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/*
 *
 * $Id: k3bdvdcopyjob.cpp 690529 2007-07-21 10:51:47Z trueg $
 * Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
 *
 * This file is part of the K3b project.
 * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * See the file "COPYING" for the exact licensing terms.
 */

#include "k3bdvdcopyjob.h"
#include "k3blibdvdcss.h"

#include <k3breadcdreader.h>
#include <k3bdatatrackreader.h>
#include <k3bexternalbinmanager.h>
#include <k3bdevice.h>
#include <k3bdeviceglobals.h>
#include <k3bdevicehandler.h>
#include <k3bdiskinfo.h>
#include <k3bglobals.h>
#include <k3bcore.h>
#include <k3bgrowisofswriter.h>
#include <k3bversion.h>
#include <k3biso9660.h>
#include <k3bfilesplitter.h>
#include <k3bchecksumpipe.h>
#include <k3bverificationjob.h>

#include <kdebug.h>
#include <klocale.h>
#include <kio/global.h>

#include <tqfile.h>
#include <tqfileinfo.h>
#include <tqapplication.h>


class K3bDvdCopyJob::Private
{
public:
  Private()
    : doneCopies(0),
      running(false),
      canceled(false),
      writerJob(0),
      readcdReader(0),
      dataTrackReader(0),
      verificationJob(0),
      usedWritingMode(0),
      verifyData(false) {
    outPipe.readFromIODevice( &imageFile );
  }

  int doneCopies;

  bool running;
  bool readerRunning;
  bool writerRunning;
  bool canceled;

  K3bGrowisofsWriter* writerJob;
  K3bReadcdReader* readcdReader;
  K3bDataTrackReader* dataTrackReader;
  K3bVerificationJob* verificationJob;

  K3bDevice::DiskInfo sourceDiskInfo;

  K3b::Msf lastSector;

  int usedWritingMode;

  K3bFileSplitter imageFile;
  K3bChecksumPipe inPipe;
  K3bActivePipe outPipe;

  bool verifyData;
};


K3bDvdCopyJob::K3bDvdCopyJob( K3bJobHandler* hdl, TQObject* parent, const char* name )
  : K3bBurnJob( hdl, parent, name ),
    m_writerDevice(0),
    m_readerDevice(0),
    m_onTheFly(false),
    m_removeImageFiles(false),
    m_simulate(false),
    m_speed(1),
    m_copies(1),
    m_onlyCreateImage(false),
    m_ignoreReadErrors(false),
    m_readRetries(128),
    m_writingMode( K3b::WRITING_MODE_AUTO )
{
  d = new Private();
}


K3bDvdCopyJob::~K3bDvdCopyJob()
{
  delete d;
}


void K3bDvdCopyJob::start()
{
  jobStarted();
  emit burning(false);

  d->canceled = false;
  d->running = true;
  d->readerRunning = d->writerRunning = false;

  emit newTask( i18n("Checking Source Medium") );

  if( m_onTheFly &&
      k3bcore->externalBinManager()->binObject( "growisofs" )->version < K3bVersion( 5, 12 ) ) {
    m_onTheFly = false;
    emit infoMessage( i18n("K3b does not support writing on-the-fly with growisofs %1.")
		      .arg(k3bcore->externalBinManager()->binObject( "growisofs" )->version), ERROR );
    emit infoMessage( i18n("Disabling on-the-fly writing."), INFO );
  }

  emit newSubTask( i18n("Waiting for source medium") );

  // wait for a source disk
  if( waitForMedia( m_readerDevice,
		    K3bDevice::STATE_COMPLETE|K3bDevice::STATE_INCOMPLETE,
		    K3bDevice::MEDIA_WRITABLE_DVD|K3bDevice::MEDIA_DVD_ROM ) < 0 ) {
    emit canceled();
    d->running = false;
    jobFinished( false );
    return;
  }

  emit newSubTask( i18n("Checking source medium") );

  connect( K3bDevice::sendCommand( K3bDevice::DeviceHandler::DISKINFO, m_readerDevice ),
           TQT_SIGNAL(finished(K3bDevice::DeviceHandler*)),
           this,
           TQT_SLOT(slotDiskInfoReady(K3bDevice::DeviceHandler*)) );
}


