pizza.py

def char_to_size(size_char):
    if size_char == 's': return 'small'
    if size_char == 'm': return 'medium'
    if size_char == 'l': return 'large'


def error_message(): print("Please enter a valid choice.")


pizza_toppings = [
    "pepperoni",
    "chicken",
    "extra cheese",
    "mushrooms",
    "spinach",
    "olives"
]

total_ordered_pizzas = 0
total_topping_count = 0
pizza_topping_counts = [0] * 6
day_over = False

while not day_over:
    pizza_confirmed = False
    topping_list = ["tomato", "cheese"]
    current_topping_counts = [0 for i in range(6)]

    while True:
        pizza_size_char = input("Enter pizza size (s/m/l): ").lower()
        if pizza_size_char in ["s", "m", "l"]:
            break
        error_message()
    pizza_size = char_to_size(pizza_size_char)

    while True:
        pizza_base_option = input("Would you like a thin base over a thick base? (Y/N): ").upper()
        if pizza_base_option == "Y" or pizza_base_option == "N":
            break
        error_message()
    pizza_base = "thin base" if pizza_base_option == "Y" else "thick base"

    print("You have tomato and cheese toppings by default on your pizza.")
    topping_choice_number = 0
    while True:
        if len(topping_list) == 5: break
        any_more_toppings = input("Would you like any more toppings? (Y/N): ").upper() == "Y"
        if not any_more_toppings:
            break
        while True:
            [print(i + 1, pizza_toppings[i]) for i in range(len(pizza_toppings))]
            topping_choice_number = int(input("Enter a number from 1-6 to choose a topping: "))
            if 1 <= topping_choice_number <= 6:
                topping_index = topping_choice_number - 1
                if pizza_toppings[topping_index] not in topping_list:
                    topping_list.append(pizza_toppings[topping_index])
                    current_topping_counts[topping_index] = 1
                    break
            error_message()

    print("Your order is a {0} pizza with a {1}".format(pizza_size, pizza_base))
    print("Your toppings are " + ", ".join(topping_list))

    pizza_confirmed = input('Enter "confirm" to confirm your order: ').lower() == "confirm"
    if pizza_confirmed:
        for i, current_topping_count in enumerate(current_topping_counts):
            pizza_topping_counts[i] += current_topping_count
            total_topping_count += current_topping_count
        total_ordered_pizzas += 1
        print("Your order number is: " + f"{total_ordered_pizzas:04d}")
    else:
        print("Order cancelled.")
    day_over = input('Enter "end" to end the day: ').lower() == "end"

if total_topping_count == 0:
    print("No additional toppings ordered today.")
else:
    min_topping_count, max_topping_count = 2 ** 31 - 1, -2 ** 31 + 1

    for i in range(len(pizza_topping_counts)):
        if pizza_topping_counts[i] > max_topping_count:
            max_topping_count = pizza_topping_counts[i]
            popular_topping_index = i

        if pizza_topping_counts[i] < min_topping_count:
            min_topping_count = pizza_topping_counts[i]
            unpopular_topping_index = i

    popular_topping = pizza_toppings[popular_topping_index]
    popular_topping_percent = str(round(max_topping_count / total_topping_count * 100, 2)) + "%"

    unpopular_topping = pizza_toppings[unpopular_topping_index]
    unpopular_topping_percent = str(round(min_topping_count / total_topping_count * 100, 2)) + "%"

    print(" - ".join(["Most popular topping",
                      popular_topping,
                      popular_topping_percent]))

    print(" - ".join(["Least popular topping",
                      unpopular_topping,
                      unpopular_topping_percent]))

print("Total Ordered Pizzas:", total_ordered_pizzas)