/**
  * WebSocketServer to publish Events
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Ehrlicher, SLSE, 2017-02-06
  */

#pragma once

#include <QMap>
#include <QObject>
#include <QSet>
#include <QSqlDatabase>
#include <QVector>
#include <ExerciseEventManagement/eem_db_structs.h>
#include "logger.h"

class QTimer;
class QUrl;
class QWebSocket;
class QWebSocketServer;
namespace ExerciseEventManagement
{
class WebSocketEventServer : public QObject
{
  Q_OBJECT
public:
  WebSocketEventServer(const QSqlDatabase &db, QObject *parent = nullptr);
  ~WebSocketEventServer();

  bool listen(const QPair<quint16, quint16> &portRange);
  bool listen(quint16 port);
  quint16 listenPort() const;

  void sendEvent(const QJsonObject &obj);
private:
  void onNewConnection();
  void onSocketDisconnected();
  void onCleanupLiveHistory();
  void historyDataRequested(const QSqlDatabase &db, QWebSocket *ws, const QUrl &requestUrl);
private:
  QSet<QWebSocket *> m_liveSockets;
  QMap<qint64, QVector<QString>> m_liveHistory;
  QWebSocketServer *m_wsServer;
  QTimer *m_cleanupTimer;
  QSqlDatabase m_db;
  NGL::INGLLogger &m_logger;
};
} // namespace ExerciseEventManagement