/*

* Copyright (c) 2006 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:    SIMPLE engine request

*

*/

#ifndef CSimpleRequest_H

#define CSimpleRequest_H

// INCLUDES

#include <e32base.h>

#include "simplecommon.h"

#include "simplesipconncallback.h"

#include "simplecommon.h"

#include "msimpleenginerequest.h"

#include "simplerefreshtimer.h"

// FORWARD DECLARATIONS

class CSimpleSipProfileObserver;

class CSIPClientTransaction;

class CSIPSubscribeDialogAssoc;

class CSimpleRefreshTimer;

class CSIPRefresh;

// CLASS DECLARATION

/**

 * Client request buffer element

 *

 * @lib siputils

 * @since S60 3.2

 */

class CSimpleRequest : public CBase

{

public:

/** request type */

enum TSimpleSipReqType

    {

    EReqRegister=1,

    EReqPublish,

    EReqSubscribe,

    EReqSubscribeList,

    EReqSubscribeWinfo,

    EReqListenEvents,

    EReqSendIM,

    EReqReceiveIM

    };

/** request state */

enum TSimpleReqState

    {

    ESimpleInit=1,

    ESimplePendingInit,

    ESimpleRunningInit,

    ESimpleActive,

    ESimpleComplete,

    ESimpleFailed,

    ESimpleStopping,

    ESimplePending,

    ESimpleReTry,

    ESimpleRunning,

    ESimpleActiveSubs,

    ESimpleDialogReCre,

    ESimpleDeleting

    };

/** pending state substate */    

enum TSimplePendingSubState

    {

    ENoPending=0,

    EPendingModify,

    EPendingRefresh,

    EPendingModifyAndRefresh

    }; 

    /**

     * Contructor

     * @param aEngine engine api callback implementation

     * @param aReq client request

     * @param aType request type

     * @param aExpires SIP expiry time of the request 

     */

    static CSimpleRequest* NewL(

        MSimpleSipConnCallback& aEngine,

        MSimpleEngineRequest& aReq,

        TSimpleSipReqType aType,

        TUint aExpires );

    /**

     * Destructor

     */

    void Destroy();

    /**

     * Destructor

     */

    void DestroyStart();

    inline static TInt LinkOffset();       

    /**

     * Client request accessor

     *

     * @since S60 3.2

     * @return client request

     */

    MSimpleEngineRequest& Request();

    /**

     * Client SIP transaction accessor

     *

     * @since S60 3.2     

     * @return SIP transaction, may be NULL.

     */

    CSIPClientTransaction* Transaction();

    /**

     * Client SIP transaction setter

     *

     * @since S60 3.2     

     * @param aTrans SIP transaction

     */

    void SetTransaction( CSIPClientTransaction* aTrans );

    /**

     * CSIPRefresh entity accessor

     *

     * @since S60 3.2     

     * @return CSIPRefresh entity

     */

    CSIPRefresh* Refresh();

    /**

     * If the request matches with the transaction

     *

     * @since S60 3.2     

     * @param aTrans transaction

     * @return ETrue if matches

     */

    TBool Match( CSIPClientTransaction& aTrans );

    /**

     * If the request matches with the transaction

     *

     * @since S60 3.2     

     * @param aType transaction type

     * @return ETrue if matches

     */

    TBool Match( TSimpleSipReqType aType ) const;

    /**

     * If the request matches with the transaction

     *

     * @since S60 3.2     

     * @param aDialog dialog

     * @return ETrue if matches

     */

    TBool Match( const CSIPDialog& aDialog ) const;

    /**

     * If the request matches with client request

     *

     * @since S60 3.2     

     * @param aReq client request

     * @return ETrue if matches

     */

    TBool Match( MSimpleEngineRequest& aReq ) const;

    /**

     * Complete the pending request

     *

     * @since S60 3.2     

     * @param aStatus response status

     */

    void Complete( TInt aStatus );

    /**

     * Complete event request

     *

     * @since S60 3.2

     */

    void CompleteEvent( );

    /**

     * Set refresh time for the SIP request

     *

     * @since S60 3.2   

     * @param aTime time in seconds       

     */

    void SetRefreshTime( TUint aTime );

    /**

     * Refresh time accessor

     *

     * @since S60 3.2     

     * @return refresh time in seconds

     */

    TUint RefreshTime () const;

    /**

     * Start refresh timer for this request based

     * on iRefreshTime.

     *

     * @since S60 3.2     

     * @param aTime special time, if iRefreshTime not used

     */

    void StartRefreshTimer( TUint aTime = 0 );

    /**

     * Stop refresh timer

     *

     * @since S60 3.2     

     */

    void StopRefreshTimer();

    /**

     * Start expiry timer for this request

     *

     * @since S60 3.2     

     * @param aTime time

     */

    void StartExpiryTimer( TUint aTime );

    /**

     * Stop expiry timer

     *

     * @since S60 3.2     

     */

    void StopExpiryTimer();

    /**

     * Counts retry time period

     *

     * @since S60 3.2     

     * @return time

     */

    TUint RetryTime();

    /**

     * Counts retry expiry time period

     *

     * @since S60 3.2     

     * @return time

     */

    TInt RetryExpiryTime();

    /**

     * Set SIP-ETag value

     *

     * @since S60 3.2     

     * @param aTag tag, OWNERSHIP IS TRANSFERRED.

