export function useTimeAgo() {
  const timeago = (date) => {
    const now = new Date();
    const diff = now - date;

    if (diff < 1000) {
      return 'just now';
    } else if (diff < 60000) {
      const seconds = Math.floor(diff / 1000);
      return `${seconds} ${plural('second', seconds)} ago`;
    } else if (diff < 3600000) {
      const minutes = Math.floor(diff / 60000);
      return `${minutes} ${plural('minute', minutes)} ago`;
    } else if (diff < 86400000) {
      const hours = Math.floor(diff / 3600000);
      return `${hours} ${plural('hour', hours)} ago`;
    } else {
      const days = Math.floor(diff / 86400000);
      return `${days} ${plural('day', days)} ago`;
    }
  };

  // #278 -- this function might need to be rewritten to support l18n
  const plural = (word, count) => {
    return count !== 1 ? `${word}s` : word;
  };

  return { timeago };
}