/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

/**

 @file 

 @internalComponent 

*/

#ifndef	__OSINTERFACE_H__

#define	__OSINTERFACE_H__

#pragma warning(disable: 4786)

#include "symbiantypes.h"

#include <string>

#include <vector>

#include <tchar.h>

using namespace std;

#ifndef UNICODE

#undef _T

#undef _TCHAR

#define _T(S) S

#define _TCHAR char

#endif // UNICODE

/**

  * This class acts as an interface for different OS platform.This is used in order to support

  * portability between linux and windows platform.The current implementation supports windows 

  * platform.

  */

class OSInterface

{

public:

	/**

	  This method extracts all the files present within a specified directory.

	  @param	aRootDir	Reference of the directory from which the files are to be extracted.

	  @param	aExtension	Extension of the file to be extracted.

	  @return	string vector containing the files in the root directory (aRootDir) specified.

	 */

	static const std::vector<STRING> ExtractFilesFromDirectory(const STRING& aRootDir , const STRING& aExtension = _T("")) ;

	/**

	  This method which deletes the files of a particular extension present within a specified directory,

	  @param	aRootDir	Reference of the directory from which the files are to be deleted.

	  @param	aExtension	Extension of the file to be deleted.	

	 */

	static void DeleteFilesFromDirectory(const STRING& aRootDir , const STRING& aExtension);	

	/**

	  Checks whether the directory passed is  C: Based or not. Since the files within the C: based 

	  are numbered,check is made to see that the the string passed can be converted into integer .

	  @param	aFileName	Reference of the filename within the specified writable certstore to be verified.	

	  */

	static bool IsInteger(const STRING& aFileName) ;

	/**

	  Checks whether it is a valid directory .	

	  */

	static int CheckIfDirectory(const STRING& aName)  ;

	static int DeleteDirectory(STRING& aDirectory) ;

	/**

	  Reads the value from the key value pair specified in the section from an file.

	  @param	aSectionLabel	section name in the file whose key value pair is to be read.

	  @param	aRootLabel		The key whose value is to be read.

	  @param	aCertstoreFile	The file containing the section and key value pair.

	  @param	aBuf			To be populated with the value of the key.

	  */

	static void ReadPrivateProfile(const STRING& aSectionLabel , const STRING& aRootLabel , const STRING& aCertstoreFile , _TCHAR* aBuf);

};

#endif //__OSINTERFACE_H__