metrics

var (
	FunctionsTotal = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Name: "serverless_function_processed_total",
			Help: "Total number of functions processed (each function is counted only once, even if it is processed multiple times)",
		},
		[]string{"runtime", "source"},
	)
	ReconciliationsTotal = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Name: "serverless_function_reconciliations_total",
			Help: "Total number of reconciliations for functions (each reconciliation is counted, even if it is for the same function)",
		},
		[]string{"runtime", "source"},
	)
	ReconciliationTime = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Name:    "serverless_function_reconciliation_time_seconds",
			Help:    "Time taken for a single reconciliation of a function (including all single reconciliation)",
			Buckets: []float64{0.1, 0.3, 1, 3, 10, 30, 90, 300},
		},
		[]string{"runtime", "source"},
	)
	StateReachTime = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Name:    "serverless_function_state_reach_time_seconds",
			Help:    "Time taken for a function to reach a specific state (only generation changes are counted, not every reconciliation)",
			Buckets: []float64{0.1, 0.3, 1, 3, 10, 30, 90, 300},
		},
		[]string{"runtime", "source", "state"},
	)
)