// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#ifndef __LOGCHNGE_H__

#define __LOGCHNGE_H__

#include <logwrap.h>

// Classes referenced

class TLogConfig;

class CLogServRecentList;

class CLogServRecentListManager;

class MLogServDatabaseTransactionInterface;

class CLogDuplicate;

class CLogFilter;

class RLogEventDbTable;

/**

This class provides functions for updating properties of particular event.

The database record holding the event data will be updated.

@see MLogServDatabaseTransactionInterface

@see CLogServRecentList

@see CLogDuplicate

@see CLogEvent

@internalComponent

*/

class CLogChangeEvent : public CLogActive

	{

public:

	static CLogChangeEvent* NewL(MLogServDatabaseTransactionInterface& aDatabase, TInt aPriority);

	~CLogChangeEvent();

	//

public:

	void StartL(const CLogEvent& aEvent, 

	            const CLogServRecentList* aRecentList, 

	            TRequestStatus& aStatus, 

	            const RMessage2& aMessage);

	//

private:

	CLogChangeEvent(MLogServDatabaseTransactionInterface& aDatabase, TInt aPriority);

	void ConstructL();

	//

	void DoRunL();

	void DoComplete(TInt& aStatus);

	void ResetDuplicatesL();

	void UpdateDuplicateEventsL();

	void DoChangeEventL();

	void DoChangeL(RLogEventDbTable& aTbl, TLogStringId aDirectionId, TLogStringId aStatusId);

	//

	enum TLogChangeState

		{

		ELogNone = 0,

		ELogChangeEvent,

		ELogPurgeRecent

		};

	//

private:

	MLogServDatabaseTransactionInterface& iDatabase;

	CLogEvent* iEvent;

	TLogChangeState iState;

	const CLogServRecentList* iRecentList;

	TInt iOldRecentList;

	//

	CLogDuplicate* iDuplicate;

	CLogFilter* iDuplicateFilter;

	//

	const RMessage2* iMessage;

	};

//**********************************

// CLogChangeConfig

//**********************************

class CLogChangeConfig : public CLogActive

/**

@internalComponent

*/

	{

public:

	static CLogChangeConfig* NewL(MLogServDatabaseTransactionInterface& aDatabase, const CLogServRecentListManager& aRecentSetup, TInt aPriority);

	~CLogChangeConfig();

	//

public:

	void StartL(const TLogConfig& aConfig, TRequestStatus& aStatus);

	//

private:

	CLogChangeConfig(MLogServDatabaseTransactionInterface& aDatabase, const CLogServRecentListManager& aRecentSetup, TInt aPriority);

	//

	void DoRunL();

	void DoComplete(TInt& aStatus);

	//

	enum TLogChangeState

		{

		ELogNone,

		ELogChange,

		ELogPurgeRecent

		};

	//

private:

	MLogServDatabaseTransactionInterface& iDatabase;

	const TLogConfig* iConfig;

	const CLogServRecentListManager& iRecentSetup;

	TLogChangeState iState;

	TInt iRecent;

	};

#endif