/*

* 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:  Implementation for ESMR send MR via fs email task

*

*/

#include "cesmrsendmrfsmailtask.h"

#include "cesmrcaldbmgr.h"

#include "mesmrmeetingrequestentry.h"

#include "cesmrfsemailmanager.h"

#include "cesmrmailplaitextformatter.h"

#include "cesmrcalimportexporter.h"

#include "cesmrcaluserutil.h"

#include "cesmrguilistquery.h"

#include "esmrhelper.h"

#include "cesmrfsmailboxutils.h"

#include <coemain.h>

#include <utf.h>

#include <bautils.h>

#include <caluser.h>

#include <cmrmailboxutils.h>

#include <calentry.h>

#include <calentryview.h>

#include <calattachment.h>

#include "emailtrace.h"

// Unnamed namespace for local definitions

namespace { // codescanner::namespace

/**

 * Adds updated label into summary field.

 */

void UpdateSummaryL(

        CCalEntry& aEntry,

        CESMRMailPlainTextFormatter& aPlainTextFormatter )

    {

    FUNC_LOG;

    TPtrC currentSummary( aEntry.SummaryL() );

    CCalEntry::TMethod method( aEntry.MethodL() );

    if ( CCalEntry::EMethodRequest == method && aEntry.SequenceNumberL() )

        {

        // This is update

        HBufC* updateStr = aPlainTextFormatter.UpdatedStringLC();

        HBufC* summary = HBufC::NewLC(

                            updateStr->Length() + currentSummary.Length() );

        if ( currentSummary.Find(*updateStr) == KErrNotFound )

            {

            TPtr summaryPtr( summary->Des() );

            summaryPtr.Append( *updateStr );

            summaryPtr.Append( currentSummary );

            aEntry.SetSummaryL( summaryPtr );

            }

        CleanupStack::PopAndDestroy( summary );

        summary = NULL;

        CleanupStack::PopAndDestroy( updateStr );

        updateStr = NULL;

        }

    else if ( CCalEntry::EMethodCancel == method )

        {

        // This is cancellation

        HBufC* cancelStr = aPlainTextFormatter.CanceledStringLC();

        HBufC* summary = HBufC::NewLC(

                cancelStr->Length() + currentSummary.Length() );

        if ( currentSummary.Find(*cancelStr) == KErrNotFound )

            {

            TPtr summaryPtr( summary->Des() );

            summaryPtr.Append( *cancelStr );

            summaryPtr.Append( currentSummary );

            aEntry.SetSummaryL( summaryPtr );

            }

        CleanupStack::PopAndDestroy( summary );

        summary = NULL;

        CleanupStack::PopAndDestroy( cancelStr );

        cancelStr = NULL;

        }

    }

/**

 * Cleanup operation for RPointerArray.

 *

 * @param aArray Pointer to RPointerArray.

 */

void CalAttendeePointerArrayCleanup( TAny* aArray )

    {

    RPointerArray<CCalAttendee>* attendeeArray =

        static_cast<RPointerArray<CCalAttendee>*>( aArray );

        attendeeArray->ResetAndDestroy();

        attendeeArray->Close();

    }

#ifdef _DEBUG

// Literal for panics

_LIT( ESMRSendMRRespMailPanicTxt, "ESMRSendMRFSEMailTask" );

// Panic codes

enum TESMRSendMRFSMailTaskPanic

    {

    EESMRSendMRFSMailInvalidMethod, // Entry has invalid method

    EESMRSendMRFSAttendeesMissing,  // There are no any attendees in entry to be sent

    EESMRSendMRNoEntriesToSend,     // There are no entries to be sent

    EESMRSendMRPhoneOwnerNotSet     // Phone owner is not set

    };

// ======== LOCAL FUNCTIONS ========

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

// Panic wrapper method

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

//

void Panic( TESMRSendMRFSMailTaskPanic aPanic )

    {

    User::Panic( ESMRSendMRRespMailPanicTxt, aPanic );

