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

/**
 * O pôster do hero: pelo next/image com `sizes` do tamanho em que aparece, lazy e com prioridade baixa (o título é o
 * LCP), no cartão largo e clicável da SEV para as telas abaixo de 1024 px. Em tela larga a coluna é da peça 3D.
 */

const original = (image: Element) =>
  new URL(image.getAttribute("src") ?? "", "http://localhost").searchParams.get(
    "url",
  );

describe("HeroWork: pôsteres no tamanho certo", () => {
  it("serves the SEV poster through the image optimizer, with a `sizes` that matches how it shows", () => {
    render(<HeroWork />);

    // o cartão do celular usa o pôster de celular da SEV (o título em letras grandes cabe na faixa de 72 px), na largura
    // da coluna (a tela menos as duas margens: cerca de 342 px num celular de 390 px), e não 100vw
    const small = screen
      .getByTestId("hero-work-mobile")
      .querySelector("img") as HTMLImageElement;
    expect(original(small)).toBe("/videos/sev-modaintima/mobile.webp");
    expect(small).toHaveAttribute(
      "sizes",
      "(min-width: 1024px) 1px, calc(100vw - 48px)",
    );
    expect(small).toHaveAttribute("width", "390");
    expect(small).toHaveAttribute("height", "844");
  });

  it("shows the headline of the SEV poster in the 72px strip of the mobile card: the position moves the strip to the line 'Nova Coleção' instead of the top of the poster", () => {
    render(<HeroWork />);

    const small = screen
      .getByTestId("hero-work-mobile")
      .querySelector("img") as HTMLImageElement;
    expect(small).toHaveClass("object-cover", "object-[50%_57%]");
    expect(small).not.toHaveClass("object-top");
    // a faixa continua pequena (o título da página segue como o maior elemento da dobra)
    expect((small.parentElement as HTMLElement).style.height).toBe("72px");
  });

  it("never asks for a high priority: lazy, low fetch priority and no preload, so the headline stays the LCP", () => {
    const { container } = render(<HeroWork />);

    const images = container.querySelectorAll("img");
    expect(images).toHaveLength(1);
    for (const image of images) {
      expect(image).toHaveAttribute("loading", "lazy");
      expect(image).toHaveAttribute("fetchpriority", "low");
    }
    // sem <link rel="preload">: o next/image só o insere com `preload` (ou fetchPriority="high")
    expect(document.head.querySelector('link[rel="preload"]')).toBeNull();
  });
});

describe("HeroWork: cartão do celular", () => {
  it("is the whole component: a wide card with the SEV poster, only below 1024px", () => {
    const { container } = render(<HeroWork />);

    const card = screen.getByTestId("hero-work-mobile");
    expect(container.firstChild).toBe(card);
    expect(container.childElementCount).toBe(1);
    expect(card).toHaveClass("lg:hidden", "w-full");
    // sem a moldura de celular de 65x160 px: a imagem é larga e ocupa a coluna inteira
    expect(card.querySelector(".ds-phone")).toBeNull();
    const imageBox = card.querySelector("img")?.parentElement as HTMLElement;
    expect(imageBox).toHaveClass("w-full");
    expect(imageBox.style.height).toBe("72px");
    expect(card).toHaveTextContent("Site da SEV Moda Íntima");
    expect(card).toHaveTextContent("Ver case");
  });

  it("is a link to the SEV case, with a touch target of at least 48px and its own focus ring", () => {
    render(<HeroWork />);

    const card = screen.getByRole("link", {
      name: "Site da SEV Moda Íntima Ver case",
    });
    expect(card).toBe(screen.getByTestId("hero-work-mobile"));
    expect(card).toHaveAttribute("href", "/cases/sev-modaintima");
    expect(card).not.toHaveClass("pointer-events-none");
    expect(card.className).toContain("focus-visible:outline-2");
    expect(card.querySelector("span.min-h-12")).not.toBeNull();
    // a imagem é decorativa: o texto do link já diz o que ela mostra
    expect(card.querySelector("img")).toHaveAttribute("alt", "");
  });

  it("draws no other link: the card is the only one in HeroWork", () => {
    render(<HeroWork />);

    expect(screen.getAllByRole("link")).toHaveLength(1);
  });
});