import Link from "next/link";
import type { Metadata } from "next";
import { notFound } from "next/navigation";
import {
  getRelatedCases,
  getServicePage,
  servicePages,
  siteName,
  siteUrl,
} from "@/lib/site-content";

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

export function generateStaticParams() {
  return servicePages.map((service) => ({ slug: service.slug }));
}

export async function generateMetadata({
  params,
}: ServicePageProps): Promise<Metadata> {
  const { slug } = await params;
  const service = getServicePage(slug);

  if (!service) {
    return {
      title: `Servico nao encontrado | ${siteName}`,
    };
  }

  const url = `${siteUrl}/servicos/${service.slug}`;

  return {
    title: service.seoTitle,
    description: service.metaDescription,
    alternates: {
      canonical: url,
    },
    openGraph: {
      title: service.seoTitle,
      description: service.metaDescription,
      url,
      siteName,
      type: "article",
    },
    twitter: {
      card: "summary_large_image",
      title: service.seoTitle,
      description: service.metaDescription,
    },
  };
}

export default async function ServicePage({ params }: ServicePageProps) {
  const { slug } = await params;
  const service = getServicePage(slug);

  if (!service) {
    notFound();
  }

  const relatedCases = getRelatedCases(service.relatedCaseIds);
  const pageUrl = `${siteUrl}/servicos/${service.slug}`;

  const jsonLd = {
    "@context": "https://schema.org",
    "@graph": [
      {
        "@type": "Service",
        "@id": `${pageUrl}#service`,
        name: service.navLabel,
        description: service.metaDescription,
        serviceType: service.navLabel,
        provider: {
          "@type": "Person",
          name: "Evandro Fonseca Junior",
          url: siteUrl,
        },
        areaServed: [
          {
            "@type": "Country",
            name: "Brasil",
          },
          {
            "@type": "Place",
            name: "Remote worldwide",
          },
        ],
        url: pageUrl,
      },
      {
        "@type": "BreadcrumbList",
        itemListElement: [
          {
            "@type": "ListItem",
            position: 1,
            name: "Inicio",
            item: siteUrl,
          },
          {
            "@type": "ListItem",
            position: 2,
            name: "Servicos",
            item: `${siteUrl}/servicos`,
          },
          {
            "@type": "ListItem",
            position: 3,
            name: service.navLabel,
            item: pageUrl,
          },
        ],
      },
    ],
  };

  return (
    <main>
      <script
        type="application/ld+json"
        dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }}
      />

      <section className="ds-section ds-section-dark">
        <div className="ds-section-shell">
          <div className="max-w-[860px]">
            <p className="ds-eyebrow">{service.eyebrow}</p>
            <h1 className="ds-section-title max-w-[14ch] text-balance text-white">
              {service.headline}
            </h1>
            <p className="ds-copy max-w-[64ch] !text-[rgba(255,255,255,0.78)]">
              {service.intro}
            </p>
            <div className="mt-sp-8 flex flex-wrap gap-sp-3">
              <a href={service.ctaHref} className="ds-link ds-link-accent">
                {service.ctaLabel}
              </a>
              <Link href="/cases" className="ds-link ds-link-muted">
                Ver casos relacionados
              </Link>
            </div>
          </div>
        </div>
      </section>

      <section className="ds-section">
        <div className="ds-section-shell">
          <div className="ds-grid-2">
            <article className="ds-card">
              <div className="ds-kicker">Para quem faz sentido</div>
              <h2 className="ds-card-title">Contextos em que esse servico encaixa melhor</h2>
              <ul className="ds-list mt-sp-5 pl-[1.15rem]">
                {service.audience.map((item) => (
                  <li key={item}>{item}</li>
                ))}
              </ul>
            </article>

            <article className="ds-card">
              <div className="ds-kicker">O que muda</div>
              <h2 className="ds-card-title">Resultados que eu busco destravar</h2>
              <ul className="ds-list mt-sp-5 pl-[1.15rem]">
                {service.outcomes.map((item) => (
                  <li key={item}>{item}</li>
                ))}
              </ul>
            </article>
          </div>
        </div>
      </section>