void K3bDvdCopyJob::slotDiskInfoReady( K3bDevice::DeviceHandler* dh )
{
  if( d->canceled ) {
    emit canceled();
    jobFinished(false);
    d->running = false;
  }

  d->sourceDiskInfo = dh->diskInfo();

  if( dh->diskInfo().empty() || dh->diskInfo().diskState() == K3bDevice::STATE_NO_MEDIA ) {
    emit infoMessage( i18n("No source medium found."), ERROR );
    jobFinished(false);
    d->running = false;
  }
  else {
    if( m_readerDevice->copyrightProtectionSystemType() == 1 ) {
      emit infoMessage( i18n("Found encrypted DVD."), WARNING );
      // check for libdvdcss
      bool haveLibdvdcss = false;
      kdDebug() << "(K3bDvdCopyJob) trying to open libdvdcss." << endl;
      if( K3bLibDvdCss* libcss = K3bLibDvdCss::create() ) {
	kdDebug() << "(K3bDvdCopyJob) succeeded." << endl;
	kdDebug() << "(K3bDvdCopyJob) dvdcss_open(" << m_readerDevice->blockDeviceName() << ") = "
		  << libcss->open(m_readerDevice) << endl;
	haveLibdvdcss = true;

	delete libcss;
      }
      else
	kdDebug() << "(K3bDvdCopyJob) failed." << endl;

      if( !haveLibdvdcss ) {
	emit infoMessage( i18n("Cannot copy encrypted DVDs."), ERROR );
	d->running = false;
	jobFinished( false );
	return;
      }
    }


    //
    // We cannot rely on the kernel to determine the size of the DVD for some reason
    // On the other hand it is not always a good idea to rely on the size from the ISO9660
    // header since that may be wrong due to some buggy encoder or some boot code appended
    // after creating the image.
    // That is why we try our best to determine the size of the DVD. For DVD-ROM this is very
    // easy since it has only one track. The same goes for single session DVD-R(W) and DVD+R.
    // Multisession DVDs we will simply not copy. ;)
    // For DVD+RW and DVD-RW in restricted overwrite mode we are left with no other choice but
    // to use the ISO9660 header.
    //
    // On the other hand: in on-the-fly mode growisofs determines the size of the data to be written
    //                    by looking at the ISO9660 header when writing in DAO mode. So in this case
    //                    it would be best for us to do the same....
    //
    // With growisofs 5.15 we have the option to specify the size of the image to be written in DAO mode.
    //

    switch( dh->diskInfo().mediaType() ) {
    case K3bDevice::MEDIA_DVD_ROM:
    case K3bDevice::MEDIA_DVD_PLUS_R_DL:
    case K3bDevice::MEDIA_DVD_R_DL:
    case K3bDevice::MEDIA_DVD_R_DL_SEQ:
    case K3bDevice::MEDIA_DVD_R_DL_JUMP:
      if( !m_onlyCreateImage ) {
	if( dh->diskInfo().numLayers() > 1 &&
	    dh->diskInfo().size().mode1Bytes() > 4700372992LL ) {
	  if( !(m_writerDevice->type() & (K3bDevice::DEVICE_DVD_R_DL|K3bDevice::DEVICE_DVD_PLUS_R_DL)) ) {
	    emit infoMessage( i18n("The writer does not support writing Double Layer DVD."), ERROR );
	    d->running = false;
	    jobFinished(false);
	    return;
	  }
	  // FIXME: check for growisofs 5.22 (or whatever version is needed) for DVD-R DL
	  else if( k3bcore->externalBinManager()->binObject( "growisofs" ) &&
		   k3bcore->externalBinManager()->binObject( "growisofs" )->version < K3bVersion( 5, 20 ) ) {
	    emit infoMessage( i18n("Growisofs >= 5.20 is needed to write Double Layer DVD+R."), ERROR );
	    d->running = false;
	    jobFinished(false);
	    return;
	  }
	}
      }
    case K3bDevice::MEDIA_DVD_R:
    case K3bDevice::MEDIA_DVD_R_SEQ:
    case K3bDevice::MEDIA_DVD_RW:
    case K3bDevice::MEDIA_DVD_RW_SEQ:
    case K3bDevice::MEDIA_DVD_PLUS_R:

      if( dh->diskInfo().numSessions() > 1 ) {
	emit infoMessage( i18n("K3b does not support copying multi-session DVDs."), ERROR );
	d->running = false;
	jobFinished(false);
	return;
      }

