/*

* Copyright (c) 2006-2010 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:  Bluetooth Audio Manager ECom plug-in class declaration.

*

*/

#ifndef BTAUDIOMANPLUGIN_H

#define BTAUDIOMANPLUGIN_H

#include <e32base.h>

#include <bt_sock.h>

#include <btengplugin.h>

#include "BTAccClient.h"

#include "basrvactive.h"

#include "BTAccClientSrv.h"

/**

 *  BTEng plug-in base class.

 *

 *

 *  @lib btaudiomanclient.lib

 *  @since S60 v3.2

 */

class CBtAudioManPlugin: public CBTEngPlugin, public MBasrvActiveObserver

    {

public:

    /**

     * Constructor; loads the plug-in through the ECom framework.

     *

     * @since S60 v3.2

     * @param aImplementationUid The UID of the interface implementation 

     *                           to be loaded.

     * @return Pointer to the constructed CBtAudioManPlugin object.

     */

    static CBtAudioManPlugin* NewL();

    /**

     * Destructor; destroys the plug-in through the ECom framework.

     */

    virtual ~CBtAudioManPlugin();

    /**

     * Sets the observer for receiving connection events through the 

     * MBTEngPluginObserver interface. This method MUST be called 

     * before any command is given to the plug-in

     *

     * @since S60 v3.2

     * @param aObserver The observer of connection events.

     */

    void SetObserver( MBTEngPluginObserver* aObserver );

    /**

     * Gets the list of profiles implemented by this plug-in.

     * Profiles are identified by the SDP Service Class UUID (short form), 

     * as assigned by the Bluetooth SIG.

     *

     * @since S60 v3.2

     * @param aProfiles Array of integers identifying the BT profiles 

     *                  implemented by this plug-in.

     */

    void GetSupportedProfiles( RProfileArray& aProfiles );

    /**

     * Indicates if this plug-in implements the specified profiles.

     * Profiles are identified by the SDP Service Class UUID (short form), 

     * as assigned by the Bluetooth SIG.

     *

     * @since S60 v3.2

     * @param aProfile Integer identifying the BT profile.

     * @return ETrue if the plug-in implements the requested profile, 

     *               otherwise EFalse.

     */

    TBool IsProfileSupported( const TBTProfile aProfile ) const;

    /**

     * Instructs the plug-in to create a service-level connection 

     * with the specified Bluetooth address.

     *

     * This is an asynchronous operation; on completion, the plug-in informs 

     * the observer by calling MBTEngPluginObserver::ConnectComplete with 

     * the appropriate error code.

     *

     * @since S60 v3.2

     * @param aAddr The BT device address identifying a remote device.

     * @return KErrNone on success, otherwise an appropriate error code.

     */

    TInt Connect( const TBTDevAddr& aAddr );

    /**

     * Instructs the plug-in to cancel the creation a service-level 

     * connection with the specified Bluetooth address.

     *

     * In addition, as this is part of an asynchronous operation, the plug-in 

     * completes the outstanding asyncronous request status with KErrCancel.

     *

     * @since S60 v3.2

     * @param aAddr The BT device address identifying a remote device.

     */

    void CancelConnect( const TBTDevAddr& aAddr );

    /**

     * Instructs the plug-in to create a service-level connection 

     * with the specified Bluetooth address.

     *

     * This is an asynchronous operation; on completion, the plug-in informs 

     * the observer by calling MBTEngPluginObserver::DisconnectComplete with 

     * the appropriate error code.

     *

     *

     * @since S60 v3.2

     * @param aAddr The BT device address identifying a remote device.

     *              In case the address is the NULL address, the plug-in is

     *              expected to disconnect all its connections.

     * @param aDiscType The type of disconnection; 

     *                  EGraceful for graceful (normal) disconnection, 

     *                  EImmediate for immediate (forced) disconnection.

     * @return KErrNone on success, otherwise an appropriate error code.

     */

    TInt Disconnect( const TBTDevAddr& aAddr, TBTDisconnectType aDiscType);

    /**

     * Gets the addresses of the connected devices for the specified profile.

     *

     * @since S60 v3.2

     * @param aAddrArray On return, holds the Bluetooth device addresses 

     *                   of the connected Bluetooth devices for the 

     *                   requested profile.

     * @param aConnectedProfile The profile for which the existing 

     *                          connections are requested.

     * @return KErrNone if sucessful, otherwise the error code 

     *                  indicating the error situation.

     */

    void GetConnections( RBTDevAddrArray& aAddrArray, 

                                  TBTProfile aConnectedProfile );

    /**

     * Indicates if this plug-in has a service-level connection 

     * with the specified Bluetooth address.

     *

     * @since S60 v3.2

     * @param aAddr The BT device address identifying a remote device.

     * @return The status of the connection according to the TConnectionStatus

     *         enumeration. EConnecting is interpreted that at least one 

     *         incoming connection request has been completed, but that not 

     *         all service-level connections have been fully established.

     */

    TBTEngConnectionStatus IsConnected( const TBTDevAddr& aAddr );

private:

    void RequestCompletedL(CBasrvActive& aActive);

    void CancelRequest(CBasrvActive& aActive);

private:

    CBtAudioManPlugin();

    void ConstructL();

    TInt PrepareAsyncRequest(const TBTDevAddr& aAddr, TInt aRequestId);

    void NotifyConnectionStatus();

    TInt ReconnectIfNeccessary();

    void ReportProfileConnectionEvents(const TBTDevAddr& aAddr, const TInt aProfiles, TBool aConnected);

private: // data

    MBTEngPluginObserver* iObserver; // not own

    RBTAccClient iClient;

    CBasrvActive* iActive4ClientReq;

    TBTDevAddrPckgBuf iBTDevAddrPckgBuf;

    TBuf8<KBTDevAddrSize * 2> iDiagnostic;

    CBasrvActive* iActive4ProfileStatus;

    TProfileStatus iProfileStatus;

    TProfileStatusPckg iProfileStatusPckg;

    TInt iNotifyConnectionStatusFailure;

    };

#endif // BTAUDIOMANPLUGIN_H