/*******************************************************************************
 * Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is 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:
 *     Exadel, Inc. and Red Hat, Inc. - initial API and implementation
 ******************************************************************************/ 
package org.jboss.tools.jst.web.ui.editors.webapp.form;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import org.jboss.tools.common.meta.XModelEntity;
import org.jboss.tools.common.meta.impl.XModelMetaDataImpl;
import org.jboss.tools.common.model.ui.forms.ArrayToMap;
import org.jboss.tools.common.model.ui.forms.FormData;
import org.jboss.tools.common.model.ui.forms.IFormData;
import org.jboss.tools.common.model.ui.forms.IFormLayoutData;
import org.jboss.tools.common.model.ui.forms.ModelFormLayoutData;

public class WebAppFormLayoutData implements IFormLayoutData {

	private final static IFormData[] FORM_LAYOUT_DEFINITIONS = new IFormData[] {
		WebAppFilterFormLayoutData.FILTER_FORM_DEFINITION,
		WebAppFilterFormLayoutData.FILTER_30_FORM_DEFINITION,
		WebAppServletFormLayoutData.SERVLET_FORM_DEFINITION,
		WebAppServletFormLayoutData.SERVLET_30_FORM_DEFINITION,
		WebAppWelcomeFormLayoutData.WELCOME_LIST_FORM_DEFINITION,
		WebAppAuthConstraintFormLayoutData.AUTH_CONSTRAINT_FORM_DEFINITION,
		WebAppSecurityConstraintFormLayoutData.SECURITY_CONSTRAINT_FORM_DEFINITION,
		WebAppSecurityConstraintFormLayoutData.SECURITY_CONSTRAINT_30_FORM_DEFINITION,
		WebAppLocaleEncodingFormLayoutData.LOCALE_ENC_MAPPING_FORM_DEFINITION,
		WebAppJspConfigFormLayoutData.JSP_CONFIG_FORM_DEFINITION,
		WebAppJspConfigFormLayoutData.JSP_CONFIG_30_FORM_DEFINITION,
		WebAppJspConfigFormLayoutData.PROPERTY_GROUP_FORM_DEFINITION,
		WebAppJspConfigFormLayoutData.PROPERTY_GROUP_30_FORM_DEFINITION,
		WebAppFoldersFormLayoutData.CONTEXT_PARAM_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.FILTER_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.FILTER_FOLDER_24_DEFINITION,
		WebAppFoldersFormLayoutData.FILTER_FOLDER_30_DEFINITION,
		WebAppFoldersFormLayoutData.LISTENER_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.LISTENER_FOLDER_24_DEFINITION,
		WebAppFoldersFormLayoutData.LIFECYCLE_FOLDER_24_DEFINITION,
		WebAppFoldersFormLayoutData.PERSISTENCE_FOLDER_24_DEFINITION,
		WebAppFoldersFormLayoutData.SERVLET_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.SERVLET_FOLDER_30_DEFINITION,
		WebAppFoldersFormLayoutData.MIME_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.ERROR_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.TAGLIB_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.RESOURCE_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.RESOURCE_FOLDER_30_DEFINITION,
		WebAppFoldersFormLayoutData.SECURITY_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.SECURITY_FOLDER_30_DEFINITION,
		WebAppFoldersFormLayoutData.ROLE_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.ENV_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.ENV_FOLDER_30_DEFINITION,
		WebAppFoldersFormLayoutData.EJB_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.EJB_FOLDER_30_DEFINITION,
		WebAppFoldersFormLayoutData.SERVICE_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.MESSAGE_FOLDER_DEFINITION,
		WebAppFoldersFormLayoutData.MESSAGE_FOLDER_30_DEFINITION,
		
		WebAppFileFormLayoutData.FILE_WEB_APP_23_DEFINITION,
		WebAppFileFormLayoutData.FILE_WEB_APP_24_DEFINITION,
		WebAppFileFormLayoutData.FILE_WEB_APP_25_DEFINITION,
	};

	private static Map FORM_LAYOUT_DEFINITION_MAP = Collections.synchronizedMap(new ArrayToMap(FORM_LAYOUT_DEFINITIONS));
	
	private static WebAppFormLayoutData INSTANCE = new WebAppFormLayoutData();
	
	public static IFormLayoutData getInstance() {
		return INSTANCE;
	}
	
	private WebAppFormLayoutData() {}

	public IFormData getFormData(String entityName) {
		IFormData data = (IFormData)FORM_LAYOUT_DEFINITION_MAP.get(entityName);
		if(data == null) {
			data = generateDefaultFormData(entityName);
		}
		return data;
	}
	
	private IFormData generateDefaultFormData(String entityName) {
		IFormData data = null;
		XModelEntity entity = XModelMetaDataImpl.getInstance().getEntity(entityName);
		if(entity != null) {
			data = generateDefaultFormData(entity);
		}
		if(data != null) {
			FORM_LAYOUT_DEFINITION_MAP.put(entityName, data);
		}
		return data;		
	}
	
	public IFormData generateDefaultFormData(XModelEntity entity) {
		String entityName = entity.getName();
		List<IFormData> list = new ArrayList<IFormData>();
		IFormData g = ModelFormLayoutData.createGeneralFormData(entity);
		if(g != null) list.add(g);

		if(entity.getName().startsWith("FileWebApp")) {
			list.add(WebAppFileFormLayoutData.CONTEXT_PARAM_FOLDER_DEFINITION);
		}

		for (int i = 0; i < entity.getChildren().length; i++) {
			String ce = entity.getChildren()[i].getName();
			if(WebAppListsFormLayoutData.singleChildLists.containsKey(ce)) {
				list.add(WebAppListsFormLayoutData.singleChildLists.get(ce));
			}
		}
		IFormData a = ModelFormLayoutData.createAdvancedFormData(entityName);
		if(a != null) list.add(a);
		IFormData[] ds = list.toArray(new IFormData[0]);
		IFormData data = new FormData(entityName, new String[0], ds);
		return data;
	}

}
