Checkout-sys

Project introduction: http://codekata.com/kata/kata09-back-to-the-checkout/

Work Roadmap

1. Complete the core functions

   • get products by Category
   • get product by SKu
   • add product
   • New order
   • add order item
   • Delete order item
   • Checkout

2. Add Discount feature

   • Add Discount
   • Delete Discount
   • Update Discount
   • PriceAfterDiscount

3. Apply Discount

   • Add totalSaved field in Order
   • "Add order item" function should check if the discount is available for the product
   • "Delete order item" function should check and remove the discount if the product is removed or the quantity is reduced

TODO:

• move process to service layer
  • Add item to order
  • Delete item from order
  • Apply discount
• Add more test cases