#!/usr/bin/python
# encoding: utf-8
"""
project euler (projecteuler.net) problem 54
solution by Kevin Retzke (retzkek@gmail.com), April 2012

Problem #54
============
In the card game poker, a hand consists of five cards and are ranked, from 
lowest to highest, in the following way:

    * High Card: Highest value card.
    * One Pair: Two cards of the same value.
    * Two Pairs: Two different pairs.
    * Three of a Kind: Three cards of the same value.
    * Straight: All cards are consecutive values.
    * Flush: All cards of the same suit.
    * Full House: Three of a kind and a pair.
    * Four of a Kind: Four cards of the same value.
    * Straight Flush: All cards are consecutive values of same suit.
    * Royal Flush: Ten, Jack, Queen, King, Ace, in same suit.

The cards are valued in the order:
2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King, Ace.

If two players have the same ranked hands then the rank made up of the highest
value wins; for example, a pair of eights beats a pair of fives (see example 1
below). But if two ranks tie, for example, both players have a pair of queens,
then highest cards in each hand are compared (see example 4 below); if the 
highest cards tie then the next highest cards are compared, and so on.

Consider the following five hands dealt to two players:
Hand        Player 1        Player 2        Winner
1       5H 5C 6S 7S KD
Pair of Fives
        2C 3S 8S 8D TD
Pair of Eights
        Player 2

2       5D 8C 9S JS AC
Highest card Ace
        2C 5C 7D 8S QH
Highest card Queen
        Player 1

3       2D 9C AS AH AC
Three Aces
        3D 6D 7D TD QD
Flush with Diamonds
        Player 2

4       4D 6S 9H QH QC
Pair of Queens
Highest card Nine
        3D 6D 7H QD QS
Pair of Queens
Highest card Seven
        Player 1

5       2H 2D 4C 4D 4S
Full House
With Three Fours
        3C 3D 3S 9S 9D
Full House
with Three Threes
        Player 1

The file, poker.txt, contains one-thousand random hands dealt to two players. 
Each line of the file contains ten cards (separated by a single space): the 
first five are Player 1's cards and the last five are Player 2's cards. You 
can assume that all hands are valid (no invalid characters or repeated cards),
each player's hand is in no specific order, and in each hand there is a clear
winner.

How many hands does Player 1 win?
"""
import poker

def readGame(filename):
    """
    Read two-player card game where each line represents a hand,
    with the first five cards player one's and the rest player two's.
    The cards are all seperated by a space.
    """
    game = []
    f = open(filename)
    for line in f:
        cstrs = line.split()
        hand1 = []
        hand2 = []
        for i in range(5):
            hand1.append(poker.card(cstrs[i]))
        for i in range(5,10):
            hand2.append(poker.card(cstrs[i]))
        game.append((poker.hand(hand1), poker.hand(hand2)))
    return game

def printHand(p1, p2):
    (p1h,p1v) = p1.value()
    (p2h,p2v) = p2.value()
    winner = 0
    if p1 > p2:
        winner = 1
    elif p1 < p2:
        winner = 2
    print "%s | %s : %s | %s : player %i wins" % (p1,p2,poker.hand.hands[p1h],
        poker.hand.hands[p2h],winner)
    return winner

if __name__ == "__main__":
    import sys
    print "Test:"
    results=[]
    for p1,p2 in readGame('test.txt'):
        results.append(printHand(p1,p2))
    if results != [2,1,2,1,1]:
        print "FAIL",results
        sys.exit(1)
    print "Problem:"
    result=0
    for p1,p2 in readGame('poker.txt'):
        printHand(p1,p2)
        if p1 > p2:
            result += 1
    print result
