Contents

require_relative 'variant/stock_level'
require_relative 'variant/stock_levels_collection'

module Stockman
  module Logic
    class Variant
      attr_reader :id

      def initialize(id)
        @id = id.to_i
      end

      def total_physical_amount
        stock_levels.sum(&:physical_amount)
      end

      def total_allocated_amount
        stock_levels.sum(&:allocated_amount)
      end

      def total_available_amount
        total_physical_amount - total_allocated_amount
      end

      def stock_levels
        @stock_levels ||= StockLevelsCollection.new(id)
      end

      def warehouse_ids
        stock_levels.map(&:warehouse_id)
      end

      def physical_amount(warehouse_id)
        obtain_stock_level_amount(:physical, warehouse_id)
      end

      def allocated_amount(warehouse_id)
        obtain_stock_level_amount(:allocated, warehouse_id)
      end

      def available_amount(warehouse_id)
        obtain_stock_level_amount(:available, warehouse_id)
      end

      def summary
        @summary ||= Summary.from_object(self)
      end

      private

      def obtain_stock_level_amount(type, warehouse_id)
        return 0 unless warehouse_ids.include?(warehouse_id.to_i)

        stock_levels.find_by_warehouse(warehouse_id).send(:"#{type}_amount")
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
stockman-logic-0.1.1	lib/stockman/logic/variant.rb
stockman-logic-0.1.0	lib/stockman/logic/variant.rb