx>

#include <IHandle.hxx>
#include <ICOMETEvent.hxx>
#include <IReconTrack.hxx>
#include <IReconTrackCand.hxx>

class IVTrackFitter : public COMET::IAlgorithm {
public:
    IVTrackFitter(const char* name, const char* title);
    virtual ~IVTrackFitter();

    /// Main task called by `ICOMETReconLoopFunction`
    /// This method is filled in derived classes
    virtual COMET::IHandle<COMET::IAlgorithmResult> Process(const COMET::IAlgorithmResult& input) = 0;

    /// load the event
    virtual int  Load(COMET::ICOMETEvent& anEvent) = 0;

    /// save the event
    virtual int  Save(COMET::ICOMETEvent* anEvent) = 0;

    /// called at the begin of run or else (should not be in event-by-event)
    virtual int  Init() = 0;

    /// called at the end of run or else (should not be in event-by-event)
    virtual int  Finish() = 0;

    /// called at the begin of each event
    virtual int  BeginOfEvent() = 0;

    /// called at the end of each event
    virtual int  EndOfEvent() = 0;

protected:
    TString fName;
};
#endif