/*
    * Copyright 2019 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.dccon.repository.ldap.transcoder;
  
  import java.time.OffsetDateTime;
  import java.time.ZonedDateTime;
  import java.util.Optional;
  import org.ldaptive.io.AbstractStringValueTranscoder;
  import org.ldaptive.io.GeneralizedTimeValueTranscoder;
  import org.springframework.util.StringUtils;
  
  /**
   * The generalized time value transcoder.
   *
   * @author Christian Bremer
   */
  public class GeneralizedTimeToOffsetDateTimeValueTranscoder
      extends AbstractStringValueTranscoder<OffsetDateTime> {
  
    private static final GeneralizedTimeValueTranscoder transcoder
        = new GeneralizedTimeValueTranscoder();
  
    @Override
    public OffsetDateTime decodeStringValue(String value) {
      return Optional.ofNullable(value)
          .filter(StringUtils::hasText)
          .map(transcoder::decodeStringValue)
          .map(ZonedDateTime::toOffsetDateTime)
          .orElse(null);
    }
  
    @Override
    public String encodeStringValue(OffsetDateTime value) {
      return Optional.ofNullable(value)
          .map(OffsetDateTime::toZonedDateTime)
          .map(transcoder::encodeStringValue)
          .orElse(null);
    }
  
    @Override
    public Class<OffsetDateTime> getType() {
      return OffsetDateTime.class;
    }
  }