/*
* 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:
* Plug-in main class
*
*/

#include <liwservicehandler.h>
#include <liwvariant.h>
#include <liwgenericparam.h>
#include "wrtdata.h"
#include "wrtdataobserver.h"
#include "wrtdatapluginconst.h"
// ---------------------------------------------------------------------------
// Constructor
// ---------------------------------------------------------------------------
//
CWrtDataObserver::CWrtDataObserver ()
    {

    }
        
// ---------------------------------------------------------------------------
// Destructor
// ---------------------------------------------------------------------------
//
CWrtDataObserver ::~CWrtDataObserver ()
    {
    TRAP_IGNORE( ReleaseL());
    iInterface = NULL;
    iData = NULL;
    }

// ---------------------------------------------------------------------------
// Register for notifications
// ---------------------------------------------------------------------------
//
void CWrtDataObserver::RegisterL( CLiwDefaultMap* aFilter )
    {
    CLiwGenericParamList* inParamList = CLiwGenericParamList::NewL();
    CleanupStack::PushL( inParamList );
    CLiwGenericParamList* outParamList = CLiwGenericParamList::NewL();
    CleanupStack::PushL( outParamList );
        
    // Fill in input list for RequestNotification command
    inParamList->AppendL(TLiwGenericParam(KType,TLiwVariant(KCpData_PubData)));
    inParamList->AppendL(TLiwGenericParam(KFilter ,TLiwVariant(aFilter)));
        
    iError = KErrNone;
    TRAP( iError, iInterface->ExecuteCmdL( 
                KRequestNotification,
                *inParamList,
                *outParamList,
                0,
                this ) );
    
    CleanupStack::PopAndDestroy( outParamList );
    CleanupStack::PopAndDestroy( inParamList ); 
    }

// ---------------------------------------------------------------------------
// Sing off to notification
// ---------------------------------------------------------------------------
//
void CWrtDataObserver ::ReleaseL()
    {
    if( iInterface )
        {
        CLiwGenericParamList* inParamList = CLiwGenericParamList::NewL();
        CleanupStack::PushL( inParamList );
        CLiwGenericParamList* outParamList = CLiwGenericParamList::NewL();
        CleanupStack::PushL( outParamList );
        
        TInt err(KErrNone);
        TRAP(err, iInterface->ExecuteCmdL( 
                KRequestNotification,
                *inParamList,
                *outParamList,
                KLiwOptCancel,
                this ));
        
        CleanupStack::PopAndDestroy( outParamList );
        CleanupStack::PopAndDestroy( inParamList );
        }
    }

// ---------------------------------------------------------------------------
// Factory method construction
// ---------------------------------------------------------------------------
//
CWrtDataObserver * CWrtDataObserver::NewL( MLiwInterface* aInterface, CWrtData* aData )
    {
    CWrtDataObserver * self = new (ELeave) CWrtDataObserver();
    CleanupStack::PushL( self );
    self->ConstructL( aInterface, aData );
    CleanupStack::Pop( self );
    return self;    
    }
        
// ---------------------------------------------------------------------------
// 2n phase constructor
// ---------------------------------------------------------------------------
//
void CWrtDataObserver::ConstructL( MLiwInterface* aInterface, CWrtData* aData )
    {
    iData = aData;
    iInterface = aInterface;
    }

// ---------------------------------------------------------------------------
// Handles Published content notification
// ---------------------------------------------------------------------------
//
TInt CWrtDataObserver::HandleNotifyL(
        TInt aErrorCode,
        TInt /*aEventId*/,
        CLiwGenericParamList& aEventParamList,
        const CLiwGenericParamList& /*aInParamList*/ )
    {
     
    // Is plugin active to refresh the published data
	iError = aErrorCode;        
	TInt count(0);
	TInt pos(0);
	const TLiwGenericParam* param(NULL);
	CLiwDefaultList* listOfMaps = CLiwDefaultList::NewLC();
	param = aEventParamList.FindFirst(pos,KChangeInfo);
	if( param )
		{
		 User::LeaveIfError( param->Value().Get( *listOfMaps ) );
		 count = listOfMaps->Count();
		}
	TLiwVariant variant;
	// Extract the data from the map 
	for(TInt i = 0;i < count; i++)
		{
		listOfMaps->AtL(i,variant);
		HBufC16* operation = NULL;

		CLiwDefaultMap *map = CLiwDefaultMap::NewLC();
		variant.Get( *map );
		TBool found;
		found = map->FindL( KOperation, variant );
		if (found)
		   {
		   operation = variant.AsDes().AllocLC();
		   }
		variant.Reset();
		if( operation->Des() != KOperationExecute )
		   {
		   // Nothing to update for execute action
		   HBufC16* publisher = NULL; 
		   HBufC16* contentType = NULL;
		   HBufC16* contentId = NULL;
		   found = map->FindL( KFLAG, variant );
		   if ( found)
			   {
			   // notification from publisher registry
			  if ( operation->Des() !=  KOperationDelete )
				  {
				  iData->UpdatePublisherStatusL();
				  }
			   }
		   // ignore update if plugin is in suspend mode
		   else if ( iData->IsPluginActive() ) 
			   { 
			   // notification from content registry
			   found = map->FindL( KPublisherId, variant );
			   if (found)
				   {
				   publisher = variant.AsDes().AllocLC();
				   }
			   variant.Reset();
			   found = map->FindL( KContentType, variant );
			   if (found)
				  {
				  contentType = variant.AsDes().AllocLC();
				  }
			   variant.Reset();
			   found = map->FindL( KContentId, variant );
			   if (found)
				  {
				  contentId = variant.AsDes().AllocLC();
				  }
			   variant.Reset();
			   iData->RefreshL( *publisher, *contentType, *contentId, *operation );
			   
			   if ( contentId )
				   {
				   CleanupStack::PopAndDestroy( contentId );
				   }
			  if ( contentType )
				   {
				   CleanupStack::PopAndDestroy( contentType );
				   }
			  if ( publisher )
				   {
				   CleanupStack::PopAndDestroy( publisher );
				   }
			}
			 variant.Reset();
		   }
		if ( operation )
			{
			CleanupStack::PopAndDestroy( operation );
			}
		CleanupStack::PopAndDestroy( map );
		}
	CleanupStack::PopAndDestroy( listOfMaps );
	
    return aErrorCode;
    }