Program Functionality:

The console application operates in two modes: Manager and Customer.

Manager Mode: An authenticated manager can view and edit the caf$$ menu, as well as

toggle Maintenance Mode, which locks or unlocks the kiosk functionality.

Customer Mode: Customers can view the menu, place orders, and choose to proceed

with payment or cancel.

Program High$-$Level:

Home Menu:

a$.$ Display a welcome message

b$.$ Provide "Manager" and "Customer" options, along with an "Exit" application

feature.

N$*2**********$

Welcome to Cafe Kiosk. Start by selecting the option below: A$/$B$/$C

$******$

A$.$ Manager

B$.$ Customer

C$.$ Exit

Enter your choice:

Manager Mode:

a$.$ Authenticate with a username and password from the admin credentials file:

"credentials.txt$".$

b$.$ If authentication fails, return to the "Home Menu" menu.

c$.$ On successful login$,$ present Manager Mode Options:

A$.$ Display all Menu: Show items from "menu.txt$"$ file.

B$.$ Maintenance Mode: Toggle between active and maintenance states.

C$.$ Add Menu Item: Add new dishes to 'menu.txt$,\text{'}$ ensuring that the total

menu items do not exceed $30$ items, as this is the maximum capacity of

the Kiosk. When you store a menu item to the menu.txt file, use the

following format $($separated by semicolon $().$

category;item;price;description

For example: Taco; Burrito; $10\mathrm{.}99$; a tortilla filled with food

D$.$ Go Back: Return to the "Home" menu.