/*

* Copyright (c) 2002 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:  Provides asynchronous wrapper functions for

 *                common InterimAPI operations.

 *

*/

//debug

#include "calendarui_debug.h"

// INCLUDES

#include "CalenAsyncCommands.h"

#include "CalenEngine.h"

#include "calenagendautils.h"

#include "calendateutils.h"

#include "CleanupResetAndDestroy.h"

#include <calsession.h>

#include <calcommon.h>

#include <calinstance.h>

#include <calinstanceview.h>

#include "CalenPaths.h"

////////////////////////////////////////////////////////////////////////

// CMultiStepCommandBase method definitions

///////////////////////////////////////////////////////////////////////

CMultistepCommandBase::CMultistepCommandBase(CCalenEngine& aEngine) :

    CActive( 0 ),

    iEngine( aEngine )

    {

    TRACE_ENTRY_POINT;

    CActiveScheduler::Add( this );

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

CMultistepCommandBase::~CMultistepCommandBase()

    {

    TRACE_ENTRY_POINT;

    /* !!! NOTE !!!

     * Do NOT call Cancel() in here.

     * Calling Cancel() will cause the code to panic!

     * Cancel() can only be called in a class that implements

     * the DoCancel() function.

     */

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void CMultistepCommandBase::Start()

    {

    TRACE_ENTRY_POINT;

    CompleteSelf();

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void CMultistepCommandBase::CompleteSelf()

    {

    TRACE_ENTRY_POINT;

    TRequestStatus* pStat = &iStatus;

    if( IsAdded() )

        {

        if (!IsActive())

            {

            SetActive();

            }

        User::RequestComplete( pStat, KErrNone );

        }

    TRACE_EXIT_POINT;

    }

////////////////////////////////////////////////////////////////////////

// COpenCommand method definitions

///////////////////////////////////////////////////////////////////////

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

COpenCommand::COpenCommand(CCalenEngine& aEngine)

    : CMultistepCommandBase( aEngine ),

      iState( ECreateSession ),

      iAgendaError( KErrNone )

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

COpenCommand::~COpenCommand()

    {

    TRACE_ENTRY_POINT;

    Cancel();

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void COpenCommand::Panic(TInt aReason)

    {

    TRACE_ENTRY_POINT;

    __ASSERT_DEBUG( EFalse, User::Panic( _L("COpenCommand"), aReason ) );

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void COpenCommand::RunL()

    {

    TRACE_ENTRY_POINT;

    if (iStatus.Int())

        {

        return;

        }

    switch( iState )

        {

        case ECreateSession:

            {

            iEngine.UpdateCalSessionsL();

            iState = ECreateView;

            CompleteSelf();

            }

            break;

        case ECreateView:

            {

            if(iEngine.iInstanceView)

                {

                delete iEngine.iInstanceView;

                iEngine.iInstanceView = NULL;

                }

            RPointerArray<CCalSession>& sessionArray  =  iEngine.GetActiveSessionsL();

            // Creating a view will create the index

            // This is an asynch function:

            // -> we don't complete ourselves here, agenda model calls back to the Completed method.

            if(sessionArray.Count())

                {

                iEngine.iInstanceView = CCalInstanceView::NewL( sessionArray, *this );

                }

            else

                {

                iState = ESignalCaller;

                CompleteSelf();

                }

            }

            break;

        case ESignalCaller:

            {

            User::LeaveIfError( iAgendaError );

            iState = EReady;

            iEngine.OpenCompleted();

            }

            break;

        default:

            {

            Panic( EInvalidState );

            }

        }

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void COpenCommand::DoCancel()

    {

    TRACE_ENTRY_POINT;

    iState = ECreateSession;

    iEngine.ReleaseCalendarDatabase();

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void COpenCommand::Completed(TInt aError)

    {

    TRACE_ENTRY_POINT;

    iAgendaError = aError;

    iState = ESignalCaller;

    CompleteSelf();

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void COpenCommand::Progress(TInt /*aPercentageCompleted*/)

    {

    TRACE_ENTRY_POINT;

    // do not care about progress, only completion matters

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

TBool COpenCommand::NotifyProgress()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    return EFalse;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

TInt COpenCommand::RunError(TInt aError)

    {

    TRACE_ENTRY_POINT;

    // suppress any error

    iEngine.ReleaseCalendarDatabase();

    iEngine.HandleError( aError );

    TRACE_EXIT_POINT;

    return KErrNone;

