Merge feature/v1.12.0: Tage als geschlossen markierbar (Feiertage o. Ä.)

Im Wochenplan lässt sich pro Tag ein optionaler, mehrsprachiger
Schließungsgrund hinterlegen. Geschlossene Tage werden auf der
öffentlichen Speisekarte (Desktop + mobil) und im RSS-Feed als
"Geschlossen" statt mit Essenszeiten angezeigt, im Wochenplan bleibt
"Mahlzeit hinzufügen" für diesen Tag deaktiviert.

CHANGELOG.md

@@ -4,6 +4,39 @@ Alle nennenswerten Änderungen an diesem Projekt werden hier dokumentiert.
 Format angelehnt an [Keep a Changelog](https://keepachangelog.com/de/1.1.0/),
 Versionierung nach [Semantic Versioning](https://semver.org/lang/de/).
 
+## [1.12.0] – 2026-07-20
+
+### Hinzugefügt
+- Einzelne Tage als geschlossen markierbar (z. B. Feiertage,
+  Betriebsausflug) – im Wochenplan lässt sich pro Tag über „Tag
+  schließen" ein optionaler, mehrsprachiger Grund hinterlegen (inkl.
+  automatischer Übersetzung per DeepL, sofern konfiguriert). Ein
+  geschlossener Tag:
+  - blendet in der Gerichte-Verwaltung des Wochenplans „Mahlzeit
+    hinzufügen" für diesen Tag aus (bestehende Einträge lassen sich
+    weiterhin entfernen), lässt sich per „Wieder öffnen" jederzeit
+    rückgängig machen.
+  - zeigt auf der öffentlichen Speisekarte (Desktop-Tabelle und
+    mobile Ansicht) einen „Geschlossen"-Hinweis mit Grund statt der
+    Essenszeiten-Spalten/-Karte für diesen Tag.
+  - erscheint im RSS-Feed als eigener Eintrag mit Schließungsgrund
+    statt eines leeren oder fehlenden Tages.
+  - Neue Tabellen `closed_days`/`closed_day_translations` (Migration
+    `0007_closed_days.sql`).
+
+## [1.11.1] – 2026-07-20
+
+### Behoben
+- Wurde Deutsch im Sprachen-Admin deaktiviert (z. B. um die App auf nur
+  Englisch zu reduzieren), blieb die gesamte App trotzdem auf Deutsch
+  stehen, sowohl im öffentlichen als auch im internen Bereich: `getLocale()`
+  fiel bei fehlendem/ungültigem Sprach-Cookie bisher immer fest auf
+  Deutsch zurück, unabhängig davon, ob Deutsch überhaupt noch aktiv war.
+  Da der Sprachumschalter sich bei nur einer aktiven Sprache zusätzlich
+  automatisch ausblendet, gab es keine Möglichkeit, das über die
+  Oberfläche zu korrigieren. Der Fallback nutzt jetzt Deutsch nur noch,
+  wenn es tatsächlich aktiv ist – sonst die erste aktive Sprache.
+
 ## [1.11.0] – 2026-07-20
 
 ### Hinzugefügt

app/api/closed-days/[date]/route.ts

@@ -0,0 +1,23 @@
+import { NextResponse } from "next/server";
+import { removeClosedDay } from "@/lib/db/closed-days";
+import { authErrorResponse, requireRole } from "@/lib/auth/session";
+import { isSameOrigin } from "@/lib/origin";
+
+export async function DELETE(
+  request: Request,
+  { params }: { params: Promise<{ date: string }> }
+) {
+  if (!isSameOrigin(request)) {
+    return NextResponse.json({ error: "Nicht erlaubt." }, { status: 403 });
+  }
+  try {
+    await requireRole(["staff", "admin"]);
+    const { date } = await params;
+    await removeClosedDay(date);
+    return NextResponse.json({ ok: true });
+  } catch (err) {
+    const res = authErrorResponse(err);
+    if (res) return res;
+    throw err;
+  }
+}

