/*

* Copyright (c) 2005-2007 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:  OMA DS Folder object XML parser

*

*/

#include <SenXmlUtils.h>

#include <utf.h>

#include "omadsfolderobject.h"

#include "logger.h"

_LIT8(KOMADSFolderElement, "Folder");

_LIT8(KOMADSNameElement, "name");

_LIT8(KOMADSCreatedElement, "created");

_LIT8(KOMADSModifiedElement, "modified");

_LIT(KFolderBeginTag, "<Folder>");

_LIT(KFolderEndTag, "</Folder>");

_LIT(KNameBeginTag, "<name>");

_LIT(KNameEndTag, "</name>");

_LIT(KCreatedBeginTag, "<created>");

_LIT(KCreatedEndTag, "</created>");

_LIT(KModifiedBeginTag, "<modified>");

_LIT(KModifiedEndTag, "</modified>");

_LIT(KDateFormat, "%04d%02d%02dT%02d%02d%02d");

COMADSFolderObject* COMADSFolderObject::NewLC()

    {

    COMADSFolderObject* pSelf = new (ELeave) COMADSFolderObject;

    CleanupStack::PushL( pSelf );

    pSelf->ConstructL();

    return pSelf;

    }

COMADSFolderObject* COMADSFolderObject::NewL()

    {

    COMADSFolderObject* pSelf = COMADSFolderObject::NewLC();

    CleanupStack::Pop( pSelf );    

    return pSelf;

    }

COMADSFolderObject::~COMADSFolderObject()

    {

    delete iXmlReader;

    }

void COMADSFolderObject::ConstructL()

    {

    iXmlReader = CSenXmlReader::NewL();

    iXmlReader->SetContentHandler(*this);

    }

TInt COMADSFolderObject::ImportFolderXml( RFs& aFs, const TDesC& aFilename )

    {

    LOGGER_ENTERFN( "COMADSFolderObject::ImportFolderXml" );    

    TInt error;

    Reset();

    TRAP( error, iXmlReader->ParseL( aFs, aFilename ) )

    if( error != KErrNone )

        {

        LOGGER_LEAVEFN( "COMADSFolderObject::ImportFolderXml" );

        return error;

        }

    LOGGER_LEAVEFN( "COMADSFolderObject::ImportFolderXml" );

    return iError;

    }

TInt COMADSFolderObject::ImportFolderXml( const TDesC8& aData )

    {

    LOGGER_ENTERFN( "COMADSFolderObject::ImportFolderXml" );

    LOG(aData);     

    TInt error;

    Reset();

    TRAP(error, iXmlReader->ParseL(aData) );

    if(error != KErrNone )

        {

        LOGGER_LEAVEFN( "COMADSFolderObject::ImportFolderXml" );

        return error;

        }

    LOGGER_LEAVEFN( "COMADSFolderObject::ImportFolderXml" );

    return iError;

    }

void COMADSFolderObject::ExportFolderXmlL( CBufBase& aBuffer )

    {

    iDesc = NULL;

    iBuffer = &aBuffer;

    iWriteBufPosition = 0;

    iWriteBufSize = aBuffer.Size();     

    ExportL();

    }

void COMADSFolderObject::ExportFolderXmlL( TDes8& aBuffer )

    {

    iDesc = &aBuffer;

    iBuffer = NULL;

    ExportL();

    }

void COMADSFolderObject::ExportL()

    {

    // Folder

    WriteL( KFolderBeginTag );

    // Name

    WriteL( KNameBeginTag );

    WriteEncodedXmlL( iName );

    WriteL( KNameEndTag );

    // Created Date

    TBuf<32> tempdate;

    tempdate.Format( KDateFormat, iCreatedDate.Year(), iCreatedDate.Month() + 1,

        iCreatedDate.Day(), iCreatedDate.Hour(), iCreatedDate.Minute(), iCreatedDate.Second() );

