// Copyright (c) 2005-2009 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:

// lbsnetsimassitancedataprovider.cpp

// 

//

#include "lbsnetsimassistancedataprovider.h"

#include <lbs/lbsassistancedatabuilderset.h>

#include <lbspositioninfo.h>

#include <lbs/lbslocdatasourcegpsbase.h>

#include "lbsdevloggermacros.h"

/** 

	Standard Symbain OS constructor

*/

CLbsNetSimAssistanceDataProvider* CLbsNetSimAssistanceDataProvider::NewL()

	{

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

		CleanupStack::PushL(self);

		self->ConstructL();

		CleanupStack::Pop();

		return self;

	}

/**

	Standard C++ constructor

*/

CLbsNetSimAssistanceDataProvider::CLbsNetSimAssistanceDataProvider() :

	iObserver(NULL), iAssistanceDataUid(TUid::Uid(0)), iAssistanceModule(NULL), iAssistanceSource(NULL)

	{

	// Set default Quality(64s fix time, 100m accuracy)

	iQuality.SetMaxFixTime(64*1000000);

	iQuality.SetMinHorizontalAccuracy(100);

	iQuality.SetMinVerticalAccuracy(100);

	iReferenceLocation.SetCoordinate(0, 0);

	}

/**

	Standard C++ destructor

*/

CLbsNetSimAssistanceDataProvider::~CLbsNetSimAssistanceDataProvider()

	{

	iAssistanceData.Close();

	delete iAssistanceSource;

	delete iAssistanceModule;

	}

/** 

	Standard Symbian OS second phase constructor

*/

void CLbsNetSimAssistanceDataProvider::ConstructL()

	{

	// Open the assistance data structure

	iAssistanceData.OpenL();

	// Load the default assistance data module to start with

	iAssistanceModule = CAssistanceDataSourceModuleBase::NewL(*this);

	/* Note: The assistance data source is not initialised here, due to issues with LbsRoot starting NetSim Up.

		The initialisation of the Assistance Data Source takes place in SetAssistanceDataProvider() , which

		should always be called before using NetSim.*/

	//iAssistanceSource = iAssistanceModule->NewDataSourceL();

	}

/** 

	Sets the observer to use for callbacks

	@param aObserver 	the observer too use

*/

void CLbsNetSimAssistanceDataProvider::SetObserver(MLbsNetSimAssistanceDataProviderObserver* aObserver)

	{

	iObserver = aObserver;

	}

/**

	Sets the reference location

	@param aReferenceLocation	the reference location

	@leave

*/

void CLbsNetSimAssistanceDataProvider::SetReferenceLocationL(TDesC8& /*aReferenceLocation*/)

	{

	User::Leave(KErrNotSupported);

	}

/**

	Sets the reference location

	@param aReferenceLocation	the reference location

*/

void CLbsNetSimAssistanceDataProvider::SetReferenceLocation(TPosition& aReferenceLocation)

	{

	iReferenceLocation = aReferenceLocation;

	}

/**

*/

void CLbsNetSimAssistanceDataProvider::SetQuality(TLbsNetPosRequestQuality& aQuality)

	{

	iQuality = aQuality;

	}

/**

*/

TBool CLbsNetSimAssistanceDataProvider::SetAssistanceDataProvider(TUid aUid)

	{

	// Always reload the current plugin to make sure it's properly initialised

	// Delete the old plugins if there's any

	if (iAssistanceDataUid != aUid)

		{

 		if (iAssistanceModule != NULL)		

 			{

			delete iAssistanceSource;

			iAssistanceSource = NULL;

			delete iAssistanceModule;

			iAssistanceModule = NULL;

			REComSession::FinalClose();

 			}

		// Set the new plugin Uid

		iAssistanceDataUid = aUid;

		if (iAssistanceModule == NULL)

			{

			if (iAssistanceDataUid.iUid == 0)

				{

				iAssistanceModule = CAssistanceDataSourceModuleBase::NewL(*this); // Loads default

				}

			else

				{

				iAssistanceModule = CAssistanceDataSourceModuleBase::NewL(iAssistanceDataUid, *this); // Loads specified

				}

			// Load the new assistance data source

			iAssistanceSource = iAssistanceModule->NewDataSourceL();

			}

		}

	return ETrue;

	}

/**

	Clears the currently set reference locations

	@param aReferenceLocation	the reference location

*/

void CLbsNetSimAssistanceDataProvider::ClearReferenceLocations()

	{

	}

/**

	Request the assitance data from the assitance data provider

	This method will fill in the supplied RLbsAssitanceDataBuilderSet and calls back MLbsNetSimAssitanceDataProviderObserver::ProcessAssitanceData

