import { fireEvent, render, screen, within } from "@testing-library/react";
import { setNavigation } from "@/__mocks__/next/navigation";
import {
  buttonLabels,
  caseStudies,
  clientCasesForListing,
  getRelatedServices,
  siteUrl,
} from "@/lib/site-content";
import { similarProjectSubject } from "@/lib/whatsapp";
import CasesPage from "../page";
import CasePage, { generateMetadata, generateStaticParams } from "./page";

beforeEach(() => {
  setNavigation({ pathname: "/cases" });
});

const clientCaseIds = [
  "sev-modaintima",
  "lavacao-047",
  "sc-plus",
  "as-servicos",
];
const labCaseIds = [
  "nutriscan",
  "twins-lab",
  "reddit-explorer",
  "gcc-installer",
];
const publicCaseIds = [...clientCaseIds, ...labCaseIds];

function getCase(id: string) {
  const caseStudy = caseStudies.find((item) => item.id === id);
  if (!caseStudy) throw new Error(`Missing case ${id}`);
  return caseStudy;
}

async function renderCase(id: string) {
  const ui = await CasePage({ params: Promise.resolve({ slug: id }) });
  return render(ui);
}

function isBefore(first: Element, second: Element) {
  return Boolean(
    first.compareDocumentPosition(second) & Node.DOCUMENT_POSITION_FOLLOWING,
  );
}

function readJsonLdEntities(container: HTMLElement): Record<string, unknown>[] {
  const scripts = container.querySelectorAll<HTMLScriptElement>(
    'script[type="application/ld+json"]',
  );
  if (scripts.length === 0) throw new Error("Missing JSON-LD");

  return Array.from(scripts).flatMap((script) => {
    if (!script.textContent) throw new Error("Empty JSON-LD");
    const value = JSON.parse(script.textContent) as Record<string, unknown>;
    return Array.isArray(value["@graph"]) ? value["@graph"] : [value];
  });
}

/**
 * Nenhum link para /#contact nem para o GitHub; o contato é o WhatsApp com o contexto do case, com o mesmo rótulo
 * ("Falar sobre meu projeto") no case de cliente e no de laboratório. A mensagem é a mesma frase nos dois, a do cabeçalho:
 * `similarProjectSubject(título)`. Um botão só por página (o do fecho): sem dois "Falar sobre meu projeto" seguidos.
 */
function expectContactAndNoDeadLinks(caseStudy: { id: string; title: string }) {
  const hrefs = screen
    .getAllByRole("link")
    .map((link) => link.getAttribute("href") ?? "");
  expect(hrefs).not.toContain("/#contact");
  expect(hrefs.some((href) => /github/i.test(href))).toBe(false);

  const ctas = screen.getAllByRole("link", { name: buttonLabels.contact });
  expect(ctas).toHaveLength(1);
  for (const cta of ctas) {
    const destination = new URL(cta.getAttribute("href") ?? "");
    expect(destination.origin).toBe("https://wa.me");
    expect(destination.searchParams.get("text")).toContain(
      similarProjectSubject(caseStudy.title),
    );
    expect(cta).toHaveAttribute("target", "_blank");
    expect(cta).toHaveAttribute("rel", expect.stringContaining("noopener"));
    // limão preenchido só no contato: o botão de play e os demais não o usam
    expect(cta.className).toContain("bg-[var(--slash)]");
  }
}

it("exposes the eight public cases, the two new client cases among them", async () => {
  const staticSlugs = generateStaticParams().map(({ slug }) => slug);
  expect(staticSlugs).toHaveLength(8);
  expect(new Set(staticSlugs).size).toBe(8);
  expect([...staticSlugs].sort()).toEqual([...publicCaseIds].sort());
  expect(staticSlugs).toContain("sev-modaintima");
  expect(staticSlugs).toContain("lavacao-047");

