/*

* 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:  Remap location data to location objects*

*/

#include "locationremappingao.h"

#include "mdequery.h"

#include "mdccommon.h"

#include "mdeconstants.h"

#include "mdenamespacedef.h"

#include "mdeobjectdef.h" 

#include "mdeobjectquery.h"

using namespace MdeConstants;

CLocationRemappingAO* CLocationRemappingAO::NewL()

	{

	LOG( "CLocationRemappingAO::NewL" ); // DEBUG INFO

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

	CleanupStack::PushL( self );

	self->ConstructL();

	CleanupStack::Pop( self );

	return self;

	}

void CLocationRemappingAO::ConstructL()

	{

	LOG( "CLocationRemappingAO::ConstructL" ); // DEBUG INFO

	CActiveScheduler::Add( this );

	iMdEClient = NULL;

	TRAPD(err, ReadTimeFromCenRepL());

	if (err)

		{

		LOG( "CLocationRemappingAO::ConstructL, Can not read timelimit value from CenRep");

		iTimeLimit = TTimeIntervalSeconds( KRemappingTime );

		}

	}

CLocationRemappingAO::~CLocationRemappingAO()

	{

	LOG( "CLocationRemappingAO::~CLocationRemappingAO" ); // DEBUG INFO

	StopRemapping();

	Cancel();

	iObjects.ResetAndDestroy();

	}

CLocationRemappingAO::CLocationRemappingAO() : CActive( CActive::EPriorityStandard ),

	iState ( EIdle ),

	iContinue( EFalse ),

	iTimed( EFalse ),

	iRequested( EFalse ),

	iStartTime( 0 ),

	iEndTime( 0 ),

	iTimeLimit( 0 )

	{

	// No implementation required

	}

void CLocationRemappingAO::InitialiseL(CMdESession* aMdEClient)

	{

	LOG( "CLocationRemappingAO::Initialise start" ); // DEBUG INFO

	iMdEClient = aMdEClient;

	// namespace defaults

	iNamespaceDef = &iMdEClient->GetDefaultNamespaceDefL();

	// media object definitions

    iObjImageDef = &iNamespaceDef->GetObjectDefL( Image::KImageObject );

    iObjVideoDef = &iNamespaceDef->GetObjectDefL( Video::KVideoObject );

    iPropDateDef = &iObjImageDef->GetPropertyDefL( Object::KCreationDateProperty );

    iPropModifiedDef = &iObjImageDef->GetPropertyDefL( Object::KLastModifiedDateProperty );

    // location object definitions

	iObjLocationDef = &iNamespaceDef->GetObjectDefL( Location::KLocationObject );

	iPropLatDef = &iObjLocationDef->GetPropertyDefL( Location::KLatitudeProperty );

    iPropLongDef = &iObjLocationDef->GetPropertyDefL( Location::KLongitudeProperty );

	iPropAltDef = &iObjLocationDef->GetPropertyDefL( Location::KAltitudeProperty );

	iContainsLocationRelDef = &iNamespaceDef->GetRelationDefL( Relations::KContainsLocation );

	LOG( "CLocationRemappingAO::Initialise end" );

	}

void CLocationRemappingAO::Append( TRemapItem aItem )

	{

	iRemapItems.Append( aItem );

	}

void CLocationRemappingAO::ResetQueue()

	{

	iRemapItems.Reset();

	}

TBool CLocationRemappingAO::ItemsInQueue()

	{

	return iRemapItems.Count() > 0;

	}

TBool CLocationRemappingAO::CheckQueue()

	{

	LOG( "CLocationRemappingAO::CheckQueue - start" );

	TBool create( EFalse );

	TInt index = iRemapItems.Count() - 1;

	TTime startTime( 0 );

	startTime.UniversalTime();

	startTime = startTime - iTimeLimit;

	RArray<TItemId> removeLocations; 

	for( TInt i = index; i >= 0; i-- )

		{

		if( iRemapItems[i].iLocationId == 0 )

			{

			create = ETrue;

			}

		if( iRemapItems[i].iTime < startTime )

			{

			LOG( "CLocationRemappingAO::CheckQueue - old item found" );

			if ( iRemapItems[i].iLocationId != 0 )

				{

				// save old location id 

				TInt err = removeLocations.Find( iRemapItems[i].iLocationId );

				if ( err == KErrNotFound )

					{

					removeLocations.Append( iRemapItems[i].iLocationId );

					}

				}

			iRemapItems.Remove( i );

			create = ETrue;

			}

		}

	// clear all "old" location id's from remap items

	if( removeLocations.Count() < 0 )

		{

		for( TInt i = iRemapItems.Count() - 1; i >=0; i-- )

			{

			TInt err = removeLocations.Find( iRemapItems[i].iLocationId );

			if ( err != KErrNotFound )

				{

				LOG( "CLocationRemappingAO::CheckQueue - old item found" );

				iRemapItems[i].iLocationId = 0;

				}

			}

		}

	removeLocations.Close();

	LOG( "CLocationRemappingAO::CheckQueue - end" );

	return create;

	}

void CLocationRemappingAO::StopRemapping()

	{

	LOG( "CLocationRemappingAO::StopRemapping" ); // DEBUG INFO

	NextState(EIdle);

	}

void CLocationRemappingAO::StartRemappingObjects( const TLocationData& aLocationData )

	{

	iLocationData = aLocationData;

	LOG( "CLocationRemappingAO::StartRemappingObjects" ); // DEBUG INFO

	TInt count = iRemapItems.Count();

	if ( count == 0 )

		{

		LOG("CLocationRemappingAO::StartRemappingObjects No need to remap location objects");

		return;

