/* 

 *

 * Copyright (c) <2010> Comarch S.A. and/or its subsidiary(-ies).

 * 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".

 *

 * Original Contributors:

 * Comarch S.A. - original contribution.

 *

 * Contributors:

 *

 * Description:

 *

 */

#ifndef DATAHANDLER_H_

#define DATAHANDLER_H_

#include <e32base.h>

class CHsHFPParser;

class CHsHFPCommand;

class CHsHFPFeatureManager;

class CDesC8ArrayFlat;

/**

 * @brief Manages AT commands handling

 */

class CHsHFPDataHandler : public CBase

    {

public:

    /**

     * Two-phase constructor

     * @return instance of class

     */

    static CHsHFPDataHandler* NewL();

    /**

     * Two-phase constructor

     * @return instance of class

     */

    static CHsHFPDataHandler* NewLC();

    /**

     * Destructor

     */

    ~CHsHFPDataHandler();

public:

    /**

     * Profile's method for handling AT Commands

     * 

     * @param aDataIn AT command received by HS

     * @param aFromAG denotes if AT command was sent from AG

     * @param aDataOut AT response

     * 

     */

    void ProcessDataL(const TDesC8& aDataIn, const TBool aFromAG,

            TDes8& aDataOut);

    /**

     * Profile's method for handling AG client disconnection

     * 

     * @param aErr disconnection reason

     */

    void HandleClientDisconnected(TInt aErr);

    /**

     * Profile's method for handling AG client connection

     * 

     * @param aCommandOut AT response

     */

    void HandleClientConnected(TDes8& aCommandOut);

    /**

     * Profile's method for accepting incoming call

     * 

     * @param aCommandOut AT response

     */

    void HandleAcceptCallL(TDes8& aCommandOut);

    /**

     * Profile's method for releasing ongoing call

     * 

     * @param aCommandOut AT response

     */

    void HandleReleaseCallL(TDes8& aCommandOut);

private:

    /**

     * Constructor for performing 1st stage construction

     */

    CHsHFPDataHandler();

    /**

     * Constructor for performing 2nd stage construction

     */

    void ConstructL();

private:

    /**

     * Splits multiple AT commands 

     * 

     * @param aCommands 8-bit descriptor containing

     */

    CDesC8ArrayFlat* SplitCommandsL(const TDesC8 &aCommands);

    /**

     * Common funcionality for HandleAcceptCallL() and HandleReleaseCall().

     * 

     * @param aCommand input AT command

     * @param aResponse  AT response

     */

    void PerformRequestL(const TDesC8& aCommand, TDes8& aResponse);

private:

    /** Command array's granularity */

    const TInt KCommandArrayGranularity = 2;

    /** Temporary buffer's max length */

    const TInt KTmpBufferLength = 256;

    /** AT command parser */

    CHsHFPParser* iParser;

    /** Feature manager */

    CHsHFPFeatureManager* iFeatureManager;

    };

#endif /* DATAHANDLER_H_ */