未読のページにランダムジャンプするUserScript

scrapbox.PageMenu.addMenu({
  title: 'Jump to an unread page',
  image: 'https://img.icons8.com/ios/180/shuffle.png',
  onClick: () => {
    const lines = document.getElementsByClassName('lines')?.[0];
    const observer = new MutationObserver(() => {
      const unreadTelomeres = lines.getElementsByClassName('telomere-border unread');
      if (unreadTelomeres.length > 0) {
        console.log(`/${scrapbox.Project.name}/${scrapbox.Page.title} is an unread page.`);
        observer.disconnect();
        return;
      }
      document.getElementsByClassName('random-jump-button')?.[0].click();
    });
    observer.observe(lines, {childList: true});
    document.getElementsByClassName('random-jump-button')?.[0].click();
  },
});