import { fireEvent, render, screen } from "@testing-library/react";

import Hero from "./Hero";
import { HERO_CAPTIONS } from "./hero-captions";

// o Link do Next, trocado por um <a> que mostra o `prefetch` recebido: HoverPrefetchLink começa em false
jest.mock("next/link", () => ({
  __esModule: true,
  default: ({
    children,
    prefetch,
    ...props
  }: { children?: React.ReactNode; prefetch?: boolean | null } & Record<
    string,
    unknown
  >) => (
    <a data-prefetch={String(prefetch)} {...props}>
      {children}
    </a>
  ),
}));

const clients = [
  { id: "sev-modaintima", name: "SEV Moda Íntima" },
  { id: "lavacao-047", name: "Lavação 047" },
  { id: "sc-plus", name: "SC Plus Aquicultura" },
  { id: "as-servicos", name: "AS Serviços" },
];

describe("Hero", () => {
  beforeEach(() => {
    jest.spyOn(window, "open").mockImplementation(() => null);
  });

  afterEach(() => {
    jest.restoreAllMocks();
  });

  it("sends the main button to the contact form, keeps 'Ver projetos entregues' secondary and opens WhatsApp from a quiet link after them", () => {
    render(<Hero />);

    const contactLink = screen.getByRole("link", {
      name: /falar sobre meu projeto/i,
    });
    expect(contactLink).toHaveAccessibleName("Falar sobre meu projeto");
    expect(contactLink).toHaveAttribute("href", "/#contact-form");
    expect(contactLink).not.toHaveAttribute("target");
    // o botão primário é o único com o fundo limão (e o bloco cor de papel no ponteiro); o secundário é contorno
    expect(contactLink.className).toContain("bg-[var(--slash)]");
    expect(contactLink).toHaveClass("cv-fill");
    expect(contactLink.className).not.toMatch(/hover:bg-/);
    const projects = screen.getByRole("link", { name: /ver projetos/i });
    expect(projects).toHaveAttribute("href", "/cases");
    expect(projects.className).not.toContain("bg-[var(--slash)]");
    expect(projects).toHaveClass("cv-outline-dark");
    expect(projects).not.toHaveAttribute("target");

    const whatsApp = screen.getByRole("link", { name: "Chamar no WhatsApp" });
    expect(whatsApp.getAttribute("href")).toMatch(/^https:\/\/wa\.me\/\d+\?/);
    expect(whatsApp).toHaveAttribute("target", "_blank");
    expect(whatsApp).toHaveAttribute("rel", "noopener noreferrer");
    const text = new URL(whatsApp.getAttribute("href") ?? "").searchParams.get(
      "text",
    );
    expect(text).toBe(
      "Olá, Evandro! Quero conversar sobre um site ou sistema para a minha empresa. Contato iniciado pelo site evandro.dev.br.",
    );
    expect(whatsApp.className).not.toContain("bg-[var(--slash)]");
    expect(whatsApp.querySelector("svg")).toHaveAttribute(
      "aria-hidden",
      "true",
    );
    // a ordem do Tab: os dois botões e depois o link
    expect(
      contactLink.compareDocumentPosition(whatsApp) &
        Node.DOCUMENT_POSITION_FOLLOWING,
    ).toBeTruthy();
    expect(
      projects.compareDocumentPosition(whatsApp) &
        Node.DOCUMENT_POSITION_FOLLOWING,
    ).toBeTruthy();
  });

  it("keeps the headline as one readable sentence despite the per-word animation", () => {
    render(<Hero />);

    expect(screen.getByRole("heading", { level: 1 })).toHaveTextContent(
      "Sites e sistemas sob medida para o jeito que a sua empresa trabalha.",
    );
  });

  it("highlights only 'sob medida' in lime, kept on one line under one continuous marker block", () => {
    render(<Hero />);

    const heading = screen.getByRole("heading", { level: 1 });
    const highlighted = Array.from(
      heading.querySelectorAll<HTMLElement>(".hero-word"),
    ).filter((word) => word.className.includes("text-[var(--slash)]"));
    expect(highlighted.map((word) => word.textContent)).toEqual([
      "sob",
      "medida",
    ]);
    // um trecho só, que não quebra entre as duas palavras e leva o marcador; cada palavra mantém a sua entrada
    const marks = heading.querySelectorAll(".hero-mark");
    expect(marks).toHaveLength(1);
    expect(marks[0]).toHaveClass("whitespace-nowrap");
    expect(marks[0].textContent).toBe("sob medida");
    for (const word of highlighted) expect(marks[0]).toContainElement(word);
  });

  it("keeps the single LinkedIn profile and the e-mail, with no GitHub link", () => {
    render(<Hero />);

    expect(screen.getByRole("link", { name: "LinkedIn" })).toHaveAttribute(
      "href",
      "https://www.linkedin.com/in/evandrodevbr/",
    );
    expect(screen.getByRole("link", { name: "Email" })).toHaveAttribute(
      "href",
      "mailto:evandrofonsecajunior@gmail.com",
    );
    const linkedin = screen.getByRole("link", { name: "LinkedIn" });
    expect(linkedin).toHaveAttribute("target", "_blank");
    expect(linkedin).toHaveAttribute("rel", "noopener noreferrer");
    expect(screen.queryByRole("link", { name: "GitHub" })).toBeNull();
    for (const link of screen.getAllByRole("link")) {
      expect(link.getAttribute("href") ?? "").not.toMatch(/github\.com/);
    }
  });

