package Classes.css.core;

import java.util.HashMap;

import javafx.scene.paint.Color;

public class Context{

	public final static int TYPE_INT = 1;
	public final static int TYPE_STR = 2;
	public final static int TYPE_COL = 3;
	
	/* Context data (associative array) */
	private static HashMap<String, Object>  attr = new HashMap<String, Object>();
	private static HashMap<String, Integer> type = new HashMap<String, Integer>();
	
	/* Add data */
	public static void bind(String index, Integer data){ /* INT */
		Context.attr.put(index,  data);
		Context.type.put(index, Context.TYPE_INT);
	}
	
	public static void bind(String index, String data){ /* String */
		Context.attr.put(index,  data);
		Context.type.put(index, Context.TYPE_STR);
	}
	
	public static void bind(String index, Color data){ /* Color */
		Context.attr.put(index,  data);
		Context.type.put(index, Context.TYPE_COL);
	}
	
	public static void bind(String index, int r, int g, int b){ /* Color */
		Context.attr.put(index,  Color.rgb(r, g, b));
		Context.type.put(index, Context.TYPE_COL);
	}
	
	/* Fetch data -> String */
	public static String getString(String index){
		
		/* (1) If color: return HEX */
		if( Context.type.get(index) == Context.TYPE_COL )
			
			return String.format("#%02X%02X%02X", 
						(int)( ((Color) Context.attr.get(index)).getRed()   * 255 ),
						(int)( ((Color) Context.attr.get(index)).getGreen() * 255 ),
						(int)( ((Color) Context.attr.get(index)).getBlue()  * 255 )
					);
		
		/* (2) By default -> String auto cast*/
		return Context.attr.get(index).toString();
	}

	/* Fetch data -> Int */
	public static Integer getInt(String index) throws Exception{
		
		/* (1) If not INT -> abort */
		if( Context.type.get(index) != Context.TYPE_INT )
			throw new Exception("Not an int value");
			
		
		/* (2) By default -> int */
		return (Integer) Context.attr.get(index);
	}
	
	/* Fetch data -> Color */
	public static Color getColor(String index) throws Exception{

		/* (1) If not COLOR -> abort */
		if( Context.type.get(index) != Context.TYPE_COL )
			throw new Exception("Not a color value");
		
		/* (2) By default -> COLOR */
		return (Color) Context.attr.get(index);
		
	}
		
}