/*

* Copyright (c) 2007-2008 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:  IMAP4 connect operation

*

*

*/

#include "emailtrace.h"

#include "ipsplgheaders.h"

_LIT( KIpsPlgIpsConnPanic, "IpsConn" ); 

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

// CIpsPlgImap4ConnectOp::NewL()

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

// 

CIpsPlgImap4ConnectOp* CIpsPlgImap4ConnectOp::NewL(

    CMsvSession& aMsvSession,

	TInt aPriority,

    TRequestStatus& aObserverRequestStatus,

    TMsvId aService,

    CIpsPlgTimerOperation& aActivityTimer,

    TFSMailMsgId aFSMailBoxId,

    MFSMailRequestObserver& aFSOperationObserver,

    TInt aFSRequestId,

    CIpsPlgEventHandler* aEventHandler,

    TBool aDoPlainConnect,

    TBool aSignallingAllowed )

    {

    FUNC_LOG;

    CIpsPlgImap4ConnectOp* self = new (ELeave) CIpsPlgImap4ConnectOp(

        aMsvSession, 

        aPriority, 

        aObserverRequestStatus,

        aService, 

        aActivityTimer,

        aFSMailBoxId, 

        aFSOperationObserver,

        aFSRequestId,

        aDoPlainConnect,

        aSignallingAllowed,

        aEventHandler );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CIpsPlgImap4ConnectOp::CIpsPlgImap4ConnectOp()

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

// 

CIpsPlgImap4ConnectOp::CIpsPlgImap4ConnectOp(

    CMsvSession& aMsvSession,

	TInt aPriority,

    TRequestStatus& aObserverRequestStatus,

    TMsvId aService,

    CIpsPlgTimerOperation& aActivityTimer,

    TFSMailMsgId aFSMailBoxId,

    MFSMailRequestObserver& aFSOperationObserver,

    TInt aFSRequestId,

    TBool aDoPlainConnect,

    TBool aSignallingAllowed,

    CIpsPlgEventHandler* aEventHandler)

    :

    CIpsPlgOnlineOperation(

	    aMsvSession,

	    aPriority,

	    aObserverRequestStatus,

	    aActivityTimer,

	    aFSMailBoxId,

	    aFSOperationObserver,

	    aFSRequestId,

    	aSignallingAllowed ),

    iDoPlainConnect( aDoPlainConnect ),

    iEventHandler( aEventHandler ),

    iIsSyncStartedSignaled( EFalse ),

    iAlreadyConnected( EFalse )

    {

    FUNC_LOG;

    iService = aService;

    }

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

// CIpsPlgImap4ConnectOp::~CIpsPlgImap4ConnectOp()

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

// 

CIpsPlgImap4ConnectOp::~CIpsPlgImap4ConnectOp()

    {

    FUNC_LOG;

    Cancel();

    delete iSelection;

    iState = EStateIdle;

    }

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

// CIpsPlgImap4ConnectOp::ConstructL()

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

// 

void CIpsPlgImap4ConnectOp::ConstructL()

    {

    FUNC_LOG;

    BaseConstructL( KUidMsgTypeIMAP4 ); 

    iSelection = new(ELeave) CMsvEntrySelection;

    TMsvEntry tentry;

    TMsvId service;

    iMsvSession.GetEntry( iService, service, tentry );

    if ( tentry.iType.iUid != KUidMsvServiceEntryValue )

        {

        User::Panic( KIpsPlgIpsConnPanic, KErrNotSupported );

        }

    if ( tentry.Connected() )

        {      

        iState = EStateCompleted; 

        iAlreadyConnected = ETrue;

        SetActive();

        CompleteThis();

        }

    else

        {

        iState = EStateStartConnect;

        iStatus = KRequestPending;    

        SetActive();

       CompleteThis();

        }    

    }

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

// CIpsPlgImap4ConnectOp::ProgressL()

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

//

const TDesC8& CIpsPlgImap4ConnectOp::ProgressL()

    {

    FUNC_LOG;

    if( iError != KErrNone )

        {

        return GetErrorProgressL( iError );

        }

    else if(iOperation)

        {

        return iOperation->ProgressL();

        }

    TImap4CompoundProgress& prog = iProgressBuf();

    prog.iGenericProgress.iErrorCode = KErrNone;

    return iProgressBuf;

    }

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

// CIpsPlgImap4ConnectOp::GetErrorProgressL()

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

//   

const TDesC8& CIpsPlgImap4ConnectOp::GetErrorProgressL(TInt aError)

    {

    FUNC_LOG;

    TImap4CompoundProgress& prog = iProgressBuf();

    prog.iGenericProgress.iErrorCode = aError;      

    return iProgressBuf;

    }

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

// CIpsPlgImap4ConnectOp::GetFSProgressL()

