import type {
  BlogPostRow,
  ProjectRow,
  ServiceRow,
  SiteSettingsRow,
  FaqItem,
} from "@/lib/types";
import { siteConfig } from "@/lib/site-config";

function absUrl(url?: string | null): string | undefined {
  if (!url) return undefined;
  if (url.startsWith("http")) return url;
  return `${siteConfig.url}${url.startsWith("/") ? "" : "/"}${url}`;
}

export function JsonLd({ data }: { data: object }) {
  return (
    <script
      type="application/ld+json"
      dangerouslySetInnerHTML={{ __html: JSON.stringify(data) }}
    />
  );
}

export function OrganizationLd({
  settings,
}: {
  settings?: SiteSettingsRow | null;
}) {
  const phone = settings?.contact_phone_raw ?? siteConfig.contact.phoneRaw;
  const email = settings?.contact_email ?? siteConfig.contact.email;
  const address = settings?.contact_address ?? siteConfig.contact.address;
  const socials = [
    settings?.social_linkedin,
    settings?.social_instagram,
    settings?.social_twitter,
    settings?.social_facebook,
  ].filter(Boolean);

  const data: Record<string, unknown> = {
    "@context": "https://schema.org",
    "@type": "LocalBusiness",
    "@id": `${siteConfig.url}/#organization`,
    name: settings?.site_name ?? siteConfig.name,
    description: settings?.footer_tagline ?? siteConfig.tagline,
    url: siteConfig.url,
    logo: `${siteConfig.url}/logo.png`,
    image: `${siteConfig.url}/logo.png`,
    telephone: phone,
    email,
    address: {
      "@type": "PostalAddress",
      streetAddress: address,
      addressLocality: "İzmit",
      addressRegion: "Kocaeli",
      addressCountry: "TR",
    },
    areaServed: [
      { "@type": "City", name: "Kocaeli" },
      { "@type": "City", name: "İstanbul" },
      { "@type": "Country", name: "Türkiye" },
    ],
    sameAs: socials,
  };

  if (settings?.google_rating && settings?.google_review_count) {
    data.aggregateRating = {
      "@type": "AggregateRating",
      ratingValue: settings.google_rating,
      reviewCount: settings.google_review_count,
      bestRating: 5,
      worstRating: 1,
    };
  }

  return <JsonLd data={data} />;
}

export function ServiceLd({
  service,
  settings,
}: {
  service: ServiceRow;
  settings?: SiteSettingsRow | null;
}) {
  return (
    <JsonLd
      data={{
        "@context": "https://schema.org",
        "@type": "Service",
        serviceType: service.title,
        name: service.title,
        description: service.description,
        provider: {
          "@type": "LocalBusiness",
          name: settings?.site_name ?? siteConfig.name,
          url: siteConfig.url,
        },
        areaServed: { "@type": "Country", name: "Türkiye" },
        url: `${siteConfig.url}/hizmetler/${service.slug}`,
      }}
    />
  );
}

export function FaqLd({ items }: { items: FaqItem[] }) {
  if (items.length === 0) return null;
  return (
    <JsonLd
      data={{
        "@context": "https://schema.org",
        "@type": "FAQPage",
        mainEntity: items.map((it) => ({
          "@type": "Question",
          name: it.q,
          acceptedAnswer: {
            "@type": "Answer",
            text: it.a,
          },
        })),
      }}
    />
  );
}

export function BreadcrumbLd({
  items,
}: {
  items: { name: string; url: string }[];
}) {
  return (
    <JsonLd
      data={{
        "@context": "https://schema.org",
        "@type": "BreadcrumbList",
        itemListElement: items.map((it, i) => ({
          "@type": "ListItem",
          position: i + 1,
          name: it.name,
          item: it.url,
        })),
      }}
    />
  );
}

export function BlogPostingLd({
  post,
  settings,
}: {
  post: BlogPostRow;
  settings?: SiteSettingsRow | null;
}) {
  const image = absUrl(post.seo_image || post.cover_image) ?? `${siteConfig.url}/logo.png`;
  const url = `${siteConfig.url}/blog/${post.slug}`;
  const data: Record<string, unknown> = {
    "@context": "https://schema.org",
    "@type": "BlogPosting",
    headline: post.title,
    description: post.seo_description || post.excerpt || undefined,
    image,
    datePublished: post.published_at ?? post.$createdAt,
    dateModified: post.$updatedAt,
    author: {
      "@type": post.author ? "Person" : "Organization",
      name: post.author || settings?.site_name || siteConfig.name,
    },
    publisher: {
      "@type": "Organization",
      name: settings?.site_name ?? siteConfig.name,
      logo: {
        "@type": "ImageObject",
        url: `${siteConfig.url}/logo.png`,
      },
    },
    mainEntityOfPage: { "@type": "WebPage", "@id": url },
    url,
  };
  if (post.tags && post.tags.length > 0) {
    data.keywords = post.tags.join(", ");
  }
  return <JsonLd data={data} />;
}

export function ArticleLd({ post }: { post: ProjectRow }) {
  return (
    <JsonLd
      data={{
        "@context": "https://schema.org",
        "@type": "Article",
        headline: post.title,
        description: post.description,
        image: post.image_url,
        author: {
          "@type": "Organization",
          name: siteConfig.name,
          url: siteConfig.url,
        },
      }}
    />
  );
}