import random
from typing import List, Tuple

SUITS = ['Hearts', 'Diamonds', 'Clubs', 'Spades']
RANKS = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A']
RANK_VALUES = {rank: i for i, rank in enumerate(RANKS, 2)}

Card = Tuple[str, str]  # ('Rank', 'Suit')
Hand = List[Card]
Deck = List[Card]
player1: Hand
player2: Hand
deck: Deck
new_card: Card

def create_deck() -> Deck:
    Deck = [(rank, suit) for suit in SUITS for rank in RANKS]
    return Deck

def deal_card(deck) -> Card:
    pull_card = deck.pop(0)
    print("DEBUG - Dealt card:", pull_card)
    return pull_card  

def deal_hand(deck, num=5) -> Hand:
    hand = random.sample(deck, num)
    for card in hand:
        deck.remove(card)
    return hand

def pop_list(lst: List, index: int) -> Tuple:
    """Removes and returns the element at the specified index from the list."""
    if index < 0:
        raise IndexError("Index out of range")
    element = lst[index]
    lst.remove(element)
    return element

def card_in_hand(card: Card, hand: Hand) -> bool:
    rank, suit = card
    for r, s in hand:
        if r.strip().upper() == rank.strip().upper() and s.strip().capitalize() == suit.strip().capitalize():
            return True
    return False

def hand_rank(hand):
    ranks = sorted([RANK_VALUES[card[0]] for card in hand], reverse=True)
    suits = [card[1] for card in hand]
    rank_counts = {r: ranks.count(r) for r in ranks}
    is_flush = len(set(suits)) == 1
    is_straight = all(ranks[i] - 1 == ranks[i+1] for i in range(len(ranks)-1))
    counts = sorted(rank_counts.values(), reverse=True)
    if is_straight and is_flush:
        return (8, ranks)  # Straight flush
    elif counts[0] == 4:
        return (7, ranks)  # Four of a kind
    elif counts[0] == 3 and counts[1] == 2:
        return (6, ranks)  # Full house
    elif is_flush:
        return (5, ranks)  # Flush
    elif is_straight:
        return (4, ranks)  # Straight
    elif counts[0] == 3:
        return (3, ranks)  # Three of a kind
    elif counts[0] == 2 and counts[1] == 2:
        return (2, ranks)  # Two pair
    elif counts[0] == 2:
        return (1, ranks)  # One pair
    else:
        return (0, ranks)  # High card

def show_hand(hand):
    return '\n '.join([f"{rank} of {suit}" for rank, suit in hand])

def replace_card_from_hand(hand: Hand, card: Card, new_card: Card) -> bool:
    for i, existing_card in enumerate(hand):
        if existing_card[0].strip().upper() == card[0].strip().upper() and \
        existing_card[1].strip().capitalize() == card[1].strip().capitalize():
            hand[i] = new_card
            return True


def handle_player_input(hand: Hand, deck: Deck) -> None:
    user_input = input("Enter a card to pull from your hand (e.g., A of Spades): ").strip()
    print("DEBUG - Current hand:", hand)
    # Basic format check
       
    if ' of ' not in user_input:
        print("Invalid input format. Please use Rank of Suit.")
        return

    try:
        rank, suit = user_input.split(' of ', 1)
        rank = rank.strip().upper()
        suit = suit.strip().capitalize()
        card = (rank, suit)
        print("DEBUG - Attempting to remove:", card)
        if not card_in_hand(card, hand):
            print("DEBUG - Normalized input:", card)
            print("DEBUG - Hand contents:", hand)
            print(f"Card '{rank} of {suit}' not found in your hand.")
            return

        if not deck:
            print("No more cards left in the deck to draw.")
            return

        new_card = deal_card(deck)
        success = replace_card_from_hand(hand, card, new_card)

        if success:
            print(f"Replaced {rank} of {suit} with {new_card[0]} of {new_card[1]}.")
        else:
            print("Card replacement failed unexpectedly.")
    except Exception as e:
        print(f"Unexpected error: {e}")

def display_initial_hands(player1: Hand, player2: Hand):
    print("\nPlayer's hands:")
    print("Player 1\n", show_hand(player1))
    print()
    print("Player 2\n", show_hand(player2))
    print()
    
def display_hands(player1: Hand, player2: Hand):
    print("\nPlayer's current hands:")
    print("Player 1's hand:\n", show_hand(player1))
    print()
    print("Player 2's hand:\n", show_hand(player2))
    print()

def main():
    deck = create_deck()
    random.shuffle(deck)
    random.shuffle(deck)
    player1 = deal_hand(deck)
    player2 = deal_hand(deck)
    display_initial_hands(player1, player2)
    print("Player 1's turn to pull a card.")    
    p1_num = int(input("How many cards do you want to pull? (0-3): "))
    if p1_num < 0 or p1_num > 3:
        print("Invalid number of cards. Please choose between 0 and 3.")
        return
    elif p1_num != 0:     
        for _ in range(p1_num):
            handle_player_input(player1, deck)
    else:
        print("Player 1 chose not to pull any cards.")
        display_hands(player1, player2)
        
    print("Player 2's turn to pull a card.")    
    p2_num = int(input("How many cards do you want to pull? (0-3): "))
    if p2_num < 0 or p2_num > 3:
        print("Invalid number of cards. Please choose between 0 and 3.")
        return
    elif p2_num != 0:     
        for _ in range(p2_num):
            handle_player_input(player2, deck)
    else:
        print("Player 2 chose not to pull any cards.")
        display_hands(player1, player2)
    
     # Evaluate hands and determine winner         
    rank1 = hand_rank(player1)
    rank2 = hand_rank(player2)
    if rank1 > rank2:
        print("Player 1 wins! with rank:", rank1)
        print("Player 2 loses with rank:", rank2)
    elif rank2 > rank1:
        print("Player 2 wins! with rank:", rank2)
        print("Player 1 loses with rank:", rank1)
    else:
        print("It's a tie!")
        print("Both players have rank:", rank1)
        

if __name__ == "__main__":
    main()