app/api/closed-days/route.ts

@@ -0,0 +1,34 @@
+import { NextResponse } from "next/server";
+import { listClosedDays, setClosedDay } from "@/lib/db/closed-days";
+import { authErrorResponse, requireRole } from "@/lib/auth/session";
+import { isSameOrigin } from "@/lib/origin";
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const from = searchParams.get("from");
+  const to = searchParams.get("to");
+  if (!from || !to) {
+    return NextResponse.json({ error: "invalid_input" }, { status: 400 });
+  }
+  return NextResponse.json(await listClosedDays(from, to));
+}
+
+export async function POST(request: Request) {
+  if (!isSameOrigin(request)) {
+    return NextResponse.json({ error: "Nicht erlaubt." }, { status: 403 });
+  }
+  try {
+    await requireRole(["staff", "admin"]);
+    const body = (await request.json()) as {
+      closed_date: string;
+      reason: string | null;
+      translations?: Record<string, string | null>;
+    };
+    const closedDay = await setClosedDay(body.closed_date, body.reason, body.translations);
+    return NextResponse.json(closedDay, { status: 201 });
+  } catch (err) {
+    const res = authErrorResponse(err);
+    if (res) return res;
+    throw err;
+  }
+}

app/api/translate/route.ts

@@ -14,6 +14,7 @@ const ALLOWED_TABLES: Record<string, { idColumn: string; translationTable: Trans
   sections: { idColumn: "key", translationTable: "section_translations" },
   allergens: { idColumn: "code", translationTable: "allergen_translations" },
   additives: { idColumn: "code", translationTable: "additive_translations" },
+  closed_days: { idColumn: "closed_date", translationTable: "closed_day_translations" },
 };
 
 // Unsere Sprachcodes -> DeepL target_lang. Sprachen ohne Eintrag hier sind

app/feed.xml/route.ts

@@ -1,5 +1,6 @@
 import { query } from "@/lib/db";
 import { loadMenuEntries } from "@/lib/db/menu-entries";
+import { listClosedDays } from "@/lib/db/closed-days";
 import { addDays, entriesFor, formatPrice, mondayOf, todayISO } from "@/lib/menu";
 import { localized, SITE_TITLE } from "@/lib/types";
 import type { Section } from "@/lib/types";
@@ -45,16 +46,24 @@ export async function GET() {
   // Wochennavigation anzeigt.
   const rangeEnd = addDays(monday, 11);
 
-  const [sections, entries] = await Promise.all([
+  const [sections, entries, closedDays] = await Promise.all([
     query<Section>("select * from sections order by sort"),
     loadMenuEntries(monday, rangeEnd),
+    listClosedDays(monday, rangeEnd),
   ]);
 
-  const days = Array.from(new Set(entries.map((e) => e.menu_date))).sort();
+  const days = Array.from(
+    new Set([...entries.map((e) => e.menu_date), ...closedDays.map((c) => c.closed_date)])
+  ).sort();
 
   const items = days
     .map((iso) => {
-      const dayContent = sections
+      const closed = closedDays.find((c) => c.closed_date === iso);
+      const dayContent = closed
+        ? `<p><strong>Geschlossen</strong>${
+            closed.reason ? ` – ${escapeXml(closed.reason)}` : ""
+          }</p>`
+        : sections
             .map((s) => {
               const dishes = entriesFor(entries, iso, s.key);
               if (dishes.length === 0) return "";

app/intern/page.tsx

@@ -7,5 +7,10 @@ export default async function InternPage({
   searchParams: Promise<{ woche?: string }>;
 }) {
   const { woche } = await searchParams;
-  return <WeekEditor monday={mondayOf(woche)} />;
+  return (
+    <WeekEditor
+      monday={mondayOf(woche)}
+      translateEnabled={!!process.env.DEEPL_API_KEY}
+    />
+  );
 }

