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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Sim/Fitting/FitStatus.h
//! @brief Defines class FitStatus.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifdef SWIG
#error no need to expose this header to Swig
#endif // SWIG
#ifndef BORNAGAIN_SIM_FITTING_FITSTATUS_H
#define BORNAGAIN_SIM_FITTING_FITSTATUS_H
#include "Sim/Fitting/FitObserver.h"
#include "Sim/Fitting/IterationInfo.h"
#include <functional>
#include <vector>
class FitObjective;
class FitPrintService;
namespace mumufit {
class MinimizerResult;
}
//! Contains status of the fitting (running, interupted etc) and all intermediate
//! information which has to be collected during the fit.
//! Owned by FitObjective.
class FitStatus {
public:
FitStatus(const FitObjective* fit_objective);
~FitStatus();
void setInterrupted();
bool isInterrupted() const;
bool isCompleted() const;
void update(const mumufit::Parameters& params, double chi2);
void initPrint(int every_nth);
void addObserver(int every_nth, fit_observer_t&&);
IterationInfo iterationInfo() const { return m_iteration_info; }
mumufit::MinimizerResult minimizerResult() const;
//! Should be explicitly called on last iteration to notify all observers.
void finalize(const mumufit::MinimizerResult& result);
private:
enum StatusCode { IDLE, RUNNING, COMPLETED, FAILED, INTERRUPTED };
StatusCode m_code;
FitObserver<FitObjective> m_observers;
std::unique_ptr<FitPrintService> m_print_service;
const FitObjective* m_fit_objective;
IterationInfo m_iteration_info;
std::unique_ptr<mumufit::MinimizerResult> m_minimizer_result;
};
#endif // BORNAGAIN_SIM_FITTING_FITSTATUS_H
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