/*

* 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"

_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" );  

    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_WRITE_1("Too long name, number of uncorverted bytes: %d", error);

            }

        else if ( error != KErrNone )

            {

            LOGGER_WRITE_1("ConvertToUnicodeFromUtf8 failed with %d", error);

            iError = error;

            }

        else if ( length > iName.MaxLength() )

            {

            LOGGER_WRITE_1("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;

    }