app/page.tsx

@@ -2,6 +2,7 @@ import Link from "next/link";
 import { query } from "@/lib/db";
 import { loadMenuEntries } from "@/lib/db/menu-entries";
 import { loadTranslations } from "@/lib/db/translations";
+import { listClosedDays } from "@/lib/db/closed-days";
 import { getSettings } from "@/lib/db/settings";
 import {
   addDays,
@@ -43,6 +44,7 @@ export default async function Home({
     sectionTranslations,
     allergenTranslations,
     additiveTranslations,
+    closedDays,
   ] = await Promise.all([
     query<Omit<Section, "translations">>("select key, label, time_range, sort from sections order by sort"),
     loadMenuEntries(monday, friday),
@@ -52,7 +54,9 @@ export default async function Home({
     loadTranslations("section_translations"),
     loadTranslations("allergen_translations"),
     loadTranslations("additive_translations"),
+    listClosedDays(monday, friday),
   ]);
+  const closedDayFor = (iso: string) => closedDays.find((c) => c.closed_date === iso);
 
   const sections: Section[] = sectionRows.map((s) => ({
     ...s,
@@ -130,6 +134,7 @@ export default async function Home({
         monday={monday}
         sections={sections}
         entries={entries}
+        closedDays={closedDays}
         showLabeling={labelingDetailed}
       />
 
@@ -155,13 +160,28 @@ export default async function Home({
             <thead>
               <tr>
                 <th className="section-head w-56" aria-hidden />
-                {days.map((d) => (
+                {days.map((d) => {
+                  const closed = closedDayFor(d.iso);
+                  return (
                     <th key={d.iso} className="day-head">
                       <span className="font-bold">{d.weekday}</span>
                       <br />
                       {formatDateLong(d.iso, dict.dateLocale)}
+                      {closed && (
+                        <div className="mt-1 text-xs font-normal">
+                          <span className="rounded-full bg-red-100 text-red-700 px-2 py-0.5 font-semibold">
+                            {dict.publicMenu.closedLabel}
+                          </span>
+                          {localized(closed, locale) && (
+                            <div className="mt-0.5 opacity-90">
+                              {localized(closed, locale)}
+                            </div>
+                          )}
+                        </div>
+                      )}
                     </th>
-                ))}
+                  );
+                })}
               </tr>
             </thead>
             <tbody>
@@ -173,7 +193,9 @@ export default async function Home({
                   </th>
                   {days.map((d) => (
                     <td key={d.iso} className="cell">
-                      {entriesFor(entries, d.iso, s.key).map((e) => {
+                      {closedDayFor(d.iso)
+                        ? null
+                        : entriesFor(entries, d.iso, s.key).map((e) => {
                             const codes = dishCodes(e.dish);
                             return (
                               <div key={e.id} className="dish">

components/PublicMobileMenu.tsx

@@ -19,7 +19,7 @@ import {
   weekdayIndex,
 } from "@/lib/menu";
 import { localized } from "@/lib/types";
-import type { MenuEntry, Section } from "@/lib/types";
+import type { ClosedDay, MenuEntry, Section } from "@/lib/types";
 import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
 import LanguageSwitcher from "@/components/i18n/LanguageSwitcher";
 
@@ -27,11 +27,13 @@ export default function PublicMobileMenu({
   monday,
   sections,
   entries,
+  closedDays,
   showLabeling,
 }: {
   monday: string;
   sections: Section[];
   entries: MenuEntry[];
+  closedDays: ClosedDay[];
   showLabeling: boolean;
 }) {
   const router = useRouter();
@@ -60,11 +62,18 @@ export default function PublicMobileMenu({
   }
 
