/*
    * 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.myfaces.tobago.internal.context;
  
  import org.apache.myfaces.tobago.internal.mock.faces.AbstractTobagoTestBase;
  import org.apache.myfaces.tobago.internal.webapp.XmlResponseWriter;
  import org.junit.Assert;
  import org.junit.Test;
  
  import javax.faces.context.FacesContext;
  import javax.swing.tree.DefaultMutableTreeNode;
  import javax.swing.tree.TreeNode;
  import java.io.IOException;
  import java.io.StringWriter;
  
  public class ResponseWriterDividerUnitTest extends AbstractTobagoTestBase {
  
    @Test
    public void test() throws IOException {
  
      StringWriter stringWriter = new StringWriter();
      getFacesContext().setResponseWriter(new XmlResponseWriter(stringWriter, "text/xml", "ISO-8859-1"));
  
      DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
      DefaultMutableTreeNode colors = new DefaultMutableTreeNode("Colors");
      DefaultMutableTreeNode numbers = new DefaultMutableTreeNode("Numbers");
      DefaultMutableTreeNode integers = new DefaultMutableTreeNode("Integers");
      DefaultMutableTreeNode doubles = new DefaultMutableTreeNode("Doubles");
      root.add(colors);
      root.add(numbers);
      numbers.add(integers);
      numbers.add(doubles);
      integers.add(new DefaultMutableTreeNode("1"));
      integers.add(new DefaultMutableTreeNode("2"));
      doubles.add(new DefaultMutableTreeNode("2.7182"));
      doubles.add(new DefaultMutableTreeNode("3.1415"));
  
      render(getFacesContext(), root);
  
      ResponseWriterDivider divider = ResponseWriterDivider.getInstance(getFacesContext(), "unit test");
      divider.writeOutAndCleanUp(getFacesContext());
  
      String expected 
          = "(Root)\n"
          + "Colors\n"
          + "Numbers\n"
          + "(/Root)\n"
          + "(Numbers)\n"
          + "Integers\n"
          + "Doubles\n"
          + "(/Numbers)\n"
          + "(Integers)\n"
          + "1\n"
          + "2\n"
          + "(/Integers)\n"
          + "(Doubles)\n"
          + "2.7182\n"
          + "3.1415\n"
          + "(/Doubles)\n";
      
      Assert.assertEquals(expected, stringWriter.toString());
    }
  
    private void render(FacesContext facesContext, DefaultMutableTreeNode node) throws IOException {
      ResponseWriterDivider divider = ResponseWriterDivider.getInstance(facesContext, "unit test");
  
      String label = (String) node.getUserObject();
  
      // label
      if (!node.isRoot()) {
        facesContext.getResponseWriter().write(label + "\n");
      }
  
      // tag
      if (node.getChildCount() > 0) {
        divider.activateBranch(facesContext);
        facesContext.getResponseWriter().write("(" + label + ")\n");
        for (int i = 0; i < node.getChildCount(); i++) {
          TreeNode sub = node.getChildAt(i);
          render(facesContext, (DefaultMutableTreeNode) sub);
        }
        facesContext.getResponseWriter().write("(/" + label + ")\n");
       divider.passivateBranch(facesContext);
     }
   }
 }