/*

* Copyright (c) 2005 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:   

*

*/

#ifndef CMCENATPLUGINMANAGER_H

#define CMCENATPLUGINMANAGER_H

#include "nspplugin.h"

#include "mcesrv.h"

#include <e32base.h>

class CSdpDocument;

class MNSPSessionObserver;

/**

*  MCE NAT Plugin manager.

*

*  @lib 

*  @since S60 3.2

*/

class CMceNatPluginManager: public CBase

	{

public: // Constructors and destructor

	/**

	* Two-phased constructor.

	*/

	static CMceNatPluginManager* NewL();

	/**

	* Destructor.

	*/

    ~CMceNatPluginManager();

private: // Constructors and destructor    

    CMceNatPluginManager();

    void ConstructL();

public: // New functions

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

	TInt NewSessionL( MNSPSessionObserver& aNatSessionObserver,

	                  TUint32 aIapId,

	                  const TDesC8& aDomain );

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

	void CloseSessionL( TUint aSessionId );

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

    TNatReturnStatus CreateOfferL( TUint aSessionId, CSdpDocument*& aOffer );

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

    TNatReturnStatus ResolveL( TUint aSessionId,

                               CSdpDocument*& aOffer,

                               CSdpDocument*& aAnswer );

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

    TNatReturnStatus DecodeAnswerL( TUint aSessionId, CSdpDocument*& aAnswer );

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

    void UpdateL( TUint aSessionId, CSdpDocument*& aOffer );

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

    TNatReturnStatus RestartL( TUint aSessionId );

    /**

     * Method checks if NAT plugin is present.

     *

     * @return ETrue if Nat plugin was present, EFalse otherwise.

     */

    TBool NatEnabledL();

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

    TInt SetSessionParam( TUint aSessionId, CNSPPlugin::TNSPSessionParamKey aParamKey,

            TUint aParamValue );

    /**

     * Wrapper for CNSPPlugin - class corresponding method

     */

    TInt GetSessionParam( TUint aSessionId, CNSPPlugin::TNSPSessionParamKey aParamKey );

    static void WriteSdpToLog( const TDesC& aMsg, CSdpDocument* aSdp );

private:

	void GetPluginL();

    static CBufBase* EncodeSdpL( CSdpDocument& aSdp );

    static void ResetAndDestroyInfo( TAny* aArray );

    //friend class UT_CMceNatPluginManager;

    friend class UT_CMceNatPluginManager;

private: // Data

    // pointer to plugin implementation

    CNSPPlugin* iPlugin;

    //definitions for unit testing

	MCEMM_UT_DEFINITIONS

	};

#endif // CMCENATPLUGINMANAGER_H

// End of File