/*

* Copyright (c) 2010 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:  

*

*/

//  INCLUDES 

#include <e32base.h>

#include <pathinfo.h>

#include <bautils.h>

// For Logging

#include "harvesterserverlogger.h"

#include "cfileplugin.h"

#include "cfolderrenamedharvester.h"

// CONSTANTS

_LIT( KFileMask, "*.*" );

const TInt KItemsPerRun = 1;

namespace {

void AppendBackslash( TDes& aDirectory )

    {

    const TChar KBackslashChar( '\\' );

    const TInt lastChar = aDirectory.Length() - 1;

    // If it is directory which not contain backslash. 

    if ( KBackslashChar != aDirectory[lastChar] )

       {

       aDirectory.Append( KBackslashChar );

       }

    }

} // namespace

// ============================ MEMBER FUNCTIONS ===============================

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

// CFolderRenamedItem::NewL

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

//

CFolderRenamedItem * CFolderRenamedItem::NewL(const TDesC &aOldName, const TDesC &aNewName)

	{

	CFolderRenamedItem *self = new (ELeave) CFolderRenamedItem();

	CleanupStack::PushL( self );

	self->ConstructL( aOldName, aNewName );

	CleanupStack::Pop( self );

	return self;

	}

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

// CFolderRenamedItem::~CFolderRenamedItem

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

//

CFolderRenamedItem::~CFolderRenamedItem()

    {

    delete iOldName;

    delete iNewName;

    }

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

// CFolderRenamedItem::CFolderRenamedItem

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

//

CFolderRenamedItem::CFolderRenamedItem()

	{

	}

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

// CFolderRenamedItem::ConstructL

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

//

void CFolderRenamedItem::ConstructL(const TDesC &aOldName, const TDesC &aNewName)

	{

	iOldName = aOldName.AllocL();

	iNewName = aNewName.AllocL();

	}

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

// CFolderRenamedItem::OldName

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

//

const TDesC& CFolderRenamedItem::OldName()

	{

	return *iOldName;

	}

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

// CFolderRenamedItem::NewName

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

//

const TDesC& CFolderRenamedItem::NewName()

	{

	return *iNewName;

	}

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

// CFolderRenamedHarvester::NewL

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

//

CFolderRenamedHarvester* CFolderRenamedHarvester::NewL(  CFilePlugin& aFilePlugin, RFs& aFs )

	{

	CFolderRenamedHarvester* self = new (ELeave) CFolderRenamedHarvester( aFilePlugin, aFs );

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

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

// CFolderRenamedHarvester::~CFolderRenamedHarvester

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

//

CFolderRenamedHarvester::~CFolderRenamedHarvester()

    {

    delete iDir;

    delete iDirscan;

    iRenamedFolders.ResetAndDestroy();

    iRenamedFolders.Close();

    Cancel();

    }

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

// CFolderRenamedHarvester::CFolderRenamedHarvester

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

//

CFolderRenamedHarvester::CFolderRenamedHarvester(  CFilePlugin& aFilePlugin, RFs& aFs  ) 

  : CActive( CActive::EPriorityIdle ),

    iFilePlugin( aFilePlugin ),

    iFs( aFs )

    {

    CPIXLOGSTRING("ENTER CFolderRenamedHarvester::CFolderRenamedHarvester");

    CActiveScheduler::Add( this );

    CPIXLOGSTRING("END CFolderRenamedHarvester::CFolderRenamedHarvester");

    }

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

// CFolderRenamedHarvester::ConstructL

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

//

void CFolderRenamedHarvester::ConstructL()

    {

    iDirscan = CDirScan::NewL( iFs );

    }

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

// CFolderRenamedHarvester::StartL

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

//

TBool CFolderRenamedHarvester::StartL( const TFileName& aOldDirectoryName, 

									   const TFileName& aNewDirectoryName )

    {

    CPIXLOGSTRING("ENTER CFolderRenamedHarvester::Start");

    // Append trailing backslash if required

    TFileName oldName ( aOldDirectoryName );

    AppendBackslash( oldName );

    TFileName newName ( aNewDirectoryName );

    AppendBackslash( newName );

    CFolderRenamedItem *renameItem = CFolderRenamedItem::NewL( oldName, newName );

    iRenamedFolders.AppendL( renameItem );

	SetNextRequest( EFolderRenamedIdleState );

    CPIXLOGSTRING("END CFolderRenamedHarvester::Start");

    return ETrue;

    }

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

// CFolderRenamedHarvester::GetNextFolderL

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

//		

void CFolderRenamedHarvester::GetNextFolderL()

    {

    CPIXLOGSTRING("ENTER CFolderRenamedHarvester::GetNextFolderL");   

    delete iDir;

    iDir = NULL;

    // Documentation: CDirScan::NextL() The caller of this function 

    // is responsible for deleting iDir after the function has returned.

    iDirscan->NextL(iDir); 

    if( iDir )

        {

        CPIXLOGSTRING("CFolderRenamedHarvester::GetNextFolderL - IF EHarvesterGetFileId"); 

        SetNextRequest( EFolderRenamedGetFileId );

        }

    else

        {

        CPIXLOGSTRING("CFolderRenamedHarvester::GetNextFolderL - IF EHarvesterIdle");

        // finished folder rename, delete the folder from the array.

