import { fireEvent, render, screen } from "@testing-library/react";
import { getFeaturedProjects } from "@/lib/portfolio-data";
import {
  type ShowcaseItem,
  ShowcaseProvider,
  useShowcaseItems,
  useShowcaseOpen,
} from "./ShowcaseProvider";

// a janela ampliada chega sob demanda (React.lazy): aqui entra já (o dublê logo abaixo), para o teste não esperar
jest.mock("./ProjectLightboxLazy", () => ({
  ProjectLightboxLazy: jest.requireMock("./ProjectLightbox").ProjectLightbox,
}));

/**
 * Testes de caminhos-base de ShowcaseProvider (complemento de ShowcaseProvider.test.tsx). O provedor só guarda a
 * lista da vitrine e qual projeto está ampliado: aqui, a janela aberta quando a lista muda, a troca de projeto
 * com a janela já aberta e a estabilidade do que ele entrega (lista e função de abrir) entre renderizações.
 * A janela ampliada é um dublê que só mostra o índice.
 */

jest.mock("./ProjectLightbox", () => ({
  ProjectLightbox: ({
    index,
    items,
    onClose,
  }: {
    index: number;
    items: unknown[];
    onClose: () => void;
  }) => (
    <div role="dialog" aria-label="ampliado">
      aberto:{index} de {items.length}
      <button type="button" onClick={onClose}>
        fechar
      </button>
    </div>
  ),
}));

const projects = getFeaturedProjects(null);
const clientIds = ["sev-modaintima", "lavacao-047", "sc-plus", "as-servicos"];
const clients = projects.filter((project) => clientIds.includes(project.id));

function Opener({ id }: { id: string }) {
  const open = useShowcaseOpen();
  return (
    <button type="button" onClick={() => open(id)}>
      abrir {id}
    </button>
  );
}

describe("ShowcaseProvider: janela ampliada e mudança da lista", () => {
  it("path: window open and its project leaves the list -> the window goes away", () => {
    const { rerender } = render(
      <ShowcaseProvider projects={clients}>
        <Opener id="sc-plus" />
      </ShowcaseProvider>,
    );
    fireEvent.click(screen.getByRole("button", { name: "abrir sc-plus" }));
    expect(screen.getByRole("dialog")).toHaveTextContent("aberto:2 de 4");

    rerender(
      <ShowcaseProvider
        projects={clients.filter((project) => project.id !== "sc-plus")}
      >
        <Opener id="sc-plus" />
      </ShowcaseProvider>,
    );

    expect(screen.queryByRole("dialog")).toBeNull();
  });

  it("path: window open and another project is opened -> it moves to the new project, one window only", () => {
    render(
      <ShowcaseProvider projects={clients}>
        <Opener id="sev-modaintima" />
        <Opener id="as-servicos" />
      </ShowcaseProvider>,
    );

    fireEvent.click(
      screen.getByRole("button", { name: "abrir sev-modaintima" }),
    );
    expect(screen.getByRole("dialog")).toHaveTextContent("aberto:0 de 4");
    fireEvent.click(screen.getByRole("button", { name: "abrir as-servicos" }));

    expect(screen.getAllByRole("dialog")).toHaveLength(1);
    expect(screen.getByRole("dialog")).toHaveTextContent("aberto:3 de 4");
  });

  it("path: a project outside the showcase is asked while another window is open -> no window is left", () => {
    render(
      <ShowcaseProvider projects={projects}>
        <Opener id="sev-modaintima" />
        <Opener id="reddit-explorer" />
      </ShowcaseProvider>,
    );
    fireEvent.click(
      screen.getByRole("button", { name: "abrir sev-modaintima" }),
    );

    fireEvent.click(
      screen.getByRole("button", { name: "abrir reddit-explorer" }),
    );

    // o id desconhecido não acha posição na lista: a janela não mostra projeto nenhum
    expect(screen.queryByRole("dialog")).toBeNull();
  });

  it("path: closed window -> reopening the same project works again", () => {
    render(
      <ShowcaseProvider projects={clients}>
        <Opener id="lavacao-047" />
      </ShowcaseProvider>,
    );

    fireEvent.click(screen.getByRole("button", { name: "abrir lavacao-047" }));
    fireEvent.click(screen.getByRole("button", { name: "fechar" }));
    expect(screen.queryByRole("dialog")).toBeNull();
    fireEvent.click(screen.getByRole("button", { name: "abrir lavacao-047" }));

    expect(screen.getByRole("dialog")).toHaveTextContent("aberto:1 de 4");
  });
});

type Captured = {
  items: ShowcaseItem[];
  open: (id: string) => void;
};

function Probe({ onRender }: { onRender: (captured: Captured) => void }) {
  onRender({ items: useShowcaseItems(), open: useShowcaseOpen() });
  return null;
}

describe("ShowcaseProvider: o que entrega a quem está dentro", () => {
  it("path: re-render with the same projects -> the same list and the same open function", () => {
    const seen: Captured[] = [];
    const tree = () => (
      <ShowcaseProvider projects={clients}>
        <Probe onRender={(captured) => seen.push(captured)} />
      </ShowcaseProvider>
    );
    const { rerender } = render(tree());

    rerender(tree());

    expect(seen.length).toBeGreaterThan(1);
    expect(seen[seen.length - 1].items).toBe(seen[0].items);
    expect(seen[seen.length - 1].open).toBe(seen[0].open);
  });

  it("path: a different list of projects -> a new list of items", () => {
    const seen: Captured[] = [];
    const probe = <Probe onRender={(captured) => seen.push(captured)} />;
    const { rerender } = render(
      <ShowcaseProvider projects={clients}>{probe}</ShowcaseProvider>,
    );

    rerender(
      <ShowcaseProvider projects={clients.slice(0, 2)}>
        {probe}
      </ShowcaseProvider>,
    );

    expect(seen[0].items).toHaveLength(4);
    expect(seen[seen.length - 1].items).toHaveLength(2);
  });
});