/*

* 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:  ESMR mrinfo calendar entry retriever implementation

*

*/

#include "emailtrace.h"

#include "cesmrmrinfoicalretriever.h"

#include "cesmrinforecurrencehandler.h"

#include "cesmrattachmentinfo.h"

#include "mesmricalviewerobserver.h"

#include "tesmrinputparams.h"

#include "esmricalviewerutils.h"

#include "esmrconfig.hrh"

//<cmail>

#include "esmricalvieweropcodes.hrh"

#include "mmrinfoprocessor.h"

#include "mmrattendee.h"

#include "mmrrecurrencerule.h"

//</cmail>

#include <calentry.h>

#include <caluser.h>

#include <calalarm.h>

#include <CalenInterimUtils2.h>

#include <utf.h>

// Unnamed namespace for local definitions and functions

namespace {

/**

 * Raises system leave if parameter is different than KErrNone.

 *

 * @param aError Error code

 */

void LeaveIfError( TInt aError )

    {

    if ( KErrNone != aError )

        {

        User::Leave( aError );

        }

    }

/**

 * Tests if certain field is supported by MRINFO object.

 * @param aFields Reference to MRINFO fields'

 * @param aFieldType Tested fieldtype

 */

TBool IsFieldSupported(

        RArray<MMRInfoObject::TESMRInfoField>& aFields,

        MMRInfoObject::TESMRInfoField aFieldType)

    {

    TInt fieldSupported( ETrue );

    TInt fieldCount( aFields.Count() );

    for (TInt i=0; i < fieldCount; ++i)

        {

        if (aFields[i] == aFieldType)

            {

            fieldSupported = ETrue;

            break;

            }

        }

    return fieldSupported;

    }

/**

 * Converts MRINFO method to CCalEntry method.

 * @param aMRMethod MRINFO method.

 * @return CCalEntry method.

 */

CCalEntry::TMethod ConverMRMethodToCalEntryMethod(

        MMRInfoObject::TMRMethod aMRMethod )

    {

    CCalEntry::TMethod ret(CCalEntry::EMethodNone);

    switch (aMRMethod)

        {

        case MMRInfoObject::EMRMethodRequest:

            {

            ret = CCalEntry::EMethodRequest;

            break;

            }

         case MMRInfoObject::EMRMethodCancel:

            {

            ret = CCalEntry::EMethodCancel;

            break;

            }

         case MMRInfoObject::EMRMethodResponse:

            {

            ret = CCalEntry::EMethodReply;

            break;

            }

         default:

            break;

        }

    return ret;

    }

/**

 * Converts MMRINFO response status to CCalEntry response status.

 * @param aMRResponseStatus MRINFO response status.

 * @return CCalEntry response status.

 */

CCalEntry::TStatus ConvertMRResponseToCalEntryStatus(

        MMRInfoObject::TResponse aMRResponseStatus )

    {

    FUNC_LOG;

    CCalEntry::TStatus ret(CCalEntry::ENullStatus);

    switch (aMRResponseStatus)

        {

        case MMRInfoObject::EMrCmdResponseAccept:

            {

            ret = CCalEntry::EConfirmed;

            break;

            }

         case MMRInfoObject::EMrCmdResponseTentative:

            {

            ret = CCalEntry::ETentative;

            break;

            }

         case MMRInfoObject::EMrCmdResponseDecline:

            {

            ret = CCalEntry::ECancelled;

            break;

            }

         default:

            break;

        }

    return ret;

    }

/**

 * Converts MRINFO attendee role to MRINFO attendee role.

 * @param aMRRole MRINFO attendee role.

 * @return CCalEntry attendee role.

 */

CCalAttendee::TCalRole ConvertMRAttendeeRoleToCalEntryRole(

        MMRAttendee::TAttendeeRole aMRRole)

    {

    CCalAttendee::TCalRole ret(CCalAttendee::ENonParticipant);

    switch (aMRRole)

        {

        case MMRAttendee::EMRAttendeeNotSet:

            {

            ret = CCalAttendee::ENonParticipant;

            break;

            }

         case MMRAttendee::EMRAttendeeChair:

            {

            ret = CCalAttendee::EChair;

            break;

            }

         case MMRAttendee::EMRAttendeeParticipant:

            {

            ret = CCalAttendee::EReqParticipant;

            break;

            }

         case MMRAttendee::EMRAttendeeOptionalParticipant:

            {

            ret = CCalAttendee::EOptParticipant;

            break;

            }

         case MMRAttendee::EMRAttendeeNonParticipant:

            {

            ret = CCalAttendee::ENonParticipant;

            break;

            }

         default:

            break;

        }

    return ret;

    }

/**

 * Converts MMRINFO response status to CCalEntry response status.

 * @param aMRStatus MRINFO response status.

 * @return CCalEntry response status.

