/*
 * Copyright (c) 2007 Henrique Pinto <henrique.pinto@kdemail.net>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ( INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "archivebase.h"
#include "queries.h"

#include <kdebug.h>
#include <ThreadWeaver/Job>
#include <ThreadWeaver/Weaver>

#include <QFile>
#include <QDir>
#include <QList>
#include <QStringList>
#include <QDateTime>
#include <QEventLoop>

namespace Kerfuffle
{
	ArchiveBase::ArchiveBase( ReadOnlyArchiveInterface *archive )
		: QObject(), Archive(), m_iface( archive ),
		m_hasBeenListed(false),
		m_isSingleFolderArchive(false)
	{
		Q_ASSERT( archive );
		archive->setParent( this );
		//setReadOnly( archive->isReadOnly() );
	}

	ArchiveBase::~ArchiveBase()
	{
		delete m_iface;
		m_iface = 0;
	}

	bool ArchiveBase::isReadOnly()
	{
		return m_iface->isReadOnly();
	}

	KJob* ArchiveBase::open()
	{
		return 0;
	}

	KJob* ArchiveBase::create()
	{
		return 0;
	}

	ListJob* ArchiveBase::list()
	{
		ListJob *job = new ListJob( m_iface, this );

		//if this job has not been listed before, we grab the opportunity to
		//collect some information about the archive
		if (!m_hasBeenListed) {
			connect(job, SIGNAL(result(KJob*)),
					this, SLOT(onListFinished(KJob*)));
		}
		return job;
	}

	DeleteJob* ArchiveBase::deleteFiles( const QList<QVariant> & files )
	{
		if ( m_iface->isReadOnly() )
		{
			return 0;
		}
		DeleteJob *newJob = new DeleteJob( files, static_cast<ReadWriteArchiveInterface*>( m_iface ), this );

		return newJob;
	}

	AddJob* ArchiveBase::addFiles( const QStringList & files, const CompressionOptions& options)
	{
		Q_ASSERT( !m_iface->isReadOnly() );
		AddJob *newJob = new AddJob(files, options, static_cast<ReadWriteArchiveInterface*>( m_iface ), this );
		connect(newJob, SIGNAL(result(KJob*)),
				this, SLOT(onAddFinished(KJob*)));
		return newJob;
	}

	ExtractJob* ArchiveBase::copyFiles( const QList<QVariant> & files, const QString & destinationDir, ExtractionOptions options )
	{
		ExtractionOptions newOptions = options;
		if (isPasswordProtected())
			newOptions["PasswordProtectedHint"] = true;

		ExtractJob *newJob = new ExtractJob( files, destinationDir, newOptions, m_iface, this );
		return newJob;
	}

	QString ArchiveBase::fileName()
	{
		return m_iface->filename();
	}

	void ArchiveBase::onAddFinished(KJob* job)
	{
		//if the archive was previously a single folder archive and an add job
		//has successfully finished, then it is no longer a single folder
		//archive (for the current implementation, which does not allow adding
		//folders/files other places than the root.
		//TODO: handle the case of creating a new file and singlefolderarchive
		//then.
		if (m_isSingleFolderArchive && !job->error()) {
			m_isSingleFolderArchive = false;
		}
	}

	void ArchiveBase::onListFinished(KJob* job)
	{
		ListJob *ljob = qobject_cast<ListJob*>(job);
		m_extractedFilesSize = ljob->extractedFilesSize();
		m_isSingleFolderArchive = ljob->isSingleFolderArchive();
		m_isPasswordProtected = ljob->isPasswordProtected();
		m_subfolderName = ljob->subfolderName();
		if (m_subfolderName.isEmpty()) {
			QFileInfo fi(fileName());
			QString base = fi.completeBaseName();

			//special case for tar.gz/bzip2 files
			if (base.right(4).toUpper() == ".TAR")
				base.chop(4);

			m_subfolderName = base;
		}

		m_hasBeenListed = true;
	}

	void ArchiveBase::listIfNotListed()
	{
		if (!m_hasBeenListed) {
			KJob *job = list();

			QEventLoop loop( this );

			connect( job, SIGNAL( result( KJob* ) ),
					&loop, SLOT( quit() ) );
			job->start();
			loop.exec();
		}
	}

	bool ArchiveBase::isSingleFolderArchive()
	{
		listIfNotListed();
		return m_isSingleFolderArchive;
	}

	bool ArchiveBase::isPasswordProtected()
	{
		listIfNotListed();
		return m_isPasswordProtected;
	}

	QString ArchiveBase::subfolderName()
	{
		listIfNotListed();
		return m_subfolderName;
	}

	void ArchiveBase::setPassword(QString password)
	{
		m_iface->setPassword(password);
	}


} // namespace Kerfuffle

#include "archivebase.moc"
