How to organize the sale of unique products on wordpress?

Question

Electronic commerce

Good day to all!
I am asking for help in implementing sales of digital goods on WordPress.
I will describe the mechanics:
A) From the client side:
1. The client registers, selects a product and presses the "buy" button.
2. Without any addition to the cart, it goes to the product card, where there is also a "buy" button.
3. After clicking on the second button, the user is directed to the payment system, for example, free-kassa, where he pays for the goods.
4. After payment, he receives a download link by e-mail, and sends him back to the personal account, where the product itself also appears, pre-loaded on the hosting and remains there all the time (a link to this particular product is sent to the mail).
B) From the site:
1. 1 product is created with a description and several .txt files, after confirming the payment and issuing the file to the user's personal account, the file becomes unavailable for purchase and is removed from the product, but remains on the server so that the client can download it from the personal account.
2. The place of the first file, without any changes in the description, prices, etc., is occupied by the second file.
3. And so on in a circle until the files in the product run out, after which the product will be unavailable for purchase and will become available only after downloading other files.
It is very important that the files are not duplicated, because the information in them is unique and should not be provided to another user.
I made a template on WP, now I’m familiar with WooCommerce and there are digital products there, but I can’t figure out how to implement a system for deleting files from the main product and, in principle, uploading several files to one product and then deleting the already purchased one.
I would be very grateful if someone who has already encountered this issue will give advice. Perhaps there is some extra. plugin for woocommerce to implement such a task. Or, what the hell is not joking, instructions for editing the plugin for a roughly similar task.
Notifications, download links, etc. are not that important. Or vice versa, let the client receive a link to the mail, but nothing is displayed in the personal account.
The very essence, which I can’t figure out, is precisely the loading of several files into the product card and the deletion of each after the purchase and substitution of the next one in turn. Perhaps not a file, but let's say a unique link to download a file from a hosting. The most important thing is that there would be exactly unique information for everyone, a link or a text document, it does not matter.
Thanks in advance for advice or at least a direction where to look for an answer to my question.

Answer 1

no matter how sad it is to say, but with such a question you can only get a link to https://freelansim.ru