EventListener.h

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/*
 * This is a part of the Uniot project.
 * Copyright (C) 2016-2023 Uniot <contact@uniot.io>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <Bytes.h>
#include <ClearQueue.h>
#include <IterableQueue.h>
 
#include "EventEmitter.h"
 
namespace uniot {
template <class T_topic, class T_msg, class T_data>
class EventListener : public EventEmitter<T_topic, T_msg, T_data> {
 public:
  virtual ~EventListener() = default;

  virtual type_id getTypeId() const override {
    return Type::getTypeId<EventListener<T_topic, T_msg, T_data>>();
  }

  EventListener *listenToEvent(T_topic topic);

  EventListener *stopListeningToEvent(T_topic topic);

  bool isListeningToEvent(T_topic topic);

  virtual void onEventReceived(T_topic topic, T_msg msg) = 0;
 
 private:
  ClearQueue<T_topic> mTopics;
};

using CoreEventListener = EventListener<unsigned int, int, Bytes>;
}  // namespace uniot