/*

* 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:  This class is wrapper class of agenda engine.

*

*/

//debug

#include "calendarui_debug.h"

// INCLUDES

#include "CalenEngine.h"

#include "CalenAsyncCommands.h"

#include "CalEngineCallback.h"

#include "CleanupResetAndDestroy.h"

#include <calinstanceview.h>

#include <calsession.h>

#include <calcalendarinfo.h>

#include <calcalendariterator.h>

enum TCalenEnginePanic

    {

    EMultipleCommands = 0

    };

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

// ?implementation_description

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

//

static void Panic(TInt aReason) 

    {

    TRACE_ENTRY_POINT;

    _LIT(KPanicCategory, "CalenEngine");

    User::Panic(KPanicCategory, aReason);

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

CCalenEngine::CCalenEngine() 

    { 

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

CCalenEngine* CCalenEngine::NewL()

    {

    TRACE_ENTRY_POINT;

    CCalenEngine* self = new (ELeave) CCalenEngine;

    //CleanupStack::PushL(self);

    //self->ConstructL();

    //CleanupStack::Pop(self);

    TRACE_EXIT_POINT;

    return self;

    }

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

// ?implementation_description

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

//

CCalenEngine::~CCalenEngine()

    {

    TRACE_ENTRY_POINT;

    Close();

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::Close()

    {

    TRACE_ENTRY_POINT;

    if( iCommand )

        {

        // cancel all asynchronous operations before(!) deleting the object!

        iCommand->Cancel();

        delete iCommand;

        iCommand = NULL;

        }

    ReleaseCalendarDatabase();

    TRACE_EXIT_POINT;

    }

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

// CCalenEngine::GetActiveSessionsL

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

//

RPointerArray<CCalSession>& CCalenEngine::GetActiveSessionsL()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    return iSessionReferanceArray;

    }

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

// CCalenEngine::UpdateCalSessionsL

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

//

void CCalenEngine::UpdateCalSessionsL()

    {

    TRACE_ENTRY_POINT;

    Reset();

    GetAllCalendarInfoL();

    CCalSession* defaultSession = CCalSession::NewL(); //Default session  

    iSessionOwningArray.AppendL(defaultSession);

    CCalSession* tempSession = NULL; //Temp session 

    for (TInt index = 0; index < iCalInfoArray.Count(); index++)

        {

        TPtrC calFileName = iCalInfoArray[index].iFileName;

#ifdef _DEBUG

        RDebug::Print(calFileName);

#endif

        if (!calFileName.CompareF(defaultSession->DefaultFileNameL()))

            {

            CleanupStack::PushL(defaultSession);

            defaultSession->OpenL(calFileName);

            CleanupStack::Pop(defaultSession);

            tempSession = defaultSession;

            iCalInfoArray[index].iColltectionId

                    = tempSession->CollectionIdL();

            }

        else

            {

            tempSession = CCalSession::NewL(*defaultSession);

            CleanupStack::PushL(tempSession);

            tempSession->OpenL(calFileName);

            CleanupStack::Pop(tempSession);

            iCalInfoArray[index].iColltectionId

                    = tempSession->CollectionIdL();

            iSessionOwningArray.AppendL(tempSession);

            }

        iSessionReferanceArray.AppendL(tempSession);

        }

    TRACE_EXIT_POINT;

    }

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

// CCalenEngine::GetAllCalendarsL

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

//

void CCalenEngine::GetAllCalendarInfoL( )

    {

    TRACE_ENTRY_POINT

    CCalSession* sessionIter = CCalSession::NewL();

    CleanupStack::PushL(sessionIter);

    CCalCalendarIterator* calIter = CCalCalendarIterator::NewL(*sessionIter);

    CleanupStack::PushL(calIter);

    for(CCalCalendarInfo* calendarInfo = calIter->FirstL() ;

        calendarInfo != NULL ; calendarInfo = calIter->NextL() )

        {

            {

            TCalInfo calInfo;

            calInfo.iFileName = calendarInfo->FileNameL();

            calInfo.iColor = calendarInfo->Color().Value();

            iCalInfoArray.AppendL(calInfo);

            }

        delete calendarInfo; 

        }

    CleanupStack::PopAndDestroy(calIter);

    CleanupStack::PopAndDestroy(sessionIter);

    TRACE_EXIT_POINT    

    }

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

// CCalenEngine::Reset

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

//

void CCalenEngine::Reset()

