“Click to use” cupon

Making an pwa for my restaurant.

I'm looking for a plugin to present users with a cupon they can use by presenting it to their server when paying.

Pressing a "use" button will deactivate the coupon for that account.

Anyone know of a plugin or way to combine functionality to get the same results.

I manage a fairly small but well known restaurant. I'm hoping to get extra business by giving guests loyalty discounts.

All I could find was WooCommerce plugins.