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feat: reminder email opt-in 1 hour before registration opens

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ッ
2026-03-10 14:55:03 +01:00
parent d180a33d6e
commit 7eabe88d30
15 changed files with 558 additions and 16 deletions
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96
packages/api/src/email.ts
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@@ -348,3 +348,99 @@ export async function sendCancellationEmail(params: {
html: cancellationHtml({ firstName: params.firstName }),
});
}
function reminderHtml(params: { firstName?: string | null }) {
const greeting = params.firstName ? `Hoi ${params.firstName},` : "Hoi!";
// Registration opens at 2026-03-16T19:00:00+01:00
const openDateStr = "maandag 16 maart 2026 om 19:00";
const registrationUrl = `${baseUrl}/#registration`;
return `<!DOCTYPE html>
<html lang="nl">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Nog 1 uur — inschrijvingen openen straks!</title>
</head>
<body style="margin:0;padding:0;background:#f4f4f5;font-family:sans-serif;">
<table width="100%" cellpadding="0" cellspacing="0" style="background:#f4f4f5;padding:40px 0;">
<tr>
<td align="center">
<table width="600" cellpadding="0" cellspacing="0" style="background:#214e51;border-radius:4px;overflow:hidden;">
<!-- Header -->
<tr>
<td style="padding:40px 48px 32px;">
<p style="margin:0;font-size:13px;color:rgba(255,255,255,0.5);letter-spacing:0.08em;text-transform:uppercase;">Kunstenkamp</p>
<h1 style="margin:12px 0 0;font-size:28px;color:#ffffff;font-weight:700;">Nog 1 uur!</h1>
</td>
</tr>
<!-- Body -->
<tr>
<td style="padding:0 48px 32px;">
<p style="margin:0 0 16px;font-size:16px;color:rgba(255,255,255,0.85);line-height:1.6;">
${greeting}
</p>
<p style="margin:0 0 16px;font-size:16px;color:rgba(255,255,255,0.85);line-height:1.6;">
Over ongeveer <strong style="color:#ffffff;">1 uur</strong> openen de inschrijvingen voor <strong style="color:#ffffff;">Open Mic Night — vrijdag 18 april 2026</strong>.
</p>
<!-- Time box -->
<table width="100%" cellpadding="0" cellspacing="0" style="background:rgba(255,255,255,0.08);border-radius:4px;margin:24px 0;">
<tr>
<td style="padding:20px 24px;">
<p style="margin:0 0 8px;font-size:12px;color:rgba(255,255,255,0.5);text-transform:uppercase;letter-spacing:0.06em;">Inschrijvingen openen</p>
<p style="margin:0;font-size:18px;color:#ffffff;font-weight:600;">${openDateStr}</p>
</td>
</tr>
</table>
<p style="margin:0 0 24px;font-size:16px;color:rgba(255,255,255,0.85);line-height:1.6;">
Wees er snel bij — de plaatsen zijn beperkt!
</p>
<!-- CTA button -->
<table cellpadding="0" cellspacing="0">
<tr>
<td style="border-radius:2px;background:#ffffff;">
<a href="${registrationUrl}" style="display:inline-block;padding:14px 32px;font-size:16px;font-weight:600;color:#214e51;text-decoration:none;">
Schrijf je in
</a>
</td>
</tr>
</table>
<p style="margin:16px 0 0;font-size:13px;color:rgba(255,255,255,0.4);">
Of ga naar: <span style="color:rgba(255,255,255,0.6);">${registrationUrl}</span>
</p>
</td>
</tr>
<!-- Footer -->
<tr>
<td style="padding:24px 48px;border-top:1px solid rgba(255,255,255,0.1);">
<p style="margin:0;font-size:13px;color:rgba(255,255,255,0.4);line-height:1.6;">
Je ontvangt dit bericht omdat je een herinnering hebt aangevraagd.<br/>
Vragen? Mail ons op <a href="mailto:info@kunstenkamp.be" style="color:rgba(255,255,255,0.6);">info@kunstenkamp.be</a><br/>
Kunstenkamp — Een initiatief voor en door kunstenaars.
</p>
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>`;
}
export async function sendReminderEmail(params: {
to: string;
firstName?: string | null;
}) {
const transport = getTransport();
if (!transport) {
console.warn("SMTP not configured — skipping reminder email");
return;
}
await transport.sendMail({
from,
to: params.to,
subject: "Nog 1 uur — inschrijvingen openen straks!",
html: reminderHtml({ firstName: params.firstName }),
});
}

