package classes;

import java.util.ArrayList;
import java.util.UUID;

/**
 * The class "CpsNode" represents empty Objects in the system. They are just
 * nodes between Objects
 * 
 * @author Gruppe14
 *
 */
public class Node extends AbstractCanvasObject {
	
	private String uniqueID;
	
	/**
	 * Create a new node in the system with an user-defined name.
	 * 
	 * @param objName
	 *            String
	 */
	public Node(String objName) {
		super(objName);
		this.setConnections(new ArrayList<Edge>());
		this.setImage("/Images/node.png");
		this.setSav("CVS");
		this.setId(IdCounter.nextId());
		this.uniqueID = "Node " + UUID.randomUUID();
	}
	
	public Node(Node node){
		super(node);
		this.uniqueID = "Node " + UUID.randomUUID();
	}
	
	public String toString(){
		return "Node ID:" + super.id;
	}
	
	@Override
	public AbstractCanvasObject makeCopy() {
		return new Node(this);
	}
	
	public String getUniqueID() {
		if(this.uniqueID == null)
			this.uniqueID = "Node "+UUID.randomUUID().toString();
		return uniqueID;
	}

	public ArrayList<String> getAllConnectedHolons(ArrayList<AbstractCanvasObject> visited) {
		ArrayList<String> conns = new ArrayList<String>();
		
		visited.add(this);
		for(Edge e : this.connections) {
			AbstractCanvasObject a = e.getA();
			AbstractCanvasObject b = e.getB();
			if(b.equals(this) && !visited.contains(a)) {
				if(a instanceof HolonObject) {
					conns.add(((HolonObject) a).holon.getUniqueID());
				} else if(a instanceof HolonSwitch) {
					conns.addAll(((HolonSwitch)a).getAllConnectedHolons(visited));
				} else if(a instanceof Node) {
					conns.addAll(((Node) a).getAllConnectedHolons(visited));
				} else if(a instanceof GroupNode) {
					conns.addAll(((GroupNode) a).getAllConnectedHolons(visited));
				}
				visited.add(a);
			} else if(a.equals(this) && !visited.contains(b)) {
				if(b instanceof HolonObject) {
					conns.add(((HolonObject) b).holon.getUniqueID());
				} else if(b instanceof HolonSwitch) {
					conns.addAll(((HolonSwitch)b).getAllConnectedHolons(visited));
				} else if(b instanceof Node) {
					conns.addAll(((Node) b).getAllConnectedHolons(visited));
				} else if(b instanceof GroupNode) {
					conns.addAll(((GroupNode) b).getAllConnectedHolons(visited));
				}
				visited.add(b);
			}
		}
		
		return conns;
	}
}