---
/**
* SEO.astro — Reusable tags for OG, Twitter, canonical, robots.
*
* Place inside . All props are optional except title/description
* (which the parent layout owns). Designed to be rendered once per page
* via BaseLayout.astro.
*/
interface Props {
title: string;
description: string;
/** Path-only or absolute URL. Defaults to /images/og/default-og.jpg */
ogImage?: string;
/** Override canonical URL. Default: current pathname */
canonical?: string;
/** og:type — "website" for pages, "article" for blog */
ogType?: 'website' | 'article' | 'product';
/** Article published time (ISO) — only used when ogType=article */
publishedTime?: string;
/** Article author — only used when ogType=article */
author?: string;
/** Indexing policy. Default: 'index, follow' */
robots?: string;
/** Override site_name for og:site_name */
siteName?: string;
/** Locale tag — default th_TH */
locale?: string;
}
const {
title,
description,
ogImage = '/images/og/default-og.jpg',
canonical,
ogType = 'website',
publishedTime,
author,
robots = 'index, follow',
siteName = 'ดีล พลัส เทค',
locale = 'th_TH',
} = Astro.props;
const siteUrl = Astro.site ?? new URL(Astro.url.origin);
const origin = siteUrl.origin;
// Build absolute URL for ogImage (handle both path-only and full URL inputs)
const isAbsolute = /^https?:\/\//.test(ogImage);
const fullOgImage = isAbsolute ? ogImage : new URL(ogImage, origin).toString();
// Canonical: explicit override OR current path
const canonicalPath = canonical ?? Astro.url.pathname;
const fullCanonical = new URL(canonicalPath, origin).toString();
---
{ogType === 'article' && publishedTime && (
)}
{ogType === 'article' && author && (
)}