  for (const id of ["sev-modaintima", "lavacao-047", "as-servicos"]) {
    const caseStudy = getCase(id);
    const url = `${siteUrl}/cases/${caseStudy.id}`;
    const { metaTitle: title, metaDescription: description } = caseStudy;
    const metadata = await generateMetadata({
      params: Promise.resolve({ slug: caseStudy.id }),
    });
    expect(metadata).toMatchObject({
      title,
      description,
      alternates: { canonical: url },
      openGraph: { title, description, url },
      twitter: { title, description },
    });
    expect(metadata).not.toHaveProperty("keywords");
  }
});

it("renders a client case in the sales order, with media, contact and collapsed technical details", async () => {
  const caseStudy = getCase("sev-modaintima");
  const { container } = await renderCase(caseStudy.id);

  const heading = screen.getByRole("heading", { level: 1 });
  expect(heading).toHaveTextContent(caseStudy.headline);
  expect(isBefore(heading, screen.getByText(caseStudy.summary))).toBe(true);
  expect(screen.getByText(/Case de cliente/)).toBeVisible();

  const sectionNames = [
    "O cliente e o contexto",
    "O problema",
    "O que foi feito",
    "Como ficou",
    "O que o cliente passou a poder fazer",
    "Quer um projeto parecido com este?",
  ];
  const sectionHeadings = sectionNames.map((name) =>
    screen.getByRole("heading", { level: 2, name }),
  );
  for (let index = 1; index < sectionHeadings.length; index += 1) {
    expect(isBefore(sectionHeadings[index - 1], sectionHeadings[index])).toBe(
      true,
    );
  }
  expect(isBefore(heading, sectionHeadings[0])).toBe(true);

  expect(screen.getByText(caseStudy.context)).toBeVisible();
  expect(screen.getByText(caseStudy.problem)).toBeVisible();
  for (const delivery of caseStudy.deliveries) {
    expect(screen.getByText(delivery)).toBeVisible();
  }

  // sem dado real, não há seção de resultado
  expect(screen.queryByRole("heading", { name: "Resultado" })).toBeNull();

  // mídia: o pôster do computador e do celular com um botão de play; nenhum vídeo parado com controles
  expect(container.querySelector("video")).toBeNull();
  const desktopPlay = screen.getByRole("button", {
    name: `Reproduzir o vídeo do site ${caseStudy.title} no computador`,
  });
  const mobilePlay = screen.getByRole("button", {
    name: `Reproduzir o vídeo do site ${caseStudy.title} no celular`,
  });
  const mediaSection = screen
    .getByRole("heading", { level: 2, name: "Como ficou" })
    .closest("section");
  expect(mediaSection?.querySelector(".ds-bframe")).toContainElement(
    desktopPlay,
  );
  expect(mediaSection?.querySelector(".ds-phone")).toContainElement(mobilePlay);
  expect(
    screen.getByRole("link", { name: `Abrir o site ${caseStudy.title}` }),
  ).toHaveAttribute("href", caseStudy.demoUrl);

  // um botão de contato só, no fecho: as capacidades (logo depois de "Como ficou") não repetem o botão
  expectContactAndNoDeadLinks(caseStudy);
  const capabilitiesSection = sectionHeadings[4].closest("section");
  expect(
    within(capabilitiesSection as HTMLElement).queryByRole("link", {
      name: buttonLabels.contact,
    }),
  ).toBeNull();
  const closingSection = sectionHeadings[5].closest("section");
  expect(closingSection).toContainElement(
    within(closingSection as HTMLElement).getByRole("link", {
      name: buttonLabels.contact,
    }),
  );
  for (const capability of caseStudy.capabilities ?? []) {
    expect(
      within(capabilitiesSection as HTMLElement).getByText(capability),
    ).toBeVisible();
  }

