/*

* Copyright (c) 2008 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: 

*     Main plugin class

*

*/

#include "emailtrace.h"

#include <AlwaysOnlineManagerClient.h>

#include <SendUiConsts.h>

#include <msvids.h>

#include <msvuids.h>

// becuase of RD_IPS_AO_PLUGIN flag, can be removed

// when flag is removed

#include "ipsplgsosbaseplugin.hrh"

#include "IpsSosAOImapPopLogic.h"

#include "IpsSosAOMboxLogic.h"

#include "IpsSosAOEMNResolver.h"

//<QMail>

#include "IpsSosAOSettingsHandler.h"

#include "IpsSosAoExtendedSettingsManager.h"

//</QMail>

#include "ipsplgcommon.h"

//const TInt KAOSmtpStartDelaySeconds = 310;

const TInt KIpsSosAOImapPopLogicDefGra = 1;

//const TInt KIpsSosAoImapPopLogicEventGra = 2;

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

// class CIpsSosAOImapPopLogic

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

//

CIpsSosAOImapPopLogic::CIpsSosAOImapPopLogic( CMsvSession& aSession ) 

    : iSession( aSession ), iMailboxLogics( KIpsSosAOImapPopLogicDefGra ),

    iNoNWOpsAllowed( EFalse )

    {

    FUNC_LOG;

    }

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

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

//

CIpsSosAOImapPopLogic::~CIpsSosAOImapPopLogic()

    {

    FUNC_LOG;

    iMailboxLogics.ResetAndDestroy();

   // iActiveEvents.ResetAndDestroy();

    delete iEmnResolver;

	//<QMail>

	//</QMail>

    }

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

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

//

CIpsSosAOImapPopLogic* CIpsSosAOImapPopLogic::NewL( CMsvSession& aSession )

    {

    FUNC_LOG;

    CIpsSosAOImapPopLogic* self = new (ELeave) CIpsSosAOImapPopLogic(

            aSession );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

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

//

void CIpsSosAOImapPopLogic::ConstructL()

    {

    FUNC_LOG;

    iEmnResolver = CIpsSosAOEMNResolver::NewL();

	//<QMail>

	//</QMail>

    }

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

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

//

TInt CIpsSosAOImapPopLogic::HandleAOServerCommandL( 

    TInt aCommand, TDesC8* aParameters )

    {

    FUNC_LOG;

    TInt result = KErrNone;

    TInt mailboxId = KErrNotFound;

    // Make sure that the parameter length matches Id length

    if ( aParameters && aParameters->Length() == sizeof( TMsvId ) )

        {

        TPckgBuf<TMsvId> paramPack;

        paramPack.Copy( *aParameters );

        // Get the mailbox id from the packet

        mailboxId = paramPack();

        }

    switch ( aCommand )

        {

        case EAOManagerPluginStart:

            RefreshMailboxListL( );

            if ( !iNoNWOpsAllowed )

                {

                SendCommandToMailboxesL( CIpsSosAOMBoxLogic::ECommandStart );

                }

            break;

        case EAOManagerPluginStop:

            SendCommandToMailboxesL( CIpsSosAOMBoxLogic::ECommandStop );

            // Return value does not matter, plugin will be stopped anyway.

            break;

        case EAOManagerNWOpsNotAllowed:

            iNoNWOpsAllowed = ETrue;

            SendCommandToMailboxesL( CIpsSosAOMBoxLogic::ECommandStop );

            break;

        case EAOManagerNWOpsAllowed:

            iNoNWOpsAllowed = EFalse;

            SendCommandToMailboxesL( CIpsSosAOMBoxLogic::ECommandStart );

            break;

        case EAOManagerStartedRoaming:

            SendCommandToMailboxesL( 

                    CIpsSosAOMBoxLogic::ECommandStartedRoaming );

            break;

        case EAOManagerStoppedRoaming:

