Bereiche vollständig verwaltbar (anlegen/bearbeiten/löschen/Uhrzeit)

Migration 0006: sections.key bekommt einen automatisch generierten
Schlüssel (wie dishes.id), menu_entries.section_key kaskadiert beim
Löschen eines Bereichs, neue RLS-Policy erlaubt Kantinenmitarbeitern/
Admins Schreibzugriff auf sections.

Neue Seite „Bereiche" im Kantinen-Bereich (SectionManager): Bereiche
anlegen, umbenennen (inkl. EN/PL), Uhrzeit setzen, löschen und per
Pfeil-Buttons neu anordnen.

app/intern/bereiche/page.tsx

@@ -0,0 +1,5 @@
+import SectionManager from "@/components/SectionManager";
+
+export default function BereichePage() {
+  return <SectionManager />;
+}

components/AppHeader.tsx

@@ -23,6 +23,7 @@ export default function AppHeader({
 
   const menuLinks = [
     { href: "/intern", label: dict.header.weekPlan },
+    { href: "/intern/bereiche", label: dict.header.sections },
     { href: "/intern/gerichte", label: dict.header.dishes },
     { href: "/intern/kennzeichnung", label: dict.header.labels },
     { href: "/intern/vorschlaege", label: dict.header.suggestions },

