/**

  * Copyright 2010 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.osedu.org/licenses/ECL-2.0

  *

  * 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.student.common.ui.server.gwt;

 import java.util.List;

 import org.kuali.rice.kim.bo.types.dto.AttributeSet;

 import org.kuali.student.common.ui.client.service.DocumentRpcService;

 import org.kuali.student.core.document.dto.DocumentInfo;

 import org.kuali.student.core.document.dto.RefDocRelationInfo;

 import org.kuali.student.core.document.service.DocumentService;

 import org.kuali.student.core.dto.StatusInfo;

 import org.kuali.student.core.exceptions.DoesNotExistException;

 import org.kuali.student.core.rice.StudentIdentityConstants;

 import org.kuali.student.core.rice.authorization.PermissionType;

 public class DocumentRpcGwtServlet extends BaseRpcGwtServletAbstract<DocumentService> implements DocumentRpcService{

         private static final long serialVersionUID = 1L;

         public DocumentInfo getDocument(String documentId) throws Exception{

                 return service.getDocument(documentId);

         }

         public List<DocumentInfo> getDocumentsByIdList(List<String> documentIdList)throws Exception{

                 return service.getDocumentsByIdList(documentIdList);

         }

         public StatusInfo deleteDocument(String documentId) throws Exception{

                 return service.deleteDocument(documentId);

         }

     public DocumentInfo updateDocument(String documentId, DocumentInfo documentInfo) throws Exception{

             return service.updateDocument(documentId, documentInfo);

     }

         public StatusInfo addDocumentCategoryToDocument(String documentId, String documentCategoryKey) throws Exception{

                 return service.addDocumentCategoryToDocument(documentId, documentCategoryKey);

         }

     public StatusInfo removeDocumentCategoryFromDocument(String documentId, String documentCategoryKey) throws Exception{

             return service.removeDocumentCategoryFromDocument(documentId, documentCategoryKey);

     }

         @Override

     public Boolean isAuthorizedUploadDocuments(String id, String referenceTypeKey) {

                 if (id != null && (!"".equals(id.trim()))) {

                         String user = getCurrentUser();

             AttributeSet permissionDetails = new AttributeSet(StudentIdentityConstants.KS_REFERENCE_TYPE_KEY, referenceTypeKey);

                 if (getPermissionService().isPermissionDefinedForTemplateName(PermissionType.UPLOAD_DOCUMENTS.getPermissionNamespace(), PermissionType.UPLOAD_DOCUMENTS.getPermissionTemplateName(), permissionDetails)) {

                     AttributeSet roleQuals = new AttributeSet();

                     roleQuals.put(referenceTypeKey, id);

                     return Boolean.valueOf(getPermissionService().isAuthorizedByTemplateName(user, PermissionType.UPLOAD_DOCUMENTS.getPermissionNamespace(), PermissionType.UPLOAD_DOCUMENTS.getPermissionTemplateName(), permissionDetails, roleQuals));

                 }

                 }

                 return Boolean.TRUE;

     }

         @Override

         public StatusInfo deleteRefDocRelation(String documentId) throws Exception {

                 return service.deleteRefDocRelation(documentId);

         }

         @Override

         public List<RefDocRelationInfo> getRefDocIdsForRef(String refObjectTypeKey, String refObjectId) throws Exception{

                 return service.getRefDocRelationsByRef(refObjectTypeKey, refObjectId);

         }

         @Override

         public StatusInfo deleteRefDocRelationAndOrphanedDoc(String docRelationId, String documentId) throws Exception {

                 //Delete the relation

                 service.deleteRefDocRelation(docRelationId);

                 //Also delete the document if there are no more relations to it

                 try{

                         List<RefDocRelationInfo> allRelations = service.getRefDocRelationsByDoc(documentId);

                         if(allRelations == null || allRelations.isEmpty()){

                                 service.deleteDocument(documentId);

                         }

                 }catch(DoesNotExistException e){

                         service.deleteDocument(documentId);

                 }

                 return new StatusInfo();

         }

 }