/**

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

 *

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

 *

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 * Other names may be trademarks of their respective owners.

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 * 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

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

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

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

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 *

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

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

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

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

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

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package org.netbeans.html.ko.osgi.test;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.lang.reflect.Constructor;

import java.lang.reflect.Method;

import java.net.URI;

import java.net.URISyntaxException;

import java.net.URL;

import java.net.URLConnection;

import java.util.Map;

import java.util.concurrent.Callable;

import java.util.concurrent.Executors;

import net.java.html.BrwsrCtx;

import net.java.html.boot.BrowserBuilder;

import net.java.html.js.JavaScriptBody;

import org.apidesign.html.boot.spi.Fn;

import org.apidesign.html.context.spi.Contexts;

import org.apidesign.html.json.spi.Technology;

import org.apidesign.html.json.spi.Transfer;

import org.apidesign.html.json.tck.KnockoutTCK;

import org.json.JSONException;

import org.json.JSONObject;

import org.openide.util.lookup.ServiceProvider;

import org.osgi.framework.Bundle;

import org.osgi.framework.BundleContext;

import org.osgi.framework.FrameworkUtil;

/**

 *

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

 */

@ServiceProvider(service = KnockoutTCK.class)

public class KnockoutEquinoxTCKImpl extends KnockoutTCK implements Callable<Class[]> {

    private static Fn.Presenter browserContext;

    public static Class loadOSGiClass(String name, BundleContext ctx) throws Exception {

        for (Bundle b : ctx.getBundles()) {

            try {

                Class<?> osgiClass = b.loadClass(name);

                if (osgiClass != null && osgiClass.getClassLoader() != ClassLoader.getSystemClassLoader()) {

                    return osgiClass;

                }

            } catch (ClassNotFoundException cnfe) {

                // go on

            }

        }

        throw new IllegalStateException("Cannot load " + name + " from the OSGi container!");

    }

    @Override

    public Class[] call() throws Exception {

        return testClasses();

    }

    public static void start(URI server) throws Exception {

        final BrowserBuilder bb = BrowserBuilder.newBrowser().loadClass(KnockoutEquinoxTCKImpl.class).

            loadPage(server.toString()).

            invoke("initialized");

        Executors.newSingleThreadExecutor().submit(new Runnable() {

            @Override

            public void run() {

                try {

                    final ClassLoader osgiClassLoader = BrowserBuilder.class.getClassLoader();

                    Thread.currentThread().setContextClassLoader(osgiClassLoader);

                    bb.showAndWait();

                } catch (Throwable t) {

                    t.printStackTrace();

                }

            }

        });

    }

    public static void initialized() throws Exception {

        Bundle bundle = FrameworkUtil.getBundle(KnockoutEquinoxTCKImpl.class);

        if (bundle == null) {

            throw new IllegalStateException(

                "Should be loaded from a bundle. But was: " + KnockoutEquinoxTCKImpl.class.getClassLoader()

            );

        }

        Class<?> classpathClass = ClassLoader.getSystemClassLoader().loadClass(

            "org.netbeans.html.ko.osgi.test.KnockoutEquinoxIT"

        );

        Method m = classpathClass.getMethod("initialized", Class.class, Object.class);

        browserContext = Fn.activePresenter();

        m.invoke(null, KnockoutEquinoxTCKImpl.class, browserContext);

    }

    @Override

    public BrwsrCtx createContext() {

        try {

            Class<?> fxCls = loadOSGiClass(

                "org.netbeans.html.ko4j.FXContext",

                FrameworkUtil.getBundle(KnockoutEquinoxTCKImpl.class).getBundleContext()

            );

            final Constructor<?> cnstr = fxCls.getConstructor(Fn.Presenter.class);

            cnstr.setAccessible(true);

            Object fx = cnstr.newInstance(browserContext);

            Contexts.Builder cb = Contexts.newBuilder().

                register(Technology.class, (Technology)fx, 10).

                register(Transfer.class, (Transfer)fx, 10);

//        if (fx.areWebSocketsSupported()) {

//            cb.register(WSTransfer.class, fx, 10);

//        }

            return cb.build();

        } catch (Exception ex) {

            throw new IllegalStateException(ex);

        }

    }

    @Override

    public Object createJSON(Map<String, Object> values) {

        JSONObject json = new JSONObject();

        for (Map.Entry<String, Object> entry : values.entrySet()) {

            try {

                json.put(entry.getKey(), entry.getValue());

            } catch (JSONException ex) {

                throw new IllegalStateException(ex);

            }

        }

        return json;

    }

    @Override

    @JavaScriptBody(args = { "s", "args" }, body = ""

        + "var f = new Function(s); "

        + "return f.apply(null, args);"

    )

    public native Object executeScript(String script, Object[] arguments);

    @JavaScriptBody(args = {  }, body = 

          "var h;"

        + "if (!!window && !!window.location && !!window.location.href)\n"

        + "  h = window.location.href;\n"

        + "else "

        + "  h = null;"

        + "return h;\n"

    )

    private static native String findBaseURL();

    @Override

    public URI prepareURL(String content, String mimeType, String[] parameters) {

        try {

            final URL baseURL = new URL(findBaseURL());

            StringBuilder sb = new StringBuilder();

            sb.append("/dynamic?mimeType=").append(mimeType);

            for (int i = 0; i < parameters.length; i++) {

                sb.append("&param" + i).append("=").append(parameters[i]);

            }

            String mangle = content.replace("\n", "%0a")

                .replace("\"", "\\\"").replace(" ", "%20");

            sb.append("&content=").append(mangle);

            URL query = new URL(baseURL, sb.toString());

            URLConnection c = query.openConnection();

            BufferedReader br = new BufferedReader(new InputStreamReader(c.getInputStream()));

            URI connectTo = new URI(br.readLine());

            return connectTo;

        } catch (IOException ex) {

            throw new IllegalStateException(ex);

        } catch (URISyntaxException ex) {

            throw new IllegalStateException(ex);

        }

    }

    @Override

    public boolean canFailWebSocketTest() {

        try {

            Class.forName("java.util.function.Function");

            return false;

        } catch (ClassNotFoundException ex) {

            // running on JDK7, FX WebView WebSocket impl does not work

            return true;

        }

    }

}