/*

* Copyright (c) 2002 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: 

*     Implements interface for Logs event

*

*/

// INCLUDE FILES

#include <featmgr.h>

#include <charconv.h>

#include "CLogsEngine.h"

#include "CLogsModelFactory.h"

#include "CLogsClearLogFactory.h"

#include "CLogsReaderFactory.h"

#include "CLogsConfigFactory.h"

#include "CLogsGetEventFactory.h"

#include "CLogsSharedDataFactory.h"

#include "CLogsSystemAgentFactory.h"

#include "CLogsEventUpdater.h"

#include "CLogsSMSEventUpdater.h"

#include "CLogsCntLinkChecker.h"

#include "MLogsClearLog.h"

#include "MLogsStateHolder.h"

#include "MLogsReader.h"

#include "MLogsConfig.h"

#include "MLogsGetEvent.h"

#include "MLogsSharedData.h"

#include "MLogsSystemAgent.h"

// #include <TelephonyInternalPSKeys.h> 

// CONSTANTS

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

// CLogsEngine::NewL

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

//

EXPORT_C CLogsEngine* CLogsEngine::NewL()

    {

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

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

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

// CLogsEngine::CLogsEngine

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

//

CLogsEngine::CLogsEngine() 

    {

    }

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

// CLogsEngine::

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

//

EXPORT_C CLogsEngine::~CLogsEngine()

    {

    delete iMainModel;

    delete iReceivedModel;

    delete iDialledModel;

    delete iMissedModel;

    delete iClearLogs;

    delete iSMSUpdater;

    delete iEventUpdater;

    delete iCntLinkChecker;

    delete iConfig;

    delete iGetEvent;    

    delete iLogClient;    

    delete iSharedData;

    delete iSystemAgent;

    delete iConverter;

    delete iClearNewMissed;

    iFsSession.Close();

    }

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

// CLogsEngine::ConstructL

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

//

void CLogsEngine::ConstructL( )

    {

    User::LeaveIfError( iFsSession.Connect() );

    iLogClient = CLogClient::NewL( iFsSession );

    //Texts in LOGWRAP.RLS / LOGWRAP.RSS        

    User::LeaveIfError( iLogClient->GetString( iStrings.iInDirection, R_LOG_DIR_IN ) );

    User::LeaveIfError( iLogClient->GetString( iStrings.iOutDirection, R_LOG_DIR_OUT ) );

    User::LeaveIfError( iLogClient->GetString( iStrings.iMissedDirection, R_LOG_DIR_MISSED ) );

	User::LeaveIfError( iLogClient->GetString( iStrings.iUnKnownNumber, R_LOG_REMOTE_UNKNOWN ) ); //"Unknown" (Logwrap.rls)

    User::LeaveIfError( iLogClient->GetString( iStrings.iInDirectionAlt, R_LOG_DIR_IN_ALT ) );    //"Incoming on alternate line"

    User::LeaveIfError( iLogClient->GetString( iStrings.iOutDirectionAlt, R_LOG_DIR_OUT_ALT ) );

    User::LeaveIfError( iLogClient->GetString( iStrings.iFetched, R_LOG_DIR_FETCHED) );           //"Fetched"

    iSharedData = CLogsSharedDataFactory::SharedDataL();

    //Construct Unicode converter to convert 8-bit strings to 16-bit strings and check to see if the 

    //character set is supported - if not then leave.

    iConverter = CCnvCharacterSetConverter::NewL();

    if (iConverter->PrepareToConvertToOrFromL(KCharacterSetIdentifierIso88591, iFsSession ) 

        != CCnvCharacterSetConverter::EAvailable)

        {

        User::Leave(KErrNotSupported);

        }

    //Contruct system agent immediately

    SystemAgentL();

    }

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

// CLogsEngine::Model

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

//

EXPORT_C MLogsModel* CLogsEngine::Model(TLogsModel aModel) const

    {

    switch( aModel )

        {

        case ELogsMainModel:

            return iMainModel;

            //break;

        case ELogsReceivedModel:

            return iReceivedModel;

            //break;

        case ELogsDialledModel:

            return iDialledModel;

            //break;

        case ELogsMissedModel:

            return iMissedModel;

            //break;

        default:

            return NULL;

            //break;

        }

    }

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

// CLogsEngine::ClearLogsL

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

//

EXPORT_C MLogsClearLog* CLogsEngine::ClearLogsL()

    {

    if( ! iClearLogs )

        {

        iClearLogs = CLogsClearLogFactory::LogsClearLogL( iFsSession, this ); 

        }

    return iClearLogs;

