/*
    * 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.html;
  
  import static org.htmlunit.html.DomElement.ATTRIBUTE_NOT_DEFINED;
  
  import org.htmlunit.SgmlPage;
  import org.htmlunit.html.DomElement;
  import org.htmlunit.html.DomNode;
  import org.htmlunit.html.DomText;
  import org.htmlunit.html.HtmlForm;
  import org.htmlunit.html.HtmlOption;
  import org.htmlunit.html.HtmlOptionGroup;
  import org.htmlunit.html.HtmlSelect;
  import org.htmlunit.javascript.JavaScriptEngine;
  import org.htmlunit.javascript.configuration.JsxClass;
  import org.htmlunit.javascript.configuration.JsxConstructor;
  import org.htmlunit.javascript.configuration.JsxGetter;
  import org.htmlunit.javascript.configuration.JsxSetter;
  import org.xml.sax.helpers.AttributesImpl;
  
  /**
   * The JavaScript object for {@link HtmlOption}.
   *
   * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
   * @author David K. Taylor
   * @author Chris Erskine
   * @author Marc Guillemot
   * @author Ahmed Ashour
   * @author Ronald Brill
   * @author Frank Danek
   */
  @JsxClass(domClass = HtmlOption.class)
  public class HTMLOptionElement extends HTMLElement {
  
      /**
       * JavaScript constructor.
       * @param newText the text
       * @param newValue the value
       * @param defaultSelected Whether the option is initially selected
       * @param selected the current selection state of the option
       */
      @JsxConstructor
      public void jsConstructor(final Object newText, final String newValue,
              final boolean defaultSelected, final boolean selected) {
          final SgmlPage page = (SgmlPage) getWindow().getWebWindow().getEnclosedPage();
          AttributesImpl attributes = null;
          if (defaultSelected) {
              attributes = new AttributesImpl();
              attributes.addAttribute(null, "selected", "selected", null, "selected");
          }
  
          final HtmlOption htmlOption = (HtmlOption) page.getWebClient().getPageCreator().getHtmlParser()
                                                      .getFactory(HtmlOption.TAG_NAME)
                                                      .createElement(page, HtmlOption.TAG_NAME, attributes);
          htmlOption.setSelected(selected);
          setDomNode(htmlOption);
  
          if (!JavaScriptEngine.isUndefined(newText)) {
              final String newTextString = JavaScriptEngine.toString(newText);
              htmlOption.appendChild(new DomText(page, newTextString));
              htmlOption.setLabelAttribute(newTextString);
          }
          if (!"undefined".equals(newValue)) {
              htmlOption.setValueAttribute(newValue);
          }
      }
  
      /**
       * JavaScript constructor.
       * @param newText the text
       * @param newValue the value
       * @param defaultSelected Whether the option is initially selected
       * @param selected the current selection state of the option
       */
      public void jsConstructorOption(final Object newText, final String newValue,
              final boolean defaultSelected, final boolean selected) {
          jsConstructor(newText, newValue, defaultSelected, selected);
      }
  
      /**
       * Returns the value of the {@code value} property.
       * @return the value property
       */
      @JsxGetter
      @Override
      public String getValue() {
         String value = getDomNodeOrNull().getAttributeDirect(DomElement.VALUE_ATTRIBUTE);
         if (ATTRIBUTE_NOT_DEFINED == value) {
             value = ((HtmlOption) getDomNodeOrNull()).getText();
         }
         return value;
     }
 
     /**
      * Sets the value of the {@code value} property.
      * @param newValue the value property
      */
     @JsxSetter
     public void setValue(final String newValue) {
         final DomNode dom = getDomNodeOrNull();
         if (dom instanceof HtmlOption) {
             ((HtmlOption) dom).setValueAttribute(newValue);
         }
     }
 
     /**
      * Returns the value of the {@code text} property.
      * @return the text property
      */
     @JsxGetter
     public String getText() {
         final DomNode dom = getDomNodeOrNull();
         if (dom instanceof HtmlOption) {
             return ((HtmlOption) dom).getText();
         }
         return null;
     }
 
