/**
  * @RDE_HEADER@
  * PlaybackApp
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Fröbel, NLSE, 2018-04-18
  */

#include "playback_app.h"
#include "avs_app.h"

#include <AudioVideoManagement/avs_dialog.h>
#include <QtGlobal>


namespace AudioVideoManagement
{

PlaybackApp::PlaybackApp(const QString &dialogId, AvaControl *avaControl, AppType appType)
  : m_dialogId(dialogId)
  , m_autoHide(appType == AppType::AutoHide)
{
  if (appType != AppType::AlwaysHidden)
  {
    m_app.reset(new AvsApp(m_dialogId, avaControl));
    m_objectWrapper = new ObjectWrapper(nullptr);
    QObject::connect(m_app.get(), &AvsApp::signalVisible,
                     m_objectWrapper, &ObjectWrapper::signalVisible);
    QObject::connect(m_app.get(), &AvsApp::signalPause,
                     m_objectWrapper, &ObjectWrapper::signalPause);
    QObject::connect(m_app.get(), &AvsApp::signalResume,
                     m_objectWrapper, &ObjectWrapper::signalResume);
  }
}

PlaybackApp::~PlaybackApp()
{
  if (m_objectWrapper)
    m_objectWrapper->deleteLater();
}

void PlaybackApp::acquire()
{
  Q_ASSERT(!m_inUse);
  if (m_app)
    m_app->show();
  m_inUse = true;
}

void PlaybackApp::setGeometry(const QRect &geometry)
{
  Q_ASSERT(m_app);
  m_app->show(geometry);
}

void PlaybackApp::acquire(const QRect &geometry)
{
  Q_ASSERT(!m_inUse);
  setGeometry(geometry);
  m_inUse = true;
}

void PlaybackApp::release()
{
  Q_ASSERT(m_inUse);

  // Hint: when m_autoHide == true, m_app is set.
  // Otherwise (appType == Normal or AlwaysHidden) m_app might not be set (when appType == AlwaysHidden).
  if (m_autoHide)
    m_app->hide(true /* and close */); // implicitly releases all streams
  else if (m_app)
    m_app->releaseStreams();
  m_inUse = false;
}

void PlaybackApp::hide(bool andClose)
{
  Q_ASSERT(m_inUse);

  if (m_app)
    m_app->hide(andClose);
}



// PlaybackAppHandle
PlaybackAppHandle::PlaybackAppHandle(PlaybackApp *app)
  : m_app(app, [] (PlaybackApp *app_) { app_->release(); })
{
  Q_ASSERT(app);
  app->acquire();
}

PlaybackAppHandle::PlaybackAppHandle(PlaybackApp *app, const QRect &geometry)
  : m_app(app, [] (PlaybackApp *app_) { app_->release(); })
{
  Q_ASSERT(app);
  app->acquire(geometry);
}

} // namespace AudioVideoManagement