import type { Metadata } from "next";
import Link from "next/link";
import { notFound } from "next/navigation";
import { Breadcrumb } from "@/app/components/Breadcrumb";
import {
  pageTop,
  primaryButton,
  secondaryButtonDark,
} from "@/app/components/button-styles";
import WhatsAppLink from "@/app/components/WhatsAppLink";
import { safeJsonLd } from "@/lib/jsonld";
import { buildBreadcrumbList, buildPageSocialMetadata } from "@/lib/seo";
import { caseStudies, isClientCase, siteUrl } from "@/lib/site-content";
import { CaseMediaSection } from "../_components/CaseMediaSection";
import { CaseRelatedServices } from "../_components/CaseRelatedServices";
import { CaseResultSection } from "../_components/CaseResultSection";

interface CasePageProps {
  params: Promise<{ slug: string }>;
}

export function generateStaticParams() {
  return caseStudies.map((caseStudy) => ({ slug: caseStudy.id }));
}

export async function generateMetadata({
  params,
}: CasePageProps): Promise<Metadata> {
  const { slug } = await params;
  const caseStudy = caseStudies.find((item) => item.id === slug);

  if (!caseStudy) return { title: "Case não encontrado" };

  const url = `${siteUrl}/cases/${caseStudy.id}`;
  const title = `${caseStudy.title}: ${caseStudy.subtitle}`;
  return {
    title,
    description: caseStudy.summary,
    ...buildPageSocialMetadata({
      url,
      title,
      description: caseStudy.summary,
      type: "article",
    }),
  };
}

export default async function CasePage({ params }: CasePageProps) {
  const { slug } = await params;
  const caseStudy = caseStudies.find((item) => item.id === slug);
  if (!caseStudy) notFound();

  const pageUrl = `${siteUrl}/cases/${caseStudy.id}`;
  const isClient = isClientCase(caseStudy);
  const jsonLd = {
    "@context": "https://schema.org",
    "@graph": [
      buildBreadcrumbList(pageUrl, [
        ["Início", siteUrl],
        ["Cases", `${siteUrl}/cases`],
        [caseStudy.title, pageUrl],
      ] as const),
    ],
  };

  return (
    <main>
      <script type="application/ld+json">{safeJsonLd(jsonLd)}</script>
      <article>
        <section className={`ds-section ds-section-dark ${pageTop}`}>
          <div className="ds-section-shell max-w-[960px]">
            <Breadcrumb
              items={[
                { label: "Início", href: "/" },
                { label: "Cases", href: "/cases" },
                { label: caseStudy.title, href: `/cases/${caseStudy.id}` },
              ]}
            />
            <p className="ds-eyebrow">
              {isClient ? "Case de cliente" : "Projeto de laboratório"} ·{" "}
              {caseStudy.title}
            </p>
            <h1 className="ds-section-title text-balance text-white">
              {caseStudy.headline}
            </h1>
            <p className="ds-copy max-w-[68ch] !text-[rgba(255,255,255,.78)]">
              {caseStudy.summary}
            </p>
          </div>
        </section>

        <section className="ds-section" aria-labelledby="case-context">
          <div className="ds-section-shell max-w-[960px]">
            <div className="ds-grid-2 items-start">
              <div>
                <h2 id="case-context" className="ds-card-title !mt-0">
                  {isClient
                    ? "O cliente e o contexto"
                    : "O contexto do projeto"}
                </h2>
                <p className="ds-copy">{caseStudy.context}</p>
                {caseStudy.role ? (
                  <p className="ds-copy">
                    <strong className="font-semibold text-[var(--ink)]">
                      Minha participação:
                    </strong>{" "}
                    {caseStudy.role}
                  </p>
                ) : null}
              </div>
              <div>
                <h2 id="case-problem" className="ds-card-title !mt-0">
                  O problema
                </h2>
                <p className="ds-copy">{caseStudy.problem}</p>
              </div>
            </div>
          </div>
        </section>

        <section className="ds-section" aria-labelledby="case-done">
          <div className="ds-section-shell max-w-[960px]">
            <h2 id="case-done" className="ds-card-title !mt-0">
              O que foi feito
            </h2>
            <ul className="ds-list space-y-sp-3 pl-[1.15rem]">
              {caseStudy.deliveries.map((delivery) => (
                <li key={delivery}>{delivery}</li>
              ))}
            </ul>
          </div>
        </section>

        <CaseMediaSection caseStudy={caseStudy} />

        <CaseResultSection result={caseStudy.result} />

        <section
          className="ds-section ds-section-dark"
          aria-labelledby="case-contact"
        >
          <div className="ds-section-shell max-w-[960px]">
            <h2 id="case-contact" className="ds-card-title !mt-0 text-white">
              Quer um projeto parecido com este?
            </h2>
            <p className="ds-copy max-w-[60ch]">
              Conte o que você precisa. A conversa começa direto no WhatsApp,
              sem formulário.
            </p>
            <div className="mt-sp-6 flex flex-wrap items-center gap-sp-3">
              <WhatsAppLink
                service={`um projeto parecido com o da ${caseStudy.title}`}
                placement="case_detail"
                className={primaryButton}
              >
                Conversar sobre um projeto parecido
              </WhatsAppLink>
              <Link href="/cases" className={secondaryButtonDark}>
                Ver outros cases
              </Link>
            </div>
            <CaseRelatedServices caseId={caseStudy.id} />
          </div>
        </section>

        <section className="ds-section" aria-label="Detalhes técnicos">
          <div className="ds-section-shell max-w-[960px]">
            <details className="border border-[var(--border)] bg-white/70 p-sp-5 md:p-sp-6">
              <summary className="cursor-pointer py-sp-2 text-base font-semibold leading-relaxed focus-visible:outline-2 focus-visible:outline-offset-4 focus-visible:outline-[var(--ink)]">
                Detalhes técnicos
              </summary>
              <div className="max-w-[80ch]">
                <p className="ds-kicker mt-sp-5">Tecnologias</p>
                <ul
                  className="ds-tags !mt-sp-3 !pt-0"
                  aria-label="Tecnologias do projeto"
                >
                  {caseStudy.stack.map((item) => (
                    <li key={item} className="ds-tag !whitespace-normal">
                      {item}
                    </li>
                  ))}
                </ul>
                <p className="ds-kicker mt-sp-6">Decisões técnicas</p>
                <ul className="ds-list !mt-sp-3 space-y-sp-2">
                  {caseStudy.decisions.map((decision) => (
                    <li key={decision}>{decision}</li>
                  ))}
                </ul>
              </div>
            </details>
          </div>
        </section>
      </article>
    </main>
  );
}