// 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:

// AT Command Class for Sms

// Also contains member functions used by different ATCommands in the GsmTsy.

// 

//

#include "mSLOGGER.H"

#include "ATIO.H"

#include "ATSTD.H"

#include "mSMSSTOR.H"

#include "Matstd.h"

#include "smsbase.H"

#include "smsutil.h"	// for CATSmsUtils

#include <exterror.h>		// for KErrGsmSMS... error codes

// Constants

//

// Macros

//

// This macro is used to help keep un-intereting details outside of the main code

// in this file. The macro uses logging functions and always prefixes writes to the 

// log with the name of the class which is implemented in this file. This macro must

// only be used by code in this file.

#ifdef __LOGDEB__

_LIT8(KLogEntry,"CATSmsCommands::%S\t%S");

#define LOCAL_LOGTEXT(function,text) {_LIT8(F,function);_LIT8(T,text);LOGTEXT3(KLogEntry,&F,&T);}

#else

#define LOCAL_LOGTEXT(function,text)

#endif

//

// CATSmsCommands definitions

//

CATSmsCommands::CATSmsCommands(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit,CPhoneGlobals* aGlobals)

	:CATCommands(aIo,aTelObject,aInit,aGlobals)

/**

 * C++ constructor

 */

 	{

	}

CATSmsCommands::~CATSmsCommands()

/**

 * C++ destructor

 */

 	{}

CATSmsCommands::TRequest CATSmsCommands::RequestATCompleted()

/**

 * This method is a query function which returns the TRequest value for a request which 

 * has completed, otherwise ENone is returned to denote that no request has completed.

 *

 * If this method returns that a request has completed then this method will also

 * reset the iRequestCompleted flag so that this method that the completion of a 

 * request is reported only once. 

 *

 * @return The TRequest value of the request that completed, otherwise ENone

 */

 	{

	LOCAL_LOGTEXT("RequestATCompleted","enter function");

	if(iRequestCompleted)

		{

		const TRequest tmp(iRequest);

		iRequest=ENone;

		iRequestCompleted=EFalse;

		return tmp;

		}

	return ENone;

	}

TBool CATSmsCommands::RequestATActive() const

	{

	LOCAL_LOGTEXT("RequestATActive","enter function");

	return iRequest!=ENone;

	}

void CATSmsCommands::RequestATCommandCancel()

/**

 */

	{

	LOCAL_LOGTEXT("RequestATCommandCancel","enter function");

	if(!RequestATActive())

		return;	// There's nothing to do if we're not active

	// Cancel operations

	LOCAL_LOGTEXT("RequestATCommandCancel","Cancelling...");

	iRequestCancel=ETrue;

	}

void CATSmsCommands::InitializeRequestData(TRequest aReq)

	{

	LOCAL_LOGTEXT("InitializeRequestData","enter function");

	iRequest=aReq;

	iRequestStage=0;	

	iRequestCompleted=EFalse;

	iRequestError=KErrNone;

	iRequestCancel=EFalse;

	}

TInt CATSmsCommands::RequestATCommand(TRequest aReq)

	{

	LOCAL_LOGTEXT("RequestATCommand","enter function");

	// Ensure we are not allready handling a request

	if(RequestATActive())

		{

		LOCAL_LOGTEXT("RequestATCommand","A request is already in progress, returning KErrInUse");

		return KErrInUse;

		}

	//Initialize request data

	InitializeRequestData(aReq);

	// Handle request 

	TInt ret(KErrNone);

	const TEventSource nullSource(TEventSource(-1)); 		// This fiddle is so we can pass a 'null' event source

	switch(aReq)

		{

	case EGetSCAFromPhone:

		ret=GetSCAFromPhone(nullSource);

		break;

	case ESetSCAInPhone:

		ret=SetSCAInPhone(nullSource);	

		break;

	case ESetPhoneToCMTMode:

		ret=SetPhoneToCMTMode(nullSource);

		break;

	case ESetPhoneToCMTIMode:

		ret=SetPhoneToCMTIMode(nullSource);

		break;

	case ENone:		// Must not be caught by default case

		LOCAL_LOGTEXT("RequestATCommand","Request is ENone, so will not do anything");

		break;

	default:

