import { render } from "@testing-library/react";
import fc from "fast-check";
import type { HTMLAttributes, ReactNode } from "react";
import type { PortfolioExperience } from "@/lib/portfolio-data";
import Experience from "./Experience";

type MotionProps = HTMLAttributes<HTMLElement> & {
  initial?: unknown;
  whileInView?: unknown;
  viewport?: unknown;
  variants?: unknown;
  whileHover?: unknown;
  whileTap?: unknown;
  transition?: unknown;
};

type SectionMockProps = {
  children?: ReactNode;
  title?: string;
  eyebrow?: string;
  description?: string;
  disableChildrenAnimation?: boolean;
  id?: string;
  className?: string;
};

jest.mock("motion/react", () => {
  const createMotionElement =
    (Tag: "div" | "article") =>
    ({
      children,
      initial: _initial,
      whileInView: _whileInView,
      viewport: _viewport,
      variants: _variants,
      whileHover: _whileHover,
      whileTap: _whileTap,
      transition: _transition,
      ...props
    }: MotionProps & { children?: ReactNode }) => (
      <Tag {...props}>{children}</Tag>
    );

  return {
    motion: {
      div: createMotionElement("div"),
      article: createMotionElement("article"),
    },
    useReducedMotion: () => false,
  };
});

jest.mock("./Section", () => ({
  Section: ({
    children,
    title,
    eyebrow: _eyebrow,
    description: _description,
    disableChildrenAnimation: _disableChildrenAnimation,
    ...props
  }: SectionMockProps) => (
    <section {...props}>
      <h2>{title}</h2>
      {children}
    </section>
  ),
}));

jest.mock("./animations/DrawLine", () => ({
  DrawLine: () => <span data-testid="draw-line" />,
}));

function makeExperience(index: number): PortfolioExperience {
  return {
    id: `experience-${index}`,
    title: `Experience ${index}`,
    company: "Company",
    period: `${2020 + index} - Present`,
    location: "Remote",
    type: index % 2 === 0 ? "Software" : "Hardware",
    description: "Description",
    achievements: [],
    technologies: [],
    featured: true,
  };
}

describe("Experience heading hierarchy", () => {
  it("renders one h2 section heading and h3 headings for featured cards", () => {
    fc.assert(
      fc.property(fc.integer({ min: 1, max: 8 }), (count) => {
        const experiences = Array.from({ length: count }, (_, index) =>
          makeExperience(index),
        );
        const { container, unmount } = render(
          <Experience experiences={experiences} />,
        );

        const headings = Array.from(
          container.querySelectorAll("h1, h2, h3, h4, h5, h6"),
        );

        expect(headings[0]?.tagName).toBe("H2");
        expect(container.querySelector("section > h2")).toHaveTextContent(
          "Experiência em engenharia de software e sistemas críticos",
        );
        expect(container.querySelectorAll("section > h2")).toHaveLength(1);
        expect(container.querySelectorAll("article h3")).toHaveLength(count);
        expect(
          new Set(
            Array.from(container.querySelectorAll("article h3")).map(
              (heading) => heading.textContent,
            ),
          ),
        ).toEqual(new Set(experiences.map((experience) => experience.title)));
        expect(headings.some((heading) => heading.tagName === "H4")).toBe(
          false,
        );

        unmount();
      }),
      { numRuns: 25 },
    );
  });

  it("renders no card headings when no experiences are supplied", () => {
    const { container } = render(<Experience />);

    expect(container.querySelector("section > h2")).toBeInTheDocument();
    expect(container.querySelectorAll("article h3")).toHaveLength(0);
  });
});