/*

* Copyright (c) 2002-2005 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:   class for handling SUPL_POS_INIT message...

*

*/

#ifndef C_COMASUPLPOSINITSTATE_H

#define C_COMASUPLPOSINITSTATE_H

#include <e32base.h>

#include "epos_comasuplstartstate.h"

#include "epos_comasuplsession.h"

#include "epos_comasuplasnbase.h"

class COMASuplSETCapabilities;

class RMobilePhone;

class COMASuplPOSRequestor;

class COMASuplReqAsstData;

class COMASuplPosition;

class COMASuplPosPayload;		

class COMASuplVelocity;

/**

 *  COMASuplPosInitState handles all SUPL_POS_INIT related processing.  

 *  @lib eposomasuplprotocolhandler.lib

 *  @since S60 v3.1u

 */

class COMASuplPosInitState : public COMASuplStartState

{

	public :  // Constructor 

		/**

		* NewL Method.

		* @since S60 v3.1u

		* @param aCapabilities,Allowed Capabilities

		* @param aMobilePhone,

		* @param aMsgTimeout,Timeout for message

		* @return Instance of COMASuplPosInitState

		*/ 

		static COMASuplPosInitState* NewL(COMASuplSETCapabilities* aCapabilities,

										  RMobilePhone& aMobilePhone,TInt aMsgTimeout,

										  COMASuplPOSRequestor* aPosRequestor,TInt aAllowedCapabilities,

										  COMASuplSession::TOMASuplReqType aRequestType, TOMASuplPosMethod aPosMethod,COMASuplAsnHandlerBase* aOMASuplAsnHandlerBase,

										  HBufC8* aEncodedSuplInit = NULL,

										  HBufC8* aHSLPAddress = NULL);

		/**

		* Destructor.

		*/

		~COMASuplPosInitState();

    public:		//COMASuplState

    /**

		* GenerateMessageL Method,Generates message...which message to be generate will be depend on derived class implementation

		* @since S60 v3.1u

		* @param None

		* @return System wide error

		*/ 

		virtual TInt GenerateMessageL();

    	/**

		* EncodeMessageL Method,Encodes message...which message to be generate will be depend on derived class implementation

		* @since S60  v3.1u

		* @param aSuplVersion, version of SUPL

		* @param aSessionId, sessionid of session.

		* @param aError, error code if any error occures while conversion.

		* @return encoded data, HBufC8*

		*/ 

		virtual HBufC8* EncodeMessageL(TOMASuplVersion &aSuplVersion,

									   COMASuplSessionID* aSessionId,TInt &aError);

	   /**

		* GetPosParamsL,Retrive Optional parameters for

		* SUPL POS INIT Message from POS Message plug-in

		* @since S60  v3.1u

		*/ 

		virtual void GetPosParamsL();

		void CancelOperation();

	public: // From MOMASuplMsgStateObserver

		/**

		* OperationCompleteL,Notifies about complaetion of operation with or without error.

		*@since Series 60 3.1u

		*@param aError,error code occured while completion of operation.

		*/

		virtual void OperationCompleteL(TInt aError);

		/**

		* GetPositionComplete,Notifies about complaetion of operation with or without error.

		*@since Series 60 3.1u

		*@param None

		*/

		void GetPositionComplete(TInt /*aError*/);

	public: //From MOMASuplETelObserver

	    /**

	     * RequestCompleted Method, Location Id request for comparision completed succesfully

	     * @since S60 v3.1u

	     * @param aLocationId, all location related information

	     * @param aErrorCode, Failure reason code        

	     * @return None

	     */

	    void ComparisionLocationIDRequestCompletedL(COMASuplLocationId* aLocationId,TInt aErrorCode);

	public:	

		/**

		* IsGenerationInProgress,returns status of generation of message

		*@since Series 60 3.1u

		*@param None

		@retun TBool

		*/

		TBool IsGenerationInProgress();

		/**

		*GetRemainingPospayLoadL,Gets the remaining Pospayload (i.e.more than 8 kb...used for sending with SUPL_POS) 

		*Callee gets ownership....

