strudel/website/src/components/LeftSidebar/LeftSidebar.astro

---
// import { getLanguageFromURL } from '../../languages';
import { SIDEBAR } from '../../config';

type Props = {
  currentPage: string;
};

const { currentPage } = Astro.props as Props;
const { BASE_URL } = import.meta.env;
let currentPageMatch = currentPage.slice(BASE_URL.length, currentPage.endsWith('/') ? -1 : undefined);

const langCode = 'en'; // getLanguageFromURL(currentPage);
const sidebar = SIDEBAR[langCode];
---

<nav aria-labelledby="grid-left" class="max-h-full overflow-auto pb-20">
  <ul>
    {
      Object.entries(sidebar).map(([header, children]) => (
        <li>
          <div class="nav-group pb-4">
            <h2>{header}</h2>
            <ul>
              {children.map((child) => {
                const url = '.' + Astro.site?.pathname + child.link;
                return (
                  <li class="">
                    <a
                      class={`pl-4 py-0.5 w-full hover:bg-header block${
                        currentPageMatch === child.link ? ' bg-header' : ''
                      }`}
                      href={url}
                      aria-current={currentPageMatch === child.link ? 'page' : false}
                    >
                      {child.text}
                    </a>
                  </li>
                );
              })}
            </ul>
          </div>
        </li>
      ))
    }
  </ul>
</nav>

<script is:inline>
  window.addEventListener('DOMContentLoaded', () => {
    var target = document.querySelector('[aria-current="page"]');
    if (target && target.offsetTop > window.innerHeight - 100) {
      document.querySelector('.nav-groups').scrollTop = target.offsetTop;
    }
  });
</script>