// ============================================================================
//  Copyright (C) 2001-2016 by Jozef Starosczyk
//  ixen@copyhandler.com
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Library General Public License
//  (version 2) as published by the Free Software Foundation;
//
//  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 Library General Public
//  License along with this program; if not, write to the
//  Free Software Foundation, Inc.,
//  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// ============================================================================
#ifndef __TLOGFILE_H__
#define __TLOGFILE_H__

#include <set>
#include "TLoggerRotationInfo.h"
#include <vector>
#include <list>

namespace logger
{
	// not exportable
	class TLogFile
	{
	public:
		static const time_t MaxHandleCacheTime = 60;

	public:
		TLogFile(PCTSTR pszPath, const TLoggerRotationInfoPtr& spRotationInfo);

		void Write(std::list<std::wstring>& pszData);
		void CloseIfUnused();
		void CloseLogFile();

	private:
		HANDLE GetFileHandle();
		unsigned long long GetCurrentLogSize();
		void RotateFile();
		void RemoveObsoleteRotatedLogs();
		void ScanForRotatedLogs();
		bool NeedRotation(size_t stDataSize);

	private:
		std::wstring m_strLogPath;

		time_t m_timeLastWriteTime = 0;
		std::shared_ptr<void> m_spFileHandle;

		// rotation
		TLoggerRotationInfoPtr m_spRotationInfo;
		std::vector<std::wstring> m_vRotatedFiles;
	};
}

#endif