import pandas


# Functions go here
def make_statement(statement, decoration):
    """Emphasises headings by adding decoration at the start and end"""
    print(f"{decoration * 3} {statement} {decoration * 3}")

def number_check(question):
    """Checks that valid integers are the right length"""
    while True:
        try:
            value = input(question).strip()
            if len(value) != 9 or not value.isdigit():
                print("Please enter a valid 9-digit phone number")
            else:
                return value
        except ValueError:
            print("Please enter a valid 9-digit phone number")



def string_check(question, valid_answers=('yes', 'no'), num_letters=1):
    """Checks that users enter the full word or the first n letters"""

    while True:
        response = input(question).lower()

        for item in valid_answers:

            # check if the response is the entire word
            if response == item:
                return item

            # check if it's the first n letters
            elif response == item[:num_letters]:
                return item

        print(f"Please choose an option from {valid_answers}")


def int_check(question):
    """Checks users enter an integer between 1 and 5"""

    error = "please enter a valid integer"

    while True:
        try:
            response = int(input(question))

            if 1 <= response <= 5:
                return response
            else:
                print(error)

        except ValueError:
            print(error)


def instructions():
    make_statement("Instructions", "ℹ️")

    print("""
Welcome to Luigi's Pizza!

1. View the menu.
2. Choose a pizza.
3. Choose how many pizzas you want (1-10).
4. Add more pizzas if you like.
5. See your final order and total.
""")


# Menu data
menu = [
    'cheese',
    'pepperoni',
    'meat-lovers',
    'veggie',
    'white',
    'cheesy garlic',
    'ham and cheese',
    'hawaiian',
    'buffalo chicken',
    'beef and onion'
]

price = [5, 5, 5, 5, 5, 5, 5, 5, 10, 13]

pizza_menu_dict = {
    "Pizza": menu,
    "Price ($)": price
}
order_type = ["delivery", "pickup"]
menu_frame = pandas.DataFrame(pizza_menu_dict)

# Create a dictionary for easy price lookup
price_dict = dict(zip(menu, price))

# Main routine
make_statement("Luigi's Pizza", "🍕")

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

if want_instructions == "yes":
    instructions()

    phone_number = number_check("What is your phone number? ")


delivery_pickup = string_check("Would you like to do delivery or pickup? ", order_type)
if delivery_pickup == "delivery":
    while True:
        address = input("Please enter your address ")

        if address.strip() != "":
            break
        print("Invalid address Please try again.")
    print(f"Your address is {address}")
    print(f"Your phone number is {phone_number}")
if delivery_pickup == "pickup":
    print(f"your phone number is {phone_number} ")
    print("You picked pickup")

print()
read_menu = string_check(
    "Would you like to see the menu? "
)

if read_menu == "yes":
    print()
    print(menu_frame)

# Cart stores all orders
cart = []
total_cost = 0

while True:

    print()
    pizza_choice = string_check(
        "What pizza would you like? ",
        menu
    )
    print("You can only order 1-5 pizza's")
    amount = int_check(
        f"How many {pizza_choice} pizzas would you like? "
    )

    cost = price_dict[pizza_choice] * amount
    total_cost += cost

    cart.append([pizza_choice, amount, cost])

    print(
        f"You ordered {amount} {pizza_choice} pizza(s) "
        f"for ${cost}"
    )

    more_pizza = string_check(
        "Would you like to order another pizza? "
    )

    if more_pizza == "no":
        break

# Print final order
make_statement("Your Order", "🛒")

for pizza, amount, cost in cart:
    print(f"{amount} x {pizza} pizza = ${cost}")

print()
print(f"Total Cost: ${total_cost}")

cancel_order = string_check("Is this your correct order? ")

if cancel_order == "yes":
    make_statement("Thank You For Ordering at Lugi's!", "🍕")