package peer;

import java.util.Iterator;
import java.util.List;

public class Node {
	
	private int id; // node id must be unique! id = IP of peer ?!?
					//-> Should be unique if we don't consider peers behind a NAT.
	
	private List<Node> neighbours;
	
	public Node(int id, List<Node> neighbours){
		this.id 			= id;
		this.neighbours 	= neighbours;
	}
	
	
	//add one single neighbour
	public void addSingleNeighbour(Node neighbour){
		this.neighbours.add(neighbour);
	}
	
	//add a list of new neighbours
	public void addMultiNeighbours(List<Node> neighbours){
		Iterator<Node> it = neighbours.iterator();
		while(it.hasNext()){
			this.neighbours.add(it.next());
		}
	}
	
	public boolean hasNeighbours(){
		return (this.neighbours.size() > 0);
	}
	
	//checks if actual node has neighbour with given id
	public boolean hasNeighbour(int id){
		for(int i = 0; i < neighbours.size(); i++){
			Node tmp = neighbours.get(i);
			if(tmp.id == id){
				return true;
			}
		}
		return false;
	}
	
	
	

}