      // growisofs only uses the size from the PVD for reserving
      // writable space in DAO mode
      // with version >= 5.15 growisofs supports specifying the size of the track
      if( m_writingMode != K3b::DAO || !m_onTheFly || m_onlyCreateImage ||
	  ( k3bcore->externalBinManager()->binObject( "growisofs" ) &&
	    k3bcore->externalBinManager()->binObject( "growisofs" )->version >= K3bVersion( 5, 15, -1 ) ) ) {
	d->lastSector = dh->toc().lastSector();
	break;
      }

      // fallthrough

    case K3bDevice::MEDIA_DVD_PLUS_RW:
    case K3bDevice::MEDIA_DVD_RW_OVWR:
      {
	emit infoMessage( i18n("K3b relies on the size saved in the ISO9660 header."), WARNING );
	emit infoMessage( i18n("This might result in a corrupt copy if the source was mastered with buggy software."), WARNING );

	K3bIso9660 isoF( m_readerDevice, 0 );
	if( isoF.open() ) {
	  d->lastSector = ((long long)isoF.primaryDescriptor().logicalBlockSize*isoF.primaryDescriptor().volumeSpaceSize)/2048LL - 1;
	}
	else {
	  emit infoMessage( i18n("Unable to determine the ISO9660 filesystem size."), ERROR );
	  jobFinished(false);
	  d->running = false;
	  return;
	}
      }
      break;

    case K3bDevice::MEDIA_DVD_RAM:
      emit infoMessage( i18n("K3b does not support copying DVD-RAM."), ERROR );
      jobFinished(false);
      d->running = false;
      return;

    default:
      emit infoMessage( i18n("Unable to determine DVD media type."), ERROR );
      jobFinished(false);
      d->running = false;
      return;
    }


    if( !m_onTheFly ) {
      //
      // Check the image path
      //
      TQFileInfo fi( m_imagePath );
      if( !fi.isFile() ||
	  questionYesNo( i18n("Do you want to overwrite %1?").arg(m_imagePath),
			 i18n("File Exists") ) ) {
	if( fi.isDir() )
	  m_imagePath = K3b::findTempFile( "iso", m_imagePath );
	else if( !TQFileInfo( m_imagePath.section( '/', 0, -2 ) ).isDir() ) {
	  emit infoMessage( i18n("Specified an unusable temporary path. Using default."), WARNING );
	  m_imagePath = K3b::findTempFile( "iso" );
	}
	// else the user specified a file in an existing dir

	emit infoMessage( i18n("Writing image file to %1.").arg(m_imagePath), INFO );
	emit newSubTask( i18n("Reading source medium.") );
      }

      //
      // check free temp space
      //
      KIO::filesize_t imageSpaceNeeded = (KIO::filesize_t)(d->lastSector.lba()+1)*2048;
      unsigned long avail, size;
      TQString pathToTest = m_imagePath.left( m_imagePath.findRev( '/' ) );
      if( !K3b::kbFreeOnFs( pathToTest, size, avail ) ) {
	emit infoMessage( i18n("Unable to determine free space in temporary directory '%1'.").arg(pathToTest), ERROR );
	jobFinished(false);
	d->running = false;
	return;
      }
      else {
	if( avail < imageSpaceNeeded/1024 ) {
	  emit infoMessage( i18n("Not enough space left in temporary directory."), ERROR );
	  jobFinished(false);
	  d->running = false;
	  return;
	}
      }

