/*
	This file is part of cpp-ethereum.

	cpp-ethereum 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 3 of the License, or
	(at your option) any later version.

	cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
/** @file FixedHash.cpp
 * @author Gav Wood <i@gavwood.com>
 * @date 2014
 */

#include "FixedHash.h"
#include <ctime>
#include <boost/algorithm/string.hpp>

using namespace std;
using namespace dev;

boost::random_device dev::s_fixedHashEngine;

h128 dev::fromUUID(std::string const& _uuid)
{
	try
	{
		return h128(boost::replace_all_copy(_uuid, "-", ""));
	}
	catch (...)
	{
		return h128();
	}
}

std::string dev::toUUID(h128 const& _uuid)
{
	std::string ret = toHex(_uuid.ref());
	for (unsigned i: {20, 16, 12, 8})
		ret.insert(ret.begin() + i, '-');
	return ret;
}