/*
    * Copyright (C) 2014 Atlassian
    *
    * 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 com.atlassian.jira.rest.client.api.domain;
  
  import com.google.common.base.Objects;
  import com.google.common.base.Optional;
  
  import javax.annotation.Nullable;
  
  /**
   * Represents operations header
   *
   * @since 2.0
   */
  public class OperationHeader implements Operation {
      @Nullable
      private final String id;
      private final String label;
      @Nullable
      private final String title;
      @Nullable
      private final String iconClass;
  
      public OperationHeader(@Nullable final String id, final String label, @Nullable final String title, @Nullable final String iconClass) {
          this.id = id;
          this.label = label;
          this.title = title;
          this.iconClass = iconClass;
      }
  
      @Nullable
      @Override
      public String getId() {
          return id;
      }
  
      @Override
      public <T> Optional<T> accept(final OperationVisitor<T> visitor) {
          return visitor.visit(this);
      }
  
      public String getLabel() {
          return label;
      }
  
      @Nullable
      public String getTitle() {
          return title;
      }
  
      @Nullable
      public String getIconClass() {
          return iconClass;
      }
  
      @Override
      public String toString() {
          return Objects.toStringHelper(this)
                  .add("id", id)
                  .add("label", label)
                  .add("title", title)
                  .add("iconClass", iconClass)
                  .toString();
      }
  
      @Override
      public boolean equals(Object o) {
          if (o instanceof OperationHeader) {
              OperationHeader that = (OperationHeader) o;
              return Objects.equal(id, that.id)
                      && Objects.equal(label, that.label)
                      && Objects.equal(title, that.title)
                      && Objects.equal(iconClass, that.iconClass);
          }
          return false;
      }
  
      @Override
      public int hashCode() {
          return Objects.hashCode(id, label, title, iconClass);
      }
  }