     */

    void SetETag( HBufC8* aTag );

    /**

     * get SIP-ETag value

     *

     * @since S60 3.2     

     * @return SIP-ETag value.

     */

    TPtrC8 ETag() const;

    /**

     * Status getter

     *

     * @since S60 3.2     

     * @return status

     */

    TUint Status() const;

    /**

     * Status setter

     *

     * @since S60 3.2     

     * @param aVal status value

     */

    void SetStatus( TUint aVal );

    /**

     * Dialog setter

     *

     * @since S60 3.2     

     * @param aDialog dialog

     */

    void SetDialog( CSIPSubscribeDialogAssoc* aDialog );

    /**

     * Dialog getter

     *

     * @since S60 3.2     

     * @return dialog

     */

    CSIPSubscribeDialogAssoc* Dialog( );

    /**

     * State accessor

     *

     * @since S60 3.2     

     * @return state

     */

    TSimpleReqState ReqState() const;

    /**

     * State setter

     *

     * @since S60 3.2     

     * @param aState state

     */

    void SetReqState( TSimpleReqState aState );

    /**

     * SOURCE-THROTTLE-PUBLISH time setter

     * @param expiry time in seconds

     */

    void SetThrottleTime( TUint aSeconds );

    /**

     * SOURCE-THROTTLE-PUBLISH time getter

     *

     * @since S60 3.2     

     * @return expiry time

     */

    TTime ThrottleTime( );

    /**

     * Retry-After SIP header parameter value accessor

     *

     * @since S60 3.2     

     * @return Retry-After SIP header parameter, 0 if not present

     */

    TUint RetryAfter();

    /**

     * Retry-After SIP header parameter value setter

     *

     * @since S60 3.2     

     * @param aVal Retry-After SIP header parameter, 0 if not present

     */

    void SetRetryAfter( TUint aVal );

    /**

     * Original error reason setter

     *

     * @since S60 3.2     

     * @param aVal error code

     */

    void SetReason( TInt aVal );

    /**

     * Original error reason getter

     *

     * @since S60 3.2     

     * @param aVal error code

     */

    TInt Reason( );

    /**

     * Error notify counter increse

     *

     * @since S60 3.2     

     */

    void PlusErrCount( );

    /**

     * Error notify reset

     *

     * @since S60 3.2     

     */

    void ResetErrCount( );

    /**

     * Error notify getter

     *

     * @since S60 3.2     

     */

    TInt ErrCount( );

    /**

     * Pending accessor

     *

     * @since S60 3.2     

     * return pending substate

     */

    TSimplePendingSubState PendingState();

    /**

     * Pending state setter

     *

     * @since S60 3.2     

     * @param aVal state

     */

    void SetPendingState( TSimplePendingSubState aVal );

    /**

     * Add new Pending state to the current state

     *

     * @since S60 3.2     

     * @param aVal state

     */

    void AddPendingState( TSimplePendingSubState aVal );    

    /**

     * Access iData

     *

     * @since S60 3.2     

     * @return data

     */

    TPtrC8 Data() const;

    /**

     * Set iData

     *

     * @since S60 3.2     

     * @param aData data

     */

    void SetDataL( const TDesC8& aData );

    /**

     * Access iRecipientId

     *

     * @since S60 5.0

     * @return recipient ID

     */

    TPtrC8 RecipientL() const;

    /**

     * Set iRecipientId

     *

     * @since S60 5.0

     * @param aRecipientId recipient ID

     */

    void SetRecipientL( const TDesC8& aRecipientId );

    /**

     * Accesor for iGivenETag

     * 

     * @since S60 3.2       

     * @return true if given ETag

     */

    TBool GivenETag() const; 

    /**

     * Setter for iGivenETag

     * 

     * @since S60 3.2       

     * @param aVal true if given ETag

     */  

    void SetGivenETag( TBool aVal );         

    /**

     * Accesor for request MIME content type

     * 

     * @since S60 3.2       

     * @return content type

     */

    TPtrC8 RequestContentType();

    /**

     * Setter for request MIME content type

     *

     * @since S60 3.2       

     * @param aData content type

     */     

    void SetRequestContentTypeL( const TDesC8& aData );

    /**

     * Get SIP Subscription-State.

     * @return Subscription-State

     */

    MSimpleEngineRequest::TSimpleSipSubscriptionState SipSubscriptionState();

private:

    /**

     * contructor

     */

    CSimpleRequest( MSimpleSipConnCallback& aEngine,

                    MSimpleEngineRequest& aReq,

                    TSimpleSipReqType aType,

                    TUint aExpires );

    /**

     * contructor

     */

    void ConstructL();

    /**

     * Keep destructor private since it's easier to

     * find Destroy() methods in the code when

     * debugging.

     *

     * @since S60 3.2     

     */

    virtual ~CSimpleRequest();

    /**

     * Handle state machine of subscription

     *

     * @since S60 3.2     

     * @param aStatus status

     */

    void DoCompleteSubscription( TInt aStatus );

    /**

     * Handle notification of subscription and update state machine if terminated.

     *

     * @since S60 3.2     

     * @param aStatus status

     */