// @vitest-environment happy-dom
import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
import { afterEach, describe, expect, it, vi } from "vitest";

import { KillDialog } from "./KillDialog.js";

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

describe("KillDialog", () => {
  it("focuses the kill button, so Enter confirms", () => {
    render(<KillDialog name="alpha" blockers={null} onConfirm={() => Promise.resolve()} onCancel={vi.fn()} />);
    expect(document.activeElement).toBe(screen.getByRole("button", { name: "Kill" }));
  });

  it("focuses the force button too", () => {
    render(
      <KillDialog
        name="alpha"
        blockers={null}
        force
        reason="worktree is dirty."
        onConfirm={() => Promise.resolve()}
        onCancel={vi.fn()}
      />,
    );
    expect(document.activeElement).toBe(screen.getByRole("button", { name: "Force kill" }));
  });

  it("names the blockers in the confirm body", () => {
    render(
      <KillDialog
        name="alpha"
        blockers={{ uncommitted_files: 2, untracked_files: 0, unpushed_commits: 0 }}
        onConfirm={() => Promise.resolve()}
        onCancel={vi.fn()}
      />,
    );
    expect(screen.getByText(/will be refused unless it is forced/)).not.toBeNull();
  });

  it("cancels on Cancel, on Escape and on a backdrop click", () => {
    const onCancel = vi.fn();
    const first = render(<KillDialog name="alpha" blockers={null} onConfirm={() => Promise.resolve()} onCancel={onCancel} />);
    fireEvent.click(screen.getByRole("button", { name: "Cancel" }));
    expect(onCancel).toHaveBeenCalledTimes(1);
    first.unmount();

    const second = render(<KillDialog name="alpha" blockers={null} onConfirm={() => Promise.resolve()} onCancel={onCancel} />);
    fireEvent.keyDown(screen.getByRole("dialog"), { key: "Escape" });
    expect(onCancel).toHaveBeenCalledTimes(2);
    second.unmount();

    render(<KillDialog name="alpha" blockers={null} onConfirm={() => Promise.resolve()} onCancel={onCancel} />);
    fireEvent.click(screen.getByRole("dialog"));
    expect(onCancel).toHaveBeenCalledTimes(3);
  });

  it("disables the button while pending and shows a rejection inline, so the press can be retried", async () => {
    let reject: (e: Error) => void = () => {};
    const onConfirm = vi.fn(() => new Promise<void>((_, r) => (reject = r)));
    render(<KillDialog name="alpha" blockers={null} onConfirm={onConfirm} onCancel={vi.fn()} />);

    const kill = screen.getByRole("button", { name: "Kill" }) as HTMLButtonElement;
    fireEvent.click(kill);
    expect(onConfirm).toHaveBeenCalledOnce();
    expect(kill.disabled).toBe(true);

    reject(new Error("daemon unreachable"));
    await waitFor(() => expect(kill.disabled).toBe(false));
    expect(screen.getByText("Failed to kill: daemon unreachable")).not.toBeNull();
  });
});