/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* 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:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Albums related collection functionality (except db operations).

*

*/

// INCLUDE FILES

#include <e32base.h>

#include <mpxlog.h>

#include <mpxmediacontainerdefs.h>

#include <mpxcollectionpluginobserver.h>

#include <mpxmediageneraldefs.h>

#include "vcxmyvideosalbums.h"

#include "vcxmyvideoscollectionutil.h"

#include "vcxmyvideoscollectionplugin.h"

#include "vcxmyvideosmdsdb.h"

#include "vcxmyvideosmdsalbums.h"

#include "vcxmyvideoscollectionutil.h"

#include "vcxmyvideosmessagelist.h"

#include "vcxmyvideosopenhandler.h"

// ============================ MEMBER FUNCTIONS =============================

// ---------------------------------------------------------------------------

// Constructor

// ---------------------------------------------------------------------------

//

CVcxMyVideosAlbums::CVcxMyVideosAlbums( CVcxMyVideosCollectionPlugin& aCollection )

: iCollection( aCollection )

    {

    }

// ---------------------------------------------------------------------------

// 2nd-phase constructor

// ---------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::ConstructL()

    {

    iAlbums.Reset();

    iChangedAlbums.Reset();

    }

// ---------------------------------------------------------------------------

// Two-Phase Constructor

// ---------------------------------------------------------------------------

//

CVcxMyVideosAlbums* CVcxMyVideosAlbums::NewL( CVcxMyVideosCollectionPlugin& aCollection )

    {

    CVcxMyVideosAlbums* self = new(ELeave) CVcxMyVideosAlbums( aCollection );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

CVcxMyVideosAlbums::~CVcxMyVideosAlbums()

    {

    delete iAlbumList;

    TInt count = iAlbums.Count();

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

        {

        delete iAlbums[i];

        }

    iAlbums.Close();

    iMdsOpTargetIds.Close();

    iMdsOpResults.Close();

    iMdsOpResultsUint32.Close();

    iRemoveFromAlbumVideos.Close();

    iChangedAlbums.Close();

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::CreateAlbumListL

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::CreateAlbumListL()

    {

    if ( iAlbumList )

        {

        return;

        }

    iAlbumList = TVcxMyVideosCollectionUtil::CreateEmptyMediaListL();

    iCollection.iMyVideosMdsDb->iAlbums->GetAlbumsL( iAlbumList, *this );

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::CreateAlbumsL

// Called when iAlbumList is ready, fills iAlbums.

// Pointers to CVcxMyVideosVideoCache::iVideoList are not filled in yet.

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::CreateAlbumsL()

    {

    CMPXMediaArray* albumArray = iAlbumList->Value<CMPXMediaArray>( KMPXMediaArrayContents );

    TInt count = albumArray->Count();

    CVcxMyVideosAlbum* album;

    CMPXMedia* media;

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

        {

        media = albumArray->AtL( i );

        album = CVcxMyVideosAlbum::NewLC( iCollection );

        album->iMdsId = TVcxMyVideosCollectionUtil::IdL( *media ).iId1;

        album->iMedia = media;

        iAlbums.AppendL( album );

        CleanupStack::Pop( album );

        }

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::GetAlbumContentIdsL

// Fetches MDS IDs for all albums.

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::GetAlbumContentIdsL()

    {

    TInt count = iAlbums.Count();

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

        {

        // These calls go to queue and responses arrive asynchronously

        // to HandleGetAlbumContentIdsRespL.

        iCollection.iMyVideosMdsDb->iAlbums->GetAlbumContentIdsL( iAlbums[i]->iMdsId,

                iAlbums[i]->iVideoList, *this );

        }

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::Album

// ----------------------------------------------------------------------------

//

CVcxMyVideosAlbum* CVcxMyVideosAlbums::Album( TUint32 aMdsId, TInt* aPos )

    {

    TInt count = iAlbums.Count();

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

        {

        if ( iAlbums[i]->iMdsId == aMdsId )

            {

            if ( aPos )

                {

                *aPos = i;

                }

            return iAlbums[i];

            }

        }

    return NULL;

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::AddVideosToAlbumL

// Command from MPX client.

