// Copyright (c) 2000-2009 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 "watcherbase.h"

// System includes

 #include <commsdattypesv1_1.h>

 #include <commsdat_partner.h>

 #include <sacls.h>

 using namespace CommsDat;

// User includes

#include "phoneonoff.h"

// Constants

const TInt KOneSecond = 1000000;

//

// ------> Global exports

//

//

// ------> CWatcherBase (source)

//

EXPORT_C CWatcherBase::CWatcherBase(TInt aPriority)

:	CActive(aPriority)

	{

	CActiveScheduler::Add(this);

#ifdef WATCHER_TESTING    

    //-- this section of code is used by TE_TelWatchers(Unit) test 

	TTime now;

	now.UniversalTime();

	TheSeed = now.Int64();

    //-- define properties for test purposes

    //-- For debugging purposes only, used by TE_TelWatchers(Unit).

    //- this property change (to any value) informs that CTelPhoneWatcher has re-read modem table from commdb in

    //- CTelPhoneWatcher::DoRetrieveTSYNameL(). 

    RProperty::Define(KUidSystemCategory, KUidTestProp_ModemTableRefreshed.iUid, RProperty::EInt);  

    //- this property changes in CTelPhoneWatcher::HandleModemChangedL()

    //- when the commsdb modem record has changed

    RProperty::Define(KUidSystemCategory, KUidTestProp_ModemRecordChanged.iUid, RProperty::EInt);

    //-- this property is used in CIndicatorWatcher::HandleIndicatorUpdateL()

    //-- to simulate call state change by t_watchers test

    RProperty::Define(KUidSystemCategory, KUidTestProp_CallStateChange.iUid, RProperty::EInt);

    //-- this property is used to disable and reset phone watchers

    RProperty::Define(KUidSystemCategory, KUidTestProp_WatchersDisable.iUid, RProperty::EInt);    

#endif

	}

EXPORT_C CWatcherBase::~CWatcherBase()

	{

	Cancel();

	iTimer.Close();

	iPhonePowerProperty.Close();

	}

EXPORT_C void CWatcherBase::ConstructL()

	{

	User::LeaveIfError(iTimer.CreateLocal());

	User::LeaveIfError(iPhonePowerProperty.Attach(KUidSystemCategory, KUidPhonePwr.iUid));    

	// This starts the whole ball rolling

	RequestNextState();

	}

//

//

//

EXPORT_C void CWatcherBase::SuspendFor(TInt aTimeInSeconds)

	{

	TTimeIntervalMicroSeconds32 timeToSuspendFor = aTimeInSeconds * KOneSecond;

	iTimer.After(iStatus, timeToSuspendFor);

	State() = EBaseStateSuspending;

	SetActive();

	}

	{

	State() = EBaseStateDisabled;

	}

EXPORT_C void CWatcherBase::RequestNextState()

	{

	if	(State() != EBaseStateDisabled)

		{

		TRequestStatus* status = &iStatus;

		User::RequestComplete(status, KErrNone);

		SetActive();

		}

	}

EXPORT_C void CWatcherBase::WaitForPhoneToPowerUpL()

//

//	The phone is currently turned off. We must wait for it to be turned back on

//	again before the watchers can continue.

//

	{

	TInt val;	

	__ASSERT_DEBUG(!IsActive(), WatcherBasePanic(EUnexpectedActiveState));

	Cancel();

	//-- Subscribe to phone power state change property and wait until it changes

	iPhonePowerProperty.Subscribe(iStatus);

	// Update our state

	State() = EBaseStateWaitingForPhoneToPowerUp;

	// Set us ready to go again

	SetActive();    

	User::LeaveIfError(iPhonePowerProperty.Get(val));

	if (val != ESAPhoneOff)

		{//-- phone is already ON, complete request so that we go to RunL without waiting

		iPhonePowerProperty.Cancel();        

		}

	}

//

//

//

EXPORT_C void CWatcherBase::RunL()

	{

	switch(State())

		{

	case EBaseStateConnectingToPropertyNotifier:		

		// Virtual function call back, for any subclasses that need to implement

		// any special stuff.

