content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache 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.apache.org/licenses/LICENSE-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.apache.causeway.core.metamodel.postprocessors.allbutparam.authorization;
  
  import java.util.Optional;
  
  import org.apache.causeway.core.metamodel.consent.Consent.VetoReason;
  import org.apache.causeway.core.metamodel.facetapi.Facet;
  import org.apache.causeway.core.metamodel.facetapi.FacetAbstract;
  import org.apache.causeway.core.metamodel.facetapi.FacetHolder;
  import org.apache.causeway.core.metamodel.interactions.use.UsabilityContext;
  import org.apache.causeway.core.metamodel.interactions.vis.VisibilityContext;
  import org.apache.causeway.core.security.authorization.manager.AuthorizationManager;
  
  import lombok.extern.log4j.Log4j2;
  
  @Log4j2
  public abstract class AuthorizationFacetAbstract
  extends FacetAbstract
  implements AuthorizationFacet {
  
      private static final Class<? extends Facet> type() {
          return AuthorizationFacet.class;
      }
  
      private final AuthorizationManager authorizationManager;
  
      public AuthorizationFacetAbstract(
              final FacetHolder holder) {
          super(type(), holder);
          this.authorizationManager = getAuthorizationManager();
      }
  
      @Override
      public String hides(final VisibilityContext ic) {
  
          if(ic.head().owner().objSpec().isValue()) {
              return null; // never hide value-types
          }
  
          var hides = authorizationManager
                  .isVisible(
                          getInteractionService().currentInteractionContextElseFail(),
                          ic.identifier())
                  ? null
                  : "Not authorized to view";
  
          if(hides!=null && log.isDebugEnabled()) {
              log.debug("hides[{}] -> {}", ic.identifier(), hides);
          }
  
          return hides;
      }
  
      @Override
      public Optional<VetoReason> disables(final UsabilityContext ic) {
  
          if(ic.head().owner().objSpec().isValue()) {
              return Optional.empty(); // never disable value-types
          }
  
          var disables = authorizationManager
                  .isUsable(
                          getInteractionService().currentInteractionContextElseFail(),
                          ic.identifier())
                  ? null
                  : AuthorizationFacet.formatNotAuthorizedToEdit(ic.identifier(), getMetaModelContext());
  
          if(disables!=null && log.isDebugEnabled()) {
              log.debug("disables[{}] -> {}", ic.identifier(), disables);
          }
  
          return Optional.ofNullable(disables).map(VetoReason::unauthorized);
      }
  
  }
  