/*

* 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:   This is default implementation class for CMusAvaInterface

*

*/

#include "musavadefaultimp.h"

#include "musavaavailabilityobserver.h"

#include "musavaobserver.h"

#include "musavasettingsimp.h"

#include "musavasharedobject.h"

#include "muslogger.h"

#include "musavainvitehandler.h"

#include "musavanetworkavailability.h"

#include "musavacontactavailability.h"

#include "musavaconnectionavailability.h"

#include "musavaregisteravailability.h"

#include "musavaoptionhandler.h"

#include "musavadefaultoptionhandler.h"

#include "musavasipprofileavailability.h"

#include "musavasettingavailability.h"

#include "mussesseioninformationapi.h"

#include <e32property.h>

const MMusAvaObserver::TAvailabilityName KMinimumAvailability

    = MMusAvaObserver::EMusAvaBearerStatus;

const MMusAvaObserver::TAvailabilityName KMandatoryAvailability

    = MMusAvaObserver::EMusAvaNameRegistration;

const MMusAvaObserver::TAvailabilityName KExtensionAvailability

    = MMusAvaObserver::EMusAvaOptionHandler;

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

// Two-phased constructor.

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

//

CMusAvaDefaultImp* CMusAvaDefaultImp::NewL()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaDefaultImp::NewL" )

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

    CleanupStack::PushL (self);

    self->ConstructL();

    CleanupStack::Pop( self );

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::NewL" )

    return self;

    }

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

// C++ destructor.

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

//

CMusAvaDefaultImp::~CMusAvaDefaultImp()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaDefaultImp::~CMusAvaDefaultImp" )

    this->Stop();

    iAvailabilities.ResetAndDestroy();

    delete iSettings;

    iSettings = NULL;

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::~CMusAvaDefaultImp" )

    }

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

// Symbian second-phase constructor.

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

//

void CMusAvaDefaultImp::ConstructL()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaDefaultImp::ConstructL" )

    iSettings = CMusAvaSettingsImp::NewL();

    CreateAvailabilityModulesL();

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::ConstructL" )

    }

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

// C++ Constructor

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

//

CMusAvaDefaultImp::CMusAvaDefaultImp()

    :iObserver( NULL ),

    iCurrentAvailability( MMusAvaObserver::EMusAvaNameNotDefined ),

    iAvailabilityStatus ( MMusAvaObserver::EMusAvaStatusNotExecuted ),

    iStopping( EFalse ),

    iExecuteStarted( EFalse )

    {

    }

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

// Creates concrete factory and all availability objects

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

//

void CMusAvaDefaultImp::CreateAvailabilityModulesL()

    {

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

        CreateAvailabilityModulesL" )

    if ( iAvailabilities.Count() )

        {

        Stop();

        iAvailabilities.ResetAndDestroy();

        }

    /* We need handlers all the time to respond incoming Invite/Options 

       So construct this modules first.

    */

    ConstuctHandlerAvailabilityModulesL();

    /* We must check the static availability modules like sipprofile 

       mus activation settings. if this fails then this 

       will be fatal and no need to go and construct further.

    */

    ConstructStaticAvailabilityModulesL();

    /* Check the handler and static availability modules are OK . If it is not

     * OK then dont need to create further availability modules.

     */

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

        {

        if ( !iAvailabilities[i]->Available())

            {

            MUS_LOG1( "mus: [MUSAVA]  <- CMusAvaDefaultImp:: \

                      CreateAvailabilityModulesL Fails! Module = %d ",i )

            return ;

            }

        }    

    /* This should construct modules in where availability could change 

     * dynamically such as network,bearer and call status etc.    

     */

    ConstructDynamicAvailabilityModulesL();

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

        CreateAvailabilityModulesL" )

    }

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

// Creates concrete standard availability objects

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

//

void CMusAvaDefaultImp::ConstuctHandlerAvailabilityModulesL()

    {

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

                                        ConstuctHandlerAvailabilityModulesL" )

    CMusAvaInviteHandler* inviteHandler = CMusAvaInviteHandler::NewLC(

                                                           *this, *iSettings ) ;

    iAvailabilities.AppendL( inviteHandler );

    CleanupStack::Pop( inviteHandler );    

    CMusAvaDefaultOptionHandler* defaultOptionHandler =

                            CMusAvaDefaultOptionHandler::NewLC( *this, *iSettings );

	iAvailabilities.AppendL( defaultOptionHandler );

    CleanupStack::Pop( defaultOptionHandler );

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

        ConstuctHandlerAvailabilityModulesL" )

    }

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

// Creates concrete standard availability objects

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

//

void CMusAvaDefaultImp::ConstructStaticAvailabilityModulesL()

    {

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

                                            ConstructStaticAvailabilityModulesL" )

