"""
 card.py

 Zelle's python book, chap 10 exercise 11 pg 333-334 :
 create a playing card object.

 Jim Mahoney | Nov 2014
"""

from random import randrange

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

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

def random_choice_from(some_list):
    """ Return a random element from a list """
    # ... but lookup random.choice which does this for you ...
    length = len(some_list)
    random_index = randrange(length)
    return some_list[random_index]

class Card(object):
    """
    An object that represents a playing card, including its
    rank (e.g. 'Ace' or 'Two') and suit (e.g. 'Clubs' or 'Hearts')
    """

    def __init__(self, rank=False, suit=False):
        # Set card rank, or pick a random rank if one isn't given.
        if not rank in card_ranks:
            rank = False
        if not rank:
            rank = random_choice_from(card_ranks)
        self.rank = rank
        # Set card suit, or pick a random suit if one isn't given.
        if not suit in suit_names:
            suit = False
        if not suit:
            suit = random_choice_from(suit_names)
        self.suit = suit

    def getRank(self):
        return self.rank

    def getSuit(self):
        return self.suit

    def __str__(self) :
        return self.getRank() + ' of ' + self.getSuit() 
        
    def BJValue(self):
        """ Return Black Jack value : Ace is 1, 10 through King is 10 """
        # This is *not* a great implementation ... but it works.
        if self.rank == 'Ace':
            return 1
        elif self.rank == 'Two':
            return 2
        elif self.rank == 'Three':
            return 3
        elif self.rank == 'Four':
            return 4
        elif self.rank == 'Five':
            return 5
        elif self.rank == 'Six':
            return 6
        elif self.rank == 'Seven':
            return 7
        elif self.rank == 'Eight':
            return 8
        elif self.rank == 'Nine':
            return 9
        else:
            return 10

    
def main():
    for i in range(20):
        card = Card()
        print 'The {} has blackjack value {}.'.format(str(card), card.BJValue())

main()