            SendCommandToMailboxesL( CIpsSosAOMBoxLogic::ECommandStoppedRoaming );

            break;

        case EAOManagerDiskSpaceAboveCritical:

            if ( !iNoNWOpsAllowed )

                {

                SendCommandToMailboxesL( CIpsSosAOMBoxLogic::ECommandStart );

                }

            break;

        case EAOManagerDiskSpaceBelowCritical:

            SendCommandToMailboxesL( CIpsSosAOMBoxLogic::ECommandStop );

            break;

        case EAOManagerSuicideQuery:

            // Always tell to server, that we don't 

            // want to make a suicide.

            result = EFalse;

            break;

        // Mailbox handling

        case EAOManagerMailboxAgentSuspend:

            SendCommandToSpecificMailboxL( mailboxId, 

                    CIpsSosAOMBoxLogic::ECommandStop );

            break;

        case EAOManagerMailboxAgentResume:

            RefreshMailboxListL( );

            if ( !iNoNWOpsAllowed )

                {

                SendCommandToSpecificMailboxL( mailboxId, 

                    CIpsSosAOMBoxLogic::ECommandStart );

                }

            break;

        case EAOManagerMailboxAgentRemove:

            StopAndRemoveMailboxL( mailboxId );

            //cancel all

            break;

        case EAOManagerEMNReceived:

            if ( aParameters )

                {

                HandleEMNMessageL( *aParameters );

                }

            break;

        case EAOManagerMailboxAgentUpdateMailWhileConnected:

            // Not supported atm, was in old plugin Imap-idle

            break;

        case EAOManagerQueryState:

            result = QueryMailboxStatus( *aParameters );

            break;

        case EAOManagerCancelAllAndDisconnect:

            SendCommandToSpecificMailboxL( mailboxId, 

                    CIpsSosAOMBoxLogic::ECommandCancelAndDisconnect );

            break;

        case EAOManagerCancelAllAndDoNotDisconnect:

            SendCommandToSpecificMailboxL( mailboxId, 

                    CIpsSosAOMBoxLogic::ECommandCancelDoNotDiconnect );

            break;

        case EAOManagerSuspend:

            SendCommandToSpecificMailboxL( mailboxId, 

                    CIpsSosAOMBoxLogic::ECommandSuspend );

            break;

        case EAOManagerContinue:

            SendCommandToSpecificMailboxL( mailboxId, 

                    CIpsSosAOMBoxLogic::ECommandContinue );

            break;

        case EAOManagerDoNotDisconnect:

            SendCommandToSpecificMailboxL( mailboxId, 

                    CIpsSosAOMBoxLogic::ECommandDoNotDisconnect );

            break;

        // error in CActiveScheduler

        // EAOManagerAOSchdulerError not handled because 

        // there's no badly behaving active objects

        case EAOManagerAOSchdulerError:

        default:    

            result = KErrNotSupported;

            break;

        }

    return result;

    }

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

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

// 

void CIpsSosAOImapPopLogic::HandleMsvSessionEventL(

     MMsvSessionObserver::TMsvSessionEvent aEvent, 

     TAny* aArg1, TAny* aArg2, TAny* /*aArg3*/ )

    {

    FUNC_LOG;

    switch( aEvent )

        {

        case MMsvSessionObserver::EMsvEntriesCreated:

            break;

        case MMsvSessionObserver::EMsvEntriesChanged:

            {

            TMsvId parent = (*(TMsvId*) (aArg2));

            //we check that parent is the root. if not, it cannot be an 

            //event from service, thus can't be from connection change..

            if ( parent == KMsvRootIndexEntryId )

                {

                const CMsvEntrySelection* selection = 

                    static_cast<CMsvEntrySelection*>( aArg1 );

                TMsvEntry tEntry;

                TMsvId service;

                if ( selection->Count() )

                    {

                    iSession.GetEntry( selection->At(0), service, tEntry );

                    }

                if ( !tEntry.Connected() )

