Initial commit

app/services/schedule_pipeline/fetch_schedule.rb

@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+require_relative '../log/loggable'
+require_relative '../vendors/broad_sign/broad_sign_tokens'
+require_relative '../vendors/broad_sign/broad_sign_fetch_schedule'
+require_relative '../vendors/vistar/vistar_tokens'
+require_relative '../vendors/vistar/vistar_fetch_schedule'
+
+module SchedulePipeline
+  class FetchSchedule
+    include Log::Loggable
+
+    def initialize(in_queue, out_queue, errors)
+      @in_queue = in_queue
+      @out_queue = out_queue
+      @errors = errors
+    end
+
+    def start
+      @in_queue.subscribe { |msg| process_msg(msg) }
+    end
+
+    def process_msg(msg)
+      logger.debug("fetch schedule: #{msg}")
+      vendor = msg[:vendor]
+      vendor_fetch = for_vendor(vendor)
+      unless vendor_fetch
+       @errors.push("FetchSchedule: Unknown vendor #{vendor}")
+       return
+      end
+
+      params = msg[:params]
+      fetched = vendor_fetch.call(params)
+      unless fetched
+        @errors.push("FetchSchedule: No ads returned from vendor #{vendor}")
+        return
+      end
+      Models::ScheduleProcessMsg.new(vendor, params[:player], fetched).push(@out_queue) if fetched
+      true
+    rescue StandardError => e
+      @errors.push(e.message)
+    end
+
+  private
+    def for_vendor(vendor)
+      vendor_map[vendor&.to_sym]
+    end
+
+    def vendor_map
+      @vendor_map ||= {
+        broad_sign: Vendors::BroadSign::BroadSignFetchSchedule.new(Vendors::BroadSign::BroadSignTokens.instance),
+        vistar: Vendors::Vistar::VistarFetchSchedule.new(Vendors::Vistar::VistarTokens.instance)
+      }
+    end
+  end
+end