Integrate the Tinkoff payment system into a Laravel-based CMS

It is necessary to write a plug-in of the payment system (with the function of splitting payments) Tinkoff for the marketplace.
The site is made on Botble CMS based on Laravel.
Implement a secure transaction through the Tinkoff payment system.

Requirements:
Integration with Tinkoff API for processing online payments with secure transaction and payment splitting.
Ability to add a Tinkoff payment button to the order and checkout pages.
Implementation of payment statuses: successful, unsuccessful, pending.
Notifications about the status of payment to the client and administrator.
Possibility of a refund in case of cancellation of the order or return of the goods.
Possibility to register a merchant through the admin panel of the site
I will be glad to see your suggestions on this issue.