/*******************************************************************************
 * Copyright (c) 2003, 2005 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.web.project.facet;

import java.util.Set;
import java.util.StringTokenizer;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.jst.common.project.facet.IJavaFacetInstallDataModelProperties;
import org.eclipse.jst.j2ee.internal.common.J2EEVersionUtil;
import org.eclipse.jst.j2ee.internal.plugin.IJ2EEModuleConstants;
import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;
import org.eclipse.jst.j2ee.internal.project.J2EEProjectUtilities;
import org.eclipse.jst.j2ee.internal.project.ProjectSupportResourceHandler;
import org.eclipse.jst.j2ee.project.facet.J2EEModuleFacetInstallDataModelProvider;
import org.eclipse.wst.common.componentcore.datamodel.properties.IFacetProjectCreationDataModelProperties;
import org.eclipse.wst.common.componentcore.datamodel.properties.IFacetProjectCreationDataModelProperties.FacetDataModelMap;
import org.eclipse.wst.common.componentcore.internal.util.IModuleConstants;
import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;

public class WebFacetInstallDataModelProvider extends J2EEModuleFacetInstallDataModelProvider implements IWebFacetInstallDataModelProperties {

	public Set getPropertyNames() {
		Set names = super.getPropertyNames();
		names.add(CONTEXT_ROOT);
		names.add(SOURCE_FOLDER);
		return names;
	}

	public Object getDefaultProperty(String propertyName) {
		if (propertyName.equals(ADD_TO_EAR)) {
			return Boolean.FALSE;
		} else if (propertyName.equals(CONFIG_FOLDER)) {
			return "WebContent";
		} else if (propertyName.equals(SOURCE_FOLDER)) {
			return "src";
		} else if (propertyName.equals(CONTEXT_ROOT)) {
			return getProperty(FACET_PROJECT_NAME);
		} else if (propertyName.equals(FACET_ID)) {
			return J2EEProjectUtilities.DYNAMIC_WEB;
		} else if (propertyName.equals(MODULE_URI)) {
			String projectName = model.getStringProperty(FACET_PROJECT_NAME);
			return projectName + IJ2EEModuleConstants.WAR_EXT; 
		}
		return super.getDefaultProperty(propertyName);
	}

	public boolean propertySet(String propertyName, Object propertyValue) {
		if (ADD_TO_EAR.equals(propertyName)) {
			model.notifyPropertyChange(CONTEXT_ROOT, IDataModel.ENABLE_CHG);
		} else if (FACET_PROJECT_NAME.equals(propertyName)) {
			model.notifyPropertyChange(CONTEXT_ROOT, IDataModel.VALID_VALUES_CHG);
		} else if (propertyName.equals(CONFIG_FOLDER)) {
			return true;
		} else if (propertyName.equals(SOURCE_FOLDER)) {
			IDataModel masterModel = (IDataModel) model.getProperty(MASTER_PROJECT_DM);
			if (masterModel != null) {
				FacetDataModelMap map = (FacetDataModelMap) masterModel.getProperty(IFacetProjectCreationDataModelProperties.FACET_DM_MAP);
				IDataModel javaModel = map.getFacetDataModel(IModuleConstants.JST_JAVA);
				if (javaModel != null)
					javaModel.setProperty(IJavaFacetInstallDataModelProperties.SOURCE_FOLDER_NAME, propertyValue);
			}
		}
		return super.propertySet(propertyName, propertyValue);
	}

	public boolean isPropertyEnabled(String propertyName) {
		return super.isPropertyEnabled(propertyName);
	}

	protected int convertFacetVersionToJ2EEVersion(IProjectFacetVersion version) {
		return J2EEVersionUtil.convertWebVersionStringToJ2EEVersionID(version.getVersionString());
	}

	public IStatus validate(String name) {
		if (name.equals(CONTEXT_ROOT) && getBooleanProperty(ADD_TO_EAR)) {
			return validateContextRoot(getStringProperty(CONTEXT_ROOT));
		}
		return super.validate(name);
	}

	protected IStatus validateContextRoot(String contextRoot) {
		if (contextRoot.equals("") || contextRoot == null) { //$NON-NLS-1$
			return J2EEPlugin.newErrorStatus(ProjectSupportResourceHandler.getString(ProjectSupportResourceHandler.Context_Root_cannot_be_empty_2, new Object[]{contextRoot}), null); //$NON-NLS-1$
		} else if (contextRoot.trim().equals(contextRoot)) {
			StringTokenizer stok = new StringTokenizer(contextRoot, "."); //$NON-NLS-1$
			while (stok.hasMoreTokens()) {
				String token = stok.nextToken();
				for (int i = 0; i < token.length(); i++) {
					if (!(token.charAt(i) == '_') && !(token.charAt(i) == '-') && !(token.charAt(i) == '/') && Character.isLetterOrDigit(token.charAt(i)) == false) {
						Object[] invalidChar = new Object[]{(new Character(token.charAt(i))).toString()};
						String errorStatus = ProjectSupportResourceHandler.getString(ProjectSupportResourceHandler.The_character_is_invalid_in_a_context_root, invalidChar); //$NON-NLS-1$
						return J2EEPlugin.newErrorStatus(errorStatus, null);
					}
				}
			}
		} else
			return J2EEPlugin.newErrorStatus(ProjectSupportResourceHandler.getString(ProjectSupportResourceHandler.Names_cannot_begin_or_end_with_whitespace_5, new Object[]{contextRoot}), null); //$NON-NLS-1$
		return OK_STATUS;
	}
}