// Copyright: 2021, Laseranimation Sollinger, Berlin, all rights reserved

#pragma once

#include <QMediaPlayer>
#include <QAudioOutput>
#include <QVideoWidget>
#include <QMainWindow>
#include <QLabel>
#include <QMediaMetaData>

class VideoServerWindow;

/**
 * This class encapsulates the QMediaPlayer
 * plus all the assorted infrastructure like
 * window, widgets and the like.
 *
 * This object MUST live in the main thread and
 * be instantiated ASAP, especially before the
 * code in QtMediaInterfaceImpl attempts to access
 * the static instance.
 */
class QMediaPlayerController : public QObject
{
  Q_OBJECT

public:
  QMediaPlayerController();

  QMediaPlayer* player();

public Q_SLOTS:
  /**
   * Before the VideoPlayer can be used in a meaningful
   * way, it *must* have an QVideoWidget instance that
   * is active. This seems to be a limitation of Qt.
   * Because we de-activate the widget in between to
   * show the Audio-Only-Message, this call restores
   * the necessary pre-condition.
   */
  void prepareVideoPlayer();

private:
  QMediaPlayer mMediaPlayer;
  QAudioOutput mAudioOutput;

  VideoServerWindow* mVideoWindow;
  QVideoWidget* mVideoWidget;
  QLabel* mAudioOnlyWidget;
  bool mNeedsNewVideoWidget;
};