/*

* Copyright (c) 2007-2009 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:  Resolving meeting request method asynchronoysly

*

*/

// INCLUDE FILES

#include "emailtrace.h"

#include "cesmricalviewerresponsetomrcmd.h"

#include "cesmruilauncher.h"

#include "cesmricalvieweremailasynccmd.h"

#include "cesmricalvieweremailsynccmd.h"

#include "esmricalviewerutils.h"

//<cmail>

#include "esmricalvieweropcodes.hrh"

#include <calsession.h>

//</cmail>

#include <calentry.h>

#include "cesmrmrinfoicalretriever.h"

#include "cesmrimapicalretriever.h"

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

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

// CESMRIcalViewerResponseToMRCmd::CESMRIcalViewerResponseToMRCmd

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

//

CESMRIcalViewerResponseToMRCmd::CESMRIcalViewerResponseToMRCmd(

        MESMRIcalViewerCallback& aCallback,

        CCalSession& aCalSession,

        CFSMailClient& aMailClient,

        TESMRAttendeeStatus aAttendeeStatus )

:   CESMRIcalViewerAsyncCommand( EESMRResponseToMR, aCalSession ),

    iCallback( aCallback ),

    iMailClient( aMailClient ),

    iAttendeeStatus( aAttendeeStatus ),

    iCurrentCbCommand( EESMREmailCommand )

    {

    FUNC_LOG;

    //do nothing

    }

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

// CESMRIcalViewerResponseToMRCmd::~CESMRIcalViewerResponseToMRCmd

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

//

CESMRIcalViewerResponseToMRCmd::~CESMRIcalViewerResponseToMRCmd()

    {

    FUNC_LOG;

    CancelCommand();

    delete iUILauncher;

    iMRRetrieverCommands.ResetAndDestroy();

    iMRRetrieverCommands.Close();

    delete iEmailCommand;

    }

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

// CESMRIcalViewerResponseToMRCmd::NewL

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

//

CESMRIcalViewerResponseToMRCmd* CESMRIcalViewerResponseToMRCmd::NewL(

        MESMRIcalViewerCallback& aCallback,

        CCalSession& aCalSession,

        CFSMailClient& aMailClient,

        TESMRAttendeeStatus aAttendeeStatus )

    {

    FUNC_LOG;

    CESMRIcalViewerResponseToMRCmd* self =

            new (ELeave) CESMRIcalViewerResponseToMRCmd(

                    aCallback,

                    aCalSession,

                    aMailClient,

                    aAttendeeStatus );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CESMRIcalViewerResponseToMRCmd::ConstructL

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

//

void CESMRIcalViewerResponseToMRCmd::ConstructL()

    {

    FUNC_LOG;

    BaseConstructL();

    }

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

// CESMRIcalViewerResponseToMRCmd::OperationCompleted

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

//

void CESMRIcalViewerResponseToMRCmd::OperationCompleted(

        MESMRIcalViewerObserver::TIcalViewerOperationResult aResult )

    {

    FUNC_LOG;

    TRAPD( err, HandleOperationCompletedL(aResult) );

    if (KErrNone != err )

        {

        aResult.iOpType = OperationType();

        aResult.iResultCode = err;

        Observer()->OperationError( aResult );

        }

    else if ( !iUILauncher && ((EESMREmailCommand == iCurrentCbCommand) ||

    		  (iCurrentCbCommand == EESMRCmdMailDelete)) )

        {

        aResult.iOpType = OperationType();

        aResult.iAttendeeStatus = iAttendeeStatus;

        Observer()->OperationCompleted( aResult );

        }

    }

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

// CESMRIcalViewerResponseToMRCmd::LaunchUiL

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

//

void CESMRIcalViewerResponseToMRCmd::LaunchUiL()

    {

    FUNC_LOG;

    if ( !iUILauncher )

        {

        iUILauncher = CESMRUiLauncher::NewL(

                            CalSession(),

                            iESMRInputParams,

                            *this );

        }

    iUILauncher->ExecuteCommandL( *Message(), *this );

    }

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

// CESMRIcalViewerResponseToMRCmd::OperationError

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

//

void CESMRIcalViewerResponseToMRCmd::OperationError(

        MESMRIcalViewerObserver::TIcalViewerOperationResult aResult )

    {

    FUNC_LOG;

    if ( aResult.iOpType == EESMRLoadMRInfoData )

        {

        if ( aResult.iResultCode == KErrNotFound && iMRRetrieverCommands.Count() > iCurrentCommand + 1 )

            {

            TRAPD( error, iMRRetrieverCommands[++iCurrentCommand]->ExecuteCommandL(

                    *Message(),

                    *this ) );

            if ( error != KErrNone )

                {

                aResult.iOpType = OperationType();

                aResult.iResultCode = error;

                aResult.iMessage = Message();

                Observer()->OperationError( aResult );

                }

            }

        else

            {

            aResult.iOpType  = OperationType();

            aResult.iMessage = Message();

            Observer()->OperationError( aResult );

            }

        }

    else

        {

        aResult.iOpType  = OperationType();

        aResult.iMessage = Message();

        aResult.iResultCode = KErrNotSupported;

        Observer()->OperationError( aResult );

        }

    }

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

// CESMRIcalViewerResponseToMRCmd::ExecuteAsyncCommandL

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

//

void CESMRIcalViewerResponseToMRCmd::ExecuteAsyncCommandL()

    {

    FUNC_LOG;

    CESMRInfoIcalRetrieverCmd* cmd = CESMRInfoIcalRetrieverCmd::NewL(

                CalSession(),

                iESMRInputParams );

    CleanupStack::PushL( cmd );

    User::LeaveIfError(

            iMRRetrieverCommands.Append( cmd ) );

