Initial commit

app/services/schedule_pipeline/process_schedule.rb

@@ -0,0 +1,85 @@
+# frozen_string_literal: true
+
+require_relative '../log/loggable'
+require_relative '../vle/vle_settings'
+require_relative '../vle/vle_create_asset'
+require_relative '../vle/vle_ingest_asset'
+require_relative '../vendors/broad_sign/broad_sign_transform_schedule'
+require_relative '../vendors/vistar/vistar_transform_schedule'
+require_relative '../auth/auth_token_service'
+require 'auth/client/request/auth_aware_request'
+
+module SchedulePipeline
+  class ProcessSchedule
+    include Log::Loggable
+
+    def initialize(in_queue, out_queue, errors, tokens = Auth::AuthTokenService.instance)
+      @in_queue = in_queue
+      @out_queue = out_queue
+      @errors = errors
+      @tokens = tokens
+    end
+
+    def start
+      @in_queue.subscribe do |msg|
+        msg = Models::ScheduleProcessMsg.from_hash(msg) if msg.is_a? Hash
+        process_msg(msg)
+      end
+    end
+
+    def process_msg(msg)
+      logger.info("Process Schedule")
+
+      vendor = msg.vendor
+      schedule_transform = for_vendor(vendor)
+      unless schedule_transform
+        @errors.push("ProcessSchedule: Unknown vendor #{vendor}")
+        return
+      end
+
+      content_map = []
+      msg.vendor_schedule[:contents].each do |content|
+        # TODO: optimization: first check whether the content has already been ingested into VLE
+        vle_asset = create_asset(content)[:asset]
+        content_map << vle_asset
+        ingest_content(content, vle_asset[:meta][:presigned_url])
+      end
+
+      schedule = schedule_transform.call(vendor, msg.player, msg.vendor_schedule, content_map)
+      @out_queue.push(schedule)
+      true
+    rescue StandardError => e
+      @errors.push(e.message)
+    end
+
+  private
+    def create_asset(content)
+      sanitized_name = content[:name].gsub(/\s+/, '_')
+      Auth::Client::Request::AuthAwareRequest.new(
+        Vle::VleCreateAsset.new(
+          {
+            name: sanitized_name,
+            file: sanitized_name,
+            project_id: Vle::VleSettings.instance.target_project
+          }
+        ),
+        @tokens
+      ).call
+    end
+
+    def ingest_content(content, destination)
+      Vle::VleIngestAsset.new.call(content, destination)
+    end
+
+    def for_vendor(vendor)
+      vendor_map[vendor&.to_sym]
+    end
+
+    def vendor_map
+      @vendor_map ||= {
+        broad_sign: Vendors::BroadSign::BroadSignTransformSchedule.new,
+        vistar: Vendors::Vistar::VistarTransformSchedule.new
+      }
+    end
+  end
+end