import { jsonError } from "../../../../common.js";

export async function onRequestPost(context: RequestContext) {
  const { D1 } = context.env;
  const { event } = context.data;

  try {
    const row = await D1.prepare(
      "SELECT performed_at FROM events WHERE id = ?;",
    )
      .bind(event.id)
      .first();

    if (typeof row?.performed_at === "number")
      return jsonError("Event already marked as completed or forgotten", 400);

    await D1.batch([
      D1.prepare("UPDATE events SET performed_at = 0 WHERE id = ?;").bind(
        event.id,
      ),
      D1.prepare(
        "UPDATE et_members SET points = points - 5 WHERE id = ?;",
      ).bind(event.created_by),
    ]);
  } catch (e) {
    console.log(e);

    return jsonError("Failed to complete batch transaction", 500);
  }

  return new Response(null, {
    status: 204,
  });
}