content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF 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
   *
   *        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.apache.causeway.viewer.restfulobjects.applib;
  
  import jakarta.ws.rs.core.MediaType;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.node.JsonNodeFactory;
  import com.fasterxml.jackson.databind.node.ObjectNode;
  
  /**
   * @since 1.x {@index}
   */
  public final class LinkRepresentation extends JsonRepresentation {
  
      public LinkRepresentation() {
          this(new ObjectNode(JsonNodeFactory.instance));
          withMethod(RestfulHttpMethod.GET);
      }
  
      public LinkRepresentation(final JsonNode jsonNode) {
          super(jsonNode);
      }
  
      public String getRel() {
          return asObjectNode().path("rel").textValue();
      }
  
      public LinkRepresentation withRel(final String rel) {
          asObjectNode().put("rel", rel);
          return this;
      }
  
      public LinkRepresentation withRel(Rel rel) {
          return withRel(rel.getName());
      }
  
      public String getHref() {
          return asObjectNode().path("href").textValue();
      }
  
      public LinkRepresentation withHref(final String href) {
          asObjectNode().put("href", href);
          return this;
      }
  
      public JsonRepresentation getValue() {
          return getRepresentation("value");
      }
  
      public String getTitle() {
          return getString("title");
      }
  
      public LinkRepresentation withTitle(final String title) {
          asObjectNode().put("title", title);
          return this;
      }
  
      public RestfulHttpMethod getHttpMethod() {
          final String methodStr = asObjectNode().path("method").textValue();
          return RestfulHttpMethod.valueOf(methodStr);
      }
  
      public MediaType getType() {
          final String typeStr = asObjectNode().path("type").textValue();
          if (typeStr == null) {
              return MediaType.APPLICATION_JSON_TYPE;
          }
          return MediaType.valueOf(typeStr);
      }
  
      public LinkRepresentation withMethod(final RestfulHttpMethod httpMethod) {
          asObjectNode().put("method", httpMethod.name());
          return this;
      }
  
      /**
       * Returns the &quot;arguments&quot; json-property of the link (a map).
       *
       * <p>
       * If there is no &quot;arguments&quot; node, then as a convenience will
       * return an empty map.
       */
      public JsonRepresentation getArguments() {
          final JsonNode arguments = asObjectNode().get("arguments");
          if (arguments == null || arguments.isNull()) {
              return JsonRepresentation.newMap();
          }
          return new JsonRepresentation(arguments);
      }
  
      @Override
      public int hashCode() {
          final int prime = 31;
          int result = 1;
          result = prime * result + ((getHref() == null) ? 0 : getHref().hashCode());
          result = prime * result + ((getHttpMethod() == null) ? 0 : getHttpMethod().hashCode());
          return result;
      }
  
      @Override
      public boolean equals(final Object obj) {
          if (this == obj) {
              return true;
          }
          if (obj == null) {
              return false;
          }
          if (getClass() != obj.getClass()) {
              return false;
          }
          final LinkRepresentation other = (LinkRepresentation) obj;
          if (getHref() == null) {
              if (other.getHref() != null) {
                  return false;
              }
          } else if (!getHref().equals(other.getHref())) {
              return false;
          }
          if (getHttpMethod() != other.getHttpMethod()) {
              return false;
          }
          return true;
      }
  
      @Override
      public String toString() {
          return "Link [rel=" + getRel() + ", href=" + getHref() + ", method=" + getHttpMethod() + ", type=" + getType() + "]";
      }
  
  }
  