#include <xqservicerequest.h>

#include "nmhswidgetconsts.h"

    mMailboxId(monitoredMailboxId), 

    mFolderId(0), 

    mAccountName(0), 

    mUnreadCount(-1),

    mEmailInterface(0), 

    mFactory(0), 

    mAccountEventReceivedWhenSuspended(false),

    mMessageEventReceivedWhenSuspended(false), 

    mSuspended(false),

    mUpdateTimer(0)

{

    qDebug() << "NmHsWidgetEmailEngine() -- START";

    qDebug() << "NmHsWidgetEmailEngine() -- END";

}

/*!

 initilaize - Initializes the engine

 Works as a second phase constructor. Must be called before any other operations.

 Client should connect to exceptionOccured signal before calling this method.

 /return true if initialize succeedes otherwise false. If false the object is unusable.

 */

bool NmHsWidgetEmailEngine::initialize()

{

    qDebug() << "initialize() -- START";

    if (!constructNmPlugin()) {

        //if plugin connection fails, there's no reason to proceed

        return false;

    }

    mUpdateTimer = new QTimer(this);

    mUpdateTimer->setInterval(NmHsWidgetEmailEngineUpdateTimerValue);

    connect(mUpdateTimer, SIGNAL(timeout()), this, SLOT(handleUpdateTimeout()) );

    qDebug() << "initialize() -- END";

    return true;

}

 /post Constructs a connection to an instance of NmDataPluginInterface

 /return true if construction succeeded, otherwise false.

bool NmHsWidgetEmailEngine::constructNmPlugin()

{

    qDebug() << "NmHsWidgetEmailEngine::constructNmPlugin() -- START";

    QObject* pluginInstance(0);

    if (!mFactory) {

        qDebug() << "NmHsWidgetEmailEngine::constructNmPlugin() -- mFactory FAILED";

        return false;

    }

    //Get plugin instance

    pluginInstance = mFactory->pluginInstance(mMailboxId);

    if (!pluginInstance) {

        qDebug() << "NmHsWidgetEmailEngine::constructNmPlugin() -- pluginInstance FAILED";

        return false;

    }

    //get interface instance

    mEmailInterface = mFactory->interfaceInstance(pluginInstance);

    if (!mEmailInterface) {

        qDebug() << "NmHsWidgetEmailEngine::constructNmPlugin() -- mEmailInterface FAILED";

        return false;       

    }

    //Verify that the mailbox we are interested actually exists.

    //Otherwise emit account deleted event (instead of just returning)

    QList<NmId> ids; 

    mEmailInterface->listMailboxIds(ids);

    if(!ids.contains(mMailboxId)){

        qDebug() << "NmHsWidgetEmailEngine::constructNmPlugin() -- !ids.contains(mMailboxId) FAILED";

        emit exceptionOccured(NmEngineExcAccountDeleted);

        return false;

    }

    //retrieve folderID for this mailbox's inbox

    //If NmId equals zero, we don't have the Initial sync done for the account

    //This is valid at least for IMAP accounts. 

    //Folder ID is then retrieved later when first message event is received

    mFolderId = mEmailInterface->getStandardFolderId(mMailboxId, NmFolderInbox);

    qDebug() << "NmHsWidgetEmailEngine::constructNmPlugin() -- mFolderId==" << mFolderId.id();

    //Subscription is needed - otherwise the signals will not be received

    mEmailInterface->subscribeMailboxEvents(mMailboxId);

    //Connect to events

    connect(pluginInstance, SIGNAL( messageEvent(NmMessageEvent, const NmId&,

            const QList<NmId>&, const NmId&) ), this,

        SLOT( handleMessageEvent(NmMessageEvent, const NmId&,

                const QList<NmId>&, const NmId&) ));

    connect(pluginInstance, SIGNAL( mailboxEvent(NmMailboxEvent, const QList<NmId>& ) ), this,

        SLOT( handleMailboxEvent(NmMailboxEvent, const QList<NmId>&) ));

    qDebug() << "NmHsWidgetEmailEngine::constructNmPlugin() -- OK";

    return true;

}

{

    qDebug() << "NmHsWidgetEmailEngine::resetEnvelopeList() -- START";

    while (!mEnvelopeList.isEmpty()) {

    qDebug() << "NmHsWidgetEmailEngine::resetEnvelopeList() -- END";

}

{

    qDebug() << "~NmHsWidgetEmailEngine -- START";

    if (mFactory) {

    if (mUpdateTimer){

        mUpdateTimer->stop();

        delete mUpdateTimer;

    }

    qDebug() << "~NmHsWidgetEmailEngine -- END";

}

int NmHsWidgetEmailEngine::getEnvelopes(QList<NmMessageEnvelope> &list, int maxEnvelopeAmount)

{

    qDebug() << "NmHsWidgetEmailEngine::getEnvelopes()";

    for (; i < mEnvelopeList.count() && i < maxEnvelopeAmount; i++) {

    }

}

 \return count of unread mails, or -1 if there are no mails at all in the mailbox.

{

    qDebug() << "NmHsWidgetEmailEngine::unreadCount()";

}

{

    qDebug() << "NmHsWidgetEmailEngine::accountName()";

}

       valid data with maximum of KMaxNumberOfEnvelopesProvided envelopes. 

 - emits exceptionOccured(NmEngineExcFailure) if fatal error occurs.

