# Check that users have entered a valid
# option based on a list
from Excess.C_04_One_Round_v1 import user_two


def string_checker(question, valid_ans=('yes', 'no')):

    error = f"please enter a valid option from the following list: {valid_ans}"

    while True:
        # get the user response and make sure its lowercase
        user_response = input(question).lower()

        for item in valid_ans:
            # check if a user response is a word in the list
            if item == user_response:
                return item

            # check if the user response is the same as
            # the first letter of an item in the list
            elif user_response == item[0]:
                return item

        # print error if user enters something invalid
        print(error)
        print()

# Main routine goes here
rps_list = ["rock", "paper", "scissors", "xxx"]

want_instructions = string_checker("Do you want to see the instructions? ")

print("You chose: ", want_instructions)

user_choice = string_checker("Choose: ", rps_list)
print("you chose: ", user_choice)