import { fireEvent, render, screen, within } from "@testing-library/react";
import type { ReactNode } from "react";
import { Header } from "./Header";

jest.mock("motion/react", () => {
  const React = require("react");

  const motion = new Proxy(
    {},
    {
      get: (_, tag: string) => {
        const Component = ({
          children,
          animate: _animate,
          transition: _transition,
          whileHover: _whileHover,
          ...props
        }: { children?: ReactNode } & Record<string, unknown>) =>
          React.createElement(tag, props, children);
        Component.displayName = `motion.${tag}`;
        return Component;
      },
    },
  );

  return { motion, useReducedMotion: () => false };
});

describe("Header", () => {
  it("exposes the primary navigation and the existing CV asset", () => {
    render(<Header />);

    expect(screen.getByRole("link", { name: "Home" })).toHaveAttribute(
      "href",
      "/#home",
    );
    expect(screen.getByRole("link", { name: "Casos" })).toHaveAttribute(
      "href",
      "/cases",
    );
    expect(screen.getByRole("link", { name: "Serviços" })).toHaveAttribute(
      "href",
      "/servicos",
    );
    expect(screen.getByRole("link", { name: "Currículo" })).toHaveAttribute(
      "href",
      "/curriculo",
    );

    const cvLink = screen.getByRole("link", { name: "Download CV" });
    expect(cvLink).toHaveAttribute("href", "/Profile.pdf");
    expect(cvLink).toHaveAttribute("download", "Evandro_Fonseca_Junior_CV.pdf");
    expect(
      screen.getByRole("navigation", { name: "Navegação principal" }),
    ).toHaveClass("site-header-nav");
  });

  it("announces and controls the mobile menu", () => {
    render(<Header />);

    const menuButton = screen.getByRole("button", { name: "Abrir menu" });
    expect(menuButton).not.toHaveAttribute("aria-controls");
    expect(menuButton).toHaveAttribute("aria-expanded", "false");
    expect(menuButton).toHaveClass("site-header-menu-toggle");
    expect(
      screen.queryByRole("navigation", { name: "Navegação mobile" }),
    ).not.toBeInTheDocument();

    fireEvent.click(menuButton);

    expect(screen.getByRole("button", { name: "Fechar menu" })).toHaveAttribute(
      "aria-controls",
      "site-navigation-menu",
    );
    expect(screen.getByRole("button", { name: "Fechar menu" })).toHaveAttribute(
      "aria-expanded",
      "true",
    );
    const mobileNavigation = screen.getByRole("navigation", {
      name: "Navegação mobile",
    });
    expect(mobileNavigation).toHaveAttribute("id", "site-navigation-menu");
    expect(mobileNavigation).toHaveAttribute("aria-hidden", "false");

    const closeButton = screen.getByRole("button", { name: "Fechar menu" });
    fireEvent.keyDown(closeButton, { key: "Escape" });
    const openButton = screen.getByRole("button", { name: "Abrir menu" });
    expect(openButton).toHaveAttribute("aria-expanded", "false");
    expect(document.activeElement).toBe(openButton);
  });

  it("returns focus after closing the menu from a mobile link", () => {
    render(<Header />);

    fireEvent.click(screen.getByRole("button", { name: "Abrir menu" }));
    const mobileNavigation = screen.getByRole("navigation", {
      name: "Navegação mobile",
    });
    fireEvent.click(
      within(mobileNavigation).getByRole("link", { name: "Home" }),
    );

    const openButton = screen.getByRole("button", { name: "Abrir menu" });
    expect(openButton).toHaveAttribute("aria-expanded", "false");
    expect(document.activeElement).toBe(openButton);
  });
});