/*
 * ============LICENSE_START==========================================
 * ONAP Portal SDK
 * ===================================================================
 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * ===================================================================
 *
 * Unless otherwise specified, all software contained herein is licensed
 * under the Apache License, Version 2.0 (the "License");
 * you may not use this software except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *             http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Unless otherwise specified, all documentation contained herein is licensed
 * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
 * you may not use this documentation except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *             https://creativecommons.org/licenses/by/4.0/
 *
 * Unless required by applicable law or agreed to in writing, documentation
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * ============LICENSE_END============================================
 *
 * 
 */
package org.onap.portalsdk.core.menu;

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

import javax.servlet.http.HttpServletRequest;

import org.onap.portalsdk.core.domain.FusionObject;
import org.onap.portalsdk.core.domain.MenuData;
import org.onap.portalsdk.core.service.DataAccessService;
import org.onap.portalsdk.core.util.SystemProperties;
import org.onap.portalsdk.core.web.support.UserUtils;
import org.springframework.beans.factory.annotation.Autowired;

@SuppressWarnings("rawtypes")
public class MenuBuilder implements FusionObject {

	@Autowired
	private DataAccessService dataAccessService;

	@SuppressWarnings("unchecked")
	public Set getMenu(String menuSetName, DataAccessService dataAccessService) {

		Set menu = null;

		HashMap params = new HashMap();

		params.put("menu_set_cd", menuSetName);

		// execute a query of the latest configuration of the FN_MENU table for the
		// given menu_set_cd.
		List menuItems = dataAccessService
				.executeNamedQuery(SystemProperties.getProperty(SystemProperties.MENU_QUERY_NAME), params, null);

		Iterator i = menuItems.iterator();
		if (i.hasNext()) {
			MenuData root = (MenuData) i.next();
			menu = root.getChildMenus();
		}

		return menu;
	}

	@SuppressWarnings("unchecked")
	public Set getMenu(String menuSetName) {

		Set menu = null;

		HashMap params = new HashMap();

		params.put("menu_set_cd", menuSetName);

		// execute a query of the latest configuration of the FN_MENU table for the
		// given menu_set_cd.
		List menuItems = getDataAccessService()
				.executeNamedQuery(SystemProperties.getProperty(SystemProperties.MENU_QUERY_NAME), params, null);

		Iterator i = menuItems.iterator();
		if (i.hasNext()) {
			MenuData root = (MenuData) i.next();
			menu = root.getChildMenus();
		}

		return menu;
	}

	public static Set filterMenu(Set menus, HttpServletRequest request) {
		Iterator j = menus.iterator();

		while (j.hasNext()) {
			MenuData menuItem = (MenuData) j.next();

			if (!UserUtils.isAccessible(request, menuItem.getFunctionCd())) {
				// remove the menu if the user doesn't have access to it
				j.remove();
			} else {
				// if an accessible menu has a child menu, let's filter that recursively

				Set childMenus = menuItem.getChildMenus();
				if (childMenus != null && ! childMenus.isEmpty()) {
					filterMenu(childMenus, request);
				}

			}
		}

		return menus;
	}

	public static String getUrlHtml(MenuData menuData) {
		String html = "";

		if (menuData.getExternalUrl() != null && menuData.getExternalUrl().length() > 0) {
			html = menuData.getExternalUrl();
		} else if (menuData.getServlet() != null && menuData.getServlet().length() > 0) {
			html = "/" + menuData.getServlet();
		} else if (menuData.getAction() != null && menuData.getAction().length() > 0) {
			html = "/" + menuData.getAction();
		}

		return html;
	}

	public static String getTargetHtml(MenuData menuData) {
		String html = "";

		if (menuData.getTarget() != null && menuData.getTarget().length() > 0) {
			html = "target=\"" + menuData.getTarget() + "\"";
		}

		return html;
	}

	public static String getQueryStringHtml(MenuData menuData) {
		String html = "";

		if (menuData.getQueryString() != null && menuData.getQueryString().length() > 0) {
			html = "?" + menuData.getQueryString();
		}

		return html;
	}

	public DataAccessService getDataAccessService() {
		return dataAccessService;
	}

	public void setDataAccessService(DataAccessService dataAccessService) {
		this.dataAccessService = dataAccessService;
	}

}