system_registry.hpp

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#pragma once
 
#include "../message_id.hpp"
#include "../message_registry.hpp"
#include "subscription_messages.hpp"
 
// Forward declaration for Module (breaks circular dependency)
namespace commrat {
    template<typename Registry, typename OutputDataT, typename InputModeT, typename... CommandTypes>
    class Module;
    
    template<typename Registry>
    class RegistryMailbox;
}
 
namespace commrat {
 
// ============================================================================
// System Message Registry
// ============================================================================
 
using SystemRegistry = MessageRegistry<
    SubscribeRequest,
    SubscribeReply,
    UnsubscribeRequest,
    UnsubscribeReply
>;
 
// ============================================================================
// Registry Builder - Creates Registry with Convenience Aliases
// ============================================================================
 
template<typename... UserMessageDefs>
class Registry {
public:
    // The actual MessageRegistry type
    using Type = MessageRegistry<
        SubscribeRequest,
        SubscribeReply,
        UnsubscribeRequest,
        UnsubscribeReply,
        UserMessageDefs...
    >;
    
    // Convenience aliases that users get automatically
    template<typename OutputDataT, typename InputModeT, typename... CommandTypes>
    using Module = commrat::Module<Type, OutputDataT, InputModeT, CommandTypes...>;
    
    using Mailbox = commrat::RegistryMailbox<Type>;
};
 
// ============================================================================
// Backward Compatibility Alias
// ============================================================================
 
template<typename... UserMessageDefs>
using CombinedRegistry = MessageRegistry<
    // System messages (always included)
    SubscribeRequest,
    SubscribeReply,
    UnsubscribeRequest,
    UnsubscribeReply,
    // User messages
    UserMessageDefs...
>;
 
} // namespace commrat