/*

* Copyright (c) 2005 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 meeting request utils ui services  

*

*/

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

// INCLUDE FILES

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

//

#include "CMRUtilsUiServices.h"

#include "CMRUtilsInternal.h"

#include "CMREditBeforeSendingViewForm.h"

#include "CMRUtilsCalDbBase.h"

#include "MREntryConsultant.h"

#include "meetingrequestutils.hrh"

#include "MRUtilsFactory.h"

#include "CMRUtilsEmailSender.h"

#include <CalSession.h>

#include <CalEntry.h>

#include <CalInstance.h>

#include <CalInstanceView.h>

#include <CalCommon.h>

#include <CalUser.h>

#include <avkon.hrh>

#include <aknlistquerydialog.h>

#include <meetingrequestutilsuires.rsg>

#include <stringloader.h>

#include <aknnotewrappers.h>

#include <data_caging_path_literals.hrh>

#include <cmrmailboxutils.h>

#include <msvstd.h>

#include <SendUiConsts.h>

#include "ICalUILog.h"

// CONSTANTS

/// Unnamed namespace for local definitions

namespace {

const TInt KDescriptionLength = 700;

_LIT( KResourceFile,"meetingrequestutilsuires.rsc" );

enum TPanicCode

    {

    EPanicEmptyArray = 1,

    };

_LIT( KPanicMsg, "CMRUtilsUiServices" );

void Panic( TPanicCode aReason )

    {

    User::Panic( KPanicMsg, aReason );

    }

    const TInt KResourcePathMaxLen = 30;

}  // namespace

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

// MEMBER FUNCTIONS

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

//

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

// CMRUtilsUiServices::NewL

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

//

CMRUtilsUiServices* CMRUtilsUiServices::NewL(

    CMRUtilsInternal& aMRUtils,

    CCalSession& aCalSession,

    CMsvSession* aMsvSession,

    CMRMailboxUtils& aMRMailboxUtils )

	{

	LOG("CMRUtilsUiServices NewL");

	CMRUtilsUiServices* self =

	    new( ELeave ) CMRUtilsUiServices( aMRUtils,

	                                      aMsvSession, 

	                                      aMRMailboxUtils );

	CleanupStack::PushL( self );

	self->ConstructL( aCalSession );

	CleanupStack::Pop();

	return self;

	}

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

// CMRUtilsUiServices::CMRUtilsUiServices

//

// Constructor.

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

//

CMRUtilsUiServices::CMRUtilsUiServices( 

    CMRUtilsInternal& aMRUtils,

    CMsvSession* aMsvSession,

    CMRMailboxUtils& aMRMailboxUtils )

    : iOwnMsvSession( aMsvSession ? EFalse : ETrue ),

      iMRUtils( aMRUtils ),

      iMRMailboxUtils( aMRMailboxUtils ),

      iMsvSession( aMsvSession )

    {    

    }

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

// CMRUtilsUiServices::~CMRUtilsUiServices

//

// Destructor.

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

//        

CMRUtilsUiServices::~CMRUtilsUiServices()

    {   

    delete iEmailSender;

    if ( iOwnMsvSession )

        {

        delete iMsvSession;

        }    

    if ( iResourceFileOffset )

    	{

        CCoeEnv::Static()->DeleteResourceFile( iResourceFileOffset );

    	}    

    }

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

// CMRUtilsUiServices::ConstructL

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

//    

void CMRUtilsUiServices::ConstructL( CCalSession& aCalSession )

    {

    LOG("CMRUtilsUiServices ConstructL: loading resopurces");

    iResourceFileOffset = MRHelpers::LoadResourceL( KResourceFile,

                                                    KDC_RESOURCE_FILES_DIR );

    LOG("CMRUtilsUiServices ConstructL: creating emailsender");

    iEmailSender = MRUtilsFactory::CreateEmailSenderL( aCalSession );

    if ( iMsvSession )

        { // if existing session was given as construction parameter,

          // then add observer manually

        iMsvSession->AddObserverL( *this );

        }    

    LOG("CMRUtilsUiServices ConstructL finished");        

