/*
 * Copyright 2015-Present Entando Inc. (http://www.entando.com) All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */
package com.agiletec.plugins.jacms.apsadmin.tags;

import javax.servlet.http.HttpSession;

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

import com.agiletec.aps.system.SystemConstants;
import com.agiletec.aps.system.services.user.UserDetails;
import com.agiletec.aps.util.ApsWebApplicationUtils;
import com.agiletec.apsadmin.tags.EntityTypeInfoTag;
import com.agiletec.plugins.jacms.aps.system.JacmsSystemConstants;
import com.agiletec.plugins.jacms.aps.system.services.content.helper.IContentAuthorizationHelper;
import com.agiletec.plugins.jacms.aps.system.services.content.model.Content;

/**
 * Returns a content type (or one of its property) through the code.
 * You can choose whether to return the entire object (leaving the attribute "property" empty) or a single property.
 * The names of the available property of "Content Type": "typeCode", "typeDescr", 
 * "attributeMap" (map of attributes indexed by the name), "attributeList" (list of attributes).
 * The special property "isAuthToEdit" return true if the current user is allowed to edit a content of the given type.
 * @author E.Santoboni
 */
public class ContentTypeInfoTag extends EntityTypeInfoTag {
	
	private static final Logger _logger = LoggerFactory.getLogger(ContentTypeInfoTag.class);
	
	@Override
	protected String getEntityManagerName() {
		return JacmsSystemConstants.CONTENT_MANAGER;
	}
	
	@Override
	protected Object getPropertyValue(Object masterObject, String propertyValue) {
		if (null == propertyValue || !propertyValue.equals("isAuthToEdit")) {
			return super.getPropertyValue(masterObject, propertyValue);
		}
		try {
			HttpSession session = this.pageContext.getSession();
			UserDetails currentUser = (UserDetails) session.getAttribute(SystemConstants.SESSIONPARAM_CURRENT_USER);
			Content prototype = (Content) masterObject;
			IContentAuthorizationHelper helper = 
					(IContentAuthorizationHelper) ApsWebApplicationUtils.getBean(JacmsSystemConstants.CONTENT_AUTHORIZATION_HELPER, this.pageContext);
			return helper.isAuthToEdit(currentUser, prototype);
		} catch (Throwable t) {
			_logger.error("Error extracting property value : Master Object '{}' - property '{}'",masterObject.getClass().getName(), propertyValue,  t);
		}
		return null;
	}
    
}