/////////////////////////////////////////////////////////////////////////////
///    CLASS PodcastFetcher
///    @note Allows us to download podcasts from any enclosure, even the weird ones.
////////////////////////////////////////////////////////////////////////////

PodcastFetcher::PodcastFetcher( QString url, const KURL &directory ):
        m_directory ( directory )
{
    m_url = QUrl( url );
    setHost( m_url.host() );
    redirected = false;
    QObject::connect( this, SIGNAL( responseHeaderReceived ( const QHttpResponseHeader & ) ), this,
                      SLOT( responseReceived( const QHttpResponseHeader & ) ) );
    QObject::connect(this, SIGNAL(done(bool)), this, SLOT(done(bool)));

    fetch( );
}

void PodcastFetcher::fetch()
{
    DEBUG_BLOCK
    KURL filepath = m_directory;
    debug() << "filename = " << m_url.fileName() << endl;
    filepath.addPath( m_url.fileName() );
    m_file = new QFile( filepath.path() );
    if( m_file != 0 )
        debug() << "QFile = " << m_file->name() << endl;
    else
        debug() << "BUG: m_file == NULL" << endl;
    if ( m_file->exists() )
    {
        emit result( 0 );
        debug() << m_file->name() << " exists, aborting download" << endl;
        return;
    }

    debug() << " host = " << m_url.host() << endl;
    setHost( m_url.host() );
    debug() << "get( " << m_url.encodedPathAndQuery() << " )" << endl;
    get( m_url.encodedPathAndQuery(), m_file );
    if (error() )
        debug() <<  errorString() << endl;
}

void PodcastFetcher::kill()
{
    abort();
    clearPendingRequests();
    closeConnection();
    if( m_file && m_file->exists() )
        m_file->remove();
}

void PodcastFetcher::responseReceived( const QHttpResponseHeader & resp )
{
    DEBUG_BLOCK
    debug() << "RESPONCE, statuscode = " << resp.statusCode() << endl;
    if( resp.statusCode() == 302 )
    {
        if (resp.hasKey( "location" ) )
        {
            m_url = QUrl( resp.value( "location" ) );
            debug() << "redirected to " << m_url.toString( ) <<endl;
            if ( m_file )
            {
                if ( m_file->remove() ) delete m_file;
                else debug() << "BUG in PodcastFetcher::responceReceived(): could not remove m_file " << m_file->name() << endl;
            }
            redirected = true;
        }
    } else if (resp.statusCode() == 200 )
    {
        debug() << "filename = " << m_url.fileName() << endl;
    }
}

void PodcastFetcher::done( bool done )
{
    DEBUG_BLOCK
    if (redirected)
    {
        redirected = false;
        fetch();
    }
    else
    {
        debug() << "downloaded to " << m_file->name() << endl;
        emit result( error() );
    }
}