/*************************************************************************
 *
 *  This file is part of the ACT library
 *
 *  Copyright (c) 2024 Fabian Posch
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA  02110-1301, USA.
 *
 **************************************************************************
 */

#ifndef __DOWNLOADER_H__
#define __DOWNLOADER_H__

#include <thread>
#include <cluster/db_types.hpp>
#include <cluster/db_client.hpp>
#include "task_interface.hpp"

#define NOTHING_AVAILABLE_SLEEP_TIME 500ms

class Downloader {

    public:

    Downloader(db::db_credentials_t db_cred, TaskInterface& interface);

    void start();
    void join();

    private:

    void thread_run();
    bool fetch_tasks(size_t n);
    bool fetch_design(const db::uuid_t& id, std::string& design);
    void reopen_task(const db::uuid_t& id, bool halt);

    std::unique_ptr<std::thread> downloader_thread;
    std::unique_ptr<db::Connection> conn;

    TaskInterface& interface;

};

#endif