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.viewer.restfulobjects.test.domain.dom;
  
  import java.util.ArrayList;
  import java.util.Comparator;
  import java.util.List;
  import java.util.Set;
  import java.util.TreeSet;
  import java.util.stream.Collectors;
  
  import jakarta.inject.Inject;
  import jakarta.persistence.Entity;
  import jakarta.persistence.GeneratedValue;
  import jakarta.persistence.Id;
  import jakarta.persistence.JoinColumn;
  import jakarta.persistence.OneToMany;
  import jakarta.persistence.OneToOne;
  import jakarta.persistence.Table;
  import jakarta.persistence.Transient;
  
  import org.apache.causeway.applib.annotation.Action;
  import org.apache.causeway.applib.annotation.ActionLayout;
  import org.apache.causeway.applib.annotation.Bounding;
  import org.apache.causeway.applib.annotation.Collection;
  import org.apache.causeway.applib.annotation.DomainObject;
  import org.apache.causeway.applib.annotation.DomainObjectLayout;
  import org.apache.causeway.applib.annotation.Editing;
  import org.apache.causeway.applib.annotation.Nature;
  import org.apache.causeway.applib.annotation.Property;
  import org.apache.causeway.applib.annotation.SemanticsOf;
  import org.apache.causeway.applib.annotation.Value;
  
  import lombok.AllArgsConstructor;
  import lombok.Data;
  import lombok.Getter;
  import lombok.NoArgsConstructor;
  import lombok.RequiredArgsConstructor;
  import lombok.Setter;
  
  @Entity
  @Table(
          schema = "public",
          name = "Department"
  )
  @jakarta.inject.Named("university.dept.Department")
  @NoArgsConstructor
  @DomainObject(nature = Nature.ENTITY, bounding = Bounding.BOUNDED)
  @DomainObjectLayout(describedAs = "University department specializing in a field of study")
  public class Department implements Comparable<Department> {
  
      @Value
      @Data @NoArgsConstructor @AllArgsConstructor
      public static class SecondaryKey {
          String name;
      }
  
      public Department(final String name, final DeptHead deptHead) {
          this.name = name;
          this.deptHead = deptHead;
      }
  
      @Id
      @GeneratedValue
      private Long id;
  
      @Getter @Setter
      private String name;
      @Action(semantics = SemanticsOf.IDEMPOTENT)
      public class changeName {
  
          public Department act(final String newName){
              setName(newName);
              return Department.this;
          }
  
          public String default0Act(){
              return getName();
          }
  
          public String validate0Act(final String name) {
              if (name.contains("!")) {
                  return "Name cannot contain '!' character";
              }
              return null;
          }
      }
  
      @Getter @Setter
      @Property(editing = Editing.ENABLED) // yes, I know: this duplicates the functionality of changeDeptHead action
      @OneToOne(optional = true)
      @JoinColumn(name = "deptHead_id")
      private DeptHead deptHead;
  
      // overriding the default via @DomainObject to filter out the current dept head.
      public List<DeptHead> autoCompleteDeptHead(final String search) {
          return deptHeadRepository.findByNameContaining(search)
                  .stream()
                  .filter(x -> x != getDeptHead())
                  .collect(Collectors.toList());
      }
  
      @Action(semantics = SemanticsOf.IDEMPOTENT)
      @ActionLayout(associateWith = "deptHead")
      public class changeDeptHead {
          public Department act(final DeptHead newDeptHead) {
              setDeptHead(newDeptHead);
              return Department.this;
          }
          public DeptHead default0Act() {
              return getDeptHead();
          }
          public String validate0Act(final DeptHead newDeptHead) {
              if (newDeptHead == getDeptHead()) {
                  return "Same as current";
              }
              return null;
          }
      }
  
      @OneToMany(mappedBy = "department")
      private Set<StaffMember> staffMembers = new TreeSet<>();
  
      // because the ordering seems not to be deterministic?
      @Collection
      public List<StaffMember> getStaffMembers() {
          return staffMembers.stream().sorted().collect(Collectors.toList());
      }
  
      @Action(semantics = SemanticsOf.IDEMPOTENT)
      @ActionLayout(associateWith = "staffMembers")
      public class addStaffMember {
  
          public Department act(final StaffMember staffMember) {
              var department = Department.this;
  
              department.staffMembers.add(staffMember);
              staffMember.setDepartment(department);
              return department;
          }
      }
  
      @Action(semantics = SemanticsOf.IDEMPOTENT)
      @ActionLayout(associateWith = "staffMembers")
      public class addStaffMembers {
  
          public Department act(final List<StaffMember> staffMembers) {
              var department = Department.this;
  
              staffMembers.forEach(sm -> sm.setDepartment(department));
              department.staffMembers.addAll(staffMembers);
  
              return department;
          }
          public List<StaffMember> choices0Act() {
              var choices = new ArrayList<>(staffMemberRepository.findAll());
              choices.removeAll(getStaffMembers());
              return choices;
          }
  
          @Inject
          StaffMemberRepository staffMemberRepository;
      }
  
      @Action(semantics = SemanticsOf.IDEMPOTENT)
      @ActionLayout(associateWith = "staffMembers")
      @RequiredArgsConstructor
      public class removeStaffMember {
  
          public Department act(final StaffMember staffMember) {
              var department = Department.this;
  
              department.getStaffMembers().add(staffMember);
              staffMember.setDepartment(department);
              return department;
          }
          public List<StaffMember> choices0Act() {
              var department = Department.this;
              return department.getStaffMembers()
                          .stream()
                          .sorted(Comparator.comparing(StaffMember::getName))
                          .collect(Collectors.toList());
          }
      }
  
      @Override
      public int compareTo(final Department o) {
          return Comparator.comparing(Department::getName).compare(this, o);
      }
  
      @Inject @Transient private DeptHeadRepository deptHeadRepository;
  
  }
  