/*

 * Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB

 *

 * 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:

 * EmbedDev AB - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 */

#ifndef PODCAST_CONNECTIONENGINE_H

#define PODCAST_CONNECTIONENGINE_H

// Connect using mobility extension

#include <in_sock.h>

#include <connpref.h>

#include <commdbconnpref.h>

#include <comms-infras/cs_mobility_apiext.h>

// Using connection manager settings UI

#include <cmapplicationsettingsui.h>

class CPodcastModel;

class MConnectionObserver

	{

public:

	virtual void ConnectionSelectionStart() = 0;

	virtual void ConnectionSelectionEnd() = 0;

	virtual void ConnectCompleteL(TInt aErrorCode) = 0;

	virtual void Disconnected() = 0;

	};

/**

 * This class helps to connect using three available methods

 * SNAP, Mobility extension and Connection manager UI

 */

class CConnectionEngine:public CActive, public MMobilityProtocolResp

	{

public:

	enum TConnectionType

		{

		EUserSelectConnection,		

		ESNAPConnection,		

		EMobilityConnection,

		EDefaultConnection,

		EIAPConnection

		};

	enum TConnectionState

		{

		ENotConnected,

		EConnecting,

		EConnected

		};

	static CConnectionEngine* NewL(CPodcastModel& aPodcastModel);

	~CConnectionEngine();

	void StartL(TConnectionType aConnectionType);

	RConnection& Connection();

	TConnectionState ConnectionState();

	IMPORT_C void AddObserver(MConnectionObserver* aObserver);

	RSocketServ& SockServ();

	void Stop();

private: // Methods

	CConnectionEngine(CPodcastModel& aPodcastModel);

	void ConstructL();

protected:

	// From CActive

	void RunL();

	void DoCancel();

	TInt RunError( TInt aError );

protected:

	// From MMobilityProtocolResp

	void PreferredCarrierAvailable( TAccessPointInfo aOldAPInfo,

			TAccessPointInfo aNewAPInfo,

			TBool aIsUpgrade,

			TBool aIsSeamless );

	void NewCarrierActive( TAccessPointInfo aNewAPInfo, TBool aIsSeamless );

	void Error( TInt aError );

protected:

	// UI Setting

	TBool ConnectionSettingL();

	void ReportConnectionL(TInt aError);

	void ReportConnectionSelectionStart();

	void ReportConnectionSelectionEnd();

private:

	RConnection                   iConnection;

	RSocketServ                   iSocketServer;

	// Connect using mobility extension

	CActiveCommsMobilityApiExt*   iMobility;

	// Using connection manager settings UI

	TCmSettingSelection   iUserSelection;

	// Connect using Commdb

	TCommDbConnPref iCommdbPreference;

	// Connect using SNAP setting

	TConnSnapPref iSnapPreference;

	TConnectionType iConnectionType;

	TConnectionState iConnectionState;

	RPointerArray<MConnectionObserver> iObserverArray;

	CPodcastModel &iPodcastModel; 	// reference to the model

	};

#endif // PODCAST_CONNECTIONENGINE_H