/*
* Copyright (c) 2006-2009 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:  Harvester audio plugin
*
*/


#include <e32base.h>
#include <harvesterdata.h>
#include <mdenamespacedef.h>
#include <mdeobjectdef.h>
#include <mdeobject.h>
#include <centralrepository.h>
#include <caf/caf.h>

#include "harvesteraudioplugin.h"
#include "harvesteraudiopluginutils.h"
#include "mdsutils.h"
#include "mdscommoninternal.h"

#include "harvesterlog.h"

const TInt KMimeLength( 10 );
const TUid KHarvesterRepoUid = { 0x200009FE };
const TUint32 KEnableAlbumArtHarvest = 0x00090001;

_LIT( KExtensionWma,    "wma" );

CHarvesterAudioPluginPropertyDefs::CHarvesterAudioPluginPropertyDefs() : CBase()
	{
	}

void CHarvesterAudioPluginPropertyDefs::ConstructL(CMdEObjectDef& aObjectDef)
	{
	CMdENamespaceDef& nsDef = aObjectDef.NamespaceDef();

	// Common property definitions
	CMdEObjectDef& objectDef = nsDef.GetObjectDefL( MdeConstants::Object::KBaseObject );
	iCreationDatePropertyDef = &objectDef.GetPropertyDefL( MdeConstants::Object::KCreationDateProperty );
	iLastModifiedDatePropertyDef = &objectDef.GetPropertyDefL( MdeConstants::Object::KLastModifiedDateProperty );
	iSizePropertyDef = &objectDef.GetPropertyDefL( MdeConstants::Object::KSizeProperty );
	iItemTypePropertyDef = &objectDef.GetPropertyDefL( MdeConstants::Object::KItemTypeProperty );
	iTitlePropertyDef = &objectDef.GetPropertyDefL( MdeConstants::Object::KTitleProperty );
    iTimeOffsetPropertyDef = &objectDef.GetPropertyDefL( MdeConstants::Object::KTimeOffsetProperty );

	// Media property definitions
	CMdEObjectDef& mediaDef = nsDef.GetObjectDefL( MdeConstants::MediaObject::KMediaObject );
	iRatingPropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KRatingProperty );
	iGenrePropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KGenreProperty );
	iArtistPropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KArtistProperty );
	iDurationPropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KDurationProperty );
	iCopyrightPropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KCopyrightProperty );
	iTrackPropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KTrackProperty );
	iThumbnailPropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KThumbnailPresentProperty );
	iDatePropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KReleaseDateProperty );
    iDrmPropertyDef = &mediaDef.GetPropertyDefL( MdeConstants::MediaObject::KDRMProperty );

	// Audio property definitions
	CMdEObjectDef& audioDef = nsDef.GetObjectDefL( MdeConstants::Audio::KAudioObject );
	iAlbumPropertyDef = &audioDef.GetPropertyDefL( MdeConstants::Audio::KAlbumProperty );
	iComposerPropertyDef = &audioDef.GetPropertyDefL( MdeConstants::Audio::KComposerProperty );
	iOriginalArtistPropertyDef = &audioDef.GetPropertyDefL( MdeConstants::Audio::KOriginalArtistProperty );
	}

CHarvesterAudioPluginPropertyDefs* CHarvesterAudioPluginPropertyDefs::NewL(CMdEObjectDef& aObjectDef)
	{
	CHarvesterAudioPluginPropertyDefs* self = 
		new (ELeave) CHarvesterAudioPluginPropertyDefs();
	CleanupStack::PushL( self );
	self->ConstructL( aObjectDef );
	CleanupStack::Pop( self );
	return self;
	}

using namespace MdeConstants;

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::CHarvesterAudioPlugin
// ---------------------------------------------------------------------------
//    
CHarvesterAudioPlugin::CHarvesterAudioPlugin() : CHarvesterPlugin(),
    iAudioParser( NULL ), iPropDefs( NULL ), iTNM( NULL ), iHarvestAlbumArt( EFalse )
	{
	}

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::NewL
// ---------------------------------------------------------------------------
//    
CHarvesterAudioPlugin* CHarvesterAudioPlugin::NewL()
	{
	WRITELOG( "CHarvesterAudioPlugin::NewL()" );
	CHarvesterAudioPlugin* self = new (ELeave) CHarvesterAudioPlugin();
	CleanupStack::PushL( self );
	self->ConstructL();
	CleanupStack::Pop( self );
	
	return self;
	}

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::~CHarvesterAudioPlugin
// ---------------------------------------------------------------------------
//    
CHarvesterAudioPlugin::~CHarvesterAudioPlugin()
	{
	WRITELOG( "CHarvesterAudioPlugin::~CHarvesterAudioPlugin()" );
	
	delete iAudioParser;
	delete iPropDefs;
	delete iTNM;
	}

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::ConstructL
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::ConstructL()
	{
	WRITELOG( "CHarvesterAudioPlugin::ConstructL()" );
	