    }

#endif // _DEBUG

// Definition for temporary calendar file

//<cmail> remove hard coded paths

//_LIT( KPath, "c:\\temp\\" ); //codescanner::driveletters

//_LIT( KFileAndPath, "c:\\temp\\meeting.ics" ); //codescanner::driveletters

//_LIT( KCancellationFile, "c:\\temp\\cancel.ics" ); //codescanner::driveletters

_LIT( KFile, "temp\\meeting.ics" );

_LIT( KCancelFile, "temp\\cancel.ics" );

//</cmail>

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

// Leave wrapper method

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

//

inline void DoLeaveIfErrorL( TInt aLeaveCode )

    {

    if ( KErrNone != aLeaveCode )

        {

        User::Leave( aLeaveCode );

        }

    }

} // namespace

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

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

// CESMRSendMRFSMailTask::CESMRSendMRFSMailTask

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

//

CESMRSendMRFSMailTask::CESMRSendMRFSMailTask(

        MESMRCalDbMgr& aCalDbMgr,

        MESMRMeetingRequestEntry& aEntry,

        CMRMailboxUtils& aMRMailboxUtils,

        TESMRCommand aCommand )

:   CESMRTaskBase( aCalDbMgr, aEntry, aMRMailboxUtils ),

    iCommand( aCommand )

    {

    FUNC_LOG;

    //do nothing

    }

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

// CESMRSendMRFSMailTask::~CESMRSendMRFSMailTask

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

//

CESMRSendMRFSMailTask::~CESMRSendMRFSMailTask()

    {

    FUNC_LOG;

    iEntriesToSend.ResetAndDestroy();

    delete iCaluserUtil;

    delete iEmailMgr;

    }

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

// CESMRSendMRFSMailTask::NewL

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

//

CESMRSendMRFSMailTask* CESMRSendMRFSMailTask::NewL(

        MESMRCalDbMgr& aCalDbMgr,

        MESMRMeetingRequestEntry& aEntry,

        CMRMailboxUtils& aMRMailboxUtils,

        TESMRCommand aCommand )

    {

    FUNC_LOG;

    CESMRSendMRFSMailTask* self =

        new (ELeave) CESMRSendMRFSMailTask(

                aCalDbMgr,

                aEntry,

                aMRMailboxUtils,

                aCommand );

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

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

// CESMRSendMRFSMailTask::ConstructL

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

//

void CESMRSendMRFSMailTask::ConstructL()

    {

    FUNC_LOG;

    BaseConstructL();

    iEmailMgr = CESMRFSEMailManager::NewL( MailboxUtils() );

    }

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

// CESMRSendMRFSMailTask::ExecuteTaskL

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

//

void CESMRSendMRFSMailTask::ExecuteTaskL()

    {

    FUNC_LOG;

    CCalEntry* entry = ESMREntry().ValidateEntryL();

    CleanupStack::PushL( entry );    

    iCaluserUtil = CESMRCalUserUtil::NewL( *entry );

    CCalEntry::TMethod method( entry->MethodL() );

    // Checking input paramters

    if( !(CCalEntry::EMethodRequest == method ||

          CCalEntry::EMethodCancel == method) ||

          CCalEntry::EAppt != entry->EntryTypeL() )

        {

        DoLeaveIfErrorL( KErrArgument );

        }

    // Get entries to be sent

    GetEntriesToBeSentL();

    ResolveSendTypeL();

    if ( NeedToSendInvitationL() )

        {

        TInt entryCount( iEntriesToSend.Count() );

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

            {

            iEntryToSend = iEntriesToSend[i];

            ConstructMailL();

            TInt ret = iEmailMgr->SendMessageL();

            User::LeaveIfError(ret);

            }

        }

    if ( EESMRCmdSendMRUpdate == iCommand &&

         NeedToSendCancellationL() )

        {

        delete iEmailMgr; iEmailMgr = NULL;

        iEmailMgr = CESMRFSEMailManager::NewL( MailboxUtils() );

        TInt entryCount( iEntriesToSend.Count() );

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

            {

            // Sending cancellation to removed attendees

            iEntryToSend = iEntriesToSend[i];

            iEntryToSend->SetMethodL( CCalEntry::EMethodCancel );