components/SectionManager.tsx

@@ -0,0 +1,298 @@
+"use client";
+
+// Verwaltung der Speiseplan-Bereiche (Brotzeit, Mittagessen, …):
+// anlegen, umbenennen, Uhrzeit ändern, löschen, Reihenfolge anpassen.
+
+import { useCallback, useEffect, useMemo, useState } from "react";
+import { createClient } from "@/lib/supabase/client";
+import { formatMessage } from "@/lib/i18n/shared";
+import { localized } from "@/lib/types";
+import type { Section } from "@/lib/types";
+import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
+
+interface SectionForm {
+  key: string | null; // null = neuer Bereich
+  label: string;
+  labelEn: string;
+  labelPl: string;
+  timeFrom: string;
+  timeTo: string;
+}
+
+const EMPTY_FORM: SectionForm = {
+  key: null,
+  label: "",
+  labelEn: "",
+  labelPl: "",
+  timeFrom: "",
+  timeTo: "",
+};
+
+function splitTimeRange(range: string): { from: string; to: string } {
+  const [from, to] = range.split("-").map((s) => s.trim());
+  return { from: from ?? "", to: to ?? "" };
+}
+
+export default function SectionManager() {
+  const supabase = useMemo(() => createClient(), []);
+  const dict = useDict();
+  const locale = useLocale();
+  const [sections, setSections] = useState<Section[]>([]);
+  const [form, setForm] = useState<SectionForm | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [busy, setBusy] = useState(false);
+
+  const load = useCallback(async () => {
+    const { data, error } = await supabase.from("sections").select("*").order("sort");
+    if (error)
+      setError(formatMessage(dict.sectionManager.loadError, { message: error.message }));
+    else setSections(data as Section[]);
+    setLoading(false);
+  }, [supabase, dict]);
+
+  useEffect(() => {
+    load();
+  }, [load]);
+
+  async function save(e: React.FormEvent) {
+    e.preventDefault();
+    if (!form) return;
+    setError(null);
+    const label = form.label.trim();
+    if (!label || !form.timeFrom || !form.timeTo) return;
+    const payload = {
+      label,
+      label_en: form.labelEn.trim() || null,
+      label_pl: form.labelPl.trim() || null,
+      time_range: `${form.timeFrom} - ${form.timeTo}`,
+    };
+
+    let dbError;
+    if (form.key) {
+      ({ error: dbError } = await supabase
+        .from("sections")
+        .update(payload)
+        .eq("key", form.key));
+    } else {
+      // Frisch aus der DB lesen statt den lokalen State zu nutzen, damit
+      // ein veralteter Snapshot nicht zu doppelten sort-Werten führt.
+      const { data: maxRow } = await supabase
+        .from("sections")
+        .select("sort")
+        .order("sort", { ascending: false })
+        .limit(1)
+        .maybeSingle();
+      ({ error: dbError } = await supabase
+        .from("sections")
+        .insert({ ...payload, sort: (maxRow?.sort ?? 0) + 1 }));
+    }
+    if (dbError) {
+      setError(formatMessage(dict.sectionManager.saveError, { message: dbError.message }));
+      return;
+    }
+    setForm(null);
+    await load();
+  }
+
+  async function remove(section: Section) {
+    if (
+      !window.confirm(
+        formatMessage(dict.sectionManager.confirmDelete, { name: section.label })
+      )
+    )
+      return;
+    const { error } = await supabase.from("sections").delete().eq("key", section.key);
+    if (error)
+      setError(formatMessage(dict.sectionManager.deleteError, { message: error.message }));
+    await load();
+  }
+
+  async function move(section: Section, direction: -1 | 1) {
+    const idx = sections.findIndex((s) => s.key === section.key);
+    const neighbor = sections[idx + direction];
+    if (!neighbor) return;
+    setBusy(true);
+    setError(null);
+    const [r1, r2] = await Promise.all([
+      supabase.from("sections").update({ sort: neighbor.sort }).eq("key", section.key),
+      supabase.from("sections").update({ sort: section.sort }).eq("key", neighbor.key),
+    ]);
+    const dbError = r1.error ?? r2.error;
+    if (dbError)
+      setError(formatMessage(dict.sectionManager.saveError, { message: dbError.message }));
+    setBusy(false);
+    await load();
+  }
+
+  return (
+    <div className="max-w-3xl">
+      <div className="flex items-center gap-3 mb-4">
+        <h1 className="text-xl font-bold text-[var(--c-primary)] mr-auto">
+          {dict.sectionManager.title}
+        </h1>
+        <button
+          type="button"
+          className="btn btn-add"
+          onClick={() => setForm(EMPTY_FORM)}
+        >
+          {dict.sectionManager.newSection}
+        </button>
+      </div>
+
+      {error && (
+        <p className="mb-3 text-sm text-[var(--c-del)]" role="alert">
+          {error}
+        </p>
+      )}
+
+      {form && (
+        <form onSubmit={save} className="card mb-4 space-y-4">
+          <h2 className="font-semibold">
+            {form.key ? dict.sectionManager.editSection : dict.sectionManager.newSection}
+          </h2>
+          <div>
+            <label className="label" htmlFor="section-label">
+              {dict.sectionManager.nameLabel}
+            </label>
+            <input
+              id="section-label"