    CRepository* rep = CRepository::NewLC( KHarvesterRepoUid );
    // If data could not be fetched, default to non-album art mode
    rep->Get( KEnableAlbumArtHarvest, iHarvestAlbumArt );
    CleanupStack::PopAndDestroy( rep );   
	
	iAudioParser = CAudioMDParser::NewL( iHarvestAlbumArt );
    
    if( iHarvestAlbumArt )
        {
        TRAP_IGNORE( iTNM = CThumbnailManager::NewL( *this ) );
        }
	}

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::HarvestL (from CHarvesterPlugin)
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::HarvestL( CHarvesterData* aHD )
	{
	WRITELOG( "CHarvesterAudioPlugin::HarvestL()" );
	
	TRAPD( error, DoHarvestL( aHD ) );
	if ( error != KErrNone )
	    {
        WRITELOG1( "CHarvesterAudioPlugin::HarvestL() - error: %d", error );
        TInt convertedError = KErrNone;
        MdsUtils::ConvertTrapError( error, convertedError );
        aHD->SetErrorCode( convertedError );
        WRITELOG1( "CHarvesterAudioPlugin::HarvestL() - returning: %d", convertedError );
	    
	    }
	}

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::ThumbnailPreviewReady 
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::ThumbnailPreviewReady( MThumbnailData& /*aThumbnail*/,
    TThumbnailRequestId /*aId*/ )
    {
    // Pass through, nothing to do
    }

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::ThumbnailReady
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::ThumbnailReady( TInt /*aError*/, 
    MThumbnailData& /*aThumbnail*/,
    TThumbnailRequestId /*aId*/ )
    {
    // Pass through, nothing to do
    }

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::GetMimeType (from CHarvesterPlugin)
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::GetMimeType( const TDesC& aUri, TDes& aMimeType )
    {
    aMimeType.Zero();
    
    const TMimeTypeMapping<TAudioMetadataHandling>* mapping = 
        iAudioParser->ParseMimeType( aUri );

    if ( !mapping )
        {
        return;
        }
    
    aMimeType = mapping->iMimeType;
    }

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::DoHarvestL
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::DoHarvestL( CHarvesterData* aHD )
	{
	WRITELOG( "CHarvesterAudioPlugin::DoHarvestL()" );
    CMdEObject& mdeObject = aHD->MdeObject();
        
    TBool isAdd = EFalse;
    if ( mdeObject.Placeholder() || mdeObject.Id() == KNoId ) // is a new object or placeholder
        {
        isAdd = ETrue;
        }

    GetPropertiesL( aHD, isAdd );
	}


// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::GetPropertiesL
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::GetPropertiesL( CHarvesterData* aHD,
                                            TBool aIsAdd )
    {
    CMdEObject& mdeObject = aHD->MdeObject();
    
    // get creation time, modified time and file size
    if( !mdeObject.Placeholder() )
        {
        GetPlaceHolderPropertiesL( aHD, aIsAdd );
        }
    
    const TMimeTypeMapping<TAudioMetadataHandling>* mapping = 
    	GetMimeTypePropertyL( aHD, aIsAdd );

    if( mapping )
    	{
		// get properties for file types supported by CMetaDataUtility.
    	if( mapping->iHandler == EMetaDataUtilityHandling )
    		{
    		GetMusicPropertiesL( aHD, aIsAdd );
    		}
    	}
    }

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::GetPlaceHolderPropertiesL
// Get placeholder properties (creation time, modify time and file size).
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::GetPlaceHolderPropertiesL( CHarvesterData* aHD,
                               TBool aIsAdd )
    {
    CMdEObject& mdeObject = aHD->MdeObject();
    
    const TDesC& uri = mdeObject.Uri();
    
    TEntry entry;
    TInt err = iFs.Entry( uri, entry );
    
    if ( err!= KErrNone )
        {
        User::Leave( err ); // metadata cannot be gathered!
        }
    
    TTimeIntervalSeconds timeOffsetSeconds = User::UTCOffset();
    TTime localModifiedDate = entry.iModified + timeOffsetSeconds;
	
	if( !iPropDefs )
		{
		CMdEObjectDef& objectDef = mdeObject.Def();
		iPropDefs = CHarvesterAudioPluginPropertyDefs::NewL( objectDef );
		// Prefetch max text lengt for validity checking
		iMaxTextLength = iPropDefs->iCopyrightPropertyDef->MaxTextLengthL();
		}
	
