/*

* Copyright (c) 2008 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:  Implementation of cell supervisor class

*

*/

#include <lbttriggerconditionarea.h>

#include <lbtgeohybrid.h>

#include "lbtcellsupervisor.h"

#include "lbtlogger.h"

#include "flogger.h"

// CONSTANTS

static const TInt KCellHysterisis = 2;

// ======== MEMBER FUNCTIONS ========

// --------------------------------------------------------------------------

// CLbtCellSupervisor::NewL

// CLbtCellSupervisor instantiation method

// --------------------------------------------------------------------------

//

CLbtCellSupervisor* CLbtCellSupervisor::NewL( TAny* aConstructionParameters, 

                                              CLbtTriggerView* aView,

                                              MLbtStrategyEngineObsrvr* aObserver,

                                              CLbtCellChangeHandler* aCellChangeHandler)

    {

    CLbtCellSupervisor* self = new ( ELeave ) CLbtCellSupervisor();

    CleanupStack::PushL( self );

    self->ConstructL( aConstructionParameters, aView,aObserver,aCellChangeHandler );

    CleanupStack::Pop();

    return self;

    }

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::~CLbtCellSupervisor

// Default destructor

// -----------------------------------------------------------------------------

//

CLbtCellSupervisor::~CLbtCellSupervisor()

    {

    // This is just done as a precautionary measure!

    StopSupervision();

    iRecentlyFiredTriggerArray.Close();

    delete iCellSupervisorTimer;

    }	

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::CLbtCellSupervisor

// Default destructor

// -----------------------------------------------------------------------------

//

CLbtCellSupervisor::CLbtCellSupervisor()

    {

    }

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::StartSupervision

// 

// -----------------------------------------------------------------------------

//

void CLbtCellSupervisor::StartSupervision()

    {

    FUNC_ENTER("CLbtCellSupervisor::StartSupervision");

    iCellChangeHandler->SetObserver( this );

	}

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::StopSupervision

// -----------------------------------------------------------------------------

//

void CLbtCellSupervisor::StopSupervision()

    {

    FUNC_ENTER("CLbtCellSupervisor::StopSupervision");

    iCellChangeHandler->Remove( this );

    iCellSupervisorTimer->Cancel();

    }

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::SettingsChanged

// -----------------------------------------------------------------------------

//

void CLbtCellSupervisor::SettingsChanged()

    {

    iEngObserver->RetrieveTriggeringSettings( iSettings );

    }

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::Resume

// -----------------------------------------------------------------------------

//

void CLbtCellSupervisor::Resume()

    {

    iRecentlyFiredTriggerArray.Reset();

    FUNC_ENTER("CLbtCellSupervisor::Resume");

    // Iterate through view and all recently fired triggers triggers

    if( iView->CellTriggerCount() )

        {

        iViewIterator.Reset();

        CLbtContainerTriggerEntry* conTrigger;

        TBool isPresent = ETrue;

        while( isPresent )

            {

            conTrigger = NULL;

            TRAP_IGNORE( isPresent = iViewIterator.NextL( conTrigger ) );

            if( conTrigger )

                {

                // Fetch strategy data.

                TStrategyData strategyData = conTrigger->StrategyData();

                // If the fired time is non-zero, add it to recently fired trigger list

                if( strategyData.iFireTime )

                    {

                    }

                }

            }

        }

    iCellChangeHandler->SetObserver( this );

    }

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::Reset

// -----------------------------------------------------------------------------

//

void CLbtCellSupervisor::Reset()

    {

    iRecentlyFiredTriggerArray.Reset();

    }

// -----------------------------------------------------------------------------

// CLbtCellSupervisor::ConstructL

// Symbian 2nd phase constructor.

