connectwindow.h

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/*
 # Copyright (c) 2013 - OpenSLX Project, Computer Center University of
 # Freiburg
 #
 # This program is free software distributed under the GPL version 2.
 # See http://openslx.org/COPYING
 #
 # If you have any feedback please consult http://openslx.org/feedback and
 # send your suggestions, praise, or complaints to feedback@openslx.org
 #
 # General information about OpenSLX can be found at http://openslx.org/
 # ---------------------------------------------------------------------
 # - Allow user to connect/disconnect to/from server
 */

#ifndef PVSCONNECTWINDOW_H_
#define PVSCONNECTWINDOW_H_

#include <QWidget>
#include <QMap>
#include <QUdpSocket>
#include <QSslSocket>
#include "../../shared/networkmessage.h"
#include "../net/serverdiscovery.h"
#include "../util/room.h"

namespace Ui
{
class ConnectWindow;
}

class ServerConnection;

class ConnectWindow : public QWidget
{
   Q_OBJECT

public:
   enum ConnectionState {
      Idle,
      Scanning,
      Connecting,
      AwaitingChallenge,
      AwaitingChallengeResponse,
      LoggingIn,
      InvalidSslHash, // Hash of challenge inside SSL connection invalid
      InvalidCert,
      Connected
   };

   explicit ConnectWindow(QWidget *parent = nullptr);
   ~ConnectWindow() override;

   void connectToSession(const QByteArray& sessionName, const QString &mgrIP);
   void setAvailableRooms(const QList<Room>& m);

private:
   Ui::ConnectWindow *_ui;
   int               _hashSslErrorCount;
   ServerDiscovery   _serverDiscovery;
   ServerConnection* _pendingConnection;
   ConnectionState   _state;
   QByteArray        _currentSession;
   QString           _currentIp;
   QString           _defaultSessionName;
   NetworkMessage    _packet;
   bool              _tryReconnect{};
   int               _timerHide;

   void updateUserInterface();

protected:
   void timerEvent(QTimerEvent* event) override;
   void closeEvent(QCloseEvent *e) override;
   void showEvent(QShowEvent* event) override;

protected slots:
   void onBtnConnection();
   void onBtnHide();

   void onRoomSelection(int index);

   void onConnectionStateChange(ConnectWindow::ConnectionState state);
   void onConnectionClosed(QObject* connection);
   void onConnectionDisconnected(ServerConnection* connection);
   // void onUdpReadyRead();
   void onServerDetected(const QString& host, quint16 port, const QByteArray& sessionName, const QByteArray& certHash, bool autoConnect);

public slots:
   void DoConnect();
   void DoDisconnect();

   void doShow();
signals:
   void disconnect();
   void connected(ServerConnection* connection);
};

#endif