	CMdeObjectWrapper::HandleObjectPropertyL(
                 mdeObject, *iPropDefs->iCreationDatePropertyDef, &localModifiedDate, aIsAdd );

	CMdeObjectWrapper::HandleObjectPropertyL(
             mdeObject, *iPropDefs->iLastModifiedDatePropertyDef, &entry.iModified, aIsAdd );

	CMdeObjectWrapper::HandleObjectPropertyL(
              mdeObject, *iPropDefs->iSizePropertyDef, &entry.iSize, aIsAdd );
	
	mdeObject.SetPlaceholder( EFalse );
    }

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::GetMimeTypePropertyL
// Get mime type.
// ---------------------------------------------------------------------------
//    
const TMimeTypeMapping<TAudioMetadataHandling>* CHarvesterAudioPlugin::GetMimeTypePropertyL( 
		CHarvesterData* aHD, TBool aIsAdd )
    {
    CMdEObject& mdeObject = aHD->MdeObject();
 
    const TMimeTypeMapping<TAudioMetadataHandling>* mapping = 
    	iAudioParser->ParseMimeType( mdeObject.Uri() );
    
    if ( mapping && !mdeObject.Placeholder() )
        {
    	if( !iPropDefs )
    		{
    		CMdEObjectDef& objectDef = mdeObject.Def();
    		iPropDefs = CHarvesterAudioPluginPropertyDefs::NewL( objectDef );
    		// Prefetch max text lengt for validity checking
    		iMaxTextLength = iPropDefs->iCopyrightPropertyDef->MaxTextLengthL();
    		}
        
    	CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
    			*iPropDefs->iItemTypePropertyDef, (TAny*)&(mapping->iMimeType), aIsAdd );
        }
    
    return mapping;
    }

// ---------------------------------------------------------------------------
// CHarvesterAudioPlugin::GetMusicPropertiesL
// ---------------------------------------------------------------------------
//    
void CHarvesterAudioPlugin::GetMusicPropertiesL( CHarvesterData* aHD,
                                      TBool aIsAdd )
    {
#ifdef _DEBUG
    TTime dStart, dStop;
    dStart.UniversalTime();
    dStop.UniversalTime();
    WRITELOG1( "CHarvesterAudioPlugin::GetMusicPropertiesL start %d us", (TInt)dStop.MicroSecondsFrom(dStart).Int64() );
#endif
    
    CMdEObject& mdeObject = aHD->MdeObject();
    const TDesC& uri = mdeObject.Uri();
 
    if( !iPropDefs )
        {
        CMdEObjectDef& audioObjectDef = mdeObject.Def();
        iPropDefs = CHarvesterAudioPluginPropertyDefs::NewL( audioObjectDef );
        // Prefetch max text lengt for validity checking
        iMaxTextLength = iPropDefs->iCopyrightPropertyDef->MaxTextLengthL();
        }
    
    TPtrC ext;
    MdsUtils::GetExt( uri, ext );
    
    // Check for possibly protected content
    if( ext.CompareF( KExtensionWma ) == 0 )
        {
        ContentAccess::CContent* content = ContentAccess::CContent::NewLC( uri );
        ContentAccess::CData* data = content->OpenContentLC( ContentAccess::EPeek );
        
        TBool protectedContent( EFalse );
        TInt err = data->GetAttribute( ContentAccess::EIsProtected, protectedContent );
        if( err == KErrNone && protectedContent )
            {
            CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
                    *iPropDefs->iDrmPropertyDef, &protectedContent, aIsAdd );
            }
        CleanupStack::PopAndDestroy( 2 ); // content, data
        }
    
    TBool parsed( EFalse );
    TRAPD( parseError, parsed = iAudioParser->ParseL( uri ) );

    if( !parsed || (parseError != KErrNone) )
    	{
    	iAudioParser->ResetL();
    	return;
    	}

    // We do not want to get all long text fields at this time
    TPtrC song      = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldSong );
    TPtrC artist    = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldArtist );
    TPtrC album     = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldAlbum );
    TPtrC genre     = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldGenre );
    TPtrC composer  = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldComposer );
    TPtrC rating    = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldRating );
    TPtrC orgArtist = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldOriginalArtist );
    TPtrC track     = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldTrack );
    TPtrC duration  = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldDuration );
    TPtrC copyright     = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldCopyright );
    TPtrC date     = iAudioParser->MetaDataFieldL( CAudioMDParser::EAudioMDFieldDate );
    
