How can I write…?

Hello great plugin!

Wanted to know how can I write

if Pickup/Delivery service is disabled then default to current date and time and print that removing the need for customers to set date and or time.

if enabled and no date or time was selected then default to current date and time.

Have the option for admin or resturant to choose if they want to allow customers to select a date and time.

if services is enable but show service type is not in admin options, default to current date and time with out customer needing to do so,

Also how would I use the pickup/delivery service for special/certain times or events, Like — Lunch Special, from 11 to 3 but still keep standard or regular operations going was well, as “if even though its lunch time and they are serving lunch the customer still ordered from regular menu”

Or delivery services are only available from 3 to 7:30 – if enabled and customer select delivery change shipping from local pick up to delivery on checkout and require street address and check to see if it’s within delivery locations,

if pickup is selected there’s no need for street address if company don’t need just ask customer for name phone email , company optional, coupon, returning customer, order notes, payment type, terms, order

How can some of this be done immediately? More importantly several site owners doesn’t want customers to select a date and time,

Thanks