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>
66 lines
2.5 KiB
TypeScript
66 lines
2.5 KiB
TypeScript
import { parseApiEvents } from "@/lib/events";
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import { matchesRange, sortEvents } from "@/lib/filter";
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import type { ApiEvent, CalendarEvent } from "@/lib/types";
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/**
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* The public calendar as the landing page shows it: subscription links and
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* the next few events. Pure, apart from `fetchUpcomingPublicEvents`.
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*
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* The public feed needs no credential at all - nachklang.art reads the same
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* endpoint anonymously - so this runs on the server without a session.
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*/
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const PUBLIC_PATH = "/calendar/events/public";
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/** https://api.nachklang.art/calendar/events/public/ical */
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export const icalUrl = (apiBaseUrl: string): string => `${apiBaseUrl}${PUBLIC_PATH}/ical`;
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/**
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* Any iCal URL as a `webcal://` link, which Apple Calendar (and most desktop
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* clients) open as "subscribe" rather than "download". The scheme replaces
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* http(s) whichever the API uses - calendar apps fetch it over https for an
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* https host.
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*/
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export const toWebcal = (ical: string): string => ical.replace(/^https?:\/\//, "webcal://");
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/** Google Calendar's "add by URL" deep link for any iCal URL. It wants the webcal form, URL-encoded. */
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export const toGoogleCalendar = (ical: string): string =>
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`https://calendar.google.com/calendar/r?cid=${encodeURIComponent(toWebcal(ical))}`;
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export const webcalUrl = (apiBaseUrl: string): string => toWebcal(icalUrl(apiBaseUrl));
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export const googleCalendarUrl = (apiBaseUrl: string): string => toGoogleCalendar(icalUrl(apiBaseUrl));
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/** Upcoming (not yet over, Berlin days) public events, earliest first. */
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export const selectUpcoming = (rows: ApiEvent[], now: Date, limit: number): CalendarEvent[] =>
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sortEvents(
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parseApiEvents(rows).filter((e) => matchesRange(e, "future", now)),
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"start_asc",
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now,
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).slice(0, limit);
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/**
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* Server-side fetch, cached for five minutes (Next's `revalidate`), so the
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* landing page is static HTML that refreshes itself rather than a request to
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* the API per visitor.
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*
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* Null on any failure. The subscription links are the page's real job and
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* must not depend on the API answering - that includes `next build` on a
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* machine that cannot reach it.
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*/
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export const fetchUpcomingPublicEvents = async (
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apiBaseUrl: string,
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now: Date,
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limit: number,
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): Promise<CalendarEvent[] | null> => {
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try {
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const res = await fetch(`${apiBaseUrl}${PUBLIC_PATH}/json`, { next: { revalidate: 300 } });
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if (!res.ok) {
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return null;
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}
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return selectUpcoming((await res.json()) as ApiEvent[], now, limit);
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} catch {
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return null;
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}
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};
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