		LOCAL_LOGTEXT("RequestATCommand","Unknown request");

		__ASSERT_DEBUG(EFalse,Panic(EATSmsCommandsUnknownRequest));

		ret=KErrNotSupported;

		}

	LOCAL_LOGTEXT("RequestATCommand","exit function");

	return ret;

	}

TInt CATSmsCommands::SetSCAInPhone(const TEventSource& aEventSource)

/**

 * Sets phone's default SCA to be that which is stored in iRequestSCA.

 * IMPORTANT: If this method returns an error then EventSignal will complete our request.

 * @return Standard KErr... codes

 */

	{

	LOCAL_LOGTEXT("SetSCAInPhone","enter function");

	__ASSERT_DEBUG(iRequest==ESetSCAInPhone,Panic(EATSmsCommandsWrongRequest));

	TInt ret(KErrNone);

	switch(iRequestStage)

		{

	case EStage0:

		if(iRequestCancel)		// Handle request cancellation, if needed

			{

			LOCAL_LOGTEXT("SetSCAInPhone","Request has been cancelled");

			ret=KErrCancel;

			}

		else

			{

			// Set the SCA to use as the default in the phone's memory

			iTxBuffer.Copy(KSmsSetSCCommand);

			iTxBuffer.Append(KDblQuoteChar);

			const TInt count(iRequestSCA.iTelNumber.Length());

			for(TInt i=0;i<count;++i)

				{

				if(CATSmsUtils::IsAddressChar(TChar(iRequestSCA.iTelNumber[i])))

					iTxBuffer.Append(TChar(iRequestSCA.iTelNumber[i]));

				}

			iTxBuffer.Append(KDblQuoteChar);

			iTxBuffer.Append(KCommaChar);

			TUint val;

			CATSmsUtils::GetTypeOfAddressInDecimal(iRequestSCA,val);		

			iTxBuffer.AppendNum(val,EDecimal);

			iTxBuffer.Append(KCarriageReturn);

			iIo->Write(this,iTxBuffer);

			iIo->SetTimeOut(this,KATWriteTimeout);

			}

		break;

	case EStage1:

		HandleWriteCompletion(aEventSource);

		break;

	case EStage2:

		// If we did not get an error

		if(HandleResponseCompletion(aEventSource)==KErrNone)	

			CompleteRequest();

		else

			{

			if(iRequestCancel)		// Handle request cancellation, if needed

				{

				LOCAL_LOGTEXT("SetSCAInPhone","Request has been cancelled");

				ret=KErrCancel;

				}

			else

				{

				// An error occurred

				// Try to set SCA again, but this time don't use <tosca>

				// The Motorola Timeport needs this behaviour

				iTxBuffer.Copy(KSmsSetSCCommand);

				iTxBuffer.Append(KDblQuoteChar);

				// Prefix phone number with a '+' if it's international

				if(iRequestSCA.iTypeOfNumber==RMobilePhone::EInternationalNumber)

					iTxBuffer.Append(KPlusChar);

				const TInt count(iRequestSCA.iTelNumber.Length());

				for(TInt i=0;i<count;++i)

					{

					if(CATSmsUtils::IsAddressChar(TChar(iRequestSCA.iTelNumber[i])))

						iTxBuffer.Append(TChar(iRequestSCA.iTelNumber[i]));

					}

				iTxBuffer.Append(KDblQuoteChar);

				iTxBuffer.Append(KCarriageReturn);

				iIo->Write(this,iTxBuffer);

				iIo->SetTimeOut(this,KATWriteTimeout);

				}

			}

		break;

	case EStage3:

		HandleWriteCompletion(aEventSource);

		break;

	case EStage4:

		if((ret=HandleResponseCompletion(aEventSource))==KErrNone)