                    {

                    SendCommandToSpecificMailboxL( 

                            tEntry.Id(), 

                            CIpsSosAOMBoxLogic::ECommandClearDoNotDisconnect );

                    }

                }

            }

            break;

        case MMsvSessionObserver::EMsvEntriesDeleted:

            {

            TMsvId parent = (*(TMsvId*) (aArg2));

            //we check that parent is the root. if not, it cannot be an 

            //event indicating deleted mailbox entry

            if ( parent == KMsvRootIndexEntryId )

                {

                RemoveOrphanLogicsL();

                }

            }

            break;

        case MMsvSessionObserver::EMsvEntriesMoved:

        default:

            break;

        };

    }

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

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

//

void CIpsSosAOImapPopLogic::SendCommandToMailboxesL( 

        TInt aCommand )

    {

    FUNC_LOG;

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

        {

        iMailboxLogics[i]->SendCommandL( aCommand );

        }

    }

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

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

//

void CIpsSosAOImapPopLogic::StopAndRemoveMailboxL( TMsvId aMailboxId )

    {

    FUNC_LOG;

    TInt index = GetMailboxLogicIndex( aMailboxId );

    if ( index != KErrNotFound )

        {

        SendCommandToSpecificMailboxL( aMailboxId, 

                CIpsSosAOMBoxLogic::ECommandStop );

        delete iMailboxLogics[index];

        iMailboxLogics.Remove( index );

        }

    }

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

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

//

void CIpsSosAOImapPopLogic::SendCommandToSpecificMailboxL( 

        TMsvId aMailboxId, 

        TInt aCommand )

    {

    FUNC_LOG;

    TInt index = GetMailboxLogicIndex( aMailboxId );

    if ( index != KErrNotFound )

        {

        iMailboxLogics[index]->SendCommandL( aCommand ); // faulty CS warning

        }

    }

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

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

//

void CIpsSosAOImapPopLogic::HandleEMNMessageL(

    const TDesC8& aParameters )

    {

    FUNC_LOG;

    TEMNElement elements;

    if ( iEmnResolver->ParameterDispatchTEMNElement( 

        aParameters, elements ) == KErrNone )

        {

        TInt index = iEmnResolver->FindEMNMailbox( 

                elements.mailbox, iMailboxLogics );

        if ( index != KErrNotFound )

            {

            CIpsSosAOMBoxLogic* logic = iMailboxLogics[index];

			if ( !logic->FirstEMNReceived() )

                {

                logic->SetFirstEMNReceived();

                }

            if ( !iNoNWOpsAllowed && 

                 !logic->IsMailboxRoamingStoppedL() )

                {

                SendCommandToSpecificMailboxL( 

                    logic->GetMailboxId(), // faulty CS warning

                    CIpsSosAOMBoxLogic::ECommandStartSync );

                }

            else

                {

                logic->SetEmnReceivedFlagL( ETrue );                

                }

            logic = NULL;

            }

        }

    }

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

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

//

void CIpsSosAOImapPopLogic::RefreshMailboxListL( )

    {

    FUNC_LOG;

    CMsvEntry* cEntry = iSession.GetEntryL( KMsvRootIndexEntryId );

    CleanupStack::PushL( cEntry );

    CMsvEntrySelection* childEntries = cEntry->ChildrenWithMtmL( KSenduiMtmPop3Uid );

    CleanupStack::PushL( childEntries );

    UpdateLogicArrayL( *childEntries );

    CleanupStack::PopAndDestroy( childEntries );

    childEntries = cEntry->ChildrenWithMtmL( KSenduiMtmImap4Uid );

    CleanupStack::PushL( childEntries );

    UpdateLogicArrayL( *childEntries );

    CleanupStack::PopAndDestroy( childEntries );

    CleanupStack::PopAndDestroy( cEntry );

    }

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

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

//

void CIpsSosAOImapPopLogic::UpdateLogicArrayL( 

        const CMsvEntrySelection& aChilds )

