Design Pattern: Facade and 1-Click Ordering

checkout_process.rb

class CheckoutProcess
  attr_reader :order
  
  def initialize(order)
    @order = order
  end
  
  def set_shipping_address(address)
    order.shipping_address = address
  end
  
  def set_payment_method(payment_method)
    order.payment_method = payment_method
  end
  
  def review_order
    puts "Order contains: #{order.items}"
    puts "Shipping Address is #{order.shipping_address}"
    puts "Payment Method is #{order.payment_method}"
  end
  
  def place_order
    order.confirm
  end
end