05.04 — Key UI components#

The src/components/ files and their role in the playground.

Listing#

src/components/
├── BackToHome.tsx              # back-to-HOME button
├── BackToSicily.tsx            # variant
├── Button.tsx                  # Tailwind-styled button
├── ChaoticForm.tsx             # ⭐ form with .catch-me-if-you-can elements
├── Dropzone.tsx                # ⭐ react-dropzone wrapper for SACRED_UPLOAD
├── ErrorCode.tsx               # component showing an HTTP code (used by RANDOM_ERROR)
├── FakeUpload/                 # fake upload component (animation, no real POST)
├── InternalErrorMsg.tsx        # generic error message
├── Label.tsx                   # form label
├── Link.tsx                    # styled <a> wrapper
├── Loading.tsx                 # generic spinner
├── LoginForm.tsx               # ⭐ login form + MFA OTP
├── PlusButton.tsx              # + button (corsicamon: add to collection)
├── RandomBibleVerse.tsx        # random bible verse
├── RandomLoader.tsx            # ⭐ random loader
├── UploadPreview.tsx           # preview of an uploaded file
└── XButton.tsx                 # X close button

⭐ = key component for Ocarina scenarios.

LoginForm.tsx#

Architecture#

const LoginForm: FunctionComponent<LoginFormProps> = ({ onLogin }) => {
  const [username, setUsername] = useState('');
  const [password, setPassword] = useState('');
  const [error, setError] = useState('');
  const [useOTP, setUseOTP] = useState(false);
  const [otpApiKey, setOtpApiKey] = useState('');
  const [otpResponse, setOtpResponse] = useState<OTPResponse | null>(null);
  const [otpInput, setOtpInput] = useState('');
  const [isLoading, setIsLoading] = useState(false);
  const abortControllerRef = useRef<AbortController | null>(null);

  useEffect(() => () => abortControllerRef.current?.abort(), []);

  const handleSubmit = async (e: FormEvent) => {
    ...
  };
  ...
};

abortControllerRef#

const abortControllerRef = useRef<AbortController | null>(null);

useEffect(() => () => abortControllerRef.current?.abort(), []);

...
abortControllerRef.current?.abort();
abortControllerRef.current = new AbortController();

const response = await fetch(`...`, { signal: abortControllerRef.current.signal });

→ Cancels an in-flight request when the user clicks “Send OTP” twice, or when the component unmounts.

Schema validation (OTP service response)#

import { OTPResponseSchema } from "@/schemas/OTPResponseSchema";

const parseResult = safeParse(OTPResponseSchema, data);
if (!parseResult.success) {
  setError("Invalid OTP response format");
  return;
}
setOtpResponse(parseResult.output);

ChaoticForm.tsx#

• Parasite validation (error message appears on correct input).
• Ephemeral toasts (appear, vanish).
• Form randomly rejected on submit (incomprehensible random error message).

Tests side:

1. HumanizedDriver in ocarina-example — slows down typing, simulates keystrokes / typos / corrections.
2. Watcher catch_me_if_you_can_cb — catches parasite elements in the background.

Dropzone.tsx#

const onDrop = useCallback((acceptedFiles: File[]) => {
  setFiles((prev) => [...prev, ...acceptedFiles]);
}, []);

const { getRootProps, getInputProps, isDragActive } = useDropzone({ onDrop });

• Multi-file drag-and-drop.
• Per-file preview via UploadPreview.
• No real upload — fake (animation, no POST).

tests/scenarios/sacred_upload/upload_files.py:

• Open the page,
• Drag a fixture file,
• Verify the preview.

RandomLoader.tsx#

const LOADERS = [SpinnerStyle1, SpinnerStyle2, SpinnerStyle3, ...] as const;

const RandomLoader = () => {
  const [Loader] = useState(() => pickRandom(LOADERS));
  return <Loader />;
};

→ Picks a random loader at creation time. Lives for the component’s lifetime.

Tests side: the RANDOM_LOADERS page shows several RandomLoaders; the test just verifies that something shows up. No specific loader expected.

Loading.tsx vs RandomLoader.tsx#

ErrorCode.tsx + InternalErrorMsg.tsx#

Visual error components. Typically display “500 Internal Server Error”. The RANDOM_ERROR page uses them to simulate an error page, and the title gets matched by ERROR_PAGE_REGEX on the tests side.

RandomBibleVerse.tsx#

Cosmetic component: displays a random verse. So that the Spam God may watch over Igoristan.

BackToHome.tsx / BackToSicily.tsx#

Links back to home, or sending you to a Sicilian site to eject the invaders. ✈️

LoginForm#

tests/scenarios/dashboard/access/happy_paths.py:

• open_dashboard_login_page,
• verify_dashboard_login_page,
• login_without_otp_and_with_retries (90% success, up to 10 retries to beat the odds),
• start_to_login_with_otp_and_with_retries,
• verify_otp_screen,
• type_otp_with_retries,
• verify_dashboard_welcome_page,
• click_on_go_to_nested_page_btn,
• verify_dashboard_protected_page.

~9 acts, so at least 2 drive_pages, sometimes 3. The most complete case in the canonical suite.