        CFolderRenamedItem *item = iRenamedFolders[0];

        iRenamedFolders.Remove(0);

        delete item;

        SetNextRequest( EFolderRenamedIdleState );

        }

    CPIXLOGSTRING("END CFolderRenamedHarvester::GetNextFolderL");

    }

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

// CFolderRenamedHarvester::GetFileIdL

// 

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

//		    

void CFolderRenamedHarvester::GetFileIdL()

    {

    CPIXLOGSTRING("ENTER CFolderRenamedHarvester::GetFileId");

    if( iCurrentIndex == 0 )

        {

        TParse parse;

        parse.Set(KFileMask(), &iDirscan->FullPath(), NULL);

        // FindWildByPath assigns iDir = NULL, then allocates the memory for it.

        // Therefore must delete iDir first.

        delete iDir;

        iDir = NULL;

        TFindFile find( iFs );

        find.FindWildByPath(parse.FullName(), NULL, iDir);

        }

    if( iDir )

        {

        const TInt count(iDir->Count());

        while( ( iCurrentIndex < count ) && ( iStepNumber < KItemsPerRun ) )

            {

            TEntry entry = (*iDir)[iCurrentIndex];

            // Check if entry is a hidden or system file

            // if true -> continue until find something to index or have checked whole directory

            if( !entry.IsHidden() && !entry.IsSystem() && !entry.IsDir() )

                {

                TParse fileParser;

                fileParser.Set( iDirscan->FullPath(), &(*iDir)[iCurrentIndex].iName, NULL );

                TPtrC fileNamePtr = fileParser.FullName();

                TPtrC leaf( fileNamePtr.Right( fileNamePtr.Length() - iNewFolderName.Length() ) );

                TFileName oldFileName( iOldFolderName );

                oldFileName.Append( leaf );

                iFilePlugin.CreateFileIndexItemL( oldFileName, ECPixRemoveAction );

                iFilePlugin.CreateFileIndexItemL( fileParser.FullName(), ECPixAddAction );

                // TODO: If this is not TRAPPED, state machine breaks 

                iStepNumber++;

                }

            iCurrentIndex++;

            }

        iStepNumber = 0;

        if( iCurrentIndex >= count )

            {

            iCurrentIndex = 0;

            SetNextRequest( EFolderRenamedStartHarvest );

            }

        else

            {

            SetNextRequest( EFolderRenamedGetFileId );

            }

        }

    else

        {

        SetNextRequest( EFolderRenamedStartHarvest );

        }

    CPIXLOGSTRING("END CFolderRenamedHarvester::GetFileId"); 

    }			

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

// CFolderRenamedHarvester::DoCancel

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

//   

void CFolderRenamedHarvester::DoCancel()

	{

	CPIXLOGSTRING("CFolderRenamedHarvester::DoCancel");

	}

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

// CFolderRenamedHarvester::RunL

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

//   

void CFolderRenamedHarvester::RunL()

    {

    CPIXLOGSTRING("ENTER CFolderRenamedHarvester::RunL");

     // Simple Round-Robin scheduling.

    Deque();

    CActiveScheduler::Add( this );

    switch ( iHarvestState )

        {

		case EFolderRenamedIdleState:

			{

			if ( iRenamedFolders.Count() == 0 )

				{

				return; // Nothing to do.

				}

			// Some rename folder action to perform

			iOldFolderName.Copy( iRenamedFolders[0]->OldName() );

			iNewFolderName.Copy( iRenamedFolders[0]->NewName() );

			iDirscan->SetScanDataL( iRenamedFolders[0]->NewName(),

						KEntryAttMatchExclusive|KEntryAttNormal,

						ESortNone, // No need to sort data

						CDirScan::EScanDownTree );

			// No break, fall through to EFolderRenamedStartHarvest case

			}

		case EFolderRenamedStartHarvest:

			{

			GetNextFolderL();

			break;

			}

		case EFolderRenamedGetFileId:

			{

			GetFileIdL();

			break;

			}

		default:

			break;

        }

    CPIXLOGSTRING("END CFolderRenamedHarvester::RunL");

    }

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

// CFolderRenamedHarvester::RunError

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

//   

TInt CFolderRenamedHarvester::RunError(TInt aError)

	{

    CPIXLOGSTRING2("CFolderRenamedHarvester::RunError - aError: %d", aError );

    iRenamedFolders.ResetAndDestroy();

	iHarvestState = EFolderRenamedIdleState;

	return KErrNone;

	}

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

// SetNextRequest

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

//

void CFolderRenamedHarvester::SetNextRequest( TFileHarvesterState aState )

    {

    CPIXLOGSTRING("CFolderRenamedHarvester::SetNextRequest");

    if ( !IsActive() )

        {

        iHarvestState = aState;

        SetActive();

        TRequestStatus* status = &iStatus;

        User::RequestComplete( status, KErrNone );

        }

    }

// End of File