//************************************************************************//
//									  //
//  Copyright 2013 Bertram Kopf (bertram@ep1.rub.de)			  //
//  	      	   Julian Pychy (julian@ep1.rub.de)			  //
//          	   - Ruhr-Universität Bochum 				  //
//									  //
//  This file is part of Pawian.					  //
//									  //
//  Pawian is free software: you can redistribute it and/or modify	  //
//  it under the terms of the GNU General Public License as published by  //
//  the Free Software Foundation, either version 3 of the License, or 	  //
//  (at your option) any later version.	 	      	  	   	  //
//									  //
//  Pawian is distributed in the hope that it will be useful,		  //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of	  //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the	  //
//  GNU General Public License for more details.	      		  //
//									  //
//  You should have received a copy of the GNU General Public License     //
//  along with Pawian.  If not, see <http://www.gnu.org/licenses/>.	  //
//									  //
//************************************************************************//

// FlatteDynamics class definition file. -*- C++ -*-
// Copyright 2013 Bertram Kopf

#pragma once

#include <iostream>
#include <vector>
#include <complex>
#include <map>
#include <string>
#include <memory>

#include "PwaUtils/AbsDynamics.hh"

class Flatte;

class FlatteDynamics : public AbsDynamics{

public:
  FlatteDynamics(std::string& key, std::vector<Particle*>& fsParticles, Particle* mother, std::pair<Particle*, Particle*>& decPair1stChannel, std::pair<Particle*, Particle*>& decPair2ndChannel);
  virtual ~FlatteDynamics();

  virtual complex<double> eval(EvtData* theData, AbsXdecAmp* grandmaAmp, Spin OrbMom=0);
  
  virtual void getDefaultParams(fitParams& fitVal, fitParams& fitErr);
  virtual bool checkRecalculation(fitParams& theParamVal);
  virtual void updateFitParams(fitParams& theParamVal);
  virtual void setMassKey(std::string& theMassKey);

protected:
  //  std::string _key;
  std::string _g11Key;
  std::string _g22Key;

  double _currentMass;
  double _currentg11;
  double _currentg22;

  std::map<int, complex<double> >  _cachedMap; 
  std::shared_ptr<Flatte> _flattePtr;

private:

};