/*
    * Copyright 2017 LINE Corporation
    *
    * LINE Corporation 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:
    *
    *   https://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 com.linecorp.centraldogma.internal.thrift;
  
  import java.time.Instant;
  import java.util.Collections;
  
  import com.google.common.base.Converter;
  
  import com.linecorp.centraldogma.common.Markup;
  
  /**
   * Provides a function converting back and forth between {@link Commit} and
   * {@link com.linecorp.centraldogma.common.Commit}.
   */
  public final class CommitConverter extends Converter<com.linecorp.centraldogma.common.Commit, Commit> {
      public static final Converter<com.linecorp.centraldogma.common.Commit, Commit> TO_DATA =
              new CommitConverter();
  
      public static final Converter<Commit, com.linecorp.centraldogma.common.Commit> TO_MODEL =
              TO_DATA.reverse();
  
      private CommitConverter() {}
  
      @Override
      protected Commit doForward(com.linecorp.centraldogma.common.Commit commit) {
          final Comment comment = new Comment();
          comment.setContent(commit.detail());
          comment.setMarkup(MarkupConverter.TO_DATA.convert(commit.markup()));
          return new Commit(RevisionConverter.TO_DATA.convert(commit.revision()),
                            AuthorConverter.TO_DATA.convert(commit.author()),
                            commit.whenAsText(),
                            commit.summary(), comment, Collections.emptyList());
      }
  
      @Override
      protected com.linecorp.centraldogma.common.Commit doBackward(Commit commit) {
          final Markup markup = Markup.valueOf(commit.getDetail().getMarkup().name());
          return new com.linecorp.centraldogma.common.Commit(
                  RevisionConverter.TO_MODEL.convert(commit.getRevision()),
                  AuthorConverter.TO_MODEL.convert(commit.getAuthor()),
                  Instant.parse(commit.getTimestamp()).toEpochMilli(),
                  commit.getSummary(),
                  commit.getDetail().getContent(),
                  markup);
      }
  }