package com.imyeyu.fx.ui.components;

import com.imyeyu.fx.ui.TimiFXUI;
import com.sun.javafx.scene.control.LabeledText;
import javafx.beans.binding.Bindings;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.collections.ListChangeListener;
import javafx.scene.Node;
import javafx.scene.control.Label;
import javafx.scene.control.Skin;
import javafx.scene.control.skin.LabelSkin;
import javafx.scene.paint.Paint;
import javafx.scene.shape.Rectangle;

/**
 * 标题标签，此组件左侧显示标题，并添加中线分割，产生内容分割并充当标题。组件默认最大化宽度
 *
 * @author 夜雨
 * @since 2022-09-06 15:03
 */
public class TitleLabel extends Label implements TimiFXUI {

	/** 标题与分割线间距 */
	protected DoubleProperty spacing;

	/** 分割线颜色 */
	protected ObjectProperty<Paint> lineColor;

	/** 默认构造器 */
	public TitleLabel() {
		this("");
	}

	/**
	 * 标准构造器
	 *
	 * @param text 标题文本
	 */
	public TitleLabel(String text) {
		super(text);

		lineColor = new SimpleObjectProperty<>(Colorful.BORDER);
		spacing = new SimpleDoubleProperty(6);

		setMaxWidth(Double.MAX_VALUE);
	}

	@Override
	protected Skin<?> createDefaultSkin() {
		Skin<?> defaultSkin = super.createDefaultSkin();
		if (defaultSkin instanceof LabelSkin skin) {
			Rectangle line = new Rectangle();
			line.setHeight(1);
			line.fillProperty().bind(lineColor);
			line.translateYProperty().bind(heightProperty().multiply(.5).subtract(1));
			Node node = skin.getChildren().getFirst();
			if (node instanceof LabeledText text) {
				line.widthProperty().bind(Bindings.createDoubleBinding(() -> {
					double textWidth = text.getLayoutBounds().getWidth();
					return getWidth() - textWidth - spacing.get();
				}, spacing, widthProperty(), text.layoutBoundsProperty()));
				line.translateXProperty().bind(Bindings.createDoubleBinding(() -> {
					double textWidth = text.getLayoutBounds().getWidth();
					return textWidth + spacing.get();
				}, spacing, text.layoutBoundsProperty()));
			}
			skin.getChildren().addListener((ListChangeListener<Node>) c -> {
				if (skin.getChildren().getFirst() != line) {
					skin.getChildren().addFirst(line);
				}
			});
			skin.getChildren().addFirst(line);
		}
		return defaultSkin;
	}

	/**
	 * 获取当前分割线颜色
	 *
	 * @return 分割线颜色，默认 {@link TimiFXUI.Colorful#BORDER}
	 */
	public Paint getLineColor() {
		return lineColor.get();
	}

	/**
	 * 设置分割线颜色
	 *
	 * @param lineColor 分割线颜色
	 */
	public void setLineColor(Paint lineColor) {
		this.lineColor.set(lineColor);
	}

	/**
	 * 获取分割线颜色监听
	 *
	 * @return 分割线颜色监听
	 */
	public ObjectProperty<Paint> lineColorProperty() {
		return lineColor;
	}

	/**
	 * 获取当前标题文本和分割线的间距
	 *
	 * @return 标题文本和分割线的间距，默认 6
	 */
	public double getSpacing() {
		return spacing.get();
	}

	/**
	 * 设置标题文本和分割线的间距
	 *
	 * @param spacing 标题文本和分割线的间距
	 */
	public void setSpacing(double spacing) {
		this.spacing.set(spacing);
	}

	/**
	 * 获取当前标题文本和分割线的间距监听
	 *
	 * @return 标题文本和分割线的间距监听
	 */
	public DoubleProperty spacingProperty() {
		return spacing;
	}
}