    {

    FUNC_LOG;

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

        {

        TBool found = EFalse;

        TMsvId mboxId = aChilds.At(i);

        for ( TInt j = 0; !found && j < iMailboxLogics.Count(); j++  )

            {

            if ( iMailboxLogics[j]->GetMailboxId() == mboxId )

                {

                found = ETrue;

                }

            }

		//<QMail>

        CIpsSosAOSettingsHandler* settings = 

                 CIpsSosAOSettingsHandler::NewL(iSession, mboxId);

        CleanupStack::PushL(settings);

        if ( !found  && ( settings->AlwaysOnlineState() 

                != IpsServices::EMailAoOff || 

                    settings->EmailNotificationState() 

                != IpsServices::EMailEmnOff || 

                    !settings->FirstEmnReceived() )

                 )

            {

            CIpsSosAOMBoxLogic* newLogic = CIpsSosAOMBoxLogic::NewL( 

                    iSession, mboxId );

            CleanupStack::PushL( newLogic );

            iMailboxLogics.AppendL( newLogic );

            CleanupStack::Pop( newLogic );

            }

        else if ( found && settings->AlwaysOnlineState() 

                == IpsServices::EMailAoOff &&

                    settings->EmailNotificationState() 

                == IpsServices::EMailEmnOff &&

                    settings->FirstEmnReceived() )

            {

            StopAndRemoveMailboxL( mboxId );

            }

        CleanupStack::PopAndDestroy(settings);

		//</QMail>

        }

    //finally, check for orphans ( mailbox has been deleted )

    RemoveOrphanLogicsL();

    }

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

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

//

TInt CIpsSosAOImapPopLogic::QueryMailboxStatus( TDesC8& aParameter )

    {

    FUNC_LOG;

    TPckgBuf<RMessage2> param;

    param.Copy( aParameter );

    // get ipc message from param

    RMessage2 msg = param();

    TPckgBuf<TMsvId> mboxBuf;

    msg.Read(0, mboxBuf);

    TMsvId mbox = mboxBuf();

    TInt error = KErrNone;

    TInt index = GetMailboxLogicIndex( mbox );

    if ( index != KErrNotFound )

        {

        TInt state = iMailboxLogics[index]->GetCurrentState(); // faulty CS warning

        if ( state == CIpsSosAOMBoxLogic::EStateSyncOngoing

          || state == CIpsSosAOMBoxLogic::EStateFetchOngoing )

            {

            TPckgBuf<TInt> event( EIpsAOPluginStatusSyncStarted );

            msg.Write(1, event );

            }

        else

            {

            TPckgBuf<TInt> event( EIpsAOPluginStatusSyncCompleted );

            msg.Write(1, event );

            }

        }

    else

        {

        error = KErrNotFound;

        }

    return error;

    }

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

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

//

TInt CIpsSosAOImapPopLogic::GetMailboxLogicIndex( TMsvId aMailboxId )

    {

    FUNC_LOG;

    TInt index = KErrNotFound;

    for ( TInt i = 0; 

            index == KErrNotFound && i < iMailboxLogics.Count(); i++ )

        {

        if ( iMailboxLogics[i]->GetMailboxId() == aMailboxId )

            {

            index = i;

            }

        }

    return index;

    }

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

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

//

void CIpsSosAOImapPopLogic::RemoveOrphanLogicsL()

    {

    CMsvEntry* cEntry = iSession.GetEntryL( KMsvRootIndexEntryId );

    CleanupStack::PushL( cEntry );

    CMsvEntrySelection* popEntries = cEntry->ChildrenWithMtmL( KSenduiMtmPop3Uid );

    CleanupStack::PushL( popEntries );

    CMsvEntrySelection* imapEntries = cEntry->ChildrenWithMtmL( KSenduiMtmImap4Uid );

    CleanupStack::PushL( imapEntries );