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

#ifndef RECOVERYLOG_H
#define RECOVERYLOG_H

#include <fstream>
#include <iostream>
#include <string>
#include <functional>
#include <filesystem>
#include "utils/hash/Hash128.h"
#include "core/Command.h"

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

        ~RecoveryLog();

        void log_put(const std::string& key, const std::string& value);

        void log_delete(const std::string& key);

        void log_command(const core::Command& cmd);

        void replay(const std::function<void(const core::Command&)>& callback) const;

        void clear();

    private:
        void ensure_metadata_dir() const;

    private:
        std::string db_name_;
        std::string metadata_dir_;
        std::string log_file_;
        std::ofstream log_out_;
    };
} // utils
// usub

#endif //RECOVERYLOG_H