/**

  * Back 2 Browser Bytecode Translator

  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, version 2 of the License.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. Look for COPYING file in the top folder.

  * If not, see http://opensource.org/licenses/GPL-2.0.

  */

 package org.apidesign.bck2brwsr.launcher.fximpl;

 import com.sun.javafx.scene.web.Debugger;

 import java.io.IOException;

 import java.io.ObjectInputStream;

 import java.io.ObjectOutputStream;

 import java.net.InetAddress;

 import java.net.Socket;

 import java.nio.charset.StandardCharsets;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 import javafx.application.Platform;

 import javafx.scene.web.WebEngine;

 import javafx.util.Callback;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 final class FXInspect implements Runnable {

     private static final Logger LOG = Logger.getLogger(FXInspect.class.getName());

     private final WebEngine engine;

     private final ObjectInputStream input;

     private FXInspect(WebEngine engine, int port) throws IOException {

         this.engine = engine;

         Socket socket = new Socket(InetAddress.getByName(null), port);

         ObjectOutputStream output = new ObjectOutputStream(socket.getOutputStream());

         this.input = new ObjectInputStream(socket.getInputStream());

         initializeDebugger(output);

     }

     static boolean initialize(WebEngine engine) {

         final int inspectPort = Integer.getInteger("netbeans.inspect.port", -1); // NOI18N

         if (inspectPort != -1) {

             try {

                 FXInspect inspector = new FXInspect(engine, inspectPort);

                 Thread t = new Thread(inspector, "FX<->NetBeans Inspector");

                 t.start();

                 return true;

             } catch (IOException ex) {

                 LOG.log(Level.INFO, "Cannot connect to NetBeans IDE to port " + inspectPort, ex); // NOI18N

             }

         }

         return false;

     }

     private void initializeDebugger(final ObjectOutputStream output) {

         Platform.runLater(new Runnable() {

             @Override

             public void run() {

                 Debugger debugger = engine.impl_getDebugger();

                 debugger.setEnabled(true);

                 debugger.setMessageCallback(new Callback<String,Void>() {

                     @Override

                     public Void call(String message) {

                         try {

                             byte[] bytes = message.getBytes(StandardCharsets.UTF_8);

                             output.writeInt(bytes.length);

                             output.write(bytes);

                             output.flush();

                         } catch (IOException ioex) {

                             ioex.printStackTrace();

                         }

                         return null;

                     }

                 });

             }

         });

     }

     @Override

     public void run() {

         try {

             while (true) {

                 int length = input.readInt();

                 byte[] bytes = new byte[length];

                 input.readFully(bytes);

                 final String message = new String(bytes, StandardCharsets.UTF_8);

                 Platform.runLater(new Runnable() {

                     @Override

                     public void run() {

                         engine.impl_getDebugger().sendMessage(message);

                     }

                 });

             }

         } catch (IOException ioex) {

             ioex.printStackTrace();

         }

     }

 }