feat: harden prepaid billing and commercial operations

1 files changed, 43 insertions, 5 deletions

diff --git a/internal/telemetry/metrics.go b/internal/telemetry/metrics.go
index 4942d8d..04cc494 100644
--- a/internal/telemetry/metrics.go
+++ b/internal/telemetry/metrics.go
@@ -4,14 +4,44 @@ import (
 	"fmt"
 	"net/http"
 	"sync/atomic"
+
+	"aigw/internal/billing"
 )
 
 type Metrics struct {
-	requests     atomic.Uint64
-	failed       atomic.Uint64
-	inFlight     atomic.Int64
-	attempts     atomic.Uint64
-	droppedUsage atomic.Uint64
+	requests            atomic.Uint64
+	failed              atomic.Uint64
+	inFlight            atomic.Int64
+	attempts            atomic.Uint64
+	droppedUsage        atomic.Uint64
+	settlementBacklog   atomic.Int64
+	settlementSpool     atomic.Int64
+	stripeRefundBacklog atomic.Int64
+	stripeUncollected   atomic.Int64
+	stripeMismatches    atomic.Int64
+	stripeWebhooks      atomic.Int64
+	unmeteredSuccesses  atomic.Int64
+	ready               atomic.Int64
+}
+
+func (m *Metrics) SetSettlementQueue(backlog int64, spool int) {
+	m.settlementBacklog.Store(backlog)
+	m.settlementSpool.Store(int64(spool))
+}
+func (m *Metrics) SetReady(ready bool) {
+	if ready {
+		m.ready.Store(1)
+	} else {
+		m.ready.Store(0)
+	}
+}
+
+func (m *Metrics) SetStripeOperations(status billing.OperationalStatus) {
+	m.stripeRefundBacklog.Store(status.RefundBacklog)
+	m.stripeUncollected.Store(status.UncollectedMicros)
+	m.stripeMismatches.Store(status.ReconciliationMismatches)
+	m.stripeWebhooks.Store(status.UnprocessedWebhooks)
+	m.unmeteredSuccesses.Store(status.UnmeteredSuccesses)
 }
 
 func (m *Metrics) RequestStarted() {
@@ -41,4 +71,12 @@ func (m *Metrics) ServeHTTP(w http.ResponseWriter, _ *http.Request) {
 	fmt.Fprintf(w, "# TYPE aigw_requests_in_flight gauge\naigw_requests_in_flight %d\n", m.inFlight.Load())
 	fmt.Fprintf(w, "# TYPE aigw_upstream_attempts_total counter\naigw_upstream_attempts_total %d\n", m.attempts.Load())
 	fmt.Fprintf(w, "# TYPE aigw_usage_events_dropped_total counter\naigw_usage_events_dropped_total %d\n", m.droppedUsage.Load())
+	fmt.Fprintf(w, "# TYPE aigw_billing_settlement_backlog gauge\naigw_billing_settlement_backlog %d\n", m.settlementBacklog.Load())
+	fmt.Fprintf(w, "# TYPE aigw_billing_settlement_spool_records gauge\naigw_billing_settlement_spool_records %d\n", m.settlementSpool.Load())
+	fmt.Fprintf(w, "# TYPE aigw_stripe_refund_backlog gauge\naigw_stripe_refund_backlog %d\n", m.stripeRefundBacklog.Load())
+	fmt.Fprintf(w, "# TYPE aigw_billing_uncollected_micros gauge\naigw_billing_uncollected_micros %d\n", m.stripeUncollected.Load())
+	fmt.Fprintf(w, "# TYPE aigw_stripe_reconciliation_mismatches gauge\naigw_stripe_reconciliation_mismatches %d\n", m.stripeMismatches.Load())
+	fmt.Fprintf(w, "# TYPE aigw_stripe_webhook_backlog gauge\naigw_stripe_webhook_backlog %d\n", m.stripeWebhooks.Load())
+	fmt.Fprintf(w, "# TYPE aigw_billing_unmetered_successes gauge\naigw_billing_unmetered_successes %d\n", m.unmeteredSuccesses.Load())
+	fmt.Fprintf(w, "# TYPE aigw_ready gauge\naigw_ready %d\n", m.ready.Load())
 }