Class: Item::CycleCountPrioritizer

Inherits:
BaseService show all
Defined in:
app/services/item/cycle_count_prioritizer.rb

Overview

Service object: cycle count prioritizer.

Instance Attribute Summary

Attributes inherited from BaseService

#options

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from BaseService

#log_debug, #log_error, #log_info, #log_warning, #logger, #tagged_logger

Constructor Details

#initialize(options = {}) ⇒ CycleCountPrioritizer

aim to count every item once per 3 months minimum
count item if drops below item.qty_warn_on_stock and last count more than 4 weeks ago
items with unit_cogs > $200 counted every 2 weeks (46 as of 2/6/18)
never count fixing strip, circuit check, warning label, face plate, brochure, catalog, poster, sample (too many to count)
don't count anything with 0 in stock
count items due to arrive soon more often



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# File 'app/services/item/cycle_count_prioritizer.rb', line 12

def initialize(options = {})
  @options = options
  @logger = options[:logger] || Rails.logger
end

Class Method Details

.calculate_store_item_priority(si) ⇒ Object 



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# File 'app/services/item/cycle_count_prioritizer.rb', line 31

def self.calculate_store_item_priority(si)
  priority = 0
  return 0 if /fixing.*strip|circuit.*check|warning.*label|face.*plate|brochure|catalog|poster|sample/i.match?(si.item.name)
  return 0 if si.qty_on_hand.zero?

  # start with 10 so they'll always beat the 0s
  priority += 10
  # +30 if it's in a catalog (or part of a kit in any catalogs)
  active_kit_parent_count = 0
  si.item.kit_parents.each do |k|
    active_kit_parent_count += 1 if CatalogItem.where(state: %w[active active_hidden]).joins(:store_item).where(store_items: { item_id: k.id, location: 'AVAILABLE', store_id: si.store_id }).present?
  end
  # Each active kit parent counts for 10
  priority += 10 * active_kit_parent_count

  priority += 30 if si.catalog_items.main_catalogs.public_catalog_items.any? || si.item.kit_parents.any? do |k|
                      k.catalog_items.main_catalogs.public_catalog_items.joins(:store_item).where(store_items: { store_id: si.store_id }).any?
                    end
  # evaluate how long since last counted
  last_counted = si.last_cycle_count.try(:date_processed)
  if last_counted.nil?
    # +500 if never counted
    priority += 500
  else
    months_since_last_counted = ((Date.current.year * 12) + Date.current.month) - ((last_counted.year * 12) + last_counted.month)
    # + 10 for each months that passed since the last count
    priority += months_since_last_counted * 10
  end
  # +20 if below warning level and last count more than 4 weeks ago
  priority += 20 if si.item.qty_warn_on_stock && (si.qty_on_hand <= si.item.qty_warn_on_stock) && (last_counted.nil? || (last_counted < 4.weeks.ago))
  # +30 if more due to arrive in a shipment in next week and last count more than 2 weeks ago
  priority += 30 if si.on_order.any? do |details|
                      details[:promised_delivery_date] && (details[:promised_delivery_date] >= Date.current) && (details[:promised_delivery_date] <= Date.current + 7)
                    end && (last_counted.nil? || (last_counted < 2.weeks.ago))

  # Active/Public in any catalog ? get a boost
  priority += 20 if si.catalog_items.where(state: 'active').present?

  # Actvive or Active/Hidden in main catalog? get a boost (So active + main catalog essentially get a double boost because of the previous line)
  priority += 20 if si.catalog_items.main_catalogs.where(state: %w[active active_hidden]).present?

  # Manually flagged for cycle counting?
  priority += 100 if si.add_to_next_cycle_count?

  priority
end

Instance Method Details

#potential_store_items ⇒ Object 



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# File 'app/services/item/cycle_count_prioritizer.rb', line 78

def potential_store_items
  StoreItem.joins(item: :product_category).includes(:item)
           .merge(ProductCategory.non_publications)
           .where(location: 'AVAILABLE', is_discontinued: false,
                  items: { is_discontinued: false, is_kit: false })
end

#process ⇒ Object 



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# File 'app/services/item/cycle_count_prioritizer.rb', line 17

def process
  # set everything to 0 initially
  res = {}
  StoreItem.transaction do
    StoreItem.update_all(cycle_count_priority: 0)
    potential_store_items.each do |si|
      priority = self.class.calculate_store_item_priority(si)
      si.update_attribute!(:cycle_count_priority, priority) if priority > 0
      res[si.id] = priority
    end
  end
  res
end