funsholaniyi / checkout-library Goto Github PK

VOUCHER | Voucher | 5.00€ TSHIRT | T-shirt | 20.00€ MUG | Coffee mug | 7.50€

Various departments have suggested some discounts to improve sales:

The marketing department wants a 2-for-1 special on VOUCHER items.

The CFO insists that the best way to increase sales is with (tiny) discounts on bulk purchases. If you buy 3 or more TSHIRT items, the price per unit should be 19.00€.

The checkout process allows for items to be scanned in any order, and calculates the total price. The interface looks like this (in ruby):

checkout = Checkout.new(price_rules)

checkout.scan("VOUCHER")

checkout.scan("VOUCHER")

checkout.scan("TSHIRT")

price = checkout.total

Examples:

Items: VOUCHER, TSHIRT, MUG Total: 32.50€

Items: VOUCHER, TSHIRT, VOUCHER Total: 25.00€

Items: TSHIRT, TSHIRT, TSHIRT, VOUCHER, TSHIRT Total: 81.00€

Items: VOUCHER, TSHIRT, VOUCHER, VOUCHER, MUG, TSHIRT, TSHIRT Total: 74.50€

Example run,

from novicap_checkout.checkout import Checkout

checkout = Checkout('products.json')

print(checkout.scan('VOUCHER', 'TSHIRT', 'MUG'))