# --- Pizza Menu Stored in Code ---
pizza_menu = [
    ["Margherita", 8.50],
    ["Pepperoni", 9.00],
    ["BBQ Chicken", 10.00],
    ["Veggie Delight", 9.00],
    ["Meatlovers", 11.50],
    ["Hawaiian", 9.50],
    ["Cheeseburger", 10.00],
    ["Chicken Cranberry", 11.00],
    ["Beef & Onion", 9.50],
    ["Garlic & Cheese", 8.00]
]

extras_menu = [
    ["Drink", 2.50],
    ["Fries", 3.00],
    ["Extra Cheese", 1.50],
    ["Garlic Sauce", 1.00],
    ["Dipping Box", 3.50]
]


# --- Function to display the pizza menu ---
def display_menu():
    print("\n--- Pizza Menu ---")
    for i, item in enumerate(pizza_menu, 1):
        print(f"{i}. {item[0]} - ${item[1]:.2f}")


def display_extras():
    print("\n--- Optional Extras ---")
    for i, item in enumerate(extras_menu, 1):
        print(f"{i}. {item[0]} - ${item[1]:.2f}")


# --- Function to make sure input is not blank ---
def not_blank(question):
    while True:
        response = input(question).strip()
        if response != "":
            return response
        print("This can't be blank. Try again.")


# --- Function to check string input against a list of valid options ---
def string_check(question, valid_ans_list, num_letters=1):
    while True:
        response = input(question).lower()
        for item in valid_ans_list:
            if response == item or response == item[:num_letters]:
                return item
        print(f"Choose from {valid_ans_list}")


def get_valid_phone():
    while True:
        phone = input("Enter your phone number (NZ): ").strip()
        if phone.isdigit() and 9 <= len(phone) <= 11 and phone.startswith(("02", "03", "04", "06", "07", "09")):
            return phone
        print("Invalid phone number. Try again (must be NZ format).")


def get_valid_address():
    while True:
        address = input("Enter your address: ").strip()

        # Must be at least 3 characters
        if len(address) < 3:
            print("Address is too short.")
            continue

        # Must include at least one number
        if not any(char.isdigit() for char in address):
            print("Address must include a number (e.g. house number).")
            continue

        # Must include at least one letter
        if not any(char.isalpha() for char in address):
            print("Address must include letters (e.g. street name).")
            continue

        return address


def get_order():
    order_list = []
    max_pizzas = 5

    while True:
        try:
            num_pizzas = int(input("How many pizzas would you like to order? (1–5): "))
            if 1 <= num_pizzas <= max_pizzas:
                break
            else:
                print(f"Please enter a number between 1 and {max_pizzas}.")
        except ValueError:
            print("Please enter a valid number.")

    display_menu()  # Just in case they forgot the options

    for i in range(num_pizzas):
        while True:
            try:
                choice = int(input(f"Select pizza #{i + 1} (1–{len(pizza_menu)}): "))
                if 1 <= choice <= len(pizza_menu):
                    selected = pizza_menu[choice - 1]
                    order_list.append(selected)
                    print(f"Added: {selected[0]} - ${selected[1]:.2f}")
                    break
                else:
                    print("That number isn't on the menu.")
            except ValueError:
                print("Please enter a number.")

    return order_list


def get_extras():
    extras_order = []

    want_extras = string_check("Do you want to add extras? (yes/no): ", ["yes", "no"], 1)
    if want_extras == "yes":
        display_extras()

        while True:
            try:
                choice = input("Enter the number of the extra you want (or 'x' to stop): ").strip().lower()

                if choice == "x":
                    break

                choice = int(choice)
                if 1 <= choice <= len(extras_menu):
                    selected = extras_menu[choice - 1]
                    extras_order.append(selected)
                    print(f"Added: {selected[0]} - ${selected[1]:.2f}")
                else:
                    print("Invalid number.")
            except ValueError:
                print("Enter a number or 'x' to stop.")

    return extras_order


# --- Function to get customer details ---
def get_customer_details():
    name = not_blank("Enter your name: ").capitalize() + "."
    phone = get_valid_phone()
    delivery_method = string_check("Pickup or delivery? ", ["pickup", "delivery"], 1)

    address = ""
    if delivery_method == "delivery":
        address = get_valid_address()

    return {
        "name": name,
        "phone": phone,
        "delivery_method": delivery_method,
        "address": address
    }


# --- Main program ---
def main():
    all_items = []  # to hold all ordered items (pizzas + extras)
    total = 0

    show_menu = string_check("Do you want to see the menu? (yes/no): ", ["yes", "no"], 1)
    if show_menu == "yes":
        display_menu()

    want_extras_menu = string_check("Would you like to see the extras menu? (yes/no): ", ["yes", "no"], 1)
    if want_extras_menu == "yes":
        display_extras()

    # --- Get customer details ---
    customer = get_customer_details()

    # --- Get pizza order ---
    order = get_order()
    all_items.extend(order)

    # --- Get extras ---
    extras = get_extras()
    all_items.extend(extras)

    # --- Add delivery fee if needed ---
    if customer["delivery_method"] == "delivery":
        delivery_fee = 3.00
        all_items.append(["Delivery Fee", delivery_fee])

    # --- Build order summary ---
    summary_lines = ["🍕 PIZZA ORDER SUMMARY 🍕\n", f"Customer: {customer['name']}", f"Phone: {customer['phone']}"]
    if customer["delivery_method"] == "delivery":
        summary_lines.append(f"Address: {customer['address']}")
    summary_lines.append(f"Order Type: {customer['delivery_method'].capitalize()}\n")

    summary_lines.append("Items Ordered:")
    for item in all_items:
        summary_lines.append(f"- {item[0]}: ${item[1]:.2f}")
        total += item[1]

    summary_lines.append(f"\nTotal Cost: ${total:.2f}")

    # --- Confirm Order ---
    confirm = string_check("Confirm order? (yes/no): ", ["yes", "no"], 1)
    if confirm == "yes":
        for line in summary_lines:
            print(line)

        # --- Write to file ---
        with open("order_log.txt", "a", encoding="utf-8") as file:
            file.write("\n".join(summary_lines))
            file.write("\n" + "-" * 40 + "\n")
    else:
        print("Order cancelled.")


# Run the program
main()