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package org.netbeans.html.bootagent;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

import java.lang.reflect.Modifier;

import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.Executors;

import net.java.html.BrwsrCtx;

import net.java.html.boot.BrowserBuilder;

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

import org.testng.Assert;

import static org.testng.Assert.assertNotSame;

import static org.testng.Assert.assertSame;

import org.testng.annotations.Factory;

/**

 *

 * @author Jaroslav Tulach

 */

public class DynamicClassLoaderTest {

    private static Class<?> browserClass;

    private static Fn.Presenter browserPresenter;

    public DynamicClassLoaderTest() {

    }

    @Factory public static Object[] compatibilityTests() throws Exception {

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

            loadPage("empty.html").

            invoke("initialized");

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

            @Override

            public void run() {

                bb.showAndWait();

            }

        });

        List<Object> res = new ArrayList<Object>();

        Class[] arr = new Class[] { loadClass() };

        for (Class c : arr) {

            for (Method m : c.getDeclaredMethods()) {

                if ((m.getModifiers() & Modifier.PUBLIC) != 0) {

                    res.add(new KOFx(browserPresenter, m));

                }

            }

        }

        return res.toArray();

    }

    static synchronized Class<?> loadClass() throws InterruptedException {

        while (browserClass == null) {

            DynamicClassLoaderTest.class.wait();

        }

        return browserClass;

    }

    public static void ready(Class<?> browserCls) throws Exception {

        Class<?> origClazz = ClassLoader.getSystemClassLoader().loadClass(DynamicClassLoaderTest.class.getName());

        final Field f1 = origClazz.getDeclaredField("browserClass");

        f1.setAccessible(true);

        f1.set(null, browserCls);

        final Field f2 = origClazz.getDeclaredField("browserPresenter");

        f2.setAccessible(true);

        f2.set(null, Fn.activePresenter());

        synchronized (origClazz) {

            origClazz.notifyAll();

        }

    }

    public static void initialized() throws Exception {

        BrwsrCtx b1 = BrwsrCtx.findDefault(DynamicClassLoaderTest.class);

        assertNotSame(b1, BrwsrCtx.EMPTY, "Browser context is not empty");

        BrwsrCtx b2 = BrwsrCtx.findDefault(DynamicClassLoaderTest.class);

        assertSame(b1, b2, "Browser context remains stable");

        Assert.assertNotSame(DynamicClassLoaderTest.class.getClassLoader(),

            ClassLoader.getSystemClassLoader(),

            "Should use special classloader, not system one"

        );

        DynamicClassLoaderTest.ready(JavaScriptBodyTst.class);

    }

}