  // detalhes técnicos: recolhidos, junto do conteúdo (logo depois do que foi feito), não numa faixa à parte
  const details = container.querySelector("details");
  if (!details) throw new Error("Missing technical details");
  expect(details).not.toHaveAttribute("open");
  expect(within(details).getByText("Detalhes técnicos")).toBeVisible();
  for (const technology of caseStudy.stack) {
    expect(within(details).getByText(technology)).not.toBeVisible();
  }
  for (const decision of caseStudy.decisions) {
    expect(within(details).getByText(decision)).not.toBeVisible();
  }
  const doneSection = sectionHeadings[2].closest("section");
  expect(doneSection).toContainElement(details);
  expect(isBefore(screen.getByText(caseStudy.deliveries[0]), details)).toBe(
    true,
  );
  expect(isBefore(details, sectionHeadings[3])).toBe(true);
  expect(container.querySelectorAll("details")).toHaveLength(1);
  expect(
    container.querySelector("section[aria-label='Detalhes técnicos']"),
  ).toBeNull();

  // o que saiu: desafio verificável, limites da evidência, fontes e commits
  for (const name of [
    "Desafio verificável",
    "Decisões de implementação",
    "Limites desta evidência",
    "Fontes",
  ]) {
    expect(screen.queryByRole("heading", { name })).toBeNull();
  }
  expect(screen.queryByRole("link", { name: /^Fonte:/ })).toBeNull();
  expect(container.textContent).not.toMatch(/Commit:|[0-9a-f]{40}/);

  const graph = readJsonLdEntities(container);
  expect(graph.map((node) => node["@type"])).toEqual([
    "CreativeWork",
    "BreadcrumbList",
  ]);
  expect(JSON.stringify(graph)).not.toMatch(
    /Article|FAQPage|ProfessionalService|LocalBusiness/,
  );
  const breadcrumb = graph[1] as {
    itemListElement: Array<{
      "@type": string;
      position: number;
      name: string;
      item: string;
    }>;
  };
  const canonicalUrl = `${siteUrl}/cases/${caseStudy.id}`;
  expect(breadcrumb.itemListElement).toEqual([
    { "@type": "ListItem", position: 1, name: "Início", item: siteUrl },
    {
      "@type": "ListItem",
      position: 2,
      name: "Cases",
      item: `${siteUrl}/cases`,
    },
    {
      "@type": "ListItem",
      position: 3,
      name: caseStudy.title,
      item: canonicalUrl,
    },
  ]);

  const visibleBreadcrumb = screen.getByRole("navigation", {
    name: "Trilha de navegação",
  });
  expect(
    within(visibleBreadcrumb)
      .getAllByRole("link")
      .map((link) => ({
        name: link.textContent,
        href: link.getAttribute("href"),
        current: link.getAttribute("aria-current"),
      })),
  ).toEqual([
    { name: "Início", href: "/", current: null },
    { name: "Cases", href: "/cases", current: null },
    {
      name: caseStudy.title,
      href: `/cases/${caseStudy.id}`,
      current: "page",
    },
  ]);
});

it("renders the two new client cases from the portfolio data", async () => {
  for (const id of ["sev-modaintima", "lavacao-047"]) {
    const caseStudy = getCase(id);
    const { unmount } = await renderCase(id);

    expect(screen.getByRole("heading", { level: 1 })).toHaveTextContent(
      caseStudy.headline,
    );
    expect(
      screen.getByRole("link", { name: `Abrir o site ${caseStudy.title}` }),
    ).toHaveAttribute("href", caseStudy.demoUrl);
    // um botão de contato só, no fecho, mesmo com "Como ficou" na página
    expectContactAndNoDeadLinks(caseStudy);
    unmount();
  }
});

it("labels a laboratory case, skips the media block and shows its service as a card", async () => {
  const caseStudy = getCase("twins-lab");
  const { container } = await renderCase(caseStudy.id);

