// Copyright (c) 2001-2009 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:

//

#include <et_phone.h>			 // for CTelObject class

#include "Gprscontext.h"		// for CGprsContext

#include "atgprscontextdelete.h" // header file for this source file

#include "mSLOGGER.H"			 // for LOGTEXT macros

#include "ATIO.H"				 // for CATIO

#include "Matstd.h"			     // for AT command strings, and other stuff

#include "NOTIFY.H"				 // for CNotifications

const TUint KWriteTimeout=10000;		// Is in milli seconds

const TInt KReadTimeout=10;		// Is in seconds

//

// Macro for logging text to the log file using the local class name and a simpler 

// call style.

#ifdef __LOGDEB__

_LIT8(KLogEntry,"CATGprsContextDelete::%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

/**

 * @file

 * AT state machine which will send AT+CGDCONT=x to delete a context from the phone.

 */

CATGprsContextDelete* CATGprsContextDelete::NewL(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals )

/**

 *  Factory function.

 */

	{

	CATGprsContextDelete* p =new(ELeave) CATGprsContextDelete(aIo, aTelObject, aInit, aPhoneGlobals);

	CleanupStack::PushL(p);

	p->ConstructL();			// We call this to allow our base class to construct

	CleanupStack::Pop();

	return p;

	}

CATGprsContextDelete::CATGprsContextDelete(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals)

											: CATCommands(aIo, aTelObject, aInit, aPhoneGlobals) 

/**

 * C++ constructor.

 */

	{

	}

CATGprsContextDelete::~CATGprsContextDelete()

/**

 * C++ Destructor.

 */

	{

	iIo->RemoveExpectStrings(this);

	}

void CATGprsContextDelete::Stop(TTsyReqHandle /*aTsyReqHandle*/)

/**

 * This function called by CATCommands to cancel an AT command state machine.

 * This AT command state machine can not be cancelled.

 */

	{

	LOCAL_LOGTEXT("Stop","Enter function");

	LOCAL_LOGTEXT("Stop","This functionality is not supported");

	}

void CATGprsContextDelete::Start(TTsyReqHandle aTsyReqHandle, TAny* aDummy)

/**

 * Starting of the state machine.

 *

 * This will be called by CATCommands::ExecuteCommand to start the sending

 * of the AT commands.

 */

	{

	LOCAL_LOGTEXT("Start","Enter function");

	const TInt index=*(static_cast<TInt*>(aDummy));

	LOGTEXT2(_L8("index=%d"),index);

	iReqHandle=aTsyReqHandle;

	//

	// Send the AT+CGDCONT=x command to the phone

	iTxBuffer.Format(KDeleteContextCommand,index);

	iIo->Write(this,iTxBuffer);

	iIo->SetTimeOut(this,KWriteTimeout);

	iState=EWaitForWrite;

	}

void CATGprsContextDelete::EventSignal(TEventSource aSource)

/**

 * Main part of the state machine

 */

	{

	LOCAL_LOGTEXT("EventSignal","Enter function");

	if (aSource==ETimeOutCompletion)

		{

		LOCAL_LOGTEXT("EventSignal","Timeout error");

		Complete(KErrTimedOut,aSource); 

		return;

		}

	switch(iState)

		{

	case EWaitForWrite:

		__ASSERT_DEBUG(aSource==EWriteCompletion,Panic(EATCommand_IllegalCompletionWriteExpected));

		iIo->WriteAndTimerCancel(this);

		StandardWriteCompletionHandler(aSource,KReadTimeout);

		iState=EWaitForRead;

		break;

	case EWaitForRead:

		__ASSERT_DEBUG(aSource==EReadCompletion,Panic(EATCommand_IllegalCompletionWaitExpected));

		iIo->WriteAndTimerCancel(this);

		// There is no need to validate the response from the modem

		// as we are going to ignore it anyway.

		Complete(KErrNone,aSource);

		break;

		case EIdle:	

			break;

		}

	}

void CATGprsContextDelete::CompleteWithIOError(TEventSource aSource,TInt aStatus)

/**

 * This Function completes the command from the client with an error.

 */

	{

	Complete(aStatus,aSource);

	}

void CATGprsContextDelete::Complete(TInt aError,TEventSource aSource)

	{

	LOCAL_LOGTEXT("Complete","Enter function");

	if(aError==KErrNone)

		{

		//

		// Mark the context as deleted in the TSY

		CGprsContext* contextPtr=static_cast<CGprsContext*>(iTelObject);

		RPacketService::TContextInfo contextInfo;

		contextPtr->ContextInfo(&contextInfo);

		contextInfo.iStatus = RPacketContext::EStatusDeleted;

		contextPtr->SetContextInfo(&contextInfo);

		//

		// Update the notifications 

		iPhoneGlobals->iNotificationStore->CheckNotification(iTelObject, EPacketContextStatusChanged);

		}

	//

	// Cleanup the CATIO stuff

	RemoveStdExpectStrings();		// We have to call this to ensure iOKExpectString & iErrorExpectString are NULLed

	iIo->WriteAndTimerCancel(this);

	iIo->RemoveExpectStrings(this);

	//

	// Allow base class chance to start of AT commands and complete our client request

	CATCommands::Complete(aError,aSource);

	iTelObject->ReqCompleted(iReqHandle, aError);

	iState = EIdle;

	}