    }

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

// CLogsEngine::ClearNewMissedL

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

//

EXPORT_C MLogsClearNewMissed* CLogsEngine::ClearNewMissedL()

    {

    if( !iClearNewMissed )

        {

        iClearNewMissed = CLogsClearNewMissed::NewL( iFsSession ); 

        }

    return iClearNewMissed;

    }

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

// CLogsEngine::DeleteClearNewMissedL

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

//

void CLogsEngine::DeleteClearNewMissedL()

    {

    delete iClearNewMissed;

    iClearNewMissed = NULL;

    }

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

// CLogsEngine::EventUpdaterL

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

//

EXPORT_C MLogsReader* CLogsEngine::EventUpdaterL()

    {

    if( ! iEventUpdater )

        {

        iEventUpdater = CLogsEventUpdater::NewL( 

                    iFsSession,        

                    this,                                                                

                    CVPbkPhoneNumberMatchStrategy::EVPbkExactMatchFlag  );                                                       

        }

    return iEventUpdater;

    }

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

// CLogsEngine::CntLinkCheckerL

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

//

EXPORT_C CLogsCntLinkChecker* CLogsEngine::CntLinkCheckerL()

    {

    if( ! iCntLinkChecker )

        {

        iCntLinkChecker = CLogsCntLinkChecker::NewL( 

                    iFsSession,        

                    NULL );                                                       

        }

    return iCntLinkChecker;

    }

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

// CLogsEngine::ConfigL

//

// For Log db settings manipulation

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

//

EXPORT_C MLogsConfig* CLogsEngine::ConfigL()

    {

    if( ! iConfig )

        {

        iConfig = CLogsConfigFactory::LogsConfigL( iFsSession ); 

        }

    return iConfig;

    }

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

// CLogsEngine::GetEventL

//

// Reads full Event data for Logs detail view

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

//

EXPORT_C MLogsGetEvent* CLogsEngine::GetEventL()

    {

    if( ! iGetEvent )

        {

        iGetEvent = CLogsGetEventFactory::LogsGetEventL( iFsSession, 

                        iStrings );

        }

    return iGetEvent;

    }

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

// CLogsEngine::SharedDataL

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

//

EXPORT_C MLogsSharedData* CLogsEngine::SharedDataL()

    {

	if ( !iSharedData )

		{

		iSharedData = CLogsSharedDataFactory::SharedDataL();

		}

    return iSharedData;

    }

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

// CLogsEngine::SystemAgentL

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

//

EXPORT_C MLogsSystemAgent* CLogsEngine::SystemAgentL()

    {

    if( ! iSystemAgent )

        {

        iSystemAgent = CLogsSystemAgentFactory::LogsSystemAgentL( NULL, this );

        }

    return iSystemAgent;

    }

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

// CLogsEngine::DeleteGetEvent

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

//

EXPORT_C void CLogsEngine::DeleteGetEvent()

    {

    delete iGetEvent;

    iGetEvent = NULL;

    }

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

// CLogsEngine::DeleteEventUpdater

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

//

EXPORT_C void CLogsEngine::DeleteEventUpdater()

    {

    delete iEventUpdater;

    iEventUpdater = NULL;

    }

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

// CLogsEngine::DeleteCntLinkChecker

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

//

EXPORT_C void CLogsEngine::DeleteCntLinkChecker()

    {

    delete iCntLinkChecker;

    iCntLinkChecker = NULL;

    }

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

// CLogsEngine::DeleteSMSEventUpdater

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

//

EXPORT_C void CLogsEngine::DeleteSMSEventUpdater()

    {

    delete iSMSUpdater;

    iSMSUpdater = NULL;

    }

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

// CLogsEngine::DeleteSystemAgent

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

//

EXPORT_C void CLogsEngine::DeleteSystemAgent()

    {

    delete iSystemAgent;

    iSystemAgent = NULL;

    }

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

// CLogsEngine::DeleteConfig

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

//

EXPORT_C void CLogsEngine::DeleteConfig()

    {

    delete iConfig;

    iConfig = NULL;

    }

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

// CLogsEngine::DeleteClearLog

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

//

EXPORT_C void CLogsEngine::DeleteClearLog()

    {

    delete iClearLogs;

    iClearLogs = NULL;

    }

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

// CLogsEngine::CreateModelL

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

//

EXPORT_C void CLogsEngine::CreateModelL( TLogsModel aModel )

    {

    switch( aModel )

        {

        case ELogsMainModel:

            if( ! iMainModel )

                {

                iMainModel = CLogsModelFactory::ModelL( iFsSession, 

                                        ELogsMainModel, iStrings, this );

                }

            break;

        case ELogsReceivedModel:

            if( ! iReceivedModel )