  expect(screen.getByText(/Projeto de laboratório/)).toBeVisible();
  expect(
    screen.getByRole("heading", { level: 2, name: "O contexto do projeto" }),
  ).toBeVisible();
  expect(screen.queryByRole("heading", { name: "Como ficou" })).toBeNull();
  expect(container.querySelector("video")).toBeNull();
  expect(container.querySelector(".ds-bframe")).toBeNull();
  expect(screen.queryByRole("link", { name: /^Abrir o site/ })).toBeNull();
  expect(screen.queryByText(/indispon/i)).toBeNull();

  const relatedLinks = screen.getAllByRole("link", {
    name: /^Ver o serviço:/,
  });
  expect(relatedLinks.map((link) => link.getAttribute("href"))).toEqual(
    getRelatedServices(caseStudy.id).map(({ slug }) => `/servicos/${slug}`),
  );
  expect(relatedLinks).toHaveLength(1);
  expectContactAndNoDeadLinks(caseStudy);
});

it("turns the contact of a laboratory case into the 'Fale sobre o seu caso' invitation, with the same button label as a client case", async () => {
  for (const id of labCaseIds) {
    const { unmount } = await renderCase(id);

    expect(screen.queryByText("Quer um projeto parecido com este?")).toBeNull();
    expect(
      screen.queryByRole("link", {
        name: /Conversar sobre um projeto parecido|Tem um problema parecido/,
      }),
    ).toBeNull();
    expect(
      screen.getByRole("heading", { level: 2, name: "Fale sobre o seu caso" }),
    ).toBeVisible();
    // um botão só, com ou sem "Como ficou" (NutriScan tem)
    expectContactAndNoDeadLinks(getCase(id));
    // o laboratório não tem "o que o cliente passou a poder fazer"
    expect(
      screen.queryByRole("heading", {
        name: "O que o cliente passou a poder fazer",
      }),
    ).toBeNull();
    unmount();
  }
});

it("writes what the client can do now right after 'Como ficou', with no contact button of its own, for every client case", async () => {
  for (const id of clientCaseIds) {
    const caseStudy = getCase(id);
    const { unmount } = await renderCase(id);

    const media = screen.getByRole("heading", { level: 2, name: "Como ficou" });
    const capabilities = screen.getByRole("heading", {
      level: 2,
      name: "O que o cliente passou a poder fazer",
    });
    // a seção vem logo depois da mídia, sem outra seção no meio
    const mediaSection = media.closest("section");
    const capabilitiesSection = capabilities.closest("section");
    expect(mediaSection?.nextElementSibling).toBe(capabilitiesSection);
    const items = within(capabilitiesSection as HTMLElement)
      .getAllByRole("listitem")
      .map((item) => item.textContent);
    expect(items).toEqual(caseStudy.capabilities);
    expect(items.length).toBeGreaterThanOrEqual(2);
    expect(items.length).toBeLessThanOrEqual(3);
    // sem número inventado
    expect(items.join(" ")).not.toMatch(/\d/);
    // o único botão de contato é o do fecho, depois da lista: não há dois "Falar sobre meu projeto" seguidos
    expect(
      within(capabilitiesSection as HTMLElement).queryByRole("link", {
        name: buttonLabels.contact,
      }),
    ).toBeNull();
    const closingSection = screen
      .getByRole("heading", {
        level: 2,
        name: "Quer um projeto parecido com este?",
      })
      .closest("section");
    expect(capabilitiesSection?.nextElementSibling).toBe(closingSection);
    expect(
      within(closingSection as HTMLElement).getAllByRole("link", {
        name: buttonLabels.contact,
      }),
    ).toHaveLength(1);
    unmount();
  }

