/*

* Copyright (c) 2002 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:   The class converts from a stream to one or more agenda

*                entries.

*

*/

//debug

#include "calendarengines_debug.h"

// INCLUDE FILES

#include "CalenImporter.h"

#include "AgnExternalInterface.h"

#include <agnimportobserver.h>

#include <caldataexchange.h>

#include <calentry.h>

#include <caldataformat.h>

#include <featmgr.h>

#include <coemain.h>

//#include <AgnVersit.h>  // not used because of symbian's Sphinx release

// LOCAL CONSTANTS AND MACROS

_LIT8( KICalMimeType, "text/calendar" );

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

// Two-phased constructor.

EXPORT_C CCalenImporter* CCalenImporter::NewL( CCalSession& aSession )

    {

    TRACE_ENTRY_POINT;

    CCalenImporter* self = new (ELeave) CCalenImporter( aSession );

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(); // self

    TRACE_EXIT_POINT;

    return self;

    }

// Destructor.

EXPORT_C CCalenImporter::~CCalenImporter()

    {

    TRACE_ENTRY_POINT;

    delete iICalInterface;

    delete iVCalDataExchange;

    FeatureManager::UnInitializeLib();

    TRACE_EXIT_POINT;

    }

// C++ default constructor.

CCalenImporter::CCalenImporter( CCalSession& aSession ) : 

    iSession( aSession )

    {

    TRACE_ENTRY_POINT;

    //Debug counter, used for incrementing the file number

    #ifdef TRACE_TO_FILE_IMPORT

        iFileNumber = 0;

    #endif

    iImportMode=ECalenImportModeNormal;

    TRACE_EXIT_POINT;

    }

// By default Symbian OS constructor is private.

void CCalenImporter::ConstructL()

    {

    TRACE_ENTRY_POINT;

    FeatureManager::InitializeLibL(); 

    TRACE_EXIT_POINT;

    }

// Possibility to set the import mode for importer to use e.g. japanese charset.

EXPORT_C void CCalenImporter::SetImportMode(TCalenImportMode aImportMode)

    {

    TRACE_ENTRY_POINT;

    iImportMode=aImportMode;

    TRACE_EXIT_POINT;

    }

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

// CCalenImporter::ImportVCalendarL

// Import vCalendar entries from aReadStream to aArray. 

// (other items were commented in a header).

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

//

EXPORT_C void CCalenImporter::ImportVCalendarL( 

    RReadStream& aReadStream, 

    RPointerArray<CCalEntry>& aArray )

    {

    TRACE_ENTRY_POINT;

    //Debug - Write the vCal to file

    #ifdef TRACE_TO_FILE_IMPORT

        DebugPrintFunction( aReadStream );

    #endif

    if( ! iVCalDataExchange )

        {

        iVCalDataExchange = CCalDataExchange::NewL( iSession );

        }

// check if extended flag is on and japanese variant is on.

    if ( (iImportMode==ECalenImportModeExtended) && (FeatureManager::FeatureSupported(KFeatureIdJapanese) ))

        {

        // if Japanese flag is set we will pass Japanese charset flag to ImportL

        iVCalDataExchange->ImportL( KUidVCalendar, aReadStream, aArray,KCalDataExchangeDefaultShiftJIS);

        }

// we use normal method (ECalenImportModeNormal)

    else

        {

    	iVCalDataExchange->ImportL( KUidVCalendar, aReadStream, aArray );

        }

	TRACE_EXIT_POINT;

    }

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

// CCalenImporter::ImportICalendarL

// Import iCalendar entries from aReadStream to aArray. 

// (other items were commented in a header).

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

//

EXPORT_C void CCalenImporter::ImportICalendarL( 

    RReadStream& aReadStream, 

    RPointerArray<CCalEntry>& aArray )

    {

    TRACE_ENTRY_POINT;

    //Debug - Write the iCal to file

    #ifdef TRACE_TO_FILE_IMPORT

        DebugPrintFunction( aReadStream );

    #endif

    if( ! iICalInterface )

        {

        iICalInterface = CAgnExternalInterface::NewL( KICalMimeType );

        }        

	iICalInterface->ImportL( aArray, aReadStream, 0, *this ); 

	TRACE_EXIT_POINT;   

    }

MAgnImportObserver::TImpResponse CCalenImporter::AgnImportErrorL(

    TImpError /*aType*/,

    const TDesC8& /*aUid*/,

    const TDesC& /*aContext*/ )

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    return EImpResponseContinue;

    }

#ifdef TRACE_TO_FILE_IMPORT

    //Wrapper function to write the readstream to file

    void CCalenImporter::DebugPrintFunction( RReadStream& aReadStream ) 

        {

        TRAPD( error, WriteReadStreamToFileL( aReadStream ) );

        //Even if WriteReadStreamToFileL leaves we want to reset the file

        //because we don't know which function left

        TRAP( error, ResetReadStreamL( aReadStream ));

        }

    //Writes the stream to a file

    void CCalenImporter::WriteReadStreamToFileL( RReadStream& aReadStream ) 

        {

        TBuf<50> fileName;

        _LIT(KDefaultFileName, "C://calenImp_%d.txt");

        fileName.Format( KDefaultFileName, iFileNumber );

        RFs aFs;

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

        CleanupClosePushL(aFs);

        aFs.MkDirAll(KDefaultFileName);

        RFileWriteStream rs;

        User::LeaveIfError(rs.Replace(aFs, fileName, EFileWrite));

        CleanupClosePushL(rs);

        rs.WriteL( aReadStream );

        rs.CommitL();

        CleanupStack::PopAndDestroy(&rs);

        CleanupStack::PopAndDestroy(&aFs);

        //Increase the filenumber with one, a new file is created for each vCal/iCal

        ++iFileNumber;

        }

    //Resets the stream pointer to point to begining of stream

    void CCalenImporter::ResetReadStreamL( RReadStream& aReadStream ) 

        {

        //Set the read pointer to point to the beginning of the stream

        TStreamPos pos( 0 );

        MStreamBuf* streamBuf = aReadStream.Source();

        streamBuf->SeekL( MStreamBuf::ERead, pos );

        }

#endif

// ================= OTHER EXPORTED FUNCTIONS ==============

//

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

// E32Dll(TDllReason)

// Entry point function for Symbian OS Apps

// Returns: KErrNone: No error

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

//

#ifndef EKA2

GLDEF_C TInt E32Dll(TDllReason)

    {

    return KErrNone;

    }

#endif

// End of File