// -----------------------------------------------------------------------------

//

void CLbtCellSupervisor::ConstructL( TAny* /*aConstructionParameters*/,

                                     CLbtTriggerView* aView,

                                     MLbtStrategyEngineObsrvr* aObserver,

                                     CLbtCellChangeHandler* aCellChangeHandler )

    {

    iEngObserver = aObserver;

	//iEngObserver->RetrieveTriggeringSettings( iSettings );

	iView = aView;

	iCellChangeHandler = aCellChangeHandler;

	iViewIterator = iView->BeginL( CLbtGeoAreaBase::ECellular,CLbtGeoAreaBase::EHybrid );

	iCellSupervisorTimer = CLbtCellSupervisorTimer::NewL( *this );

	}

// ----------------------------------------------------------------------------

// CLbtCellSupervisor::HandleCellChangeEvent

// ----------------------------------------------------------------------------

//

void CLbtCellSupervisor::HandleCellChangeEvent(const TInt aStatus,

                                               const RMobilePhone::TMobilePhoneNetworkInfoV1& aNwInfo,

                                               const RMobilePhone::TMobilePhoneLocationAreaV1& aLocArea)

    {    

    FUNC_ENTER("CLbtCellSupervisor::HandleCellChangeEvent");

    if( KErrNone == aStatus )

	    {

	    // validate network info

		if (aNwInfo.iMode == RMobilePhone::ENetworkModeGsm ||

            aNwInfo.iMode == RMobilePhone::ENetworkModeWcdma)

            {

            TLex lex( aNwInfo.iCountryCode );

            lex.Val( iCurrentCountryCode );

            if( iCurrentCountryCode )

                {

                lex.Assign( aNwInfo.iNetworkId );

                lex.Val( iCurrentNetworkCode );

                if( iCurrentNetworkCode )

                    {

                    if( aLocArea.iLocationAreaCode && aLocArea.iCellId )

                        {

                        iNwInfo = aNwInfo;

		                iLocArea = aLocArea;

		                LOG1("Current cellid:%d", iLocArea.iCellId);

		                TRAP_IGNORE(EvaluateTriggersL());

                        }

                    }

                }

            }

		}

    }

// ----------------------------------------------------------------------------

// CLbtCellSupervisor::EvaluateTriggersL

// ----------------------------------------------------------------------------

//

void CLbtCellSupervisor::EvaluateTriggersL()

    {

    FUNC_ENTER("CLbtCellSupervisor::EvaluateTriggersL");

    CLbtContainerTriggerEntry* conTrigger;

    iViewIterator.Reset();

    while( iViewIterator.NextL( conTrigger ) )

        {

        if( conTrigger )    

            {

            CLbtTriggerEntry* trigger = conTrigger->TriggerEntry();

            if( CLbtTriggerConditionBase::ETriggerConditionArea == 

                                                trigger->GetCondition()->Type() )

                {

                // Area type trigger

                CLbtTriggerConditionArea* triggerConArea = 

                                        static_cast< CLbtTriggerConditionArea* >

                                                ( trigger->GetCondition() );

                if( triggerConArea->TriggerArea()->Type() == CLbtGeoAreaBase::ECellular )

                    {

                    EvalCellularTrigger( conTrigger );

                    }

                else if( triggerConArea->TriggerArea()->Type() == CLbtGeoAreaBase::EHybrid )

                    {

                    EvalHybridTrigger( conTrigger );

                    }

                }

            }

        }

    EstimateSleepInterval();    

    }

// ----------------------------------------------------------------------------

// CLbtCellSupervisor::EvalCellularTrigger

// ----------------------------------------------------------------------------

//

void CLbtCellSupervisor::EvalCellularTrigger( CLbtContainerTriggerEntry* aTrigger )

    {

    FUNC_ENTER("CLbtCellSupervisor::EvalCellularTrigger");    

    CLbtTriggerConditionArea* trgCondition = 

                              static_cast< CLbtTriggerConditionArea* >

                              ( ( aTrigger->TriggerEntry() )->GetCondition() );

    CLbtGeoCell* cellularArea = static_cast< CLbtGeoCell* >

                                               ( trgCondition->TriggerArea() );

    // Fetch strategy data.

    TStrategyData strategyData = aTrigger->StrategyData();

    // Calculate remaining rearm time

    TInt remRearmTime = CalculateRearmTime( strategyData,aTrigger->TriggerEntry()->TimeToRearm());

    // If rearm time is not expired, trigger is not supervised.

    if( remRearmTime > 0 )

        {

        return;        

        }

    LOGSTRING("Trigger:\"%S\" ", &(aTrigger->TriggerEntry()->Name()));

    LOG1("CID:%d", cellularArea->CellId());

    // ENTRY type trigger

    if( CLbtTriggerConditionArea::EFireOnEnter == trgCondition->Direction() )

