/*

* Copyright (c) 2005 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:    MO event is established.

*

*/

// INCLUDE FILES

#include "mceeventsubscribemoestablishedstate.h"

#include "mcesipeventhelper.h"

#include "mcesip.h"

#include "mceeventslogs.h"

#include <sipcontenttypeheader.h>

#include <sipsubscribedialogassoc.h>

#include <sipdialog.h>

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

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

// CMceEventSubscribeMoEstablishedState::CMceEventSubscribeMoEstablishedState

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

// might leave.

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

//

CMceEventSubscribeMoEstablishedState::CMceEventSubscribeMoEstablishedState()

    {

    }

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

// CMceEventSubscribeMoEstablishedState::~CMceEventSubscribeMoEstablishedState

// Destructor

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

//

CMceEventSubscribeMoEstablishedState::~CMceEventSubscribeMoEstablishedState()

    {

    }

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

// CMceEventSubscribeMoEstablishedState::ProcessSubscribeStateL

// Ápply concrete state.

// Be noticed that it will be also update, unsubscribe

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

//

void CMceEventSubscribeMoEstablishedState::HandleL(CMceComEvent& aEvent )

    {

    MCEEVENTS_DEBUG("CMceEventSubscribeMoEstablishedState::HandleL, Entry");

    User::LeaveIfError( aEvent.SIPEvent().Dialog() ?

        KErrNone : KMceEventStateError );

    User::LeaveIfError( aEvent.SIPEvent().Dialog()->Type() == 

	    SIPStrings::StringF( SipStrConsts::ESubscribe ) ?

	    KErrNone : KMceEventStateError );

    //For MO only send subscribe update and unsubscribe to terminate

    if( aEvent.PreviousAction() == EMceItcSubscribeUpdate )

		{

		//Sending Update with new refresh interval

		//also checking the dialog state->check precondition

		//Updated->headers, contenttype, content

		CSIPMessageElements* message = 

		    MCESIPEventHelper::CreateMessageElementsLC( 

            		                            aEvent,

            		                            SipStrConsts::ESubscribe,

            		                            aEvent.RefreshInterval() );    

		CSIPClientTransaction* transaction = 

		    static_cast< CSIPSubscribeDialogAssoc* >

		    ( aEvent.SIPEvent().Dialog() )->UpdateL( message );

        CleanupStack::Pop( message );

    	CleanupStack::PushL( transaction );

    	aEvent.SIPEvent().SetPendingTransactionL( transaction );

    	CleanupStack::Pop( transaction );

    	//To received 200 OK

    	aEvent.EventContext().SetCurrentStateL( 

    	                                aEvent, 

    	                                KMceEstablishingEventStateIndex );

		}

	else if( aEvent.PreviousAction() == EMceItcTerminateEvent )

		{

		//Send Unsubscribe goes to Terminating state

		//In MoEvent SubscribeDialog Assoc is there

		CSIPMessageElements* message = 

		    MCESIPEventHelper::CreateMessageElementsLC( 

		                                    aEvent,

		                                    SipStrConsts::ESubscribe );

		CSIPClientTransaction* transaction = 

		    static_cast< CSIPSubscribeDialogAssoc* >

		    ( aEvent.SIPEvent().Dialog() )-> SendUnsubscribeL( message );

	    CleanupStack::Pop( message );

	    CleanupStack::PushL( transaction );

		aEvent.SIPEvent().SetPendingTransactionL( transaction );

		CleanupStack::Pop ( transaction );

		aEvent.EventContext().SetCurrentStateL( 

		                                aEvent, 

		                                KMceTerminatingEventStateIndex );

		}

    else

        {

        // Other actions not supported

        User::Leave( KMceEventStateError );

        }

	MCEEVENTS_DEBUG("CMceEventSubscribeMoEstablishedState::HandleL, Exit");        

	}

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

// CMceEventSubscribeMoEstablishedState::HandleReceiveRequestL

// Ápply concrete state.

// Be noticed that it will be also update, unsubscribe

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

//

void CMceEventSubscribeMoEstablishedState::HandleReceiveRequestL(

													CMceComEvent& aEvent )

	{

	MCEEVENTS_DEBUG("CMceEventSubscribeMoEstablishedState::HandleReceiveRequestL, Entry");

	User::LeaveIfError( aEvent.SIPEvent().Dialog() ?

