/**
  * Websocket interface for building control unit
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Ehrlicher, SLSE, 2017-01-30
  */

#pragma once

#include <QObject>
#include <QQueue>
#include <QWebSocketServer>
#include <memory>
#include <logger.h>

namespace BuildingControlUnit
{
namespace Json
{
namespace Telegrams
{
class BaseTelegram;
}

class WebSocketHandler : public QObject
{
  Q_OBJECT
public:
  explicit WebSocketHandler(QObject *parent = nullptr);
  ~WebSocketHandler();

  bool init(quint16 listenPort);

  bool isConnected() const
  {
    return !m_webSockets.isEmpty();
  }
  bool sendTelegram(const Telegrams::BaseTelegram *tele, QWebSocket *wsDirect);

Q_SIGNALS:
  void telegramReceived(const std::shared_ptr<Telegrams::BaseTelegram> &tele);
  void webSocketConnected(QWebSocket *ws);
private Q_SLOTS:
  void onNewConnection();
  void onWebSocketDisconnected();
  void onTextMessageReceived(const QString &msg);
private:
  QWebSocketServer *m_webSocketServer;
  QSet<QWebSocket *> m_webSockets;
  LOGGER_T m_logger;
};

} // namespace Json
} // namespace BuildingControlUnit