package metrics

import (
	"github.com/prometheus/client_golang/prometheus"
	"sigs.k8s.io/controller-runtime/pkg/metrics"
)

const (
	reconcileComponent           = "controller"
	ReconcileFailedCounterName   = "reconcileFailedCounter"
	UnknownReconcileController   = "unknown"
	UnknownReconcileResourceName = "unknown"
)

var (
	ReconcileFailedCounter = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: reconcileComponent,
			Name:      "reconcile_failed_total",
			Help:      "Counter of reconcile failures",
		},
		[]string{"resource_name", "controller_name"},
	)
)

func init() {
	metrics.Registry.MustRegister(ReconcileFailedCounter)
	Reclaimer.AddCounterVec(ReconcileFailedCounterName, "resource_name", ReconcileFailedCounter)
}

func ObserveReconcileFailure(resourceName string, controllerName string) {
	if resourceName == "" {
		resourceName = UnknownReconcileResourceName
	}
	if controllerName == "" {
		controllerName = UnknownReconcileController
	}
	Reclaimer.GetCounterVec(ReconcileFailedCounterName, resourceName).WithLabelValues(controllerName).Inc()
}

func ClearReconcileFailure(resourceName string) {
	if resourceName == "" {
		resourceName = UnknownReconcileResourceName
	}
	Reclaimer.DeleteVec(ReconcileFailedCounterName, resourceName)
}