/*

* Copyright (c) 2006 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: 

*        Model/Engine for Network Settings Plugin

*

*/

// INCLUDE FILES

#include "GSNetworkPluginModel.h"

#include "GSNetworkPlugin.h"

#include "GsNetworkPlugin.hrh"

#include "GsLogger.h"      //for logging traces

#include <featmgr.h>

#include <barsc.h>

#include <barsread.h>

#include <coecntrl.h>

#include <f32file.h>

#include <AknQueryDialog.h>

#include <s32file.h>

#include <featmgr.h>

#include <PsetCSP.h>

#include <generalsettingsvariant.hrh>

#include <PSVariables.h>  //PubSub

#include <settingsinternalcrkeys.h>

#include "SettingsPrivateCRKeys.h"

#include <LogsDomainCRKeys.h>

#include <PsetContainer.h>

#include <PsetSAObserver.h>  //ongoing call check

#include "GSNetworkDebugHelper.h"

#include <gsnetworkpluginrsc.rsg>           //for resource IDs

#include <mmtsy_names.h>

//CONSTANTS

// default value for network mode change key

const TInt KPowersavingNetworkmodeNoChanged = 0; 

_LIT( KGSNameOfClass, "CGSNetworkPluginModel" );

// Warning disabled as this constant is used inside __ASSERT_DEBUG

#pragma diag_suppress 177

_LIT( KGSNetworkPluginModelAssertName, "CGSNetworkPluginModel::CheckState" );

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

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

// CGSNetworkPluginModel::NewL

//

// Symbian OS two-phased constructor, overloaded version

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

//

CGSNetworkPluginModel* CGSNetworkPluginModel::NewL(

        CGSNetworkPluginContainer* aContainer,

        CGSNetworkPlugin* aPlugin )

    {

    CGSNetworkPluginModel* self = new( ELeave ) CGSNetworkPluginModel(

            aContainer,

            aPlugin );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CGSNetworkPluginModel::CGSNetworkPluginModel

//

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CGSNetworkPluginModel::CGSNetworkPluginModel(

        CGSNetworkPluginContainer* aContainer,

        CGSNetworkPlugin* aPlugin )

    : iNetworkMode( KGSNetworkModeCapsNotUpdated ),

      iContainer( aContainer ), 

      iPlugin( aPlugin ) 

    {

    }

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

// CGSNetworkPluginModel::ConstructL

//

// EPOC default constructor can leave.

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

//

void CGSNetworkPluginModel::ConstructL()

    {

    ConstructBaseItemsL();

    }

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

// CGSNetworkPluginModel::ConstructBaseItemsL

//

// Constructing base items

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

//

void CGSNetworkPluginModel::ConstructBaseItemsL()

    {

    FeatureManager::InitializeLibL();

    InitializeCentralRepositoryL();

    SetCSPActiveL( ETrue );

    iSettingsContainer = CPsetContainer::NewL();

    User::LeaveIfError( iGSVariationRepository->Get(

            KSettingsVariationFlags, iLocalVariationValues ) );

#ifndef __WINS__

    //This is currently not supported by emulator

    CreatePhoneSettingsEngineL();

#endif //__WINS__

    }

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

// CGSNetworkPluginModel::~CGSNetworkPluginModel

//

// Destructor

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

//

CGSNetworkPluginModel::~CGSNetworkPluginModel()

    {

    UninitializeCentralRepository();

    if ( GetCSPStatus() )

        {

        TRAP_IGNORE( SetCSPActiveL( EFalse ) );

        }

    if ( iPhoneSettingsEngine )

        {

        delete iPhoneSettingsEngine;

        }

    if( iSettingsContainer )

        {

        delete iSettingsContainer;

        }

    FeatureManager::UnInitializeLib();

    if ( iContainer )

        {

        iContainer = NULL;

        }

    }

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

// CGSNetworkPluginModel::InitializeCentralRepositoryL

//

// Creating and setting keys for the Central Repository

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

//

void CGSNetworkPluginModel::InitializeCentralRepositoryL()

    {

    iNetworkRepository = CRepository::NewL( KCRUidNetworkSettings );

    iGSVariationRepository = CRepository::NewL( KCRUidSettingsVariation );

    }

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

// CGSNetworkPluginModel::UninitializeCentralRepositoryL

//

// Removes Central Repository objects

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

//

void CGSNetworkPluginModel::UninitializeCentralRepository()

    {

    if ( iNetworkRepository )

        {

        delete iNetworkRepository;

        iNetworkRepository = NULL;

        }

    if ( iGSVariationRepository )

        {

        delete iGSVariationRepository;

        iGSVariationRepository = NULL;