      d->imageFile.setName( m_imagePath );
      if( !d->imageFile.open( IO_WriteOnly ) ) {
	emit infoMessage( i18n("Unable to open '%1' for writing.").arg(m_imagePath), ERROR );
	jobFinished( false );
	d->running = false;
	return;
      }
    }

    if( K3b::isMounted( m_readerDevice ) ) {
      emit infoMessage( i18n("Unmounting source medium"), INFO );
      K3b::unmount( m_readerDevice );
    }

    if( m_onlyCreateImage || !m_onTheFly ) {
      emit newTask( i18n("Creating DVD image") );
    }
    else if( m_onTheFly && !m_onlyCreateImage ) {
      if( waitForDvd() ) {
	prepareWriter();
	if( m_simulate )
	  emit newTask( i18n("Simulating DVD copy") );
	else if( m_copies > 1 )
	  emit newTask( i18n("Writing DVD copy %1").arg(d->doneCopies+1) );
	else
	  emit newTask( i18n("Writing DVD copy") );

	emit burning(true);
	d->writerRunning = true;
	d->writerJob->start();
      }
      else {
	if( d->canceled )
	  emit canceled();
	jobFinished(false);
	d->running = false;
	return;
      }
    }

    prepareReader();
    d->readerRunning = true;
    d->dataTrackReader->start();
  }
}


void K3bDvdCopyJob::cancel()
{
  if( d->running ) {
    d->canceled = true;
    if( d->readerRunning  )
      d->dataTrackReader->cancel();
    if( d->writerRunning )
      d->writerJob->cancel();
    d->inPipe.close();
    d->outPipe.close();
    d->imageFile.close();
  }
  else {
    kdDebug() << "(K3bDvdCopyJob) not running." << endl;
  }
}


void K3bDvdCopyJob::prepareReader()
{
  if( !d->dataTrackReader ) {
    d->dataTrackReader = new K3bDataTrackReader( this );
    connect( d->dataTrackReader, TQT_SIGNAL(percent(int)), this, TQT_SLOT(slotReaderProgress(int)) );
    connect( d->dataTrackReader, TQT_SIGNAL(processedSize(int, int)), this, TQT_SLOT(slotReaderProcessedSize(int, int)) );
    connect( d->dataTrackReader, TQT_SIGNAL(finished(bool)), this, TQT_SLOT(slotReaderFinished(bool)) );
    connect( d->dataTrackReader, TQT_SIGNAL(infoMessage(const TQString&, int)), this, TQT_SIGNAL(infoMessage(const TQString&, int)) );
    connect( d->dataTrackReader, TQT_SIGNAL(newTask(const TQString&)), this, TQT_SIGNAL(newSubTask(const TQString&)) );
    connect( d->dataTrackReader, TQT_SIGNAL(debuggingOutput(const TQString&, const TQString&)),
             this, TQT_SIGNAL(debuggingOutput(const TQString&, const TQString&)) );
  }

  d->dataTrackReader->setDevice( m_readerDevice );
  d->dataTrackReader->setIgnoreErrors( m_ignoreReadErrors );
  d->dataTrackReader->setRetries( m_readRetries );
  d->dataTrackReader->setSectorRange( 0, d->lastSector );

  if( m_onTheFly && !m_onlyCreateImage )
    d->inPipe.writeToFd( d->writerJob->fd(), true );
  else
    d->inPipe.writeToIODevice( &d->imageFile );

  d->inPipe.open( true );
  d->dataTrackReader->writeToFd( d->inPipe.in() );
}


// ALWAYS CALL WAITFORDVD BEFORE PREPAREWRITER!
void K3bDvdCopyJob::prepareWriter()
{
  delete d->writerJob;

  d->writerJob = new K3bGrowisofsWriter( m_writerDevice, this );

