// (C) 2005 Max Howell (max.howell@methylblue.com)
// See COPYING file for licensing information

#include <kurl.h>
#include "mxcl.library.h"
#include "theStream.h"
#include <xine.h>
#include "xineEngine.h"

namespace Codeine
{
   #define e VideoWindow::s_instance

   KConfig*
   TheStream::profile()
   {
//TODO a unique id for discs, and then even to also record chapters etc.
//       if( url().protocol() == "dvd" )
//          return Codeine::config( QString( "dvd:/" ) + prettyTitle() );
//       else
         return Codeine::config( url().prettyURL() );
   }

   const KURL&
   TheStream::url()
         { return e->m_url; }

   bool
   TheStream::canSeek()
         //FIXME!
         { return e->m_url.protocol() != "http"; }

   bool
   TheStream::hasAudio()
         { return xine_get_stream_info( e->m_stream, XINE_STREAM_INFO_HAS_AUDIO ); }

   bool
   TheStream::hasVideo()
         { return xine_get_stream_info( e->m_stream, XINE_STREAM_INFO_HAS_VIDEO ); }

   QSize
   TheStream::defaultVideoSize()
   {
      return !e->m_stream
            ? QSize()
            : QSize(
                  xine_get_stream_info( e->m_stream, XINE_STREAM_INFO_VIDEO_WIDTH ),
                  xine_get_stream_info( e->m_stream, XINE_STREAM_INFO_VIDEO_HEIGHT ) );
   }

   int TheStream::aspectRatio()
         { return xine_get_param( e->m_stream, XINE_PARAM_VO_ASPECT_RATIO ); }

   int TheStream::subtitleChannel()
         { return xine_get_param( e->m_stream, XINE_PARAM_SPU_CHANNEL ); }

   int TheStream::audioChannel()
         { return xine_get_param( e->m_stream, XINE_PARAM_AUDIO_CHANNEL_LOGICAL ); }

   QString
   TheStream::prettyTitle()
   {
      const KURL &url      = e->m_url;
      const QString artist = QString::fromUtf8( xine_get_meta_info( e->m_stream, XINE_META_INFO_ARTIST ) );
      const QString title  = QString::fromUtf8( xine_get_meta_info( e->m_stream, XINE_META_INFO_TITLE ) );

      if (hasVideo() && !title.isEmpty())
         return title;
      else if (!title.isEmpty() && !artist.isEmpty())
         return artist + " - " + title;
      else if (url.protocol() != "http" && !url.fileName().isEmpty()) {
         const QString n = url.fileName();
         return KURL::decode_string( n.left( n.findRev( '.' ) ).replace( '_', ' ' ) ); }
      else
         return url.prettyURL();
   }


   static inline QString
   entryHelper( const QString &plate, const QString &s1, const QString &s2 )
   {
      return s2.isEmpty() ? s2 : plate.arg( s1 ).arg( s2 );
   }

   static inline QString
   sectionHelper( const QString &sectionTitle, const QStringList &entries )
   {
      QString s;

      foreach( entries )
         if( !(*it).isEmpty() )
            s += *it;

      return s.isEmpty() ? s : "<h2>" + sectionTitle + "</h2>" + s;
   }

   QString
   TheStream::information()
   {
      #define meta( x ) xine_get_meta_info( e->m_stream, x )
      #define info( x, y ) x.arg( xine_get_stream_info( e->m_stream, y ) )
      #define simple( x ) QString::number( xine_get_stream_info( e->m_stream, x ) )

      const QString plate = "<p><b>%1</b>: %2</p>";
      QString s;

      s += sectionHelper( i18n("Metadata"),
         QStringList()
            << entryHelper( plate, i18n("Title"), meta( XINE_META_INFO_TITLE ) )
            << entryHelper( plate, i18n("Comment"), meta( XINE_META_INFO_COMMENT ) )
            << entryHelper( plate, i18n("Artist"), meta( XINE_META_INFO_ARTIST ) )
            << entryHelper( plate, i18n("Genre"), meta( XINE_META_INFO_GENRE ) )
            << entryHelper( plate, i18n("Album"), meta( XINE_META_INFO_ALBUM ) )
            << entryHelper( plate, i18n("Year"), meta( XINE_META_INFO_YEAR ) ) );

      s += sectionHelper( i18n("Audio Properties"),
         QStringList()
            << entryHelper( plate, i18n("Bitrate"), info( i18n("%1 bps"), XINE_STREAM_INFO_AUDIO_BITRATE ) )
            << entryHelper( plate, i18n("Sample-rate"), info( i18n("%1 Hz"),  XINE_STREAM_INFO_AUDIO_SAMPLERATE ) ) );

      s += sectionHelper( i18n("Technical Information"),
         QStringList()
            << entryHelper( plate, i18n("Video Codec"), meta( XINE_META_INFO_VIDEOCODEC ) )
            << entryHelper( plate, i18n("Audio Codec"), meta( XINE_META_INFO_AUDIOCODEC ) )
            << entryHelper( plate, i18n("System Layer"), meta( XINE_META_INFO_SYSTEMLAYER ) )
            << entryHelper( plate, i18n("Input Plugin"), meta( XINE_META_INFO_INPUT_PLUGIN  ))
            << entryHelper( plate, i18n("CDINDEX_DISCID"), meta( XINE_META_INFO_CDINDEX_DISCID ) ) );

      QStringList texts;
      texts << "BITRATE" << "SEEKABLE" << "VIDEO_WIDTH" << "VIDEO_HEIGHT" << "VIDEO_RATIO" << "VIDEO_CHANNELS" << "VIDEO_STREAMS" << "VIDEO_BITRATE" << "VIDEO_FOURCC" << "VIDEO_HANDLED" << "FRAME_DURATION" << "AUDIO_CHANNELS" << "AUDIO_BITS" << "-AUDIO_SAMPLERATE" << "-AUDIO_BITRATE" << "AUDIO_FOURCC" << "AUDIO_HANDLED" << "HAS_CHAPTERS" << "HAS_VIDEO" << "HAS_AUDIO" << "-IGNORE_VIDEO" << "-IGNORE_AUDIO" << "-IGNORE_SPU" << "VIDEO_HAS_STILL" << "MAX_AUDIO_CHANNEL" << "MAX_SPU_CHANNEL" << "AUDIO_MODE" << "SKIPPED_FRAMES" << "DISCARDED_FRAMES";

      s += "<h2>Other</h2>";
      for( uint x = 0; x <= 28; ++x )
         s += entryHelper( plate, texts[x], simple( x ) );

      #undef meta
      #undef info
      #undef simple

      return s;
   }

   #undef e
}