/*-----------------------------------------------------------------------------
 * bytestream.cpp
 * Copyright (C) 2004, 2005  Akito Nozaki
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Original code came from cutestuff bytestream.h and cpp by Justin K.
 * Converted to use Tanoshi library stuff.
 * 
 */

#include <tanoshi/common_def.h>
#include <tanoshi/bytestream.h>
#include <tanoshi/bytestream_p.h>
#include <tanoshi/object.h>

#include <string>

NAMESPACE_TANOSHI
{

	ByteStream::ByteStream(Object * parent)
		: Object(parent), d(new ByteStreamPrivate)
	{
	}

	ByteStream::~ByteStream()
	{
		delete d;
	}

	bool ByteStream::isOpen() const
	{
		return false;
	}

	void ByteStream::close()
	{
	}

	void ByteStream::write(const ByteArray &a)
	{
		if(isOpen())
			return;

		bool doWrite = bytesToWrite() == 0 ? true: false;
		appendWrite(a);
		if(doWrite)
			tryWrite();
	}

	ByteArray ByteStream::read(int bytes)
	{
		return takeRead(bytes);
	}

	int ByteStream::bytesAvailable() const
	{
		return d->readBuf.size();
	}

	int ByteStream::bytesToWrite() const
	{
		return d->writeBuf.size();
	}

	void ByteStream::write(const std::string &str)
	{
		write(ByteArray(str.c_str(), str.length()));
	}

	void ByteStream::clearReadBuffer()
	{
		d->readBuf.resize(0);
	}

	void ByteStream::clearWriteBuffer()
	{
		d->writeBuf.resize(0);
	}

	void ByteStream::appendRead(const ByteArray &block)
	{
		d->readBuf.append(block);
	}

	void ByteStream::appendWrite(const ByteArray &block)
	{
		d->writeBuf.append(block);
	}

	ByteArray ByteStream::takeRead(int size, bool del)
	{
		return d->readBuf.take(size, del);
	}

	ByteArray ByteStream::takeWrite(int size, bool del)
	{
		return d->writeBuf.take(size, del);
	}
	ByteArray &ByteStream::readBuf()
	{
		return d->writeBuf;
	}

	ByteArray &ByteStream::writeBuf()
	{
		return d->writeBuf;
	}

	int ByteStream::tryWrite()
	{
		return -1;
	}
}