Eventbrite を使わない、無料コミュニティイベントの参加登録

import { verifyWebhook, WebhookVerificationError } from "@ikiform/sdk/webhooks";

const TITLES: Record<string, string> = {
  keynote: "Opening talk, 10:00",
  workshop_a: "Workshop A, 11:30",
  workshop_b: "Workshop B, 11:30",
  panel: "Closing panel, 15:00",
};

function escape(text: string) {
  return text.replace(/[&<>"']/g, (char) => `&#${char.charCodeAt(0)};`);
}

export async function POST(request: Request) {
  const payload = await request.text();
  try {
    const event = await verifyWebhook({
      payload,
      headers: request.headers,
      secret: process.env.IKIFORM_WEBHOOK_SECRET!,
    });
    if (event.type !== "submission.created") return new Response(null, { status: 204 });

    const fields = event.data.fields;
    const email = String(fields.email ?? "");
    const chosen = (Array.isArray(fields.sessions) ? fields.sessions : []).map((id) => TITLES[String(id)] ?? String(id));
    const response = await fetch("https://api.resend.com/emails", {
      method: "POST",
      headers: {
        Authorization: `Bearer ${process.env.RESEND_API_KEY}`,
        "Content-Type": "application/json",
        "Idempotency-Key": request.headers.get("webhook-id") ?? event.data.submission_id,
      },
      body: JSON.stringify({
        from: "Community Day <hello@community.example>",
        to: email,
        reply_to: "hello@community.example",
        subject: "You're registered for Community Day, 14 March",
        html: [
          `<p>Hi ${escape(String(fields.name ?? ""))},</p>`,
          "<p>You're on the list for Community Day on 14 March at The Old Library. Doors open at 9:30.</p>",
          `<p>Your sessions: ${chosen.map(escape).join(", ")}.</p>`,
          '<p><a href="https://community.example/day.ics">Add it to your calendar</a>. Can\'t come after all? Reply to this email.</p>',
        ].join(""),
      }),
    });
    if (!response.ok) return new Response(`Email API answered ${response.status}`, { status: 502 });
    return new Response(null, { status: 204 });
  } catch (error) {
    if (error instanceof WebhookVerificationError) return new Response(error.reason, { status: 400 });
    throw error;
  }
}

import { createClient } from "@ikiform/sdk";

const ikiform = createClient({ apiKey: process.env.IKIFORM_SECRET_KEY! });
const ROOMS: Record<string, number> = { keynote: 200, workshop_a: 30, workshop_b: 30, panel: 200 };
const latest = new Map<string, string[]>();

for await (const submission of ikiform.submissions.iterate({ formId: process.argv[2], status: "received", limit: 100 })) {
  const email = String(submission.fields.email ?? "").trim().toLowerCase();
  const chosen = Array.isArray(submission.fields.sessions) ? submission.fields.sessions.map(String) : [];
  if (email && !latest.has(email)) latest.set(email, chosen);
}

for (const [session, seats] of Object.entries(ROOMS)) {
  const taken = [...latest.values()].filter((chosen) => chosen.includes(session)).length;
  console.log(`${session.padEnd(12)} ${String(taken).padStart(4)} of ${seats}${taken >= seats ? "  FULL" : ""}`);
}