Delivery.hpp

// SPDX-FileCopyrightText: 2025 Vincent Leroy
// SPDX-License-Identifier: MIT
//
// This file is part of dfx.
//
// Licensed under the MIT License. See the LICENSE file in the project root
// for full license information.
 
#pragma once
 
// Standard includes
#include <memory>
 
namespace dfx::Core
{
class Node;
class InputPort;
class OutputPort;
class Message;
 
using NodePtr    = std::shared_ptr<Node>;
using MessagePtr = std::unique_ptr<Message>;
} // !namespace dfx::Core
 
namespace dfx::Hooks
{
class Delivery
{
public:
    enum class HookResult
    {
        Proceed, 
        Skip,    
        Fail,    
    };
 
public:
    virtual ~Delivery() = default;

    virtual HookResult preDelivery(Core::NodePtr src, Core::OutputPort const & out,
                                   Core::NodePtr dst, Core::InputPort & in,
                                   Core::MessagePtr & message) = 0;

    virtual HookResult postDelivery(Core::NodePtr src, Core::OutputPort const & out,
                                    Core::NodePtr dst, Core::InputPort & in) = 0;
};
} // !namespace dfx::Hooks