/*
 * Copyright (c) 2009 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: Plugin Loader class
 *
 */

// System Includes

#include <QDir>
#include "debugtraces.h"

#include <QLibraryInfo>
#include <QPluginLoader>
#include "unidatamodelloader.h"
#include "unidatamodelplugininterface.h"

// LOCAL CONSTANTS
const QString MMS_PLUGIN("unimmsdataplugin.qtplugin");
const QString SMS_PLUGIN("unismsdataplugin.qtplugin");
const QString BIO_PLUGIN("unibiomessagedataplugin.qtplugin");


//---------------------------------------------------------------
//UniDataModelLoader::UniDataModelLoader()
//@see header
//---------------------------------------------------------------
UniDataModelLoader::UniDataModelLoader()	
{
}

//---------------------------------------------------------------
//UniDataModelLoader::~UniDataModelLoader()
//@see header
//---------------------------------------------------------------
UniDataModelLoader::~UniDataModelLoader()
{
    // unload all qt-plugins
    int count = mPluginLoaderList.count();
    for (int i = 0; i < count; i++)
    {
        mPluginLoaderList.at(i)->unload();
    }
    mPluginLoaderList.clear();
}

//---------------------------------------------------------------
//UniDataModelLoader::getDataModelPlugin()
//@see header
//---------------------------------------------------------------
UniDataModelPluginInterface* UniDataModelLoader::getDataModelPlugin(
                                                                    ConvergedMessage::MessageType messageType)
{
   #ifdef _DEBUG
    QDir dir(QLibraryInfo::location(QLibraryInfo::PluginsPath));
    dir.cd("messaging\\datamodel");
#else
    // plugins directory setting for HARDWARE IMAGE
    QDir dir("Z:\\resource\\qt\\plugins\\messaging\\datamodel");
#endif

    QString pluginPath = dir.absolutePath();
#ifdef _DEBUG_TRACES_
    qDebug() << "Enter LoadPlugin path = " << pluginPath;
#endif

    // get the list of all plugins...
    QFileInfoList entries = dir.entryInfoList(QDir::Files | QDir::Readable);
    QString filePath = QString();
    foreach (QFileInfo entry, entries)
        {
            if (messageType == ConvergedMessage::Sms && entry.fileName()
                    == SMS_PLUGIN)
            {
                filePath = entry.absoluteFilePath();
                break;
            }
            else if (messageType == ConvergedMessage::Mms && entry.fileName()
                    == MMS_PLUGIN)
            {
                filePath = entry.absoluteFilePath();
                break;
            }
            else if (messageType == ConvergedMessage::BioMsg && entry.fileName()
                    == BIO_PLUGIN)
            {
                filePath = entry.absoluteFilePath();
                break;
            }
        }

    if (!filePath.isEmpty())
    {
        QPluginLoader* loader = new QPluginLoader(filePath);
        UniDataModelPluginInterface* dataModelPluginInterface = qobject_cast<
                UniDataModelPluginInterface*> (loader->instance());
        if (dataModelPluginInterface)
        {
            mPluginLoaderList << loader;
            return dataModelPluginInterface;
        }
    }
    return NULL;
}