    }

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

// CMRUtilsUiServices::ReplyToL

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

//          

void CMRUtilsUiServices::ReplyToL(

    CMRUtilsInternal::TMailRecipients aRecipients,

    const CCalEntry& aCalEntry,

    const TDesC& aSenderAddr,

    TMsvId aMailbox )

    {

    iEmailSender->ReplyToL( aRecipients, aCalEntry, aMailbox, aSenderAddr );

    }        

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

// CMRUtilsUiServices::SendL

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

//          

void CMRUtilsUiServices::SendL(

    const CCalEntry& aCalEntry,

    TMsvId aMailbox )

    {  

    iEmailSender->SendL( aCalEntry, CorrespondingSmtpServiceL( aMailbox) );

    }

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

// CMRUtilsUiServices::DeleteWithUiL

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

//          

TInt CMRUtilsUiServices::DeleteWithUiL(

    const CCalEntry& aEntry,

    TMsvId aMailbox )

    {

    TInt retVal( KErrNone );    

    // try to cancel/respond if necessary, don't care if fails since deletion

    // is the important part of this method

    TRAP_IGNORE( PerformDeleteSubOpL( aEntry, NULL, aMailbox ) );

    // if entry is originating, then also modifying entries will get deleted:    

    iMRUtils.DeleteL( aEntry );        

    return retVal;

    }

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

// CMRUtilsUiServices::DeleteWithUiL

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

//          

TInt CMRUtilsUiServices::DeleteWithUiL(

    CCalInstance* aInstance,

    TMsvId aMailbox )

    {

    TInt retVal( KErrNone );    

    if ( !aInstance )

        {

        User::Leave( KErrArgument );

        }    

    // try to cancel/respond if necessary, don't care if fails since deletion

    // is the important part of this method

    TRAP_IGNORE( PerformDeleteSubOpL( aInstance->Entry(),

                                      aInstance,

                                      aMailbox ) );

    // delete instance

    iMRUtils.InstanceView()->DeleteL( aInstance, CalCommon::EThisOnly );

    return retVal;        

    }

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

// CMRUtilsUiServices::PerformDeleteSubOpL

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

//          

void CMRUtilsUiServices::PerformDeleteSubOpL(

    const CCalEntry& aEntry,

    const CCalInstance* aInstance,

    TMsvId aMailbox )

    {

    // create arrays since QueryAndSendL needs them

    RPointerArray<CCalEntry> entryInArray( 1 );

    CleanupClosePushL( entryInArray ); // does not own

    entryInArray.AppendL( &aEntry );    

    RArray<TInt> subOpIndexes( 1 );

	CleanupClosePushL( subOpIndexes );

    if ( IsValidForCancelL( aEntry ) )

        { // cancellation can be sent           

        subOpIndexes.AppendL( 0 );

        QueryAndSendL( entryInArray,

                       subOpIndexes,

                       aInstance,

                       aMailbox,

                       ETrue );

        }

    else if ( IsValidForResponseL( aEntry ) )

        { // response with declined status can be sent

        subOpIndexes.AppendL( 0 );

        QueryAndSendL( entryInArray,

                       subOpIndexes,

                       aInstance,

                       aMailbox,

                       EFalse,

                       CCalAttendee::EDeclined );

        }

    CleanupStack::PopAndDestroy( 2 ); // subOpIndexes, entryInArray

    }

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

// CMRUtilsUiServices::CancelWithUiL

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

//          

TInt CMRUtilsUiServices::CancelWithUiL(

    const RPointerArray<CCalEntry>& aEntries,

    TMsvId aMailbox )

    {

    TInt retVal( KErrNone );

	TInt count( aEntries.Count() );

	RArray<TInt> cancelIndexes( count+1 );	// +1 to tolerate count == 0 case

	CleanupClosePushL( cancelIndexes );

    // evaluate which entries can be cancelled, update status in database

    EvaluateAndUpdateL( aEntries, cancelIndexes, ETrue );

    TInt cancelCount( cancelIndexes.Count() );

    if ( cancelCount == 0 )

        { // If there are no entries to cancel to we can return

        retVal = KErrArgument;

