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.applib.services.userui;
  
  import jakarta.inject.Inject;
  import jakarta.inject.Named;
  
  import org.apache.causeway.applib.CausewayModuleApplib;
  import org.apache.causeway.applib.annotation.Action;
  import org.apache.causeway.applib.annotation.ActionLayout;
  import org.apache.causeway.applib.annotation.DomainService;
  import org.apache.causeway.applib.annotation.DomainServiceLayout;
  import org.apache.causeway.applib.annotation.MemberSupport;
  import org.apache.causeway.applib.annotation.PriorityPrecedence;
  import org.apache.causeway.applib.annotation.Publishing;
  import org.apache.causeway.applib.annotation.SemanticsOf;
  import org.apache.causeway.applib.services.user.UserMemento;
  import org.apache.causeway.applib.services.user.UserService;
  
  import lombok.RequiredArgsConstructor;
  
  /**
   * Menu to return a representation (a {@link UserMemento}) of the currently logged-in user.
   *
   * @since 2.0 {@index}
   */
  @DomainService
  @Named(UserMenu.LOGICAL_TYPE_NAME)
  @DomainServiceLayout(
          menuBar = DomainServiceLayout.MenuBar.TERTIARY
  )
  @jakarta.annotation.Priority(PriorityPrecedence.EARLY)
  @RequiredArgsConstructor(onConstructor_ = { @Inject })
  public class UserMenu {
  
      static final String LOGICAL_TYPE_NAME = CausewayModuleApplib.NAMESPACE + ".UserMenu";
  
      public static abstract class ActionDomainEvent<T> extends CausewayModuleApplib.ActionDomainEvent<T> {}
  
      final UserService userService;
  
      /**
       * @since 2.0 {@index}
       */
      @Action(
              commandPublishing = Publishing.DISABLED,
              domainEvent = me.ActionDomainEvent.class,
              executionPublishing = Publishing.DISABLED,
              semantics = SemanticsOf.SAFE
              )
      @ActionLayout(
              cssClassFa = "fa-user",
              describedAs = "Returns your user account details",
              sequence = "100"
          )
      public class me {
  
          public class ActionDomainEvent extends UserMenu.ActionDomainEvent<me> {}
  
          @MemberSupport public UserMemento act() { return userService.currentUser().orElse(null); }
          @MemberSupport public String disableAct() {
              return userService.currentUser().isPresent() ? null : "Current user not available";
          }
  
      }
  
  }
  