config_file.hpp

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#pragma once

 
#include <cstddef>
#include <filesystem>
#include <iosfwd>
#include <span>
#include <stdexcept>
#include <string>
#include <string_view>
 
#include "orrery/sim/configuration.hpp"
 
namespace orrery::sim {

class ConfigurationError : public std::runtime_error {
public:
    ConfigurationError(const std::string& message, std::string origin, std::size_t line);

    [[nodiscard]] const std::string& origin() const noexcept { return origin_; }

    [[nodiscard]] std::size_t line() const noexcept { return line_; }
 
private:
    std::string origin_;
    std::size_t line_;
};

[[nodiscard]] Configuration parse_configuration(std::istream& in, std::string_view origin);

void apply_settings(Configuration& configuration, std::span<const std::string> assignments,
                    std::string_view origin);

[[nodiscard]] Configuration read_configuration_file(const std::filesystem::path& path);

void write_configuration(std::ostream& out, const Configuration& configuration);
 
} // namespace orrery::sim