                {

                iReceivedModel = CLogsModelFactory::ModelL( iFsSession, 

                                        ELogsReceivedModel, iStrings, this  );

                }

            break;

        case ELogsDialledModel:

        if( ! iDialledModel )

                {

                iDialledModel = CLogsModelFactory::ModelL( iFsSession, 

                                        ELogsDialledModel, iStrings, this  );

                }

            break;

        case ELogsMissedModel:

            if( ! iMissedModel )

                {

                iMissedModel = CLogsModelFactory::ModelL( iFsSession, 

                                        ELogsMissedModel, iStrings, this  );

                }

            break;

        default:

            break;

        }

    }

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

// CLogsEngine::StartSMSEventUpdaterL

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

//

EXPORT_C void CLogsEngine::StartSMSEventUpdaterL(  )

    {

    if( ! iSMSUpdater )

        {

		TInt err = KErrNone;

		TRAP( err,	

              iSMSUpdater = CLogsSMSEventUpdater::NewL( 

                      iFsSession, 

                      this, //MLogsObserver

                      CVPbkPhoneNumberMatchStrategy::EVPbkStopOnFirstMatchFlag );

		              // fore SMS event updater we use the same match flag that messaging uses

			  iSMSUpdater->StartL()

			);

		// If there is an error, we can't use CLogsSMSEventUpdater

		// delete and return

		// As the CLogsEngine::StartSMSEventUpdaterL is used in DoActivateL, it's better not to leave, but return

		// since view won't be activated and it will mess up viewstack

		if( err )

			{

			delete iSMSUpdater;

			iSMSUpdater = NULL;

			return;

			}

		User::LeaveIfError( err ); 

		}

    }

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

// CLogsEngine::StateChangedL

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

//

void CLogsEngine::StateChangedL( MLogsStateHolder* aHolder )

    {    

    if( aHolder->State() == EStateClearLogFinished ||

        aHolder->State() == EStateEventUpdaterFinished     )//We have finished deleting/updating an entry in LogDb

        {                                                   //and have to now reread the corresponding view data

                                                            //from db. See also CLogsBaseReader::HandleLogViewChangeEventDeletedL

        // If event updater finished, don't reset the array. 

        // Avoids unnecessary flicker of "Retrieving data" text 

        // since the old list is anyway shown before event reading starts.

        TBool resetArray(ETrue);        

        if ( aHolder->State() == EStateEventUpdaterFinished )

            {

            resetArray = EFalse;

            }

        if( iReceivedModel )

            {

            iReceivedModel->KickStartL( resetArray );//Does nothing if model is deactivated state

            }

        if( iDialledModel )

            {

            iDialledModel->KickStartL( resetArray ); //Does nothing if model is deactivated state

            }

        if( iMissedModel )

            {

            iMissedModel->KickStartL( resetArray );  //Does nothing if model is deactivated state

            }

        }

    //Delete unneeded objects when finished

    if( aHolder->State() == EStateEventUpdaterFinished )

        {

        //FIXME: We cannot do this here because VPbk processing maybe ongoing, this is only

        //ok when all the asyncronous opening processes for Vpbk have completed successfully

        //(see CLogsBaseUpdater::BaseConstructL)

        //DeleteEventUpdater();  

        }

    if( aHolder->State() == EStateClearLogFinished )

        {

        DeleteClearLog(); 

        }

    }

/********************************************

EXPORT_C void CLogsEngine::CreateSharedDataL()

	{

	if ( !iSharedData )

		{

		iSharedData = CLogsSharedDataFactory::SharedDataL();

		}

	}

*********************************************/	

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

// CLogsEngine::FreeResourcesForBGModeL

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

//

EXPORT_C void CLogsEngine::FreeResourcesForBGModeL()

	{

	// Read heap-related statistics for debug use

//	RHeap heap = User::Heap();

//	TInt size1 = heap.Size();

//	TInt bb1;

//	TInt avail1 = heap.Available( bb1 );

//	TInt frees1;

//	TInt count1 = heap.Count( frees1 );

	DeleteClearLog();

	DeleteSMSEventUpdater();

	DeleteEventUpdater();

	DeleteConfig();             //Logs settings 

	DeleteGetEvent();

    DeleteClearNewMissedL();

	User::LeaveIfError( User::CompressAllHeaps() );

	// Read heap-related statistics for debug use

//	TInt size2 = heap.Size();

//	TInt bb2;

//	TInt avail2 = heap.Available( bb2 );

//	TInt frees2;

//	TInt count2 = heap.Count( frees2 );

	}

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

// CLogsEngine::ConvertToUnicode

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

//