/*

* 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:  CPlaylistItem class implementation

*

*/

#include "playlistitem.h"

#include "logger.h"

_LIT( KLineFeed, "\r\n" );

_LIT( KUrl, "#EXTURL:" );

_LIT( KTitle, "#EXTTITLE:" );

_LIT( KCommentChar, "#" );

const TInt KDefaultGranularity( 5 );

CPlaylistItem* CPlaylistItem::NewLC()

    {

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

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

CPlaylistItem::~CPlaylistItem()

    {

    TRACE_FUNC;

    delete iTitle;

    delete iUrl;

    delete iDescArray;

    }

CPlaylistItem::CPlaylistItem()

    {

    }

void CPlaylistItem::ConstructL()

    {

    TRACE_FUNC;

    iTitle = KNullDesC().AllocL();

    iUrl = KNullDesC().AllocL();

    iDescArray = new (ELeave) CDesCArrayFlat(KDefaultGranularity);

    }

void CPlaylistItem::SetId( TInt aId )

    {

    iId = aId;

    }

TInt CPlaylistItem::Id() const

    {

    return iId;

    }

void CPlaylistItem::SetTitleL( const TDesC& aTitle )

    {

    delete iTitle;

    iTitle = NULL;

    iTitle = aTitle.AllocL();

    }

const TDesC& CPlaylistItem::Title() const

    {

    return *iTitle;

    }

void CPlaylistItem::SetUrlL( const TDesC& aUrl )

    {

    delete iUrl;

    iUrl = NULL;

    iUrl = aUrl.AllocL();

    }

const TDesC& CPlaylistItem::Url() const

    {

    return *iUrl;

    }

TInt CPlaylistItem::ItemCount() const

    {

    return iDescArray->MdcaCount();

    }

TPtrC16 CPlaylistItem::ItemAt( TInt aIndex ) const

    {

    return iDescArray->MdcaPoint( aIndex );

    }

TInt CPlaylistItem::FindItem( const TDesC16& aPtr, TInt& aPos, TKeyCmpText aTextComparisonType ) const

    {

    return iDescArray->Find( aPtr, aPos, aTextComparisonType );

    }

void CPlaylistItem::ExportL( RBufWriteStream& aStream ) const

    {

    TRACE_FUNC_ENTRY;

    aStream.WriteL( KUrl );

    aStream.WriteL( *iUrl, iUrl->Length() );

    aStream.WriteL( KLineFeed );

    aStream.WriteL( KTitle );

    aStream.WriteL( *iTitle, iTitle->Length() );

    aStream.WriteL( KLineFeed );

    TInt count = iDescArray->MdcaCount();

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

        {

        TPtrC16 ptr16 = iDescArray->MdcaPoint( i );

        aStream.WriteL( ptr16, ptr16.Length() );

        aStream.WriteL( KLineFeed );

        }

    aStream.CommitL();

    TRACE_FUNC_EXIT;

    }

void CPlaylistItem::ImportL( const TDesC& aBuffer )

    {

    TRACE_FUNC_ENTRY;

    iDescArray->Reset();

    TPtrC tag;

    TPtrC data;

    TInt currentPos(0);

    TInt lineLen(0);

    TBool eof(EFalse);

    while( !eof )

        {

        lineLen = ReadNextLine( aBuffer.Mid(currentPos), data );

        if ( lineLen >= 0)

            {

            if ( data.FindF( KTitle ) == 0 )

                {

                TPtrC title = data.Mid( KTitle().Length() );

                SetTitleL( title );

                }

            else if ( data.FindF( KCommentChar ) == 0 )

                {

                // ignore comment

                }

            else if ( data.Length() > 0 )

                {

                // must be song url

                AddItemL( data );

                }

            }

        else

            {

            eof = ETrue;

            }

        currentPos += lineLen;

        if ( currentPos >= aBuffer.Length() )

            {

            eof = ETrue;

            }

        }

    TRACE_FUNC_EXIT;

    }

void CPlaylistItem::AddItemL( const TDesC& aSongUri )

    {

    //LOGGER_WRITE_1("AddItem: %S", &aSongUri);

    TFileName uri(aSongUri);

    uri.LowerCase();

    uri.TrimAll();

    iDescArray->InsertIsqAllowDuplicatesL( uri );

    }

TInt CPlaylistItem::ReadNextLine( const TDesC& aBuffer, TPtrC& aLine )

    {

    //TRACE_FUNC_ENTRY;

    TInt lineLen = aBuffer.FindF( KLineFeed );

    if ( lineLen == KErrNotFound )

        {

        lineLen = aBuffer.Length();

        if ( lineLen == 0 )

            {

            //TRACE_FUNC_RET( lineLen );

            return KErrNotFound;

            }

        }

    aLine.Set( aBuffer.Mid( 0, lineLen ));

    //LOGGER_WRITE_1("aLine: %S", &aLine);

    lineLen += 2;

    //TRACE_FUNC_RET( lineLen );

    return lineLen;

    }