//-----------------------------------------------------------
// File and Version Information:
// $Id$
//
// Description:
//  Analysis task for lambdas
// 
//
// Environment:
//      Software developed for the PANDA Detector at FAIR.
//
// Author List:
//      Sverre Doerheim          (original author)
//
//
//-----------------------------------------------------------

#ifndef FOPI_LAMBDAPAUL_HH
#define FOPI_LAMBDAPAUL_HH

// Base Class Headers ----------------
#include "FairTask.h"

// Collaborating Class Headers -------
#include <ostream> // remove if you do not need streaming op
#include <vector> 
#include <map> 

// Collaborating Class Declarations --

class TClonesArray;
class GFRecoHitFactory;
class TH1D;
class TH2D;
class TH2I;
class TLorentzVector;
class GFTrack;
class GFRecoHitFactory;
class GFRavePropagator;
class GFRaveVertexFactory;
class GFRaveVertex;
class TVector3;
class TDatabasePDG;

class FopiLambdaAnaTask_Paul : public FairTask {
public:

  // Constructors/Destructors ---------
  FopiLambdaAnaTask_Paul();
  virtual ~FopiLambdaAnaTask_Paul();

  // Operators
  
  // Accessors -----------------------
  
  
  // Modifiers -----------------------
  void SetTrackBranchName(const TString& name) {fTrackBranchName=name;}
  void SetVtxOutBranchName(const TString& name) {fVtxOutBranchName=name;}
  void SetCandOutBranchName(const TString& name) {fCandName=name;}
  void SetPersistence(Bool_t opt=kTRUE) {fPersistence=opt;}
  void SetVerbose(Bool_t v=kFALSE) {fVerbose = 0; if (v) fVerbose=1;}
  //vertexing
  void SetVtxUseVacuumPropagator(Bool_t opt = true) {fVtxUseVacuumPropagator = opt;} // use the rave::Vacuum propagator instead of GFRavePropagator
  void SetVtxMethod(const TString& method){
    // TString to std::string
    std::string stdMethod(method.Data());
    fVtxMethod = stdMethod;
  }
  virtual InitStatus Init();

  virtual void Exec(Option_t* opt);

  
 private:

  Int_t nEv;
  double fMatchDistance;   // lookup distance in cm
  
  // Private Data Members ------------
  TString fTrackBranchName;
  TString fVtxOutBranchName;
  TString fCandName;
 
  Bool_t fPersistence;
  Int_t fVerbose;
  TDatabasePDG *fPDG; //!
  TClonesArray* fTrackArray;
  TClonesArray* fVtxOutArray;
  TClonesArray* fLambdaOutArray;

  GFRaveVertexFactory* fVertexFactory;
  std::vector < GFRaveVertex* > * fVertexBuffer;
  std::vector < std::vector< GFTrack* > > fVtxTrackBuffer;
  std::string fVtxMethod; // vertex reconstruction method
  Bool_t fVtxUseVacuumPropagator; // use the rave::Vacuum propagator instead of GFRavePropagator
  ClassDef(FopiLambdaAnaTask_Paul,1);
  
};

#endif