/*******************************************************************************
 * Copyright (c) 2005, 2007 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jst.j2ee.internal.earcreation;

import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jst.j2ee.internal.common.J2EEVersionUtil;
import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;
import org.eclipse.jst.j2ee.internal.plugin.J2EEPreferences;
import org.eclipse.jst.j2ee.project.facet.IJ2EEFacetConstants;
import org.eclipse.jst.j2ee.project.facet.J2EEFacetInstallDataModelProvider;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;

public class EarFacetInstallDataModelProvider extends J2EEFacetInstallDataModelProvider implements IEarFacetInstallDataModelProperties {

	public Set getPropertyNames() {
		Set names = super.getPropertyNames();
		names.add(CONTENT_DIR);
		names.add(J2EE_PROJECTS_LIST);
		names.add(JAVA_PROJECT_LIST);
		return names;
	}

	public Object getDefaultProperty(String propertyName) {
		if (propertyName.equals(FACET_ID)) {
			return ENTERPRISE_APPLICATION;
		} else if (propertyName.equals(CONTENT_DIR)) {
			return J2EEPlugin.getDefault().getJ2EEPreferences().getString(J2EEPreferences.Keys.APPLICATION_CONTENT_FOLDER);
		} else if (propertyName.equals(J2EE_PROJECTS_LIST) || propertyName.equals(JAVA_PROJECT_LIST)) {
			return Collections.EMPTY_LIST;
		} else if(propertyName.equals(GENERATE_DD)){
			IProjectFacetVersion facetVersion = (IProjectFacetVersion)getProperty(FACET_VERSION);
			if(facetVersion == IJ2EEFacetConstants.ENTERPRISE_APPLICATION_50){
				return Boolean.valueOf(J2EEPlugin.getDefault().getJ2EEPreferences().getBoolean(J2EEPreferences.Keys.APPLICATION_GENERATE_DD));
			}
			return Boolean.TRUE;
		}
		return super.getDefaultProperty(propertyName);
	}

	public IStatus validate(String name) {
		if (name.equals(J2EE_PROJECTS_LIST)) {
			return validateTargetComponentVersion((List) model.getProperty(J2EE_PROJECTS_LIST));
		} else if (name.equals(CONTENT_DIR)) {
			return validateFolderName(getStringProperty(CONTENT_DIR));
		}
		return super.validate(name);
	}

	private IStatus validateTargetComponentVersion(List list) {
		int earVersion = getJ2EEVersion();
		for (Iterator iter = list.iterator(); iter.hasNext();) {
			IProject handle = (IProject) iter.next();
			IVirtualComponent comp = ComponentCore.createComponent(handle.getProject());
			if (comp == null) return OK_STATUS; //Not a faceted project, so version not relevant
			int compVersion = J2EEVersionUtil.convertVersionStringToInt(comp);
			if (earVersion < compVersion) {
				String errorStatus = "The Module specification level of " + handle.getName() + ", is incompatible with the containing EAR version"; //$NON-NLS-1$
				return J2EEPlugin.newErrorStatus(errorStatus, null);
			}
		}
		return OK_STATUS;
	}

	protected int convertFacetVersionToJ2EEVersion(IProjectFacetVersion version) {
		return J2EEVersionUtil.convertVersionStringToInt(version.getVersionString());
	}
}