    TPtrC8 jpeg = iAudioParser->MetaDataField8L( CAudioMDParser::EAudioMDFieldJpeg );
 
    // Time offset
    TTimeIntervalSeconds timeOffsetSeconds = User::UTCOffset();
    TInt16 timeOffsetMinutes = timeOffsetSeconds.Int() / 60;
    CMdeObjectWrapper::HandleObjectPropertyL(mdeObject, *iPropDefs->iTimeOffsetPropertyDef, &timeOffsetMinutes, aIsAdd );
	
    if ( song.Length() > 0
        && song.Length() < KMaxTitleFieldLength )
        {    
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iTitlePropertyDef, &song, EFalse );
        }

    if ( artist.Length() > 0
        && artist.Length() < iMaxTextLength )
        {
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iArtistPropertyDef, &artist, aIsAdd );
        }

    if ( album.Length() > 0
        && album.Length() < iMaxTextLength )
        {
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iAlbumPropertyDef, &album, aIsAdd );
        }
 
    if ( genre.Length() > 0
        && genre.Length() < iMaxTextLength )
        {
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iGenrePropertyDef, &genre, aIsAdd );
        }

    if ( composer.Length() > 0
        && composer.Length() < iMaxTextLength )
        {
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iComposerPropertyDef, &composer, aIsAdd );
        }

    if ( rating.Length() > 0 )
        {
        TLex ratingLex( rating );
        TUint8 ratingValue( 0 );
        const TInt error( ratingLex.Val( ratingValue, EDecimal ) );
        if( error == KErrNone )
            {
            CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
                *iPropDefs->iRatingPropertyDef, &ratingValue, aIsAdd );        
            }
        }
    
    if ( orgArtist.Length() > 0
        && orgArtist.Length() < iMaxTextLength )
        {
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iOriginalArtistPropertyDef, &orgArtist, aIsAdd );
        }
    
    if ( track.Length() > 0 )
        {
        TLex trackLex( track );
        TUint16 trackValue( 0 );
        trackLex.Val( trackValue, EDecimal );
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iTrackPropertyDef, &trackValue, aIsAdd );
        }
    
    if ( duration.Length() > 0 )
        {
        TLex durationLex( duration );
        TReal32 durationValue( 0 );
        const TInt error( durationLex.Val( durationValue, EDecimal ) );
        if( error == KErrNone )
            {
            if ( durationValue < iPropDefs->iDurationPropertyDef->MaxRealValueL() )
                {
                CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
                    *iPropDefs->iDurationPropertyDef, &durationValue, aIsAdd );
                }
            }
        }
    
    if ( copyright.Length() > 0
        && copyright.Length() < iMaxTextLength )
        {
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
        		*iPropDefs->iCopyrightPropertyDef, &copyright, aIsAdd );
        }
    
    if ( date.Length() > 0
        && date.Length() < iPropDefs->iDatePropertyDef->MaxTextLengthL() )
        {
        TTime releaseDate( date );
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
                *iPropDefs->iDatePropertyDef, &releaseDate, aIsAdd );
        }

    if( iHarvestAlbumArt && iTNM && jpeg.Length() > 0 )
        {
        HBufC8* jpegBuf = jpeg.AllocLC();  
        _LIT( KAlbumArtMimeType, "image/jpeg" );
        TBuf<KMimeLength> mimeType;
        mimeType.Copy( KAlbumArtMimeType );
        CThumbnailObjectSource* tnmSource = CThumbnailObjectSource::NewL( jpegBuf, mimeType, uri );
        // Ownership of buffer is transferred to Thumbnail Manager
        CleanupStack::Pop(); // jpegBuf
        iTNM->CreateThumbnails( *tnmSource );
        delete tnmSource;
        TBool thumbnailPresent( ETrue );
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
                          *iPropDefs->iThumbnailPropertyDef, &thumbnailPresent, aIsAdd );
        }
    else if( iHarvestAlbumArt && iTNM )
        {
        TBool thumbnailNotPresent( EFalse );
        CMdeObjectWrapper::HandleObjectPropertyL( mdeObject, 
                          *iPropDefs->iThumbnailPropertyDef, &thumbnailNotPresent, aIsAdd );
        }
    
    iAudioParser->ResetL();
    
#ifdef _DEBUG
    dStop.UniversalTime();
    WRITELOG1( "CHarvesterAudioPlugin::GetMusicPropertiesL start %d us", (TInt)dStop.MicroSecondsFrom(dStart).Int64() );
#endif   
    }

// End of file