/**
    * Copyright 2005-2014 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.test.service;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  
  import java.sql.Timestamp;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import javax.xml.namespace.QName;
  
  import org.junit.Test;
  import org.kuali.rice.core.api.criteria.QueryByCriteria;
  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
  import org.kuali.rice.kim.api.KimApiConstants;
  import org.kuali.rice.kim.api.KimConstants.KimGroupMemberTypes;
  import org.kuali.rice.kim.api.group.Group;
  import org.kuali.rice.kim.api.group.GroupMember;
  import org.kuali.rice.kim.api.group.GroupService;
  import org.kuali.rice.kim.impl.KIMPropertyConstants;
  import org.kuali.rice.kim.impl.group.GroupMemberBo;
  import org.kuali.rice.kim.test.KIMTestCase;
  import org.kuali.rice.kns.service.KNSServiceLocator;
  import org.kuali.rice.krad.data.KradDataServiceLocator;
  import org.kuali.rice.krad.service.BusinessObjectService;
  import org.springframework.util.CollectionUtils;
  
  /**
   * Unit test for {@link groupServiceImpl}
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class GroupUpdateServiceImplTest extends KIMTestCase {
  
  	private GroupService groupService;
  	private BusinessObjectService businessObjectService;
  
  	@Override
      public void setUp() throws Exception {
  		super.setUp();
  		groupService = (GroupService)GlobalResourceLoader.getService(
                  new QName(KimApiConstants.Namespaces.KIM_NAMESPACE_2_0, KimApiConstants.ServiceNames.GROUP_SERVICE_SOAP));
  		businessObjectService = KNSServiceLocator.getBusinessObjectService();
  	}
  
  	@Test
  	public void testCreateGroup() {
  		Group groupInfo = createGroup();
  
  		Group result = groupService.getGroupByNamespaceCodeAndName("KUALI", "gA");
  
  		assertEquals(groupInfo.isActive(), result.isActive());
  		assertTrue(groupInfo.getNamespaceCode().equals(result.getNamespaceCode()));
  		assertTrue(groupInfo.getName().equals(result.getName()));
  		assertTrue(groupInfo.getKimTypeId().equals(result.getKimTypeId()));
  	}
  
  	@Test
  	public void testRemoveGroupFromGroup() {
  		List<String> preGroupIds = groupService.getDirectMemberGroupIds("g1");
  
  		assertTrue( "g1 must contain group g2", preGroupIds.contains( "g2" ) );
  
  		groupService.removeGroupFromGroup("g2", "g1");
  
  		List<String> postGroupIds = groupService.getDirectMemberGroupIds("g1");
  
  		assertFalse( "g1 must not contain group g2", postGroupIds.contains( "g2" ) );
  
  		// add it back in, and the two lists should contain the same elements
          postGroupIds = new ArrayList<String>(postGroupIds);
  		postGroupIds.add("g2");
  		assertTrue(postGroupIds.containsAll(preGroupIds) && preGroupIds.containsAll(postGroupIds));
  
  		// historical information should be preserved
  		List<GroupMemberBo> members = getActiveAndInactiveGroupTypeMembers("g1");
  		GroupMemberBo g2 = null;
  		for (GroupMemberBo member : members) {
  			if (member.getMemberId().equals("g2")) {
 				g2 = member;
 			}
 		}
 
 		// it exists
 		assertNotNull("should have found g2", g2);
 		// it is inactive
 		assertFalse("g2 should be inactive", g2.isActive(new Timestamp(System.currentTimeMillis())));
 	}
 
 	@Test
 	public void testRemovePrincipalFromGroup() {
 		List<String> preDirectPrincipalMemberIds = groupService.getDirectMemberPrincipalIds("g2");
 		assertTrue( "p1 must be direct member of g2", preDirectPrincipalMemberIds.contains("p1") );
 
 		groupService.removePrincipalFromGroup("p1", "g2");
 
 		List<String> postDirectPrincipalMemberIds = groupService.getDirectMemberPrincipalIds("g2");
 		assertFalse( "p1 must no longer be a direct member of g2", postDirectPrincipalMemberIds.contains("p1") );
 
 		// add p1 back to the list, and pre & post should contain the same elements
         postDirectPrincipalMemberIds = new ArrayList<String>(postDirectPrincipalMemberIds);
 		postDirectPrincipalMemberIds.add("p1");
 		assertTrue(preDirectPrincipalMemberIds.containsAll(postDirectPrincipalMemberIds) &&
 				postDirectPrincipalMemberIds.containsAll(preDirectPrincipalMemberIds));
 
 		// historical information should be preserved
 		List<GroupMemberBo> members = getActiveAndInactivePrincipalTypeMembers("g2");
 		GroupMemberBo p1 = null;
 		for (GroupMemberBo member : members) {
 			if (member.getMemberId().equals("p1")) {
 				p1 = member;
 			}
 		}
 