		}

	NextState( ERemapObjects );

	}

void CLocationRemappingAO::NextState(TMappingState aState)

	{

	LOG1( "CLocationRemappingAO::NextState - state: %d", aState ); // DEBUG INFO

	iState = aState;

	// Request complete if not idling

	if (iState != EIdle)

		{

		TRequestStatus* pStatus = &iStatus;

		User::RequestComplete( pStatus, KErrNone );

		SetActive();

		}	

	}

void CLocationRemappingAO::DoCancel()

	{

	LOG( "CLocationRemappingAO::DoCancel" ); // DEBUG INFO

	// back to idle

	NextState(EIdle);

	}

TInt CLocationRemappingAO::RunError( TInt aError )

	{

	if (aError != KErrNone)

		{

		LOG1( "CLocationRemappingAO::RunError with error code: %d", aError ); // DEBUG INFO

		}

	// back to idle

	NextState(EIdle);

	return KErrNone;

	}

void CLocationRemappingAO::RunL()

	{

	LOG1( "CCameraTrailMonitorAO::RunL iStatus: %d", iStatus.Int() ); // DEBUG INFO

	switch(iState)

		{

		case EIdle:			

			{

			LOG( "CLocationRemappingAO::RunL() - EIdle" );			

			break;

			}

		case ERemapObjects:

			{

			// start remapping object data if Location Object request succeed

			RemapObjectsL();

			NextState(ECommitObjects);

			break;			

			}

		case ECommitObjects:

			{

			// commit location object data

			CommitObjectsL();

			NextState( EIdle );

			break;

			}

		default:		

			{

			User::Leave( KErrUnknown );		

			break;

			}

		}

	}

void CLocationRemappingAO::RemapObjectsL()

	{	

	LOG( "CLocationRemappingAO::RemapObjects - start" ); // DEBUG INFO

	// remap location data to location objects

	TInt count = iRemapItems.Count();

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

		{

		TInt err = iObjectIds.Find( iRemapItems[i].iLocationId );

		if ( err == KErrNotFound )

			{

			iObjectIds.Append( iRemapItems[i].iLocationId );

			}

		}

	count = iObjectIds.Count();

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

		{

		CMdEObject* location = iMdEClient->OpenObjectL(iObjectIds[i], *iObjLocationDef);

		}

	count = iRemapItems.Count();

	LOG1("CLocationRemappingAO::RemapObjectsL - updating relations, count:%d", count);

	// update relation timestamp, composer will then update exif data

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

		{

		CMdERelation* relation = NULL;

		relation = iMdEClient->GetRelationL( iRemapItems[i].iRelationId );

		}

	LOG("CLocationRemappingAO::RemapObjectsL - relations updated");

	iObjectIds.Reset();

	ResetQueue();

	LOG( "CLocationRemappingAO::RemapObjects - end" );

	}

void CLocationRemappingAO::CommitObjectsL()

	{

	LOG( "CLocationRemappingAO::CommitObjects" ); // DEBUG INFO

	// commit location objects

	if( iObjects.Count() > 0 )

		{

		iMdEClient->CommitObjectsL(iObjects);

		iObjects.ResetAndDestroy();

		}	

	}

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

// CLocationManagerServer::ReadCenRepValueL

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

//

void CLocationRemappingAO::ReadTimeFromCenRepL()

	{

	LOG( "CLocationRemappingAO::ReadTimeFromCenRepL(), begin" );

	CRepository* repository = CRepository::NewLC( KRepositoryUid ); 

	TInt value( 0 );

	User::LeaveIfError( repository->Get(KRemappingTimeKey, value) );

	CleanupStack::PopAndDestroy(repository);

	LOG1( "CLocationRemappingAO::ReadTimeFromCenRepL(), Using timelimit value:%d seconds", value );

	iTimeLimit = TTimeIntervalSeconds( value );

    LOG( "CLocationRemappingAO::ReadTimeFromCenRepL(), end" );   

	}

void CLocationRemappingAO::UpdateRelationsL( TItemId aLocationId )

	{ 

	LOG("CLocationRemappingAO::UpdateRelationsL - start");

	CMdENamespaceDef& namespaceDef = iMdEClient->GetDefaultNamespaceDefL();

	// "contains" relation definition

	CMdERelationDef& containsRelDef = namespaceDef.GetRelationDefL( 

			Relations::KContainsLocation );

	TInt count = iRemapItems.Count() - 1;

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

		{

		if( iRemapItems[i].iLocationId == 0 )

			{

			if( iRemapItems[i].iRelationId == 0 )

				{

				CMdERelation* relationObject = iMdEClient->NewRelationLC( containsRelDef,

						iRemapItems[i].iObjectId, aLocationId, 0 );

				iMdEClient->AddRelationL( *relationObject );

				CleanupStack::PopAndDestroy( relationObject );

				LOG("CLocationRemappingAO::UpdateRelationsL - new relation created");

				}

			else

				{

				CMdERelation* relationObject = iMdEClient->GetRelationL( iRemapItems[i].iRelationId );

				relationObject->SetRightObjectIdL( aLocationId );

				iMdEClient->UpdateRelationL( *relationObject );

				LOG("CLocationRemappingAO::UpdateRelationsL - old relation updated");

				}

			iRemapItems.Remove( i );

			}

		}

	LOG("CLocationRemappingAO::UpdateRelationsL - end");

	}

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

// TRemapItem constructor

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

//

TRemapItem::TRemapItem() :

	iObjectId( 0 ),

	iLocationId( 0 ),

	iRelationId( 0 ),

	iTime( 0 )

	{

	}