        {

        TLbtTriggerDataMask dataMask = 0;

        if( CheckForCurrentCGIMatch( cellularArea ) )

            {

            if( EActive == strategyData.iActivityStatus )

                {

                if( aTrigger->ExtendedTriggerInfo()->IsTriggerFireOnCreation() )

                    {

                    LOG("TriggerFireOnCreation");

                    HandleTriggerFired(aTrigger,strategyData,dataMask);                         

                    }

                else

                    {

                    strategyData.iActivityStatus = EInactive;

                    aTrigger->ExtendedTriggerInfo()->SetTriggerFireOnCreation( ETrue );

                    dataMask |= CLbtContainerTriggerEntry::EContainerAttributeIsTriggerFireOnCreation;

                    }

                }

            }

        else

        	{

            LOG("Check Visited Cell Count");

            if( VisitedCellCount( strategyData) <KCellHysterisis )

              	{

                LOG("visit count < Hysteresis");

              	if( iLocArea.iCellId && !FindCellId( strategyData,iLocArea.iCellId )  )

               		{

               		AddCellId( strategyData,iLocArea.iCellId );

               	    if( VisitedCellCount( strategyData) >= KCellHysterisis )

                        {

			            LOG("ACTIVATING TRIGGER !!!!!");		            

                        strategyData.iActivityStatus = EActive;

                        }

                    }

                }

             }

        if(dataMask)

        	{

            // This is dummy position info. It has no significance.

        	TPositionInfo dummy;  

	        iView->UpdateTriggerInfo( CLbtGeoAreaBase::ECellular,dummy, aTrigger, dataMask );

        	}        

        }

    // EXIT Trigger    

    else

        {

        //This is not currently supported.

        }

    aTrigger->SetStrategyData( strategyData );    

    }

// ----------------------------------------------------------------------------

// CLbtCellSupervisor::EvalHybridTrigger

// ----------------------------------------------------------------------------

//

void CLbtCellSupervisor::EvalHybridTrigger( CLbtContainerTriggerEntry* aTrigger )

    {

    FUNC_ENTER("CLbtCellSupervisor::EvalHybridTrigger");    

    CLbtTriggerConditionArea* trgCondition = 

                              static_cast< CLbtTriggerConditionArea* >

                              ( ( aTrigger->TriggerEntry() )->GetCondition() );

    CLbtGeoHybrid* hybridArea = static_cast< CLbtGeoHybrid* >

                                               ( trgCondition->TriggerArea() );

    // Fetch strategy data.

    TStrategyData strategyData = aTrigger->StrategyData();

    // Calculate remaining rearm time

    TInt remRearmTime = CalculateRearmTime( strategyData,aTrigger->TriggerEntry()->TimeToRearm());

    // If rearm time is not expired, skip trigger supervision.

    if( remRearmTime > 0 )

       {

       return;        

       }

    RPointerArray<CLbtGeoAreaBase> hybridArray = hybridArea->HybridArea();

    TBool cellMatch = EFalse;

    for( TInt i=0;i<hybridArray.Count();i++ )

        {

        if( hybridArray[i]->Type() == CLbtGeoAreaBase::ECellular )

            {

            CLbtGeoCell* cellularArea = static_cast<CLbtGeoCell*> ( hybridArray[i] );

            if( CheckForCurrentCGIMatch( cellularArea ) )

                {

                cellMatch = ETrue;

                break;

                }

            }

        }

    // ENTRY type trigger

    if( CLbtTriggerConditionArea::EFireOnEnter == trgCondition->Direction() )

        {

        TLbtTriggerDataMask dataMask = 0;

        if( cellMatch )

            {

            if( EActive == strategyData.iActivityStatus )

                {

                if( aTrigger->ExtendedTriggerInfo()->IsTriggerFireOnCreation() )

                    {

                    LOG("TriggerFireOnCreation");

                    HandleTriggerFired(aTrigger,strategyData,dataMask);                         

                    }

                else

                    {

                    strategyData.iActivityStatus = EInactive;

                    aTrigger->ExtendedTriggerInfo()->SetTriggerFireOnCreation( ETrue );

                    dataMask |= CLbtContainerTriggerEntry::EContainerAttributeIsTriggerFireOnCreation;

