import { absUrl as abs, siteConfig as s } from "../config/site";

type Json = Record<string, unknown>;

const clean = <T extends object>(o: T): Json =>
  JSON.parse(
    JSON.stringify(o, (_, v) =>
      v === "" || (Array.isArray(v) && !v.length) ? undefined : v,
    ),
  );

export const organizationSchema = () =>
  clean({
    "@context": "https://schema.org",
    "@type": "LocalBusiness",
    "@id": `${s.url}/#organization`,
    name: s.name,
    alternateName: s.nameEn,
    url: abs("/"),
    logo: abs(s.logo),
    image: abs(s.logo),
    description: s.description,
    email: s.contact.email,
    telephone: s.contact.phone,
    foundingDate: s.foundingDate,
    areaServed: s.areaServed,
    address: {
      "@type": "PostalAddress",
      streetAddress: s.contact.address.streetAddress,
      addressLocality: s.contact.address.addressLocality,
      addressCountry: s.contact.address.addressCountry,
    },
    openingHoursSpecification: {
      "@type": "OpeningHoursSpecification",
      dayOfWeek: s.openingHours.days,
      opens: s.openingHours.opens,
      closes: s.openingHours.closes,
    },
    sameAs: s.socials,
  });

export const websiteSchema = () => ({
  "@context": "https://schema.org",
  "@type": "WebSite",
  "@id": `${s.url}/#website`,
  url: abs("/"),
  name: s.name,
  inLanguage: s.lang,
  publisher: { "@id": `${s.url}/#organization` },
});

export const serviceSchema = (opts: {
  name: string;
  description: string;
  areaServed?: string;
}) =>
  clean({
    "@context": "https://schema.org",
    "@type": "Service",
    name: opts.name,
    description: opts.description,
    areaServed: opts.areaServed ?? s.areaServed,
    provider: { "@id": `${s.url}/#organization` },
  });

export const categoryPageSchema = (category: {
  name: string;
  en: string;
  fullDesc: string;
  slug: string;
  products: { name: string; desc: string }[];
}) =>
  clean({
    "@context": "https://schema.org",
    "@type": "CollectionPage",
    "@id": `${s.url}/categories/${category.slug}`,
    name: category.name,
    description: category.fullDesc,
    url: abs(`/categories/${category.slug}`),
    isPartOf: { "@id": `${s.url}/#website` },
    provider: { "@id": `${s.url}/#organization` },
    mainEntity: {
      "@type": "ItemList",
      numberOfItems: category.products.length,
      itemListElement: category.products.map((p, i) => ({
        "@type": "ListItem",
        position: i + 1,
        item: {
          "@type": "Product",
          name: p.name,
          description: p.desc,
        },
      })),
    },
  });

/** Serialize JSON-LD safely for an inline <script> (escape "<"). */
export const toJsonLd = (data: Json) =>
  JSON.stringify(data).replace(/</g, "\\u003c");