  // a frase do dono da Lavação 047 vem dos dados do projeto
  await renderCase("lavacao-047");
  expect(
    screen.getByText(
      "O dono muda preços, textos, fotos e o mapa sem pedir a ninguém, e a mudança aparece no site sem nova publicação.",
    ),
  ).toBeVisible();
});

it("shows the author's role and no site button for a client project without a public site", async () => {
  const caseStudy = getCase("as-servicos");
  expect(caseStudy.demoUrl).toBeNull();
  await renderCase(caseStudy.id);

  expect(screen.getByText("Minha participação:")).toBeVisible();
  expect(
    screen.getByText(caseStudy.role ?? "", { exact: false }),
  ).toBeVisible();
  expect(screen.queryByRole("link", { name: /^Abrir o site/ })).toBeNull();
  expect(screen.queryByText(/indispon/i)).toBeNull();
  // a capa continua nas molduras
  expect(
    screen.getByRole("button", {
      name: `Reproduzir o vídeo do site ${caseStudy.title} no computador`,
    }),
  ).toBeInTheDocument();
});

it("shows the result section only when the case has real data", async () => {
  const caseStudy = getCase("lavacao-047");
  const { unmount } = await renderCase(caseStudy.id);
  expect(screen.queryByRole("heading", { name: "Resultado" })).toBeNull();
  unmount();

  caseStudy.result = ["Dado real informado pelo cliente."];
  try {
    await renderCase(caseStudy.id);
    const heading = screen.getByRole("heading", {
      level: 2,
      name: "Resultado",
    });
    expect(screen.getByText("Dado real informado pelo cliente.")).toBeVisible();
    expect(
      isBefore(
        screen.getByRole("heading", { level: 2, name: "Como ficou" }),
        heading,
      ),
    ).toBe(true);
    expect(
      isBefore(
        heading,
        screen.getByRole("heading", {
          level: 2,
          name: "Quer um projeto parecido com este?",
        }),
      ),
    ).toBe(true);
  } finally {
    delete caseStudy.result;
  }
});

it("shows at most two related services, as cards under the contact button", async () => {
  // lavacao-047 tem três serviços ligados; só os dois primeiros viram cards
  const sev = getCase("lavacao-047");
  const all = getRelatedServices(sev.id);
  expect(all.length).toBeGreaterThan(2);
  const { unmount } = await renderCase(sev.id);

  const cards = screen.getAllByRole("link", { name: /^Ver o serviço:/ });
  expect(cards).toHaveLength(2);
  expect(cards.map((link) => link.getAttribute("href"))).toEqual(
    all.slice(0, 2).map(({ slug }) => `/servicos/${slug}`),
  );
  for (const link of cards) {
    const card = link.closest("article");
    expect(card).toHaveClass("ds-card");
    expect(
      within(card as HTMLElement).getByRole("heading", { level: 3 }),
    ).toBeVisible();
  }
  expect(
    screen.queryByRole("link", { name: /^Ver serviço relacionado:/ }),
  ).toBeNull();
  // o botão do fecho (o único) vem antes dos cartões
  const contact = screen.getByRole("link", { name: buttonLabels.contact });
  expect(isBefore(contact, cards[0])).toBe(true);
  unmount();

  // sc-plus e a SEV têm dois (a SEV liga à oferta de site e à de sistema); a AS Serviços, um
  for (const [id, expected] of [
    ["sc-plus", 2],
    ["as-servicos", 1],
    ["sev-modaintima", 2],
  ] as const) {
    const { unmount: unmountCase } = await renderCase(id);
    const links = screen.getAllByRole("link", { name: /^Ver o serviço:/ });
    expect(links).toHaveLength(expected);
    expect(links.map((link) => link.getAttribute("href"))).toEqual(
      getRelatedServices(id)
        .slice(0, 2)
        .map(({ slug }) => `/servicos/${slug}`),
    );
    expectContactAndNoDeadLinks(getCase(id));
    unmountCase();
  }
});

it("links the SEV case to the site offer and to the system offer, each by the name of the offer", async () => {
  await renderCase("sev-modaintima");