+              className="input"
+              value={form.label}
+              onChange={(e) => setForm({ ...form, label: e.target.value })}
+              required
+            />
+          </div>
+          <div className="grid gap-3 sm:grid-cols-2">
+            <div>
+              <label className="label" htmlFor="section-label-en">
+                {dict.sectionManager.nameEnLabel}
+              </label>
+              <input
+                id="section-label-en"
+                className="input"
+                value={form.labelEn}
+                onChange={(e) => setForm({ ...form, labelEn: e.target.value })}
+              />
+            </div>
+            <div>
+              <label className="label" htmlFor="section-label-pl">
+                {dict.sectionManager.namePlLabel}
+              </label>
+              <input
+                id="section-label-pl"
+                className="input"
+                value={form.labelPl}
+                onChange={(e) => setForm({ ...form, labelPl: e.target.value })}
+              />
+            </div>
+          </div>
+          <div className="flex gap-3">
+            <div className="max-w-32">
+              <label className="label" htmlFor="section-time-from">
+                {dict.sectionManager.timeFrom}
+              </label>
+              <input
+                id="section-time-from"
+                type="time"
+                className="input"
+                value={form.timeFrom}
+                onChange={(e) => setForm({ ...form, timeFrom: e.target.value })}
+                required
+              />
+            </div>
+            <div className="max-w-32">
+              <label className="label" htmlFor="section-time-to">
+                {dict.sectionManager.timeTo}
+              </label>
+              <input
+                id="section-time-to"
+                type="time"
+                className="input"
+                value={form.timeTo}
+                onChange={(e) => setForm({ ...form, timeTo: e.target.value })}
+                required
+              />
+            </div>
+          </div>
+          <div className="flex gap-2">
+            <button type="submit" className="btn btn-add">
+              {dict.common.save}
+            </button>
+            <button
+              type="button"
+              className="btn btn-neutral"
+              onClick={() => setForm(null)}
+            >
+              {dict.common.cancel}
+            </button>
+          </div>
+        </form>
+      )}
+
+      {loading ? (
+        <p className="text-gray-500">{dict.common.loading}</p>
+      ) : (
+        <ul className="divide-y divide-gray-200 border border-gray-200 rounded-md bg-white">
+          {sections.map((section, idx) => (
+            <li key={section.key} className="flex items-center gap-3 px-4 py-2">
+              <div className="flex flex-col">
+                <button
+                  type="button"
+                  className="text-gray-400 hover:text-[var(--c-primary)] disabled:opacity-30"
+                  onClick={() => move(section, -1)}
+                  disabled={busy || idx === 0}
+                  aria-label={dict.sectionManager.moveUp}
+                  title={dict.sectionManager.moveUp}
+                >
+                  ▲
+                </button>
+                <button
+                  type="button"
+                  className="text-gray-400 hover:text-[var(--c-primary)] disabled:opacity-30"
+                  onClick={() => move(section, 1)}
+                  disabled={busy || idx === sections.length - 1}
+                  aria-label={dict.sectionManager.moveDown}
+                  title={dict.sectionManager.moveDown}
+                >
+                  ▼
+                </button>
+              </div>
+              <span className="mr-auto">
+                <span className="font-semibold">{localized(section, locale)}</span>{" "}
+                <span className="text-gray-500">– {section.time_range}</span>
+              </span>
+              <button
+                type="button"
+                className="btn btn-primary"
+                onClick={() => {
+                  const { from, to } = splitTimeRange(section.time_range);
+                  setForm({
+                    key: section.key,
+                    label: section.label,
+                    labelEn: section.label_en ?? "",
+                    labelPl: section.label_pl ?? "",
+                    timeFrom: from,
+                    timeTo: to,
+                  });
+                }}
+              >
+                {dict.common.edit}
+              </button>
+              <button
+                type="button"
+                className="btn btn-del"
+                onClick={() => remove(section)}
+              >
+                {dict.common.delete}
+              </button>
+            </li>
+          ))}
+          {sections.length === 0 && (
+            <li className="px-4 py-3 text-gray-500">{dict.sectionManager.empty}</li>
+          )}
+        </ul>
+      )}
+    </div>
+  );
+}