    WriteL( KCreatedBeginTag );

    WriteL( tempdate );

    WriteL( KCreatedEndTag );

    // Modified Date

    tempdate.Format( KDateFormat, iModifiedDate.Year(), iModifiedDate.Month() + 1,

        iModifiedDate.Day(), iModifiedDate.Hour(), iModifiedDate.Minute(), iModifiedDate.Second() );

    WriteL( KModifiedBeginTag );

    WriteL( tempdate );

    WriteL( KModifiedEndTag );

    // Folder end

    WriteL(KFolderEndTag);

    }

void COMADSFolderObject::WriteL( const TDesC &aData )

    {   

    CnvUtfConverter converter;

    User::LeaveIfError( converter.ConvertFromUnicodeToUtf8( iTemp, aData ) );

    if ( iBuffer )

        {

        TInt newPosition = iWriteBufPosition + iTemp.Length();

        if ( newPosition > iWriteBufSize )

            {

            TInt expand = newPosition - iWriteBufSize;

            iBuffer->ExpandL( iWriteBufSize, expand );

            iWriteBufSize += expand;

            }

        iBuffer->Write( iWriteBufPosition, iTemp );

        iWriteBufPosition = newPosition;

        }

    else if( iDesc )

        {

        iDesc->Append( iTemp );       

        }   

    }

void COMADSFolderObject::WriteEncodedXmlL( const TDesC &aData )

    {   

    CnvUtfConverter converter;

    User::LeaveIfError( converter.ConvertFromUnicodeToUtf8( iTemp, aData ) );

    HBufC8* xmlData = SenXmlUtils::EncodeHttpCharactersLC( iTemp ); 

    if ( iBuffer )

        {

        TInt newPosition = iWriteBufPosition + xmlData->Length();

        if ( newPosition > iWriteBufSize )

            {

            TInt expand = newPosition - iWriteBufSize;

            iBuffer->ExpandL( iWriteBufSize, expand );

            iWriteBufSize += expand;

            }

        iBuffer->Write( iWriteBufPosition, *xmlData );

        iWriteBufPosition = newPosition;

        }

    else if( iDesc )

        {

        iDesc->Append( *xmlData );

        }   

    CleanupStack::PopAndDestroy( xmlData );   

    }           

TInt COMADSFolderObject::StartDocument()

    {

    return KErrNone;

    }

TInt COMADSFolderObject::EndDocument()

    {

    return KErrNone;

    }

TInt COMADSFolderObject::StartElement(const TDesC8& /*aURI*/, 

                  const TDesC8& /*aLocalName*/, 

                  const TDesC8& aName, 

                  const RAttributeArray& /*apAttrs*/)

    {

    LOGGER_ENTERFN( "COMADSFolderObject::StartElement" );

    LOG( aName );    

    iCurrentElement.Copy( aName );

    LOGGER_LEAVEFN( "COMADSFolderObject::StartElement" );

    return KErrNone;

    }

TInt COMADSFolderObject::EndElement( const TDesC8& /*aURI*/, 

    const TDesC8& /*aLocalName*/, const TDesC8& /*aName*/ )

    {

    LOGGER_ENTERFN( "COMADSFolderObject::EndElement" );        

    iCurrentElement.SetLength(0);

    LOGGER_LEAVEFN( "COMADSFolderObject::EndElement" );

    return KErrNone;

    }

TInt COMADSFolderObject::Characters( const TDesC8& aBuf, TInt aStart, TInt aLength )

    {

    LOGGER_ENTERFN( "COMADSFolderObject::Characters" );

    LOG(aBuf);    

    TInt error;

    if( iCurrentElement.Compare( KOMADSFolderElement ) == 0 )

        {

        LOGGER_LEAVEFN( "COMADSFolderObject::Characters" );

        return KErrNone;

        }

    else if ( iCurrentElement.Compare( KOMADSNameElement ) == 0 )

