/**

 * Copyright (c) 2010 Sasken Communication Technologies Ltd.

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the "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:

 * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution

 *

 * Contributors:

 * Manasij Roy, Nalina Hariharan

 * 

 * Description:

 * The Transport Manager class initializes the transport component of Smf 

 * framework

 * Note: This class has dependencies on QtMobility project

 *

 */

// Include files

#include "smftransportmanager.h"

#include "smftransportmanagerutil.h"

// Static data initialisation

SmfTransportManager* SmfTransportManager::m_myInstance = NULL;

/**

 * Method to get the instance of SmfTransportManager class

 * @return The instance of SmfTransportManager class

 */

SmfTransportManager* SmfTransportManager::getInstance ( )

	{

	if(NULL == m_myInstance)

		m_myInstance = new SmfTransportManager( );

	return m_myInstance;

	}

/**

 * Constructor with default argument

 * @param aParent The parent object

 */

SmfTransportManager::SmfTransportManager ( )

		: m_netwConfigMngr(this), m_systemInfo(this)

	{

	// Register for monitoring changes in IAPs (network configurations)

	connect(&m_netwConfigMngr, SIGNAL(configurationAdded(const QNetworkConfiguration &)), 

			this, SLOT(configurationAdded(const QNetworkConfiguration &)));

	connect(&m_netwConfigMngr, SIGNAL(configurationChanged(const QNetworkConfiguration &)), 

			this, SLOT(configurationChanged(const QNetworkConfiguration &)));

	connect(&m_netwConfigMngr, SIGNAL(configurationRemoved(const QNetworkConfiguration &)), 

			this, SLOT(configurationRemoved(const QNetworkConfiguration &)));

	}

/**

 * Destructor

 */

SmfTransportManager::~SmfTransportManager ( )

	{

	if(m_myInstance)

		delete m_myInstance;

	}

/**

 * Method to initialize the transport component before 

 * executing a web query

 * @return SmfTransportInitializeResult

 * @see smfglobal.h

 */

SmfTransportInitializeResult SmfTransportManager::initializeTransport ( )

	{

	SmfTransportInitializeResult retVal = SmfTransportInitNetworkNotAvailable;

	if(getNetworkAvailabilty())

		{

		retVal = SmfTransportInitNoError;

		SmfNetworkStatus status;

		getCurrentNetworkStatus(status);

		switch(status)

			{

			// homenetwork

			case SmfNetworkConnectedHome:

			case SmfNetworkConnected:

				break;

			// roaming

			case SmfNetworkConnectedRoaming:

///////////// check with CSM for usage while roaming

//// if enabled do nothing(i.e, retVal will be SmfTransportInitNoError)

//// else retVal = SmfTransportInitRoamingNetworkUsageNotEnabled;

/*				if(!iSmfServer->getNetworkUsageWhileRoamingSetting())

					retVal = SmfTransportInitRoamingNetworkUsageNotEnabled;*/

				break;

			// unknown state

			case SmfNetworkStateNotKnown:

			// network not available

			case SmfNetworkNotConnected:

			default :

				retVal = SmfTransportInitNetworkNotAvailable;

			}

		}

	return retVal;

	}

/* Method to get network availability.

 * @return True if online, else false.

 */

bool SmfTransportManager::getNetworkAvailabilty ( )

	{

	return m_netwConfigMngr.isOnline();

	}

/*

 * Method that checks if the phone is in home network or in roaming.

 * @param aStatus [out] An output parameter indicating the current network 

 * status as SmfNetworkStatus

 * @see smfglobal.h

 */

void SmfTransportManager::getCurrentNetworkStatus ( 

		SmfNetworkStatus &aStatus )

	{

	QSystemNetworkInfo::NetworkStatus status = m_systemInfo.networkStatus ( QSystemNetworkInfo::GsmMode );

	switch(status)

		{

		// homenetwork

		case QSystemNetworkInfo::HomeNetwork:

			aStatus = SmfNetworkConnectedHome;

			break;

		// connected

		case QSystemNetworkInfo::Connected:

			aStatus = SmfNetworkConnected;

			break;

		// roaming	

		case QSystemNetworkInfo::Roaming:

			aStatus = SmfNetworkConnectedRoaming;

			break;

		// unknown state			

		case QSystemNetworkInfo::Searching:

		case QSystemNetworkInfo::Busy:

			aStatus = SmfNetworkStateNotKnown;

			break;

		// network not available

		case QSystemNetworkInfo::UndefinedStatus:

		case QSystemNetworkInfo::NoNetworkAvailable:

		case QSystemNetworkInfo::EmergencyOnly:

		case QSystemNetworkInfo::Denied:

		default :

			aStatus = SmfNetworkNotConnected;

		}

	}

/**

 * This slot is called whenever a new network configuration is added to the system.

 * @param aConfig The new configuration

 */

void SmfTransportManager::configurationAdded ( 

		const QNetworkConfiguration &aConfig )

	{

	SmfTransportManagerUtil::getInstance()->configurationAdded(SmfTransportOpIAPChanged);

	}

/**

 * This slot is called when the state of the aConfig changes.

 * @param aConfig The changed configuration

 */

void SmfTransportManager::configurationChanged ( 

		const QNetworkConfiguration &aConfig )

	{

	if( aConfig == m_netwConfigMngr.defaultConfiguration() )

		SmfTransportManagerUtil::getInstance()->configurationChanged(SmfTransportOpIAPChanged);

	}

/**

 * This slot is called when a configuration is about to be removed from the system.

 * The removed configuration is invalid but retains name and identifier.

 * @param aConfig The to be removed configuration

 */

void SmfTransportManager::configurationRemoved ( 

		const QNetworkConfiguration &aConfig )

	{

	if( aConfig == m_netwConfigMngr.defaultConfiguration() )

		SmfTransportManagerUtil::getInstance()->configurationRemoved(SmfTransportOpIAPChanged);

	}