/*

  * 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 responsibilitys and

  * limitations under the License.

  */

 package org.kuali.rice.kim.impl.responsibility;

 import org.apache.commons.lang.StringUtils;

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

 import org.kuali.rice.kim.api.responsibility.Responsibility;

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

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

 import org.kuali.rice.kim.impl.responsibility.ResponsibilityBo;

 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 KimDocumentResponsibilityRule extends DocumentRuleBase implements AddResponsibilityRule {

         public static final String ERROR_PATH = "document.responsibility.responsibilityId";

         public boolean processAddResponsibility(AddResponsibilityEvent addResponsibilityEvent) {

                 KimDocumentRoleResponsibility newResponsibility = addResponsibilityEvent.getResponsibility();

                 if(newResponsibility==null){

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

                         return false;

                 }

                 ResponsibilityBo kimResponsibilityImpl = newResponsibility.getKimResponsibility();

                 if(kimResponsibilityImpl==null){

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

                         return false;

                 }

                 IdentityManagementRoleDocument document = (IdentityManagementRoleDocument)addResponsibilityEvent.getDocument();                

             boolean rulePassed = true;

                 if (!hasPermissionToGrantResponsibility(ResponsibilityBo.to(kimResponsibilityImpl), document)) {

             GlobalVariables.getMessageMap().putError(ERROR_PATH, RiceKeyConstants.ERROR_ASSIGN_RESPONSIBILITY, 

                             new String[] {kimResponsibilityImpl.getNamespaceCode(), kimResponsibilityImpl.getTemplate().getName()});

             return false;

                 }

                 if (newResponsibility == null || StringUtils.isBlank(newResponsibility.getResponsibilityId())) {

             rulePassed = false;

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

         } else {

                 int i = 0;

                     for (KimDocumentRoleResponsibility responsibility: document.getResponsibilities()) {

                             if (responsibility.getResponsibilityId().equals(newResponsibility.getResponsibilityId())) {

                             rulePassed = false;

                             GlobalVariables.getMessageMap().putError("document.responsibilities["+i+"].responsibilityId", RiceKeyConstants.ERROR_DUPLICATE_ENTRY, new String[] {"Responsibility"});

                             }

                             i++;

                     }

         }

                 return rulePassed;

         } 

         public boolean hasPermissionToGrantResponsibility(Responsibility kimResponsibilityInfo, IdentityManagementRoleDocument document){

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

                 responsibilityDetails.put(KimConstants.AttributeConstants.NAMESPACE_CODE, kimResponsibilityInfo.getNamespaceCode());

                 responsibilityDetails.put(KimConstants.AttributeConstants.RESPONSIBILITY_NAME, kimResponsibilityInfo.getName());

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

                                 document, 

                                 KimConstants.NAMESPACE_CODE, 

                                 KimConstants.PermissionTemplateNames.GRANT_RESPONSIBILITY, 

                                 GlobalVariables.getUserSession().getPerson().getPrincipalId(), 

                                 responsibilityDetails, null)) {

             return false;

                 }

                 return true;

         }

 }