import random


secret_word = ['']
user_list = []
number_of_tries = 5
guessed_letters = []
user_tries = 0
user_guess = ''


def select_word():
    global secret_word, user_list
    with open('secret_words.txt', 'r') as f:
        word = f.read()
        word_list = word.split('n')
        secret_word = word_list[random.randint(1, len(word_list))]
        user_list = ['-'] * len(secret_word)


def game_over():
    if user_tries == number_of_tries or user_list == list(secret_word):
        return True
    else:
        return False


def user_input():
    global user_guess
    user_guess = input('Guess a lettern')
    check_guess(user_guess)


def repeated(guess):
    global guessed_letters
    if guess in guessed_letters:
        print('You already guessed that letter!n')
        return True
    else:
        guessed_letters.append(user_guess)
        return False


def check_guess(guess):
    correct_guess = False
    for x in range(len(secret_word)):
        if guess == secret_word[x]:
            user_list[x] = guess
            correct_guess = True
        elif not correct_guess and x == len(secret_word)-1:
            global user_tries
            user_tries += 1
            print('Wrong guess, you lose one tryn'
                  'Remaining tries : {}n'.format(number_of_tries - user_tries))
    if correct_guess:
        print('Correct guess!')


def valid_input(user_letter):
    valid_letters = 'qwertyuiopasdfghjklzxcvbnm'
    if user_letter.lower() in list(valid_letters):
        return True
    else:
        print('Invalid input')
        return False

# main code:


print('----HANG MAN----')
print('*Welcome, guess the wordn*you have 5 tries.')
select_word()

while not game_over():
    for x in user_list:
        print(x, end='')
    user_guess = input('nGuess a letter : ')
    if valid_input(user_guess):
        if repeated(user_guess):
            continue
        else:
            check_guess(user_guess)


if user_list != list(secret_word):
    print('Game over, you died!ncorrect word was {}'.format(secret_word))
else:
    print('Congratulations! you guessed the correct wordn')