144
packages/api/src/routers/index.ts
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@@ -1,6 +1,6 @@
import { randomUUID } from "node:crypto";
import { db } from "@kk/db";
import { adminRequest, registration } from "@kk/db/schema";
import { adminRequest, registration, reminder } from "@kk/db/schema";
import { user } from "@kk/db/schema/auth";
import { drinkkaart, drinkkaartTopup } from "@kk/db/schema/drinkkaart";
import { env } from "@kk/env/server";
@@ -10,12 +10,19 @@ import { z } from "zod";
import {
sendCancellationEmail,
sendConfirmationEmail,
sendReminderEmail,
sendUpdateEmail,
} from "../email";
import { adminProcedure, protectedProcedure, publicProcedure } from "../index";
import { generateQrSecret } from "../lib/drinkkaart-utils";
import { drinkkaartRouter } from "./drinkkaart";
// Registration opens at this date — reminders fire 1 hour before
const REGISTRATION_OPENS_AT = new Date("2026-03-10T17:00:00+01:00");
const REMINDER_WINDOW_START = new Date(
REGISTRATION_OPENS_AT.getTime() - 60 * 60 * 1000,
);
// ---------------------------------------------------------------------------
// Shared helpers
// ---------------------------------------------------------------------------
@@ -729,6 +736,97 @@ export const appRouter = {
return { success: true, message: "Admin toegang geweigerd" };
}),
// ---------------------------------------------------------------------------
// Reminder opt-in
// ---------------------------------------------------------------------------
/**
* Subscribe an email address to receive a reminder 1 hour before registration
* opens. Silently deduplicates — if the email is already subscribed, returns
* ok:true without error. Returns ok:false if registration is already open.
*/
subscribeReminder: publicProcedure
.input(z.object({ email: z.string().email() }))
.handler(async ({ input }) => {
const now = Date.now();
// Registration is already open — no point subscribing
if (now >= REGISTRATION_OPENS_AT.getTime()) {
return { ok: false, reason: "already_open" as const };
}
// Check for an existing subscription (silent dedup)
const existing = await db
.select({ id: reminder.id })
.from(reminder)
.where(eq(reminder.email, input.email))
.limit(1)
.then((rows) => rows[0]);
if (existing) {
return { ok: true };
}
await db.insert(reminder).values({
id: randomUUID(),
email: input.email,
});
return { ok: true };
}),
/**
* Send pending reminder emails to all opted-in addresses.
* Protected by a shared secret (`CRON_SECRET`) passed as an Authorization
* header. Should be called by a Cloudflare Cron Trigger at the top of
* every hour, or directly via `POST /api/cron/reminders`.
*
* Only sends when the current time is within the 1-hour reminder window
* (between REGISTRATION_OPENS_AT - 1h and REGISTRATION_OPENS_AT).
*/
sendReminders: publicProcedure
.input(z.object({ secret: z.string() }))
.handler(async ({ input }) => {
// Validate the shared secret
if (!env.CRON_SECRET || input.secret !== env.CRON_SECRET) {
throw new Error("Unauthorized");
}
const now = Date.now();
const windowStart = REMINDER_WINDOW_START.getTime();
const windowEnd = REGISTRATION_OPENS_AT.getTime();
// Only send during the reminder window
if (now < windowStart || now >= windowEnd) {
return { sent: 0, skipped: true, reason: "outside_window" as const };
}
// Fetch all unsent reminders
const pending = await db
.select()
.from(reminder)
.where(isNull(reminder.sentAt));
let sent = 0;
const errors: string[] = [];
for (const row of pending) {
try {
await sendReminderEmail({ to: row.email });
await db
.update(reminder)
.set({ sentAt: new Date() })
.where(eq(reminder.id, row.id));
sent++;
} catch (err) {
errors.push(`${row.email}: ${String(err)}`);
console.error(`Failed to send reminder to ${row.email}:`, err);
}
}
return { sent, skipped: false, errors };
}),
// ---------------------------------------------------------------------------
// Checkout
// ---------------------------------------------------------------------------
@@ -835,3 +933,47 @@ export const appRouter = {
export type AppRouter = typeof appRouter;
export type AppRouterClient = RouterClient<typeof appRouter>;
/**
* Standalone function that sends pending reminder emails.
* Exported so that the Cloudflare Cron HTTP handler can call it directly
* without needing drizzle-orm as a direct dependency of apps/web.
*/
export async function runSendReminders(): Promise<{
sent: number;
skipped: boolean;
reason?: string;
errors: string[];
}> {
const now = Date.now();
const windowStart = REMINDER_WINDOW_START.getTime();
const windowEnd = REGISTRATION_OPENS_AT.getTime();
if (now < windowStart || now >= windowEnd) {
return { sent: 0, skipped: true, reason: "outside_window", errors: [] };
}
const pending = await db
.select()
.from(reminder)
.where(isNull(reminder.sentAt));
let sent = 0;
const errors: string[] = [];
for (const row of pending) {
try {
await sendReminderEmail({ to: row.email });
await db
.update(reminder)
.set({ sentAt: new Date() })
.where(eq(reminder.id, row.id));
sent++;
} catch (err) {
errors.push(`${row.email}: ${String(err)}`);
console.error(`Failed to send reminder to ${row.email}:`, err);
}
}
return { sent, skipped: false, errors };
}

