handler.h

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// Copyright (c) 2024 anabrid GmbH
// Contact: https://www.anabrid.com/licensing/
// SPDX-License-Identifier: MIT OR GPL-2.0-or-later
 
#pragma once
 
#include <ArduinoJson.h>
 
// Forward declaration to avoid dependency
namespace utils { struct StreamingJson; }
namespace net { namespace auth { struct AuthentificationContext; }}
 
namespace msg {
 
namespace handlers {
 
class MessageHandler {
public:
  constexpr static int not_implemented = -99;
  constexpr static int success = 0;
 
  int result_prefix = 0;
  constexpr int error(int internal_code) { return internal_code == success ? success : result_prefix + internal_code; }
 
  virtual int handle(JsonObjectConst msg_in, JsonObject &msg_out) {
    return not_implemented;
  }
 
  virtual int handle(JsonObjectConst msg_in, JsonObject &msg_out, net::auth::AuthentificationContext& user_context) {
    return not_implemented;
  }
 
  virtual int handle(JsonObjectConst msg_in, utils::StreamingJson& msg_out) {
    return not_implemented;
  }
 
};
 
 
} // namespace handlers
 
} // namespace msg