   function renderDay(day: { weekday: string; iso: string }) {
+    const closed = closedDays.find((c) => c.closed_date === day.iso);
     return (
       <div key={day.iso} className="mb-4 last:mb-0">
         <h3 className="font-bold text-[var(--c-primary)] mb-2">
           {day.weekday} · {formatDateLong(day.iso, dict.dateLocale)}
         </h3>
+        {closed ? (
+          <div className="rounded-md border border-red-200 bg-red-50 px-3 py-2 text-sm text-red-700">
+            <span className="font-semibold">{dict.publicMenu.closedLabel}</span>
+            {localized(closed, locale) && <span> – {localized(closed, locale)}</span>}
+          </div>
+        ) : (
           <div className="space-y-3">
             {sections.map((s) => {
               const items = entriesFor(entries, day.iso, s.key);
@@ -101,6 +110,7 @@ export default function PublicMobileMenu({
               );
             })}
           </div>
+        )}
       </div>
     );
   }

components/WeekEditor.tsx

@@ -14,12 +14,19 @@ import {
 } from "@/lib/menu";
 import { formatMessage } from "@/lib/i18n/shared";
 import { localized } from "@/lib/types";
-import type { Dish, MenuEntry, Section } from "@/lib/types";
+import type { ClosedDay, Dish, MenuEntry, Section } from "@/lib/types";
-import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
+import { useDict, useLanguages, useLocale } from "@/components/i18n/LocaleProvider";
 
-export default function WeekEditor({ monday }: { monday: string }) {
+export default function WeekEditor({
+  monday,
+  translateEnabled,
+}: {
+  monday: string;
+  translateEnabled: boolean;
+}) {
   const dict = useDict();
   const locale = useLocale();
+  const languages = useLanguages().filter((l) => l.code !== "de");
   const friday = addDays(monday, 4);
   const days = dict.weekdays.long.map((weekday, i) => ({
     weekday,
@@ -32,6 +39,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
   const [sections, setSections] = useState<Section[]>([]);
   const [dishes, setDishes] = useState<Dish[]>([]);
   const [entries, setEntries] = useState<MenuEntry[]>([]);
+  const [closedDays, setClosedDays] = useState<ClosedDay[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
   // Zelle, in der gerade ein Gericht hinzugefügt wird
@@ -43,6 +51,19 @@ export default function WeekEditor({ monday }: { monday: string }) {
   // Mobil: ein Tag auf einmal statt aller fünf gleichzeitig
   const [selectedDayIdx, setSelectedDayIdx] = useState(todayIdx >= 0 ? todayIdx : 0);
 
+  // Tag, für den gerade das Schließen-Formular offen ist
+  const [closingIso, setClosingIso] = useState<string | null>(null);
+  const [closeReason, setCloseReason] = useState("");
+  const [closeTranslations, setCloseTranslations] = useState<Record<string, string>>({});
+  const [closeTranslateState, setCloseTranslateState] = useState<"idle" | "busy" | "done">(
+    "idle"
+  );
+  const [closeBusy, setCloseBusy] = useState(false);
+
+  function closedDayFor(iso: string): ClosedDay | undefined {
+    return closedDays.find((c) => c.closed_date === iso);
+  }
+
   function startAdding(iso: string, section: string) {
     setAdding({ iso, section });
     setSelectedDish("");
@@ -57,17 +78,19 @@ export default function WeekEditor({ monday }: { monday: string }) {
 
   const load = useCallback(async () => {
     setError(null);
-    const [se, di, en] = await Promise.all([
+    const [se, di, en, cd] = await Promise.all([
       fetch("/api/sections"),
       fetch("/api/dishes"),
       fetch(`/api/menu-entries?from=${monday}&to=${friday}`),
+      fetch(`/api/closed-days?from=${monday}&to=${friday}`),
     ]);
-    if (!se.ok || !di.ok || !en.ok) {
+    if (!se.ok || !di.ok || !en.ok || !cd.ok) {
       setError(formatMessage(dict.weekEditor.loadError, { message: "load failed" }));
     } else {
       setSections(await se.json());
       setDishes(await di.json());
       setEntries(await en.json());
+      setClosedDays(await cd.json());
     }
     setLoading(false);
   }, [monday, friday, dict]);
@@ -107,6 +130,77 @@ export default function WeekEditor({ monday }: { monday: string }) {
     await load();
   }
 
