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// $Id: G4RootNtupleManager.hh 70604 2013-06-03 11:27:06Z ihrivnac $

// Manager class for Root ntuples.
// It implements functions specific to Root ntuples.
//
// Author: Ivana Hrivnacova, 18/06/2013  (ivana@ipno.in2p3.fr)

#ifndef G4RootNtupleManager_h
#define G4RootNtupleManager_h 1

#include "G4VNtupleManager.hh"
#include "globals.hh"

#include "tools/wroot/ntuple"

#include <vector>

struct G4RootNtupleDescription;

namespace tools {
namespace wroot {
class directory;
}
}

class G4RootNtupleManager : public G4VNtupleManager
{
  friend class G4RootAnalysisManager;

  protected:
    G4RootNtupleManager(const G4AnalysisManagerState& state);
    virtual ~G4RootNtupleManager();

    // Functions specific to the output type
    //

    // Methods to manipulate ntuples  
    void CreateNtuplesFromBooking();
    G4bool IsEmpty() const;
    G4bool Reset();

    // Set methods
    void SetNtupleDirectory(tools::wroot::directory* directory);
    
    // Access methods
    tools::wroot::ntuple* GetNtuple() const;
    tools::wroot::ntuple* GetNtuple(G4int ntupleId) const;

    // Functions independent from the output type 
    //

    // Methods to create ntuples
    virtual G4int CreateNtuple(const G4String& name, const G4String& title);
    // Create columns in the last created ntuple
    virtual G4int CreateNtupleIColumn(const G4String& name);
    virtual G4int CreateNtupleFColumn(const G4String& name);
    virtual G4int CreateNtupleDColumn(const G4String& name);   
    virtual void  FinishNtuple();   
    // Create columns in the ntuple with given id
    virtual G4int CreateNtupleIColumn(G4int ntupleId, const G4String& name);
    virtual G4int CreateNtupleFColumn(G4int ntupleId, const G4String& name);
    virtual G4int CreateNtupleDColumn(G4int ntupleId, const G4String& name);   
    virtual void  FinishNtuple(G4int ntupleId);   

    // Methods to fill ntuples
    // Methods for ntuple with id = FirstNtupleId                     
    virtual G4bool FillNtupleIColumn(G4int columnId, G4int value);
    virtual G4bool FillNtupleFColumn(G4int columnId, G4float value);
    virtual G4bool FillNtupleDColumn(G4int columnId, G4double value);
    virtual G4bool AddNtupleRow();
    // Methods for ntuple with id > FirstNtupleId (when more ntuples exist)                      
    virtual G4bool FillNtupleIColumn(G4int ntupleId, G4int columnId, G4int value);
    virtual G4bool FillNtupleFColumn(G4int ntupleId, G4int columnId, G4float value);
    virtual G4bool FillNtupleDColumn(G4int ntupleId, G4int columnId, G4double value);
    virtual G4bool AddNtupleRow(G4int ntupleId);
    
    // Access methods
    virtual G4int GetNofNtuples() const;
   
  private:
    // methods
    //
    tools::wroot::ntuple::column<int>*    
      GetNtupleIColumn(G4int ntupleId, G4int columnId) const;
    tools::wroot::ntuple::column<float>*  
      GetNtupleFColumn(G4int ntupleId, G4int columnId) const;
    tools::wroot::ntuple::column<double>* 
      GetNtupleDColumn(G4int ntupleId, G4int columnId) const;

    virtual G4RootNtupleDescription*  GetNtupleInFunction(G4int id, 
                                        G4String function,
                                        G4bool warn = true,
                                        G4bool onlyIfActive = true) const;

    // data members
    //
    tools::wroot::directory*  fNtupleDirectory;
    std::vector<G4RootNtupleDescription*> fNtupleVector;
};    

// inline functions

inline void G4RootNtupleManager::SetNtupleDirectory(
                                    tools::wroot::directory* directory) {
  fNtupleDirectory = directory;
}    

inline G4int G4RootNtupleManager::GetNofNtuples() const
{ return fNtupleVector.size(); }


#endif