//
// Created by Kirill Zhukov on 20.04.2025.
//

#ifndef VERSIONMANAGER_H
#define VERSIONMANAGER_H

#include <atomic>
#include <fstream>
#include <filesystem>
#include <cstdint>
#include <iostream>
#include <string>

namespace usub::utils
{
    class VersionManager
    {
    public:
        explicit VersionManager(const std::string& dbname);

        ~VersionManager()
        {
            save_version();
        }

        uint64_t next_version();

        void flush();

    private:
        void ensure_metadata_dir();

        void load_version();

        void save_version();

    private:
        std::atomic<uint64_t> version{1};
        std::string db_name;
        std::string metadata_dir;
        std::string version_file;
    };
} // namespace usub::utils

#endif //VERSIONMANAGER_H