    /* Mus Activation Settings */

    CMusAvaSettingAvailability* settingAvailability =

                            CMusAvaSettingAvailability::NewLC( *this );

	iAvailabilities.AppendL( settingAvailability );

    CleanupStack::Pop( settingAvailability );

    /* Existence of Sip profile */

    CMusAvaSipprofileAvailability* sipprofileExist =

                            CMusAvaSipprofileAvailability::NewLC( *this ) ;

    iAvailabilities.AppendL( sipprofileExist );

    CleanupStack::Pop( sipprofileExist );

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

                                            ConstructStaticAvailabilityModulesL" )

    }

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

// Creates concrete standard availability objects

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

//

void CMusAvaDefaultImp::ConstructDynamicAvailabilityModulesL()

    {

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

                                           ConstructDynamicAvailabilityModulesL" )       

    // Create network availability

    CMusAvaNetworkAvailability* networkAvailability =

                            CMusAvaNetworkAvailability::NewLC( *this, *iSettings ) ;

    iAvailabilities.AppendL( networkAvailability );

    CleanupStack::Pop( networkAvailability );

    // Contact availability

    CMusAvaContactAvailability* contactAvailability = 

                            CMusAvaContactAvailability::NewLC( *this, *iSettings );

    iAvailabilities.AppendL( contactAvailability );

    CleanupStack::Pop( contactAvailability );

    //Connection monitor

    CMusAvaConnectionAvailability* connectionAvailability =

                          CMusAvaConnectionAvailability::NewLC( *this, *iSettings );

    iAvailabilities.AppendL( connectionAvailability );

    CleanupStack::Pop( connectionAvailability );

    // Create register availability

    CMusAvaRegisterAvailability* registerAvailability = 

                            CMusAvaRegisterAvailability::NewLC( *this, *iSettings );

    iAvailabilities.AppendL( registerAvailability );

    CleanupStack::Pop( registerAvailability );

    // Extension availabilities ->

    // Create SIP options availability

    CMusAvaOptionHandler* optionHandler = 

                                  CMusAvaOptionHandler::NewLC( *this, *iSettings );

    iAvailabilities.AppendL( optionHandler );

    CleanupStack::Pop( optionHandler );

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::ConstructDynamicAvailabilityModulesL" )

    }

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

// Create work for executing availability report.

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

//

void CMusAvaDefaultImp::ExecuteAvailablitityModules()

    {

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

        ExecuteAvailablitityModules" )

    iExecuteStarted = ETrue;

    TBool goOn = ETrue;

    for ( TInt i = 0; i < iAvailabilities.Count() && goOn; i++ )

        {

        if ( !iAvailabilities[i]->Available() &&  

            !iAvailabilities[i]->Executing())

            {

            iAvailabilities[i]->Execute();

            if ( iAvailabilities[i]->State() < MMusAvaObserver::EMusAvaStatusInProgress )

                {

                goOn = EFalse;

                }

            }

        }

    iExecuteStarted = EFalse;

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

        ExecuteAvailablitityModules" )

    }

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

// Retuns setting interface for the client.

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

//

MMusAvaSettings& CMusAvaDefaultImp::Settings()

    {

    return *iSettings;

    }

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

// Set Observer interface for the client.

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

//

void CMusAvaDefaultImp::SetObserver( MMusAvaObserver& aObserver )

    {

    iObserver = &aObserver;

    }

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

// Set MMusAvaSettingsObserver interface for the client.

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

//

void CMusAvaDefaultImp::SetSettingsObserver( MMusAvaSettingsObserver& aObserver )

    {

    iSettings->SetObserver( aObserver );

    }

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

// Requests the implementation to start to investigate availabilites.

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

//

void CMusAvaDefaultImp::StartL()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaDefaultImp::StartL" )

    ExecuteAvailablitityModules();

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::StartL" )

    }

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

// Requests the implementation to stop investigating or monitoring availabilites

// for the client.

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

//

void CMusAvaDefaultImp::Stop()

    {

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

    iStopping = ETrue;

    for ( TInt i = iAvailabilities.Count() - 1; i >= 0; i-- )

        {

        if ( iAvailabilities[i]->State() > MMusAvaObserver::EMusAvaStatusNotExecuted )

            {

            iAvailabilities[i]->Stop();

            }

        }

    CalculateAvailability();

    iStopping = EFalse;

    if ( iObserver )

        {

        iObserver->AvailabilityChanged(

            CurrentAvailability(),

            AvailabilityStatus() );

        }

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

    }

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

//  Availability report.

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

//

void CMusAvaDefaultImp::AvailabilityChanged(

    MMusAvaObserver::TAvailabilityName aName,

    MMusAvaObserver::TAvailabilityStatus aStatus )

    {

    MUS_LOG2( "mus: [MUSAVA]  -> CMusAvaDefaultImp::AvailabilityChanged(%d,%d)",

        aName, aStatus )

    CalculateAvailability();

    if ( iObserver )

        {

        iObserver->AvailabilityChanged( aName, aStatus );

        }

    if ( !iStopping && aStatus >= MMusAvaObserver::EMusAvaStatusNotExecuted )

        {

        if ( !iExecuteStarted )

            {

            ExecuteAvailablitityModules();

            }

        }

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::AvailabilityChanged()" )

    }

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

//  Availability error.

