package org.expeditee.gio.javafx;

import org.expeditee.gio.ClipboardManager;
import org.expeditee.gio.DragAndDropManager;
import org.expeditee.gio.EcosystemManager;
import org.expeditee.gio.FontManager;
import org.expeditee.gio.GraphicsManager;
import org.expeditee.gio.ImageManager;
import org.expeditee.gio.InputManager;
import org.expeditee.gio.MiscManager;
import org.expeditee.gio.TextLayoutManager;

import javafx.application.Platform;
import javafx.beans.property.ReadOnlyProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;

public class JavaFXMiscManager extends MiscManager {
	
	/** Singleton instance. */
	private static JavaFXMiscManager _instance;
	
	/** Singleton instantiator. */
	public static JavaFXMiscManager getInstance()
	{
		if (_instance == null) _instance = new JavaFXMiscManager();
		
		return _instance;
	}

	/** Gets the JavaFXClipboardManager if it being used. */
	public static JavaFXClipboardManager getIfUsingJavaFXClipboardManager()
	{
		ClipboardManager manager = EcosystemManager.getClipboardManager();
		if (manager instanceof JavaFXClipboardManager) {
			return (JavaFXClipboardManager) manager;
		}
		
		return null;
	}

	/** Gets the JavaFXDragAndDropManager if it being used. */
	public static JavaFXDragAndDropManager getIfUsingJavaFXDragAndDropManager()
	{
		DragAndDropManager manager = EcosystemManager.getDragAndDropManager();
		if (manager instanceof JavaFXDragAndDropManager) {
			return (JavaFXDragAndDropManager) manager;
		}
		
		return null;
	}

	/** Gets the JavaFXFontManager if it being used. */
	public static JavaFXFontManager getIfUsingJavaFXFontManager()
	{
		FontManager manager = EcosystemManager.getFontManager();
		if (manager instanceof JavaFXFontManager) {
			return (JavaFXFontManager) manager;
		}
		
		return null;
	}

	/** Gets the JavaFXGraphicsManager if it being used. */
	public static JavaFXGraphicsManager getIfUsingJavaFXGraphicsManager()
	{
		GraphicsManager manager = EcosystemManager.getGraphicsManager();
		if (manager instanceof JavaFXGraphicsManager) {
			return (JavaFXGraphicsManager) manager;
		}
		
		return null;
	}

	/** Gets the JavaFXImageManager if it being used. */
	public static JavaFXImageManager getIfUsingJavaFXImageManager()
	{
		ImageManager manager = EcosystemManager.getImageManager();
		if (manager instanceof JavaFXImageManager) {
			return (JavaFXImageManager) manager;
		}
		
		return null;
	}

	/** Gets the JavaFXInputManager if it being used. */
	public static JavaFXInputManager getIfUsingJavaFXInputManager()
	{
		InputManager manager = EcosystemManager.getInputManager();
		if (manager instanceof JavaFXInputManager) {
			return (JavaFXInputManager) manager;
		}
		
		return null;
	}

	/** Gets the JavaFXMiscManager if it being used. */
	public static JavaFXMiscManager getIfUsingJavaFXMiscManager()
	{
		MiscManager manager = EcosystemManager.getMiscManager();
		if (manager instanceof JavaFXMiscManager) {
			return (JavaFXMiscManager) manager;
		}
		
		return null;
	}

	/** Gets the JavaFXTextLayoutManager if it being used. */
	public static JavaFXTextLayoutManager getIfUsingJavaFXTextLayoutManager()
	{
		TextLayoutManager manager = EcosystemManager.getTextLayoutManager();
		if (manager instanceof JavaFXTextLayoutManager) {
			return (JavaFXTextLayoutManager) manager;
		}
		
		return null;
	}
	
	/** Blocks until the value of the given property equals the given value. */
	public static <T> void waitUntilPropertyEquals(ReadOnlyProperty<? extends T> property, T value)
	{
		if (property.getValue().equals(value)) return;
		
		ChangeListener<T> listener = new ChangeListener<T>() {
			@Override
			public void changed(ObservableValue<? extends T> observable, T oldValue, T newValue) {
				if (newValue == value || newValue.equals(value)) {
					synchronized (this) {
						notify();
					}
				}
			}
		};
		
		synchronized (listener) {
			property.addListener(listener);
			while (!property.getValue().equals(value)) {
				try {
					listener.wait();
				} catch (InterruptedException e) {
				}
			}
			property.removeListener(listener);
		}
	}
	
	@Override
	public void beep() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public boolean browse(String url) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public String print(String file) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public String open(String file) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	protected void scheduleRunnable(Runnable routine)
	{
		Platform.runLater(routine);
	}

	@Override
	protected boolean isGIOThread()
	{
		return Platform.isFxApplicationThread();
	}

}