Eidolon/src/components/SeoHead.astro

---
import { siteConfig } from '@/site.config';
import { getWebmentionEndpoint } from '@/lib/webmentions';

interface Props {
  title?: string;
  description?: string;
  image?: string;
  type?: 'website' | 'article';
  noindex?: boolean;
  webmention?: boolean;
}

const {
  title,
  description = siteConfig.site.description,
  image,
  type = 'website',
  noindex = false,
  webmention = false
} = Astro.props;
const pageTitle = title ? `${title} - ${siteConfig.site.title}` : siteConfig.site.title;
const canonical = new URL(Astro.url.pathname, siteConfig.site.url);
const imageUrl = image ? new URL(image, siteConfig.site.url) : undefined;
const webmentionEndpoint = webmention && siteConfig.webmentions.enabled && siteConfig.webmentions.endpoint.trim()
  ? getWebmentionEndpoint(siteConfig.webmentions.endpoint, 'receive')
  : undefined;
---

<title>{pageTitle}</title>
<meta name="description" content={description} />
<link rel="canonical" href={canonical} />
{webmentionEndpoint && <link rel="webmention" href={webmentionEndpoint} />}
<meta property="og:type" content={type} />
<meta property="og:title" content={pageTitle} />
<meta property="og:description" content={description} />
<meta property="og:url" content={canonical} />
<meta property="og:site_name" content={siteConfig.site.title} />
{imageUrl && <meta property="og:image" content={imageUrl} />}
<meta name="twitter:card" content={imageUrl ? 'summary_large_image' : 'summary'} />
{noindex && <meta name="robots" content="noindex, nofollow" />}