Shopping Cart

"""
Author: Anton Sanakoev
Project: Shopping Cart

Showing Creativity and Exceeding Requirements
Line 13: Actions string is generated dynamically based on an object of actions
Line 21: Menu formatting is enhanced for readability
Line 47: Printing '-empty-' when the cart is empty
"""

print('Welcome to the Shopping Cart Program!')

actions = {
    1: 'Add item',
    2: 'View cart',
    3: 'Remove item',
    4: 'Compute total',
    5: 'Quit',
}

menu = '\n-[Please select one of the following]-'
for action in actions.items():
    menu += f'\n[{action[0]}] {action[1]}'

item_names = []
item_prices = []
currency = '$'

while True:
    print(menu)

    choice = int(input('\nPlease enter an action: '))

    match choice:
        case 1:
            item_name = str(input('\nWhat item would you like to add? ')).capitalize()
            item_names.append(item_name)

            item_price = round(float(input(f"What is the price of '{item_name}'? ")), 2)
            item_prices.append(item_price)

            print(f"'{item_name}' has been added to the cart.")
        case 2:
            print('\nThe contents of the shopping cart are:')

            if len(item_names) == 0:
                print('-empty-')
            else:
                for item_position, item_name in enumerate(item_names):
                    print(f'{item_position + 1}. {item_name} - {currency}{item_prices[item_position]:.2f}')
        case 3:
            remove_item_position = int(input('\nWhich item would you like to remove? ')) - 1

            if 0 <= remove_item_position < len(item_names):
                item_names.pop(remove_item_position)
                item_prices.pop(remove_item_position)

                print('Item removed.')
            else:
                print('Sorry, that is not a valid item number.')
        case 4:
            print(f'\nThe total price of the items in the shopping cart is {sum(item_prices):.2f}')
        case 5:
            break
        case _:
            print('\nSorry, that is not a valid action')

print('\nThank you. Goodbye.')