      <section className="ds-section">
        <div className="ds-section-shell">
          <div className="ds-grid-2">
            <article className="ds-card">
              <div className="ds-kicker">Como eu estruturo</div>
              <h2 className="ds-card-title">Processo de trabalho</h2>
              <ol className="mt-sp-5 space-y-sp-4 text-[14px] leading-8 text-[var(--ink-80)]">
                {service.process.map((step, index) => (
                  <li key={step} className="border-t border-[var(--border)] pt-sp-4 first:border-t-0 first:pt-0">
                    <span className="mr-sp-3 inline-flex h-7 min-w-7 items-center justify-center rounded-full border border-[var(--border)] text-[11px] font-semibold text-[var(--meta)]">
                      {index + 1}
                    </span>
                    {step}
                  </li>
                ))}
              </ol>
            </article>

            <article className="ds-card">
              <div className="ds-kicker">Stack e repertorio</div>
              <h2 className="ds-card-title">Tecnologias e capacidades envolvidas</h2>
              <p className="ds-copy">
                A stack entra como meio para resolver o problema certo, com criterio de manutencao,
                observabilidade e evolucao do produto.
              </p>
              <ul className="ds-tags">
                {service.stack.map((item) => (
                  <li key={item} className="ds-tag">
                    {item}
                  </li>
                ))}
              </ul>
            </article>
          </div>
        </div>
      </section>

      <section className="ds-section">
        <div className="ds-section-shell">
          <div className="ds-section-header">
            <div className="ds-section-meta">
              <p className="ds-eyebrow">Casos relacionados</p>
              <h2 className="ds-section-title">Projetos que reforcam esse tipo de entrega</h2>
              <p className="ds-section-description">
                Alguns exemplos de contexto tecnico em que esse servico se conecta a entregas reais.
              </p>
            </div>
          </div>

          <div className="ds-grid-2">
            {relatedCases.map((caseStudy) => (
              <article key={caseStudy.id} className="ds-card">
                <div className="ds-kicker">{caseStudy.title}</div>
                <h3 className="ds-card-title">{caseStudy.subtitle}</h3>
                <p className="ds-copy">{caseStudy.summary}</p>
                <p className="mt-sp-4 text-[13px] leading-7 text-[var(--meta)]">
                  {caseStudy.impact}
                </p>
                <ul className="ds-tags mt-sp-6">
                  {caseStudy.stack.map((item) => (
                    <li key={item} className="ds-tag">
                      {item}
                    </li>
                  ))}
                </ul>
                <div className="mt-sp-6 flex flex-wrap gap-sp-3">
                  {caseStudy.demoUrl ? (
                    <a href={caseStudy.demoUrl} className="ds-link ds-link-accent" target="_blank" rel="noreferrer">
                      Abrir projeto
                    </a>
                  ) : null}
                  {caseStudy.githubUrl ? (
                    <a href={caseStudy.githubUrl} className="ds-link ds-link-muted" target="_blank" rel="noreferrer">
                      Ver codigo
                    </a>
                  ) : null}
                </div>
              </article>
            ))}
          </div>
        </div>
      </section>

      <section className="ds-section ds-section-dark">
        <div className="ds-section-shell">
          <div className="ds-card border-white/10 bg-[rgba(255,255,255,0.03)]">
            <div className="ds-kicker">Proximo passo</div>
            <h2 className="ds-card-title text-white">
              Se esse servico parece aderente ao seu contexto, a conversa inicial ja pode ser objetiva.
            </h2>
            <p className="ds-copy !text-[rgba(255,255,255,0.76)]">
              Traga o sistema, o gargalo e o objetivo de negocio. Eu estruturo a leitura tecnica e
              indico o caminho mais seguro para avancar.
            </p>
            <div className="mt-sp-6 flex flex-wrap gap-sp-3">
              <a href={service.ctaHref} className="ds-link ds-link-accent">
                {service.ctaLabel}
              </a>
              <Link href="/servicos" className="ds-link ds-link-muted">
                Ver todos os servicos
              </Link>
            </div>
          </div>
        </div>
      </section>
    </main>
  );
}