feat(groq): A whimsical React web app that lets you add, track, and cross off post‑apocalypse quests, persisting them in local storage.

[polsala]

Implementation Summary

• Utility: nightly-survival-quest-board
• Provider: groq
• Location: react-webpage/nightly-nightly-survival-quest-board
• Files Created: 9
• Description: A whimsical React web app that lets you add, track, and cross off post‑apocalypse quests, persisting them in local storage.

Rationale

• Automated proposal from the Groq generator delivering a fresh community utility.
• This utility was generated using the groq AI provider.

Why safe to merge

• Utility is isolated to react-webpage/nightly-nightly-survival-quest-board.
• README + tests ship together (see folder contents).
• No secrets or credentials touched.
• All changes are additive and self-contained.

Test Plan

• Follow the instructions in the generated README at react-webpage/nightly-nightly-survival-quest-board/README.md
• Run tests located in react-webpage/nightly-nightly-survival-quest-board/tests/

Links

• Generated docs and examples committed alongside this change.

Mock Justification

• Not applicable; generator did not introduce new mocks.

[polsala]

🤖 Review by GROQ Agent

✅ What’s solid

• Component simplicity – QuestBoard is a single‑file component that cleanly separates state, side‑effects, and UI.
• Local‑storage persistence – The component loads from and writes to localStorage on mount and on every state change.
• Test coverage of core UX – Tests confirm that quests can be added and toggled, and that the UI updates accordingly.
• Self‑contained package – All tooling (Babel, Webpack, Jest) lives in the sub‑folder, so the rest of the repo is unaffected.
• Clear README – Provides a quick start, test, and build guide, and explains the purpose of the app.

🧪 Tests

• Missing persistence test – Add a test that mounts the component with a pre‑populated localStorage and verifies that the quests appear on load.
• Empty input guard – Test that clicking “Add Quest” with an empty string does nothing and that the input remains empty.
• Input clearing – Verify that the input field is cleared after a successful add.
• Error handling – Mock JSON.parse to throw and ensure the component does not crash (e.g., by wrapping the parse in a try/catch).
• Mock extraction – Move the localStorageMock into a separate __mocks__/localStorage.js file and import it in tests for reuse.
• Coverage of toggleQuest – Add a test that toggles a quest twice and checks that the state returns to the original value.

// tests/__mocks__/localStorage.js
export const localStorageMock = (() => {
  let store = {};
  return {
    getItem(key) { return store[key] ?? null; },
    setItem(key, value) { store[key] = value.toString(); },
    clear() { store = {}; },
    removeItem(key) { delete store[key]; },
  };
})();

// QuestBoard.test.jsx
import { localStorageMock } from '../__mocks__/localStorage';
beforeEach(() => {
  Object.defineProperty(window, 'localStorage', { value: localStorageMock });
  localStorageMock.clear();
});

🔒 Security

• No secrets – The app only uses localStorage; no API keys or credentials are exposed.
• XSS safe – Quest text is rendered inside a <span>; React automatically escapes content.
• Potential risk – localStorage is accessible to any script on the domain. If the app were to be expanded to store sensitive data, consider encrypting or moving to a secure backend.

🧩 Docs/DX

• Folder navigation – The README assumes the user is already in react-webpage/nightly-nightly-survival-quest-board. Add a line:

  cd react-webpage/nightly-nightly-survival-quest-board

• Dependency list – Mention that babel-loader is required for Webpack to compile JSX.
• Build output – Clarify that npm run build outputs to dist/ and that the public/index.html references /dist/main.js.
• Testing environment – Note that tests run in a JSDOM environment and that localStorage is mocked.
• Folder structure – A quick diagram of src/, tests/, public/, and webpack.config.js would aid newcomers.

🧱 Mocks/Fakes

• LocalStorage mock – Currently defined inline; extract to a shared mock file as shown above.
• Missing babel-loader – The Webpack config references babel-loader, but it is not listed in devDependencies. Add:

  "babel-loader": "^9.1.2"

• Potential future mocks – If the component were to fetch data, consider using msw or jest-fetch-mock to stub network calls.

Overall, the PR delivers a clean, functional demo with adequate tests and documentation. Addressing the missing persistence test, adding the babel-loader dependency, and refining the README will bring the implementation up to a production‑ready standard.

[polsala]

🤖 Review by GEMINI Agent

Here's a review of the proposed nightly-survival-quest-board utility:

---

✅ What's solid

• The application is well-structured for a small React project, demonstrating clear separation of concerns between the main component, entry point, and configuration files.
• Effective use of React hooks (useState, useEffect) for managing component state and interacting with localStorage for data persistence.
• The localStorage integration correctly handles loading quests on mount and saving them whenever the quests state changes, ensuring data survives page reloads.
• The use of data-testid attributes throughout the QuestBoard.jsx component greatly enhances testability and makes UI element selection robust.

🧪 Tests

• A dedicated test file (tests/QuestBoard.test.jsx) is provided, utilizing Jest and React Testing Library, which are excellent choices for React component testing.
• The localStorage is effectively mocked within the tests, ensuring deterministic and isolated test runs without side effects from actual browser storage.
• Core functionalities, such as adding a quest and toggling its completion status, are covered by tests.
• Consider expanding test coverage to include:
  • Verifying that quests are loaded correctly from localStorage on initial render.
  • Ensuring that adding an empty or whitespace-only quest does not create a new item.
  • Testing the "Undo" functionality after a quest has been marked as done.

🔒 Security

• The application's current scope, using localStorage for client-side persistence of non-sensitive quest data, is appropriate.
• While the current implementation renders user input directly into a <span> element, which is generally safe, it's a good practice to consider input sanitization if the application were to evolve to allow rich text or more complex user-generated content to prevent potential Cross-Site Scripting (XSS) vulnerabilities.

🧩 Docs/DX

• The README.md provides clear and concise instructions for setting up, running, building, and testing the application, which is excellent for developer experience.
• The package.json scripts (start, build, test) are well-defined and make common development tasks straightforward.
• The project structure is intuitive and easy to navigate for a new contributor.
• To further enhance developer experience and maintainability:
  • Consider replacing inline styles in QuestBoard.jsx with a dedicated CSS file or a CSS-in-JS solution for better styling management and easier customization.
  • Add a .gitignore file to prevent common build artifacts (e.g., dist/, node_modules/) from being accidentally committed, which is standard practice for new projects.
  • The README.md could benefit from a "Usage" section detailing how to interact with the app once it's running (e.g., "Type your quest into the input field and click 'Add Quest'. Click the 'Done' button next to a quest to mark it complete.").

🧱 Mocks/Fakes

• The PR body states "Not applicable; generator did not introduce new mocks." However, the tests/QuestBoard.test.jsx file explicitly includes a manual mock for window.localStorage. This is a good example of a fake/mock for isolating unit tests from browser-specific APIs.
• For consistency and clarity, the PR description should accurately reflect that test-specific mocks were introduced.
• The localStorageMock implementation is robust. If similar mocking patterns are anticipated across multiple test files, consider extracting it into a shared test utility file (e.g., setupTests.js or a __mocks__ directory) to promote reusability and reduce boilerplate.
• Using key={idx} for list items in QuestBoard.jsx is generally discouraged when items can be reordered, added, or removed, as it can lead to React rendering issues and incorrect component state. It's preferable to use a stable, unique ID for each quest object:

  // In addQuest:
  setQuests([...quests, { id: Date.now(), text: input, done: false }]);
  
  // In render:
  <li key={q.id} /* ... */>