---
import footerData from '../data/blog-footers.json';

interface FooterLink {
  title: string;
  href: string;
}

interface RelatedPost extends FooterLink {
  image: string;
  alt: string;
}

interface FooterData {
  previous?: FooterLink;
  next?: FooterLink;
  related: RelatedPost[];
}

const { entryId } = Astro.props as { entryId: string };
const footer = (footerData as Record<string, FooterData>)[entryId];
---

{footer && (
  <footer class="blog-post-footer">
    {(footer.previous || footer.next) && (
      <nav class="post-pagination" aria-label="Article navigation">
        <div class="post-pagination__item post-pagination__item--previous">
          {footer.previous && (
            <>
              <span>Previous Post</span>
              <h2><a href={footer.previous.href}>{footer.previous.title}</a></h2>
            </>
          )}
        </div>
        <div class="post-pagination__item post-pagination__item--next">
          {footer.next && (
            <>
              <span>Next Post</span>
              <h2><a href={footer.next.href}>{footer.next.title}</a></h2>
            </>
          )}
        </div>
      </nav>
    )}

    {footer.related.length > 0 && (
      <section class="related-posts" aria-labelledby={`related-posts-${entryId.replace('/', '-')}`}>
        <div class="container">
          <h2 id={`related-posts-${entryId.replace('/', '-')}`}>Similar Blog Posts</h2>
          <div class="related-posts__list">
            {footer.related.map((post) => (
              <article class="related-post">
                <a class="related-post__image-link" href={post.href} aria-label={`Read full post: ${post.title}`}>
                  <img src={post.image} alt={post.alt} loading="lazy" />
                </a>
                <h3><a href={post.href}>{post.title}</a></h3>
              </article>
            ))}
          </div>
        </div>
      </section>
    )}
  </footer>
)}

<style>
  .post-pagination {
    display: flex;
    justify-content: space-between;
    margin: 3.125rem auto 5rem;
    padding-top: 1.5625rem;
    width: min(calc(100% - 2rem), 948px);
  }

  .post-pagination__item {
    flex: 0 0 48%;
    max-width: 48%;
  }

  .post-pagination__item--next {
    text-align: end;
  }

  .post-pagination span {
    color: var(--color-primary);
    display: block;
    margin-bottom: .35rem;
  }

  .post-pagination h2 {
    font-size: 1.25rem;
    line-height: 1.4;
    margin: 0;
  }

  .post-pagination a,
  .related-post a {
    color: inherit;
    text-decoration: none;
  }

  .post-pagination a:hover,
  .post-pagination a:focus-visible,
  .related-post a:hover,
  .related-post a:focus-visible {
    color: var(--color-accent);
  }

  .related-posts {
    background: #fafafa;
    padding-block: 5rem 3.75rem;
  }

  .related-posts .container {
    padding-inline: 1rem;
    width: min(100%, 980px);
  }

  .related-posts h2 {
    font-size: 2.2rem;
    line-height: 1.275;
    margin: 0 0 2.5rem;
  }

  .related-posts__list {
    display: grid;
    gap: 1.875rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .related-post {
    background: white;
    border-radius: 4px;
    overflow: hidden;
    padding: .5rem;
  }

  .related-post__image-link,
  .related-post img {
    display: block;
  }

  .related-post img {
    border-radius: 4px;
    height: 240px;
    object-fit: cover;
    width: 100%;
  }

  .related-post h3 {
    font-size: 1rem;
    line-height: 1.625;
    margin: .7rem 0 0;
  }

  @media (max-width: 991px) {
    .related-posts__list {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 767px) {
    .post-pagination {
      margin-block: 1.5625rem 2.5rem;
      padding-top: 1.5625rem;
    }

    .post-pagination h2 {
      font-size: 1rem;
      line-height: 1.125;
    }

    .related-posts {
      padding-block: 2.5rem 1.25rem;
    }

    .related-posts h2 {
      font-size: 1.875rem;
      margin-bottom: 2.5rem;
    }

    .related-posts__list {
      display: block;
    }

    .related-post {
      margin-bottom: 1.25rem;
    }
  }
</style>