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packages/db/local.db
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9
packages/db/src/migrations/0007_reminder.sql Normal file
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@@ -0,0 +1,9 @@
-- Add reminder table for email reminders 1 hour before registration opens
CREATE TABLE `reminder` (
`id` text PRIMARY KEY NOT NULL,
`email` text NOT NULL,
`sent_at` integer,
`created_at` integer DEFAULT (cast(unixepoch('subsecond') * 1000 as integer)) NOT NULL
);
--> statement-breakpoint
CREATE INDEX `reminder_email_idx` ON `reminder` (`email`);

28
packages/db/src/migrations/meta/_journal.json
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@@ -29,6 +29,34 @@
"when": 1772530000000,
"tag": "0003_add_guests",
"breakpoints": true
},
{
"idx": 4,
"version": "6",
"when": 1772536320000,
"tag": "0004_drinkkaart",
"breakpoints": true
},
{
"idx": 5,
"version": "6",
"when": 1772596240000,
"tag": "0005_registration_drinkkaart_credit",
"breakpoints": true
},
{
"idx": 6,
"version": "6",
"when": 1772672880000,
"tag": "0006_mollie_migration",
"breakpoints": true
},
{
"idx": 7,
"version": "6",
"when": 1772931300000,
"tag": "0007_reminder",
"breakpoints": true
}
]
}

1
packages/db/src/schema/index.ts
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@@ -2,3 +2,4 @@ export * from "./admin-requests";
export * from "./auth";
export * from "./drinkkaart";
export * from "./registrations";
export * from "./reminders";

18
packages/db/src/schema/reminders.ts Normal file
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@@ -0,0 +1,18 @@
import { sql } from "drizzle-orm";
import { index, integer, sqliteTable, text } from "drizzle-orm/sqlite-core";
export const reminder = sqliteTable(
"reminder",
{
id: text("id").primaryKey(), // UUID
email: text("email").notNull(),
sentAt: integer("sent_at", { mode: "timestamp_ms" }),
createdAt: integer("created_at", { mode: "timestamp_ms" })
.default(sql`(cast(unixepoch('subsecond') * 1000 as integer))`)
.notNull(),
},
(t) => [index("reminder_email_idx").on(t.email)],
);
export type Reminder = typeof reminder.$inferSelect;
export type NewReminder = typeof reminder.$inferInsert;

1
packages/env/src/server.ts vendored
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@@ -26,6 +26,7 @@ export const env = createEnv({
.enum(["development", "production", "test"])
.default("development"),
MOLLIE_API_KEY: z.string().min(1).optional(),
CRON_SECRET: z.string().min(1).optional(),
},
runtimeEnv: process.env,
emptyStringAsUndefined: true,

4
packages/infra/alchemy.run.ts
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@@ -32,7 +32,11 @@ export const web = await TanStackStart("web", {
SMTP_FROM: getEnvVar("SMTP_FROM"),
// Payments (Mollie)
MOLLIE_API_KEY: getEnvVar("MOLLIE_API_KEY"),
// Cron secret for protected scheduled endpoints
CRON_SECRET: getEnvVar("CRON_SECRET"),
},
// Fire every hour so the reminder check can run at 18:00 on 2026-03-16
crons: ["0 * * * *"],
domains: ["kunstenkamp.be", "www.kunstenkamp.be"],
});