Move decrypt function updating into job class

src/invidious.cr

@@ -168,19 +168,14 @@ if config.statistics_enabled
 end
 
 Invidious::Jobs.register Invidious::Jobs::PullPopularVideosJob.new(PG_DB)
+Invidious::Jobs.register Invidious::Jobs::UpdateDecryptFunctionJob.new
 Invidious::Jobs.start_all
 
 def popular_videos
   Invidious::Jobs::PullPopularVideosJob::POPULAR_VIDEOS.get
 end
 
-DECRYPT_FUNCTION = [] of {SigProc, Int32}
+DECRYPT_FUNCTION = Invidious::Jobs::UpdateDecryptFunctionJob::DECRYPT_FUNCTION
-spawn do
-  update_decrypt_function do |function|
-    DECRYPT_FUNCTION.clear
-    function.each { |i| DECRYPT_FUNCTION << i }
-  end
-end
 
 if CONFIG.captcha_key
   spawn do

src/invidious/helpers/jobs.cr

@@ -65,21 +65,6 @@ def pull_popular_videos(db)
   end
 end
 
-def update_decrypt_function
-  loop do
-    begin
-      decrypt_function = fetch_decrypt_function
-      yield decrypt_function
-    rescue ex
-      # TODO: Log error
-      next
-    ensure
-      sleep 1.minute
-      Fiber.yield
-    end
-  end
-end
-
 def bypass_captcha(captcha_key, logger)
   loop do
     begin

src/invidious/jobs/update_decrypt_function_job.cr

@@ -0,0 +1,19 @@
+class Invidious::Jobs::UpdateDecryptFunctionJob < Invidious::Jobs::BaseJob
+  DECRYPT_FUNCTION = [] of {SigProc, Int32}
+
+  def begin
+    loop do
+      begin
+        decrypt_function = fetch_decrypt_function
+        DECRYPT_FUNCTION.clear
+        decrypt_function.each { |df| DECRYPT_FUNCTION << df }
+      rescue ex
+        # TODO: Log error
+        next
+      ensure
+        sleep 1.minute
+        Fiber.yield
+      end
+    end
+  end
+end