first commit

internal/payments/dispatch.go

@@ -0,0 +1,69 @@
+package payments
+
+import (
+	"context"
+	"log/slog"
+	"strconv"
+	"time"
+
+	"github.com/noderunners/nip05api/internal/audit"
+	"github.com/noderunners/nip05api/internal/dm"
+	"github.com/noderunners/nip05api/internal/invoice"
+	"github.com/noderunners/nip05api/internal/nostr"
+	"github.com/noderunners/nip05api/internal/user"
+	"github.com/noderunners/nip05api/internal/webhook"
+)
+
+func (w *Worker) dispatchEvents(ctx context.Context, u *user.User, p *invoice.PendingInvoice, ev dm.EventType) {
+	vars := buildVars(u, w.domain, w.frontend)
+	if err := w.dms.Send(ctx, ev, u.Pubkey, vars); err != nil {
+		slog.Error("dm enqueue", "err", err)
+	}
+	data := map[string]any{
+		"pubkey":            u.Pubkey,
+		"npub":              nostr.HexToNpub(u.Pubkey),
+		"username":          u.Username,
+		"subscription_type": string(u.SubscriptionType),
+		"amount_sats":       p.AmountSats,
+		"payment_hash":      p.PaymentHash,
+		"is_renewal":        p.IsRenewal,
+	}
+	if u.ExpiresAt != nil {
+		data["expires_at"] = u.ExpiresAt.UTC().Format(time.RFC3339)
+	}
+	if err := w.hooks.Enqueue(ctx, webhook.EventUserPaid, data); err != nil {
+		slog.Error("webhook enqueue", "err", err)
+	}
+	w.audit.Log(ctx, audit.ActionPaymentConfirmed, audit.ActorSystem, u.Pubkey, map[string]any{
+		"payment_hash": p.PaymentHash,
+		"amount_sats":  p.AmountSats,
+		"is_renewal":   p.IsRenewal,
+		"event":        string(ev),
+	})
+	slog.Info("payment confirmed",
+		"pubkey", u.Pubkey, "username", u.Username,
+		"amount_sats", p.AmountSats, "renewal", p.IsRenewal)
+}
+
+func buildVars(u *user.User, domain, frontend string) map[string]string {
+	expires := "lifetime"
+	days := ""
+	if u.ExpiresAt != nil {
+		expires = u.ExpiresAt.Format("2006-01-02")
+		d := int(time.Until(*u.ExpiresAt).Hours() / 24)
+		if d < 0 {
+			d = 0
+		}
+		days = strconv.Itoa(d)
+	}
+	return map[string]string{
+		"username":          u.Username,
+		"npub":              nostr.HexToNpub(u.Pubkey),
+		"pubkey":            u.Pubkey,
+		"domain":            domain,
+		"expires_at":        expires,
+		"days_remaining":    days,
+		"frontend_url":      frontend,
+		"subscription_type": string(u.SubscriptionType),
+	}
+}