		HandleConnectionToChangeNotifierEstablishedL();

		// Move to next state

		State() = EBaseStatePassive;

		RequestNextState();

		break;

	case EBaseStateWaitingForPhoneToPowerUp:

		// We were waiting for the phone to become available again. We now must restart

		// this watcher from scratch.

        //--  phone power state has changed (it must be turned ON)

        //--  retrieve its state and check.

        TInt val;

        User::LeaveIfError(iPhonePowerProperty.Get(val));

        if (val == ESAPhoneOn)

        {   //-- everything OK, the phone has been turned ON, restart this watcher from scratch.

            State() = EBaseStateConnectingToPropertyNotifier;

            RequestNextState();

        }

        else

        {   //-- strange situation, we were waiting for phone On and it now Off, try to wait again

            WaitForPhoneToPowerUpL();

        } 		

		break;

	case EBaseStateSuspending:

		State() = EBaseStatePassive; // Fall through

	case EBaseStatePassive: // In passive mode, so just call framework function

		HandleStateEventL(iStatus.Int());

		break;

	default:

	case EBaseStateDisabled:

		__ASSERT_DEBUG(0, WatcherBasePanic(EUnexpectedState));

		}

	}

EXPORT_C void CWatcherBase::DoCancel()

	{

	switch(State())

		{	

	case EBaseStateSuspending:

		// Cancel outstanding timer

		iTimer.Cancel();

		break;

	case EBaseStateWaitingForPhoneToPowerUp:

		// Cancel outstanding asynchronous request

		iPhonePowerProperty.Cancel();

		break;

	default:

	case EBaseStatePassive:

	case EBaseStateConnectingToPropertyNotifier:

	case EBaseStateDisabled:

		break;

		}

	// Let other sub classes cancel their requests

	HandleCancel();

	}

//

//	Called when RunL (or a sub-function there-of) leaves.

//

	{

	// Should never be called from outside the framework

	__ASSERT_DEBUG(!IsActive(), WatcherBasePanic(EUnexpectedActiveState));

	Cancel();

	// Reset all resources in this, and the derrived class so that

	// we can start up again (from scratch) (virtual function).

	if	(State() == EBaseStatePassive)

		Reset();

	// Close our resources

	iPhonePowerProperty.Close();

	// NOTE: we don't close the timer. This was opened in ConstructL so

	// we can't close that here.

	// Have we already tried this too many times?

	if	(ErrorCountIncrement() >= KErrorRetryCount)

		{

		// We've tried to resume 3 times already and we've still not managed. Give up

		// now until a reboot.

		SetDisabled(_L("WatcherBase : RunError called too many times in succession"), KErrNone);

		}

	else

		{

		// Put us in the start up state again

		State() = EBaseStateConnectingToPropertyNotifier;

		RequestNextState();

		}

	return KErrNone;

	}

//

// Panic Function

//

void CWatcherBase::WatcherBasePanic(TWatcherPanic aPanicNumber)

	{

	_LIT(panicText,"Watcher Base");

	User::Panic(panicText,aPanicNumber);

	}

//

// ------> CPhoneWatcher (source)

//

EXPORT_C CPhoneWatcher::CPhoneWatcher(TInt aPriority)

:	CWatcherBase(aPriority)

	{

	}

EXPORT_C CPhoneWatcher::~CPhoneWatcher()

	{

	delete iModemChangeObserver;

	delete iPhoneWait;

	Phone().Close();

	ETel().Close();

	}

EXPORT_C void CPhoneWatcher::ConstructL()

	{

	CWatcherBase::ConstructL();

	}

//

//

//

EXPORT_C void CPhoneWatcher::HandleStateEventL(TInt aCompletionCode)

	{

	switch(PhoneState())

		{

	case EPhoneStateRetrievingTsyName:

		// Cconstruct observers

		if	(!iPhoneWait)

			{

			iPhoneWait = new(ELeave) CPhoneOnOff(*this);

			iPhoneWait->ConstructL();

			}

		if	(!iModemChangeObserver)

			{

			iModemChangeObserver = new(ELeave) CModemChangeObserver(*this);

			iModemChangeObserver->ConstructL();