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::AddVideosToAlbumL( CMPXMedia* aCmd )

    {    

    TInt albumId = TVcxMyVideosCollectionUtil::Uint32ValueL( *aCmd );

    CVcxMyVideosAlbum* album = Album( albumId );

    if ( album )

        {

        CMPXMediaArray* mediaArray = TVcxMyVideosCollectionUtil::MediaArrayL( *aCmd );

        TInt count = mediaArray->Count();

        CMPXMedia* video;

        TInt mdsId;

        RArray<TUint32> uniqueVideoIds;

        uniqueVideoIds.Reset();

        CleanupClosePushL( uniqueVideoIds );

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

            {

            video = mediaArray->AtL( i );

            mdsId = TVcxMyVideosCollectionUtil::IdL( *video ).iId1;

            // Mark duplicates as failed to aCmd (KErrAlreadyExists)

            if ( uniqueVideoIds.Find( mdsId ) == KErrNotFound )

                {

                uniqueVideoIds.AppendL( mdsId );

                // Mark videos which are already in album as failed to aCmd (KErrAlreadyExists)

                if ( album->BelongsToAlbum( mdsId ) )

                    {

                    MPX_DEBUG3("CVcxMyVideosAlbums:: %d already belongs to %d album",

                            mdsId, albumId );

                    video->SetTObjectValueL<TInt32>( KVcxMediaMyVideosInt32Value, KErrAlreadyExists );

                    }

                else

                    {

                    video->SetTObjectValueL<TInt32>( KVcxMediaMyVideosInt32Value, KErrNone );

                    }

                }

            else

                {

                MPX_DEBUG2("CVcxMyVideosAlbums:: %d already present in the aCmd, marking as KErrAlreadyExists", mdsId);

                video->SetTObjectValueL<TInt32>( KVcxMediaMyVideosInt32Value, KErrAlreadyExists );

                }

            }

        CleanupStack::PopAndDestroy( &uniqueVideoIds );

        }

    iCollection.iMyVideosMdsDb->iAlbums->AddVideosToAlbumL( aCmd, *this );

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::RemoveVideosFromAlbumL

// Converts video mpx ids to relation ids and calls RemoveRelationsL.

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::RemoveVideosFromAlbumL( CMPXMedia* aCmd )

    {

    TInt albumId = TVcxMyVideosCollectionUtil::Uint32ValueL( *aCmd );

    CMPXMediaArray* array = TVcxMyVideosCollectionUtil::MediaArrayL( *aCmd );

    TVcxMyVideosAlbumVideo video;

    TInt index;

    TInt error;

    CMPXMedia* media;

    TInt count = array->Count();

    iMdsOpTargetIds.Reset();

    iMdsOpTargetIds.Reserve( count );

    iRemoveFromAlbumVideos.Reset();

    iRemoveFromAlbumVideos.Reserve( count );

    TVcxMyVideosAlbumVideo paddingVideo;

    paddingVideo.iMdsId         = 0;

    paddingVideo.iRelationMdsId = 0;

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

        {

        media = array->AtL( i );

        error = Album( albumId )->Video(

                TVcxMyVideosCollectionUtil::IdL( *media ).iId1, video, index );

        if ( error == KErrNone )

            {

            iRemoveFromAlbumVideos.AppendL( video ); //store album video data now to avoid second search when response arrives

            iMdsOpTargetIds.AppendL( video.iRelationMdsId );

            }

        else

            {

            iRemoveFromAlbumVideos.AppendL( paddingVideo ); //add dummy video to keep media array and iRemoveFromAlbumVideos in sync

            }

        }

    iMdsOpResultsUint32.Reset();

    iCollection.iMyVideosMdsDb->iAlbums->RemoveRelationsL(

            iMdsOpTargetIds, iMdsOpResultsUint32, *this );

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::AddAlbumL

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::AddAlbumL( CMPXMedia& aCmd )

    {

    if ( TVcxMyVideosCollectionUtil::Title( aCmd ).Length() > 255 )

        {

        User::Leave( KErrArgument );

        }

    iCollection.iMyVideosMdsDb->iAlbums->AddAlbumL( aCmd );

