/*

 * Copyright (c) 2009 - 2010 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: 

 *

 */

#include "nmapiheaders.h"

namespace EmailClientApi

{

/*!

   Constructor

 */

NmApiEventNotifier::NmApiEventNotifier(QObject *parent) 

:NmApiMessageTask(parent)

{

    NM_FUNCTION;

    mNmApiEventNotifierPrivate = new NmApiEventNotifierPrivate(this);

    connect(mNmApiEventNotifierPrivate, SIGNAL(timedOut()), this, SLOT(

        sendEventsFromBuffer()), Qt::QueuedConnection);

}

/*!

   Destructor

 */

NmApiEventNotifier::~NmApiEventNotifier()

{

    NM_FUNCTION;

    if (mNmApiEventNotifierPrivate) {

        mNmApiEventNotifierPrivate->stop();

    }

}

/*!

   Start monitoring email events

   \return Value tells about monitoring system running

 */

bool NmApiEventNotifier::start()

{

    NM_FUNCTION;

    return mNmApiEventNotifierPrivate->start();

}

/*!

   Cancels monitoring.

   In user responsibility is to cancel monitoring.

   On end it clears buffer events and emits \sa NmApiMessageTask::canceled() signal.

 */

void NmApiEventNotifier::cancel()

{

    NM_FUNCTION;

    mNmApiEventNotifierPrivate->cancel();

    emit canceled();

}

/*!

   Informs if event notifier is running

 */

bool NmApiEventNotifier::isRunning() const

{

    NM_FUNCTION;

    return mNmApiEventNotifierPrivate->isRunning();

}

/*!

   Checks each object in buffer and emits corresponding signal.

   Uses scheduled transmission. Can be called also directly to force the 

   signal sending.

 */

void NmApiEventNotifier::sendEventsFromBuffer()

{

    NM_FUNCTION;

    qRegisterMetaType<EmailClientApi::NmApiMailboxEvent> ("EmailClientApi::NmApiMailboxEvent");

    qRegisterMetaType<EmailClientApi::NmApiMessageEvent> ("EmailClientApi::NmApiMessageEvent");

    QList<NmApiEvent> events;

    mNmApiEventNotifierPrivate->events(events);

    while (!events.isEmpty()) {

        NmApiEvent event = events.takeFirst();

        switch (event.objectType) {

            case EMailbox:

                switch (event.action) {

                    case ENew: {

                        emit mailboxEvent(MailboxCreated, event.objectIds);

                    } 

                    break;

                    case EDeleted: {

                        emit mailboxEvent(MailboxDeleted, event.objectIds);

                    }

                    break;

                    default:

                        break;

                }

                break;

            case EMessage:

                switch (event.action) {

                    case ENew: {

                        emit messageEvent(MessageCreated, event.mailboxId, event.folderId,

                            event.objectIds);

                        }

                        break;

                    case EChange: {

                        emit messageEvent(MessageChanged, event.mailboxId, event.folderId,

                            event.objectIds);

                        }

                        break;

                    case EDeleted: {

                        emit messageEvent(MessageDeleted, event.mailboxId, event.folderId,

                            event.objectIds);

                        }

                        break;

                    default:

                        break;

                }

                break;

            default:

                break;

        }

    }

    events.clear();

}

} //End of EmailClientApi