			}

		User::LeaveIfError(RetrieveTSYName());

		PhoneState() = EPhoneStateConnectingToETel;

		RequestNextState();

		break;

	case EPhoneStateConnectingToETel:

		User::LeaveIfError(ConnectToETelServer());

		PhoneState() = EPhoneStateLoadingPhoneModule;

		RequestNextState();

		break;

	case EPhoneStateLoadingPhoneModule:

		User::LeaveIfError(LoadPhoneModule());

		PhoneState() = EPhoneStateConnectingToPhone;

		RequestNextState();

		break;

	case EPhoneStateConnectingToPhone:

		User::LeaveIfError(ConnectToPhone());

		PhoneState() = EPhoneStatePassive;

		RequestNextState();

		break;

	case EPhoneStatePassive:

		HandlePhoneStateEventL(aCompletionCode);

		break;

	default:

		__ASSERT_DEBUG(0, WatcherBasePanic(EUnexpectedState));

		}

	}

EXPORT_C void CPhoneWatcher::Reset()

	{

	// Ensures CModemChangeObserver object stops running

	if (iModemChangeObserver)

		{

		iModemChangeObserver->Cancel();

		}

	if	(PhoneState() == EPhoneStatePassive)

		{

		// Get children to release any resources they have

		ReleasePhoneResources();

		}

	// Close our connections to the phone & ETel

	Phone().Close();

	ETel().Close();

	// Reset state

	PhoneState() = EPhoneStateRetrievingTsyName;

	}

//

//

//

TInt CPhoneWatcher::RetrieveTSYName()

	{

	TRAPD(error, DoRetrieveTSYNameL());

	return error;

	}

TInt CPhoneWatcher::ConnectToETelServer()

	{

	return ETel().Connect();

	}

TInt CPhoneWatcher::LoadPhoneModule()

	{

	return ETel().LoadPhoneModule(iTSYName);

	}

TInt CPhoneWatcher::ConnectToPhone()

	{

	TInt error;

	RTelServer::TPhoneInfo phoneInfo;

	// Get the number of phones

	TInt phoneCount = 0;

	error = ETel().EnumeratePhones(phoneCount);

	if	(error < KErrNone)

		{

		return error;

		}

	// Iterate through all the phones

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

		{

		// Get the TSY name for the phone

		TName matchTsyName;

		error = ETel().GetTsyName(i, matchTsyName);

		if	(error < KErrNone)

			{

			return error;

			}

		// See if the phone belongs to the TSY

		if	(matchTsyName.CompareF(iTSYName) == 0)

			{

			error = ETel().GetPhoneInfo(i, phoneInfo);

			if	(error < KErrNone)

				{

				return error;

				}

			break;

			}

		}

	// Connect to the specified phone

	error = Phone().Open(ETel(), phoneInfo.iName);

	if	(error < KErrNone)

		{

		return error;

		}

	// Indicate we're connected and to move to next state.

	return error;

	}

//

//

//

void CPhoneWatcher::DoRetrieveTSYNameL()

	{

#ifdef SYMBIAN_NON_SEAMLESS_NETWORK_BEARER_MOBILITY

	CMDBSession* db = CMDBSession::NewL(KCDVersion1_2);

#else

	CMDBSession* db = CMDBSession::NewL(KCDVersion1_1);

#endif

	CleanupStack::PushL(db);

	CMDBField<TUint32>* globalSettingsField = new(ELeave) CMDBField<TUint32>(KCDTIdModemPhoneServicesSMS);

	CleanupStack::PushL(globalSettingsField);

	globalSettingsField->SetRecordId(1);

	globalSettingsField->LoadL(*db);

	TUint32 modemId = *globalSettingsField;

	CleanupStack::PopAndDestroy(globalSettingsField);

	CMDBField<TDesC>* tsyField = new(ELeave) CMDBField<TDesC>(KCDTIdTsyName);

	CleanupStack::PushL(tsyField);

	tsyField->SetRecordId(modemId);

	tsyField->SetMaxLengthL(KMaxTextLength);

	tsyField->LoadL(*db);

	iTSYName = *tsyField;

	CleanupStack::PopAndDestroy(tsyField);