/*
    * Copyright 2007-2009 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * 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.
   */
  package org.kuali.rice.kim.document.authorization;
  
  import org.kuali.rice.kim.api.KimConstants;
  import org.kuali.rice.kim.api.identity.Person;
  import org.kuali.rice.kim.bo.ui.PersonDocumentGroup;
  import org.kuali.rice.kim.bo.ui.PersonDocumentRole;
  import org.kuali.rice.kim.document.IdentityManagementPersonDocument;
  import org.kuali.rice.krad.document.Document;
  import org.kuali.rice.krad.document.authorization.TransactionalDocumentAuthorizerBase;
  
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * This is a description of what this class does - shyu don't forget to fill this in. 
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class IdentityManagementKimDocumentAuthorizer extends TransactionalDocumentAuthorizerBase {
  	
  	public Map<String,Set<String>> getUnpopulateableGroups(Document document, Person user) {
  		Map<String,Set<String>> unpopulateableGroups = new HashMap<String,Set<String>>();
  		for (PersonDocumentGroup personDocumentGroup : ((IdentityManagementPersonDocument)document).getGroups()) {
  			Map<String,String> collectionOrFieldLevelPermissionDetails = new HashMap<String,String>();
  			collectionOrFieldLevelPermissionDetails.put(KimConstants.AttributeConstants.NAMESPACE_CODE, personDocumentGroup.getNamespaceCode());
  			collectionOrFieldLevelPermissionDetails.put(KimConstants.AttributeConstants.GROUP_NAME, personDocumentGroup.getGroupName());
  			if (!isAuthorizedByTemplate(document, KimConstants.NAMESPACE_CODE, KimConstants.PermissionTemplateNames.POPULATE_GROUP, user.getPrincipalId(), collectionOrFieldLevelPermissionDetails, null)) {
  				if (!unpopulateableGroups.containsKey(personDocumentGroup.getNamespaceCode())) {
  					unpopulateableGroups.put(personDocumentGroup.getNamespaceCode(), new HashSet<String>());
  				}
  				unpopulateableGroups.get(personDocumentGroup.getNamespaceCode()).add(personDocumentGroup.getGroupName());
  			}
  		}
  		return unpopulateableGroups;
  	}
  	
  	public Map<String,Set<String>> getUnassignableRoles(Document document, Person user) {
  		Map<String,Set<String>> unassignableRoles = new HashMap<String,Set<String>>();
  		for (PersonDocumentRole personDocumentRole : ((IdentityManagementPersonDocument)document).getRoles()) {
  			Map<String,String> collectionOrFieldLevelPermissionDetails = new HashMap<String,String>();
  			collectionOrFieldLevelPermissionDetails.put(KimConstants.AttributeConstants.NAMESPACE_CODE, personDocumentRole.getNamespaceCode());
  			collectionOrFieldLevelPermissionDetails.put(KimConstants.AttributeConstants.ROLE_NAME, personDocumentRole.getRoleName());
  			if (!isAuthorizedByTemplate(document, KimConstants.NAMESPACE_CODE, KimConstants.PermissionTemplateNames.ASSIGN_ROLE, user.getPrincipalId(), collectionOrFieldLevelPermissionDetails, null)) {
  				if (!unassignableRoles.containsKey(personDocumentRole.getNamespaceCode())) {
  					unassignableRoles.put(personDocumentRole.getNamespaceCode(), new HashSet<String>());
  				}
  				unassignableRoles.get(personDocumentRole.getNamespaceCode()).add(personDocumentRole.getRoleName());
  			}
  		}
  		return unassignableRoles;
  	}
  }