Files
openfoodnetwork/app/services/fdc_backorderer.rb
2024-09-25 10:55:39 +10:00

111 lines
3.7 KiB
Ruby

# frozen_string_literal: true
# Place and update orders based on missing stock.
class FdcBackorderer
FDC_BASE_URL = "https://env-0105831.jcloud-ver-jpe.ik-server.com/api/dfc/Enterprises/test-hodmedod"
FDC_ORDERS_URL = "#{FDC_BASE_URL}/Orders".freeze
FDC_NEW_ORDER_URL = "#{FDC_ORDERS_URL}/#".freeze
FDC_SALE_SESSION_URL = "#{FDC_BASE_URL}/SalesSession/#".freeze
def find_or_build_order(ofn_order)
remote_order = find_open_order(ofn_order.distributor.owner)
remote_order || OrderBuilder.new_order(ofn_order, FDC_NEW_ORDER_URL)
end
def find_open_order(user)
graph = import(user, FDC_ORDERS_URL)
open_orders = graph&.select do |o|
o.semanticType == "dfc-b:Order" && o.orderStatus[:path] == "Held"
end
return if open_orders.blank?
# If there are multiple open orders, we don't know which one to choose.
# We want the order we placed for the same distributor in the same order
# cycle before. So here are some assumptions for this to work:
#
# * We see only orders for our distributor. The endpoint URL contains the
# the distributor name and is currently hardcoded.
# * There's only one open order cycle at a time. Otherwise we may select
# an order of an old order cycle.
# * Orders are finalised when the order cycle closes. So _Held_ orders
# always belong to an open order cycle.
# * We see only our own orders. This assumption is wrong. The Shopify
# integration places held orders as well and they are visible to us.
#
# Unfortunately, the endpoint doesn't tell who placed the order.
# TODO: We need to remember the link to the order locally.
# Or the API is updated to include the orderer.
#
# For now, we just guess:
open_orders.last.tap do |order|
# The DFC Connector doesn't recognise status values properly yet.
# So we are overriding the value with something that can be exported.
order.orderStatus = "dfc-v:Held"
end
end
def find_or_build_order_line(order, offer)
find_order_line(order, offer) || build_order_line(order, offer)
end
def build_order_line(order, offer)
# Order lines are enumerated in the FDC API and we must assign a unique
# semantic id. We need to look at current ids to avoid collisions.
# existing_ids = order.lines.map do |line|
# line.semanticId.match(/[0-9]+$/).to_s.to_i
# end
# next_id = existing_ids.max.to_i + 1
# Suggested by FDC team:
next_id = order.lines.count + 1
OrderLineBuilder.build(offer, 0).tap do |line|
line.semanticId = "#{order.semanticId}/OrderLines/#{next_id}"
order.lines << line
end
end
def find_order_line(order, offer)
order.lines.find do |line|
line.offer.offeredItem.semanticId == offer.offeredItem.semanticId
end
end
def import(user, url)
api = DfcRequest.new(user)
json = api.call(url)
DfcIo.import(json)
end
def send_order(ofn_order, backorder)
lines = backorder.lines
offers = lines.map(&:offer)
products = offers.map(&:offeredItem)
api = DfcRequest.new(ofn_order.distributor.owner)
if backorder.semanticId == FDC_NEW_ORDER_URL
# Create order via POST:
session = build_sale_session(ofn_order)
json = DfcIo.export(backorder, *lines, *offers, *products, session)
api.call(FDC_ORDERS_URL, json)
else
# Update existing:
json = DfcIo.export(backorder, *lines, *offers, *products)
api.call(backorder.semanticId, json, method: :put)
end
end
def complete_order(ofn_order, backorder)
backorder.orderStatus = "dfc-v:Complete"
send_order(ofn_order, backorder)
end
def build_sale_session(order)
SaleSessionBuilder.build(order.order_cycle).tap do |session|
session.semanticId = FDC_SALE_SESSION_URL
end
end
end