                    }

                }

            }

        else

            {

            LOG("Check Visited Cell Count");

            if( VisitedCellCount( strategyData) <KCellHysterisis )

                {

                LOG("visit count < Hysteresis");

                if( iLocArea.iCellId && !FindCellId( strategyData,iLocArea.iCellId )  )

                    {

                    AddCellId( strategyData,iLocArea.iCellId );

                    if( VisitedCellCount( strategyData) >= KCellHysterisis )

                        {

                        LOG("ACTIVATING TRIGGER !!!!!");                    

                        strategyData.iActivityStatus = EActive;

                        }

                    }

                }

             }

        if(dataMask)

            {

            // This is dummy position info. It has no significance.

            TPositionInfo dummy;  

            iView->UpdateTriggerInfo( CLbtGeoAreaBase::ECellular,dummy, aTrigger, dataMask );

            }        

        }

    // EXIT Trigger    

    else

        {

        }

    aTrigger->SetStrategyData( strategyData );

    }

// ----------------------------------------------------------------------------

// CLbtCellSupervisor::CheckForCurrentCGIMatch

// ----------------------------------------------------------------------------

//

TBool CLbtCellSupervisor::CheckForCurrentCGIMatch( CLbtGeoCell* aCellularArea )

    {

    TInt trCountryCode,trNetworkCode;

    TLex lex;

    lex.Assign( aCellularArea->NetworkCountryCode() );

    lex.Val( trCountryCode );

    lex.Assign( aCellularArea->NetworkIdentityCode() );

    lex.Val( trNetworkCode );

    if( aCellularArea->NetworkType() == iNwInfo.iMode &&

        iCurrentCountryCode == trCountryCode  && 

        iCurrentNetworkCode == trNetworkCode &&

        aCellularArea->LocationAreaCode() == iLocArea.iLocationAreaCode &&

        aCellularArea->CellId() == iLocArea.iCellId )

        {

        return ETrue;

        }

    return EFalse;

    }

// ----------------------------------------------------------------------------

// CLbtCellSupervisor::CalculateRearmTime

// ----------------------------------------------------------------------------

//

TInt CLbtCellSupervisor::CalculateRearmTime( TStrategyData& aStrategyData, TInt aTimeToRearm )

    {

    TInt remRearmTime = 0;

    if( aStrategyData.iFireTime )

       {

       TTime triggerFiredTime( aStrategyData.iFireTime );

       TTime currentTime;

       currentTime.UniversalTime();

       TTimeIntervalSeconds interval;

       currentTime.SecondsFrom( triggerFiredTime, interval );    

       remRearmTime = aTimeToRearm - interval.Int();

       if( remRearmTime <= 0 )

           {

           aStrategyData.iFireTime = 0;        

           }

       }

    return remRearmTime;

    }

// ----------------------------------------------------------------------------

// CLbtCellSupervisor::HandleTriggerFired

// ----------------------------------------------------------------------------

//

void CLbtCellSupervisor::HandleTriggerFired( CLbtContainerTriggerEntry* aTrigger, TStrategyData& aStrategyData, 

                                                        TLbtTriggerDataMask& aDataMask )

	{

	FUNC_ENTER("CLbtCellSupervisor::HandleTriggerFired");

	aTrigger->ExtendedTriggerInfo()->SetTriggerFiredState( ETrue );

    TLbtTriggerFireInfo triggerFireInfo;

    triggerFireInfo.iAreaType = CLbtGeoAreaBase::ECellular;

    triggerFireInfo.iTriggerId = aTrigger->TriggerEntry()->Id();

    LOG("Trigger fired:");

    LOG1("%d",aTrigger->TriggerEntry()->Id());                        

    aTrigger->ExtendedTriggerInfo()->SetFiredInfo( triggerFireInfo );

    // Time at which trigger fired

    TTime triggerFiredTime;

    triggerFiredTime.UniversalTime();

    aDataMask |= CLbtContainerTriggerEntry::EContainerAttributeIsFired | 

	    		 CLbtContainerTriggerEntry::EContainerAttributeFireInfo;

    aStrategyData.iFireTime =  triggerFiredTime.Int64();

    // Set trigger to inactive state

    aStrategyData.iActivityStatus = EInactive;

    ClearVisitedCellInfo( aStrategyData );

    // Append this trigger to recently fired trigger