import java.util.Random;

/** 
 * A Class to hold info about rabbits 
 * Mostly as an illustration of comparable
 * @author gtowell
 * Created: Feb 2020
 * Modified: Oct 17, 2020
 * MOdified: Aug 9, 2021
 */
public class Rabbit implements Comparable<Rabbit> {
    
    /** An id */
    private final int iD;
    /** The rabbit's nickname: flopsy, mopsy, peter, etc */
    private final String nickname;

    /**
     * Create an instance of rabbit
     * @param breed the breed 
     * @param id an ID number
     * @param nn a stirng nickname.  If null, a random char set
     */
    public Rabbit(int id, String nn) {
        this.iD = id;
        this.nickname = nn==null ? makeName() : nn;
    }

    /** 
     * Default Constructor.  
     * An random id and name
     */
    public Rabbit() {
        this(new Random().nextInt(200000), null);
    }

    /**
     * Make a 7 lower case char random string.
     * @return a random string
     */
    private String makeName() {
        Random r = new Random();
        StringBuffer sb = new StringBuffer();
        for (int i=0; i<7; i++) {
            char c = (char)('a' + r.nextInt(26));
            sb.append(c);
        }
        return sb.toString();
    }

    /** How to determine if two rabbits are the same */
    public boolean equals(Rabbit otherRabbit) {
        return otherRabbit.getId()==iD;
    }

    public int getId() {
        return iD;
    }
    public String getNickName() {
        return nickname;
    }
    
    /** 
     * A String rep of a rabbit
     */
    public String toString() {
        return "[["+ iD + " " + nickname + "]]";
    }

    /** Compare two rabbits based on their nicknames
     * Just use string compare :0)
     * */
    @Override
    public int compareTo(Rabbit o) {
        int tmp = nickname.compareTo(o.getNickName());
        if (tmp != 0) {
            return tmp;
        }
        return iD - o.getId();
    }

    public static void main(String[] args) {
        System.out.println("Hello rabbit");
    }
}