/**
 * This file Copyright (c) 2011-2012 Magnolia International
 * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
 *
 *
 * This file is dual-licensed under both the Magnolia
 * Network Agreement and the GNU General Public License.
 * You may elect to use one or the other of these licenses.
 *
 * This file is distributed in the hope that it will be
 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
 * Redistribution, except as permitted by whichever of the GPL
 * or MNA you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or
 * modify this file under the terms of the GNU General
 * Public License, Version 3, as published by the Free Software
 * Foundation.  You should have received a copy of the GNU
 * General Public License, Version 3 along with this program;
 * if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 2. For the Magnolia Network Agreement (MNA), this file
 * and the accompanying materials are made available under the
 * terms of the MNA which accompanies this distribution, and
 * is available at http://www.magnolia-cms.com/mna.html
 *
 * Any modifications to this file must keep this entire header
 * intact.
 *
 */
package info.magnolia.module;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import info.magnolia.module.model.ModuleDefinition;
import info.magnolia.objectfactory.Classes;
import info.magnolia.objectfactory.ComponentProvider;
import info.magnolia.objectfactory.configuration.ComponentConfigurer;
import info.magnolia.objectfactory.configuration.ComponentProviderConfiguration;

/**
 * Guice configuration module that binds providers for module classes.
 *
 * @version $Id$
 */
public class ModuleInstancesConfigurer implements ComponentConfigurer {

    private static final Logger log = LoggerFactory.getLogger(ModuleInstancesConfigurer.class);

    @Override
    public void doWithConfiguration(ComponentProvider parentComponentProvider, ComponentProviderConfiguration configuration) {

        ModuleRegistry moduleRegistry = parentComponentProvider.getComponent(ModuleRegistry.class);

        for (String moduleName : moduleRegistry.getModuleNames()) {
            final ModuleDefinition moduleDefinition = moduleRegistry.getDefinition(moduleName);
            if (moduleDefinition.getClassName() != null) {
                final Class<?> moduleClass;
                try {
                    moduleClass = Classes.getClassFactory().forName(moduleDefinition.getClassName());
                } catch (ClassNotFoundException e) {
                    log.error("Module class not found :" + moduleDefinition.getClassName(), e);
                    continue;
                }
                ModuleInstanceProvider provider = new ModuleInstanceProvider(moduleDefinition.getName());
                configuration.registerInstance(moduleClass, provider);
            }
        }
    }
}