Files
Calendar_Frontend/lib/api-errors.ts
PaddyandClaude Opus 5.5 0cda40f85e Rewrite the calendar frontend in Next.js
Replaces the Angular 18 app with Next.js 16 / React 19 / Tailwind 4 / shadcn,
the same stack and design system as nachklang-feedback, planned in
docs/rewrite-plan.md.

- Admin: all calendars in one mobile-friendly list (month groups, calendar
  chips, Kommend/Vergangen/Alle, search, sort, filters in the URL), an edit
  sheet for create/edit/duplicate/delete, publish confirmation, and an
  "Abonnieren" dialog with subscription links for every calendar.
- Public landing page: subscribe links from env instead of hardcoded, plus
  the next public events, server-rendered and revalidated every 5 minutes.
- All times handled explicitly as Europe/Berlin; whole-day events stored as
  00:00-23:59. Fixes carried over from the Angular app: the move dialog
  leaking a cancelled calendar change, saves that looked saved when they
  failed, in-place Date mutation, and duplicated calendar-id mappings.
- Same shared-session auth as before (proxy.ts gate, /admin/me, 401 vs 403).
- 112 Vitest tests over lib/; docs in docs/ (architecture, features,
  gotchas, API wish list, deployment).

Needs the API branch feature/calendar-ical-escaping-subscriptions deployed
first (GET /calendar/events/subscriptions).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-28 22:15:59 +02:00

32 lines
1.3 KiB
TypeScript

import { ApiError } from "@/lib/api";
/**
* What to tell an editor when a call fails. German, one sentence, no status
* codes up front - the code is appended for anything unexpected, so a
* screenshot of the message is still useful to whoever debugs it.
*
* 401 is listed for completeness; callers should send the user to the login
* page instead of showing it (see `isSessionExpired`).
*/
export const describeApiError = (error: unknown): string => {
if (!(error instanceof ApiError)) {
return "Unerwarteter Fehler. Bitte versuche es erneut.";
}
switch (error.status) {
case 0:
return "Keine Verbindung zum Server. Bitte prüfe deine Internetverbindung.";
case 401:
return "Deine Sitzung ist abgelaufen.";
case 403:
return "Dein Konto hat keine Berechtigung (mehr) für den Kalender.";
case 200:
// A 200 that the client decided was a failure (e.g. "0 rows were updated") carries its own German message.
return error.message;
default:
return `Der Server hat einen Fehler gemeldet (${error.status}). Bitte versuche es erneut.`;
}
};
/** Nobody is signed in any more - the one case worth a trip to the login page. */
export const isSessionExpired = (error: unknown): boolean => error instanceof ApiError && error.status === 401;