remove duplicated metrics config

main.go

@@ -322,55 +322,77 @@ func loggerFromFlags(cmd *cli.Command) *slog.Logger {
 func newMetrics() *metrics.Metrics {
 	return &metrics.Metrics{
 		TMIMsgsCount: metrics.NewPromCounter(
-			prometheus.NewCounter(prometheus.CounterOpts{
-				Namespace: "robot",
-				Subsystem: "tmi",
-				Name:      "messages",
-				Help:      "Number of PRIVMSGs received from TMI.",
-			}),
+			prometheus.NewCounter(
+				prometheus.CounterOpts{
+					Namespace: "robot",
+					Subsystem: "tmi",
+					Name:      "messages",
+					Help:      "Number of PRIVMSGs received from TMI.",
+				},
+			),
 		),
 		TMICommandCount: metrics.NewPromCounter(
-			prometheus.NewCounter(prometheus.CounterOpts{
-				Namespace: "robot",
-				Subsystem: "tmi",
-				Name:      "commands",
-				Help:      "Number of command invocations received in Twitch chat.",
-			}),
+			prometheus.NewCounter(
+				prometheus.CounterOpts{
+					Namespace: "robot",
+					Subsystem: "tmi",
+					Name:      "commands",
+					Help:      "Number of command invocations received in Twitch chat.",
+				},
+			),
 		),
 		LearnedCount: metrics.NewPromCounter(
-			prometheus.NewCounter(prometheus.CounterOpts{
-				Namespace: "robot",
-				Subsystem: "brain",
-				Name:      "learned",
-				Help:      "Number of messages learned.",
-			}),
+			prometheus.NewCounter(
+				prometheus.CounterOpts{
+					Namespace: "robot",
+					Subsystem: "brain",
+					Name:      "learned",
+					Help:      "Number of messages learned.",
+				},
+			),
 		),
 		ForgotCount: metrics.NewPromCounter(
-			prometheus.NewCounter(prometheus.CounterOpts{
-				Namespace: "robot",
-				Subsystem: "brain",
-				Name:      "forgot",
-				Help:      "Number of individual messages deleted. Does not include messages deleted by user or time.",
-			}),
+			prometheus.NewCounter(
+				prometheus.CounterOpts{
+					Namespace: "robot",
+					Subsystem: "brain",
+					Name:      "forgot",
+					Help:      "Number of individual messages deleted. Does not include messages deleted by user or time.",
+				},
+			),
 		),
 		SpeakLatency: metrics.NewPromObserverVec(
-			prometheus.NewHistogramVec(prometheus.HistogramOpts{
-				Buckets:   []float64{0.01, 0.05, 0.1, 0.2, 0.5, 1, 5, 10},
-				Namespace: "robot",
-				Subsystem: "commands",
-				Name:      "speak-latency",
-				Help:      "How long it takes for robot to speak once prompted in seconds",
-			}, []string{"channel", "empty-prompt"},
+			prometheus.NewHistogramVec(
+				prometheus.HistogramOpts{
+					Buckets:   []float64{0.01, 0.05, 0.1, 0.2, 0.5, 1, 5, 10},
+					Namespace: "robot",
+					Subsystem: "commands",
+					Name:      "speak-latency",
+					Help:      "How long it takes for robot to speak once prompted in seconds",
+				},
+				[]string{"channel", "empty-prompt"},
 			),
 		),
 		LearnLatency: metrics.NewPromObserverVec(
-			prometheus.NewHistogramVec(prometheus.HistogramOpts{
-				Buckets:   []float64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
-				Namespace: "robot",
-				Subsystem: "brain",
-				Name:      "learn-latency",
-				Help:      "How long it takes robot to learn a non discarded message in seconds",
-			}, []string{"channel"},
+			prometheus.NewHistogramVec(
+				prometheus.HistogramOpts{
+					Buckets:   []float64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
+					Namespace: "robot",
+					Subsystem: "brain",
+					Name:      "learn-latency",
+					Help:      "How long it takes robot to learn a non discarded message in seconds",
+				},
+				[]string{"channel"},
+			),
+		),
+		UsedMessagesForGeneration: metrics.NewPromHistogram(
+			prometheus.NewHistogram(
+				prometheus.HistogramOpts{
+					Namespace: "robot",
+					Subsystem: "commands",
+					Name:      "used-messages",
+					Help:      "How many messages were used while generating a new message",
+				},
 			),
 		),
 	}

metrics/metrics.go

@@ -28,5 +28,6 @@ func (m Metrics) Collectors() []prometheus.Collector {
 		m.TMICommandCount,
 		m.TMIMsgsCount,
 		m.LearnLatency,
+		m.UsedMessagesForGeneration,
 	}
 }