# Check that users have entered a valid
# option based on a list
def string_checker(question, valid_ans):
    error = f"Please enter a valid option from the following list: {valid_ans}"

    while True:

        # Get user response and make sure it's lowercase
        user_response = input(question).lower()

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

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

        # print error if user does not enter something that is valid
        print(error)
        print()


# Displays instructions
def instruction():
    print('''

📃📃📃Instructions📃📃📃

Pizza Pizza Pizza Pizza
Pizza Pizza Pizza Pizza
Pizza Pizza Pizza Pizza
Pizza Pizza Pizza Pizza
Pizza Pizza Pizza Pizza
Pizza Pizza Pizza Pizza
 ''')

# variables
yes_no = ["yes", "no"]
delivery_options = ["delivery", "pickup"]
menu_items = ["pepperoni", "cheese", "ham & cheese", "vegetarian", "cheesy garlic", "buffalo chicken", "bbq beef & onion", "meatlovers", "hawaiian","garlic prawn","mario special"]


# Heading - starts here
print("🍕🍕Mario's Pizza🍕🍕")
print("Welcome to Mario's Pizza")


# ask user if they want to see the instructions and display them if requested
want_instructions = string_checker("Do you want to read the instructions? ",yes_no)

# checks users enter yes (y) or no (n)
if want_instructions == "yes":
    instruction()

# ask user if they want delivery or pickup
order_type = string_checker("Do you want your pizza to be delivered or do you want to pickup your pizza? ",delivery_options)

if order_type == "delivery":
    print("house address and stuff ")

elif order_type == "pickup":
    print("ok come in __ time")
# ask user if they want to see the menu
ask_menu = string_checker("Would you like to see the menu? ",yes_no)

def menu():
    print('''
    📜📜📜MENU📜📜📜
    1.Pepperoni
    2.Cheese
    3.Ham & Cheese
    4.Cheesy Garlic
    5.Buffalo Chicken
    6.BBQ Beef & Onion
    7.Meatlovers
    8.Hawaiian
    9.Garlic Prawn
    10.Mario Special
     ''')
if ask_menu == "yes":
    menu()

ask_order = string_checker("What Pizzas would you like? ", menu_items)
ask_amount = string_checker("How many would you like?")