feat: media duplicate purge, part 2 of 3: the automatic purge scheduler (Go only)

cmd/server/main.go

@@ -81,7 +81,7 @@ func run() error {
 	validator.InitValidator()
 
 	server := newServer(api.InitRoutes(container, settings), settings)
-	return serveUntilStopped(server, settings, container.RecordRunningInfoUseCase.Record)
+	return serveUntilStopped(server, settings, container.RecordRunningInfoUseCase.Record, container.PurgeScheduler.Run)
 }
 
 func initEnvVariables() {
@@ -132,9 +132,18 @@ func newServer(handler http.Handler, settings config.Settings) *http.Server {
 	}
 }
 
-func serveUntilStopped(server *http.Server, settings config.Settings, recordRunning func() error) error {
+func serveUntilStopped(server *http.Server, settings config.Settings, recordRunning func() error, runScheduler func(context.Context)) error {
 	stopSignal, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
-	defer stop()
+
+	schedulerDone := make(chan struct{})
+	go func() {
+		defer close(schedulerDone)
+		runScheduler(stopSignal)
+	}()
+	defer func() {
+		stop()
+		<-schedulerDone
+	}()
 
 	serverErr := make(chan error, 1)
 	go listen(server, serverErr, settings, recordRunning)