import { listDocuments, readDocument } from "@/lib/wiki";
import { ChatBubble } from "@/components/chat-bubble";
import { BatchProgressBanner } from "@/components/batch-progress-banner";
import { getLocale } from "@/components/locale-toggle";
import { summarize, pickPitch } from "@/lib/doc-summary";
import { DocListFilters } from "@/components/doc-list-filters";
import { SiteHeader } from "@/components/site-header";
import { HeroBanner } from "@/components/hero-banner";
import { FeaturedCase } from "@/components/featured-case";
import { PortalGrid, type PortalCounts } from "@/components/portal-grid";
import { GreatestHits } from "@/components/greatest-hits";
import { pgQuery } from "@/lib/retrieval/db";

// Read wiki/ filesystem + DB at request time, not build time.
export const dynamic = "force-dynamic";

async function loadCounts(documentsCount: number): Promise<PortalCounts> {
  const rows = await pgQuery<{ entity_class: string; c: string }>(
    `SELECT entity_class, COUNT(*)::text AS c
       FROM public.entities
      GROUP BY entity_class`,
  ).catch(() => [] as Array<{ entity_class: string; c: string }>);
  const by: Record<string, number> = {};
  for (const r of rows) by[r.entity_class] = Number(r.c);
  return {
    events:       by.event ?? 0,
    people:       by.person ?? 0,
    uap_objects:  by.uap_object ?? 0,
    locations:    by.location ?? 0,
    operations:   by.organization ?? 0,
    documents:    documentsCount,
  };
}

export default async function Home() {
  const ids = await listDocuments();
  const locale = (await getLocale()) === "en" ? "en" : "pt-br";

  const docs = await Promise.all(
    ids.map(async (id) => {
      const f = await readDocument(id);
      const summaryLang: "pt" | "en" = locale === "en" ? "en" : "pt";
      return {
        id,
        title: (f?.fm.canonical_title as string) ?? id,
        pages: (f?.fm.page_count as number) ?? 0,
        collection: (f?.fm.collection as string) ?? "uncategorized",
        classification: (f?.fm.highest_classification as string) ?? "—",
        summary: pickPitch(f?.fm as Record<string, unknown> | undefined, summaryLang) ?? (f?.body ? summarize(f.body, summaryLang) : ""),
      };
    }),
  );

  const counts = await loadCounts(ids.length);
  const totalPages = docs.reduce((s, d) => s + d.pages, 0);

  return (
    <div className="min-h-screen">
      <SiteHeader locale={locale} />

      <HeroBanner
        locale={locale}
        stats={{
          documents: counts.documents,
          events:    counts.events,
          people:    counts.people,
          uap_objects: counts.uap_objects,
        }}
        heroDocId="dow-uap-d017-general-correspondence-of-sandia"
        heroPage={1}
      />

      <FeaturedCase locale={locale} />

      <PortalGrid counts={counts} locale={locale} />

      <GreatestHits locale={locale} limit={9} />

      <BatchProgressBanner />

      {/* Document list — kept but reframed as "the primary record" */}
      <section className="mx-auto max-w-7xl px-4 md:px-8 py-12 md:py-16 border-t border-[rgba(224,192,128,0.10)]">
        <div className="text-[10px] font-mono uppercase tracking-[0.18em] text-[#5a6678] mb-2">
          {locale === "en" ? "// The primary record" : "// O registro primário"}
        </div>
        <h2 className="font-display text-2xl md:text-3xl text-[#e7ecf3] mb-1">
          {locale === "en" ? "Every document, indexed and searchable" : "Cada documento, indexado e buscável"}
        </h2>
        <p className="text-[#9aa6b8] text-sm mb-6">
          {locale === "en"
            ? `${ids.length} declassified files · ${totalPages.toLocaleString("pt-BR")} pages`
            : `${ids.length} arquivos desclassificados · ${totalPages.toLocaleString("pt-BR")} páginas`}
        </p>
        <DocListFilters docs={docs} />
      </section>

      <ChatBubble context={{}} />

      {/* JSON-LD: WebSite + ItemList of recent docs (helps GEO discovery) */}
      <script
        type="application/ld+json"
        dangerouslySetInnerHTML={{ __html: JSON.stringify({
          "@context": "https://schema.org",
          "@type": "WebSite",
          name: "The Disclosure Bureau",
          url: process.env.NEXT_PUBLIC_SITE_URL ?? "https://disclosure.top",
          description: locale === "en"
            ? `Public archive of ${counts.documents} declassified UAP/UFO documents from the US Department of War, with ${counts.events.toLocaleString()} catalogued events and ${counts.people.toLocaleString()} people.`
            : `Arquivo público de ${counts.documents} documentos UAP/UFO desclassificados do Departamento de Guerra dos EUA, com ${counts.events.toLocaleString()} eventos catalogados e ${counts.people.toLocaleString()} pessoas.`,
          potentialAction: {
            "@type": "SearchAction",
            target: `${process.env.NEXT_PUBLIC_SITE_URL ?? "https://disclosure.top"}/search?q={search_term_string}`,
            "query-input": "required name=search_term_string",
          },
        }) }}
      />
    </div>
  );
}
