/*

* Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB

*

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:

* EmbedDev AB - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include "MetaDataReader.h"

#include <utf.h>

#include <charconv.h>

#include <eikenv.h>

#include <mmf\common\mmfMeta.h>

#include "debug.h"

const TInt KMaxParseBuffer = 1024;

CMetaDataReader::CMetaDataReader(MMetaDataReaderObserver& aObserver, RFs& aFs) : iObserver(aObserver), iFs(aFs)

{

	iShow = NULL;

}

CMetaDataReader::~CMetaDataReader()

{

	if( iPlayer )

		{

		iPlayer->Close();

		delete iPlayer;

		}

	delete iParseNextShowCallBack;

	iShowsToParse.Close();

	delete iCharConverter;

}

void CMetaDataReader::ConstructL()

{

	DP("MetaDataReader::ConstructL");

	iPlayer = CMdaAudioPlayerUtility::NewL(*this);

	TCallBack callback(ParseNextShowCallbackL, this);

	iParseNextShowCallBack = new (ELeave)CAsyncCallBack(callback, CActive::EPriorityStandard);

	iCharConverter = CCnvCharacterSetConverter::NewL();

	iCharConverter->PrepareToConvertToOrFromL(KCharacterSetIdentifierIso88591, iFs); 

	iLastConverterCharset = KCharacterSetIdentifierIso88591;

}

void CMetaDataReader::SubmitShowL(CShowInfo *aShowInfo)

{

	DP("SubmitShow");

	iShowsToParse.Append(aShowInfo);

	if (iShow == NULL) {

		ParseNextShowL();

	}

}

TInt CMetaDataReader::ParseNextShowCallbackL(TAny* aMetaDataReader)

{

	static_cast<CMetaDataReader*>(aMetaDataReader)->ParseNextShowL();

	return KErrNone;

}

void CMetaDataReader::ParseNextShowL()

	{

	DP("ParseNextShow");

	iPlayer->Close();

	if (iShowsToParse.Count() == 0) {

		DP("No more shows, stopping");

		iObserver.ReadMetaDataCompleteL();

		return;

	}

	iShow = iShowsToParse[0];

	iShowsToParse.Remove(0);	

	iPlayer->OpenFileL(iShow->FileName());

}

void CMetaDataReader::MapcPlayComplete(TInt /*aError*/)

{

}

void CMetaDataReader::MapcInitComplete(TInt aError, const TTimeIntervalMicroSeconds &aDuration)

{

	DP1("MapcInitComplete, file=%S", &(iShow->FileName()));

	if(aError == KErrNone)

	{

		HBufC* buf = HBufC::New(KMaxParseBuffer);

		TInt numEntries = 0;

		if (buf != NULL && iPlayer->GetNumberOfMetaDataEntries(numEntries) == KErrNone) {

			DP1("%d meta data entries", numEntries);

			iShow->SetPlayTime((aDuration.Int64()/1000000));

			for (int i=0;i<numEntries;i++) {

				CMMFMetaDataEntry * entry = NULL;

				TRAPD(error, entry = iPlayer->GetMetaDataEntryL(i));

				if (error != KErrNone) {

					continue;

				}

				if (entry->Name() == KMMFMetaEntrySongTitle) {

					buf->Des().Copy(entry->Value());

					TRAP_IGNORE(iShow->SetTitleL(*buf));

					DP1("title: %S", &(iShow->Title()));

				} else if (entry->Name() == _L("artist")) {

					if (iShow->Description().Length() > 0) {

						buf->Des().Copy(iShow->Description());

					}

					buf->Des().Append(_L("\n"));

					buf->Des().Append(entry->Value());

					TRAP_IGNORE(iShow->SetDescriptionL(*buf));

				} else if (entry->Name() == KMMFMetaEntryAlbum) {

					if (iShow->Description().Length() > 0) {

					buf->Des().Copy(iShow->Description());

					}

					buf->Des().Append(_L("\n"));

					buf->Des().Append(entry->Value());

					TRAP_IGNORE(iShow->SetDescriptionL(*buf));

				}	

				else if (entry->Name() == KMMFMetaEntryAlbumTrack) {

					TLex lexer(entry->Value());

					TUint value = 0;

					if(lexer.Val(value) == KErrNone) {

						iShow->SetTrackNo(value);

					}

				}

			}

		}

		delete buf;

		buf = NULL;

	}

	TRAP_IGNORE(iObserver.ReadMetaDataL(*iShow));

	iPlayer->Stop();

	iShow = NULL;

	TRAP_IGNORE(ParseNextShowL());

}

void CMetaDataReader::SetIgnoreTrackNo(TBool aIgnoreTrackNo)

	{

	iIgnoreTrackNo = aIgnoreTrackNo;

	}