            ConstructMailL();

            TInt ret = iEmailMgr->SendMessageL();

            User::LeaveIfError(ret);

            }

        }

    CleanupStack::PopAndDestroy( entry );

    }

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

// CESMRSendMRRespFSMailTask::ConstructMailL

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

//

void CESMRSendMRFSMailTask::ConstructMailL()

    {

    FUNC_LOG;

    // create text formatter:

    CESMRMailPlainTextFormatter* textFormatter =

            CESMRMailPlainTextFormatter::NewLC( MailboxUtils() );

    // Prepare email manager for sending

    HBufC* mbOwnerAddr = ResolveUsedMailboxUserAddressLC();

    TPtrC emailAddr( ESMRHelper::AddressWithoutMailtoPrefix( *mbOwnerAddr ) );

    iEmailMgr->PrepareForSendingL( emailAddr );

    TBool isForwarded( ESMREntry().IsForwardedL() );

    if ( isForwarded )

        {

        CCalUser* organizer = iEntryToSend->OrganizerL();

        CCalUser* forwardOrganizer =

                CCalUser::NewL(

                        organizer->Address(),

                        emailAddr );

        CleanupStack::PushL( forwardOrganizer );

        forwardOrganizer->SetCommonNameL( organizer->CommonName() );

        // Ownership is transferred to entry

        iEntryToSend->SetOrganizerL( forwardOrganizer );

        CleanupStack::Pop( forwardOrganizer );

        iEmailMgr->SetSenderL(

                forwardOrganizer->Address(),forwardOrganizer->CommonName() );

        iEmailMgr->SetReplyToAddressL(

                forwardOrganizer->Address(), forwardOrganizer->CommonName() );

        organizer = NULL;

        forwardOrganizer = NULL;

        }

    CleanupStack::PopAndDestroy( mbOwnerAddr );

    // set the email subject:

    HBufC* subject = NULL;

    if ( CCalEntry::EMethodRequest == iEntryToSend->MethodL() )

        {

        subject = textFormatter->Subject16LC(

                *iEntryToSend,

                ESMREntry().IsForwardedL(),

                EESMRCmdSendMRUpdate == iCommand  );

        }

    else

        {

        subject = textFormatter->Subject16LC(

                *iEntryToSend,

                ESMREntry().IsForwardedL(),

                EFalse );

        }

    iEmailMgr->SetSubjectL( *subject );

    CleanupStack::PopAndDestroy( subject );

    subject = NULL;

    AddAttendeesL();

    // Set text/plain part:

    HBufC* body = textFormatter->Body16LC( *iEntryToSend );

    iEmailMgr->CreateTextPlainPartL( *body );

    CleanupStack::PopAndDestroy(body);

    body = NULL;

    //  export the calendar entry in iCal format:

    UpdateSummaryL( *iEntryToSend, *textFormatter );

    TInt priority( iEntryToSend->PriorityL() );

    SetCorrectAttendeesToEntryL();

    CESMRCalImportExporter* calExporter = CESMRCalImportExporter::NewLC();

    HBufC* calendarPart = calExporter->ExportToICal16LC( *iEntryToSend );

    // Set text/calendar part:

    CESMRFSEMailManager::TESMRMethod method(

            CESMRFSEMailManager::EESMRMethodRequest);

    CCalEntry::TMethod entryMethod( iEntryToSend->MethodL() );

    switch ( entryMethod )

        {

        case CCalEntry::EMethodRequest:

            {

            method = CESMRFSEMailManager::EESMRMethodRequest;

            }

            break;

        case CCalEntry::EMethodCancel:

            {

            method = CESMRFSEMailManager::EESMRMethodCancel;

            }

            break;

        case CCalEntry::EMethodReply://fallthrough, EMethodReply not needed

        default:

            break;

        }

    if ( CCalEntry::EMethodCancel == entryMethod )

        {

        TFileName fileName(KCancelFile);

        User::LeaveIfError(ESMRHelper::CreateAndAppendPrivateDirToFileName(fileName));

