import type { ISEOMeta } from '@types';

export function useDefaultSeo(meta: ISEOMeta | null) {
	if (meta === null) return meta;

	const norm = (s?: string) => (s ?? '').toString().trim();

	return {
		title: norm(meta.title),
		description: norm(meta.description),
		canonical: norm(meta.canonical),
		robots: norm(meta.robots || 'index,follow'),
		og: {
			title: norm(meta.openGraph?.title || meta.title),
			description: norm(meta.openGraph?.description || meta.description),
			type: norm(meta.openGraph?.type || 'product'),
			url: norm(meta.openGraph?.url || meta.canonical),
			image: norm(meta.openGraph?.image),
		},
		twitter: {
			card: norm(meta.twitter?.card || 'summary_large_image'),
			title: norm(meta.twitter?.title || meta.title),
			description: norm(meta.twitter?.description || meta.description),
		},
		jsonLd: Array.isArray(meta.jsonLd) ? meta.jsonLd : [],
	};
}