PrestaShop 1.7 min purchase for first customer order

[LUZ65]

Hi Guys. Im new with Prestashop and not a good developer. Im trying to migrate my store to Prestashop 1.7 (from another ecommerce) , but I need to do the following:

 

I have a main retail store and a global sales store. The first order of a global sales customer need to have a minumun purchase about 150 usd  and the following orders another minimun purchase about 50 usd.

I can configurate the 50 usd min purchase  in orders configuration, but I supposed I need some additional validation for the 150 usd (applied to a new customer or a customer without previous orders).

 

Someone can help me with that code ? Thanks a lot