Contents

module Shopper
  class CheckoutManager
    def initialize(order)
      @order = order
    end

    # if we on confirm stage and editing previous - all submitting will redirect to :confirm
    def next_step
      return :confirm if minimal_accessible_step == :confirm
      steps.at(minimal_accessible_step_index + 1)
    end

    def can_access?(step)
      current_step_index = steps_with_completeness.find_index { |key, _| key == step }
      current_step_index <= minimal_accessible_step_index
    end

    def minimal_accessible_step
      steps_with_completeness.keys[minimal_accessible_step_index]
    end

    private

    def minimal_accessible_step_index
      @minimal_accessible_step_index ||=
        steps_with_completeness.find_index { |_, value| !value }
    end

    def steps
      steps_with_completeness.keys
    end

    def steps_with_completeness
      @steps_with_completeness ||= {
        address:  has_addresses?,
        delivery: has_delivery?,
        payment:  has_payment?,
        confirm:  false
      }
    end

    def has_addresses?
      shipping = @order.use_billing ? true : @order.shipping_address
      @order.billing_address && shipping
    end

    def has_delivery?
      @order.delivery
    end

    def has_payment?
      @order.credit_card
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
shoppper-0.1.0	app/services/shopper/checkout_manager.rb