collinenlucy.nl/client/index.js

const COOKIE_NAME = "hasRsvped";

function hasRsvped() {
  const cookies = Object.fromEntries(
    document.cookie.split(";").map((x) => x.trim().split("="))
  );

  return cookies[COOKIE_NAME] === "true";
}

function padTime(t) {
  return `${t}`.padStart(2, '0');
}

function updateCountdown() {
  const countdownDate = new Date("2026-05-16T14:30:00.000+02:00");
  const now = new Date();
  const msRemaining = countdownDate.getTime() - now.getTime();
  const daysRemaining = Math.floor(msRemaining / (1000 * 60 * 60 * 24));
  const hoursRemaining = Math.floor(msRemaining / (1000 * 60 * 60)) % 24;
  const minutesRemaining = Math.floor(msRemaining / (1000 * 60)) % 60;
  const secondsRemaining = Math.floor(msRemaining / 1000) % 60;
  const countdownNode = document.getElementById("countdown");
  countdownNode.innerText = `${daysRemaining} days ${padTime(hoursRemaining)}:${padTime(minutesRemaining)}:${padTime(secondsRemaining)}`;
}

window.onload = function () {
  if (!hasRsvped()) {
    const rsvpButton = document.querySelector(".rsvpButton");
    rsvpButton.classList.remove("hidden");
  }
  updateCountdown();
  window.setInterval(updateCountdown, 500);
};