/*

  * Copyright 2007-2008 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.rules.ui;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.util.RiceKeyConstants;

 import org.kuali.rice.kim.bo.ui.PersonDocumentGroup;

 import org.kuali.rice.kim.document.IdentityManagementPersonDocument;

 import org.kuali.rice.kim.rule.event.ui.AddGroupEvent;

 import org.kuali.rice.kim.rule.ui.AddGroupRule;

 import org.kuali.rice.kim.util.KimConstants;

 import org.kuali.rice.krad.rules.DocumentRuleBase;

 import org.kuali.rice.krad.util.GlobalVariables;

 import java.util.HashMap;

 import java.util.Map;

 /**

  * 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 PersonDocumentGroupRule extends DocumentRuleBase implements AddGroupRule {

     protected static final String NEW_GROUP = "newGroup";

     protected static final String GROUP_ID_ERROR_PATH = NEW_GROUP+".groupId";

         public boolean processAddGroup(AddGroupEvent addGroupEvent) {

                 IdentityManagementPersonDocument document = (IdentityManagementPersonDocument)addGroupEvent.getDocument();

                 PersonDocumentGroup newGroup = addGroupEvent.getGroup();

             boolean rulePassed = true;

             rulePassed = validAssignGroup(document, newGroup);

 //            List<String> groupIds = KIMServiceLocatorInternal.getUiDocumentService().getPopulatableGroupIds();

         if (newGroup == null || StringUtils.isBlank(newGroup.getGroupId())) {

             rulePassed = false;

             GlobalVariables.getMessageMap().putError(GROUP_ID_ERROR_PATH, RiceKeyConstants.ERROR_EMPTY_ENTRY, new String[] {"Group"});

         } else {

                     for (PersonDocumentGroup group : document.getGroups()) {

                             if (group.getGroupId().equals(newGroup.getGroupId())) {

                             rulePassed = false;

                             GlobalVariables.getMessageMap().putError(GROUP_ID_ERROR_PATH, RiceKeyConstants.ERROR_DUPLICATE_ENTRY, new String[] {"Group"});

                             }

                     }

         }

 //        if (rulePassed) {

 //                if (groupIds.isEmpty() || !groupIds.contains(newGroup.getGroupId())) {

 //                errorMap.putError(errorPath+".groupId", RiceKeyConstants.ERROR_POPULATE_GROUP, new String[] {newGroup.getGroupId()});

 //                rulePassed = false;

 //                }   

 //        }

         // check it before save ??

         //rulePassed &= validateActiveDate(newGroup.getActiveFromDate(), newGroup.getActiveToDate());

                 return rulePassed;

         } 

         protected boolean validAssignGroup(IdentityManagementPersonDocument document, PersonDocumentGroup newGroup){

         boolean rulePassed = true;

         Map<String,String> additionalPermissionDetails = new HashMap<String,String>();

         additionalPermissionDetails.put(KimConstants.AttributeConstants.NAMESPACE_CODE, newGroup.getNamespaceCode());

         additionalPermissionDetails.put(KimConstants.AttributeConstants.GROUP_NAME, newGroup.getGroupName());

                 if(!getDocumentHelperService().getDocumentAuthorizer(document).isAuthorizedByTemplate(

                                 document, KimConstants.NAMESPACE_CODE, KimConstants.PermissionTemplateNames.POPULATE_GROUP, 

                                 GlobalVariables.getUserSession().getPrincipalId(), additionalPermissionDetails, null)){

                     GlobalVariables.getMessageMap().putError(GROUP_ID_ERROR_PATH, 

                                     RiceKeyConstants.ERROR_ASSIGN_GROUP, 

                                     new String[] {newGroup.getNamespaceCode(), newGroup.getGroupName()});

             rulePassed = false;

                 }

                 return rulePassed;

         }

 }