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tibi-svelte-starter/.github/instructions/frontend.instructions.md
Sebastian Frank 602fd6101f feat: Add new input, select, and tooltip components with validation and accessibility features
- Introduced Input component with support for various input types, validation, and error handling.
- Added MedialibImage component for displaying images with lazy loading and caption support.
- Implemented Pagination component for navigating through pages with ellipsis for large page sets.
- Created SearchableSelect component allowing users to search and select options from a dropdown.
- Developed Select component with integrated styling and validation.
- Added Tooltip component for displaying additional information on hover/focus.
2026-02-25 20:15:23 +00:00

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Frontend Svelte SPA structure and conventions. frontend/src/**

Frontend

  • SPA entry point is frontend/src/index.ts, main component is frontend/src/App.svelte.
  • Component organization: lib/ for utilities and stores, keep route components in a routes/ folder when needed, css/ for styles.
  • Use PascalCase component names and export props at the top of the <script> tag; keep code/comments in English.
  • SSR safety: guard browser-only code with typeof window !== "undefined".
  • API behavior: PUT responses return only changed fields; filter by id uses _id; API requests reject non-2xx with { response, data } and error payload in error.data.error.

Tailwind CSS

  • Always use canonical Tailwind utility classes instead of arbitrary values when a standard equivalent exists (e.g. h-16.5 not h-[66px], min-h-3 not min-h-[12px]).
  • Only use arbitrary values ([...]) when no standard utility covers the needed value.

i18n

  • svelte-i18n is configured in frontend/src/lib/i18n/index.ts with lazy loading for locale files.
  • Locale files live in frontend/src/lib/i18n/locales/{lang}.json.
  • URL-based language routing: /{lang}/... (e.g. /de/, /en/about).
  • Language utilities in frontend/src/lib/i18n.ts: extractLanguageFromPath(), localizedPath(), getLanguageSwitchUrl().
  • Use $_("key") from svelte-i18n for translations in components.

E2E Tests (Playwright)

  • When developing frontend features: extend or create corresponding E2E tests in tests/e2e/.
  • Shared fixtures and helpers in tests/e2e/fixtures.ts: waitForSpaReady(page), navigateToRoute(page, path), clickSpaLink(page, selector), authedPage fixture.
  • After frontend changes, run only the affected E2E tests: npx playwright test tests/e2e/filename.spec.ts or -g "test name".
  • When tests fail, clarify whether the frontend or the test needs adjustment coordinate with the user.