  const links = screen.getAllByRole("link", { name: /^Ver o serviço:/ });
  expect(links.map((link) => link.getAttribute("href"))).toEqual([
    "/servicos/criacao-de-sites",
    "/servicos/engenharia-de-software",
  ]);
  expect(links.map((link) => link.textContent)).toEqual([
    "Ver o serviço: Site que traz pedidos pelo WhatsApp",
    "Ver o serviço: Sistema para tirar a operação da planilha",
  ]);
});

it("writes the CreativeWork of a client case with creator, client and keywords", async () => {
  const caseStudy = getCase("lavacao-047");
  const { container } = await renderCase(caseStudy.id);

  const work = readJsonLdEntities(container).find(
    (node) => node["@type"] === "CreativeWork",
  );
  expect(work).toEqual({
    "@type": "CreativeWork",
    "@id": `${siteUrl}/cases/lavacao-047#creative-work`,
    name: "Lavação 047: Site e painel para lavação automotiva",
    description: caseStudy.metaDescription,
    url: `${siteUrl}/cases/lavacao-047`,
    image: `${siteUrl}/cases/lavacao-047/opengraph-image/lavacao-047`,
    inLanguage: "pt-BR",
    creator: { "@id": `${siteUrl}/#person` },
    sourceOrganization: {
      "@type": "Organization",
      name: "Lavação 047",
      url: "https://landing-page-lavacao047.vercel.app",
    },
    keywords: caseStudy.stack.join(", "),
  });
});

it("writes the CreativeWork of a laboratory case without a client", async () => {
  const caseStudy = getCase("twins-lab");
  const { container } = await renderCase(caseStudy.id);

  const work = readJsonLdEntities(container).find(
    (node) => node["@type"] === "CreativeWork",
  );
  expect(work).toMatchObject({
    name: "Twins Lab: Painel ao vivo de um reator simulado",
    url: `${siteUrl}/cases/twins-lab`,
    creator: { "@id": `${siteUrl}/#person` },
    keywords: "Next.js, TypeScript, NextAuth, MongoDB, SSE",
  });
  expect(work).not.toHaveProperty("sourceOrganization");
});

it("puts the project cover next to the title, and below it on a phone, in a browser frame", async () => {
  const caseStudy = getCase("sev-modaintima");
  const { container } = await renderCase(caseStudy.id);

  const hero = container.querySelector("section");
  if (!hero) throw new Error("Missing hero");
  const frame = hero.querySelector(".ds-bframe");
  if (!frame) throw new Error("Missing hero frame");
  expect(frame.querySelector("img")).toHaveAttribute(
    "alt",
    `Captura de tela do site ${caseStudy.title}`,
  );
  expect(frame.querySelector(".ds-bframe-url")).toHaveTextContent(
    "sevmodaintima.com.br",
  );
  // a capa abre a página: carrega antes das demais imagens
  expect(frame.querySelector("img")).not.toHaveAttribute("loading", "lazy");

  // ordem do documento (a do celular): título, mídia, resumo
  const heading = screen.getByRole("heading", { level: 1 });
  const summary = screen.getByText(caseStudy.summary);
  expect(hero).toContainElement(summary);
  expect(isBefore(heading, frame)).toBe(true);
  expect(isBefore(frame, summary)).toBe(true);
  // no computador: duas colunas, texto à esquerda e mídia à direita
  const grid = frame.closest(".grid");
  expect(grid?.className).toContain("lg:grid-cols-[");
  expect(frame.parentElement?.className).toContain("lg:col-start-2");
  expect(heading.parentElement?.className).toContain("lg:col-start-1");
});

it("keeps the hero in one column when the case has no capture", async () => {
  const { container } = await renderCase("twins-lab");

  const hero = container.querySelector("section");
  expect(hero?.querySelector(".ds-bframe")).toBeNull();
  expect(hero?.querySelector(".grid")).toBeNull();
});

it("shows the optional facts only when they are filled in", async () => {
  const caseStudy = getCase("lavacao-047");
  const empty = await renderCase(caseStudy.id);
  expect(screen.queryByRole("list", { name: "Fatos do projeto" })).toBeNull();
  empty.unmount();

