/**
  * @RDE_HEADER@
  * AvaState
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Fröbel, SLSE, 2017-07-24
  */

#pragma once

#include "ava_types.h"
#include "rt_state.h"
#include "avm_export.h"
#include <QString>
#include <QStringList>
#include <QMap>
#include <QObject>

namespace AudioVideoManagement
{

class AvaSession;

/**
 * This class observes the communication from AVS_Workstation to our application.
 * It observes the responses sent from AVS_Workstation to us as a result of commands
 * issued by possibly many client-side users of the single communication channel.
 * By observing the responses it builds up a mirrored state of the AVS_Workstation
 * in terms of our application's needs.
 *
 * After instantiating this class or after a re-connect, AvaState activly queries
 * the list of streams. After that point AvaState is passive only.
 *
 * @author Christian Fröbel
 */
class AVM_COMMON_EXPORT AvaState : public QObject
{
  Q_OBJECT

public:
  explicit AvaState(AvaSession *session);

  /** Resembles ScrEdAvInterface::getVideoProfile() */
  const QMap<QString, QMap<QString, AvaStreamState>> &videoProfile() const { return m_videoState; }

  QStringList currentLiveVideoStreams() const;

  // the first one is the selected one (if any)
  QStringList getRtProfile() const;

  RtState *rtState() { return &m_rtState; }
  
private slots:
  void onDisconnected();
  void onSessionEstablished();

  void onStreamStateReceived(const QString &dialogId, const QString &streamName, AvaStreamState);

  void onSumChannelStateReceived(AvaSumChannel sumChannel);
  void onRtChoiceUnitStateReceived(AvaRtPos pos, const QString &streamName, AvaRtButtonState buttonState);
  void onRtVolumeUserReceived(const QString &streamName, AvaVolume volume);

private:
  //AvaSession   *m_session;
  RtState       m_rtState;

  /** QMap<dialogId, QMap<streamName, AvaStreamState>> */
  QMap<QString, QMap<QString, AvaStreamState>>    m_videoState;
};

} // namespace AudioVideoManagement