			{

			// We've finished the request

			CompleteRequest();

			}

		break;

	default:

		LOCAL_LOGTEXT("SetSCAInPhone","Unknown request stage");

		__ASSERT_DEBUG(EFalse,Panic(EATSmsCommandsUnknownRequestStage));

		ret=KErrGeneral;

		}

	++iRequestStage;		// Increment request stage for next iteration

	return ret;

	}

TInt CATSmsCommands::GetSCAFromPhone(const TEventSource& aEventSource)

/**

 * Gets phone's default SCA from phone and saves it in iRequestSCA.

 * IMPORTANT: If this method returns an error then EventSignal will complete our request.

 * @return Standard KErr... codes

 */

	{

	LOCAL_LOGTEXT("GetSCAFromPhone","enter function");

	__ASSERT_DEBUG(iRequest==EGetSCAFromPhone,Panic(EATSmsCommandsWrongRequest));

	TInt ret(KErrNone);

	switch(iRequestStage)

		{

	case EStage0:

		if(iRequestCancel)		// Handle request cancellation, if needed

			{

			LOCAL_LOGTEXT("GetSCAFromPhone","Request has been cancelled");

			ret=KErrCancel;

			}

		else

			{	

			// Initialize data

			iRequestSCA.iTypeOfNumber=RMobilePhone::EUnknownNumber;

			iRequestSCA.iNumberPlan=RMobilePhone::EUnknownNumberingPlan;

			iRequestSCA.iTelNumber.Zero();

			// Send SCA request to phone 

			iTxBuffer.Format(KServiceCentreQueryCommand);

			iIo->Write(this,iTxBuffer);

			iIo->SetTimeOut(this,KATWriteTimeout);

			}

		break;

	case EStage1:

		HandleWriteCompletion(aEventSource);

		break;

	case EStage2:

		ret=HandleResponseCompletion(aEventSource);

		if(ret!=KErrNone)

			break;

		// Did the phone have an SCA in default memory

		ret=ParseRxResultsForCSCAResponse(iRequestSCA);

		if(ret==KErrNone && iRequestSCA.iTelNumber.Length()>0)

			{

			// We've finished the request

			CompleteRequest();

			ret=KErrNone;

			}

		else

			{

			if(iRequestCancel)		// Handle request cancellation, if needed

				{

				LOCAL_LOGTEXT("GetSCAFromPhone","Request has been cancelled");

				ret=KErrCancel;

				}

			else

				{

				// Check if the phone has a SCA after doing a memory refresh

				iTxBuffer.Format(KServiceCentreQueryCommandWithCRES);

				iIo->Write(this,iTxBuffer);

				iIo->SetTimeOut(this,KATWriteTimeout);

				}

			}

		break;

	case EStage3:

		HandleWriteCompletion(aEventSource);

		break;

	case EStage4:

		ret=HandleResponseCompletion(aEventSource);

		if(ret!=KErrNone)

			break;

		// Did the phone have an SCA in default memory, if so initialise iRequestSCA

		ret=ParseRxResultsForCSCAResponse(iRequestSCA);

		if(ret==KErrNone)

			{

			// We've finished the request

			CompleteRequest();

			ret=KErrNone;

			}

		else

			{

			// We do not have an SCA and have exhausted all possibilities ;-(

			LOCAL_LOGTEXT("GetSCAFromPhone","Have not been able to find an SCA to use");

			//

			// We have to complete with KErrNone so that the second part of the GetSMSP 

			// retrieval IPC is called. If we do not do this the MSMSMESS file will get

			// it's iGetSMSPList array out of sync.	

