Magento 2 customer loyalty program

Below is a brief summary of the specification, details to be discussed when job start. MangoDollar Introduction A customer loyalty program for customer to gain and use MangoDollar in MangoMall system or T.D.S. offline shop. MangoDollar system provide a RESTFUL API for MangoMall system, it can retrieve and update MangoDollar within MangoMall system. Normally, user could choose to checkout with combination of MangoDollar on hand and real money. With some constraints set in the product attributes, we could limit the usage of MangoDollar when checking out. Attributes per product: MinMangoDollarSpend  The minimum value of MangoDollar spend  Default 0 (not limited) MaxMangoDollarSpend  The maximum value of MangoDollar spend  0 imply not allowed to use MangoDollar for this product  Default not limited, may be set 999999 in database but return the exact price when queried MangoDollarRebate  The rebate value of MangoDollar for purchasing this product MangoDollarRebatePercent  The rebate % value of MangoDollar for purchasing this product  For display only, not used for calculation, to avoid decimal points By setting different values, we could control the minimum or maximum for each product to spend MangoDollar plus real money when checkout.  Solely by real money : MaxMangoDollarSpend = 0  Solely by MangoDollar : MinMangoDollarSpend = the price of the product  Fix amount of MangoDollar (m) and realy money (p) : MinMangoDollarSpend = MaxMangoDollarSpend = m ; price = m + p  Minimal of MangoDollar (m) : MinMangoDollarSpend = m  Maximal of MangoDollar (m) : MaxMangoDollarSpend = m Display  Provide helper class for retrieval of the related attributes to be show in product grids, check out page  Provide helper class for showing overall rebates in checkout page  Show Balance, transaction history and expiry dates Rules to earn MangoDollar Behaviour rules to add MangoDollar e.g. Register, login, birthday, share multi-media, product review, etc. MangoDollar adjustment using admin page Admin page to adjust MangoDollar of user, only priority user could access this menu M18 Order (ERP) Record MangoDollar value used for the order. Record MinMangoDollarSpend per product MangoDollar APIs (curl)  [login to view URL]  [login to view URL]  [login to view URL]  [login to view URL]  [login to view URL]  [login to view URL]  [login to view URL]  [login to view URL]