expiry.js

1const pad = (n) => String(n).padStart(2, '0');23function label(left) {4  const s = Math.floor(left / 1000);5  const d = Math.floor(s / 86400);6  const h = Math.floor((s % 86400) / 3600);7  const m = Math.floor((s % 3600) / 60);8  if (s < 3600) return `${pad(m)}m ${pad(s % 60)}s left`;9  if (d) return `${d}d ${pad(h)}h ${pad(m)}m left`;10  return `${h}h ${pad(m)}m left`;11}1213function expired() {14  for (const button of document.querySelectorAll('[data-add]')) button.disabled = true;15  for (const buy of document.querySelectorAll('[data-buy]')) {16    buy.removeAttribute('href');17    buy.setAttribute('aria-disabled', 'true');18  }19}2021function tick() {22  const node = document.querySelector('[data-expiry]');23  if (!node) return true;24  const left = Number(node.dataset.expiry) - Date.now();25  if (left <= 0) {26    node.textContent = 'Expired';27    expired();28    return true;29  }30  node.textContent = label(left);31  node.dataset.ttl = String(left);32  return false;33}3435let timer = 0;3637function run() {38  clearInterval(timer);39  if (document.hidden) return;40  if (tick()) return;41  timer = setInterval(() => {42    if (tick()) clearInterval(timer);43  }, 1000);44}4546document.addEventListener('visibilitychange', run);47window.addEventListener('flip', run);48run();