package mightypork.gamecore.gui.components.input;


import mightypork.gamecore.core.App;
import mightypork.gamecore.graphics.fonts.IFont;
import mightypork.gamecore.gui.components.DynamicWidthComponent;
import mightypork.gamecore.gui.components.painters.TextPainter;
import mightypork.utils.math.AlignX;
import mightypork.utils.math.color.Color;
import mightypork.utils.math.color.pal.RGB;
import mightypork.utils.math.constraints.vect.Vect;
import mightypork.utils.math.constraints.vect.var.VectVar;


/**
 * Menu-like button with shadow and push state
 *
 * @author Ondřej Hruška (MightyPork)
 */
public class TextButton extends ClickableComponent implements DynamicWidthComponent {

	public final TextPainter textPainter;

	private final VectVar offset = Vect.makeVar();

	public Vect offsetPassive = height().div(16).toVectXY();
	public Vect offsetOver = height().div(20).toVectXY();
	public Vect offsetUnder = height().div(32).toVectXY();

	private final Color color;

	private boolean hoverMove = true;


	public TextButton(IFont font, String text, Color color)
	{
		this.color = color;

		this.textPainter = new TextPainter(font, AlignX.CENTER, this.color, text);
		this.textPainter.setRect(this);
		this.textPainter.setShadow(RGB.BLACK_30, offset);
		textPainter.setVPaddingPercent(5);
	}


	@Override
	protected void renderComponent()
	{
		if (isMouseOver()) {
			if (App.input().isMouseButtonDown(0)) {
				offset.setTo(offsetUnder);
			} else {
				offset.setTo(hoverMove ? offsetOver : offsetPassive);
			}
		} else {
			offset.setTo(offsetPassive);
		}

		textPainter.render();
	}


	/**
	 * Disable offset change on hover
	 */
	public void disableHoverEffect()
	{
		hoverMove = false;
	}


	@Override
	public double computeWidth(double height)
	{
		return textPainter.computeWidth(height);
	}

}