+  function startClosing(iso: string) {
+    const existing = closedDayFor(iso);
+    setClosingIso(iso);
+    setCloseReason(existing?.reason ?? "");
+    setCloseTranslations({ ...(existing?.translations ?? {}) });
+    setCloseTranslateState("idle");
+  }
+
+  function cancelClosing() {
+    setClosingIso(null);
+  }
+
+  async function saveClosing() {
+    if (!closingIso) return;
+    setCloseBusy(true);
+    setError(null);
+    const res = await fetch("/api/closed-days", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+        closed_date: closingIso,
+        reason: closeReason.trim() || null,
+        translations: closeTranslations,
+      }),
+    });
+    setCloseBusy(false);
+    if (!res.ok) {
+      setError(formatMessage(dict.weekEditor.saveError, { message: String(res.status) }));
+      return;
+    }
+    setClosingIso(null);
+    await load();
+  }
+
+  async function reopenDay(iso: string) {
+    setCloseBusy(true);
+    setError(null);
+    const res = await fetch(`/api/closed-days/${iso}`, { method: "DELETE" });
+    setCloseBusy(false);
+    if (!res.ok) {
+      setError(formatMessage(dict.weekEditor.deleteError, { message: String(res.status) }));
+      return;
+    }
+    if (closingIso === iso) setClosingIso(null);
+    await load();
+  }
+
+  async function autoTranslateClosing() {
+    if (!closingIso || !closeReason.trim()) return;
+    setCloseTranslateState("busy");
+    setError(null);
+    try {
+      const res = await fetch("/api/translate", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          table: "closed_days",
+          id: closedDayFor(closingIso) ? closingIso : null,
+          text: closeReason.trim(),
+        }),
+      });
+      const data = await res.json();
+      if (!res.ok) throw new Error(data?.error ?? `Fehler (${res.status})`);
+      setCloseTranslations((prev) => ({ ...prev, ...(data.translations ?? {}) }));
+      setCloseTranslateState("done");
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+      setCloseTranslateState("idle");
+    }
+  }
+
   const [hintBefore, hintAfter] = dict.weekEditor.newDishesHint.split("{link}");
   const selectedDishObj = dishes.find((d) => d.id === selectedDish) ?? null;
   const query = dishSearch.trim().toLowerCase();
@@ -114,6 +208,121 @@ export default function WeekEditor({ monday }: { monday: string }) {
     ? dishes.filter((d) => localized(d, locale).toLowerCase().includes(query))
     : dishes;
 
