typedefs.hxx

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/*
 * Copyright (C) 2024-2026 David C. Manuelda (StormBytePP)
 *
 * This file is part of StormByte-Network.
 *
 * StormByte-Network original source is dual-licensed:
 *
 * 1. GNU Lesser General Public License v3.0 (or later)
 *    You may redistribute and/or modify this file under the terms of the
 *    GNU Lesser General Public License as published by the Free Software
 *    Foundation, either version 3 of the License, or (at your option)
 *    any later version.
 *
 * 2. Commercial license
 *    Alternatively, this file may be used under the terms of a commercial
 *    license agreement with the copyright holder
 *    (David C. Manuelda <StormByte@gmail.com>).
 *
 * Both licenses apply only to original StormByte-Network source in this
 * repository. They do not cover other StormByte modules or any third-party
 * material shipped with this repository (including everything under
 * thirdparty/, and in particular the bundled StormByte Buffer tree), which
 * remains under its own license.
 *
 * Neither license grants any patent rights. Any patent licenses required
 * to use this software or third-party components must be obtained separately
 * from the patent holders.
 *
 * StormByte-Network 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with StormByte-Network. If not, see
 * <https://www.gnu.org/licenses/lgpl-3.0.html>.
 *
 * SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-StormByte-Commercial
 */
 
#pragma once
 
#include <StormByte/buffer/fifo.hxx>
#include <StormByte/buffer/consumer.hxx>
#include <StormByte/expected.hxx>
#include <StormByte/logger/log.hxx>
#include <StormByte/network/connection/protocol.hxx>
#include <StormByte/network/connection/rw.hxx>
#include <StormByte/network/connection/status.hxx>
#include <StormByte/network/exception.hxx>
#include <StormByte/network/transport/packet.hxx>
#include <StormByte/safe/pointers.hxx>
#include <StormByte/type_traits.hxx>
 
#ifdef WINDOWS
#include <winsock2.h>
#endif
 
#include <memory>
#include <utility>
 
namespace StormByte::Network {
    namespace Socket {
        class Socket;   
        class Client;   
    }
 
    namespace Connection {
        #ifdef UNIX
            using HandlerType = int;        
        #else
            using HandlerType = SOCKET;     
        #endif
    }
 
    using ExpectedBuffer = StormByte::Expected<Buffer::FIFO, ConnectionError>;              
    using ExpectedVoid = StormByte::Expected<void, ConnectionError>;                        
    using ExpectedClient = StormByte::Expected<std::shared_ptr<Socket::Client>, ConnectionError>;   
    using ExpectedReadResult = StormByte::Expected<Connection::Read::Result, ConnectionClosed>; 
    using PacketPointer = std::shared_ptr<Transport::Packet>;                               
 
    class DeserializePacketFunction {
        public:
            using OpcodeType = Transport::Packet::OpcodeType; 
            using InvokeFunction = PacketPointer (*)(void*, OpcodeType, Buffer::Consumer, StormByte::Safe::Shared<Logger::Log>); 
            using CloneFunction = void* (*)(const void*); 
            using DestroyFunction = void (*)(void*) noexcept; 
 
            DeserializePacketFunction() noexcept = default;
 
            template<typename Callable>
            requires (!StormByte::Type::SameAs<std::decay_t<Callable>, DeserializePacketFunction>
                && StormByte::Type::CopyConstructible<std::decay_t<Callable>>)
            DeserializePacketFunction(Callable&& callable):
                m_context(new std::decay_t<Callable>(std::forward<Callable>(callable))),
                m_invoke(&Invoke<std::decay_t<Callable>>),
                m_clone(&Clone<std::decay_t<Callable>>),
                m_destroy(&Destroy<std::decay_t<Callable>>) {}
 
            STORMBYTE_NETWORK_PUBLIC DeserializePacketFunction(const DeserializePacketFunction& other);
 
            STORMBYTE_NETWORK_PUBLIC DeserializePacketFunction(DeserializePacketFunction&& other) noexcept;
 
            STORMBYTE_NETWORK_PUBLIC ~DeserializePacketFunction() noexcept;
 
            STORMBYTE_NETWORK_PUBLIC DeserializePacketFunction& operator=(const DeserializePacketFunction& other);
 
            STORMBYTE_NETWORK_PUBLIC DeserializePacketFunction& operator=(DeserializePacketFunction&& other) noexcept;
 
            STORMBYTE_NETWORK_PUBLIC PacketPointer operator()(OpcodeType opcode, Buffer::Consumer payload,
                StormByte::Safe::Shared<Logger::Log> logger) const;
 
            explicit operator bool() const noexcept {
                return m_context != nullptr;
            }
 
        private:
            template<typename Callable>
            static PacketPointer Invoke(void* context, OpcodeType opcode, Buffer::Consumer payload,
                StormByte::Safe::Shared<Logger::Log> logger) {
                return (*static_cast<Callable*>(context))(opcode, std::move(payload), std::move(logger));
            }
 
            template<typename Callable>
            static void* Clone(const void* context) {
                return new Callable(*static_cast<const Callable*>(context));
            }
 
            template<typename Callable>
            static void Destroy(void* context) noexcept {
                delete static_cast<Callable*>(context);
            }
 
            void* m_context = nullptr; 
            InvokeFunction m_invoke = nullptr; 
            CloneFunction m_clone = nullptr; 
            DestroyFunction m_destroy = nullptr; 
    };
}