import { render, screen } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import Contact from "./Contact";

/**
 * Testes de caminhos-base de openWhatsApp, dentro de Contact: a aba abriu (o vínculo com a página é cortado),
 * o navegador bloqueou (devolve null ou undefined e a própria página vai para o WhatsApp) e os argumentos da chamada.
 * O envio com campos inválidos não abre nada.
 */

const NAVIGATION_ERROR = "Not implemented: navigation";

beforeEach(() => {
  jest.replaceProperty(process.env, "NODE_ENV", "production");
  localStorage.setItem("evandro.analytics-consent.v1", "granted");
  delete window["ga-disable-G-QTT9QT0T3S"];
  window.gtag = jest.fn();
});

afterEach(() => {
  jest.restoreAllMocks();
  localStorage.clear();
  delete window.gtag;
});

async function fillValidForm() {
  const user = userEvent.setup({ delay: null });
  render(<Contact />);
  await user.type(screen.getByRole("textbox", { name: /nome/i }), "Ana");
  await user.type(
    screen.getByRole("textbox", { name: /contexto/i }),
    "Organizar pedidos",
  );
  return user;
}

const submit = () => screen.getByRole("button", { name: /whatsapp/i });

function navigationAttempts(errors: jest.SpyInstance) {
  return errors.mock.calls.filter(([error]) =>
    String(error).includes(NAVIGATION_ERROR),
  ).length;
}

describe("Contact: abertura do WhatsApp", () => {
  it("path: the tab opened -> the opener link is cut and this page stays where it is", async () => {
    const errors = jest.spyOn(console, "error").mockImplementation(() => {});
    const opened = { opener: { stillLinked: true } };
    jest
      .spyOn(window, "open")
      .mockImplementation(() => opened as unknown as Window);
    const user = await fillValidForm();

    await user.click(submit());

    expect(opened.opener).toBeNull();
    expect(navigationAttempts(errors)).toBe(0);
  });

  it("path: the call asks for a new tab with the wa.me link and no third argument (noopener would hide the result)", async () => {
    jest.spyOn(window, "open").mockImplementation(() => null);
    jest.spyOn(console, "error").mockImplementation(() => {});
    const user = await fillValidForm();

    await user.click(submit());

    expect(window.open).toHaveBeenCalledTimes(1);
    const args = jest.mocked(window.open).mock.calls[0];
    expect(args).toHaveLength(2);
    expect(String(args[0])).toMatch(/^https:\/\/wa\.me\/\d+\?text=/);
    expect(args[1]).toBe("_blank");
  });

  it("path: the browser blocks the tab with null -> the page itself goes to WhatsApp, once", async () => {
    const errors = jest.spyOn(console, "error").mockImplementation(() => {});
    jest.spyOn(window, "open").mockImplementation(() => null);
    const user = await fillValidForm();

    await user.click(submit());

    expect(navigationAttempts(errors)).toBe(1);
  });

  it("path: the browser answers undefined (some in-app browsers) -> the page itself goes to WhatsApp", async () => {
    const errors = jest.spyOn(console, "error").mockImplementation(() => {});
    jest
      .spyOn(window, "open")
      .mockImplementation(() => undefined as unknown as Window);
    const user = await fillValidForm();

    await user.click(submit());

    expect(navigationAttempts(errors)).toBe(1);
  });

  it("path: the form is invalid -> no tab, no navigation and no metric", async () => {
    const errors = jest.spyOn(console, "error").mockImplementation(() => {});
    jest.spyOn(window, "open").mockImplementation(() => null);
    const user = userEvent.setup({ delay: null });
    render(<Contact />);

    await user.click(submit());

    expect(window.open).not.toHaveBeenCalled();
    expect(navigationAttempts(errors)).toBe(0);
    expect(window.gtag).not.toHaveBeenCalled();
  });
});