package application.customviews;

import application.helpers.Utils;
import application.helpers.wrappers.SubElement;
import application.res.Colors;
import application.res.Text;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.value.ChangeListener;
import javafx.event.EventHandler;
import javafx.scene.control.Label;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.shape.Circle;

/**
 * This class represents one of the sub elements of the select view.
 * {@link EntryView}s can contain sub elements like the information concerning
 * the date of birth which is represented in this class. They can be selected on
 * their own and the selection state is indicated by a circle on the left side
 * of the sub element.
 * 
 * @author Bianca
 *
 */

public class SubEntryView extends HBox
{
	/**
	 * Circle which indicates the selection state. Invisible / grey if not selected,
	 * green if selected.
	 */
	private Circle c;
	/**
	 * Property which indicates whether the sub element is selected.
	 */
	private BooleanProperty selected;
	/**
	 * Data of this sub element.
	 */
	private SubElement elem;

	/**
	 * Initializes all attributes, sets up the view and draws the initial circle.
	 * Starts in the unselected state.
	 * 
	 * @param elem The data of the sub element.
	 */
	public SubEntryView(SubElement elem)
	{
		this.elem=elem;
		selected = new SimpleBooleanProperty(false);
		BorderPane circleContainer = new BorderPane();
		c = new Circle(10, Colors.grey);
		circleContainer.setCenter(c);
		getChildren().add(circleContainer);
		getChildren().add(new Label(String.format(Text.F_ME_SAVE, Utils.shortenHKStrings(getName()), getValue())));
		setOnMouseClicked(new EventHandler<MouseEvent>()
		{
			@Override
			public void handle(MouseEvent event)
			{
				setSelected(!isSelected());
			}
		});

	}

	/**
	 * Returns the name / identifier of the sub element.
	 * 
	 * @return The described value.
	 */
	public String getName()
	{
		return elem.getType();
	}

	/**
	 * Returns the value / entrycount of the sub element.
	 * 
	 * @return The described value.
	 */
	public int getValue()
	{
		return elem.getValue();
	}

	/**
	 * Allows for a listener to be attached to the selected property of the sub
	 * element.
	 * 
	 * @param listen Listener to add to the property
	 */
	public void addCheckListener(ChangeListener<Boolean> listen)
	{
		selected.addListener(listen);
	}

	/**
	 * Shows whether the element is selected or not.
	 * 
	 * @return The describes value.
	 */
	public boolean isSelected()
	{
		return selected.get();
	}

	/**
	 * Changes the value of the selection of this element to the given selection and
	 * adjusts the circles color.
	 * 
	 * @param value The value the selection should take.
	 */
	public void setSelected(boolean value)
	{
		if (value) //select
		{
			c.setFill(Colors.green);
		} 
		else //remove selection
		{
			c.setFill(Colors.grey);
		}
		this.selected.set(value);
	}

}