    {

    TRACE_ENTRY_POINT

    if(iCalInfoArray.Count())

        {

        iCalInfoArray.Reset();

        }

    if (iSessionReferanceArray.Count())

        {

        iSessionReferanceArray.Reset();

        }

    if (iSessionOwningArray.Count())

        {

        iSessionOwningArray.ResetAndDestroy();

        }

    TRACE_EXIT_POINT    

    }

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

// ?implementation_description

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

//

void CCalenEngine::StartCommand( CMultistepCommandBase* aCommand,

                                 MCalenEngineGeneralCallback& aCallback )

    {

    TRACE_ENTRY_POINT;

    __ASSERT_ALWAYS(iCommand == NULL, Panic(EMultipleCommands));

    iCallback = &aCallback;

    iCommand = aCommand;

    iCommand->Start();

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::FinishCommand()

    {

    TRACE_ENTRY_POINT;

    __ASSERT_ALWAYS(iCommand != NULL, User::Invariant());

    delete iCommand;

    iCommand = NULL;

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::OpenDatabaseL(MCalenEngineOpenCallback& aCallback)

    {

    TRACE_ENTRY_POINT;

    StartCommand(new (ELeave) COpenCommand(*this), aCallback);

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::OpenCompleted()

    {

    TRACE_ENTRY_POINT;

    FinishCommand();

    static_cast<MCalenEngineOpenCallback*>(iCallback)->OpenDatabaseCompleted();

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetEntriesForDayL( MCalenEngineEntryFetchCallback& aCallback, 

                                               const TTime& aDay, 

                                               RPointerArray<CCalInstance>& aInstanceArray )

    {

    TRACE_ENTRY_POINT;

    StartCommand(

        CGetEntriesCommand::NewL( *this, aDay, aInstanceArray ), 

        aCallback );

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetEventForNextSevenDaysL( MCalenEngineEntryFetchCallback& aCallback, 

                                                       const TTime& aStartDay, const TInt aDaysToSearch,

                                                       RPointerArray<CCalInstance>& aInstanceArray )

    {

    TRACE_ENTRY_POINT;

    StartCommand( 

        CGetNextEventCommand::NewL( *this, aStartDay, aDaysToSearch, aInstanceArray ), 

        aCallback );

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetTodosL( MCalenEngineEntryFetchCallback& aCallback, 

                                       RPointerArray<CCalInstance>& aInstanceArray )

    {

    TRACE_ENTRY_POINT;

    StartCommand( 

        CGetTodosCommand::NewL( *this, aInstanceArray ), 

        aCallback );

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetCalendarDataL( MCalenEngineEntryFetchCallback& aCallback,

                                    RPointerArray<CCalInstance>& aInstanceArray,

                                    const TTime& aStartDay,

                                    const TInt aDaysToSearch )

    {

    TRACE_ENTRY_POINT;

    StartCommand( 

        CGetEntriesForDaysCommand::NewL( *this, aInstanceArray, aStartDay, aDaysToSearch ), 

        aCallback );

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetEntriesCompleted()

    {

    TRACE_ENTRY_POINT;

    FinishCommand();

    static_cast<MCalenEngineEntryFetchCallback*>(iCallback)->GetEntriesCompleted();

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetTodosCompleted()

    {

    TRACE_ENTRY_POINT;

    FinishCommand();

    static_cast<MCalenEngineEntryFetchCallback*>(iCallback)->GetTodosCompleted();

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetFutureEventCompleted(void)

    {

    TRACE_ENTRY_POINT;

    FinishCommand();

    static_cast<MCalenEngineEntryFetchCallback*>(iCallback)->GetFutureEventCompleted();

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::GetCalendarDataCompleted(void)

    {

    TRACE_ENTRY_POINT;

    FinishCommand();

    static_cast<MCalenEngineEntryFetchCallback*>(iCallback)->GetCalendarDataCompleted();

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::HandleError(TInt aError)

    {

    TRACE_ENTRY_POINT;

    FinishCommand();

    static_cast<MCalenEngineGeneralCallback*>(iCallback)->HandleError( aError );

    TRACE_EXIT_POINT;

    }

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

// ?implementation_description

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

//

void CCalenEngine::ReleaseCalendarDatabase()

    {

    TRACE_ENTRY_POINT;

    delete iInstanceView;

    iInstanceView = NULL;

    Reset();

    TRACE_EXIT_POINT;

    }

// End of File