metrics

var (
	// RequestDuration tracks the duration of VDB requests
	RequestDuration = promauto.NewHistogramVec(
		prometheus.HistogramOpts{
			Name:    "weave_request_duration_seconds",
			Help:    "Duration of VDB requests in seconds",
			Buckets: []float64{.001, .005, .01, .05, .1, .5, 1, 5, 10},
		},
		[]string{"vdb_type", "operation", "status"},
	)

	// DocumentCount tracks the number of documents processed
	DocumentCount = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Name: "weave_documents_total",
			Help: "Total number of documents processed",
		},
		[]string{"vdb_type", "operation"},
	)

	// ErrorCount tracks errors encountered
	ErrorCount = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Name: "weave_errors_total",
			Help: "Total number of errors encountered",
		},
		[]string{"vdb_type", "operation", "error_type"},
	)

	// ActiveConnections tracks active VDB connections
	ActiveConnections = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "weave_active_connections",
			Help: "Number of active VDB connections",
		},
		[]string{"vdb_type"},
	)
)