/*

* 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: 

*

*/

#include <f32file.h>

#include <s32file.h>

#include <pathinfo.h>

#include "sisregistrysession.h"

#include "sisregistryentry.h"

#include "sisregistrypackage.h"

using namespace Swi;

#include "installationFailedAppsCache.h"

_LIT(KInstFaildeApps, "c:\\private\\10202DCE\\instFailedAppsCache.dat");

#include "SWInstDebug.h"

// ----------------------------

// Borrowed from cleanuputils.h:-

/** 

 * Template class CleanupResetAndDestroy to clean up the array

 * of implementation information from the cleanup stack.

 * @released

 * @publishedPartner

 *

 */

template <class T>

class CleanupResetAndDestroy

	{

public:

	inline static void PushL(T& aRef);

private:

	static void ResetAndDestroy(TAny *aPtr);

	};

template <class T>

inline void CleanupResetAndDestroyPushL(T& aRef);

template <class T>

inline void CleanupResetAndDestroy<T>::PushL(T& aRef)

	{

	CleanupStack::PushL(TCleanupItem(&ResetAndDestroy,&aRef));

	}

template <class T>

void CleanupResetAndDestroy<T>::ResetAndDestroy(TAny *aPtr)

	{

	static_cast<T*>(aPtr)->ResetAndDestroy();

	}

template <class T>

inline void CleanupResetAndDestroyPushL(T& aRef)

	{

	CleanupResetAndDestroy<T>::PushL(aRef);

	}

// End of code from swi/inc/cleanuputils.h

CInstallationFailedAppsCache *CInstallationFailedAppsCache::NewL()

	{

	FLOG( _L("Daemon: CInstallationFailedAppsCache::NewL") ); 

	CInstallationFailedAppsCache *self = new(ELeave)CInstallationFailedAppsCache;

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

CInstallationFailedAppsCache::~CInstallationFailedAppsCache()

	{

	iUidsArray.Reset();

	}

void CInstallationFailedAppsCache::AddPackageUID( TUid aUid )

	{

	FLOG( _L("Daemon: CInstallationFailedAppsCache::AddPackageUID") );

	(void)iUidsArray.InsertInSignedKeyOrder( aUid );

	// New UID added to array. Let's write cache to disk.

	iNewUID = ETrue;		

	}

TBool CInstallationFailedAppsCache::HasPreviousInstallationFailed( TUid aUid )

	{

	FLOG( _L("Daemon: CInstallationFailedAppsCache::HasPreviousInstallationFailed") );

	if ( iUidsArray.FindInSignedKeyOrder( aUid ) == KErrNotFound )

		{

		FLOG( _L("Daemon: UID not found. No previous install attempt") );

		return EFalse;

		}

	FLOG( _L("Daemon: UID found. Previous install attempt FAILED") );	

	return ETrue;

	}

CInstallationFailedAppsCache::CInstallationFailedAppsCache()

	{

	}

void CInstallationFailedAppsCache::ConstructL()

	{

	User::LeaveIfError( iFs.Connect() );

	TInt drive = 0;

    iFs.CharToDrive( TParsePtrC( PathInfo::PhoneMemoryRootPath() ).Drive()[0], drive );

    iFs.CreatePrivatePath( drive );

    iNewUID = EFalse;

	// Read cache file

	TRAP_IGNORE( InitFromCacheFileL() );

	}

void CInstallationFailedAppsCache::InitFromCacheFileL()

	{

	FLOG( _L("Daemon: CInstallationFailedAppsCache::InitFromCacheFileL") );	

	// Read in existing cache file.

	RFile cacheFile;

	TInt err = cacheFile.Open( iFs, KInstFaildeApps, EFileStream|EFileRead );

	if ( err != KErrNone )

		{

		FLOG( _L("Daemon: No existing cache file to read.") );

		return; // No existing cache file to read.

		}

	CleanupClosePushL(cacheFile);

	// Now read the cache

	RFileReadStream cacheReadStream(cacheFile);

	cacheReadStream.PushL();

	iUidsArray.Reset();

	TInt32 count( cacheReadStream.ReadInt32L() );	

	for ( TInt i = 0; i < count; i++ )

		{		

		TUid packageId;

		packageId.iUid = cacheReadStream.ReadInt32L();

		(void)iUidsArray.InsertInSignedKeyOrder( packageId );

		}	

	CleanupStack::PopAndDestroy(&cacheReadStream);

	CleanupStack::PopAndDestroy(&cacheFile);

    }

void CInstallationFailedAppsCache::FlushToDiskL()

	{

    FLOG( _L("Daemon: CInstallationFailedAppsCache::FlushToDiskL") );		

	// Write to disk if new UID is added to array. 

	if ( iNewUID )

    	{

    	FLOG( _L("Daemon: Write cache to disk") );

    	RFile cacheFile;

    	TInt err = cacheFile.Open( iFs, KInstFaildeApps, EFileStream|EFileWrite );

    	// If cache was not found, create cache file.

    	if ( err != KErrNone )

    		{

    		FLOG( _L("Daemon: Create cache file.") );

    	    User::LeaveIfError( cacheFile.Create( iFs, KInstFaildeApps, EFileStream|EFileWrite ) );

    		}

    	CleanupClosePushL(cacheFile);

    	// Truncate file.

    	User::LeaveIfError( cacheFile.SetSize(0) );

    	// Now write the cache 

    	RFileWriteStream cacheWriteStream( cacheFile );

    	cacheWriteStream.PushL();

    	TInt32 count( iUidsArray.Count() );

    	cacheWriteStream.WriteInt32L( count );

    	for ( TInt i = 0; i < count; i++ )

    		{    		

    		cacheWriteStream.WriteInt32L( iUidsArray[i].iUid );

    		}	

    	cacheWriteStream.CommitL();

    	FLOG( _L("Daemon: Commit cache file.") );

    	CleanupStack::PopAndDestroy(&cacheWriteStream);

    	CleanupStack::PopAndDestroy(&cacheFile);

    	// Ok, UIDs are written to disk, set boolen to false.

    	iNewUID = EFalse;	    

    	}

	}

// End of file