diagnostics_log.hpp

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#pragma once

 
#include <filesystem>
#include <fstream>
#include <optional>
 
#include "orrery/core/diagnostics.hpp"
#include "orrery/core/types.hpp"
 
namespace orrery::sim {

class DiagnosticsLog {
public:
    explicit DiagnosticsLog(const std::filesystem::path& path);

    void record(core::Index step, core::Real time, const core::Diagnostics& diagnostics);

    [[nodiscard]] std::optional<core::Real> reference_energy() const noexcept {
        return reference_energy_;
    }
 
    [[nodiscard]] bool ok() const { return file_.good(); }
 
    void flush() { file_.flush(); }
 
private:
    std::ofstream file_;
    std::optional<core::Real> reference_energy_;
};
 
} // namespace orrery::sim