  caseStudy.facts = ["Fato de teste um", "Fato de teste dois"];
  try {
    await renderCase(caseStudy.id);
    const list = screen.getByRole("list", { name: "Fatos do projeto" });
    expect(within(list).getAllByRole("listitem")).toHaveLength(2);
    expect(within(list).getByText("Fato de teste um")).toBeVisible();
    expect(isBefore(screen.getByText(caseStudy.summary), list)).toBe(true);
  } finally {
    delete caseStudy.facts;
  }
});

it("starts the video only when the visitor presses play, and moves focus to it", async () => {
  const caseStudy = getCase("sev-modaintima");
  const { container } = await renderCase(caseStudy.id);

  const play = screen.getByRole("button", {
    name: `Reproduzir o vídeo do site ${caseStudy.title} no computador`,
  });
  expect(play).toBeVisible();
  expect(play.className).not.toContain("--slash");
  expect(container.querySelector("video")).toBeNull();

  fireEvent.click(play);

  const video = screen.getByLabelText(
    `Vídeo do site ${caseStudy.title} no computador`,
  );
  expect(video.tagName).toBe("VIDEO");
  expect(video).toHaveAttribute(
    "poster",
    `/videos/${caseStudy.id}/desktop.webp`,
  );
  expect(video).toHaveAttribute("controls");
  expect(video).toHaveFocus();
  expect(
    video.querySelectorAll("source[src^='/videos/sev-modaintima/']"),
  ).toHaveLength(2);
  expect(video.closest(".ds-bframe")).not.toBeNull();
  expect(
    screen.queryByRole("button", {
      name: `Reproduzir o vídeo do site ${caseStudy.title} no computador`,
    }),
  ).toBeNull();
  // o celular continua com o pôster até a pessoa tocar nele
  expect(
    screen.getByRole("button", {
      name: `Reproduzir o vídeo do site ${caseStudy.title} no celular`,
    }),
  ).toBeVisible();
});

it("gives the case page the same shell as the home, with no narrow max-width", async () => {
  const { container } = await renderCase("sev-modaintima");
  for (const shell of container.querySelectorAll(".ds-section-shell")) {
    expect(shell.className).not.toMatch(/max-w-/);
  }
});

it("lists client cases with a cover first, then the laboratory, and keeps the schema aligned", () => {
  const { container } = render(<CasesPage />);
  const heading = screen.getByRole("heading", { level: 1 });
  expect(heading.nextElementSibling).toHaveTextContent(/Abra um case/);
  // o título e o subtítulo não repetem "Veja o que já"
  expect(heading.nextElementSibling).not.toHaveTextContent(/Veja o que já/);
  expect(container.textContent).not.toMatch(/Selected work/i);

  const clientHeading = screen.getByRole("heading", {
    level: 2,
    name: "Projetos de clientes",
  });
  const labHeading = screen.getByRole("heading", {
    level: 2,
    name: "Laboratório",
  });
  expect(isBefore(heading, clientHeading)).toBe(true);
  expect(isBefore(clientHeading, labHeading)).toBe(true);
  expect(screen.getByText(/Projetos pessoais e de estudo/)).toBeVisible();

  // cases de cliente, na ordem da vitrine (SEV primeiro): capa (pôster) em moldura de navegador e botão "Ver case" em contorno
  const listedIds = clientCasesForListing.map(({ id }) => id);
  expect([...listedIds].sort()).toEqual([...clientCaseIds].sort());
  expect(listedIds).toEqual([
    "sev-modaintima",
    "lavacao-047",
    "sc-plus",
    "as-servicos",
  ]);
  const clientLinks = listedIds.map((id) => {
    const card = container
      .querySelector(`a[href="/cases/${id}"]`)
      ?.closest("article");
    if (!card) throw new Error(`Missing client card ${id}`);
    expect(isBefore(clientHeading, card)).toBe(true);
    expect(isBefore(card, labHeading)).toBe(true);
    expect(card.querySelector(".ds-bframe img")).toHaveAttribute(
      "alt",
      `Captura de tela do site ${getCase(id).title}`,
    );
    return within(card).getByRole("link", {
      name: `${buttonLabels.case} ${getCase(id).title}`,
    });
  });
  expect(clientLinks.map((link) => link.getAttribute("href"))).toEqual(
    listedIds.map((id) => `/cases/${id}`),
  );

