package org.expeditee.reflection;

import java.io.File;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Arrays;
import java.util.List;

public class JavaFX {
	public static Class JFXPanel;

	public static Class Platform;
	public static Method PlatformRunLater;

	public static Class Group;
	public static Method GroupGetChildren;

	public static Class Scene;
	public static Constructor SceneConstructor;

	public static Class WebView;
	public static Method JFXPanelSetScene;
	public static Method WebViewSetPrefSize;
	public static Method WebViewGetEngine;
	public static Method WebViewSetContextMenuEnabled;

	public static Class WebEngine;
	public static Method WebEngineLoad;
	public static Method WebEngineGetLocation;
	public static Method WebEngineGetLoadWorker;
	public static Method WebEngineGetHistory;
	public static Method WebEngineReload;
	public static Method WebEngineExecuteScript;

	public static Class WebHistory;
	public static Method WebHistoryGo;

	public static Class Worker;
	public static Method WorkerStateProperty;

	public static Class ReadOnlyObjectProperty;
	public static Method ReadOnlyObjectPropertyAddListener;

	public static Class ChangeListener;

	public static Class ObservableValue;

	public static Class State;
	public static List<Object> StateConstants;
	
	public static Class EventHandler;
	
	public static Class Node;
	public static Method NodeSetOnMouseClicked;
	
	public static Class MouseEvent;
	public static Method MouseEventGetButton;
	
	public static Class MouseButton;

	public static Class JSObject;
	public static Method JSObjectEval;
	public static Method JSObjectCall;
	public static Method JSObjectGetMember;
	public static Method JSObjectGetSlot;

	static {
		String javaLibDir = System.getProperty("java.home") + File.separator + "lib" + File.separator;
		try {
			ClassLoader classLoader = ClassLoader.getSystemClassLoader();

			File jar = new File(javaLibDir + "jfxrt.jar");

			Method addURL = URLClassLoader.class.getDeclaredMethod("addURL", URL.class);
			addURL.setAccessible(true);
			addURL.invoke(classLoader, jar.toURI().toURL());

			JFXPanel = Class.forName("javafx.embed.swing.JFXPanel", false, classLoader);

			Platform = classLoader.loadClass("javafx.application.Platform");
			PlatformRunLater = Platform.getMethod("runLater", Runnable.class);

			// Setting JFX to not exit when all panels are hidden, otherwise moving, resizing and changing frames will
			// cause JFX to exit, preventing JFX elements from displaying at all
			Platform.getMethod("setImplicitExit", boolean.class).invoke(null, false);

			Group = classLoader.loadClass("javafx.scene.Group");
			GroupGetChildren = Group.getMethod("getChildren");

			Scene = classLoader.loadClass("javafx.scene.Scene");
			SceneConstructor = Scene.getConstructor(classLoader.loadClass("javafx.scene.Parent"));

			WebView = classLoader.loadClass("javafx.scene.web.WebView");
			JFXPanelSetScene = JFXPanel.getMethod("setScene", Scene);
			WebViewSetPrefSize = WebView.getMethod("setPrefSize", double.class, double.class);
			WebViewGetEngine = WebView.getMethod("getEngine");
			WebViewSetContextMenuEnabled = WebView.getMethod("setContextMenuEnabled", boolean.class);

			WebEngine = classLoader.loadClass("javafx.scene.web.WebEngine");
			WebEngineLoad = WebEngine.getMethod("load", String.class);
			WebEngineGetLocation = WebEngine.getMethod("getLocation");
			WebEngineGetLoadWorker = WebEngine.getMethod("getLoadWorker");
			WebEngineGetHistory = WebEngine.getMethod("getHistory");
			WebEngineReload = WebEngine.getMethod("reload");
			WebEngineExecuteScript = WebEngine.getMethod("executeScript", String.class);
			
			WebHistory = classLoader.loadClass("javafx.scene.web.WebHistory");
			WebHistoryGo = WebHistory.getMethod("go", int.class);

			Worker = classLoader.loadClass("javafx.concurrent.Worker");
			WorkerStateProperty = Worker.getMethod("stateProperty");

			ChangeListener = classLoader.loadClass("javafx.beans.value.ChangeListener");

			ReadOnlyObjectProperty = classLoader.loadClass("javafx.beans.property.ReadOnlyObjectProperty");
			ReadOnlyObjectPropertyAddListener = ReadOnlyObjectProperty.getMethod("addListener", ChangeListener);

			ObservableValue = classLoader.loadClass("javafx.beans.value.ObservableValue");

			State = classLoader.loadClass("javafx.concurrent.Worker$State");
			StateConstants = Arrays.asList(State.getEnumConstants());
			
			EventHandler = classLoader.loadClass("javafx.event.EventHandler");
			
			Node = classLoader.loadClass("javafx.scene.Node");
			NodeSetOnMouseClicked = Node.getMethod("setOnMouseClicked", EventHandler);
			
			MouseEvent = classLoader.loadClass("javafx.scene.input.MouseEvent");
			MouseEventGetButton = MouseEvent.getMethod("getButton");
			
			MouseButton = classLoader.loadClass("javafx.scene.input.MouseButton");

			JSObject = classLoader.loadClass("netscape.javascript.JSObject");
			JSObjectEval = JSObject.getMethod("eval", String.class);
			JSObjectCall = JSObject.getMethod("call", String.class, Object[].class);
			JSObjectGetMember = JSObject.getMethod("getMember", String.class);
			JSObjectGetSlot = JSObject.getMethod("getSlot", int.class);

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}