 - emits mailDataChanged() if new mail data is set into mEnvelopeList

 - emits unreadCountChanged(mUnreadCount), if mUnreadCount is updated

 \return true if everything succeeded, otherwise false

bool NmHsWidgetEmailEngine::updateData()

{

    qDebug() << "NmHsWidgetEmailEngine::updateData() -- START";

    if (!mEmailInterface) {

        qDebug() << "NmHsWidgetEmailEngine::updateData() -- Interface missing";

        emit exceptionOccured(NmEngineExcFailure); //fatal error

        return false; //if interface is missing there's nothing to do

    }

    resetEnvelopeList();

    int msgErr = mEmailInterface->listMessages(mMailboxId, mFolderId, mEnvelopeList,

        KMaxNumberOfEnvelopesProvided);

    if (msgErr) {

        //retrieval of messages failed.  

        return false;

    }

    int folderErr = mEmailInterface->getFolderById(mMailboxId, mFolderId, folder);

    if (folderErr) {

        //retrieval of valid folder failed.

        return false;

    }

    if (folder) {

        //If messageCount in the folder is zero we must indicate unread count to be -1

        if (folder->messageCount() == 0) {

            mUnreadCount = -1;

        }

        else {

            mUnreadCount = folder->unreadMessageCount();

        }

        if (mUnreadCount > KMaxUnreadCount) {

        }

    }else{

        return false;

    }

    qDebug() << "NmHsWidgetEmailEngine::updateData() -- END";

    return true;

}

void NmHsWidgetEmailEngine::handleMessageEvent(

    NmMessageEvent event,

    const NmId &folderId,

    const QList<NmId> &messageIds,

    const NmId& mailboxId)

{

    qDebug() << "NmHsWidgetEmailEngine::handleMessageEvent() -- START";

    if (!mEmailInterface) {

        qDebug() << "NmHsWidgetEmailEngine::handleMessageEvent() -- Interface missing";

        emit exceptionOccured(NmEngineExcFailure); //fatal error

        return; //if interface is missing there's nothing to do

    }

    if (mFolderId == NmId(0)) {

        // inbox was not created in construction phase, so let's

        // get id now as received first mail event

        mFolderId = mEmailInterface->getStandardFolderId(mMailboxId, NmFolderInbox);

    }

    if ((folderId == mFolderId) && (mailboxId == mMailboxId)) {

        if (mSuspended) {

        else {

            //start or restart the timer. Update is started when timer expires

            mUpdateTimer->start();

        }

    qDebug() << "NmHsWidgetEmailEngine::handleMessageEvent() -- END";

}

void NmHsWidgetEmailEngine::handleMailboxEvent(NmMailboxEvent event, const QList<NmId> &mailboxIds)

{

    qDebug() << "NmHsWidgetEmailEngine::handleMailboxEvent() -- START";

    if (mailboxIds.contains(mMailboxId)) {

        switch (event) {

            case (NmMailboxChanged): {

                if (mSuspended) {

                    mAccountEventReceivedWhenSuspended = true;

                }

                else {

                    updateAccount();

                }

                break;

            }

            case (NmMailboxDeleted): {

                emit exceptionOccured(NmEngineExcAccountDeleted);

                break;

            default:

                //ignored

                break;

        }

    }

    qDebug() << "NmHsWidgetEmailEngine::handleMailboxEvent() -- END";

}

/*!

 * handleUpdateTimeout slot

 */

void NmHsWidgetEmailEngine::handleUpdateTimeout()

{

    qDebug() << "NmHsWidgetEmailEngine::handleUpdateTimeout() -- START";

    if (mUpdateTimer){

        mUpdateTimer->stop();

    updateData();

    qDebug() << "NmHsWidgetEmailEngine::updateAccount() -- END";

}

 and accountNameChanged signal is emitted.

bool NmHsWidgetEmailEngine::updateAccount()

{

    qDebug() << "NmHsWidgetEmailEngine::updateAccount() -- START";

    if (mEmailInterface) {

        int err = mEmailInterface->getMailboxById(mMailboxId, box);

        if (err) {

            //By specification return and wait another event

            return false;

    }

    if (box) {

        emit accountNameChanged(mAccountName);

    qDebug() << "NmHsWidgetEmailEngine::updateAccount() -- END";

    return true;

}

 suspend slot.

 \post engine will not emit signals or refresh its data during suspension.

{

    qDebug() << "NmHsWidgetEmailEngine::suspend() -- START";

    qDebug() << "NmHsWidgetEmailEngine::suspend() -- END";

}

 activate slot.

 \post Engine will immediately refresh all the data that has been announced to

 have changed during the suspension. Events are enabled.

{

    qDebug() << "NmHsWidgetEmailEngine::activate() -- START";

    mSuspended = false;

    if (mAccountEventReceivedWhenSuspended) {

    }

    if (mMessageEventReceivedWhenSuspended) {

    qDebug() << "NmHsWidgetEmailEngine::activate() -- END";

}

 launchMailAppInboxView slot.

 \post Mail application is launched to inbox view corresponding widget's mailbox id

{

    qDebug() << "NmHsWidgetEmailEngine::launchMailAppInboxView() -- START";

        emailFullServiceNameMailbox,

    request.send();

    qDebug() << "NmHsWidgetEmailEngine::launchMailAppInboxView() -- END";

}

 launchMailAppMailViewer slot.

 \param messageId Defines the message opened to viewer

 \post Mail application is launched and viewing mail specified by

{

    qDebug() << "NmHsWidgetEmailEngine::launchMailAppMailViewer() -- START";

       emailFullServiceNameMessage,

    request.send();

    qDebug() << "NmHsWidgetEmailEngine::launchMailAppMailViewer() -- END";

}