//************************************************************************//
//                                                                        //
//  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/>.       //
//                                                                        //
//************************************************************************//


#include <iostream>
#include <fstream>

#include "MinFunctions/AbsPawianMinimizer.hh"
#include "PwaUtils/GlobalEnv.hh"
#include "FitParams/FitParColBase.hh"
#include "ErrLogger/ErrLogger.hh"
#include "PwaUtils/GlobalEnv.hh"

AbsPawianMinimizer::AbsPawianMinimizer(std::shared_ptr<AbsFcn> theAbsFcnPtr, std::shared_ptr<AbsPawianParameters> upar) :
  _absFcn(theAbsFcnPtr)
  ,_startPawianParams(upar)
  ,_bestPawianParams(upar)
  ,_minimumReached(false)
  ,_finalLh(10000000.)
{
}


void AbsPawianMinimizer::dumpFitResult(){

  fitParCol finalFitParams=_absFcn->defaultFitValParms();
  std::vector<double> finalParamVec=_bestPawianParams->Params();
  GlobalEnv::instance()->fitParColBase()->getFitParamVal(finalParamVec, finalFitParams);

  fitParCol finalFitErrs=_absFcn->defaultFitErrParms();
  std::vector<double> finalParamErrorVec=_bestPawianParams->Errors();  
  GlobalEnv::instance()->fitParColBase()->getFitParamVal(finalParamErrorVec, finalFitParams);

  std::ostringstream finalResultname;

  std::string outputFileNameSuffix= GlobalEnv::instance()->outputFileNameSuffix();
  finalResultname << "finalResult" << outputFileNameSuffix << ".dat";
  
  std::ofstream theStream ( finalResultname.str().c_str() );
  GlobalEnv::instance()->fitParColBase()->dumpParams(theStream, finalFitParams, finalFitErrs);
}