 */

CCalAttendee::TCalStatus ConvertMRAttendeeStatusToCalEntryStatus(

        MMRAttendee::TAttendeeStatus aMRStatus )

    {

    FUNC_LOG;

    CCalAttendee::TCalStatus ret(CCalAttendee::ENeedsAction);

    switch (aMRStatus)

        {

        case MMRAttendee::EMRAttendeeActionNotSet:

            {

            ret = CCalAttendee::ENeedsAction;

            break;

            }

         case MMRAttendee::EMRAttendeeActionNeeded:

            {

            ret = CCalAttendee::ENeedsAction;

            break;

            }

         case MMRAttendee::EMRAttendeeActionAccepted:

            {

            ret = CCalAttendee::EAccepted;

            break;

            }

         case MMRAttendee::EMRAttendeeActionTentative:

            {

            ret = CCalAttendee::ETentative;

            break;

            }

         case MMRAttendee::EMRAttendeeActionConfirmed:

            {

            ret = CCalAttendee::EConfirmed;

            break;

            }

         case MMRAttendee::EMRAttendeeActionDeclined:

            {

            ret = CCalAttendee::EDeclined;

            break;

            }

        case MMRAttendee::EMRAttendeeActionCompleted:

            {

            ret = CCalAttendee::ECompleted;

            break;

            }

        default:

           break;

        }

    return ret;

    }

/**

 * Copies attendees from MRINFO object to CCalEntry object.

 * @param attendeesArray array of meeting request attendees

 * @param calendar entry of the meeting request

 */

void FillAttendeesL(

        RPointerArray<MMRAttendee>& attendeesArray,

        CCalEntry& aEntry)

    {

    CCalAttendee* attendee = NULL;

    TInt attendeeArrayCount( attendeesArray.Count() );

    for (TInt i=0; i < attendeeArrayCount; ++i)

        {

        // New attendee + address

        attendee = CCalAttendee::NewL( attendeesArray[i]->Address() );

        CleanupStack::PushL(attendee);

        // Common name:

        if ( attendeesArray[i]->CommonName().Length() > 0 )

            {

            attendee->SetCommonNameL( attendeesArray[i]->CommonName() );

            }

        // Set attendeee role:

        attendee->SetRoleL(

                ConvertMRAttendeeRoleToCalEntryRole(

                        attendeesArray[i]->AttendeeRole() ) );

        // add attendee status:

        attendee->SetStatusL(

                ConvertMRAttendeeStatusToCalEntryStatus(

                        attendeesArray[i]->AttendeeStatus() ) );

        // add attendee to entry

        aEntry.AddAttendeeL( attendee );

        CleanupStack::Pop(attendee);

        }

    }

/**

 * Tests if MRINFO object is modifying entry

 * @param aEntry Reference to MRINFO object.

 */

TBool IsModifyingEntryL(

        MMRInfoObject& aEntry )

    {

    TBool modifying( EFalse );

    TTime recurrenceId = aEntry.MRRecurrenceId();

    if ( recurrenceId != Time::NullTTime() )

        {

        modifying = ETrue;

        }

    return modifying;

    }

}//namespace

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

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

// CESMRInfoIcalRetrieverCmd::CESMRInfoIcalRetrieverCmd

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

//

CESMRInfoIcalRetrieverCmd::CESMRInfoIcalRetrieverCmd(

        CCalSession& aCalSession,

        TESMRInputParams& aInputParameters )

:   CESMRIcalViewerCommandBase( EESMRLoadMRInfoData, aCalSession ),

    iInputParameters( aInputParameters )

    {

    FUNC_LOG;

    //do nothing

    }

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

// CESMRInfoIcalRetrieverCmd::~CESMRInfoIcalRetrieverCmd

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

//

CESMRInfoIcalRetrieverCmd::~CESMRInfoIcalRetrieverCmd()

    {

    FUNC_LOG;

    iSupportedFields.Reset();

    iSupportedFields.Close();

    delete iAttachmentInfo;

    delete iConvertedEntry;

    }

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

// CESMRInfoIcalRetriever::NewL

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

//

CESMRInfoIcalRetrieverCmd* CESMRInfoIcalRetrieverCmd::NewL(

        CCalSession& aCalSession,

        TESMRInputParams& aInputParameters )

    {

    FUNC_LOG;

    CESMRInfoIcalRetrieverCmd* self =

            new (ELeave) CESMRInfoIcalRetrieverCmd( aCalSession, aInputParameters );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CESMRInfoIcalRetrieverCmd::ConstructL

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

//

void CESMRInfoIcalRetrieverCmd::ConstructL()

    {

    FUNC_LOG;

    //do nothing

    }

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

// CESMRInfoIcalRetriever::ExecuteCommandL

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

//

void CESMRInfoIcalRetrieverCmd::ExecuteCommandL(

        CFSMailMessage& aMessage,

        MESMRIcalViewerObserver& aObserver )

