import { cleanup, fireEvent, render, screen } from '@testing-library/react';
import { afterEach, describe, expect, it, vi } from 'vitest';
import de from '@/messages/de.json';
import { CalendarSourceForm } from './calendar-source-form';

/**
 * calendar-source-form.test — NEU (quick-260916-hiv). Deckt den
 * typabhaengigen URL-Platzhalter und den grauen EWS-Hinweis ab.
 * Texte aus der echten de.json.
 */
vi.mock('next-intl', async () => {
  const messages = (await import('@/messages/de.json')).default as Record<string, unknown>;
  const lookup = (path: string): string | undefined =>
    path.split('.').reduce<unknown>((o, k) => (o && typeof o === 'object' ? (o as any)[k] : undefined), messages) as
      | string
      | undefined;
  return {
    useTranslations: (ns?: string) => (key: string) => lookup(ns ? `${ns}.${key}` : key) ?? key,
  };
});

vi.mock('@/lib/calendar-api', () => ({
  testSourceConfig: vi.fn(),
  testSource: vi.fn(),
}));

const t = (de as { widgets: { calendar: Record<string, string> } }).widgets.calendar;

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

function renderForm() {
  const onSave = vi.fn();
  const onCancel = vi.fn();
  render(<CalendarSourceForm onSave={onSave} onCancel={onCancel} />);
  return {
    onSave,
    onCancel,
    urlInput: screen.getByLabelText(/Adresse \(URL\)/) as HTMLInputElement,
    typeSelect: screen.getByLabelText(/^Typ/) as HTMLSelectElement,
  };
}

describe('CalendarSourceForm — URL-Platzhalter je Typ + EWS-Hinweis (quick-260916-hiv)', () => {
  it('Test 1: ohne Typ zeigt das URL-Feld https:// und keinen EWS-Hinweis', () => {
    const { urlInput } = renderForm();

    expect(urlInput.placeholder).toBe('https://');
    expect(screen.queryByTestId('source-url-hint-ews')).not.toBeInTheDocument();
  });

  it('Test 2: CalDAV zeigt den CalDAV-Platzhalter, keinen Hinweis', () => {
    const { urlInput, typeSelect } = renderForm();

    fireEvent.change(typeSelect, { target: { value: 'caldav' } });

    expect(urlInput.placeholder).toBe(t.formFieldUrlPlaceholderCaldav);
    expect(screen.queryByTestId('source-url-hint-ews')).not.toBeInTheDocument();
  });

  it('Test 3: ICS zeigt den ICS-Platzhalter, keinen Hinweis', () => {
    const { urlInput, typeSelect } = renderForm();

    fireEvent.change(typeSelect, { target: { value: 'ics' } });

    expect(urlInput.placeholder).toBe(t.formFieldUrlPlaceholderIcs);
    expect(screen.queryByTestId('source-url-hint-ews')).not.toBeInTheDocument();
  });

  it('Test 4: Exchange (Standardmodus Graph) zeigt den Graph-Platzhalter, keinen Hinweis', () => {
    const { urlInput, typeSelect } = renderForm();

    fireEvent.change(typeSelect, { target: { value: 'exchange' } });

    expect(urlInput.placeholder).toBe(t.formFieldUrlPlaceholderGraph);
    expect(screen.queryByTestId('source-url-hint-ews')).not.toBeInTheDocument();
  });

  it('Test 5: Exchange + EWS zeigt den EWS-Platzhalter und den grauen Hinweis; zurueck auf Graph verschwindet beides', () => {
    const { urlInput, typeSelect } = renderForm();

    fireEvent.change(typeSelect, { target: { value: 'exchange' } });
    const exchangeModeSelect = screen.getByLabelText(/Exchange-Anbindung/) as HTMLSelectElement;
    fireEvent.change(exchangeModeSelect, { target: { value: 'ews' } });

    expect(urlInput.placeholder).toBe(t.formFieldUrlPlaceholderEws);
    const hint = screen.getByTestId('source-url-hint-ews');
    expect(hint).toHaveTextContent(t.formFieldUrlHintEws);
    expect(hint.className).toContain('text-muted-foreground');

    fireEvent.change(exchangeModeSelect, { target: { value: 'graph' } });

    expect(screen.queryByTestId('source-url-hint-ews')).not.toBeInTheDocument();
    expect(urlInput.placeholder).toBe(t.formFieldUrlPlaceholderGraph);
  });

  it('Test 6: Exchange + EWS mit http-Fehler zeigt Fehler UND Hinweis, Hinweis steht nach dem Fehler', () => {
    const { urlInput, typeSelect } = renderForm();

    fireEvent.change(typeSelect, { target: { value: 'exchange' } });
    const exchangeModeSelect = screen.getByLabelText(/Exchange-Anbindung/) as HTMLSelectElement;
    fireEvent.change(exchangeModeSelect, { target: { value: 'ews' } });

    fireEvent.change(urlInput, { target: { value: 'http://mail.firma.de/EWS/Exchange.asmx' } });

    const fehler = screen.getByText(t.formUrlErrorHttps);
    const hinweis = screen.getByTestId('source-url-hint-ews');
    expect(fehler).toBeInTheDocument();
    expect(hinweis).toBeInTheDocument();
    expect(fehler.compareDocumentPosition(hinweis) & Node.DOCUMENT_POSITION_FOLLOWING).toBeTruthy();
  });
});