/*
    * Copyright 2021 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.server.command;
  
  import static java.util.Objects.requireNonNull;
  
  import java.util.List;
  
  import com.google.common.base.MoreObjects;
  import com.google.common.base.Objects;
  import com.google.common.collect.ImmutableList;
  
  import com.linecorp.centraldogma.common.Change;
  import com.linecorp.centraldogma.common.Revision;
  
  /**
   * Result of a {@link NormalizingPushCommand} commit.
   */
  public final class CommitResult {
  
      private final Revision revision;
      private final List<Change<?>> changes;
  
      /**
       * Returns a {@link CommitResult}.
       */
      public static CommitResult of(Revision revision, Iterable<Change<?>> changes) {
          return new CommitResult(revision, changes);
      }
  
      private CommitResult(Revision revision, Iterable<Change<?>> changes) {
          this.revision = requireNonNull(revision, "revision");
          this.changes = ImmutableList.copyOf(requireNonNull(changes, "changes"));
      }
  
      /**
       * Returns the {@link Revision}.
       */
      public Revision revision() {
          return revision;
      }
  
      /**
       * Returns the list of {@link Change}s.
       */
      public List<Change<?>> changes() {
          return changes;
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (!(o instanceof CommitResult)) {
              return false;
          }
          final CommitResult that = (CommitResult) o;
          return Objects.equal(revision, that.revision) &&
                 Objects.equal(changes, that.changes);
      }
  
      @Override
      public int hashCode() {
          return Objects.hashCode(revision, changes);
      }
  
      @Override
      public String toString() {
          return MoreObjects.toStringHelper(this)
                            .add("revision", revision)
                            .add("changes", changes)
                            .toString();
      }
  }