/*
    * Copyright 2024 the original author or authors.
    *
    * Licensed 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.bremersee.ldaptive.serializable;
  
  import static java.util.Objects.nonNull;
  
  import com.fasterxml.jackson.annotation.JsonCreator;
  import com.fasterxml.jackson.annotation.JsonProperty;
  import java.io.Serial;
  import java.io.Serializable;
  import java.util.Collection;
  import java.util.List;
  import java.util.Objects;
  import java.util.Optional;
  import java.util.stream.Stream;
  import lombok.EqualsAndHashCode;
  import lombok.Getter;
  import lombok.ToString;
  import org.ldaptive.LdapEntry;
  
  /**
   * The serializable ldap entry.
   *
   * @author Christian Bremer
   */
  @Getter
  @ToString
  @EqualsAndHashCode
  public class SerLdapEntry implements Serializable {
  
    @Serial
    private static final long serialVersionUID = 1L;
  
    /**
     * The distinguished name.
     */
    @JsonProperty(value = "dn")
    private final String dn;
  
    /**
     * The attributes.
     */
    @JsonProperty(value = "attributes")
    private final Collection<SerLdapAttr> attributes;
  
    /**
     * Instantiates a new serializable ldap entry.
     *
     * @param ldapEntry the ldap entry
     */
    public SerLdapEntry(LdapEntry ldapEntry) {
      this.dn = Optional.ofNullable(ldapEntry)
          .map(LdapEntry::getDn)
          .orElse(null);
      this.attributes = Stream.ofNullable(ldapEntry)
          .map(LdapEntry::getAttributes)
          .flatMap(Collection::stream)
          .filter(Objects::nonNull)
          .map(SerLdapAttr::new)
          .toList();
    }
  
    /**
     * Instantiates a new Ser ldap entry.
     *
     * @param dn the dn
     * @param attributes the attributes
     */
    @JsonCreator
    public SerLdapEntry(
        @JsonProperty(value = "dn") String dn,
        @JsonProperty(value = "attributes") List<SerLdapAttr> attributes) {
      this.dn = dn;
      this.attributes = attributes;
    }
  
    /**
     * To ldap entry.
     *
     * @return the ldap entry
     */
    public LdapEntry toLdapEntry() {
      LdapEntry ldapEntry = new LdapEntry();
      if (nonNull(dn)) {
        ldapEntry.setDn(dn);
     }
     if (nonNull(attributes) && !attributes.isEmpty()) {
       ldapEntry.addAttributes(attributes
           .stream()
           .map(SerLdapAttr::toLdapAttribute)
           .toList());
     }
     return ldapEntry;
   }
 
   /**
    * Find attribute.
    *
    * @param attributeName the attribute name
    * @return the optional attribute
    */
   public Optional<SerLdapAttr> findAttribute(String attributeName) {
     return Optional.ofNullable(attributeName)
         .flatMap(name -> Stream.ofNullable(attributes)
             .flatMap(Collection::stream)
             .filter(Objects::nonNull)
             .filter(attr -> name.equalsIgnoreCase(attr.getAttributeName()))
             .findFirst());
   }
 
 }