lib/i18n/dictionaries.ts

@@ -30,6 +30,7 @@ const de = {
     canteen: "Kantine",
     menuGroup: "Speiseplan",
     weekPlan: "Wochenplan",
+    sections: "Bereiche",
     dishes: "Gerichte",
     labels: "Allergene & Zusatzstoffe",
     adminGroup: "Verwaltung",
@@ -120,6 +121,24 @@ const de = {
     saveError: "Speichern fehlgeschlagen: {message}",
     deleteError: "Löschen fehlgeschlagen: {message}",
   },
+  sectionManager: {
+    title: "Bereiche",
+    newSection: "Neuer Bereich",
+    editSection: "Bereich bearbeiten",
+    nameLabel: "Bezeichnung",
+    nameEnLabel: "Bezeichnung (Englisch)",
+    namePlLabel: "Bezeichnung (Polnisch)",
+    timeFrom: "Von",
+    timeTo: "Bis",
+    moveUp: "Nach oben",
+    moveDown: "Nach unten",
+    empty: "Noch keine Bereiche angelegt.",
+    confirmDelete:
+      "„{name}“ wirklich löschen? Zugewiesene Gerichte werden auch aus allen Wochenplänen entfernt.",
+    loadError: "Laden fehlgeschlagen: {message}",
+    saveError: "Speichern fehlgeschlagen: {message}",
+    deleteError: "Löschen fehlgeschlagen: {message}",
+  },
   userManager: {
     title: "Benutzer",
     newUser: "Neuer Benutzer",
@@ -269,6 +288,7 @@ const en: Dict = {
     canteen: "Canteen",
     menuGroup: "Menu",
     weekPlan: "Weekly plan",
+    sections: "Sections",
     dishes: "Dishes",
     labels: "Allergens & Additives",
     adminGroup: "Administration",
@@ -359,6 +379,24 @@ const en: Dict = {
     saveError: "Saving failed: {message}",
     deleteError: "Deleting failed: {message}",
   },
+  sectionManager: {
+    title: "Sections",
+    newSection: "New section",
+    editSection: "Edit section",
+    nameLabel: "Name",
+    nameEnLabel: "Name (English)",
+    namePlLabel: "Name (Polish)",
+    timeFrom: "From",
+    timeTo: "To",
+    moveUp: "Move up",
+    moveDown: "Move down",
+    empty: "No sections yet.",
+    confirmDelete:
+      "Really delete “{name}”? Assigned dishes will also be removed from all weekly plans.",
+    loadError: "Loading failed: {message}",
+    saveError: "Saving failed: {message}",
+    deleteError: "Deleting failed: {message}",
+  },
   userManager: {
     title: "Users",
     newUser: "New user",
@@ -506,6 +544,7 @@ const pl: Dict = {
     canteen: "Stołówka",
     menuGroup: "Jadłospis",
     weekPlan: "Plan tygodnia",
+    sections: "Sekcje",
     dishes: "Dania",
     labels: "Alergeny i dodatki",
     adminGroup: "Administracja",
@@ -596,6 +635,24 @@ const pl: Dict = {
     saveError: "Zapisywanie nie powiodło się: {message}",
     deleteError: "Usuwanie nie powiodło się: {message}",
   },
+  sectionManager: {
+    title: "Sekcje",
+    newSection: "Nowa sekcja",
+    editSection: "Edytuj sekcję",
+    nameLabel: "Nazwa",
+    nameEnLabel: "Nazwa (angielski)",
+    namePlLabel: "Nazwa (polski)",
+    timeFrom: "Od",
+    timeTo: "Do",
+    moveUp: "Przesuń w górę",
+    moveDown: "Przesuń w dół",
+    empty: "Nie dodano jeszcze żadnych sekcji.",
+    confirmDelete:
+      "Czy na pewno usunąć „{name}”? Przypisane dania zostaną również usunięte ze wszystkich planów tygodniowych.",
+    loadError: "Wczytywanie nie powiodło się: {message}",
+    saveError: "Zapisywanie nie powiodło się: {message}",
+    deleteError: "Usuwanie nie powiodło się: {message}",
+  },
   userManager: {
     title: "Użytkownicy",
     newUser: "Nowy użytkownik",

supabase/migrations/0006_variable_sections.sql

@@ -0,0 +1,25 @@
+-- =============================================================
+-- Bereiche (Brotzeit/Mittagessen/…) vollständig verwaltbar machen:
+-- anlegen, umbenennen, Uhrzeit ändern, löschen.
+-- =============================================================
+
+-- Neue Bereiche bekommen einen automatisch generierten Schlüssel
+-- (wie bei dishes.id) statt eines von Hand vergebenen Slugs.
+alter table public.sections
+  alter column key set default (gen_random_uuid())::text;
+
+-- Löscht man einen Bereich, werden seine Wochenplan-Einträge mit
+-- entfernt (analog zu menu_entries_dish_id_fkey bei Gerichten) statt
+-- die Löschung zu blockieren.
+alter table public.menu_entries
+  drop constraint menu_entries_section_key_fkey;
+alter table public.menu_entries
+  add constraint menu_entries_section_key_fkey
+  foreign key (section_key) references public.sections(key) on delete cascade;
+
+-- Bisher gab es nur eine Lesepolicy für sections; jetzt dürfen
+-- Kantinenmitarbeiter/Admins Bereiche auch anlegen/ändern/löschen.
+create policy "sections_staff_write" on public.sections
+  for all to authenticated
+  using (public.app_role() in ('staff', 'admin'))
+  with check (public.app_role() in ('staff', 'admin'));