+  // Kleine Anzeige/Umschaltung unter dem Tagesdatum: "Geschlossen" +
+  // Wieder-öffnen-Button, sonst ein dezenter "Tag schließen"-Link.
+  function renderClosureBadge(iso: string) {
+    const closed = closedDayFor(iso);
+    if (closed) {
+      return (
+        <div className="mt-1 flex flex-wrap items-center justify-center gap-1 text-xs">
+          <span className="rounded-full bg-red-100 text-red-700 px-2 py-0.5 font-semibold">
+            {dict.weekEditor.closedLabel}
+          </span>
+          <button
+            type="button"
+            className="text-gray-400 hover:text-[var(--c-primary)] underline"
+            onClick={() => reopenDay(iso)}
+            disabled={closeBusy}
+          >
+            {dict.weekEditor.reopenDay}
+          </button>
+        </div>
+      );
+    }
+    return (
+      <button
+        type="button"
+        className="mt-1 text-xs text-gray-400 hover:text-[var(--c-primary)] underline"
+        onClick={() => startClosing(iso)}
+      >
+        {dict.weekEditor.closeDay}
+      </button>
+    );
+  }
+
+  // Formular zum Schließen/Bearbeiten eines Tages – ein gemeinsames
+  // Formular für Desktop-Tabelle und mobile Tagesansicht, da immer nur
+  // ein Tag gleichzeitig bearbeitet werden kann.
+  function renderClosingForm() {
+    if (!closingIso) return null;
+    const day = days.find((d) => d.iso === closingIso);
+    return (
+      <form
+        onSubmit={(e) => {
+          e.preventDefault();
+          saveClosing();
+        }}
+        className="card mb-4 space-y-3"
+      >
+        <h2 className="font-semibold">
+          {dict.weekEditor.closeDay}: {day?.weekday} ·{" "}
+          {formatDateLong(closingIso, dict.dateLocale)}
+        </h2>
+        <div>
+          <label className="label" htmlFor="closed-reason">
+            {dict.weekEditor.closedReasonLabel}
+          </label>
+          <input
+            id="closed-reason"
+            className="input"
+            placeholder={dict.weekEditor.closedReasonPlaceholder}
+            value={closeReason}
+            onChange={(e) => setCloseReason(e.target.value)}
+          />
+        </div>
+        {languages.length > 0 && (
+          <div className="grid gap-3 sm:grid-cols-2">
+            {languages.map((lang) => (
+              <div key={lang.code}>
+                <label className="label" htmlFor={`closed-reason-${lang.code}`}>
+                  {lang.label}
+                </label>
+                <input
+                  id={`closed-reason-${lang.code}`}
+                  className="input"
+                  value={closeTranslations[lang.code] ?? ""}
+                  onChange={(e) =>
+                    setCloseTranslations({
+                      ...closeTranslations,
+                      [lang.code]: e.target.value,
+                    })
+                  }
+                />
+              </div>
+            ))}
+          </div>
+        )}
+        {translateEnabled && languages.length > 0 && (
+          <div>
+            <button
+              type="button"
+              className="btn btn-neutral"
+              onClick={autoTranslateClosing}
+              disabled={closeTranslateState === "busy" || !closeReason.trim()}
+            >
+              {closeTranslateState === "busy"
+                ? dict.dishManager.translating
+                : dict.dishManager.autoTranslate}
+            </button>
+            {closeTranslateState === "done" && (
+              <span className="ml-2 text-sm text-green-700">
+                {dict.dishManager.translated}
+              </span>
+            )}
+          </div>
+        )}
+        <div className="flex gap-2">
+          <button type="submit" className="btn btn-add" disabled={closeBusy}>
+            {dict.common.save}
+          </button>
+          <button type="button" className="btn btn-neutral" onClick={cancelClosing}>
+            {dict.common.cancel}
+          </button>
+        </div>
+      </form>
+    );
+  }
+
   // Inhalt einer Tag/Essenszeit-Zelle: Eintragsliste + "hinzufügen"-Flow.
   // Identisches Fragment für Desktop-Tabelle und Mobile-Karten, damit der
   // Bearbeitungs-Zustand (adding/selectedDish/dishSearch) nicht dupliziert
@@ -121,6 +330,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
   // unabhängig davon, welche Ansicht gerade rendert.
   function renderCell(iso: string, sectionKey: string) {
     const isAdding = adding?.iso === iso && adding?.section === sectionKey;
+    const closed = Boolean(closedDayFor(iso));
     return (
       <>
         {entriesFor(entries, iso, sectionKey).map((e) => {
@@ -143,7 +353,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
             </div>
           );
         })}
-        {isAdding ? (
+        {closed ? null : isAdding ? (
           <div className="mt-2 space-y-1 text-left">
             {selectedDishObj ? (
               <div className="flex items-center gap-1 text-sm">
@@ -250,6 +460,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
           {error}
         </p>
       )}
+      {renderClosingForm()}
       {loading ? (
         <p className="text-gray-500">{dict.weekEditor.loading}</p>
       ) : (
@@ -272,9 +483,10 @@ export default function WeekEditor({ monday }: { monday: string }) {
                 </button>
               ))}
             </div>
-            <h2 className="font-bold text-[var(--c-primary)] mb-2">
+            <h2 className="font-bold text-[var(--c-primary)] mb-1">
               {selectedDay.weekday} · {formatDateLong(selectedDay.iso, dict.dateLocale)}
             </h2>
+            <div className="mb-2">{renderClosureBadge(selectedDay.iso)}</div>
             <div className="space-y-3">
               {sections.map((s) => (
                 <div key={s.key} className="rounded-md border border-gray-200 overflow-hidden">
@@ -301,6 +513,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
                       <span className="font-bold">{d.weekday}</span>
                       <br />
                       {formatDateLong(d.iso, dict.dateLocale)}
+                      {renderClosureBadge(d.iso)}
                     </th>
                   ))}
                 </tr>

