/*
    * 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.server.command;
  
  import static java.util.Objects.requireNonNull;
  
  import java.util.Objects;
  
  import javax.annotation.Nullable;
  
  import com.fasterxml.jackson.annotation.JsonProperty;
  import com.google.common.base.MoreObjects.ToStringHelper;
  
  import com.linecorp.centraldogma.common.Author;
  
  /**
   * A super class of the {@link Command}s which perform operations on a repository.
   *
   * @param <T> the result type of a {@link Command}
   */
  public abstract class RepositoryCommand<T> extends AbstractCommand<T> {
  
      private final String projectName;
      private final String repositoryName;
  
      RepositoryCommand(CommandType commandType, @Nullable Long timestamp, @Nullable Author author,
                        String projectName, String repositoryName) {
          super(commandType, timestamp, author);
          this.projectName = requireNonNull(projectName, "projectName");
          this.repositoryName = requireNonNull(repositoryName, "repositoryName");
      }
  
      /**
       * Returns the project name.
       */
      @JsonProperty
      public final String projectName() {
          return projectName;
      }
  
      /**
       * Returns the repository name.
       */
      @JsonProperty
      public final String repositoryName() {
          return repositoryName;
      }
  
      @Override
      public final String executionPath() {
          return String.format("/%s/%s", projectName, repositoryName);
      }
  
      @Override
      public boolean equals(Object obj) {
          if (this == obj) {
              return true;
          }
  
          if (!(obj instanceof RepositoryCommand)) {
              return false;
          }
  
          final RepositoryCommand<?> that = (RepositoryCommand<?>) obj;
          return super.equals(that) &&
                 projectName.equals(that.projectName) &&
                 repositoryName.equals(that.repositoryName);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(projectName, repositoryName) * 31 + super.hashCode();
      }
  
      @Override
      ToStringHelper toStringHelper() {
          return super.toStringHelper()
                      .add("projectName", projectName)
                      .add("repositoryName", repositoryName);
      }
  }