        }

    else

        { // query user for sending options and send if user wants

        retVal = QueryAndSendL( aEntries,

                                cancelIndexes,

                                NULL,

                                aMailbox,

                                ETrue );

        }

    CleanupStack::PopAndDestroy(); // cancelIndexes

    return retVal;

    }

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

// CMRUtilsUiServices::RespondWithUiL

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

//          

TInt CMRUtilsUiServices::RespondWithUiL(

    const RPointerArray<CCalEntry>& aEntries,

    CCalAttendee::TCalStatus aStatus,

    TMsvId aMailbox )

    {

    TInt retVal( KErrNone );

	TInt count( aEntries.Count() );

	RArray<TInt> respondIndexes( count+1 );	// +1 to tolerate count == 0 case

	CleanupClosePushL( respondIndexes );

    // evaluate which entries can be responded to, update status in database

    EvaluateAndUpdateL( aEntries, respondIndexes, EFalse, aStatus );

    TInt respondCount( respondIndexes.Count() );

    if ( respondCount == 0 )

        { // If there are no entries to respond to to we can return

        retVal = KErrArgument;

        }        

    else

        { // query user for sending options and send if user wants

        retVal = QueryAndSendL( aEntries,

                                respondIndexes,

                                NULL,

                                aMailbox,

                                EFalse,

                                aStatus );

        }

    CleanupStack::PopAndDestroy(); // respondIndexes

    return retVal;

    }

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

// CMRUtilsUiServices::EvaluateAndUpdateL

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

//          

void CMRUtilsUiServices::EvaluateAndUpdateL(

    const RPointerArray<CCalEntry>& aEntries,

    RArray<TInt>& aValidIndexes,

    TBool aIsCancellation,

    CCalAttendee::TCalStatus aStatus )

    {

	TInt count( aEntries.Count() );

	// Go through all entries in the array, and update status of those requests

	// that we should cancel/respond. Store indexes of those requests.

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

        {

        CCalEntry& entry = *( aEntries[i] );

        TBool isValid = aIsCancellation ? IsValidForCancelL( entry ) :

                                          IsValidForResponseL( entry );

        if ( isValid )

            {

            UpdateDbStatusL( entry, aIsCancellation, aStatus );

            aValidIndexes.AppendL( i );

            }

        }

    }

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

// CMRUtilsUiServices::IsValidForCancelL

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

// 

TBool CMRUtilsUiServices::IsValidForCancelL( const CCalEntry& aEntry )

    {

        // entry must have been sent, otherwise cancellation won't be sent

    return ( IsValidRequestL( aEntry ) &&

             iMRMailboxUtils.IsOrganizerL( aEntry ) &&

             MREntryConsultant::IsSentL( aEntry ) );

    }

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

// CMRUtilsUiServices::IsValidForResponseL

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

//   

TBool CMRUtilsUiServices::IsValidForResponseL( const CCalEntry& aEntry )

    {

    CCalAttendee* thisAttendee = iMRMailboxUtils.ThisAttendeeL( aEntry );

    return ( IsValidRequestL( aEntry ) && thisAttendee );

    }

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

// CMRUtilsUiServices::IsValidRequestL

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

//  

TBool CMRUtilsUiServices::IsValidRequestL(

    const CCalEntry& aEntry ) const

    {

    TBool retVal( EFalse );

    if ( !MREntryConsultant::IsCancelledL( aEntry, iMRMailboxUtils ) &&

         !MREntryConsultant::IsEntryOutOfDateL( aEntry ) )

        {

        retVal= ETrue;

        }

    return retVal;

    }

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

// CMRUtilsUiServices::UpdateDbStatusL

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

//   

void CMRUtilsUiServices::UpdateDbStatusL(

    const CCalEntry& aEntry,

    TBool aIsCancellation,

    CCalAttendee::TCalStatus aStatus ) const

    {

	CCalEntry* dbEntry = iMRUtils.FetchEntryL( aEntry.UidL(),

	                                           aEntry.RecurrenceIdL() );

	if ( dbEntry )

		{

	    CleanupStack::PushL( dbEntry );	    

	    if ( aIsCancellation )

