package actions.login;

import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.RadialGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Circle;
import javafx.scene.shape.CircleBuilder;
import javafx.scene.shape.LineTo;
import javafx.scene.shape.MoveTo;
import javafx.scene.shape.Path;
import javafx.scene.shape.QuadCurveTo;
import javafx.scene.shape.Rectangle;
import javafx.scene.shape.StrokeLineJoin;
import javafx.stage.Modality;
import javafx.stage.Stage;
import javafx.stage.StageStyle;

public class LoginDialog extends Stage {

	private static final int DIALOG_WIDHT = 300;

	public LoginDialog(Stage owner) {
		super();
		initOwner(owner);
		initModality(Modality.APPLICATION_MODAL);
		setTitle("Login");
		init();
	}

	private void init() {
		Group root = new Group();
		Scene rootScene = new Scene(root, Color.TRANSPARENT);
		setScene(rootScene);
		initStyle(StageStyle.TRANSPARENT);

		BorderPane layout = new BorderPane();

		layout.setTop(getTitlePane());
		layout.setCenter(initLoginBox());
		layout.setBottom(initButtons());
		root.getChildren().add(layout);
		setScene(rootScene);
	}

	/**
	 * Top panel with cloud
	 * 
	 * @return
	 */
	private Node getTitlePane() {
		StackPane stack = new StackPane();
		Rectangle background = getTopBackground();
		Path path = getCloud();

		Circle border = getCloseCircle();
		stack.getChildren().addAll(background, path);
		stack.getChildren().add(border);

		return stack;
	}

	private Circle getCloseCircle() {
		Circle border = CircleBuilder.create().centerX(30).centerY(30)
				.radius(10).build();
		border.setStroke(Color.WHITESMOKE);
		border.setStrokeWidth(3.0);
		border.setFill(new RadialGradient(0, 2*Math.PI, 0, 0, 5, true,
				CycleMethod.NO_CYCLE, new Stop[] { new Stop(0, Color.BLACK),
						new Stop(1, Color.WHITESMOKE) }));
		StackPane.setAlignment(border, Pos.TOP_RIGHT);
		border.setOnMouseClicked(new EventHandler<Event>() {

			@Override
			public void handle(Event arg0) {
				close();
				hide();
			}
		});
		return border;
	}

	/*
	 * top panel background
	 */
	private Rectangle getTopBackground() {
		Rectangle background = new Rectangle(DIALOG_WIDHT, 150, Color.ORANGE);
		background.setArcHeight(80.0);
		background.setArcWidth(80.0);
		return background;
	}

	private Path getCloud() {
		Path path = new Path();
		path.setStrokeWidth(3.0);
		Stop[] stops = new Stop[] { new Stop(0, Color.ORANGE),
				new Stop(1, Color.WHITESMOKE) };
		LinearGradient gradient = new LinearGradient(0, 0, 1, 0, true,
				CycleMethod.NO_CYCLE, stops);
		path.setFill(gradient);
		path.setStroke(gradient);

		MoveTo start = new MoveTo();
		start.setX(0);
		start.setY(125);

		QuadCurveTo firstQuad = new QuadCurveTo();
		firstQuad.setX(50);
		firstQuad.setY(80);
		firstQuad.setControlX(10);
		firstQuad.setControlY(25);

		QuadCurveTo secondQuad = new QuadCurveTo();
		secondQuad.setX(100);
		secondQuad.setY(80);
		secondQuad.setControlX(75);
		secondQuad.setControlY(0);

		QuadCurveTo thirdQuad = new QuadCurveTo();
		thirdQuad.setX(150);
		thirdQuad.setY(125);
		thirdQuad.setControlX(140);
		thirdQuad.setControlY(25);

		LineTo line = new LineTo();
		line.setX(0);
		line.setY(125);

		path.getElements().add(start);
		path.getElements().add(firstQuad);
		path.getElements().add(secondQuad);
		path.getElements().add(thirdQuad);
		path.getElements().add(line);
		path.setSmooth(true);
		path.setStrokeLineJoin(StrokeLineJoin.BEVEL);
		return path;
	}

	private HBox initButtons() {
		HBox buttons = new HBox();
		buttons.setAlignment(Pos.CENTER_RIGHT);
		
		buttons.getChildren().add(new Button("Login"));
		buttons.setPadding(new Insets(10));
		
		Button cancel = new Button("Cancel");
		cancel.setOnAction(new EventHandler<ActionEvent>() {

			@Override
			public void handle(ActionEvent arg0) {
				// TODO Auto-generated method stub
				close();
			}
		});
		buttons.getChildren().add(cancel);
		return buttons;
	}

	private VBox initLoginBox() {
		VBox loginBox = new VBox();
		loginBox.getChildren().add(new Label("Username"));
		loginBox.getChildren().add(new TextField("Username"));
		loginBox.getChildren().add(new Label("Password"));
		loginBox.getChildren().add(new TextField("Password"));
		loginBox.setPadding(new Insets(10));
		return loginBox;
	}
}