/*
    * Copyright (c) 2002-2025 Gargoyle Software Inc.
    *
    * 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
    * 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 org.htmlunit.javascript.host.dom;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.htmlunit.AlertHandler;
  import org.htmlunit.CollectingAlertHandler;
  import org.htmlunit.MockWebConnection;
  import org.htmlunit.SimpleWebTestCase;
  import org.htmlunit.WebClient;
  import org.htmlunit.html.DomNode;
  import org.htmlunit.html.HtmlInput;
  import org.htmlunit.html.HtmlPage;
  import org.htmlunit.html.impl.SimpleRange;
  import org.htmlunit.junit.BrowserRunner;
  import org.htmlunit.junit.annotation.Alerts;
  import org.htmlunit.junit.annotation.HtmlUnitNYI;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /**
   * Unit tests for {@link Selection}.
   *
   * @author Daniel Gredler
   * @author Marc Guillemot
   * @author Frank Danek
   * @author Ronald Brill
   */
  @RunWith(BrowserRunner.class)
  public class Selection2Test extends SimpleWebTestCase {
  
      /**
       * @throws Exception if an error occurs
       */
      @Test
      @Alerts({"", "cx"})
      public void stringValue() throws Exception {
          test("", "selection", "x");
      }
  
      /**
       * @throws Exception if an error occurs
       */
      @Test
      @Alerts({"null", "s1"})
      public void anchorNode() throws Exception {
          test("", "selection.anchorNode", "x ? x.parentNode.id : x");
      }
  
      /**
       * @throws Exception if an error occurs
       */
      @Test
      @Alerts({"0", "2"})
      public void anchorOffset() throws Exception {
          test("", "selection.anchorOffset", "x");
      }
  
      /**
       * @throws Exception if an error occurs
       */
      @Test
      @Alerts({"null", "s2"})
      public void focusNode() throws Exception {
          test("", "selection.focusNode", "x ? x.parentNode.id : x");
      }
  
      /**
       * @throws Exception if an error occurs
       */
      @Test
      @Alerts({"0", "1"})
      public void focusOffset() throws Exception {
          test("", "selection.focusOffset", "x");
      }
  
      /**
       * @throws Exception if an error occurs
       */
      @Test
      @Alerts({"true", "false"})
      public void isCollapsed() throws Exception {
          test("", "selection.isCollapsed", "x");
      }
  
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"0", "1"})
     public void rangeCount() throws Exception {
         test("", "selection.rangeCount", "x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"0", "1"})
     public void rangeCount2() throws Exception {
         test("try{selection.collapseToEnd()}catch(e){alert('exception')}", "selection.rangeCount", "x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"null", "null"})
     public void removeAllRanges_anchorNode() throws Exception {
         test("try{selection.removeAllRanges()}catch(e){alert('exception')}",
                 "selection.anchorNode", "x ? x.parentNode.id : x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"0", "0"})
     public void removeAllRanges_anchorOffset() throws Exception {
         test("try{selection.removeAllRanges()}catch(e){alert('exception')}",
                 "selection.anchorOffset", "x ? x.parentNode.id : x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"null", "null"})
     public void removeAllRanges_focusNode() throws Exception {
         test("try{selection.removeAllRanges()}catch(e){alert('exception')}",
                 "selection.focusNode", "x ? x.parentNode.id : x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"0", "0"})
     public void removeAllRanges_focusOffset() throws Exception {
         test("try{selection.removeAllRanges()}catch(e){alert('exception')}",
                 "selection.focusOffset", "x ? x.parentNode.id : x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"null", "s1"})
     public void collapse() throws Exception {
         test("try{selection.collapse(s1, 1)}catch(e){alert('exception')}",
                 "selection.focusNode", "x ? x.id : x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"null", "s2"})
     public void collapseToEnd() throws Exception {
         test("try{selection.collapseToEnd()}catch(e){alert('exception')}",
                 "selection.anchorNode", "x ? x.parentNode.id : x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"null", "s1"})
     public void collapseToStart() throws Exception {
         test("try{selection.collapseToStart()}catch(e){alert('exception')}",
                 "selection.focusNode", "x ? x.parentNode.id : x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts(DEFAULT = {"0", "1"},
             CHROME = {"0", "3"},
             EDGE = {"0", "3"})
     @HtmlUnitNYI(CHROME = {"0", "1"},
             EDGE = {"0", "1"})
     public void extend() throws Exception {
         test("try{selection.extend(s2, 1)}catch(e){alert('exception')}", "selection.focusOffset", "x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"0", "0"})
     public void selectAllChildren() throws Exception {
         test("try{selection.selectAllChildren(document.body)}catch(e){alert('exception')}",
                 "selection.anchorOffset", "x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"none", "cx"})
     public void getRangeAt() throws Exception {
         test("", "selection.rangeCount > 0 ? selection.getRangeAt(0) : 'none'", "x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"", "true"})
     public void getRangeAt_prototype() throws Exception {
         test("", "selection.rangeCount > 0 ? (selection.getRangeAt(0) instanceof Range) : ''", "x");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"None", "None"})
     public void empty() throws Exception {
         test("try{selection.empty()}catch(e){alert('exception')}", "selection.type", "x ? x : 'undefined'");
     }
 
     /**
      * @throws Exception if an error occurs
      */
     @Test
     @Alerts({"unsupported action", "unsupported action"})
     public void createRange() throws Exception {
         test("", "selection.createRange()", "x");
     }
 
     private void test(final String action, final String x, final String alert)
         throws Exception {
 
         final String html = DOCTYPE_HTML
             + "<html>\n"
             + "<body onload='test()'>\n"
             + "  <span id='s1'>abc</span><span id='s2'>xyz</span><span id='s3'>foo</span>\n"
             + "  <input type='button' id='b' onclick=\"" + action + ";test();\" value='click'></input>\n"
             + "<script>\n"
             + "  var selection = document.selection; // IE\n"
             + "  if(!selection) selection = window.getSelection(); // FF\n"
             + "  var s1 = document.getElementById('s1');\n"
             + "  var s2 = document.getElementById('s2');\n"
             + "  function test() {\n"
             + "    try {\n"
             + "      var x = " + x + ";\n"
             + "      alert(" + alert + ");\n"
             + "    } catch(e) {\n"
             + "      alert('unsupported action');\n"
             + "    }\n"
             + "  }\n"
             + "</script>\n"
             + "</body></html>";
 
         final WebClient client = getWebClient();
 
         final MockWebConnection conn = new MockWebConnection();
         conn.setDefaultResponse(html);
         client.setWebConnection(conn);
 
         final List<String> actual = new ArrayList<>();
         final AlertHandler alertHandler = new CollectingAlertHandler(actual);
         client.setAlertHandler(alertHandler);
 
         final HtmlPage page = client.getPage(URL_FIRST);
         final DomNode s1Text = page.getHtmlElementById("s1").getFirstChild();
         final DomNode s2Text = page.getHtmlElementById("s2").getFirstChild();
         final HtmlInput input = page.getHtmlElementById("b");
 
         final SimpleRange range = new SimpleRange();
         range.setStart(s1Text, 2);
         range.setEnd(s2Text, 1);
         page.setSelectionRange(range);
         input.click();
 
         assertEquals(getExpectedAlerts(), actual);
     }
 
 }