  connect( d->writerJob, TQT_SIGNAL(infoMessage(const TQString&, int)), this, TQT_SIGNAL(infoMessage(const TQString&, int)) );
  connect( d->writerJob, TQT_SIGNAL(percent(int)), this, TQT_SLOT(slotWriterProgress(int)) );
  connect( d->writerJob, TQT_SIGNAL(processedSize(int, int)), this, TQT_SIGNAL(processedSize(int, int)) );
  connect( d->writerJob, TQT_SIGNAL(processedSubSize(int, int)), this, TQT_SIGNAL(processedSubSize(int, int)) );
  connect( d->writerJob, TQT_SIGNAL(buffer(int)), this, TQT_SIGNAL(bufferStatus(int)) );
  connect( d->writerJob, TQT_SIGNAL(deviceBuffer(int)), this, TQT_SIGNAL(deviceBuffer(int)) );
  connect( d->writerJob, TQT_SIGNAL(writeSpeed(int, int)), this, TQT_SIGNAL(writeSpeed(int, int)) );
  connect( d->writerJob, TQT_SIGNAL(finished(bool)), this, TQT_SLOT(slotWriterFinished(bool)) );
  //  connect( d->writerJob, TQT_SIGNAL(newTask(const TQString&)), this, TQT_SIGNAL(newTask(const TQString&)) );
  connect( d->writerJob, TQT_SIGNAL(newSubTask(const TQString&)), this, TQT_SIGNAL(newSubTask(const TQString&)) );
  connect( d->writerJob, TQT_SIGNAL(debuggingOutput(const TQString&, const TQString&)),
	   this, TQT_SIGNAL(debuggingOutput(const TQString&, const TQString&)) );

  // these do only make sense with DVD-R(W)
  d->writerJob->setSimulate( m_simulate );
  d->writerJob->setBurnSpeed( m_speed );
  d->writerJob->setWritingMode( d->usedWritingMode );
  d->writerJob->setCloseDvd( true );

  //
  // In case the first layer size is not known let the
  // split be determined by growisofs
  //
  if( d->sourceDiskInfo.numLayers() > 1 &&
      d->sourceDiskInfo.firstLayerSize() > 0 ) {
    d->writerJob->setLayerBreak( d->sourceDiskInfo.firstLayerSize().lba() );
  }
  else {
    // this is only used in DAO mode with growisofs >= 5.15
    d->writerJob->setTrackSize( d->lastSector.lba()+1 );
  }

  d->writerJob->setImageToWrite( TQString() ); // write to stdin
}


void K3bDvdCopyJob::slotReaderProgress( int p )
{
  if( !m_onTheFly || m_onlyCreateImage ) {
    emit subPercent( p );

    int bigParts = ( m_onlyCreateImage ? 1 : (m_simulate ? 2 : ( d->verifyData ? m_copies*2 : m_copies ) + 1 ) );
    emit percent( p/bigParts );
  }
}


void K3bDvdCopyJob::slotReaderProcessedSize( int p, int c )
{
  if( !m_onTheFly || m_onlyCreateImage )
    emit processedSubSize( p, c );

  if( m_onlyCreateImage )
    emit processedSize( p, c );
}


void K3bDvdCopyJob::slotWriterProgress( int p )
{
  int bigParts = ( m_simulate ? 1 : ( d->verifyData ? m_copies*2 : m_copies ) ) + ( m_onTheFly ? 0 : 1 );
  int doneParts = ( m_simulate ? 0 : ( d->verifyData ? d->doneCopies*2 : d->doneCopies ) ) + ( m_onTheFly ? 0 : 1 );
  emit percent( 100*doneParts/bigParts + p/bigParts );

  emit subPercent( p );
}


void K3bDvdCopyJob::slotVerificationProgress( int p )
{
  int bigParts = ( m_simulate ? 1 : ( d->verifyData ? m_copies*2 : m_copies ) ) + ( m_onTheFly ? 0 : 1 );
  int doneParts = ( m_simulate ? 0 : ( d->verifyData ? d->doneCopies*2 : d->doneCopies ) ) + ( m_onTheFly ? 0 : 1 ) + 1;
  emit percent( 100*doneParts/bigParts + p/bigParts );
}


void K3bDvdCopyJob::slotReaderFinished( bool success )
{
  d->readerRunning = false;

  d->inPipe.close();

  // close the socket
  // otherwise growisofs will never quit.
  // FIXME: is it posiible to do this in a generic manner?
  if( d->writerJob )
    d->writerJob->closeFd();