    }

////////////////////////////////////////////////////////////////////////

// CGetEntrisCommand method definitions

///////////////////////////////////////////////////////////////////////

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

CGetEntriesCommand* CGetEntriesCommand::NewL( CCalenEngine& aEngine,

                                              const TTime& aDay,

                                              RPointerArray<CCalInstance>& aInstanceArray )

    {

    TRACE_ENTRY_POINT;

    CGetEntriesCommand* self = new( ELeave )CGetEntriesCommand( aEngine, aDay, aInstanceArray );

    TRACE_EXIT_POINT;

    return self;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

CGetEntriesCommand::CGetEntriesCommand( CCalenEngine& aEngine,

                                        const TTime& aDay,

                                        RPointerArray<CCalInstance>& aInstanceArray )

    : CMultistepCommandBase( aEngine ),

      iState( EFetch ),

      iDay( aDay ),

      iInstanceArray( aInstanceArray )

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

CGetEntriesCommand::~CGetEntriesCommand()

    {

    TRACE_ENTRY_POINT;

    Cancel();

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void CGetEntriesCommand::RunL(void)

    {

    TRACE_ENTRY_POINT;

    if (iStatus.Int())

        {

        return;

        }

    switch( iState )

        {

        case EFetch:

            {

            if( !iEngine.iInstanceView )

                {

                iState = EFinalize;

                CompleteSelf();

                }

            else

                {

                    CalCommon::TCalViewFilter filter = CalCommon::EIncludeAppts    | 

                                                       CalCommon::EIncludeReminder | 

                                                       CalCommon::EIncludeEvents   | 

                                                       CalCommon::EIncludeAnnivs;

                    CalenAgendaUtils::FindEventsForDayRangeL( iEngine.iInstanceView, iInstanceArray, filter, iDay, iDay );

                    CalenAgendaUtils::RemoveEntriesEndingAtMidnightL( iInstanceArray, iDay );

                    iState = EFinalize;

                    CompleteSelf();

                }

            }

            break;

        case EFinalize:

            {

                iDay = CalenDateUtils::BeginningOfDay( iDay );

                // Remove all events starting before iDay

                for(TInt i(0); i<iInstanceArray.Count(); )

                    {

                    if( ( iInstanceArray[i]->Entry().EntryTypeL() == CCalEntry::EAppt ||

                          iInstanceArray[i]->Entry().EntryTypeL() == CCalEntry::EReminder )

                        &&

                        iInstanceArray[i]->StartTimeL().TimeLocalL() < iDay )

                        {

                        CCalInstance* instance = iInstanceArray[i];

                        iInstanceArray.Remove( i );

                        delete instance;

                        }

                    else

                        {

                        i++;

                        }

                    }

                CalenAgendaUtils::SortInstanceList( iInstanceArray );

                iState = ESignalCaller;

                CompleteSelf();

            }

            break;

        case ESignalCaller:

            {

            iState = EReady;

            iEngine.GetEntriesCompleted();

            }

            break;

        default:

            {

            Panic( EInvalidState );

            }

        }

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void CGetEntriesCommand::DoCancel(void)

    {

    TRACE_ENTRY_POINT;

    iState = EFetch;

    TRACE_EXIT_POINT;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

TInt CGetEntriesCommand::RunError(TInt aError)

    {

    TRACE_ENTRY_POINT;

    iEngine.HandleError( aError );

    TRACE_EXIT_POINT;

    return KErrNone;

    }

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

void CGetEntriesCommand::Panic(TInt aReason)

    {

    TRACE_ENTRY_POINT;

    __ASSERT_DEBUG( EFalse, User::Panic( _L("CGetEntriesCommand"), aReason ) );

    TRACE_EXIT_POINT;

    }

////////////////////////////////////////////////////////////////////////

// CGetNextEventCommand method definitions

///////////////////////////////////////////////////////////////////////

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

// ?classname::?member_function

// ?implementation_description

// (other items were commented in a header).

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

//

CGetNextEventCommand* CGetNextEventCommand::NewL( CCalenEngine& aEngine, 

                                                  const TTime& aStartDay, 

                                                  const TInt aDaysToSearch, 

                                                  RPointerArray<CCalInstance>& aInstanceArray )

    {

    TRACE_ENTRY_POINT;

    CGetNextEventCommand* self = new( ELeave )CGetNextEventCommand( aEngine, aStartDay, aDaysToSearch, aInstanceArray );

    TRACE_EXIT_POINT;

    return self;

    }

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

// ?classname::?member_function

// ?implementation_description