/*

 * Component Name: Headset Simulator

 * Author: Comarch S.A.

 * Version: 1.0

 * Copyright (c) 2010 Comarch S.A.

 *  

 * This Software is submitted by Comarch S.A. to Symbian Foundation Limited on 

 * the basis of the Member Contribution Agreement entered between Comarch S.A. 

 * and Symbian Foundation Limited on 5th June 2009 (“Agreement”) and may be 

 * used only in accordance with the terms and conditions of the Agreement. 

 * Any other usage, duplication or redistribution of this Software is not 

 * allowed without written permission of Comarch S.A.

 * 

 */

#ifndef HSAUDIOSERVER_H_

#define HSAUDIOSERVER_H_

#include <e32std.h>

#include <bt_sock.h>

/** Buffer size */

const TInt KHsSynchronousBufferLength = 128;

/**

 * @brief Server for SCO connections

 */

class CHsAudioServer : public CBase, public MBluetoothSynchronousLinkNotifier

{

public:

    /**

     * Two-phase constructor

     * @param aSocketServ socket server session

     * @param aPullAudio denotes if audio should be pulled

     * @return instance of class

     */

    static CHsAudioServer* NewL( RSocketServ& aSocketServ, TBool aPullAudio );

    /**

     * Two-phase constructor

     * @param aSocketServ socket server session

     * @param aPullAudio denotes if audio should be pulled

     * @return instance of class

     */

    static CHsAudioServer* NewLC( RSocketServ& aSocketServ, TBool aPullAudio );

    /**

     * Destructor

     */

    ~CHsAudioServer();

public:

    /**

     * Prepares audio server for incoming connections

     */

    void ListenL();

    /**

     * Connects audio server to the specified device

     * 

     * @param aAddr device's bluetooth address

     */

    void ConnectL( const TBTDevAddr &aAddr );

    /**

     * Closes current connections and prepares the server for the new one

     */

    void Disconnect();

    /**

     * Turns off audio server

     */

    void Shutdown();

    /**

     * Method allows to accept \ reject SCO connection establishment 

     * 

     * @param aPullAudio ETrue if SCO connection is supposed to be accepted 

     */

    void SetPullAudio( TBool aPullAudio );

    /**

     * Checks if client is connected

     * 

     * @return ETrue if client connected

     */

    TBool IsConnected();

    /**

     * Checks if server is ready for incoming requests

     * 

     * @return ETrue if server is ready

     */

    TBool IsListen();

private:

    /**

     * Constructor for performing 1st stage construction

     * 

     * @param aSocketServ socket server session

     * @param aPullAudio denotes if audio should be pulled

     */

    CHsAudioServer( RSocketServ& aSocketServ, TBool aPullAudio );

    /**

     * Constructor for performing 2nd stage construction

     */

    void ConstructL();

private:

    // Methods derived from MBluetoothSynchronousLinkNotifier

    void HandleSetupConnectionCompleteL( TInt aErr );

    void HandleDisconnectionCompleteL( TInt aErr );

    void HandleAcceptConnectionCompleteL( TInt aErr );

    void HandleSendCompleteL( TInt aErr );

    void HandleReceiveCompleteL( TInt aErr );

private:

    /** Session of socket server */

    RSocketServ& iSServ;

    /** SCO socket */

    CBluetoothSynchronousLink* iSCOSocket;

    /** Buffer for received data */

    TBuf8 <KHsSynchronousBufferLength> iReceiveBuffer;

    /** Buffer for data to be send */

    TBuf8 <KHsSynchronousBufferLength> iSendBuffer;

    /** Types of accepted SCO packets */

    TBTSyncPackets iAcceptedPackets;

    /** DevAddr of connected device */

    TBTDevAddr iAddr;

    /** Denotes if server is ready for incoming connections */

    TBool iListening;

    /** Denotes if client is connected */

    TBool iConnected;

    /** Denotes if audio should be transferred */

    TBool iPullAudio;

};

#endif /* HSAUDIOSERVER_H_ */