/*
 *   Copyright 2005 by Aaron Seigo <aseigo@kde.org>
 *   Copyright 2007 by Riccardo Iaconelli <riccardo@kde.org>
 *   Copyright 2008 by Ménard Alexis <darktears31@gmail.com>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License as
 *   published by the Free Software Foundation; either version 2, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include "dataengineconsumer_p.h"

#include <QtCore/QSet>

#include <kdebug.h>

#include <plasma/dataenginemanager.h>
#include <plasma/servicejob.h>

namespace Plasma
{

ServiceMonitor::ServiceMonitor(DataEngineConsumer *consumer)
    : m_consumer(consumer)
{
}

ServiceMonitor::~ServiceMonitor()
{
}

void ServiceMonitor::slotJobFinished(Plasma::ServiceJob *job)
{
    //kDebug() << "engine ready!";
    QString engineName = job->parameters()["EngineName"].toString();
    QString location = job->destination();
    QPair<QString, QString> pair(location, engineName);
    //kDebug() << "pair = " << pair;
    if (!m_consumer->m_remoteEngines.contains(pair)) {
        kDebug() << "engine does not exist yet!";
    } else {
        KUrl engineLocation(location);
        engineLocation.setFileName(job->result().toString());
        //kDebug() << "setting location : " << engineLocation.prettyUrl();
      //  m_consumer->m_remoteEngines[pair]->setLocation(engineLocation);
    }
}

void ServiceMonitor::slotServiceReady(Plasma::Service *plasmoidService)
{
    //kDebug() << "service ready!";
    if (!m_consumer->m_engineNameForService.contains(plasmoidService)) {
        kDebug() << "no engine name for service!";
        kDebug() << "amount of services in map: " << m_consumer->m_engineNameForService.count();
    } else {
        //kDebug() << "value = " << m_consumer->m_engineNameForService.value(plasmoidService);
    }

    //kDebug() << "requesting dataengine!";
    KConfigGroup op = plasmoidService->operationDescription("DataEngine");
    op.writeEntry("EngineName", m_consumer->m_engineNameForService.value(plasmoidService));
    plasmoidService->startOperationCall(op);
    connect(plasmoidService, SIGNAL(finished(Plasma::ServiceJob*)),
            this, SLOT(slotJobFinished(Plasma::ServiceJob*)));
}

DataEngineConsumer::DataEngineConsumer()
    : m_monitor(new ServiceMonitor(this))
{
}

DataEngineConsumer::~DataEngineConsumer()
{
    foreach (const QString &engine, m_loadedEngines) {
        DataEngineManager::self()->unloadEngine(engine);
    }

    delete m_monitor;
}

void DataEngineConsumer::finishedWithEngine(const QString &name)
{
    if (m_loadedEngines.contains(name)) {
        DataEngineManager::self()->unloadEngine(name);
    }
}

DataEngine *DataEngineConsumer::dataEngine(const QString &name)
{
    if (m_loadedEngines.contains(name)) {
        return DataEngineManager::self()->engine(name);
    }

    DataEngine *engine = DataEngineManager::self()->loadEngine(name);
    if (engine->isValid()) {
        m_loadedEngines.insert(name);
    }

    return engine;
}

DataEngine *DataEngineConsumer::remoteDataEngine(const KUrl &location, const QString &name)
{
    Q_UNUSED(location);
    Q_UNUSED(name);
    return 0;
}


} // namespace Plasma

#include "dataengineconsumer_p.moc"