Checkout

This is an attempt to modularize an ecommerce checkout into steps.

Setup the checkout object

@checkout = Checkout.new(ShippingStep.new, BillingStep.new, ConfirmationStep.new)

This will add 3 steps to checkout. Put the steps in the correct order. Checkout.new(1st, 2nd, 3rd)

Get the current step.

Call @checkout.current

Get the next or previous step.

Call @checkout.next or @checkout.previous

Complete the current step.

Call @checkout.current.complete