function Card(suit, number) {
    var suit = suit;
    var number = number;

    this.getNumber = function() {
        return number;
    }

    this.getSuit = function() {
        return suit;
    }

    this.getValue = function() {
        if (number == 1) {
            return 11;
        } else if (number > 10) {
            return 10;
        } else {
            return number;
        }
    }
}

function Hand() {
    var hand = [deal(), deal()];

    this.getHand = function() {
        return hand;
    }

    this.hitMe = function() {
        hand.push(deal());
    }

    this.printHand = function() {
        var string = "";
        for (var i = 0; i < hand.length; i++) {
            string += hand[i].getNumber() + " of suit " + hand[i].getSuit();
            if (i < (hand.length - 1)) {
                string += ", ";
            }
        }
        return string;
    }

    this.score = function() {
        var aces = 0;
        var sum = 0;
        for (var i = 0; i < hand.length; i++) {
            sum += hand[i].getValue();
            if (hand[i].getValue() == 11) {
                aces++;
            }
        }
        while (aces > 0 && sum > 21) {
            aces--;
            sum -= 10;
        }
        return sum;
    }
}

function deal() {
    var suit = Math.floor(Math.random( ) * 4 + 1);
    var number = Math.floor(Math.random( ) * 13 + 1);
    return new Card(suit, number);
}

function playAsDealer() {
    var hand = new Hand();
    while (hand.score() < 17) {
        hand.hitMe();
    }
    return hand;
}

function playAsUser() {
    var hand = new Hand();
    var decision = confirm("Your hand is "+ hand.printHand() + ": Hit OK to hit (take another card) or Cancel to stand");
    while(decision) {
        hand.hitMe();
        decision = confirm("Your hand is "+ hand.printHand() + ": Hit OK to hit (take another card) or Cancel to stand");
    }
    return hand;
}