/*

* Copyright (c) 2005-2007 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:   Provide interface for the client requestin availability class.

*

*/

#include "musavaregisteravailability.h"

#include "musavaavailabilityobserver.h"

#include "musunittesting.h"

#include "musavaobserver.h"

#include "musavaavailability.h"

#include "musavasharedobject.h"

#include "muslogger.h"

#include "musavasettingsimp.h"

#include "musavasip.h"

#include "musavaconnectionmonitor.h"

#include "mussettings.h"

#include "musavaclientresolverutil.h"

#include <e32base.h>

#include <sipprofile.h>

#include <sipprofileregistry.h>

#include <sipprofileregistryobserver.h>

#include <escapeutils.h>

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

// Symbian two-phase constructor

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

//

CMusAvaRegisterAvailability* CMusAvaRegisterAvailability::NewL(

    MMusAvaAvailabilityObserver& aObserver,

    CMusAvaSettingsImp& aSettings )

    {

    CMusAvaRegisterAvailability* self =

        CMusAvaRegisterAvailability::NewLC(

            aObserver,

            aSettings );

    CleanupStack::Pop( self );

    return self;

    }

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

//  Two-phased constructor.

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

//

CMusAvaRegisterAvailability* CMusAvaRegisterAvailability::NewLC(

    MMusAvaAvailabilityObserver& aObserver,

    CMusAvaSettingsImp& aSettings )

    {

    CMusAvaRegisterAvailability* self =

        new (ELeave) CMusAvaRegisterAvailability(

            aObserver,

            aSettings );

    CleanupStack::PushL (self);

    self->ConstructL();

    return self;

    }

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

//  Destructor.

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

//

CMusAvaRegisterAvailability::~CMusAvaRegisterAvailability()

    {

    if ( iSharedObj )

        {

        iSharedObj->MusAvaSip().RemoveAdapter( *this );

        iSharedObj->DeleteSingleton();

        }

    }

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

// Symbian 2nd phase constructor can leave.

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

//

void CMusAvaRegisterAvailability::ConstructL()

    {

    iSharedObj = CMusAvaSharedObject::GetSingletonL();

    iSharedObj->MusAvaSip().AddAdapterL( *this );

    }

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

//  Constructor.

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

//

CMusAvaRegisterAvailability::CMusAvaRegisterAvailability(

    MMusAvaAvailabilityObserver& aObserver,

    CMusAvaSettingsImp& aSettings )

    :CMusAvaAvailability( aObserver ),

    iSettings( aSettings )

    {

    }

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

// Executes for the master - salve pattern.

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

//

void CMusAvaRegisterAvailability::DoExecuteL()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::DoExecuteL " )

    SetState( MMusAvaObserver::EMusAvaStatusInProgress );

    RegisterL();

    // TBD: SetState( MMusAvaObserver::EMusAvaNameRegistration );

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::DoExecuteL " )

    }

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

// Stop the execution.

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

//

void CMusAvaRegisterAvailability::Stop()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::Stop" )

    CSIPProfile* profile = iSharedObj->MusAvaSip().Profile();

    if ( profile )

        {

        CSIPProfileRegistry* registry = NULL; // not own, so not deleted

        TRAPD( error_register, registry = 

        	&iSharedObj->MusAvaSip().ProfileRegistryL() );

        if ( error_register == KErrNone )

            {

            MUS_LOG( "mus: [MUSAVA]    Sip profile registry found" )

            TInt error = registry->Disable( *profile );

            MUS_LOG1( "mus: [MUSAVA]	Disable Sip profile ( %d )", error )

            }

        }

    SetState( MMusAvaObserver::EMusAvaStatusNotExecuted );

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::Stop" )

    }

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

// CMusAvaRegisterAvailability::Name

//

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

//

MMusAvaObserver::TAvailabilityName CMusAvaRegisterAvailability::Name()

    {

    return MMusAvaObserver::EMusAvaNameRegistration;

    }

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

// An event related to SIP Profile has accorred

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

//

void CMusAvaRegisterAvailability::ProfileRegistryEventOccurred(

                        TUint32 aProfileId,

                        MSIPProfileRegistryObserver::TEvent aEvent)

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::\

             ProfileRegistryEventOccurred " )

    CSIPProfile* profile = iSharedObj->MusAvaSip().Profile();

    if ( !profile )

        {

        MUS_LOG( "mus: [MUSAVA]    no sip profile found, returning!" )

        return;

        }

    TUint32 profileId = 0;

    TUint connectionId = 0;

    profile->GetParameter( KSIPProfileId, profileId );

    if ( aProfileId == profileId )

        {

        switch (aEvent)

            {

            case MSIPProfileRegistryObserver::EProfileCreated:

                {

                MUS_LOG( "mus: [MUSAVA]     Profile is created" )

                MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability\

                        ::ProfileRegistryEventOccurred" )

                }

                break;

            case MSIPProfileRegistryObserver::EProfileUpdated:

                {

                MUS_LOG( "mus: [MUSAVA]     Profile is updated" )

                }

                break;

            case MSIPProfileRegistryObserver::EProfileRegistered:

                {

                MUS_LOG( "mus: [MUSAVA]     Profile is registred" )

                // Make sure that valid connection exists when registered

                CSIPConnection* sipConnection = NULL;

                TRAPD( err, sipConnection = iSharedObj->MusAvaSip().ConnectionL() );

                if ( err != KErrNone || 

                    !sipConnection || 

                     sipConnection->State() == CSIPConnection::EUnavailable ||

                     sipConnection->State() == CSIPConnection::ESuspended ||

                     sipConnection->State() == CSIPConnection::EInactive )

                    {

                    MUS_LOG1( "mus: [MUSAVA]    CreateSIPConnectionL \

                            leave #%d", err )

                    SetState( MMusAvaObserver::MMusAvaObserver::EMusAvaConnectionErr );

                    }

                else

                    {

    				TRAP( err, connectionId =

    					iSharedObj->ConnectionMonitor().ConnectionIDL() );

    	            if ( err == KErrNotFound )

    	            	{

    	            	SetState( MMusAvaObserver::EMusAvaConnectionErr );

    	            	}

    	           	else

    	           		{

    	           		iSharedObj->ConnectionMonitor().SetConnectionID(

    	           										connectionId );

    	           		if( err != KErrNone )

                            {

                            MUS_LOG1( "mus: [MUSAVA]     ConnectionIdL \

                            leave #%d", err )

                            }

                        }

                    }

                MUS_LOG( "mus: [MUSAVA]     Enable profile." )

                TRAP( err, EnableRegisterL() );

                if( err != KErrNone )

                    {

                    MUS_LOG1( "mus: [MUSAVA]     EnableRegisterL leave #%d",

                    err )

                    }

                TRAP( err, CreateSipAddressProposalL(); );

                if( err != KErrNone )

                    {

                    MUS_LOG1( "mus: [MUSAVA]     CreateSipAddressProposalL \

                    err #%d", err )

                    }

                SetState( MMusAvaObserver::EMusAvaStatusAvailable );

                // update sipprofile in settings

                if ( profileId != iSettings.SipProfileId() )

                    {

                    MUS_LOG1( "mus: [MUSAVA]     Profile id in settings before\

                    update:%d", iSettings.SipProfileId() )

                    iSettings.SetSipProfileId( profileId );

                    MUS_LOG1( "mus: [MUSAVA]     Profile id in settings after\

                    update:%d", iSettings.SipProfileId() )

                    }

                else

                    {

                    MUS_LOG( "Profile is not needed to update!!!!!" )

                    }

                }

                break;

            case MSIPProfileRegistryObserver::EProfileDeregistered:

                {

                MUS_LOG( "mus: [MUSAVA]     Profile is deregistered" )

                SetState( MMusAvaObserver::EMusAvaStatusNotRegistered );

                }

                break;

            case MSIPProfileRegistryObserver::EProfileDestroyed:

                {

                MUS_LOG( "mus: [MUSAVA]     Profile is destroyed " )

                SetState( MMusAvaObserver::EMusAvaStatusNotRegistered );

                }

                break;

            default:

                MUS_LOG( "mus: [MUSAVA]     Unknown Profile Id" )

                break;

            }

        }

    else

        {

        MUS_LOG( "mus: [MUSAVA]    aProfileId != profileId" )

        }

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::\

             ProfileRegistryEventOccurred" )

    }

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

// An asynchronous error has occurred related to SIP profile

// Event is send to those observers, who have the

// corresponding profile instantiated.

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

//

void CMusAvaRegisterAvailability::ProfileRegistryErrorOccurred(

    TUint32 aProfileId,

    TInt /* aError */ )

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::\

             ProfileRegistryErrorOccurred" )

    CSIPProfile* profile = iSharedObj->MusAvaSip().Profile();

    if ( !profile )

        {

        return;

        }

    TUint32 profileId;

    profile->GetParameter( KSIPProfileId, profileId );

    if( profileId == aProfileId )

        {

        SetState( MMusAvaObserver::EMusAvaStatusNotRegistered );

        }

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::\

             ProfileRegistryErrorOccurred" )

    }

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

//

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

//

void CMusAvaRegisterAvailability::CreateSipAddressProposalL()

    {

    MUS_LOG( "mus: [MUSAVA] -> CMusAvaRegisterAvailability::\

        CreateSipAddressProposalL() " )

    HBufC* domain = iSharedObj->MusAvaSip().OwnDomainLC();

    const TDesC& telNumber = iSettings.TelNumber();

    iSettings.SetSipAddressProposalL( telNumber, *domain );

    CleanupStack::PopAndDestroy( domain );

    MUS_LOG( "mus: [MUSAVA] <- CMusAvaRegisterAvailability::\

        CreateSipAddressProposalL() " )

    }

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

// Connection state has changed.

// iSipConnection has to be instantiated for us to get these callbacks.