			CompleteRequest();

			ret=KErrNone;

			}

		break;

	default:

		LOCAL_LOGTEXT("GetSCAFromPhone","Unknown request stage");

		__ASSERT_DEBUG(EFalse,Panic(EATSmsCommandsUnknownRequestStage));

		ret=KErrGeneral;

		}

	++iRequestStage;		// Increment request stage for next iteration

	return ret;

	}

TInt CATSmsCommands::SetPhoneToCMTMode(const TEventSource& aEventSource)

/**

 * Sets the phone into CMT mode by using 'AT+CNMI=x,2'

 * IMPORTANT: If this method returns an error then EventSignal will complete our request.

 * @return Standard KErr... codes

 */

	{

	LOCAL_LOGTEXT("SetPhoneToCMTMode","enter function");

	__ASSERT_DEBUG(iRequest==ESetPhoneToCMTMode,Panic(EATSmsCommandsWrongRequest));

	TInt ret(KErrNone);

	switch(iRequestStage)

		{

	case EStage0:

		if(iRequestCancel)		// Handle request cancellation, if needed

			{

			LOCAL_LOGTEXT("SetPhoneToCMTMode","Request has been cancelled");

			ret=KErrCancel;

			}

		else

			{	

			// Send 'AT+CNMI=?' to find out phones capabilities

			iTxBuffer.Format(KGetCNMIConfigCommand);

			iIo->Write(this,iTxBuffer);

			iIo->SetTimeOut(this,KATWriteTimeout);

			}

		break;

	case EStage1:

		HandleWriteCompletion(aEventSource);

		break;

	case EStage2:

		{						// Curly brackets used to scope use of cnmiFirstValue

		//

		// If the phone returns ERROR then ignore the error and assume the 

		// CNMI first parameter should be 2	

		TInt cnmiFirstValue(ECnmiMode2);

		if(HandleResponseCompletion(aEventSource)==KErrNone)

			{

			// Parse the response from the phone

			TRAP(ret,ParseCNMIFirstCapabilityL(cnmiFirstValue));

			ret=KErrNone;		// Ignore errors from ParseCNMIFirstCapabilityL call

			}

		// Send 'AT+CNMI=x,2' to phone to set it to CMT mode

		iTxBuffer.Format(KSmsSetCMTMode,cnmiFirstValue);

		iIo->Write(this,iTxBuffer);

		iIo->SetTimeOut(this,KATWriteTimeout);

		}

		break;

	case EStage3:

		HandleWriteCompletion(aEventSource);

		break;

	case EStage4:

		ret=HandleResponseCompletion(aEventSource);

		if(ret==KErrNone)

			{

			// We have completed our request

			CompleteRequest();

			}

		break;

	default:

		LOCAL_LOGTEXT("SetPhoneToCMTMode","Unknown request stage");

		__ASSERT_DEBUG(EFalse,Panic(EATSmsCommandsUnknownRequestStage));

		ret=KErrGeneral;

		}

	++iRequestStage;		// Increment request stage for next iteration

	return ret;

	}

TInt CATSmsCommands::SetPhoneToCMTIMode(const TEventSource& aEventSource)

/**

 * Sets the phone into CMTI mode by using 'AT+CNMI=x,1'

 * IMPORTANT: If this method returns an error then EventSignal will complete our request.

 * @return Standard KErr... codes

 */

	{

	LOCAL_LOGTEXT("SetPhoneToCMTIMode","enter function");

	__ASSERT_DEBUG(iRequest==ESetPhoneToCMTIMode,Panic(EATSmsCommandsWrongRequest));

	TInt ret(KErrNone);

	switch(iRequestStage)

		{

	case EStage0:

		if(iRequestCancel)		// Handle request cancellation, if needed

			{

			LOCAL_LOGTEXT("SetPhoneToCMTIMode","Request has been cancelled");

			ret=KErrCancel;

			}

		else

			{	

			// Send 'AT+CNMI=?' to find out phones capabilities

			iTxBuffer.Format(KGetCNMIConfigCommand);

			iIo->Write(this,iTxBuffer);

			iIo->SetTimeOut(this,KATWriteTimeout);

			}

		break;

	case EStage1:

		HandleWriteCompletion(aEventSource);

		break;