     /**
      * Sets the value of the {@code text} property.
      * @param newText the text property
      */
     @JsxSetter
     public void setText(final String newText) {
         final DomNode dom = getDomNodeOrNull();
         if (dom instanceof HtmlOption) {
             ((HtmlOption) dom).setText(newText);
 
             if (!hasAttribute("label")) {
                 setLabel(newText);
             }
         }
     }
 
     /**
      * Returns the value of the {@code selected} property.
      * @return the text property
      */
     @JsxGetter
     public boolean isSelected() {
         final DomNode dom = getDomNodeOrNull();
         if (dom instanceof HtmlOption) {
             return ((HtmlOption) dom).isSelected();
         }
         return false;
     }
 
     /**
      * Sets the value of the {@code selected} property.
      * @param selected the new selected property
      */
     @JsxSetter
     public void setSelected(final boolean selected) {
         final HtmlOption optionNode = (HtmlOption) getDomNodeOrNull();
         final HtmlSelect enclosingSelect = optionNode.getEnclosingSelect();
 
         if (!selected && optionNode.isSelected()
                 && enclosingSelect != null
                 && enclosingSelect.getSize() <= 1
                 && !enclosingSelect.isMultipleSelectEnabled()) {
             enclosingSelect.getOption(0).setSelectedFromJavaScript(true);
             return;
         }
 
         optionNode.setSelectedFromJavaScript(selected);
     }
 
     /**
      * Returns the value of the {@code defaultSelected} property.
      * @return the text property
      */
     @JsxGetter
     public boolean isDefaultSelected() {
         final DomNode dom = getDomNodeOrNull();
         if (dom instanceof HtmlOption) {
             return ((HtmlOption) dom).isDefaultSelected();
         }
         return false;
     }
 
     /**
      * Returns the value of the {@code label} property.
      * @return the label property
      */
     @JsxGetter
     public String getLabel() {
         final DomNode domNode = getDomNodeOrNull();
         if (domNode instanceof HtmlOption) {
             return ((HtmlOption) domNode).getLabelAttribute();
         }
         return ((HtmlOptionGroup) domNode).getLabelAttribute();
     }
 
     /**
      * Sets the value of the {@code label} property.
      * @param label the new label property
      */
     @JsxSetter
     public void setLabel(final String label) {
         final DomNode domNode = getDomNodeOrNull();
         if (domNode instanceof HtmlOption) {
             ((HtmlOption) domNode).setLabelAttribute(label);
         }
         else {
             ((HtmlOptionGroup) domNode).setLabelAttribute(label);
         }
     }
 
     /**
      * {@inheritDoc} Overridden to modify browser configurations.
      */
     @Override
     @JsxGetter
     public boolean isDisabled() {
         return super.isDisabled();
     }
 
     /**
      * {@inheritDoc} Overridden to modify browser configurations.
      */
     @Override
     @JsxSetter
     public void setDisabled(final boolean disabled) {
         super.setDisabled(disabled);
     }
 
     /**
      * Returns the {@code index} property.
      * @return the {@code index} property
      */
     @JsxGetter
     public int getIndex() {
         final HtmlOption optionNode = (HtmlOption) getDomNodeOrNull();
         if (optionNode != null) {
             final HtmlSelect enclosingSelect = optionNode.getEnclosingSelect();
             if (enclosingSelect != null) {
                 return enclosingSelect.indexOf(optionNode);
             }
         }
         return 0;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void setAttribute(final String name, final String value) {
         super.setAttribute(name, value);
         if ("selected".equals(name)) {
             setSelected(true);
         }
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void removeAttribute(final String name) {
         super.removeAttribute(name);
         if ("selected".equals(name)) {
             setSelected(false);
         }
     }
 
     /**
      * Returns the value of the JavaScript {@code form} attribute.
      *
      * @return the value of the JavaScript {@code form} attribute
      */
     @JsxGetter
     @Override
     public HTMLFormElement getForm() {
         final HtmlForm form = getDomNodeOrDie().getEnclosingForm();
         if (form == null) {
             return null;
         }
         return (HTMLFormElement) getScriptableFor(form);
     }
 }