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

// 

TFSProgress CIpsPlgImap4ConnectOp::GetFSProgressL() const

    {

    FUNC_LOG;

    // might not never called, but gives something reasonable if called

    TFSProgress result = { TFSProgress::EFSStatus_Waiting, 0, 0, KErrNone };

    result.iError = KErrNone;

    switch( iState )

        {

        case EStateQueryingDetails:

            result.iProgressStatus = TFSProgress::EFSStatus_Authenticating;

            break;

        case EStateStartConnect:

            result.iProgressStatus = TFSProgress::EFSStatus_Started;

            break;

        case EStateConnectAndSync:

            result.iProgressStatus = TFSProgress::EFSStatus_Connecting;

            break;

        case EStateCompleted:

        default:

            result.iProgressStatus = TFSProgress::EFSStatus_RequestComplete;

            break;

        }

    if ( iStatus.Int() == KErrCancel )

        {

        result.iProgressStatus = TFSProgress::EFSStatus_RequestCancelled;

        result.iError = KErrCancel;

        }

    return result;

    }

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

// CIpsPlgImap4ConnectOp::IpsOpType()

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

// 

TInt CIpsPlgImap4ConnectOp::IpsOpType() const

    {

    FUNC_LOG;

    return EIpsOpTypeImap4SyncOp;

    }

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

// CIpsPlgImap4ConnectOp::Connected()

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

// 

TBool CIpsPlgImap4ConnectOp::Connected() const

    {

    FUNC_LOG;

    TMsvEntry tentry;

    TMsvId service;

    iMsvSession.GetEntry(iService, service, tentry );

    return tentry.Connected();

    }

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

// CIpsPlgImap4ConnectOp::DoCancel()

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

// 

void CIpsPlgImap4ConnectOp::DoCancel()

    {

    FUNC_LOG;

    if( iOperation )

        {

        iOperation->Cancel();

        }

    SignalSyncCompleted( KErrCancel );

    CompleteObserver( KErrCancel );

    }

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

// CIpsPlgImap4ConnectOp::DoRunL()

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

//  

void CIpsPlgImap4ConnectOp::DoRunL()

    {

    FUNC_LOG;

    TInt err = KErrNone;

    __ASSERT_DEBUG( !(iOperation && iOperation->IsActive()), 

            User::Panic( KIpsPlgPanicCategory, KErrGeneral ) );

    if ( iOperation )

        {

        err = iOperation->iStatus.Int();

        delete iOperation;

        iOperation = NULL;

        }

    switch( iState )

        {

        case EStateQueryingDetails:

            if ( KErrNone != err )

                {

                // user might be cancelled query

                // or it IS EMPTY

                iError = err;

                iState = EStateIdle;

                }

            else

                {

                // Retry connect.

                DoConnectOpL();

                }

            break;

        case EStateStartConnect:

        	StartL();

        	break;

        case EStateConnectAndSync:

            // Connection completed

            if( err == KErrImapBadLogon )

                {

                // Login details are wrong.

                QueryUserPwdL();

                iState = EStateQueryingDetails;

                err = KErrNone;

                }

            else if ( err == KErrNone )

                {

                // no errors in connection

                if( !iDoPlainConnect )

                    {

                    DoPopulateAllL();

                    }

                else

                    {

                    // Get on with others using this class for connection only

                    iState = EStateIdle;

                    SetActive();

                    CompleteThis();

                    }

                }

            break;

        case EStatePopulateAllCompleted:

            CIpsPlgSyncStateHandler::SaveSuccessfulSyncTimeL(

                    iMsvSession, iService );

            // break command is intentially left out

        case EStateCompleted:

            if ( err == KErrNone )

                {

                iState = EStateIdle;

                SetActive();

                CompleteThis();

                }

            break;

        case EStateIdle:

        default:

            if ( iOperation )

                {

                delete iOperation;

                iOperation = NULL;

                }

            CompleteObserver();

            break;

        }

    // if iError < 0, observer is completed in base class

    iError = err;

    if ( err != KErrNone )

        {

        SignalSyncCompleted( err );

        }

    }

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

// CIpsPlgImap4ConnectOp::HandleImapConnectionEvent()

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

// 

void CIpsPlgImap4ConnectOp::HandleImapConnectionEvent(

    TImapConnectionEvent aConnectionEvent )

    {

    FUNC_LOG;

    switch ( aConnectionEvent )

        {

        case EConnectingToServer:

            break;

        case ESynchronisingFolderList:

        case ESynchronisingInbox:

		case ESynchronisingFolders:

		    // send sync started event in any of these sync events

		    SignalSyncStarted();

		    break;

		case ESynchronisationComplete:

		    break;

		case EDisconnecting:

		    break;

		case EConnectionCompleted:

	    default:

	        break;

        }

    }

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

// CIpsPlgImap4ConnectOp::RequestResponseL()

