/***************************************************************************
 *   Copyright (C) 2008 by Volker Lanz <vl@fidra.de>                       *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
 ***************************************************************************/

#include "fs/linuxswap.h"

#include "util/externalcommand.h"

#include <klocale.h>

namespace FS
{
	FileSystem::SupportType linuxswap::m_Create = FileSystem::SupportNone;
	FileSystem::SupportType linuxswap::m_Grow = FileSystem::SupportNone;
	FileSystem::SupportType linuxswap::m_Shrink = FileSystem::SupportNone;
	FileSystem::SupportType linuxswap::m_Move = FileSystem::SupportNone;
	FileSystem::SupportType linuxswap::m_Copy = FileSystem::SupportNone;
	FileSystem::SupportType linuxswap::m_GetLabel = FileSystem::SupportNone;
	FileSystem::SupportType linuxswap::m_SetLabel = FileSystem::SupportNone;
	
	linuxswap::linuxswap(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
		FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::LinuxSwap)
	{
	}

	void linuxswap::init()
	{
		m_SetLabel = m_Shrink = m_Grow = m_Create = (findExternal("mkswap")) ? SupportExternal : SupportNone;
		m_GetLabel = findExternal("vol_id") ? SupportExternal : SupportNone;
		m_Copy = SupportInternal;
		m_Move = SupportInternal;
	}

	bool linuxswap::create(Report& report, const QString& deviceNode) const
	{
		return ExternalCommand(report, "mkswap", QStringList() << deviceNode).run(-1);
	}

	bool linuxswap::resize(Report& report, const QString& deviceNode, qint64) const
	{
		return create(report, deviceNode);
	}
	
	QString linuxswap::readLabel(const QString& deviceNode) const
	{
		ExternalCommand cmd("vol_id", QStringList() << deviceNode);

		if (cmd.run())
		{
			QRegExp rxLabel("ID_FS_LABEL=(\\w+)");

			if (rxLabel.indexIn(cmd.output()) != -1)
				return rxLabel.cap(1).simplified();
		}
		
		return QString();
	}
	
	bool linuxswap::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
	{
		return ExternalCommand(report, "mkswap", QStringList() << "-L" << newLabel << deviceNode).run(-1);
	}

	QString linuxswap::mountTitle() const
	{
		return i18nc("@title:menu", "Activate swap");
	}

	QString linuxswap::unmountTitle() const
	{
		return i18nc("@title:menu", "Deactivate swap");
	}

	bool linuxswap::mount(const QString& deviceNode)
	{
		return ExternalCommand("swapon", QStringList() << deviceNode).run(-1);
	}

	bool linuxswap::unmount(const QString& deviceNode)
	{
		return ExternalCommand("swapoff", QStringList() << deviceNode).run(-1);
	}
}