metrics

var (
	// ReconcileTotal counts reconcile attempts by outcome.
	ReconcileTotal = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Name: "opm_controller_reconcile_total",
			Help: "Total number of reconcile attempts by outcome.",
		},
		[]string{"name", "namespace", "outcome"},
	)

	// ReconcileDuration observes reconcile duration in seconds.
	ReconcileDuration = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Name:    "opm_controller_reconcile_duration_seconds",
			Help:    "Duration of reconcile attempts in seconds.",
			Buckets: prometheus.DefBuckets,
		},
		[]string{"name", "namespace"},
	)

	// ApplyResourcesTotal counts resources applied by action.
	ApplyResourcesTotal = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Name: "opm_controller_apply_resources_total",
			Help: "Total number of resources applied by action.",
		},
		[]string{"name", "namespace", "action"},
	)

	// PruneResourcesTotal counts resources pruned.
	PruneResourcesTotal = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Name: "opm_controller_prune_resources_total",
			Help: "Total number of resources pruned.",
		},
		[]string{"name", "namespace"},
	)

	// InventorySize reports the current inventory entry count.
	InventorySize = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "opm_controller_inventory_size",
			Help: "Current number of entries in the inventory.",
		},
		[]string{"name", "namespace"},
	)
)