fix: email

packages/api/src/constants.ts

@@ -0,0 +1,9 @@
+// ---------------------------------------------------------------------------
+// Single source-of-truth for event details used across the API
+// ---------------------------------------------------------------------------
+
+export const EVENT = "Open Mic Night — vrijdag 18 april 2026";
+export const OPENS = "maandag 16 maart 2026 om 19:00";
+
+// Registration opens — used for reminder scheduling windows
+export const REGISTRATION_OPENS_AT = new Date("2026-03-16T19:00:00+01:00");

packages/api/src/routers/drinkkaart.ts

@@ -348,7 +348,7 @@ export const drinkkaartRouter = {
 				.then((r) => r[0]);
 
 			if (cardUser) {
-				sendDeductionEmail({
+				await sendDeductionEmail({
 					to: cardUser.email,
 					firstName: cardUser.name.split(" ")[0] ?? cardUser.name,
 					amountCents: input.amountCents,

packages/api/src/routers/index.ts

@@ -18,6 +18,7 @@ import {
 	sum,
 } from "drizzle-orm";
 import { z } from "zod";
+import { REGISTRATION_OPENS_AT } from "../constants";
 import {
 	emailLog,
 	sendCancellationEmail,
@@ -32,8 +33,7 @@ import { adminProcedure, protectedProcedure, publicProcedure } from "../index";
 import { generateQrSecret } from "../lib/drinkkaart-utils";
 import { drinkkaartRouter } from "./drinkkaart";
 
-// Registration opens at this date — reminders fire 24 hours and 1 hour before
-const REGISTRATION_OPENS_AT = new Date("2026-03-16T19:00:00+01:00");
+// Reminder windows derived from the canonical registration open date
 const REMINDER_1H_WINDOW_START = new Date(
 	REGISTRATION_OPENS_AT.getTime() - 60 * 60 * 1000,
 );
@@ -879,13 +879,15 @@ export const appRouter = {
 				email: input.email,
 			});
 
-			// Fire-and-forget — don't let a mail failure block the response
-			sendSubscriptionConfirmationEmail({ to: input.email }).catch((err) =>
-				emailLog("error", "email.catch", {
-					type: "subscription_confirmation",
-					to: input.email,
-					error: String(err),
-				}),
+			// Awaited — CF Workers abandon unawaited promises when the response
+			// returns. Mail errors are caught so they don't fail the request.
+			await sendSubscriptionConfirmationEmail({ to: input.email }).catch(
+				(err) =>
+					emailLog("error", "email.catch", {
+						type: "subscription_confirmation",
+						to: input.email,
+						error: String(err),
+					}),
 			);
 
 			return { ok: true };