  // laboratório: lista compacta, uma linha por projeto (nome, o que é, "Projeto próprio" e o link), sem capa nem cartão
  const labLinks = within(
    labHeading.closest("section") as HTMLElement,
  ).getAllByRole("link", { name: /^Ver case / });
  expect(labLinks.map((link) => link.getAttribute("href"))).toEqual(
    labCaseIds.map((id) => `/cases/${id}`),
  );
  const labList = labLinks[0].closest("ul");
  expect(labList?.querySelectorAll(":scope > li")).toHaveLength(
    labCaseIds.length,
  );
  expect(labList?.querySelector("article, .ds-card, .ds-bframe")).toBeNull();
  labLinks.forEach((link, index) => {
    const row = link.closest("li");
    const caseStudy = getCase(labCaseIds[index]);
    expect(isBefore(labHeading, link)).toBe(true);
    expect(link).toHaveAccessibleName(`Ver case ${caseStudy.title}`);
    expect(
      within(row as HTMLElement).getByRole("heading", {
        level: 3,
        name: caseStudy.title,
      }),
    ).toBeVisible();
    expect(
      within(row as HTMLElement).getByText(caseStudy.subtitle),
    ).toBeVisible();
    expect(
      within(row as HTMLElement).getByText("Projeto próprio"),
    ).toBeVisible();
    // sem o resumo longo do cartão antigo
    expect(row).not.toHaveTextContent(caseStudy.summary);
  });

  // contato pelo WhatsApp, sem /#contact nem GitHub
  const hrefs = screen
    .getAllByRole("link")
    .map((link) => link.getAttribute("href") ?? "");
  expect(hrefs).not.toContain("/#contact");
  expect(hrefs.some((href) => /github/i.test(href))).toBe(false);
  expect(hrefs).toContain("/servicos");
  const cta = screen.getByRole("link", { name: buttonLabels.contact });
  expect(new URL(cta.getAttribute("href") ?? "").origin).toBe("https://wa.me");

  const visibleBreadcrumb = screen.getByRole("navigation", {
    name: "Trilha de navegação",
  });
  expect(
    within(visibleBreadcrumb)
      .getAllByRole("link")
      .map((link) => [link.textContent, link.getAttribute("href")]),
  ).toEqual([
    ["Início", "/"],
    ["Cases", "/cases"],
  ]);

  const graph = readJsonLdEntities(container);
  expect(graph.map((node) => node["@type"])).toEqual([
    "CollectionPage",
    "ItemList",
    "BreadcrumbList",
  ]);
  const itemList = graph[1] as {
    itemListElement: Array<{
      "@type": string;
      position: number;
      name: string;
      url: string;
    }>;
  };
  const visibleItems = [...clientLinks, ...labLinks].map((link, index) => {
    const href = link.getAttribute("href");
    // cartão do cliente ou linha da lista do laboratório
    const card = link.closest("article, li");
    if (!card) throw new Error(`Missing visible card for ${href}`);
    const expected = getCase((href ?? "").replace("/cases/", ""));
    expect(card).toHaveTextContent(expected.title);
    return {
      "@type": "ListItem",
      position: index + 1,
      name: expected.title,
      url: `${siteUrl}${href}`,
    };
  });
  expect(itemList.itemListElement).toEqual(visibleItems);
});