/*

* 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:  Implementation for CPbkSINDHandler.

*

*/

// INCLUDE FILES

#include "CPbkSINDHandler.h"

#include <VuiVoiceRecogDefs.h>  // KVoiceDialContext

#include <nssvascoreconstant.h>

#include <flogger.h>

#include "TPbkContactItemField.h"

/// Unnamed namespace for local definitions

namespace {

// LOCAL CONSTANTS AND MACROS

const TInt KVoiceTagFieldIdElement = 1;

enum TPanicCode

    {

    EPanicContextNULL = 1,

    EPanicDBManagerCreationFailed,

    EPanicPreCond_NewL,

    EPanicGetContextFailed

    };

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

void Panic(TPanicCode aPanicCode)

    {

    _LIT(KPanicText, "PbkSINDHandler");

    User::Panic(KPanicText, aPanicCode);

    };

} // namespace

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

inline CPbkSINDHandler::CPbkSINDHandler()

    {

    }

inline void CPbkSINDHandler::ConstructL()

    {

    TInt ret = InitializeL();

    if ( ret == KErrNone )

        {

        iInitialized = ETrue;

        }

    else

        {

        iInitialized = EFalse;

        }

    }

TInt CPbkSINDHandler::InitializeL()

    {

    // if the iVasDbManager exists, the initialization has been failed in first

    // try, and some cleaning has to be done.

    if ( iVasDbManager )

        {

        delete iVasDbManager;

        iVasDbManager = NULL;

        delete iWait;

        delete iContext;

        iWait = NULL;

        iVasDbManager = NULL;

        iContextManager = NULL;

        iTagManager = NULL;

        }

    // create Vas db manager

    iVasDbManager = CNssVASDBMgr::NewL();

    TInt err = iVasDbManager->InitializeL();

    if ( err )

        {

        // DbManager returns own error codes that are success or

        // failed, so better to return just KErrGeneral on failure

        return KErrGeneral;

        }

    // Ownership not transferred

    iContextManager = iVasDbManager->GetContextMgr();

    // Ownership not transferred

    iTagManager = iVasDbManager->GetTagMgr();

    iWait = new (ELeave) CActiveSchedulerWait();

    return KErrNone;

    }

CPbkSINDHandler* CPbkSINDHandler::NewL()

    {

    CPbkSINDHandler* self = new (ELeave) CPbkSINDHandler;

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

CPbkSINDHandler::~CPbkSINDHandler()

    {

    delete iVasDbManager;

    delete iWait;

    delete iContext;

    iContextManager = NULL;

    iTagManager = NULL;

    }

TInt CPbkSINDHandler::VoiceTagField(TContactItemId aContactId)

    {

    if ( !iInitialized )

        {

        // something has failed on initialization phase on first time,

        // so let's try again.

        TInt ret(KErrNone);

        TRAPD(err, ret = InitializeL());

        if ( ret == KErrNone && err == KErrNone)

            {

            iInitialized = ETrue;

            }

        else

            {

            iInitialized = EFalse;

            // cannot continue, to be tried again on next time.

            return KErrGeneral;

            }

        }

    // if the context has not been received yet, this is the

    // first time this method is called.

    if ( !iContext )

        {

        // following call is aynchronous, completed in

        // GetContextCompleted or GetContextFailed

        TInt err = iContextManager->GetContext( this, KVoiceDialContext );

        if ( err == TNssVasCoreConstant::EVasSuccess )

            {

            if ( iWait && !iWait->IsStarted() )

                {

                // Let's synchronize GetContext-method.

                iWait->Start();

                if ( !iContext )

                    {

                    // the context getting has failed.

                    // cannot continue

                    return KErrGeneral;

                    }

                }

            else

                {

                return KErrGeneral;

                }

            }

        else

            {

            return KErrGeneral;

            }

        }

    // Last parameter = position of contact id in RRD data in VAS = 0

    iErr = iTagManager->GetTagList( this, iContext, aContactId, 0);

    if ( iErr )

        {

        // GetTagList returns TNssVASErrorCodes that are positive as well as,

        // the voice tagged field ids. So those can not be used as return

        // value, return KErrGeneral.

        return KErrGeneral;

        }

    // Let's synchronize the GetTagList call

    if ( iWait && !iWait->IsStarted() )

        {

        iWait->Start();

        }

    else

        {

        return KErrGeneral;

        }

    // iErr is modifed if the GetTagList fails.

    if ( iErr == KErrNone )

        {

        return iVoiceTaggedFieldId;

        }

    else

        {

        // The iErr is positive on failure case, as well as the voicetagged field

        // identifier, so return KErrGeneral.

        return KErrGeneral;

        }

    }

void CPbkSINDHandler::GetContextCompleted(MNssContext* aContext)

    {

    __ASSERT_ALWAYS( aContext != NULL , Panic(EPanicContextNULL));

    // ownership is transferred

    iContext = aContext;

    // if the iWait has been started, the completion of GetContext method

    // has been synchronized in VoiceTagField - method. Otherwise

    // the completion has happened in background.

    if ( iWait && iWait->IsStarted() )

        {

        iWait->AsyncStop();

        }

    }

void CPbkSINDHandler::GetContextListCompleted(MNssContextListArray* /*aContextList*/)

    {

    // never comes here, defined as pure virtual in MNssGetContextClient.

    }

void CPbkSINDHandler::GetContextFailed(TNssGetContextClientFailCode aFailCode)

    {

    iErr = aFailCode;

    // if the get context has been synchronized:

    if ( iWait && iWait->IsStarted() )

        {

        iWait->AsyncStop();

        }

    }

void CPbkSINDHandler::GetTagListCompleted(MNssTagListArray* aTagList)

    {

    iVoiceTaggedFieldId = KErrNotFound;

    if ( aTagList->Count() != 0 )

        {

        MNssTag* tag = aTagList->At(0);

        if (tag)

            {

            // RRD data contains contactid as first element and field id as second element

            iVoiceTaggedFieldId = tag->RRD()->IntArray()->At( KVoiceTagFieldIdElement );

            }

        }

    // reset and delete the received tag list.

    aTagList->ResetAndDestroy();

    delete aTagList;

    aTagList = NULL;

    // continue with VoiceTagField-method.

    if ( iWait && iWait->IsStarted() )

        {

        iWait->AsyncStop();

        }

    }

void CPbkSINDHandler::GetTagFailed(TNssGetTagClientFailCode aFailCode)

    {

    iErr = aFailCode;

    if ( iWait && iWait->IsStarted() )

        {

        iWait->AsyncStop();

        }

    }

// End of file