adrian-altner.de/src/components/BaseHead.astro
2026-04-21 01:26:19 +02:00

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---
// Import the global.css file here so that it is included on
// all pages through the use of the <BaseHead /> component.
import '~/styles/global.css';
import type { ImageMetadata } from 'astro';
import FallbackImage from '~/assets/blog-placeholder-1.jpg';
import { DEFAULT_LOCALE, type Locale, SITE } from '~/consts';
import { getLocaleFromUrl, switchLocalePath } from '~/i18n/ui';
import { Font } from 'astro:assets';
interface Props {
title: string;
description: string;
image?: ImageMetadata;
locale?: Locale;
}
const canonicalURL = new URL(Astro.url.pathname, Astro.site);
const {
title,
description,
image = FallbackImage,
locale = getLocaleFromUrl(Astro.url) ?? DEFAULT_LOCALE,
} = Astro.props;
const otherLocale: Locale = locale === 'de' ? 'en' : 'de';
const alternateHref = new URL(switchLocalePath(Astro.url.pathname, otherLocale), Astro.site);
const rssHref = new URL(locale === 'de' ? 'rss.xml' : 'en/rss.xml', Astro.site);
---
<!-- Global Metadata -->
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<link rel="icon" type="image/svg+xml" href="/favicon.svg" />
<link rel="icon" href="/favicon.ico" />
<link rel="sitemap" href="/sitemap-index.xml" />
<link rel="alternate" type="application/rss+xml" title={SITE[locale].title} href={rssHref} />
<link rel="alternate" hreflang={locale} href={canonicalURL} />
<link rel="alternate" hreflang={otherLocale} href={alternateHref} />
<link rel="alternate" hreflang="x-default" href={new URL('/', Astro.site)} />
<meta name="generator" content={Astro.generator} />
<Font cssVariable="--font-atkinson" preload />
<!-- Canonical URL -->
<link rel="canonical" href={canonicalURL} />
<!-- Primary Meta Tags -->
<title>{title}</title>
<meta name="title" content={title} />
<meta name="description" content={description} />
<!-- Open Graph / Facebook -->
<meta property="og:type" content="website" />
<meta property="og:locale" content={locale === 'de' ? 'de_DE' : 'en_US'} />
<meta property="og:url" content={Astro.url} />
<meta property="og:title" content={title} />
<meta property="og:description" content={description} />
<meta property="og:image" content={new URL(image.src, Astro.url)} />
<!-- Twitter -->
<meta property="twitter:card" content="summary_large_image" />
<meta property="twitter:url" content={Astro.url} />
<meta property="twitter:title" content={title} />
<meta property="twitter:description" content={description} />
<meta property="twitter:image" content={new URL(image.src, Astro.url)} />