/*
	grive: an GPL program to sync a local directory with Google Drive
	Copyright (C) 2012  Wan Wai Ho

	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 version 2
	of the License.

	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.
*/

#pragma once

#include "util/Exception.hh"

#include <string>
#include <memory>

#include <boost/filesystem.hpp>

namespace gr {

class File ;

namespace crypt {

class MD5
{
public :
	typedef boost::error_info<struct GCryptErr,	std::string>	GCryptErr_ ;
	typedef boost::error_info<struct GCryptApi,	std::string>	GCryptApi_ ;

public :
	MD5() ;
	~MD5() ;

	static std::string Get( File& file ) ;
	static std::string Get( const boost::filesystem::path& file ) ;
	
	void Write( const void *data, std::size_t size ) ;
	std::string Get() const ;

private :
	struct Impl ;
	std::auto_ptr<Impl>	m_impl ;
} ;

} } // end of namespace gr
