import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import TermsSheet from "./terms-sheet";

vi.mock("@/translations/provider", () => ({
  useI18n: () => ({
    locale: "fa",
    dictionary: {
      "terms & conditions": "قوانین و مقررات",
      "Got it": "متوجه شدم",
      "Close terms and conditions": "بستن قوانین و مقررات",
    },
  }),
}));

describe("TermsSheet Component (DraggableScrollableSheet Parity)", () => {
  beforeEach(() => {
    vi.clearAllMocks();
  });

  afterEach(() => {
    cleanup();
  });

  it("does not render when isOpen is false", () => {
    render(<TermsSheet isOpen={false} />);
    expect(screen.queryByRole("dialog")).toBeNull();
  });

  it("renders with initial 75% height when isOpen is true", () => {
    render(<TermsSheet isOpen={true} />);

    const dialog = screen.getByRole("dialog");
    expect(dialog).toBeInTheDocument();

    const section = dialog.querySelector("section")!;
    expect(section).toHaveClass("h-[calc(var(--sheet-size,0.75)*100svh)]");
    expect(screen.getByText("قوانین و مقررات")).toBeInTheDocument();
    expect(screen.getByText("متوجه شدم")).toBeInTheDocument();
  });

  it("grows sheet when pulling up at top of content", () => {
    render(<TermsSheet isOpen={true} />);

    const dialog = screen.getByRole("dialog");
    const section = dialog.querySelector("section")!;
    const content = screen.getByTestId("terms-sheet-content");

    Object.defineProperty(content, "scrollHeight", { value: 1200, configurable: true });
    Object.defineProperty(content, "clientHeight", { value: 400, configurable: true });
    Object.defineProperty(content, "scrollTop", { value: 0, configurable: true });

    fireEvent.touchStart(content, { touches: [{ clientX: 0, clientY: 400 }] });
    fireEvent.touchMove(content, { touches: [{ clientX: 0, clientY: 300 }] });

    expect(section.style.getPropertyValue("--sheet-size")).toBe(
      (0.75 + 100 / window.innerHeight).toFixed(4),
    );
  });

  it("grows sheet on wheel event at top of content", () => {
    render(<TermsSheet isOpen={true} />);

    const dialog = screen.getByRole("dialog");
    const section = dialog.querySelector("section")!;
    const content = screen.getByTestId("terms-sheet-content");

    Object.defineProperty(content, "scrollHeight", { value: 1200, configurable: true });
    Object.defineProperty(content, "clientHeight", { value: 400, configurable: true });
    Object.defineProperty(content, "scrollTop", { value: 0, configurable: true });

    fireEvent.wheel(content, { deltaY: 120 });

    expect(section.style.getPropertyValue("--sheet-size")).toBe(
      (0.75 + 120 / window.innerHeight).toFixed(4),
    );
  });

  it("shrinks to 60% floor and closes when pulled past it (shouldCloseOnMinExtent: true)", async () => {
    const handleClose = vi.fn();
    render(<TermsSheet isOpen={true} onClose={handleClose} />);

    const dialog = screen.getByRole("dialog");
    const section = dialog.querySelector("section")!;
    const content = screen.getByTestId("terms-sheet-content");

    Object.defineProperty(content, "scrollTop", { value: 0, configurable: true });

    // Pull down at the top: sheet shrinks and clamps at 0.6 floor
    fireEvent.touchStart(content, { touches: [{ clientX: 0, clientY: 400 }] });
    fireEvent.touchMove(content, { touches: [{ clientX: 0, clientY: 560 }] });
    expect(section.style.getPropertyValue("--sheet-size")).toBe("0.6000");

    // Pull further past 0.6: triggers close
    fireEvent.touchMove(content, { touches: [{ clientX: 0, clientY: 580 }] });

    await waitFor(() => {
      expect(handleClose).toHaveBeenCalled();
    });
  });

  it("calls onClose when Got it button is clicked", async () => {
    const handleClose = vi.fn();
    render(<TermsSheet isOpen={true} onClose={handleClose} />);

    const gotItButton = screen.getByRole("button", { name: "متوجه شدم" });
    fireEvent.click(gotItButton);

    await waitFor(() => {
      expect(handleClose).toHaveBeenCalled();
    });
  });

  it("calls onClose when close X button is clicked", async () => {
    const handleClose = vi.fn();
    render(<TermsSheet isOpen={true} onClose={handleClose} />);

    const closeButton = screen.getByRole("button", { name: "بستن قوانین و مقررات" });
    fireEvent.click(closeButton);

    await waitFor(() => {
      expect(handleClose).toHaveBeenCalled();
    });
  });
});