// ============================================================================
//  Copyright (C) 2001-2015 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 __TFEEDBACKHANDLERBASE_H__
#define __TFEEDBACKHANDLERBASE_H__

#include "libchcore.h"
#include "IFeedbackHandler.h"
#include "ISerializerRowData.h"
#include "IColumnsDefinition.h"
#include "ISerializerRowReader.h"
#include <bitset>
#include "TSharedModificationTracker.h"

namespace chcore
{
	class LIBCHCORE_API TFeedbackHandlerBase : public IFeedbackHandler
	{
	public:
		TFeedbackHandlerBase();
		virtual ~TFeedbackHandlerBase();

		virtual EFeedbackResult FileError(const TString& strSrcPath, const TString& strDstPath, EFileError eFileError, unsigned long ulError) override;
		virtual EFeedbackResult FileAlreadyExists(const TFileInfoPtr& spSrcFileInfo, const TFileInfoPtr& spDstFileInfo) override;
		virtual EFeedbackResult NotEnoughSpace(const TString& strSrcPath, const TString& strDstPath, unsigned long long ullRequiredSize) override;

		virtual EFeedbackResult OperationFinished() override;
		virtual EFeedbackResult OperationError() override;

		// marking responses as permanent
		void SetFileErrorPermanentResponse(EFeedbackResult ePermanentResult) { m_eFileError = ePermanentResult; }
		EFeedbackResult GetFileErrorPermanentResponse() const { return m_eFileError; }

		void SetFileAlreadyExistsPermanentResponse(EFeedbackResult ePermanentResult) { m_eFileAlreadyExists = ePermanentResult; }
		EFeedbackResult GetFileAlreadyExistsPermanentResponse() const { return m_eFileAlreadyExists; }

		void SetNotEnoughSpacePermanentResponse(EFeedbackResult ePermanentResult) { m_eNotEnoughSpace = ePermanentResult; }
		EFeedbackResult GetNotEnoughSpacePermanentResponse() const { return m_eNotEnoughSpace; }

		// resets the permanent status from all responses
		virtual void RestoreDefaults() override;

		// serialization
		void Store(const ISerializerContainerPtr& spContainer) const;
		static void InitColumns(const ISerializerContainerPtr& spContainer);
		void Load(const ISerializerContainerPtr& spContainer);

	private:
		enum EModifications
		{
			eMod_Added = 0,
			eMod_FileError,
			eMod_FileAlreadyExists,
			eMod_NotEnoughSpace,
			eMod_OperationFinished,
			eMod_OperationError,

			// last item
			eMod_Last
		};

#pragma warning(push)
#pragma warning(disable: 4251)
		mutable boost::shared_mutex m_lock;

		using Bitset = std::bitset<eMod_Last>;
		mutable Bitset m_setModifications;

		TSharedModificationTracker<EFeedbackResult, Bitset, eMod_FileError> m_eFileError;
		TSharedModificationTracker<EFeedbackResult, Bitset, eMod_FileAlreadyExists> m_eFileAlreadyExists;
		TSharedModificationTracker<EFeedbackResult, Bitset, eMod_NotEnoughSpace> m_eNotEnoughSpace;
		TSharedModificationTracker<EFeedbackResult, Bitset, eMod_OperationFinished> m_eOperationFinished;
		TSharedModificationTracker<EFeedbackResult, Bitset, eMod_OperationError> m_eOperationError;
#pragma warning(pop)
	};

	typedef boost::shared_ptr<TFeedbackHandlerBase> TFeedbackHandlerBasePtr;
}

#endif