//--------------------------------------------------------------------------
//
// Environment:
//      This software is part of the EvtGen package developed jointly
//      for the BaBar and CLEO collaborations.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/COPYRIGHT
//      Copyright (C) 1998      Caltech, UCSB
//
// Module: EvtGen/EvtModel.hh
//
// Description: 
//
// Modification history:
//
//    DJL/RYD     August 8, 1998         Module created
//
//------------------------------------------------------------------------

#ifndef EVTMODEL_HH
#define EVTMODEL_HH

#include "EvtGenBase/EvtDecayBase.hh"
#include "EvtGenBase/EvtStringHash.hh"
#include <map>
//#include <fstream.h>


//Class to read in and handle the decays available
//to EvtGen for each particle, and the model to be
//used for each one.

class EvtModel{

public:

  static EvtModel& instance();

  void registerModel(EvtDecayBase* prototype);
      
  int isModel(std::string name);

  EvtDecayBase* getFcn(std::string model_name);

  int isCommand(std::string cmd);
  void storeCommand(std::string cmd,std::string cnfgstr);


private:

  EvtModel();

  static EvtModel* _instance;

  std::map<std::string,EvtDecayBase*> _modelNameHash;
  std::map<std::string,EvtDecayBase*> _commandNameHash;


};


inline EvtModel& EvtModel::instance() {
  if ( _instance == 0 )  _instance=new EvtModel;
  return *_instance;
}


#endif