        KErrNone : KMceEventStateError );

	CSIPServerTransaction& serverTran = aEvent.SIPEvent().Request();

	CSIPServerTransaction* serverTranCheck = &serverTran;

    User::LeaveIfError( serverTranCheck ? KErrNone : KMceEventStateError );

    User::LeaveIfError( aEvent.PreviousAction() == KErrNotFound ?

        KErrNone : KMceEventStateError );

    User::LeaveIfError( CSIPDialog::EConfirmed ==

        aEvent.SIPEvent().Dialog()->Dialog().State() ?

        KErrNone : KMceEventStateError );

    User::LeaveIfError( serverTran.RequestElements() ? KErrNone : KErrCorrupt );	    		 

	//Received Notify  form Mt

	//Receiving Notify and Send 200

	//Check the Notify Subscription state so knows which state should go

	//Observer inform the notify received, and Established

	const CSIPMessageElements& msgElem = 

	    serverTran.RequestElements()->MessageElements();

    CSIPResponseElements* response = 

        MCESIPEventHelper::NotifyRequestReceivedLC( aEvent, msgElem );

    if ( response->StatusCode() == KMceSipOK )

    	{

        CDesC8Array* headers = MceSip::UserHeadersToTextArrayL( 

                                    serverTran, 

                                    aEvent.SIPEvent().Dialog()->Dialog() );

        CleanupStack::PushL( headers );

        HBufC8* contenttype = NULL;

        if( msgElem.ContentType() )

    	    {

    	    contenttype= msgElem.ContentType()->ToTextValueL();

    	    }

        CleanupStack::PushL( contenttype );

        HBufC8* content = msgElem.Content().AllocLC();

    	aEvent.SIPEvent().NotifyReceivedL( headers,

    			    					   contenttype,

    									   content );

        CleanupStack::Pop( content );

        CleanupStack::Pop( contenttype );

        CleanupStack::Pop( headers );		

        TBool terminated = EFalse;

        MCESIPEventHelper::HandleSubscriptionStateHeaderL( msgElem, terminated );

        serverTran.SendResponseL( response );

        CleanupStack::Pop( response );

        if ( terminated )

            {

            // when the subscription state is terminated

            //receive notify send 200 OK

            //if we sent notify in terminating,if not should go terminated state

            aEvent.EventContext().SetCurrentStateL( 

                                            aEvent, 

                                            KMceTerminatedEventStateIndex );

            aEvent.SIPEvent().ClientStateChangedL(

                                                CMceEvent::ETerminated,

                                                EFalse );        

            }

        else

            {

            //when subscription state is active

            aEvent.EventContext().SetCurrentStateL( 

                                            aEvent, 

                                            KMceEstablishedEventStateIndex );

            }       

      	}

    else

      	{

        //when the notify request is bad, state doesnt change

        serverTran.SendResponseL( response );

        CleanupStack::Pop( response );

        }

	MCEEVENTS_DEBUG("CMceEventSubscribeMoEstablishedState::HandleReceiveRequestL, Exit");    

	}

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

// CMceEventSubscribeMoEstablishedState::HandleResponseReceivedL

// Ápply concrete state.

// Be noticed that it will be also update, unsubscribe

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

//	

void CMceEventSubscribeMoEstablishedState::HandleResponseReceivedL( 

												CMceComEvent& aEvent )

	{

	MCEEVENTS_DEBUG(

		"CMceEventSubscribeMoEstablishedState::HandleResponseReceivedL, Entry");

	User::LeaveIfError( &aEvent.SIPEvent().Response() ?

	    KErrNone : KMceEventStateError );

    const CSIPResponseElements& response = 

        *aEvent.SIPEvent().Response().ResponseElements();

    const CSIPResponseElements* responseCheck = &response;

    User::LeaveIfError( responseCheck ? KErrNone : KErrCorrupt );

    TUint statusCode = response.StatusCode();

	// Only case when we should come here is when SUBSCRIBE's 200 OK response

	// and the first NOTIFY message have swapped

    if ( statusCode >= KMceSipOK && statusCode < KMceSipMultipleChoices )

	    {

        aEvent.SetPreviousAction( KErrNotFound ); 	    	

	    }

	else 

		{ // Other cases are not allowed

		MCEEVENTS_DEBUG(

			"CMceEventSubscribeMoEstablishedState::HandleResponseReceivedL, LEAVE!");

		User::Leave( KMceEventStateError );	

		}

	MCEEVENTS_DEBUG(

		"CMceEventSubscribeMoEstablishedState::HandleResponseReceivedL, Exit");

	}

//  End of File