    CleanupStack::Pop( cmd ); cmd = NULL;

    CESMRImapIcalRetrieverCmd* cmd2 =

        CESMRImapIcalRetrieverCmd::NewL(

            CalSession(),

            iMailClient,

            iESMRInputParams );

    CleanupStack::PushL( cmd2 );

    User::LeaveIfError(

            iMRRetrieverCommands.Append( cmd2 ) );

    CleanupStack::Pop( cmd2 ); cmd2 = NULL;

    iCurrentCommand = 0;

    if(iMRRetrieverCommands.Count() > iCurrentCommand)

        {

        iMRRetrieverCommands[iCurrentCommand]->ExecuteCommandL(

                       *Message(),

                       *this );

        }

    else

        {

        User::Leave(KErrOverflow);

        }

    }

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

// CESMRIcalViewerResolveMRMethodASyncCmd::CancelAsyncCommand

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

//

void CESMRIcalViewerResponseToMRCmd::CancelAsyncCommand()

    {

    FUNC_LOG;

    TInt commandCount( iMRRetrieverCommands.Count() );

    for ( TInt i(0); i < commandCount; ++i )

        {

        iMRRetrieverCommands[iCurrentCommand]->CancelCommand();

        }

    }

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

// CESMRIcalViewerResponseToMRCmd::ProcessCommandL

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

//

void CESMRIcalViewerResponseToMRCmd::ProcessCommandL(TInt aCommandId)

    {

    FUNC_LOG;

    ProcessCommandWithResultL( aCommandId );

    }

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

// CESMRIcalViewerResponseToMRCmd::ProcessCommandWithResultL

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

//

TInt CESMRIcalViewerResponseToMRCmd::ProcessCommandWithResultL( TInt aCommandId )

    {

    FUNC_LOG;

    TInt retValue( KErrNotSupported );

    if ( IsCommandAvailable( aCommandId ) )

        {

        iMRViewerCommand = aCommandId;

        iCurrentCbCommand =

                ESMRIcalViewerUtils::EmailOperation(aCommandId);

        TBool asyncCommand(

                ESMRIcalViewerUtils::IsAsyncEmailCommand( iCurrentCbCommand ) );

        if ( asyncCommand )

            {

            iEmailCommand = CESMRIcalViewerEmailAsyncCmd::NewL(

                    iCurrentCbCommand,

                    CalSession(),

                    iCallback );

            }

        else

            {

            iEmailCommand = CESMRIcalViewerEmailSyncCmd::NewL(

                                    iCurrentCbCommand,

                                    CalSession(),

                                    iCallback );

            }

        iEmailCommand->ExecuteCommandL( *Message(), *this );

        if ( !asyncCommand )

            {

            // Email specific sync command has been executed.

            iCurrentCbCommand = EESMREmailCommand;

            }

        retValue = KErrNone;

        }

    return retValue;

    }

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

// CESMRIcalViewerResponseToMRCmd::IsCommandAvailable

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

//

TBool CESMRIcalViewerResponseToMRCmd::IsCommandAvailable( TInt aCommandId )

    {

    FUNC_LOG;

    TESMRIcalViewerOperationType command(

             ESMRIcalViewerUtils::EmailOperation(aCommandId) );

    return iCallback.CanProcessCommand( command );

    }

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

// CESMRIcalViewerResponseToMRCmd::HandleOperationCompletedL

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

//

void CESMRIcalViewerResponseToMRCmd::HandleOperationCompletedL(

        MESMRIcalViewerObserver::TIcalViewerOperationResult aResult )

    {

    FUNC_LOG;

    if ( EESMRLaunchUI == aResult.iOpType )

        {

        delete iUILauncher;

        iUILauncher = NULL;

        }

    if ( aResult.iOpType == EESMRLoadMRInfoData ||

         aResult.iOpType == EESMRLoadMRIcalData ||

         (aResult.iOpType == iCurrentCbCommand &&

          aResult.iOpType != EESMRCmdMailDelete) ) // <cmail>

        {

        // MRINFO data was parsed succesfully

        CCalEntry::TMethod method( CCalEntry::EMethodNone );

        method = iESMRInputParams.iCalEntry->MethodL();

        if ( CCalEntry::EMethodRequest == method )

            {

            iESMRInputParams.iMailClient = &iMailClient;

            iESMRInputParams.iMailMessage = Message();

            iESMRInputParams.iCommand = EESMRCmdAcceptMR;

            iESMRInputParams.iSpare = 0;

            if ( EESMRAttendeeStatusTentative == iAttendeeStatus )

                {

                iESMRInputParams.iCommand = EESMRCmdTentativeMR;

                }

            else if ( EESMRAttendeeStatusDecline == iAttendeeStatus )

                {

                iESMRInputParams.iCommand = EESMRCmdDeclineMR;

                }

            if ( ESMRIcalViewerUtils::ContainsAttachments(iESMRInputParams) &&

                 iMRViewerCommand != iCurrentCbCommand &&

                 aResult.iOpType == iCurrentCbCommand )

                {

                iCurrentCbCommand = EESMREmailCommand;

                iESMRInputParams.iCommand =

                        ESMRIcalViewerUtils::MRResponseCommandWithoutAttachmentCheck(

                                iMRViewerCommand);

                }

            LaunchUiL();

            }

        if ( iCurrentCbCommand == EESMREmailCommand &&

             method != CCalEntry::EMethodNone &&

             !iUILauncher )

            {

            // No email command in execution --> Notify observer

            aResult.iOpType = OperationType();

            aResult.iAttendeeStatus = iAttendeeStatus;

            Observer()->OperationCompleted( aResult );

            }

        }

    }

// EOF