observability

type HttpMetrics struct {
	RequestsTotal   *prometheus.CounterVec
	RequestDuration *prometheus.HistogramVec
	RequestSize     *prometheus.SummaryVec
	ResponseSize    *prometheus.SummaryVec
}

type Middleware interface {
	// WrapHandler wraps the given HTTP handler for instrumentation.
	WrapHandler(handler http.Handler) http.HandlerFunc
}

type MirrorMetrics struct {
	ListProviderVersions     *prometheus.CounterVec
	ListProviderInstallation *prometheus.CounterVec
	RetrieveProviderArchive  *prometheus.CounterVec
}

type ModuleMetrics struct {
	ListVersions *prometheus.CounterVec
	Download     *prometheus.CounterVec
}

type ProviderMetrics struct {
	ListVersions *prometheus.CounterVec
	Download     *prometheus.CounterVec
}

type ServerMetrics struct {
	Mirror   *MirrorMetrics
	Module   *ModuleMetrics
	Provider *ProviderMetrics
	Http     *HttpMetrics
}