Plots_OptimalityGap.h

//
// Created by henri on 23.10.24.
//
 
#ifndef IDOL_PLOTS_OPTIMALITYGAP_H
#define IDOL_PLOTS_OPTIMALITYGAP_H
 
#include "idol/mixed-integer/optimizers/callbacks/CallbackFactory.h"
#include "idol/mixed-integer/optimizers/callbacks/Callback.h"
#include "PlotManager.h"
 
namespace idol::Plots {
    class OptimalityGap;
}
 
class TCanvas;
class TGraph;
class TLegend;
 
class idol::Plots::OptimalityGap : public CallbackFactory {
    Manager& m_plot_manager;
public:
    class Strategy : public Callback {
        Manager& m_plot_manager;
        TCanvas* m_canvas = nullptr;
        TGraph* m_graph_bound = nullptr;
        TGraph* m_graph_obj = nullptr;
        int m_n_points_bound = 0;
        int m_n_points_obj = 0;
        std::optional<double> m_worst_bound;
        std::optional<double> m_worst_obj;
        std::optional<double> m_best_obj;
        std::optional<double> m_best_bound;
    protected:
        void initialize();
        void operator()(CallbackEvent t_event) override;
    public:
        explicit Strategy(Manager& t_plot_manager);
    };
 
    explicit OptimalityGap(Manager& t_plot_manager) : m_plot_manager(t_plot_manager) {}
 
    Callback *operator()() override {
        return new Strategy(m_plot_manager);
    }
 
    [[nodiscard]] CallbackFactory *clone() const override {
        return new OptimalityGap(*this);
    }
};
 
#endif //IDOL_PLOTS_OPTIMALITYGAP_H