package poker.table;

import java.security.SecureRandom;

public class CardShuffler {
	private int[] cards = new int[52];

	public int[] shuffle() {
		this.rearrangeCards();
		SecureRandom secureRandom = new SecureRandom();

		for (int i = 0; i < this.cards.length; i++) {
			int randomPosition = i + secureRandom.nextInt(this.cards.length - i);
			int temp = this.cards[i];
			this.cards[i] = this.cards[randomPosition];
			this.cards[randomPosition] = temp;
		}

		return this.cards;
	}

	private void rearrangeCards() {
		for(int i = 0; i < this.cards.length; this.cards[i] = i++) {
			this.cards[i] = i;
		}

	}
}