        }

    }

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

// CGSNetworkPluginModel::GetCSPStatus

//

// Get Customer Service Profile status

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

//

TBool CGSNetworkPluginModel::GetCSPStatus()

    {

    if ( iCSP )

        {

        return ETrue;

        }

    else

        {

        return EFalse;

        }

    }

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

// CGSNetworkPluginModel::SetCSPActiveL

//

// Set Customer Service Profile active

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

//

void CGSNetworkPluginModel::SetCSPActiveL( TBool aValue )

    {

    if ( aValue )

        {

        iCSP = CPsetCustomerServiceProfile::NewL();

        User::LeaveIfError( iCSP->OpenCSProfileL() );

        }

    else

        {

        delete iCSP;

        iCSP = NULL;

        }

    }

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

// CGSNetworkPluginModel::IsNetworkModeVisible

//

// Get network mode status value from shared data.

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

//

TBool CGSNetworkPluginModel::IsNetworkModeVisible()

    {

    TBool nwModeAvailable = EFalse;

    TInt value;

    iNetworkRepository->Get( KSettingsNetworkMode, value );

    switch ( value )

        {

        case 1:

            nwModeAvailable = ETrue;

            break;

        case 0:

            nwModeAvailable = EFalse;

            break;

        default:

            break;

        }

    return nwModeAvailable;

    }

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

// CGSNetworkPluginModel::IsSettingSupported

//

// Check if a given setting is supported

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

//

TBool CGSNetworkPluginModel::IsSettingSupported( TInt aSettingNumber )

    {

    __ASSERT_ALWAYS( iCSP != NULL, User::Panic( KGSNameOfClass,

                                   EGSTelPluinModelPanicNullPtr ) );

    TBool settingSupported = EFalse;

    TInt retVal = KErrNone;

    switch ( aSettingNumber )

        {

        case EGSCSPCallForward:

            retVal = iCSP->IsCFSupported( settingSupported );

            break;

        case EGSCSPCallBarring:

            retVal = iCSP->IsCBSupported( settingSupported );

            break;

        case EGSCSPCallWaiting:

            retVal = iCSP->IsCWSupported( settingSupported );

            break;

        case EGSCSPAlternateLine:

            retVal = iCSP->IsALSSupported( settingSupported );

            break;

        case EGSCSPManualNetworkSelection:

            retVal = iCSP->IsNetworkSelectionSupported( settingSupported );

            break;

        default:

            break;

        }

    if ( retVal != KErrNone )

        {

        //if a CSP error occurs, by default service is available

        settingSupported = ETrue;

        }

    return settingSupported;

    }

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

// CGSNetworkPluginModel::GetMCNSettingValue

// Gets MCN setting value

//

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

//

TBool CGSNetworkPluginModel::GetMCNSettingValue( TInt& aId )

    {

    TInt ret = KErrNone;

    ret = iNetworkRepository->Get( KSettingsMcnDisplay, aId );

    return ret;

    }

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

// CGSNetworkPluginModel::SetMCNSettingValue

// Sets MCN setting value

//

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

//

TBool CGSNetworkPluginModel::SetMCNSettingValue( TInt& aId )

    {

    TInt ret = KErrNone;

    ret = iNetworkRepository->Set( KSettingsMcnDisplay, aId );

    return ret;

    }

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

// CGSNetworkPluginModel::GetSupportedNetworksL

//

// Get supported network mode list

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

//

TInt CGSNetworkPluginModel::GetSupportedNetworksL()

    {

    TInt supportedNetworks = KGSSettingOff;

    User::LeaveIfError( iNetworkRepository->

                Get( KSettingsNetworkModeList, supportedNetworks ) );

    return supportedNetworks;

    }

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

// CGSNetworkPluginModel::GraphicalNetworkListSupportedL

//

// Check if graphical network list is supported.

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

//

TBool CGSNetworkPluginModel::GraphicalNetworkListSupportedL()

    {

    TBool supported = EFalse;

    if ( iLocalVariationValues & EGSConfig2G3GNetworkIcon )

        {

        supported = ETrue;

        }

    return supported;

    }

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

// CGSTelPluginModel::AutomaticNetworkSearchSupportedL

//

// Check if automatic to automatic network search is supported.

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

//

TBool CGSNetworkPluginModel::AutomaticNetworkSearchSupportedL()

    {

    TBool supported = EFalse;

    if ( iLocalVariationValues & EGSConfigNoAutoToAutoNetworkSearch )

        {

        supported = ETrue;

        }

    return supported;

    }

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

//

// Sets network mode to member variable.