        SaveICalToFileL( *calendarPart, fileName );

        iEmailMgr->CreateTextCalendarPartL(method, fileName);

        }

    else

        {

        TFileName fileName(KFile);

        User::LeaveIfError(ESMRHelper::CreateAndAppendPrivateDirToFileName(fileName));

        SaveICalToFileL( *calendarPart, fileName );

        iEmailMgr->CreateTextCalendarPartL(method, fileName);

        AddAttachmentsL();

        }

    CleanupStack::PopAndDestroy(3, textFormatter);

    }

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

// CESMRSendMRFSMailTask::SaveICalToFileL

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

//

TInt CESMRSendMRFSMailTask::SaveICalToFileL( const TDesC& aICal,

                                             const TDesC& aFilename  )

    {

    FUNC_LOG;

    //create 8 bit buffer for temp file content

    TInt length = aICal.Length() * 2;

    HBufC8* buffer = HBufC8::NewLC( length );

    TPtr8 des = buffer->Des();

    // covert the 16 bit iCal to 8 bit iCal:

    TInt err = CnvUtfConverter::ConvertFromUnicodeToUtf8(des, aICal);

    RFs& fs( CCoeEnv::Static()->FsSession() );

    // ensure the path exists:

    //<cmail>remove hardcoded paths

    //BaflUtils::EnsurePathExistsL(fs, KPath);

    //</cmail>

    // delete previous file

    fs.Delete( aFilename );

    // save the iCal to file system:

    RFile file;

    User::LeaveIfError(file.Create(fs, aFilename, EFileWrite));

    CleanupClosePushL(file);

    User::LeaveIfError(file.Write(*buffer));

    // clean up:

    CleanupStack::PopAndDestroy(2, buffer); // file, fs, buffer

    return KErrNone;

    }

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

// CESMRSendMRFSMailTask::AddAttendeesL

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

//

void CESMRSendMRFSMailTask::AddAttendeesL()

    {

    FUNC_LOG;

    RArray<CCalAttendee*> requiredAttendees;

    CleanupClosePushL( requiredAttendees );

    RArray<CCalAttendee*> optionalAttendees;

    CleanupClosePushL( optionalAttendees );

    GetAttendeesToBeSentL( requiredAttendees, optionalAttendees );

    // Add recipients and cc-recipients

    TInt attendeeCount( requiredAttendees.Count() );

    TInt optAttendeeCount( optionalAttendees.Count() );

    __ASSERT_DEBUG( attendeeCount || optAttendeeCount, Panic(EESMRSendMRFSAttendeesMissing) );

    if ( !attendeeCount && !optAttendeeCount)

        {

        DoLeaveIfErrorL( KErrArgument );

        }

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

        {

        TPtrC emailAddr( requiredAttendees[i]->Address() );

        iEmailMgr->AppendToRecipientL(

                emailAddr,

                requiredAttendees[i]->CommonName() );

        }

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

        {

        TPtrC emailAddr( optionalAttendees[i]->Address() );

        iEmailMgr->AppendCCRecipientL(

                emailAddr,

                optionalAttendees[i]->CommonName() );

        }

    CleanupStack::PopAndDestroy(2, &requiredAttendees );

    }

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

// CESMRSendMRFSMailTask::ResolveUsedMailboxUserAddressLC

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

//

HBufC* CESMRSendMRFSMailTask::ResolveUsedMailboxUserAddressLC()

    {

    FUNC_LOG;

    HBufC* mailboxUserAddress = NULL;

    MESMRMeetingRequestEntry& mrEntry( ESMREntry());

    if ( mrEntry.IsForwardedL() )

        {

        // Entry is forwarded --> Use default mailbox

        CMRMailboxUtils::TMailboxInfo mbInfo;

        CMRMailboxUtils& mbUtils( MailboxUtils() );

        mbUtils.GetDefaultMRMailBoxL( mbInfo );

        mailboxUserAddress = mbInfo.iEmailAddress.AllocLC();

        }

    else

        {

        mailboxUserAddress = mrEntry.CalendarOwnerAddressL().AllocLC();

        }

    return mailboxUserAddress;

    }