/*
    * Copyright (c) 2002-2026 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.event;
  
  import org.htmlunit.HttpHeader;
  import org.htmlunit.corejs.javascript.NativeArray;
  import org.htmlunit.corejs.javascript.Scriptable;
  import org.htmlunit.corejs.javascript.ScriptableObject;
  import org.htmlunit.javascript.JavaScriptEngine;
  import org.htmlunit.javascript.configuration.JsxClass;
  import org.htmlunit.javascript.configuration.JsxConstructor;
  import org.htmlunit.javascript.configuration.JsxFunction;
  import org.htmlunit.javascript.configuration.JsxGetter;
  import org.htmlunit.javascript.host.Window;
  import org.htmlunit.javascript.host.WindowProxy;
  
  /**
   * A JavaScript object for {@code MessageEvent}.
   * <p>
   * For general information on which properties and functions should be supported, see
   * <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#messageevent">
   * Event definitions</a>.
   * </p>
   *
   * @see <a href="https://developer.mozilla.org/en/WebSockets/WebSockets_reference/MessageEvent">
   *          Mozilla documentation</a>
   * @author Ahmed Ashour
   * @author Frank Danek
   * @author Ronald Brill
   */
  @JsxClass
  public class MessageEvent extends Event {
  
      private Object data_;
      private String origin_;
      private String lastEventId_;
      private Window source_;
      private Object ports_;
  
      /**
       * Default constructor used to build the prototype.
       */
      public MessageEvent() {
          super();
          setType(TYPE_MESSAGE);
          origin_ = "";
          lastEventId_ = "";
          data_ = JavaScriptEngine.UNDEFINED;
      }
  
      /**
       * Constructs a Message Event with the provided data.
       * @param data the data
       */
      public MessageEvent(final Object data) {
          this();
          data_ = data;
      }
  
      /**
       * JavaScript constructor.
       *
       * @param type the event type
       * @param details the event details (optional)
       */
      @Override
      @JsxConstructor
      public void jsConstructor(final String type, final ScriptableObject details) {
          super.jsConstructor(type, details);
  
          data_ = null;
  
          String origin = "";
          String lastEventId = "";
          if (details != null && !JavaScriptEngine.isUndefined(details)) {
              data_ = details.get("data");
  
              final String detailOrigin = (String) details.get(HttpHeader.ORIGIN_LC);
              if (detailOrigin != null) {
                  origin = detailOrigin;
              }
  
              final Object detailLastEventId = details.get("lastEventId");
              if (detailLastEventId != null) {
                  lastEventId = JavaScriptEngine.toString(detailLastEventId);
              }
  
             source_ = null;
             final Object detailSource = details.get("source");
             if (detailSource instanceof Window window) {
                 source_ = window;
             }
             else if (detailSource instanceof WindowProxy proxy) {
                 source_ = proxy.getDelegee();
             }
             ports_ = details.get("ports");
         }
         origin_ = origin;
         lastEventId_ = lastEventId;
     }
 
     /**
      * Initializes an event object.
      * @param type the event type
      * @param canBubble can the event bubble
      * @param cancelable can the event be canceled
      * @param data the message
      * @param origin the scheme, hostname and port of the document that caused the event
      * @param lastEventId the identifier of the last event
      * @param source the window object that contains the document that caused the event
      * @param ports the message ports
      */
     @JsxFunction
     public void initMessageEvent(
             final String type,
             final boolean canBubble,
             final boolean cancelable,
             final Object data,
             final String origin,
             final String lastEventId,
             final Window source,
             final Object ports) {
         initEvent(type, canBubble, cancelable);
         data_ = data;
         origin_ = origin;
         lastEventId_ = lastEventId;
         source_ = source;
 
         if (JavaScriptEngine.isUndefined(ports)
             || ports instanceof NativeArray
             || (ports instanceof Scriptable scriptable && ScriptableObject.hasProperty(scriptable, "length"))) {
             ports_ = ports;
         }
         else {
             throw JavaScriptEngine.typeError(
                     "Argument 8 of MessageEvent.initMessageEvent can't be converted to a sequence.");
         }
     }
 
     /**
      * Retrieves the data contained.
      * @return the data contained
      */
     @JsxGetter
     public Object getData() {
         return data_;
     }
 
     /**
      * Gets the URI of the document of origin.
      * @return the origin
      */
     @JsxGetter
     public String getOrigin() {
         return origin_;
     }
 
     /**
      * Sets the URI of the document of origin.
      * @param origin the origin
      */
     public void setOrigin(final String origin) {
         origin_ = origin;
     }
 
     /**
      * Retrieves the identifier of the last event.
      * @return the identified of the last event
      */
     @JsxGetter
     public String getLastEventId() {
         return lastEventId_;
     }
 
     /**
      * Retrieves the data contained.
      * @return the data contained
      */
     @JsxGetter
     public Window getSource() {
         return source_;
     }
 
     /**
      * Returns the {@code ports} property.
      * @return the {@code ports} property
      */
     @JsxGetter
     public Object getPorts() {
         return ports_;
     }
 }