On init, if items in cart, detect date from line items & add as line item variants (make use of key). Consider adding variant line items to things that already exist in the cart so if they come back to that page and add another date, the quantities are seperate.
On init, if items in cart, detect date from line items & add as line item variants (make use of key). Consider adding variant line items to things that already exist in the cart so if they come back to that page and add another date, the quantities are seperate.