// from base class MSIPConnectionObserver

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

//

TInt CMusAvaRegisterAvailability::ConnectionStateChanged(

    CSIPConnection::TState aState )

    {

    MUS_LOG( "mus: [MUSAVA] -> CMusAvaRegisterAvailability::\

    ConnectionStateChanged" )

    TInt err = 0;

    switch ( aState )

        {

        case CSIPConnection::EInit:

            {

            MUS_LOG( "mus: [MUSAVA] aState == CSIPConnection::EInit" )

            break;

            }

        case CSIPConnection::EActive:

            {

            MUS_LOG( "mus: [MUSAVA] aState == CSIPConnection::EActive" )

            break;

            }

        case CSIPConnection::ESuspended:

            {

            MUS_LOG( "mus: [MUSAVA] aState == CSIPConnection::ESuspended" )

            SetState( MMusAvaObserver::EMusAvaConnectionErr );

            break;

            }

        case CSIPConnection::EInactive:

            {

            MUS_LOG( "mus: [MUSAVA] aState == CSIPConnection::EInactive" )

            // If we get here, then PDP context is probably

            // unavailable => close an existing PDP context.

            MUS_LOG( "mus: [MUSAVA] now calling CloseExistingConnectionL" )

            iSharedObj->ConnectionMonitor().KillPdpContext();

            TRAPD( leaveCode, err = RegisterL() )

            if ( !leaveCode || err )

                {

                SetState( MMusAvaObserver::EMusAvaConnectionErr );

                }

            else

                {

                SetState( MMusAvaObserver::EMusAvaStatusAvailable );

                }

            break;

            }

        case CSIPConnection::EUnavailable:

            {

            MUS_LOG( "mus: [MUSAVA] aState == CSIPConnection::EUnavailable" )

            SetState( MMusAvaObserver::EMusAvaConnectionErr );

            break;

            }

        default:

            {

            MUS_LOG( "mus: [MUSAVA] in default branch => ESipConnUnknown" )

            break;

            }

        }

    MUS_LOG( "mus: [MUSAVA]: <- CMusAvaRegisterAvailability::ConnectionStateChanged" )

    return ETrue;

    }

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

// Initialize SIP Registration.

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

//

TBool CMusAvaRegisterAvailability::InitializeRegister()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::\

              InitializeRegister " )

    MUS_LOG( "mus: [MUSAVA] Create SIP Profile " )

    TBool profileCreated = EFalse;

    TRAPD( err, profileCreated = iSharedObj->MusAvaSip().CreateProfileL() );

    if ( err || !profileCreated )

        {

        MUS_LOG( "mus: [MUSAVA] Profile is not created " )

        MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::\

                  InitializeRegister " )

        SetState( MMusAvaObserver::EMusAvaStatusNoSipProfile );

        return EFalse;

        }

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::\

              InitializeRegister " )

    return ETrue;

    }

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

// SIP Registration.

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

//

TBool CMusAvaRegisterAvailability::RegisterL()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::RegisterL " )

    MUS_LOG( "mus: [MUSAVA]     Checks if the profile is not enabled - \

                 Enable" )

    if ( !InitializeRegister())

        {

        MUS_LOG( "mus: [MUSAVA]  SIP register initilisation fails " )

        MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::\

        Register " )

        return EFalse;

        }

    EnableRegisterL();

   	if ( !UpdateSIPProfile()  )

   		{

   		return EFalse;	

   		}

    return RegistrationStatusL();

    }

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

// Enable SIP Registration.

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

//

void CMusAvaRegisterAvailability::EnableRegisterL()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::EnableRegisterL " )		

 	MUS_LOG( "mus: [MUSAVA]   Fetch SIP ProfileRegistry" )

    CSIPProfileRegistry& registry = iSharedObj->MusAvaSip().ProfileRegistryL();

    MUS_LOG( "mus: [MUSAVA]   Profile status" )

    if ( !registry.IsEnabled( *iSharedObj->MusAvaSip().Profile() ) )

        {

        MUS_LOG("mus: [MUSAVA]     Calling EnableL()" )

        registry.EnableL( *iSharedObj->MusAvaSip().Profile(), 

                        iSharedObj->MusAvaSip().ConnectionObserver() );

        }

    // Try to write client information to CenRep of client resolver.

    // This functionality is needed in __VOIP enabled terminals.

    // In __VOIP disabled builds this will fail because of a lack of needed 

    // CenRep UID. To avoid branching, we just try to do this and let it fail 

    // in normal build.

    CMusAvaClientResolverUtil* resolver = 

                                iSharedObj->MusAvaSip().ClientResolverUtil();

    if ( resolver )

        {

        TRAP_IGNORE( resolver->RegisterClientWithUserL( 

                *iSharedObj->MusAvaSip().Profile() ) )

        }

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaRegisterAvailability::EnableRegisterL " )		

    }

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

// Update SIP Registration.

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

//

TBool CMusAvaRegisterAvailability::UpdateSIPProfile()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaRegisterAvailability::UpdateSIPProfile " )

    TUint32 profileId = 0; // Initial value doesn't matter. 

                           // but better to set it to default profile

    TInt err = iSharedObj->MusAvaSip().Profile()->GetParameter( 

        KSIPProfileId, profileId );

    if( err == KErrNone)

        {

        MUS_LOG1("mus: [MUSAVA]    Set SIP Profile ID in Central Repositary \

            to %d",profileId )