""" 
blackjack_again.py

 $ python blackjack_again.py 
 ----- blackjack ---
 Playing ... we have a <Deck of 52 cards>.
 A hand of 2 cards is <Hand Eight of Clubs, Nine of Hearts, value is 17>.
 A hand of 3 cards is <Hand Six of Clubs, Nine of Spades, Seven of Diamonds, value is 22>.
 ----- again     ----
 Playing ... we have a <Deck of 47 cards>.
 A hand of 2 cards is <Hand Four of Diamonds, Queen of Hearts, value is 14>.
 A hand of 3 cards is <Hand Queen of Spades, Five of Clubs, Four of Clubs, value is 19>.

 Jim Mahoney | Nov 2018 | cs.marlboro.college | MIT License
"""
import random

suits= ['Diamonds', 'Hearts', 'Spades', 'Clubs']

ranks= ['Ace', 'Two', 'Three', 'Four', 'Five', 'Six', 'Seven', 'Eight',
        'Nine', 'Ten', 'Jack', 'Queen', 'King']

class Card:
    """ a playing card has a rank and suit """
    
    def __init__(self, rank, suit):
        self.rank = rank
        self.suit = suit
    
    def value(self):
        if self.rank == 'Ace':
            return 1
        if self.rank == 'Two':
            return 2
        if self.rank == 'Three':
            return 3
        if self.rank == 'Four':
            return 4
        if self.rank == 'Five':
            return 5
        if self.rank == 'Six':
            return 6
        if self.rank == 'Seven':
            return 7
        if self.rank == 'Eight':
            return 8
        if self.rank == 'Nine':
            return 9
        else:
            return 10

    def __str__(self):
        return "{} of {}".format(self.rank, self.suit)

class Deck:
    """ a deck of cards can be created, shuffled, dealt from """
    def __init__(self):
        self.cards = []
        for suit in suits:
            for rank in ranks:
                card = Card(rank, suit)
                self.cards.append(card)
    
    def shuffle(self):
        return random.shuffle(self.cards)
    
    def deal_card(self):
        card = self.cards.pop(0)
        return card
        
    def cards_left(self):
        return len(self.cards)

    def __str__(self):
        return "<Deck of {} cards>".format(self.cards_left())
    
class Hand:
    """ A blackjack hand """
    
    def __init__(self, deck, n_cards):
        self.cards= []
        for i in range(n_cards):
            self.cards.append(deck.deal_card())

    def value(self):
        result = 0
        for card in self.cards:
            result = result + card.value()
        return result
            
    def __str__(self):
        result = "<Hand "
        for card in self.cards:
            result = result + str(card) + ", "
        return result + "value is {}>".format(self.value())

class Game:
    """ Do some blackjack stuff """

    def __init__(self):
        self.deck = Deck()
        self.deck.shuffle()

    def play(self):
        """ deal two hands ; print some stuff """
        print("Playing ... we have a {}.".format(self.deck))
        for n in (2,3):
            hand = Hand(self.deck, n)
            print("A hand of {} cards is {}.".format(n, hand))
    
def main():
    game = Game()
    print('----- blackjack ---')
    game.play()
    print('----- again     ----')
    game.play()
    
main()