package algs12;
import stdlib.*;

public class XCardSimple implements Comparable<XCardSimple> {
  public static enum Rank { TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN, JACK, QUEEN, KING, ACE }
  public static enum Suit { CLUBS, DIAMONDS, HEARTS, SPADES }

  public final Rank rank;
  public final Suit suit;
  public XCardSimple (Rank r, Suit s) { this.rank = r; this.suit = s; }
  public String toString () { return rank + " of " + suit; }
  public int compareTo (XCardSimple that) {
    if (this.suit.compareTo (that.suit) < 0) return -1;
    if (this.suit.compareTo (that.suit) > 0) return +1;
    if (this.rank.compareTo (that.rank) < 0) return -1;
    if (this.rank.compareTo (that.rank) > 0) return +1;
    return 0;
  }
  public boolean equals (Object that) {
    if (that == null)
      return false;
    if (this.getClass() != that.getClass())
      return false;
    // This does the right thing but is inefficient.
    // Since equals may be used more than compareTo, there is usually a separate implementation.
    return 0 == this.compareTo ((XCardSimple) that);
  }

  public static void main (String[] args) {
    Suit s1 = Suit.CLUBS;
    //Suit s2 = new Suit();

    XCardSimple c1 = new XCardSimple(Rank.ACE, Suit.SPADES);
    XCardSimple c2 = new XCardSimple(Rank.ACE, Suit.SPADES);
    StdOut.println (c1 + (c1.equals(c2) ? " equals " : " does not equal ") + c2);
  }
}