/**

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * Contributor(s):

 *

 * The Original Software is NetBeans. The Initial Developer of the Original

 * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

 * made subject to such option by the copyright holder.

 */

package org.netbeans.html.boot.fx;

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 Dbgr dbg;

    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() {

                dbg = new Dbgr(engine, 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() {

                        dbg.sendMessage(message);

                    }

                });

            }

        } catch (IOException ex) {

            LOG.log(Level.WARNING, null, ex);

        }

    }

}