	@param aGroup			the assitance data mask

	@param aAssitanceData	the assitance data structure to fill in

	@return 				ETrue if an observer is set, otherwise EFalse

*/

TBool CLbsNetSimAssistanceDataProvider::RequestAssistanceDataL(TLbsAssistanceDataGroup& aGroup)

	{

	LBSLOG(ELogP1, "CLbsNetSimAssistanceDataProvider::RequestAssistanceDataL()");

	ASSERT(iObserver != NULL);

	TBool bSuccess = EFalse;

	// Check we have an observer

	if (iObserver != NULL)

		{

		LBSLOG2(ELogP2, "Requesting assistance data from provider, mask = 0x%x", aGroup);

		iRequestedAssistanceDataGroup = aGroup;

		iAssistanceSource->GetAssistanceData(iAssistanceData, 

											 iRequestedAssistanceDataGroup, 

											 iReferenceLocation);

		}

	return bSuccess;

	}

void CLbsNetSimAssistanceDataProvider::DataSourceNotification(const TInt& aError)

	{

	LBSLOG(ELogP1, "CLbsNetSimAssistanceDataProvider::DataSourceNotification()");

	TPositionInfo positionInfo;

	positionInfo.SetPosition(iReferenceLocation);

	TInt error = aError;

	// Check exactly what assistance data we got, if we didn't

	// get any of the requested items then return an error.

	TLbsAsistanceDataGroup mask;

	CalculateValidAssistanceDataMask(iAssistanceData, mask);

	if ((mask & iRequestedAssistanceDataGroup) == 0

		&& error == KErrNone)

		{

		error = KErrAccessDenied;

		}

#ifdef ENABLE_LBS_DEV_LOGGER

	TRAPD(err, iObserver->ProcessAssistanceDataL(error, iAssistanceData, positionInfo, iQuality));

	if (err != KErrNone)

		{

		LBSLOG2(ELogP3, "LEAVE from iObserver->ProcessAssistanceDataL: %d", err);

		}

#else

	TRAP_IGNORE(iObserver->ProcessAssistanceDataL(error, iAssistanceData, positionInfo, iQuality));

#endif

	}

/** Generate a bitmask of the valid assistance data items for an assistance data builder set.

*/

void CLbsNetSimAssistanceDataProvider::CalculateValidAssistanceDataMask(

		RLbsAssistanceDataBuilderSet& aAssistanceData,

		TLbsAsistanceDataGroup& aGroup)

	{

	RUEPositioningGpsAlmanacBuilder* almanacPtr;

	RUEPositioningGpsIonosphericModelBuilder* ionosphericPtr;

	RUEPositioningGpsNavigationModelBuilder* navigationPtr;

	RUEPositioningGpsReferenceTimeBuilder* referenceTimePtr;

	RUEPositioningGpsUtcModelBuilder*  utcPtr;

	RUEPositioningGpsAcquisitionAssistanceBuilder* acquisitionPtr;

	RBadSatListBuilder* badSatPtr;

	RReferenceLocationBuilder* referenceLocationPtr;

	aGroup = EAssistanceDataNone;

	if (KErrNone == aAssistanceData.GetDataBuilder(almanacPtr))

		{

		if (almanacPtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataAlmanac;

			}

		}

	if (KErrNone == aAssistanceData.GetDataBuilder(acquisitionPtr))

		{

		if (acquisitionPtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataAquisitionAssistance;

			}

		}

	if (KErrNone == aAssistanceData.GetDataBuilder(badSatPtr))

		{

		if (badSatPtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataBadSatList;

			}

		}

	if (KErrNone == aAssistanceData.GetDataBuilder(navigationPtr))

		{

		if (navigationPtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataNavigationModel;

			}

		}

	if (KErrNone == aAssistanceData.GetDataBuilder(referenceTimePtr))

		{

		if (referenceTimePtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataReferenceTime;

			}

		}

	if (KErrNone == aAssistanceData.GetDataBuilder(ionosphericPtr))

		{

		if (ionosphericPtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataIonosphericModel;

			}

		}

	if (KErrNone == aAssistanceData.GetDataBuilder(referenceLocationPtr))

		{

		if (referenceLocationPtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataReferenceLocation;

			}

		}

	if (KErrNone == aAssistanceData.GetDataBuilder(utcPtr))

		{

		if (utcPtr->IsDataAvailable())

			{

			aGroup |= EAssistanceDataPositioningGpsUtcModel;

			}

		}

	}