metrics

var (
	RequestsTotal = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Name: "talker_requests_total",
			Help: "Total number of HTTP requests made to the API",
		},
		[]string{"method", "path", "status"},
	)

	TokensConsumedTotal = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Name: "talker_tokens_consumed_total",
			Help: "Total number of tokens consumed by the Talker API",
		},
		labelNames,
	)

	RequestDuration = promauto.NewHistogramVec(
		prometheus.HistogramOpts{
			Name:    "talker_request_duration_seconds",
			Help:    "Histogram of request latencies",
			Buckets: prometheus.DefBuckets,
		},
		[]string{"method", "path", "status"},
	)
)