//SPDX-FileCopyrightText: 2023 Yury Gubich <blue@macaw.me>
//SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <stdexcept>
#include <filesystem>
#include <optional>

#include <mysql.h>

#include "database/interface.h"
#include "utils/helpers.h"

namespace DB {
class MySQL : public Interface {
    class Statement;
    class Transaction;


public:
    MySQL ();
    ~MySQL () override;

    void connect (const std::string& path) override;
    void disconnect () override;
    void setCredentials (const std::string& login, const std::string& password) override;
    void setDatabase (const std::string& database) override;

    void migrate (uint8_t targetVersion) override;
    uint8_t getVersion () override;
    void setVersion (uint8_t version) override;

    unsigned int registerAccount (const std::string& login, const std::string& hash) override;
    std::string getAccountHash (const std::string& login) override;
    Session createSession (const std::string& login, const std::string& access, const std::string& renew) override;
    Session findSession (const std::string& accessToken) override;
    std::vector<Asset> listAssets (unsigned int owner) override;

private:
    void executeFile (const std::filesystem::path& relativePath);
    static std::optional<std::string> getComment (std::string& string);
    unsigned int lastInsertedId ();

protected:
    MYSQL connection;
    std::string login;
    std::string password;
    std::string database;

struct ResDeleter {
    void operator () (MYSQL_RES* res) {
        mysql_free_result(res);
    }
};
};
}