  // already finished?
  if( !d->running )
    return;

  if( d->canceled ) {
    removeImageFiles();
    emit canceled();
    jobFinished(false);
    d->running = false;
  }

  if( success ) {
    emit infoMessage( i18n("Successfully read source DVD."), SUCCESS );
    if( m_onlyCreateImage ) {
      jobFinished(true);
      d->running = false;
    }
    else {
      if( m_writerDevice == m_readerDevice ) {
	// eject the media (we do this blocking to know if it worked
	// because if it did not it might happen that k3b overwrites a CD-RW
	// source)
	if( !m_readerDevice->eject() ) {
	  blockingInformation( i18n("K3b was unable to eject the source disk. Please do so manually.") );
	}
      }

      if( !m_onTheFly ) {
	if( waitForDvd() ) {
	  prepareWriter();
	  if( m_copies > 1 )
	    emit newTask( i18n("Writing DVD copy %1").arg(d->doneCopies+1) );
	  else
	    emit newTask( i18n("Writing DVD copy") );

	  emit burning(true);

	  d->writerRunning = true;
	  d->writerJob->start();
	  d->outPipe.writeToFd( d->writerJob->fd(), true );
	  d->outPipe.open( true );
	}
	else {
	  if( m_removeImageFiles )
	    removeImageFiles();
	  if( d->canceled )
	    emit canceled();
	  jobFinished(false);
	  d->running = false;
	}
      }
    }
  }
  else {
    removeImageFiles();
    jobFinished(false);
    d->running = false;
  }
}


void K3bDvdCopyJob::slotWriterFinished( bool success )
{
  d->writerRunning = false;

  d->outPipe.close();

  // already finished?
  if( !d->running )
    return;

  if( d->canceled ) {
    if( m_removeImageFiles )
      removeImageFiles();
    emit canceled();
    jobFinished(false);
    d->running = false;
  }

  if( success ) {
    emit infoMessage( i18n("Successfully written DVD copy %1.").arg(d->doneCopies+1), INFO );

    if( d->verifyData && !m_simulate ) {
      if( !d->verificationJob ) {
	d->verificationJob = new K3bVerificationJob( this, this );
	connect( d->verificationJob, TQT_SIGNAL(infoMessage(const TQString&, int)),
		 this, TQT_SIGNAL(infoMessage(const TQString&, int)) );
	connect( d->verificationJob, TQT_SIGNAL(newTask(const TQString&)),
		 this, TQT_SIGNAL(newSubTask(const TQString&)) );
	connect( d->verificationJob, TQT_SIGNAL(percent(int)),
		 this, TQT_SLOT(slotVerificationProgress(int)) );
	connect( d->verificationJob, TQT_SIGNAL(percent(int)),
		 this, TQT_SIGNAL(subPercent(int)) );
	connect( d->verificationJob, TQT_SIGNAL(finished(bool)),
		 this, TQT_SLOT(slotVerificationFinished(bool)) );
	connect( d->verificationJob, TQT_SIGNAL(debuggingOutput(const TQString&, const TQString&)),
		 this, TQT_SIGNAL(debuggingOutput(const TQString&, const TQString&)) );

      }
      d->verificationJob->setDevice( m_writerDevice );
      d->verificationJob->addTrack( 1, d->inPipe.checksum(), d->lastSector+1 );

      if( m_copies > 1 )
	emit newTask( i18n("Verifying DVD copy %1").arg(d->doneCopies+1) );
      else
	emit newTask( i18n("Verifying DVD copy") );

      emit burning( false );

      d->verificationJob->start();
    }

    else if( ++d->doneCopies < m_copies ) {

        if ( !m_writerDevice->eject() ) {
            blockingInformation( i18n("K3b was unable to eject the written disk. Please do so manually.") );
        }

      if( waitForDvd() ) {
	prepareWriter();
	emit newTask( i18n("Writing DVD copy %1").arg(d->doneCopies+1) );

	emit burning(true);

	d->writerRunning = true;
	d->writerJob->start();
      }
      else {
	if( d->canceled )
	  emit canceled();
	jobFinished(false);
	d->running = false;
	return;
      }

