/*
 * (c) Copyright Ascensio System SIA 2010-2023
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation. In accordance with
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
 * street, Riga, Latvia, EU, LV-1050.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */

#include "CFStreamCacheWriter.h"
#include "CFRecord.h"
#include "CFStream.h"
#include "../Logic/Biff_records/BOF.h"


namespace XLS
{

StreamCacheWriter::StreamCacheWriter(const GlobalWorkbookInfoPtr global_info)
	: global_info_(global_info)
{
}

StreamCacheWriter::~StreamCacheWriter()
{
}

// Reads the next CFRecord from the CFStream and if its type is not the desired one, caches it for the next call
CFRecordPtr StreamCacheWriter::getNextRecord(const CFRecordType::TypeId desirable_type)
{	
	return CFRecordPtr(new CFRecord(desirable_type, global_info_));
}

// Saves the next CFRecord to the stream or caches for later saving.
// Returns whether the record was saved to file or stored for later saving
bool StreamCacheWriter::storeNextRecord(CFRecordPtr record)
{
	records_cache.push_back(record);
	writeToStream(1);
	return true;
}

//---------------------------------------------------------------------------------------------------------
CFStreamCacheWriter::CFStreamCacheWriter(CFStreamPtr stream, GlobalWorkbookInfoPtr global_info)
	: StreamCacheWriter(global_info),	stream_(stream)	
{
}

CFStreamCacheWriter::~CFStreamCacheWriter()
{
}

// Saves the next CFRecord to the CFStream or caches for later saving.
// Returns whether the record was saved to file or stored for later saving
bool CFStreamCacheWriter::storeNextRecord(CFRecordPtr record)
{
	record->save(stream_);
	return true;
}

const size_t CFStreamCacheWriter::GetRecordPosition()
{
	return stream_->getStreamPointer();
}

// Actual transporting record to the CFStream and then to IStream
const size_t CFStreamCacheWriter::writeToStream(const size_t num_of_records_min_necessary)
{
	return 0;
}

//---------------------------------------------------------------------------------------------------------
BinaryStreamCacheWriter::BinaryStreamCacheWriter(boost::shared_ptr<NSBinPptxRW::CXlsbBinaryWriter> binaryStream, GlobalWorkbookInfoPtr global_info)
	: StreamCacheWriter(global_info), binaryStream_(binaryStream)
{

}

BinaryStreamCacheWriter::~BinaryStreamCacheWriter()
{

}

const size_t BinaryStreamCacheWriter::writeToStream(const size_t num_of_records_min_necessary)
{
	if(records_cache.size() >= num_of_records_min_necessary)
	{
		for (int i = 0; i < num_of_records_min_necessary; ++i)
		{
			records_cache.front()->save(*binaryStream_);
			records_cache.pop_front();
		}
	}

	return records_cache.size();
}


} // namespace XLS