Add prometheus metrics

internal/controller/worker/worker.go

@@ -3,8 +3,10 @@ package worker
 import (
 	"context"
 	"log"
+	"strconv"
 	"time"
 
+	"git.vakhrushev.me/av/transcriber/internal/metrics"
 	"git.vakhrushev.me/av/transcriber/internal/service"
 )
 
@@ -39,6 +41,7 @@ func (w *ConversionWorker) Start(ctx context.Context) {
 			return
 		default:
 			err := w.transcribeService.FindAndRunConversionJob()
+			metrics.WorkerJobCounter.WithLabelValues(w.Name(), strconv.FormatBool(err != nil)).Inc()
 			if err != nil {
 				log.Printf("%s error: %v", w.Name(), err)
 			}
@@ -80,6 +83,7 @@ func (w *TranscribeWorker) Start(ctx context.Context) {
 			return
 		default:
 			err := w.transcribeService.FindAndRunTranscribeJob()
+			metrics.WorkerJobCounter.WithLabelValues(w.Name(), strconv.FormatBool(err != nil)).Inc()
 			if err != nil {
 				log.Printf("%s error: %v", w.Name(), err)
 			}
@@ -121,6 +125,7 @@ func (w *CheckWorker) Start(ctx context.Context) {
 			return
 		default:
 			err := w.transcribeService.FindAndRunTranscribeCheckJob()
+			metrics.WorkerJobCounter.WithLabelValues(w.Name(), strconv.FormatBool(err != nil)).Inc()
 			if err != nil {
 				log.Printf("%s error: %v", w.Name(), err)
 			}