registrar.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * Copyright (C) 2025 Marco Craveiro <marco.craveiro@gmail.com>
 *
 * 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 3 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 ORES_EVENTING_SERVICE_REGISTRAR_HPP
#define ORES_EVENTING_SERVICE_REGISTRAR_HPP
 
#include "ores.logging/make_logger.hpp"
#include "ores.eventing/domain/event_traits.hpp"
#include "ores.eventing/service/postgres_event_source.hpp"
#include "ores.eventing/service/event_channel_registry.hpp"
 
namespace ores::eventing::service {
 
class registrar {
private:
    [[nodiscard]] static auto& lg() {
        using namespace ores::logging;
        static auto instance = make_logger("ores.eventing.service.registrar");
        return instance;
    }
 
public:
    template<typename Event>
    static void register_mapping(postgres_event_source& source,
                                 const std::string& entity_name,
                                 const std::string& channel_name) {
        BOOST_LOG_SEV(lg(), logging::info)
            << "Registering event mapping: " << entity_name
            << " -> " << channel_name;
        source.register_mapping<Event>(entity_name, channel_name);
    }
 
    template<domain::has_event_traits Event>
    static void register_mapping(postgres_event_source& source,
                                 const std::string& entity_name,
                                 const std::string& channel_name,
                                 event_channel_registry& registry,
                                 const std::string& description) {
        BOOST_LOG_SEV(lg(), logging::info)
            << "Registering event mapping: " << entity_name
            << " -> " << channel_name;
        source.register_mapping<Event>(entity_name, channel_name);
        registry.register_channel<Event>(description);
    }
};
 
}
 
#endif