registry.h

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// Copyright (c) 2023 anabrid GmbH
// Contact: https://www.anabrid.com/licensing/
// SPDX-License-Identifier: MIT OR GPL-2.0-or-later
 
#pragma once
 
#ifdef ARDUINO
 
#include <ArduinoJson.h>
#include <map>
#include <string>
 
#include "carrier/carrier.h"
#include "handler.h"
#include "net/auth.h"
#include "utils/singleton.h"
 
namespace msg {
 
namespace handlers {
 
class DynamicRegistry : public utils::HeapSingleton<DynamicRegistry> {
  struct RegistryEntry { // "named tuple"
    MessageHandler *handler;
    net::auth::SecurityLevel clearance;
  };
 
  std::map<std::string, RegistryEntry> entries;
 
  int result_code_counter = 1, result_code_increment = 100;
 
public:
  MessageHandler *lookup(const std::string &msg_type); 
  net::auth::SecurityLevel requiredClearance(const std::string &msg_type);
 
  bool set(const std::string &msg_type, MessageHandler *handler, net::auth::SecurityLevel minimumClearance);
  bool set(const std::string &msg_type, int result_code_prefix, MessageHandler *handler,
           net::auth::SecurityLevel minimumClearance);
 
  void dump();                                    //< for debugging: Print Registry configuration to Serial
  void write_handler_names_to(JsonArray &target); 
 
  void init(carrier::Carrier &c); 
};
 
using Registry = DynamicRegistry;
 
} // namespace handlers
 
} // namespace msg
 
#endif // ARDUINO