//

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

//

void CGSNetworkPluginModel::CreatePhoneSettingsEngineL()

    {

    __GSLOGSTRING("[GS]--> CGSNetworkPluginModel::CreatePhoneSettingsEngineL");

    //initialize the phone settings object for network mode

    if ( !iPhoneSettingsEngine )

        {

        iPhoneSettingsEngine = iSettingsContainer->CreateNetworkModeObjectL( *this );

        }

    iPhoneSettingsEngine->SetNetworkModeObserver( *this );

    //CPSMNetworkPlugin will init iPlugin NULL.

    if ( iPlugin == NULL )

    	{

    	// get the current net mode synchronously

    	StartSynGetCurrentNetworkModeSelectionL();

    	}

    else

    	{

    	// get the current net mode asynchronously

    	StartAsynGetCurrentNetworkModeSelectionL();

    	}

    __GSLOGSTRING("[GS] <--CGSNetworkPluginModel::CreatePhoneSettingsEngineL");

    }

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

// CGSNetworkPluginModel::HandleNetworkSystemModeEventsL

//

// Handles Network system mode list fetching from CustomAPI.

// Handles Network system mode setting to CustomAPI.

// Handles current network system mode fetching from CustomAPI.

//

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

//

void CGSNetworkPluginModel::HandleNetworkSystemModeEventsL(

            const MPsetNetworkModeObserver::TServiceRequest aRequest,

            const TUint32 aNetworkModeCaps )

    {

#ifdef _DEBUG

    TBuf<KGSNetworkModeDebugStrLen> requestBuf;

    GSNetworkDebugHelper::NetworkModeRequestToDes( aRequest, requestBuf );

    __GSLOGSTRING1( "[CGSNetworkPluginModel::HandleNetworkSystemModeEventsL] %S ",

                    &requestBuf );

#endif // _DEBUG

    PrintState();

    switch ( aRequest )

        {

        case MPsetNetworkModeObserver::EServiceRequestGetCurrentNetworkMode:

            {

            TBool networkModeChanged = EFalse;

            if( iNetworkMode != aNetworkModeCaps )

                {

                networkModeChanged = ETrue;

                iNetworkMode = aNetworkModeCaps;

                }

            if( networkModeChanged )

                {

                if ( iContainer )

                    {

                    iContainer->UpdateListBoxL( EGSNetworkModeItemId, 0 );

                    }

                // Will update nw setting page in case it is open.

                if ( iPlugin )

                    {

                    iPlugin->UpdateNetworkSettingPageL();

                    }

                }

            }

            break;

        case MPsetNetworkModeObserver::EServiceRequestSetSelectedNetworkMode:

            {

            /**

             * Setting network mode succeeded: update actual mode:

             */

            iNetworkMode = iRequestedNetworkMode;

            /**

             * iNetworkMode should not be updated in case of error.

             * ->update only in this success case.

             *

             * Problem: Currently unclear if aNetworkModeCaps contains 

             * valid cata in this EServiceRequestSetSelectedNetworkMode case.

             * So, cannot update iNetworkMode from aNetworkModeCaps here.

             * Instead use iRequestedNetworkMode manually.

             */

            if( iContainer )

                {

                iContainer->HandleNetworkModeChangeL();

                }

            break;

            }

        default:

            break;

        }

    PrintState();

    }

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

// CGSNetworkPluginModel::HandleNetworkErrorL

//

// From MPsetNetworkModeObserver. This is called if 

// EServiceRequestSetSelectedNetworkMode fails. No need to handle other cases.

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

//

void CGSNetworkPluginModel::HandleNetworkErrorL(

            const MPsetNetworkModeObserver::TServiceRequest aRequest,

            const TInt aError )

    {

#ifdef _DEBUG

    TBuf<KGSNetworkModeDebugStrLen> requestBuf;

    GSNetworkDebugHelper::NetworkModeRequestToDes( aRequest, requestBuf );

    __GSLOGSTRING2( "[CGSNetworkPluginModel::HandleNetworkErrorL] %S error:%d",

                    &requestBuf, aError );

#endif // _DEBUG

    /**

     * Handles failing when setting network mode.

     * Requested mode is stored into a member and actual network mode is updated only

     * when success is reported in HandleNetworkSystemModeEventsL/

     * EServiceRequestSetSelectedNetworkMode.

     */

    switch( aRequest )

        {

        case MPsetNetworkModeObserver::EServiceRequestGetCurrentNetworkMode:

            break;

        case MPsetNetworkModeObserver::EServiceRequestSetSelectedNetworkMode:

            // Hould display error note, iNetworkMode value is still correct as

            // it is not updated in case request failed.

            if ( iPlugin )

                {

                iPlugin->ShowNoteL( R_NO_NETWORK_ACCESS, KGSErrorNote );   

                }

            break;

        default:

            break;

        }

    }

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

// CGSNetworkPluginModel::GetNetworkSelectionMode

//