 		// it exists
 		assertNotNull("should have found p1", p1);
 		// it is inactive
 		assertFalse("p1 should be inactive", p1.isActive(new Timestamp(System.currentTimeMillis())));
 	}
 
 	@Test
 	public void testRemoveGroupMembers() {
 		List<String> before = groupService.getMemberPrincipalIds("g1");
 
 		groupService.addPrincipalToGroup("p1", "g1");
 
 		assertTrue( "p1 must be direct member of g1", groupService.isDirectMemberOfGroup("p1", "g1") );
 		assertTrue( "g2 must be direct member of g1", groupService.isGroupMemberOfGroup("g2", "g1") );
 
 		groupService.removeAllMembers("g1");
 
 		List<GroupMember> memberInfos = groupService.getMembersOfGroup("g1");
 		assertTrue("should be no active members", CollectionUtils.isEmpty(memberInfos));
 
 		// historical information should be preserved
 		List<GroupMemberBo> members = getActiveAndInactivePrincipalTypeMembers("g1");
 		members.addAll(getActiveAndInactiveGroupTypeMembers("g1"));
 
 		GroupMemberBo p1 = null;
 		GroupMemberBo g2 = null;
 		for (GroupMemberBo member : members) {
 			if (member.getMemberId().equals("p1")) {
 				p1 = member;
 			}
 			if (member.getMemberId().equals("g2")) {
 				g2 = member;
 			}
 		}
 
 		// it exists
 		assertNotNull("should have found p1", p1);
 		assertNotNull("should have found g2", g2);
 		// it is inactive
 		assertFalse("p1 should be inactive", p1.isActive(new Timestamp(System.currentTimeMillis())));
 		assertFalse("g2 should be inactive", g2.isActive(new Timestamp(System.currentTimeMillis())));
 	}
 
 	/* Stubs to test other groupService methods: */
 	@Test
 	public void testUpdateGroup() {
 
         Group group = createGroup();
         Group.Builder builder = Group.Builder.create(group);
 		builder.setDescription("This is a new description.  It is useful.");
 
 
 		groupService.updateGroup(group.getId(), builder.build());
 
 		Group result = groupService.getGroupByNamespaceCodeAndName("KUALI", "gA");
 
 		assertEquals(group.isActive(), result.isActive());
 		assertEquals(group.getNamespaceCode(), result.getNamespaceCode());
 		assertEquals(group.getName(), result.getName());
 		assertEquals(group.getKimTypeId(), result.getKimTypeId());
         assertEquals(builder.getDescription(), result.getDescription());
     }
 
 	@Test
 	public void testAddGroupToGroup() {
         Group group = createGroup();
 
         //make sure g1 is not a member of gA
         assertFalse(groupService.isGroupMemberOfGroup("g1", group.getId()));
 
         //add g1 to gA
         groupService.addGroupToGroup("g1", group.getId());
 
         //make sure g1 is now a member of gA
         groupService.isGroupMemberOfGroup("g1", group.getId());
 
     }
 
 	@Test
 	public void testAddPrincipalToGroup() {
         Group group = createGroup();
 
         //make sure g1 is not a member of gA
         assertFalse(groupService.isMemberOfGroup("p1", group.getId()));
 
         //add g1 to gA
         groupService.addPrincipalToGroup("p1", group.getId());
 
         //make sure g1 is now a member of gA
         groupService.isMemberOfGroup("p1", group.getId());
     }
 
 
 	private List<GroupMemberBo> getActiveAndInactiveGroupTypeMembers(String groupId) {
 
 		Map<String,Object> criteria = new HashMap<String,Object>();
         criteria.put(KIMPropertyConstants.GroupMember.GROUP_ID, groupId);
         criteria.put(KIMPropertyConstants.GroupMember.MEMBER_TYPE_CODE, KimGroupMemberTypes.GROUP_MEMBER_TYPE.getCode());
 
         return new ArrayList<GroupMemberBo>(KradDataServiceLocator.getDataObjectService().findMatching(GroupMemberBo.class, QueryByCriteria.Builder.andAttributes(criteria).build()).getResults());
 	}
 
 	private List<GroupMemberBo> getActiveAndInactivePrincipalTypeMembers(String groupId) {
 
 		Map<String,Object> criteria = new HashMap<String,Object>();
         criteria.put(KIMPropertyConstants.GroupMember.GROUP_ID, groupId);
         criteria.put(KIMPropertyConstants.GroupMember.MEMBER_TYPE_CODE, KimGroupMemberTypes.PRINCIPAL_MEMBER_TYPE.getCode());
 
         return new ArrayList<GroupMemberBo>(KradDataServiceLocator.getDataObjectService().findMatching(GroupMemberBo.class, QueryByCriteria.Builder.andAttributes(criteria).build()).getResults());
 	}
 
     private Group createGroup() {
         Group.Builder groupInfo = Group.Builder.create("KUALI", "gA", "1");
 		groupInfo.setActive(true);
 
 		return groupService.createGroup(groupInfo.build());
     }
 }