/*
    * Copyright (c) 2022-2023. Roland T. Lichti, Kaiserpfalz EDV-Service.
    *
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    *
    * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  package de.kaiserpfalzedv.commons.jpa;
  
  import java.io.Serializable;
  import java.time.OffsetDateTime;
  import java.util.Objects;
  
  import org.hibernate.annotations.CreationTimestamp;
  import org.hibernate.annotations.UpdateTimestamp;
  
  import de.kaiserpfalzedv.commons.api.resources.HasId;
  import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  import jakarta.annotation.Nullable;
  import jakarta.persistence.Column;
  import jakarta.persistence.GeneratedValue;
  import jakarta.persistence.Id;
  import jakarta.persistence.MappedSuperclass;
  import jakarta.persistence.Version;
  import lombok.AllArgsConstructor;
  import lombok.Builder;
  import lombok.Getter;
  import lombok.NoArgsConstructor;
  import lombok.NonNull;
  import lombok.Setter;
  import lombok.ToString;
  import lombok.experimental.SuperBuilder;
  
  @SuppressFBWarnings(value = "CT_CONSTRUCTOR_THROW", justification = "lombok provided superbuilder constructor.")
  @MappedSuperclass
  @SuperBuilder(toBuilder = true)
  @AllArgsConstructor
  @NoArgsConstructor
  @Getter
  @Setter
  @ToString(callSuper = true)
  public abstract class AbstractJPAEntity<T extends Serializable> implements HasId<T>, Cloneable {
      @Id
      @GeneratedValue
      @Column(name = "ID", nullable = false, insertable = true, updatable = false, unique = true)
      protected T id;
  
      @NonNull
      @Version
      @Column(name = "VERSION", nullable = false, insertable = true, updatable = true)
      @Builder.Default
      protected Integer version = 0;
  
      @CreationTimestamp
      @Column(name = "CREATED", nullable = false, insertable = true, updatable = false)
      protected OffsetDateTime created;
  
      @UpdateTimestamp
      @Column(name = "MODIFIED", nullable = true, insertable = false, updatable = true)
      protected OffsetDateTime modified;
  
      @Column(name = "DELETED", nullable = true, insertable = false, updatable = true)
      @Nullable
      protected OffsetDateTime deleted;
  
  
      @SuppressWarnings({"unchecked","java:S2097"})
      @Override
      public boolean equals(final Object o) {
          if (this == o) return true;
          if (o == null) return false;
          if (!(AbstractJPAEntity.class.isAssignableFrom(o.getClass()))) return false;
  
          return this.id.equals(((HasId<T>)o).getId());
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(this.getId());
      }
  
      @Override
      @SuppressWarnings("java:S2975")
      protected AbstractJPAEntity<T> clone() throws CloneNotSupportedException {
          @SuppressWarnings("unchecked")
          final AbstractJPAEntity<T> result = (AbstractJPAEntity<T>) super.clone();
  
          result.id = this.id;
          result.version = this.version;
 
         if (this.created != null) {
             result.created = this.created;
         }
 
         if (this.modified != null) {
             result.modified = this.modified;
         }
 
         return result;
     }
 }