    TUint32 mdsId = TVcxMyVideosCollectionUtil::IdL( aCmd ).iId1;

    if ( !Album( mdsId ) )

        {

        CMPXMediaArray* albumArray = iAlbumList->Value<CMPXMediaArray>( KMPXMediaArrayContents );

        albumArray->AppendL( aCmd );

        CVcxMyVideosAlbum* album = CVcxMyVideosAlbum::NewLC( iCollection );

        album->iMdsId = mdsId;

        album->iMedia = albumArray->AtL( albumArray->Count() - 1 );

        iAlbums.AppendL( album );

        CleanupStack::Pop( album );

        iCollection.iMessageList->AddEventL( TMPXItemId( mdsId, KVcxMvcMediaTypeAlbum ),

                EMPXItemInserted, EVcxMyVideosListNoInfo, album->iMedia );

        iCollection.iMessageList->SendL();

        }

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::RemoveAlbumsFromMdsOnlyL

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::RemoveAlbumsFromMdsOnlyL( CMPXMedia* aCmd )

    {

    iCollection.iMyVideosMdsDb->iAlbums->RemoveAlbumsL( aCmd, *this );

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::RemoveAlbumsL

// From MDS delete event.

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::RemoveAlbumsL( RArray<TUint32>& aAlbumIds )

    {

    TInt count = aAlbumIds.Count();

    for ( TInt i = count -1; i >= 0; i-- )

        {

        TBool removed = RemoveAlbumL( aAlbumIds[i], EFalse /* dont compress */);

        if ( removed )

            {

            aAlbumIds.Remove( i );

            }

        }

    iAlbums.Compress();

    iCollection.iMessageList->SendL();        

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::RemoveAlbumL

// ----------------------------------------------------------------------------

//

TBool CVcxMyVideosAlbums::RemoveAlbumL( TUint32 aMdsId, TBool aCompress )

    {

    TInt pos;

    CVcxMyVideosAlbum* album = Album( aMdsId, &pos );

    if ( album )

        {

        CMPXMediaArray* albumArray = TVcxMyVideosCollectionUtil::MediaArrayL( *iAlbumList );

        iAlbums.Remove( pos );

        albumArray->Remove( pos );

        MPX_DEBUG2("CVcxMyVideosAlbums:: removing album from pos %d", pos);

        if ( aCompress )

            {

            iAlbums.Compress();

            }

        iCollection.iMessageList->AddEventL( TMPXItemId( aMdsId, KVcxMvcMediaTypeAlbum ),

                EMPXItemDeleted, EVcxMyVideosListNoInfo );

        return ETrue;

        }

    return EFalse;

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::CalculateAttributesL

// ----------------------------------------------------------------------------

//

    {

    TInt count = iAlbums.Count();

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

        {

        }

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::AddAlbumsFromMdsL

// From MDS insert event, no need to fetch content since the album was just

// created.

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::AddAlbumsFromMdsL( RArray<TUint32>& /*aAlbumIds*/ )

    {

    //TODO: implement if we want to support albums which are added by someone else

    //      than My Videos Collection.

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::HandleGetAlbumsRespL

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::HandleGetAlbumsRespL( CMPXMedia* aAlbumList )

    {

    // aAlbumList = iAlbumList

    CMPXMediaArray* array = aAlbumList->Value<CMPXMediaArray>( KMPXMediaArrayContents );

    TInt count = array->Count();

    TMPXItemId mpxId;

    CMPXMedia* album;

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

        {

        album = array->AtL( i );

        mpxId = TVcxMyVideosCollectionUtil::IdL( *album );

        iCollection.iMessageList->AddEventL( mpxId, EMPXItemInserted, 0, album );

        }

    CreateAlbumsL(); //fills in iAlbums from iAlbumList

    GetAlbumContentIdsL(); //fills iAlbums with MDS IDs of the videos asynchronously

    iCollection.iMessageList->SendL();

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::HandleGetAlbumContentIdsRespL

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::HandleGetAlbumContentIdsRespL( TUint32 aAlbumId,

        RArray<TVcxMyVideosAlbumVideo>& /*aAlbumContentIds*/ )

    {    

    //&aAlbumContent = iAlbums[x]->iVideoList

    CVcxMyVideosAlbum* album( Album( aAlbumId ) ); 

    if ( album )

        {

        album->Sort(); //sorts iAlbum[x]->iVideoList by MDS ID.