db/migrations/0007_closed_days.sql

@@ -0,0 +1,18 @@
+-- Kantine an einzelnen Tagen als geschlossen markieren (Feiertage o. Ä.),
+-- mit optionalem, mehrsprachigem Grund. Ein Tag ohne Zeile hier gilt als
+-- regulär geöffnet.
+create table closed_days (
+  closed_date date primary key,
+  reason      text,
+  created_at  timestamptz not null default now()
+);
+
+-- Wert-Spalte heißt bewusst "name" (nicht "reason"), damit die generische
+-- Zugriffsschicht in lib/db/translations.ts unverändert funktioniert –
+-- dieselbe Konvention wie bei section_translations.name für sections.label.
+create table closed_day_translations (
+  closed_date   date not null references closed_days(closed_date) on delete cascade,
+  language_code text not null references languages(code) on delete cascade,
+  name          text not null,
+  primary key (closed_date, language_code)
+);

lib/db/closed-days.ts

@@ -0,0 +1,50 @@
+import "server-only";
+import { query, queryOne } from "@/lib/db";
+import { loadTranslationsFor, replaceTranslations } from "./translations";
+import type { ClosedDay } from "@/lib/types";
+
+interface ClosedDayRow {
+  closed_date: string;
+  reason: string | null;
+}
+
+/** Geschlossene Tage in einem Zeitraum (für Wochenplan/öffentliche Speisekarte/RSS). */
+export async function listClosedDays(fromISO: string, toISO: string): Promise<ClosedDay[]> {
+  const rows = await query<ClosedDayRow>(
+    "select closed_date, reason from closed_days where closed_date between $1 and $2",
+    [fromISO, toISO]
+  );
+  if (rows.length === 0) return [];
+  const translations = await loadTranslationsFor(
+    "closed_day_translations",
+    rows.map((r) => r.closed_date)
+  );
+  return rows.map((r) => ({
+    ...r,
+    translations: translations.get(r.closed_date) ?? {},
+  }));
+}
+
+/** Tag als geschlossen markieren (oder bestehenden Grund aktualisieren). */
+export async function setClosedDay(
+  date: string,
+  reason: string | null,
+  translations?: Record<string, string | null>
+): Promise<ClosedDay> {
+  const row = (await queryOne<ClosedDayRow>(
+    `insert into closed_days (closed_date, reason) values ($1, $2)
+     on conflict (closed_date) do update set reason = excluded.reason
+     returning closed_date, reason`,
+    [date, reason]
+  ))!;
+  if (translations) {
+    await replaceTranslations("closed_day_translations", row.closed_date, translations);
+  }
+  const loaded = await loadTranslationsFor("closed_day_translations", [row.closed_date]);
+  return { ...row, translations: loaded.get(row.closed_date) ?? {} };
+}
+
+/** Tag wieder öffnen (löscht auch alle Übersetzungen des Grunds per Cascade). */
+export async function removeClosedDay(date: string): Promise<void> {
+  await query("delete from closed_days where closed_date = $1", [date]);
+}

lib/db/translations.ts

@@ -11,13 +11,15 @@ export type TranslationTable =
   | "dish_translations"
   | "section_translations"
   | "allergen_translations"
-  | "additive_translations";
+  | "additive_translations"
+  | "closed_day_translations";
 
 const ID_COLUMN: Record<TranslationTable, string> = {
   dish_translations: "dish_id",
   section_translations: "section_key",
   allergen_translations: "allergen_code",
   additive_translations: "additive_code",
+  closed_day_translations: "closed_date",
 };
 