        {                

        CnvUtfConverter converter;

        TBuf<KMaxFolderNameLength> buf;

        error = converter.ConvertToUnicodeFromUtf8( buf, aBuf.Mid( aStart, aLength ) );

        TInt length = buf.Length() + iName.Length();

        if ( error > 0 )

            {

            LOGGER_MSG_EC("Too long name, number of uncorverted bytes: %d", error);

            }

        else if ( error != KErrNone )

            {

            LOGGER_MSG_EC("ConvertToUnicodeFromUtf8 failed with %d", error);

            iError = error;

            }

        else if ( length > iName.MaxLength() )

            {

            LOGGER_MSG_EC("Too long name total: %d", length);

            }

        else

            {

            iName.Append( buf );

            }       

        }

    else if ( iCurrentElement.Compare( KOMADSCreatedElement ) == 0 )

        {

        error = ParseDateString( aBuf.Mid( aStart, aLength ), iCreatedDate );

        if( error != KErrNone )

            {

            iError = error;

            }

        }

    else if ( iCurrentElement.Compare( KOMADSModifiedElement ) == 0 )

        {

        error = ParseDateString( aBuf.Mid( aStart, aLength ), iModifiedDate );

        if ( error != KErrNone )

            {

            iError = error;

            }

        }

    LOGGER_LEAVEFN( "COMADSFolderObject::Characters" );

    return KErrNone;

    }

TInt COMADSFolderObject::ParseDateString(const TDesC8& aString, TDateTime& aDateTime)

    {

    // Ensure we don't read beyond the buffer limits

    if ( aString.Length() < 15 )

        {

        return KErrArgument;

        }

    // Extract the fields from the string

    TLex8 yearDesc( aString.Mid( 0, 4 ) );

    TLex8 monthDesc( aString.Mid( 4, 2 ) );

    TLex8 dayDesc( aString.Mid( 6, 2 ) );

    // Skip one character here, it's supposed to be 'T'

    TLex8 hourDesc( aString.Mid( 9, 2 ) );

    TLex8 minuteDesc( aString.Mid( 11, 2 ) );

    TLex8 secondDesc( aString.Mid( 13, 2 ) );

    TInt year, month, day, hour, minute, second;

    TInt error;

    // Fetch the values to temporary variables

    if ( ( error = yearDesc.Val(year) ) != KErrNone )

        return error;

    if ( ( error = monthDesc.Val(month) ) != KErrNone )

        return error;

    if ( ( error = dayDesc.Val(day) ) != KErrNone )

        return error;

    if ( ( error = hourDesc.Val(hour) ) != KErrNone )

        return error;

    if ( ( error = minuteDesc.Val(minute) ) != KErrNone )

        return error;

    if ( ( error = secondDesc.Val(second) ) != KErrNone )

        return error;

    // Assign values to datetime object

    if ( ( error = aDateTime.SetYear(year) ) != KErrNone )

        return error;

    if ( ( error = aDateTime.SetMonth((TMonth)(month-1) )) != KErrNone )

        return error;

    if ( ( error = aDateTime.SetDay(day) ) != KErrNone )

        return error;

    if ( ( error = aDateTime.SetHour(hour) ) != KErrNone )

        return error;

    if ( ( error = aDateTime.SetMinute(minute) ) != KErrNone )

        return error;

    if ( ( error = aDateTime.SetSecond(second) ) != KErrNone )

        return error;

    return KErrNone;

    }

void COMADSFolderObject::Reset()

    {

    iError = KErrNone;

    iName.SetLength( 0 );

    iCreatedDate.Set( 2005, EJanuary, 1, 0, 0, 0, 0 );

    iModifiedDate.Set( 2005, EJanuary, 1, 0, 0, 0, 0 );

    }

TInt COMADSFolderObject::Error( TInt aErrorCode )

    {

    iError = aErrorCode;

    return KErrNone;

    }