	        { // we have already in evaluation phase ensured that phone

	          // owner is organizer

	        dbEntry->SetStatusL( CCalEntry::ECancelled );

	        iMRUtils.UpdateEntryL( *dbEntry );

	        }	    

	    else

	        {	        

    		CCalAttendee* thisAttendee =

    		    iMRMailboxUtils.ThisAttendeeL( *dbEntry );

    		if ( thisAttendee )

    		    { // this should be found since we found it in evaluation phase

        		thisAttendee->SetStatusL( aStatus );

        		iMRUtils.UpdateEntryL( *dbEntry );

        		}

            else

                { // bad entry given

                User::Leave( KErrArgument );

                }

	        }

        CleanupStack::PopAndDestroy( dbEntry );

		}

	else

		{ // database entry not found

		User::Leave( KErrNotFound );

		}

    }

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

// CMRUtilsUiServices::QueryAndSendL

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

//          

TInt CMRUtilsUiServices::QueryAndSendL(

    const RPointerArray<CCalEntry>& aEntries,

    const RArray<TInt>& aValidIndexes,

    const CCalInstance* aInstance,

    TMsvId aMailbox,

    TBool aIsCancellation,

    CCalAttendee::TCalStatus aStatus )

    {

    // caller should ensure that there is at least one entry in array

    __ASSERT_DEBUG( aValidIndexes.Count() > 0, Panic( EPanicEmptyArray ) );

    TInt retVal( KErrNone );

    // we will use the first entry in the array of entries to be cancelled

    // or responded  as a base entry (it doesn't really matter which one).

    const CCalEntry& base = *( aEntries[aValidIndexes[0]] );

    TInt sendChoice( QuerySendChoiceL( base, aIsCancellation, aStatus ) );

    HBufC* description = HBufC::NewLC( KDescriptionLength );   

	if ( sendChoice == EEditAndSendChoice )

		{

		CEditBeforeSendingViewForm::TMode mode = aIsCancellation ?

		    CEditBeforeSendingViewForm::EEditCancellation :

		    CEditBeforeSendingViewForm::EEditResponse;

		TPtr descriptionPtr( description->Des() );

    	CEditBeforeSendingViewForm* editorForm =

    	    CEditBeforeSendingViewForm::NewL( mode, base, descriptionPtr );

    	TInt buttonID = editorForm->ExecuteLD(

    	    R_EDIT_BEFORE_SENDING_VIEW_FORM_DIALOG );

    	if ( buttonID == EEikCmdCanceled )

    		{

    		retVal = KErrCancel;

    		}

		}

    if ( retVal == KErrNone && sendChoice != EDoNotSendChoice )

        {

        TInt count( aValidIndexes.Count() );

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

            {

            const CCalEntry& entry = *( aEntries[aValidIndexes[i]] );            

            CCalEntry* respOrCancel = CreateToBeSentLC( entry,

                                                        aInstance,

                                                        *description,

                                                        aIsCancellation );

    		SendL( *respOrCancel, aMailbox );

            CleanupStack::PopAndDestroy( respOrCancel );

    	    }	

        }

    CleanupStack::PopAndDestroy( description );

    return retVal;

    }

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

// CMRUtilsUiServices::QuerySendChoiceL

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

//   

TInt CMRUtilsUiServices::QuerySendChoiceL(

    const CCalEntry& aBase,

    TBool aIsCancellation,

    CCalAttendee::TCalStatus aStatus ) const

    {

    TInt retVal( KErrNone );

	HBufC* headerText;

	TInt resource( 0 );

	if ( aIsCancellation )

	    {

	    resource = R_QTN_CALE_MEETIN_REQUEST_CANCELLED;

	    }

    else

        {        

    	switch( aStatus )

    		{

    		case CCalAttendee::EAccepted:

    			{

                resource = R_QTN_MAIL_MTG_SUB_ACCEPTED;

    			break;

    			}

    		case CCalAttendee::ETentative:

    			{

                resource = R_QTN_MAIL_MTG_SUB_TENTATIVE;

                break;

    			}

    		case CCalAttendee::EDeclined:

    			{

                resource = R_QTN_MAIL_MTG_SUB_DECLINED;

    			break;

    			}