/*

* Copyright (c) 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:   ?Description

*

*/

#ifndef IAUPDATEUTILS_H

#define IAUPDATEUTILS_H

#include <e32base.h>

#include <driveinfo.h>

// For silent installation

#include <SWInstDefs.h>

class TIAUpdateVersion;

class MIAUpdateNode;

namespace IAUpdateUtils

{

/**

 * Converts descriptor containing hexadecimal number to an integer.

 * Accepts "ABCD" and "0xABCD" format numbers.

 * Leaves if corrupt parameter.

 * @param aDes Descriptor representation of a hexadecimal.

 * @return TInt Converted integer.

 */

IMPORT_C TInt DesHexToIntL( const TDesC& aDes );

/**

 * Converts a version string of format <major>.<minor>.<build> to version components.

 * 

 * @note If part of the version information is not included in the aVersion,

 * then missing version parts are not set and those version part references will 

 * contain their original values. So, caller needs to initialize them correctly before

 * calling this function.

 *

 * @param aStr Version string

 * @param aMajor On return contains the major version.

 * @param aMinor On return contains the minor version.

 * @param aBuild On return contains the build number.

*/

IMPORT_C void DesToVersionL( const TDesC& aVersion, 

                             TInt8& aMajor, TInt8& aMinor, TInt16& aBuild );

/**

 * Checks if application is installed.

 * Function is able to check if the given UID is SID or pUID. If SID is given then

 * the package where it is included is returned. If pUID is given, then the pUID is

 * returned.

 * @param aUid SID or pUID of the application

 * @return TUid pUID of the application. If app not found TUid::Null() returned.

 **/

IMPORT_C TUid AppPackageUidL( const TUid& aUid );

/**

 * Checks if application is installed, and if so, returns its version and the pUid.

 * Function is able to check if the given UID is SID or pUID. If SID is given then

 * the package where it is included is returned. If pUID is given, then the pUID is

 * returned.

 * @param aUid SID or pUID of the application

 * @param aVersion Returned version if app is found. If app not found, unchanged

 * @return TUid pUID of the application. If app not found TUid::Null() returned.

 **/

IMPORT_C TUid AppPackageUidL( const TUid& aUid, TIAUpdateVersion &aVersion );

/**

 * Checks if application is installed.

 * Function is able to check if the given UID is SID or pUID.

 * @param aUid SID or pUID of the application

 * @return ETrue if application is installed on the device

 **/

IMPORT_C TBool IsAppInstalledL( const TUid& aUid );    

/**

 * Checks if application is installed, and if so, returns its version.

 * Function is able to check if the given UID is SID or pUID.

 * @param aUid SID or pUID of the application

 * @param aVersion Returned version if app is found. If app not found, unchanged

 * @return ETrue if application is installed on the device

 **/

IMPORT_C TBool IsAppInstalledL( const TUid& aUid, TIAUpdateVersion &aVersion );

IMPORT_C TBool SpaceAvailableInInternalDrivesL( 

                                         RPointerArray<MIAUpdateNode>& aNodes );

/**

 * 

 * Reads from sis registry existence of exe in installation

 * 

 * @param aPUid Package UID of installation

 * @param aExecutable Exe file name 

 *

 * @return ETrue if exe is found in gvben installation

 **/

IMPORT_C TBool IsInstalledL( const TUid& aPUid, const TDesC& aExecutable );  

/**

 * Creates options for silent install.

 * Uses DriveToInstallL to etermine target drive to install.

 * 

 * @param aUid PUID of the application

 * @param aSize Estimated size of installation

 */

IMPORT_C SwiUI::TInstallOptions SilentInstallOptionsL( const TUid& aUid,

                                                       TInt aSize );

/**

 * Finds drive where a package is currently installed

 * 

 * @param aLocationDrive Drive where a package is currently installed

 * @return ETrue if a package previously installed to an available drive

 **/

TBool InstalledDriveL( const TUid& aUid, TDriveUnit& aLocationDrive );

TBool NextInternalDriveL( RFs& aFs, 

                          TDriveUnit aCurrentDrive, 

                          TDriveUnit& aNextDrive );

/**

 * Determines target drive to install

 * 

 * @param aUid PUID of the application

 * @param aSize Estimated size of installation

 * @return Drive to install

 **/

TDriveUnit DriveToInstallL( const TUid& aUid, TInt aSize );

TDriveUnit BiggestInternalDriveL();

TBool InternalDriveWithSpaceL( TInt aSize, 

                               TDriveUnit aPreferredDriveUnit, 

                               TDriveUnit& aTargetDriveUnit );

void SaveCurrentFwVersionIfNeededL();

TBool IsFirmwareChangedL(); 

TInt64 FreeDiskSpace( RFs& aFs, TInt aDriveNumber );

}

#endif  //  IAUPDATEUTILS_H