package Classes.css.core.rule;

import Classes.css.core.Rule;
import javafx.scene.Node;
import javafx.scene.layout.AnchorPane;

public class Position extends Rule{	
	
	/* Attributes */
	private String  direction;
	private Integer offset;
	
	
	/* Constructor -> Dispatch attributes */
	public Position(String l_side, int r_side){
		
		this.direction = l_side;
		this.offset    = r_side;
			
	}
	
	
	public void apply(Node target) throws Exception{
		
		/* (1) Initialization
		------------------------------------ */
		/* (1) If not anchor pane -> abort */
		if( !(target.getParent() instanceof AnchorPane) )
			throw new Exception("Target's parent is not an 'AnchorPane'");
		
		/* (2) Cast for readability */
		double _offset = this.offset;
		

		/* (2) Manage directions
		------------------------------------ */
		/* (1) Direction: TOP */
		if( this.direction == "top" )
			AnchorPane.setTopAnchor(target, _offset);
		
		/* (2) Direction: LEFT */
		else if( this.direction == "left" )
			AnchorPane.setLeftAnchor(target, _offset);
		
		/* (3) Direction: RIGHT */
		else if( this.direction == "right" )
			AnchorPane.setRightAnchor(target, _offset);
		
		/* (4) Direction: BOTTOM */
		else if( this.direction == "bottom" )
			AnchorPane.setBottomAnchor(target, _offset);
		
	}


	@Override
	public String toString() {
		return this.direction+": "+this.offset+";";
	}


}