 /** Alle Übersetzungen einer Tabelle, gruppiert nach Eltern-ID. */

lib/i18n/dictionaries.ts

@@ -75,6 +75,7 @@ const de = {
     suggestDish: "Rezept vorschlagen",
     noEntry: "–",
     rssFeed: "RSS-Feed abonnieren",
+    closedLabel: "Geschlossen",
   },
   weekEditor: {
     title: "Wochenplan",
@@ -87,6 +88,11 @@ const de = {
     duplicateEntry: "Dieses Gericht ist an diesem Tag bereits zugewiesen.",
     saveError: "Speichern fehlgeschlagen: {message}",
     deleteError: "Löschen fehlgeschlagen: {message}",
+    closeDay: "Tag schließen",
+    reopenDay: "Wieder öffnen",
+    closedLabel: "Geschlossen",
+    closedReasonLabel: "Grund (optional)",
+    closedReasonPlaceholder: "z. B. Weihnachtsfeiertage",
   },
   dishManager: {
     title: "Gerichte",

lib/i18n/index.ts

@@ -14,12 +14,15 @@ export * from "./shared";
 
 /** Aktuelle Sprache aus dem Cookie lesen, validiert gegen die aktiven
  *  Sprachen (Server-Komponenten). Ungültig oder nicht mehr aktiv →
- *  Basis-Sprache. */
+ *  Basis-Sprache, sofern die noch aktiv ist – sonst die erste aktive
+ *  Sprache (z. B. wenn Deutsch im Admin-Bereich deaktiviert wurde). */
 export async function getLocale(): Promise<Locale> {
   const store = await cookies();
   const value = store.get(LOCALE_COOKIE)?.value;
   const active = await listActiveLanguageCodes();
-  return isLocale(value, active) ? value : DEFAULT_LOCALE;
+  if (isLocale(value, active)) return value;
+  if (active.includes(DEFAULT_LOCALE)) return DEFAULT_LOCALE;
+  return active[0] ?? DEFAULT_LOCALE;
 }
 
 /** Wörterbuch für eine Sprache. Nicht-deutsche Sprachen werden aus der

lib/types.ts

@@ -50,11 +50,20 @@ export interface DishSuggestion {
   created_at: string;
 }
 
+export interface ClosedDay {
+  closed_date: string;
+  reason: string | null;
+  translations: Record<string, string>;
+}
+
 /** Übersetzten Namen für die aktuelle Sprache liefern, sonst Deutsch als Fallback. */
 export function localized(
   item: {
     name?: string;
     label?: string;
+    // Grund eines geschlossenen Tages (s. ClosedDay) – optional, anders
+    // als name/label bei den übrigen Inhaltstypen.
+    reason?: string | null;
     // Neue, dynamische Form (Gerichte/Essenszeiten/Allergene/
     // Zusatzstoffe, s. lib/db/translations.ts) – Sprachcode -> Text.
     translations?: Record<string, string>;
@@ -68,7 +77,7 @@ export function localized(
   },
   locale: string
 ): string {
-  const de = item.name ?? item.label ?? "";
+  const de = item.name ?? item.label ?? item.reason ?? "";
   if (locale === "de") return de;
   if (item.translations) return item.translations[locale] || de;
   if (locale === "en") return item.name_en || item.label_en || de;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "canteen-menu",
-  "version": "1.11.0",
+  "version": "1.12.0",
   "private": true,
   "scripts": {
     "predev": "node --env-file-if-exists=.env.local db/migrate.mjs && node --env-file-if-exists=.env.local scripts/bootstrap-admin.mjs",