        }

    //if last album -> album list is complete

    if ( iAlbums[iAlbums.Count() -1]->iMdsId == aAlbumId )

        {

        MPX_DEBUG1("CVcxMyVideosAlbums:: content ids for last album arrived -> album list is complete" );

        iAlbumListIsComplete = ETrue;

        if ( iCollection.iOpenHandler->iPendingAlbumOpenId )

            {

            MPX_DEBUG1("CVcxMyVideosAlbums:: there was album open pending, calling HandleAlbumOpenL()" );

            TRAPD( err, iCollection.iOpenHandler->HandleAlbumOpenL() );

            if ( err != KErrNone )

                {

                MPX_DEBUG3("CVcxMyVideosAlbums:: HandleAlbumOpenL() left: %d, calling HandleOpen(NULL,%d)",

                        err, err);

                iCollection.iObs->HandleOpen( static_cast<CMPXMedia*>(NULL), err );

                }

            }

        }

#ifdef _DEBUG

    if ( album )

        {

        TInt count = album->iVideoList.Count();

        MPX_DEBUG2("CVcxMyVideosCollectionPlugin:: content ids for album %d arrived", aAlbumId);

        for ( TInt i = 0; i < album->iVideoList.Count(); i++ )

            {

            MPX_DEBUG2("CVcxMyVideosCollectionPlugin:: mds id = %d", album->iVideoList[i].iMdsId );

            }

        }

#endif

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::HandleGetAlbumsResp

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::HandleGetAlbumsResp( CMPXMedia* aAlbumList )

    {

    TRAP_IGNORE( HandleGetAlbumsRespL( aAlbumList ) );

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::HandleGetAlbumContentIdsResp

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::HandleGetAlbumContentIdsResp( TUint32 aAlbumId,

        RArray<TVcxMyVideosAlbumVideo>& aAlbumContent )

    {

    TRAP_IGNORE( HandleGetAlbumContentIdsRespL( aAlbumId, aAlbumContent ) );    

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::HandleAddVideosToAlbumResp

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::HandleAddVideosToAlbumResp( CMPXMedia* aCmd,

        RPointerArray<CMdEInstanceItem>& aItemArray )

    {    

    TRAPD( err, DoHandleAddVideosToAlbumRespL( aCmd, aItemArray ) );

    if ( err != KErrNone )

        {

        CMPXMedia* cmd = iCollection.iActiveTask->Command(); 

        if ( cmd )

            {

            cmd->SetTObjectValueL<TInt>( KVcxMediaMyVideosInt32Value, err );

            iCollection.iActiveTask->Done();

            }

        }

    }

// ----------------------------------------------------------------------------

// CVcxMyVideosAlbums::DoHandleAddVideosToAlbumResp

// ----------------------------------------------------------------------------

//

void CVcxMyVideosAlbums::DoHandleAddVideosToAlbumRespL( CMPXMedia* aCmd,

        RPointerArray<CMdEInstanceItem>& aItemArray )

    {

    MPX_DEBUG1("CVcxMyVideosAlbums::DoHandleAddVideosToAlbumResp() start");

    TUint32 albumId = TVcxMyVideosCollectionUtil::Uint32ValueL( *aCmd );

    CVcxMyVideosAlbum* album = Album( albumId );

    CMPXMediaArray* mediaArray = TVcxMyVideosCollectionUtil::MediaArrayL( *aCmd );

    TVcxMyVideosAlbumVideo video;

    RArray<CVcxMyVideosAlbum*> modifiedAlbums;

    modifiedAlbums.Reset();

    CleanupClosePushL( modifiedAlbums );

    TInt mediaArrayCount  = mediaArray->Count();

    TInt resultArrayCount = aItemArray.Count();

    CMPXMedia* media;

    TInt j = 0;

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

        {

        if ( j > resultArrayCount - 1 )

            {

            MPX_DEBUG1("CVcxMyVideosAlbums:: result array already at end, skipping the rest");

            break; //break from for loop

            }