      if( m_onTheFly ) {
	prepareReader();
	d->readerRunning = true;
	d->dataTrackReader->start();
      }
      else {
	d->outPipe.writeToFd( d->writerJob->fd(), true );
	d->outPipe.open( true );
      }
    }
    else {
      if( m_removeImageFiles )
	removeImageFiles();
      d->running = false;
      jobFinished(true);
    }
  }
  else {
    if( m_removeImageFiles )
      removeImageFiles();
    d->running = false;
    jobFinished(false);
  }
}


void K3bDvdCopyJob::slotVerificationFinished( bool success )
{
  // we simply ignore the results from the verification, the verification
  // job already emits a message
  if( ++d->doneCopies < m_copies ) {

    if( waitForDvd() ) {
      prepareWriter();
      emit newTask( i18n("Writing DVD copy %1").arg(d->doneCopies+1) );

      emit burning(true);

      d->writerRunning = true;
      d->writerJob->start();
    }
    else {
      if( d->canceled )
	emit canceled();
      jobFinished(false);
      d->running = false;
      return;
    }

    if( m_onTheFly ) {
      prepareReader();
      d->readerRunning = true;
      d->dataTrackReader->start();
    }
    else {
      d->outPipe.writeToFd( d->writerJob->fd(), true );
      d->outPipe.open( true );
    }
  }
  else {
    if( m_removeImageFiles )
      removeImageFiles();
    d->running = false;
    jobFinished( success );
  }
}


// this is basically the same code as in K3bDvdJob... :(
// perhaps this should be moved to some K3bGrowisofsHandler which also parses the growisofs output?
bool K3bDvdCopyJob::waitForDvd()
{
  int mt = 0;
  if( m_writingMode == K3b::WRITING_MODE_RES_OVWR ) // we treat DVD+R(W) as restricted overwrite media
    mt = K3bDevice::MEDIA_DVD_RW_OVWR|K3bDevice::MEDIA_DVD_PLUS_RW|K3bDevice::MEDIA_DVD_PLUS_R;
  else
    mt = K3bDevice::MEDIA_WRITABLE_DVD_SL;

  //
  // in case the source is a double layer DVD we made sure above that the writer
  // is capable of writing DVD+R-DL or DVD-R DL and here we wait for a DL DVD
  //
  if( d->sourceDiskInfo.numLayers() > 1 &&
      d->sourceDiskInfo.size().mode1Bytes() > 4700372992LL ) {
    mt = K3bDevice::MEDIA_WRITABLE_DVD_DL;
  }

  int m = waitForMedia( m_writerDevice, K3bDevice::STATE_EMPTY, mt );

  if( m < 0 ) {
    cancel();
    return false;
  }

  if( m == 0 ) {
    emit infoMessage( i18n("Forced by user. Growisofs will be called without further tests."), INFO );
  }

  else {
    // -------------------------------
    // DVD Plus
    // -------------------------------
    if( m & K3bDevice::MEDIA_DVD_PLUS_ALL ) {

      d->usedWritingMode = K3b::WRITING_MODE_RES_OVWR;

      if( m_simulate ) {
	if( !questionYesNo( i18n("K3b does not support simulation with DVD+R(W) media. "
				 "Do you really want to continue? The media will actually be "
				 "written to."),
			    i18n("No Simulation with DVD+R(W)") ) ) {
	  cancel();
	  return false;
	}

//	m_simulate = false;
	emit newTask( i18n("Writing DVD copy") );
      }

      if( m_writingMode != K3b::WRITING_MODE_AUTO && m_writingMode != K3b::WRITING_MODE_RES_OVWR )
	emit infoMessage( i18n("Writing mode ignored when writing DVD+R(W) media."), INFO );

      if( m & K3bDevice::MEDIA_DVD_PLUS_RW )
	emit infoMessage( i18n("Writing DVD+RW."), INFO );
      else if( m & K3bDevice::MEDIA_DVD_PLUS_R_DL )
	emit infoMessage( i18n("Writing Double Layer DVD+R."), INFO );
      else
	emit infoMessage( i18n("Writing DVD+R."), INFO );
    }

