package solitaire;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

final class Deck {
    private static final Suit[] suits = Suit.values();
    private static final Rank[] ranks = Rank.values();

    private final List<Card> cards;

    Deck() {
	this.cards = new ArrayList<>(suits.length * ranks.length);

	for (Suit s : suits)
	    for (Rank r : ranks)
		cards.add(new Card(s, r));
    }

    void shuffle() {
	Collections.shuffle(cards);
    }

    Card draw() {
	return cards.removeLast();
    }

    boolean isEmpty() {
	return cards.isEmpty();
    }

    @Override
    public String toString() {
	if (isEmpty())
	    return "{   }";

	return "{ * }";
    }
}