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

//   

void CIpsPlgImap4ConnectOp::RequestResponseL( 

    TFSProgress /*aEvent*/, TInt /*aRequestId*/ )

    {

    FUNC_LOG;

    }

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

// CIpsPlgImap4ConnectOp::DoConnectOpL()

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

//   

void CIpsPlgImap4ConnectOp::DoConnectOpL()

	{

    FUNC_LOG;

    iBaseMtm->SwitchCurrentEntryL( iService );

    iSelection->ResizeL(0);

    iSelection->AppendL(iService);

    if ( iDoPlainConnect && !Connected() )

        {

        TBuf8<1> parameter;

        iStatus = KRequestPending;

        // connect and synchronise starts background sync or idle

        iOperation = iBaseMtm->InvokeAsyncFunctionL(

                KIMAP4MTMConnect, *iSelection, parameter, iStatus);

        iState = EStateConnectAndSync;

        SetActive();

        }

    else if ( Connected() )

        {

        // in this point cant use "connect and do something" commands,

        // use regular sync, when new mails is populated elsewhere.

        TBuf8<1> parameter;

        iStatus = KRequestPending;

        iOperation = iBaseMtm->InvokeAsyncFunctionL(

                KIMAP4MTMFullSync, *iSelection, parameter, iStatus);

        // also set sync started

        SignalSyncStarted();

        iState = EStateConnectAndSync;

        SetActive();

        }

    else

        {

        TPckg<MMsvImapConnectionObserver*> parameter(this);

        // connect and synchronise starts background sync or idle

        iStatus = KRequestPending;

        iOperation = iBaseMtm->InvokeAsyncFunctionL(

                KIMAP4MTMConnectAndSyncCompleteAfterFullSync, 

                *iSelection, parameter, iStatus);

        iState = EStateConnectAndSync;

        SetActive();

        }

	}

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

// CIpsPlgImap4ConnectOp::DoPopulateAll()

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

void CIpsPlgImap4ConnectOp::DoPopulateAllL()

    {

    FUNC_LOG;

    // construct partial fetch info according to imap settings

    CImImap4Settings* settings = new ( ELeave ) CImImap4Settings();

    CleanupStack::PushL( settings );

    CEmailAccounts* accounts = CEmailAccounts::NewLC();

    TImapAccount imapAcc;

    accounts->GetImapAccountL(iService, imapAcc );

    accounts->LoadImapSettingsL( imapAcc, *settings );

    TImImap4GetPartialMailInfo info;

    CIpsSetDataApi::ConstructImapPartialFetchInfo( info, *settings );

    TPckgBuf<TImImap4GetPartialMailInfo> package(info);

    CleanupStack::PopAndDestroy( 2, settings );

    if ( info.iTotalSizeLimit != KIpsSetDataHeadersOnly )

        {

        SignalSyncStarted();

        CMsvEntry* cEntry = iMsvSession.GetEntryL( iService );

        CleanupStack::PushL( cEntry );

        CMsvEntrySelection* childrenSelection = cEntry->ChildrenL();

        CleanupStack::PushL( childrenSelection );

        if ( childrenSelection->Count() )

            {

            // only inbox is set, do we have to populate other folders also

            TMsvId id = (*childrenSelection)[0];

            CMsvEntry* cEntry2 = iMsvSession.GetEntryL( id );

            CleanupStack::PushL( cEntry2 );

            delete iSelection;

            iSelection = NULL;

            iSelection = cEntry2->ChildrenWithTypeL( KUidMsvMessageEntry );

            CleanupStack::PopAndDestroy( cEntry2 );

            }

        CleanupStack::PopAndDestroy( childrenSelection );

        iStatus = KRequestPending;

        CIpsPlgTimerOperation* dummy = NULL;

        iBaseMtm->SwitchCurrentEntryL( iService );

        iOperation = CIpsPlgImap4PopulateOp::NewL(

                iMsvSession,

                this->iStatus,

                CActive::EPriorityLow,

                iService,

                *dummy,

                info,

                *iSelection,

                iFSMailboxId,

                *this,

                0,

                iEventHandler );

        SetActive();

        CleanupStack::PopAndDestroy( cEntry );

        }

    else

        {

        SetActive();

        CompleteThis();

        }

    iState = EStatePopulateAllCompleted;

    }

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

// CIpsPlgImap4ConnectOp::StartL()

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

// 

void CIpsPlgImap4ConnectOp::StartL()

    {

    FUNC_LOG;

    if ( Connected() && iDoPlainConnect )

        {

        // sync is done background, no explicit supported

        iState = EStateIdle;

        SetActive();

        CompleteThis();

        }

    else 

        {

        DoConnectOpL();

        }

    }    

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

// CIpsPlgImap4ConnectOp::QueryUserPwdL()

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

// 

void CIpsPlgImap4ConnectOp::QueryUserPwdL()

    {