		*@since Series 60 3.1

		*@param None

		@retun COMASuplPosPayload*

		*/

		COMASuplPosPayload* GetRemainingPospayLoadL();

		/**

		*IsPosPayloadPresent,Checks if POSPayload is present in POSINIT

		*Callee gets ownership....

		*@since Series 60 3.1

		*@param None

		@retun TBool

		*/

		TBool IsPosPayloadPresent();

	private : 

	    //Constuctor

		COMASuplPosInitState(COMASuplSETCapabilities* aCapabilities,RMobilePhone& aMobilePhone,

							 TInt aMsgTimeout, COMASuplPOSRequestor* aPosRequestor,COMASuplSession::TOMASuplReqType aRequestType,COMASuplAsnHandlerBase* aOMASuplAsnHandlerBase);

        /**

        * ConstructL Method, 2nd phase construction

        * @since S60  v3.1u

        * @param None

        * @return None

        */

		void ConstructL(TInt aAllowedCapabilities, TOMASuplPosMethod aPosMethod, HBufC8* aEncodedSuplInit = NULL, HBufC8 *aHSLPAddress = NULL);

		/**

        * ValidateSetCapabilities Method to validate the capabilities of

        * the SET against the Capabilities retrieved during the construction

        * of SUPL POS INIT

        * @since S60  v3.1u

        * @param None

        * @return None

        */

		TInt ValidateSetCapabilities();

		/**

		* ComputeCapabilities Method,Computes capabilities.. does SETCaps = SETCaps & AllowedCaps

		* @since S60 v3.1u

		* @param None

		* @return None

		*/

		void ComputeCapabilities();

		/**

		* UpdateCapabilities modfies capability if 

		* @since S60 v3.1u

		* @param None

		* @return None

		*/

		void UpdateCapabilities(); 

		/**

		* ComputeSuplInitVerL Method,Computes the Verof SUPL INIT

		* in case of Network Initiated Location requests.

		* @since S60 v3.1u

		* @param None

		* @return None

		*/

		TBool ComputeSuplInitVerL();

        /**

		* StartTimer Method, Starts timer...

		* @since Series 60 3.1u

		* @param None

		* @return None

		*/ 

		void StartTimer();

        /**

		* StripPospayLoadL Method, Strips Pospayload data if it exceeds more than 8KB

		* @since Series 60 3.1

		* @param  None

		* @return None

		*/ 

		void StripPospayLoadL();		

	private://Logging

		void LogPosPayloadData();

		void LogSETCapabilities();

		void LogPosition();

		void LogReqAssistanceData();

		void LogVelocity(COMASuplVelocity* velocity);

		void LogPacket(const TDesC8& aPacket);

		void PrintHex(const TDesC8& aBuffer,TInt aLine);

	private : //Data

		COMASuplSETCapabilities *iCurSetCapabilities;

		COMASuplSETCapabilities* iOldCapabilities;

		COMASuplReqAsstData *iReqAsstData;

		COMASuplPosition *iPosition;

		COMASuplPosPayload *iPosPayload;

		COMASuplVelocity *iVelocity;

		COMASuplSession::TOMASuplReqType iRequestType;

		HBufC8 *iEncodedSuplInit;

		HBufC8 *iHSLPAddress;

		TBuf8<64> iRes;

		TBool iVerPresent;

        TBool iPosPayloadPresent;

        COMASuplPosPayload* iRemainingPospayload;

        //Flag to indicate that the position data has to be ignored

        TBool   iIgnorePosData;

        //Flag to indicate fetching of pos data was repeated due to change in cell id 

        TBool   iRepeatedPosDataFetch;

    	COMASuplPosSessionBase::TOMASuplPositioningMethod iPosMethod;

};

#endif // C_COMASUPLPOSINITSTATE_H