Customer Loyalty-Rewards Points System for BigCommerce

Customer loyalty-Rewards points system I have a website hosted on BigCommerce, I want to develop a customer loyalty/rewards program that gives customers points/$$$ for each dollar spent. This system/program will collect and send the data through the BigCommerce API see here https://developer.bigcommerce.com/display/API/QuickStart+Guide System/app will be on its own hosting account/server. System will award each customer points or $$$ for each dollar spent. Customer should be able to see their rewards when signed into their account on the store. Customer should be able to choose during checkout whether to use accumulated rewards or save for future use. Admin should be able to set and adjust Points or $ % per Dollar spent. updated via the api or cron every x hours Monthly email reminders to customer showing points/dollar status. Possible addons, these features below can be discussed: Ability to assign extra points to certain products. Ability to give extra points for spending a certain dollar amount, ex: spend $100 and get 10 extra points. Ability to reward biggest customers by giving higher % of points once they reach a certain dollar amount in a year.