// Copyright (c) 1997-2009 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:

// Sms AT Command Base Class Header

// 

//

/**

 @file

 @internalAll 

*/

#ifndef __SMSBASE_H__

#define	__SMSBASE_H__

#include "ATBASE.H"

#include "smsutil.h"		// for KMaxAsciiPduLength

// Constants 

const TUint KATWriteTimeout=20000;		// Is in milli seconds, 

const TInt  KATResponseTimeout=40;		// Is in seconds, set to 40 seconds as +CMGS response

                                      // can take upto 15 seconds when the GSM network is busy

const TUint KCapsCnmiMode1 = 0x02;

const TUint KCapsCnmiMode2 = 0x04;

const TUint KCapsCnmiMode3 = 0x08;

class CMobileSmsStore;

class CATSmsCommands : public CATCommands

	{

public:

	CATSmsCommands(CATIO* aIo, CTelObject* aTelObject,CATInit* aInit,CPhoneGlobals* aGsmStatus);

	~CATSmsCommands();

protected:

	// from CATBase

	virtual void EventSignal(TEventSource aEventSource);

	// Request common AT commands be carried out

	enum TRequest {ENone, 

	               EGetSCAFromPhone, ESetSCAInPhone, 

				   ESetPhoneToCMTMode,ESetPhoneToCMTIMode};

	TInt RequestATCommand(TRequest aReq);

	void RequestATCommandCancel();

	TRequest RequestATCompleted();		// Sets iRequestCcompleted to EFalse

	TBool RequestATActive() const;

	// Utility

	void HandleWriteCompletion(TEventSource aSource);

	TInt HandleResponseCompletion(TEventSource aSource,TBool aValidateExpectString=ETrue);

	TInt ParseRxResultsForCSCAResponse(RMobilePhone::TMobileAddress& aTelNumber);

	TInt DoParseRxResultsForCSCAResponseL(RMobilePhone::TMobileAddress& aTelNumber);

	TInt CMSErrorValue();

	TInt ConvertCMSErrorToKErr(const TInt& aCmsError) const;

	TBool ComparePrefMem(const TStorageType& aName) const;

	void SetCurrentPrefMem(const TStorageType& aStorageName);

private:

	// Request functions

	TInt GetSCAFromPhone(const TEventSource& aEventSource);

	TInt SetSCAInPhone(const TEventSource& aEventSource);

	TInt SetPhoneToCMTMode(const TEventSource& aEventSource);

	TInt SetPhoneToCMTIMode(const TEventSource& aEventSource);

	// Utility 

	void CompleteRequest(TInt aError=KErrNone);

	void InitializeRequestData(TRequest aReq);

	void ProcessCapsElementL(TDblQueIter<CATParamListEntry>& aIter,TInt32& aCapsMask);

	void ParseCNMIFirstCapabilityL(TInt& aHighestValue);

protected:

	TInt  iRequestError;		//KErr... value set when request completes

	RMobilePhone::TMobileAddress iRequestSCA; // Used by EGetSCAFromPhone & ESetSCAInPhone

private:

	enum { EStage0=0, EStage1, EStage2, EStage3, EStage4, EStage5, EStage6, EStage7 };

	enum 

		{

		ECnmiMode0,

		ECnmiMode1,

		ECnmiMode2,

		ECnmiMode3

		};

	TBool iRequestCompleted;	//ETrue if, and only if, a request has completed

	TRequest iRequest;

	TInt iRequestStage;

	TBool iRequestCancel;

	};

#endif