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

//

void CMusAvaDefaultImp::AvailabilityError(

    MMusAvaObserver::TAvailabilityName aName,

    MMusAvaObserver::TAvailabilityStatus aStatus )

    {

    MUS_LOG2( "mus: [MUSAVA]  -> CMusAvaDefaultImp::AvailabilityError\

        ( %d, %d)", aName, aStatus )

    CalculateAvailability();

    if ( iObserver )

        {

        iObserver->AvailabilityError( aName, aStatus );

        }

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::AvailabilityError()" )

    }

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

//  Checks if the current availability is at least the same as given as 

//  parameter

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

//

TBool CMusAvaDefaultImp::Available(

    MMusAvaObserver::TAvailabilityName aAvailability )

    {

    return iCurrentAvailability > aAvailability

      || ( iCurrentAvailability == aAvailability

       	&& MMusAvaObserver::EMusAvaStatusAvailable == iAvailabilityStatus )

      || ( iCurrentAvailability == aAvailability

       	&& ( MMusAvaObserver::EMusAvaStatusOptionsNotSent == iAvailabilityStatus

      	  ||  MMusAvaObserver::EMusAvaStatusOptionsSent == iAvailabilityStatus) );

    }

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

//  Calculates current availability

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

MMusAvaObserver::TAvailabilityStatus CMusAvaDefaultImp::AvailabilityPluginState()

	{

	return iAvailabilityStatus;

	}

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

//  Calculates current availability

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

//

void CMusAvaDefaultImp::CalculateAvailability()

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaDefaultImp::CalculateAvailability()" )

    iCurrentAvailability = MMusAvaObserver::EMusAvaFullAvailability;

    iAvailabilityStatus = MMusAvaObserver::EMusAvaStatusAvailable;    

    TBool goOn = ETrue;

    for ( TInt i = 0; i < iAvailabilities.Count() && goOn; i++ )

        {

        if ( !iAvailabilities[i]->Available() )

            {

            iCurrentAvailability = iAvailabilities[i]->Name();

            iAvailabilityStatus = iAvailabilities[i]->State();

            goOn = EFalse;

            }

        }            

    MUS_LOG2( "mus: [MUSAVA]  Avaialability name and status (%d,%d)",

        iCurrentAvailability, iAvailabilityStatus )

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaDefaultImp::CalculateAvailability()" )

    }

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

//  Current availability

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

//

MMusAvaObserver::TAvailabilityName CMusAvaDefaultImp::CurrentAvailability()

    {

    return iCurrentAvailability;

    }

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

//  Current availability status

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

//

MMusAvaObserver::TAvailabilityStatus CMusAvaDefaultImp::AvailabilityStatus()

    {

    return iAvailabilityStatus;

    }

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

//  Checks if current availability is at least minimum availability

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

//

TBool CMusAvaDefaultImp::MinimumAvailability()

    {

    return iCurrentAvailability > KMinimumAvailability;

    }

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

//  Checks if current availability is at least mandatory availability

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

//

TBool CMusAvaDefaultImp::MandatoryAvailability()

    {

    return iCurrentAvailability > KMandatoryAvailability;

    }

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

//  Checks if current availability is extension availability

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

//

TBool CMusAvaDefaultImp::ExtensionAvailability()

    {

    return iCurrentAvailability > KExtensionAvailability;

    }

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

//  Returns the sate of the given availability

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

//

MMusAvaObserver::TAvailabilityStatus CMusAvaDefaultImp::AvailabilityState(

    MMusAvaObserver::TAvailabilityName aAvailability )

    {

    MUS_LOG1( "mus: [MUSAVA]  -> CMusAvaDefaultImp::AvailabilityState(%d)",

        aAvailability )

    MMusAvaObserver::TAvailabilityStatus retval = 

                                MMusAvaObserver::EMusAvaStatusNotExecuted;

    MMusAvaObserver::TAvailabilityStatus state = 

                                MMusAvaObserver::EMusAvaStatusAvailable;

    for ( TInt i = 0; i < iAvailabilities.Count() 

        && state > MMusAvaObserver::EMusAvaStatusNotExecuted; i++ )

        {

        state = iAvailabilities[i]->State();

        if ( iAvailabilities[i]->Name() == aAvailability )

            {

            retval = iAvailabilities[i]->State();

            }

        }

    MUS_LOG1( "mus: [MUSAVA]  <- CMusAvaDefaultImp::AvailabilityState(%d)",

        retval )

    return retval;

    }