    {

    FUNC_LOG;

    SetMessage( &aMessage );

    SetObserver( &aObserver );

    iResult.iOpType     = OperationType();

    iResult.iResultCode = KErrNone;

    iResult.iMessage    = &aMessage;

    // Fetch MRINFO object

    if ( !aMessage.IsMRInfoSet() )

        {

        iResult.iResultCode = KErrNotFound;

        aObserver.OperationError( iResult );

        }

    else

        {

        iMRInfoObject =  &(aMessage.GetMRInfo());

        CreateEntryL();

        FillCommonFieldsL();

        if ( !IsModifyingEntryL( *iMRInfoObject ) )

            {

            FillRecurrenceL();

            }

        FillAttachmentInfoL();

        // Fill input parameters

        // Ownership is not trasferred

        iInputParameters.iCalEntry = iConvertedEntry;

        iInputParameters.iMRInfoObject = iMRInfoObject;

        iMRInfoObject = NULL;

        aObserver.OperationCompleted( iResult );

        }

    }

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

// CESMRInfoIcalRetrieverCmd::CancelCommand

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

//

void CESMRInfoIcalRetrieverCmd::CancelCommand()

    {

    FUNC_LOG;

    // No implementation required because this is synchronous command

    }

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

// CESMRInfoIcalRetrieverCmd::CreateEntryL

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

//

void CESMRInfoIcalRetrieverCmd::CreateEntryL()

    {

    FUNC_LOG;

    iMRInfoObject->SupportedFields( iSupportedFields );

    HBufC8* uid8 = NULL;        // buffer for UID

    TInt seqNum(0);             // Sequence Number

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

    // fetch the UID

    if (IsFieldSupported(iSupportedFields, MMRInfoObject::EESMRInfoFieldId))

        {

        // CnvUtfConverter

        TPtrC uid16( iMRInfoObject->UidL() );

        uid8 = CnvUtfConverter::ConvertFromUnicodeToUtf8L( uid16 );

        CleanupStack::PushL( uid8 );

        }

    else

        {

        User::Leave( KErrCorrupt );

        }

    // Fetch the sequence nunber

    if (IsFieldSupported(iSupportedFields, MMRInfoObject::EESMRInfoFieldSeqNo))

        {

        seqNum = iMRInfoObject->MRSequenceNumberL();

        }

    // Fetch the method

    if ( IsFieldSupported(iSupportedFields, MMRInfoObject::EESMRInfoFieldMethod) )

        {

        MMRInfoObject::TMRMethod mrMethod = iMRInfoObject->MRMethodL();

        method = ConverMRMethodToCalEntryMethod(mrMethod);

        if (method == CCalEntry::EMethodNone)

            {

            LeaveIfError( KErrCorrupt );

            }

        }

    else

        {

        LeaveIfError( KErrCorrupt );

        }

    // create new entry:

    delete iConvertedEntry; iConvertedEntry = NULL;

    if ( !IsModifyingEntryL( *iMRInfoObject ) )

        {

        iConvertedEntry = CCalEntry::NewL (CCalEntry::EAppt,

                                            uid8,

                                            method,

                                            seqNum );

        }

    else

        {

        TBool seqNoSupported(

                IsFieldSupported( iSupportedFields, MMRInfoObject::EESMRInfoFieldSeqNo ) );

        if( !seqNoSupported )

            {

             LeaveIfError( KErrCorrupt );

            }

        TInt seqwNo( iMRInfoObject->MRSequenceNumberL() );

        TCalTime recurrenceID;

        recurrenceID.SetTimeLocalL( iMRInfoObject->MRRecurrenceId() );

        iConvertedEntry = CCalEntry::NewL(

                                CCalEntry::EAppt,

                                uid8,

                                method,

                                seqwNo,

                                recurrenceID,

                                CalCommon::EThisOnly );

        }

    CleanupStack::Pop(uid8 );

    }

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

// CESMRInfoIcalRetrieverCmd::FillCommonFieldsL

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

//

void CESMRInfoIcalRetrieverCmd::FillCommonFieldsL()

    {

    FUNC_LOG;

    if (IsFieldSupported(

            iSupportedFields,

            MMRInfoObject::EESMRInfoFieldMStatus))

        {

        CCalEntry::TStatus status =

            ConvertMRResponseToCalEntryStatus(iMRInfoObject->MRResponse());

        iConvertedEntry->SetStatusL(status);

        }

    if (IsFieldSupported(

                iSupportedFields,

                MMRInfoObject::EESMRInfoFieldCreationDateTime))

        {

        TTime creationTime = iMRInfoObject->CreationTimeInUtcL();

        iConvertedEntry->SetLastModifiedDateL();

        }

    if (IsFieldSupported(

                iSupportedFields,

                MMRInfoObject::EESMRInfoFieldOrganizer))