/*
    * 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.commons.jxpath.ri.model.dom;
  
  import static org.junit.jupiter.api.Assertions.assertInstanceOf;
  
  import org.apache.commons.jxpath.AbstractFactory;
  import org.apache.commons.jxpath.JXPathContext;
  import org.apache.commons.jxpath.ri.model.AbstractXMLModelTest;
  import org.apache.commons.jxpath.xml.DocumentContainer;
  import org.junit.jupiter.api.Test;
  import org.w3c.dom.Attr;
  import org.w3c.dom.Document;
  import org.w3c.dom.Element;
  import org.w3c.dom.Node;
  import org.w3c.dom.NodeList;
  
  /**
   * Tests JXPath with DOM
   */
  public class DOMModelTest extends AbstractXMLModelTest {
  
      private void appendXMLSignature(final StringBuilder buffer, final NodeList children, final boolean elements, final boolean attributes, final boolean text,
              final boolean pi) {
          for (int i = 0; i < children.getLength(); i++) {
              appendXMLSignature(buffer, children.item(i), elements, attributes, text, pi);
          }
      }
  
      private void appendXMLSignature(final StringBuilder buffer, final Object object, final boolean elements, final boolean attributes, final boolean text,
              final boolean pi) {
          final Node node = (Node) object;
          final int type = node.getNodeType();
          switch (type) {
          case Node.DOCUMENT_NODE:
              buffer.append("<D>");
              appendXMLSignature(buffer, node.getChildNodes(), elements, attributes, text, pi);
              buffer.append("</D");
              break;
          case Node.ELEMENT_NODE:
              final String tag = elements ? ((Element) node).getTagName() : "E";
              buffer.append("<");
              buffer.append(tag);
              buffer.append(">");
              appendXMLSignature(buffer, node.getChildNodes(), elements, attributes, text, pi);
              buffer.append("</");
              buffer.append(tag);
              buffer.append(">");
              break;
          case Node.TEXT_NODE:
          case Node.CDATA_SECTION_NODE:
              if (text) {
                  String string = node.getNodeValue();
                  string = string.replace('\n', '=');
                  buffer.append(string);
              }
              break;
          }
      }
  
      @Override
      protected AbstractFactory getAbstractFactory() {
          return new TestDOMFactory();
      }
  
      @Override
      protected String getModel() {
          return DocumentContainer.MODEL_DOM;
      }
  
      @Override
      protected String getXMLSignature(final Object node, final boolean elements, final boolean attributes, final boolean text, final boolean pi) {
          final StringBuilder buffer = new StringBuilder();
          appendXMLSignature(buffer, node, elements, attributes, text, pi);
          return buffer.toString();
      }
  
      @Test
      public void testGetElementDescendantOrSelf() {
          final JXPathContext childContext = context.getRelativeContext(context.getPointer("/vendor"));
          assertInstanceOf(Element.class, childContext.getContextBean());
          assertXPathNodeType(childContext, "//vendor", Element.class);
      }
  
     @Test
     public void testGetNode() {
         assertXPathNodeType(context, "/", Document.class);
         assertXPathNodeType(context, "/vendor/location", Element.class);
         assertXPathNodeType(context, "//location/@name", Attr.class);
         assertXPathNodeType(context, "//vendor", Element.class);
     }
 }