    // -------------------------------
    // DVD Minus
    // -------------------------------
    else {
      if( m_simulate && !m_writerDevice->dvdMinusTestwrite() ) {
	if( !questionYesNo( i18n("Your writer (%1 %2) does not support simulation with DVD-R(W) media. "
				 "Do you really want to continue? The media will be written "
				 "for real.")
			   .arg(m_writerDevice->vendor())
			   .arg(m_writerDevice->description()),
			   i18n("No Simulation with DVD-R(W)") ) ) {
	  cancel();
	  return false;
	}

//	m_simulate = false;
      }

      //
      // We do not default to DAO in onthefly mode since otherwise growisofs would
      // use the size from the PVD to reserve space on the DVD and that can be bad
      // if this size is wrong
      // With growisofs 5.15 we have the option to specify the size of the image to be written in DAO mode.
      //
//       bool sizeWithDao = ( k3bcore->externalBinManager()->binObject( "growisofs" ) &&
// 			   k3bcore->externalBinManager()->binObject( "growisofs" )->version >= K3bVersion( 5, 15, -1 ) );


      // TODO: check for feature 0x21

      if( m & K3bDevice::MEDIA_DVD_RW_OVWR ) {
	emit infoMessage( i18n("Writing DVD-RW in restricted overwrite mode."), INFO );
	d->usedWritingMode = K3b::WRITING_MODE_RES_OVWR;
      }
      else if( m & (K3bDevice::MEDIA_DVD_RW_SEQ|
		    K3bDevice::MEDIA_DVD_RW) ) {
	if( m_writingMode == K3b::DAO ) {
// 	    ( m_writingMode ==  K3b::WRITING_MODE_AUTO &&
// 	      ( sizeWithDao || !m_onTheFly ) ) ) {
	  emit infoMessage( i18n("Writing DVD-RW in DAO mode."), INFO );
	  d->usedWritingMode = K3b::DAO;
	}
	else {
	  emit infoMessage( i18n("Writing DVD-RW in incremental mode."), INFO );
	  d->usedWritingMode = K3b::WRITING_MODE_INCR_SEQ;
	}
      }
      else {

	// FIXME: DVD-R DL jump and stuff

	if( m_writingMode == K3b::WRITING_MODE_RES_OVWR )
	  emit infoMessage( i18n("Restricted Overwrite is not possible with DVD-R media."), INFO );

	if( m_writingMode == K3b::DAO ) {
// 	    ( m_writingMode ==  K3b::WRITING_MODE_AUTO &&
// 	      ( sizeWithDao || !m_onTheFly ) ) ) {
	  emit infoMessage( i18n("Writing %1 in DAO mode.").arg( K3bDevice::mediaTypeString(m, true) ), INFO );
	  d->usedWritingMode = K3b::DAO;
	}
	else {
	  emit infoMessage( i18n("Writing %1 in incremental mode.").arg( K3bDevice::mediaTypeString(m, true) ), INFO );
	  d->usedWritingMode = K3b::WRITING_MODE_INCR_SEQ;
	}
      }
    }
  }

  return true;
}



void K3bDvdCopyJob::removeImageFiles()
{
  if( TQFile::exists( m_imagePath ) ) {
    d->imageFile.remove();
    emit infoMessage( i18n("Removed image file %1").arg(m_imagePath), K3bJob::SUCCESS );
  }
}


TQString K3bDvdCopyJob::jobDescription() const
{
  if( m_onlyCreateImage ) {
    return i18n("Creating DVD Image");
  }
  else {
    if( m_onTheFly )
      return i18n("Copying DVD On-The-Fly");
    else
      return i18n("Copying DVD");
  }
}


TQString K3bDvdCopyJob::jobDetails() const
{
  return i18n("Creating 1 copy",
	      "Creating %n copies",
	      (m_simulate||m_onlyCreateImage) ? 1 : m_copies );
}


void K3bDvdCopyJob::setVerifyData( bool b )
{
  d->verifyData = b;
}

#include "k3bdvdcopyjob.moc"