import { describe, it, expect, vi } from 'vitest';
import { render, screen, fireEvent } from '@testing-library/react';
import DigitInput from './DigitInput';

describe('DigitInput — ورودی عددی با تبدیل رقم فارسی', () => {
  it('converts Persian/Arabic digits to English (happy path)', () => {
    const onChange = vi.fn();
    render(<DigitInput value="" onChange={onChange} placeholder="p" />);
    fireEvent.change(screen.getByPlaceholderText('p'), { target: { value: '۰۹۱۲٣٤' } });
    expect(onChange).toHaveBeenCalledWith('091234');
  });

  it('strips non-digit characters (error/garbage input)', () => {
    const onChange = vi.fn();
    render(<DigitInput value="" onChange={onChange} placeholder="p" />);
    fireEvent.change(screen.getByPlaceholderText('p'), { target: { value: '0a9 1-2b' } });
    expect(onChange).toHaveBeenCalledWith('0912');
  });

  it('enforces maxDigits and handles empty input (boundary)', () => {
    const onChange = vi.fn();
    render(<DigitInput value="" onChange={onChange} maxDigits={10} placeholder="p" />);
    const input = screen.getByPlaceholderText('p');
    fireEvent.change(input, { target: { value: '۱۲۳۴۵۶۷۸۹۰۱۲' } });
    expect(onChange).toHaveBeenCalledWith('1234567890');
    expect(input).toHaveAttribute('dir', 'ltr');
    expect(input).toHaveAttribute('inputmode', 'numeric');
  });
});