  it("states who the work is for and how the contact works", () => {
    render(<Hero />);

    expect(
      screen.getByText(
        "Do site institucional ao sistema que a sua equipe usa todo dia. Você fala com quem desenvolve.",
      ),
    ).toBeInTheDocument();
    // o primeiro passo, logo abaixo dos botões
    const step = screen.getByText(
      "Começa com uma conversa para entender o seu caso. A proposta vem por escrito.",
    );
    expect(step.className).toContain("text-[15px]");
    expect(
      screen
        .getByRole("link", { name: "Chamar no WhatsApp" })
        .compareDocumentPosition(step) & Node.DOCUMENT_POSITION_FOLLOWING,
    ).toBeTruthy();
    // o botão flutuante do WhatsApp observa este id: some enquanto o link do hero está à vista
    expect(
      screen.getByRole("link", { name: "Chamar no WhatsApp" }),
    ).toHaveAttribute("id", "hero-contact-cta");
  });

  it("shows only the years of experience, with no repository numbers", () => {
    render(<Hero stats={{ years: 5 }} />);

    expect(screen.getByText("anos de experiência")).toBeInTheDocument();
    expect(screen.getByText("5")).toBeInTheDocument();
    expect(screen.queryByRole("term")).toBeNull();
    expect(screen.queryByText(/projetos desenvolvidos/i)).toBeNull();
    expect(screen.queryByText(/públicos|privados|mais de/i)).toBeNull();
  });

  it("lists the delivered clients, each linking to its case", () => {
    render(<Hero clients={clients} />);

    expect(screen.getByText("Já entregue para:")).toBeInTheDocument();
    for (const { id, name } of clients) {
      expect(screen.getByRole("link", { name })).toHaveAttribute(
        "href",
        `/cases/${id}`,
      );
    }
  });

  it("shows the block piece as a decorative poster: hidden from assistive tech, with an empty alt", () => {
    const { container } = render(<Hero clients={clients} />);

    const piece = container.querySelector(".hero-piece");
    expect(piece).not.toBeNull();
    expect(piece).toHaveAttribute("aria-hidden", "true");
    const image = piece?.querySelector("img");
    expect(image?.getAttribute("src")).toContain("hero-poster");
    expect(image).toHaveAttribute("alt", "");
  });

  it("shows a wide card to the SEV case below the buttons on small screens", () => {
    render(<Hero clients={clients} />);

    const small = screen.getByTestId("hero-work-mobile");
    expect(small).toHaveClass("lg:hidden");
    expect(small).toHaveAttribute("href", "/cases/sev-modaintima");
    expect(small).toHaveAccessibleName("Site da SEV Moda Íntima Ver case");
    const buttons = screen.getByRole("link", { name: /ver projetos/i });
    expect(
      buttons.compareDocumentPosition(small) & Node.DOCUMENT_POSITION_FOLLOWING,
    ).toBeTruthy();
  });

  it("keeps the label above the headline in the display font, so the mono font is not downloaded before the LCP", () => {
    const { container } = render(<Hero />);

    const label = container.querySelector(".hero-kicker") as HTMLElement;
    expect(label.textContent).toBe(
      "Evandro Fonseca Junior · Engenharia de software",
    );
    expect(label.className).toContain("font-display");
    expect(label.className).not.toContain("font-mono");
    // sem caixa alta nem espaçamento largo
    expect(label.className).not.toMatch(/uppercase|tracking-\[0\.1/);
  });

  it("shows only 'Engenharia de software' in the label below 1024 px, where it shares the line with the piece", () => {
    render(<Hero />);

    expect(screen.getByText(/Evandro Fonseca Junior/)).toHaveClass(
      "max-lg:hidden",
    );
    expect(screen.getByText(/Engenharia de software/).className).not.toContain(
      "hidden",
    );
  });

  it("uses no mono font anywhere in the first fold (label, years, scroll cue)", () => {
    const { container } = render(
      <Hero clients={clients} stats={{ years: 5 }} />,
    );

    expect(container.querySelector(".font-mono")).toBeNull();
  });

  it("pre-fetches 'Ver projetos entregues', the clients and the SEV card only when reached (hover, focus or touch), never by viewport", () => {
    render(<Hero clients={clients} />);

    const links = [
      screen.getByRole("link", { name: /ver projetos/i }),
      screen.getByRole("link", { name: "SEV Moda Íntima" }),
      screen.getByTestId("hero-work-mobile"),
    ];
    for (const link of links) {
      expect(link).toHaveAttribute("data-prefetch", "false");
      fireEvent.mouseEnter(link);
      expect(link).toHaveAttribute("data-prefetch", "null");
    }
  });

  it("writes the range of each dive caption (--from and --to, from hero-captions.ts) on its own item, in order", () => {
    const { container } = render(<Hero clients={clients} />);

    const items = Array.from(
      container.querySelectorAll<HTMLElement>(".hero-captions li"),
    );
    expect(items).toHaveLength(HERO_CAPTIONS.length);
    items.forEach((item, index) => {
      const { title, text, from, to } = HERO_CAPTIONS[index];
      expect(item).toHaveTextContent(`${title}${text}`);
      expect(item.style.getPropertyValue("--from")).toBe(String(from));
      expect(item.style.getPropertyValue("--to")).toBe(String(to));
    });
  });
});