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Contents
module Workarea
module Pricing
class Discount
# Responsible for calcuating a how many applicaitons a given
# set of items should recieve a {QuantityFixedPrice}.
# Limits at max application is set.
#
class QuantityFixedPrice::ApplicationCalculator
delegate :product_ids, :category_ids, :max_applications, :quantity,
to: :@discount
def initialize(discount, items)
@discount = discount
@items = items
end
# The number of applications these items can recieve.
#
# @return [Integer]
#
def applications
if max_applications.present? &&
potential_applications > max_applications
max_applications
else
potential_applications
end
end
private
def potential_applications
@potential_applications ||=
begin
result = 0
current_quantity = 0
@items.each do |item|
next unless item.matches_products?(product_ids) || item.matches_categories?(category_ids)
item.quantity.times do
current_quantity += 1
if current_quantity == quantity
result += 1
current_quantity = 0
end
end
end
result
end
end
end
end
end
end
Version data entries
62 entries across 62 versions & 1 rubygems