import random

def user_move() -> int:
    return input("Enter your move (rock, paper, scissors): ")

def random_move() -> str:
    return random.choice(['rock', 'paper', 'scissors',''])

def check_choice_validity(move: str) -> str:
    valid_moves = ['rock', 'paper', 'scissor']
    if move in valid_moves:
        return move
    else:
        return 'Invalid move. Please choose rock, paper, or scissors.'

def check_winner(user_move: str, computer_move: str):
    if user_move == computer_move :
        print("IT'S A TIE!! You're both bad..") #print avant le return
        return 
    elif user_move == "paper" and computer_move == "scissors":
        print("YOU WIN!! You're not bad..")
        return
    elif user_move == "paper" and computer_move == "rock":
        print("YOU LOSE!! You're bad..")
        return
    elif user_move == "rock" and computer_move == "scissors":
        print("YOU WIN!! You're not bad..")
        return
    elif user_move == "rock" and computer_move == "paper":
        print("YOU LOSE!! You're bad..")
        return
    elif user_move == "scissors" and computer_move == "paper":
        print("YOU WIN!! You're not bad..")
        return
    elif user_move == "scissors" and computer_move == "rock":
        print("YOU LOSE!! You're bad..")
        return
    else:
        print("Erm..... Error...?")

if __name__ == '__main__':
    user_choice = ''
    print("Welcome to Rock, Paper, Scissors!!!!!!!!!!")
    user_choice = user_move()
    check_choice_validity(user_choice)
    
    print("Computer is thinking very hard....")
    computer_choice = random_move()

    print(f"Computer chose: {user_choice}")
    check_winner(user_choice, computer_choice)