import java.util.Scanner;

public class Player {
    private Deck hand;
    private boolean human;

    public Player(boolean human) {
        this.human = human;
        hand = new Deck(true);
    }

    public void giveCard(Card c, boolean tell) {
        hand.add(c);
        // for human players, we print the card that was drawn
        if (tell && human) {
            System.out.println("You drew the " + c);
        }
    }

    public boolean hasWon() {
        return hand.getSize() == 0;
    }

    public int numCards() {
        return hand.getSize();
    }

    // called when it's players turn to play a card
    // if no card can be playerd, we return null
    public Card playCard(Card upCard) {
        if (human) {
            System.out.println("Up card is: " + upCard);
            System.out.println("Hand:");
            System.out.println("0. Draw Card");
            hand.print();

            // keep looping until they choose a valid option
            while (true) {
                System.out.println("What card to play?");
                Scanner in = new Scanner(System.in);
                int position = in.nextInt();

                // they want a card instead
                if (position == 0) {
                    return null;
                }

                if (position > 0 && position <= hand.getSize()) {
                    return hand.take(position - 1);
                }
            }
        } else {
            // this is the AI for non-human players
            // do the first non-wild card that matches
            for (int i = 0; i < hand.getSize(); i++) {
                Card c = hand.get(i);
                if (c.getRank() == 8) {
                    continue;
                }
                if (c.getRank() == upCard.getRank() ||
                    c.getSuit() == upCard.getSuit()) {
                    return hand.take(i);
                }
            }

            // if we have an 8 return that
            for (int i = 0; i < hand.getSize(); i++) {
                if (hand.get(i).getRank() == 8) {
                    return hand.take(i);
                }
            }

            // none matched, return null
            return null;
        }
    }
}