Create new Wordpress plugin, or expand WooCommerce Smart Coupons functionality

Hello, I have a Wordpress + WooCommerce + Profile Bulider + Mailchimp site at: [login to view URL] At present, new users can register at: [login to view URL] using Profile Builder Hobbyst version plugin form ( [login to view URL] ). The plugin Profile Builder handle the registration, connect to Mailchimp, and add user to Mailchimp List, using Profile Builder Mailchimp Add - on. Now I am going to describe, what I would like to accomplish. At the registration moment, I want to generate 3 WooCommerce coupons, unique for every user, and somehow link them with the user (maybe in the user_meta?): WooCommerce Coupon Number 1 settings should be: Discount type: Cart % Disount Coupon amount: 25 (that means 25% with this discount type) Coupon expiry date: 1st day after generation Invidual use only WooCommerce Coupon Number 2 settings should be: Discount type: Product Discount Coupon amount: 40 Coupon expiry date: 8th day after generation Invidual use only This coupon should be limited to only one of my products ( [login to view URL] ) WooCommerce Coupon Number 3 settings should be: Discount type: Product Discount Coupon amount: 70 Coupon expiry date: 31st day after generation Invidual use only This coupon should be limited to only one of my products ( other then Number 2 ) Other settings should stay default. I want those coupons be generated ONLY for users, which register using Profile Builder form, described above, not for the users, who register other way (during checkout process, for example). After generating those three coupons, I want them: 1. To be passed to my Mailchimp List, as Mailchimp Field 1, Mailchimp Field 2, Mailchimp Field 3. 2. To be able to being visible for the specific user using custom shortcodes. Shortcode should be executed only if the user is logged in, and some of his coupons are not expired. Executing shortcode should show the user some nice, green box, similar to the boxes in WooCommerce Smart Coupons. ------------------------------------------------------------------------------------- I have WooCommerce Smart Coupon plugin. If you would be able to use and modify this plugin that would be great, because it has many more interesting functionalities. If not, I guess you should create custom plugin for that. IMPORTANT NOTICE I can give you access only to my test site: [login to view URL] , which is simply the clone of the original site, and test Mailchimp account. You would have to work, and implement Your solution there. After that, I will implement Your code, by myself, on my original site. That’s my condition, sorry.