242 lines
8.8 KiB
TypeScript
242 lines
8.8 KiB
TypeScript
'use client';
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/**
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* Mitgliederverwaltung fuer Kalender.
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*
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* Vorhandene Benutzer werden direkt per E-Mail ueber die Datenbank
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* gesucht und dem Kalender zugeordnet:
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* - Suchfeld mit Live-Vorschlaegen (GET /api/users/search?q=...)
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* - Hinzufuegen per Klick (POST /api/calendars/[id]/members)
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* - Mitgliederliste mit Entfernen-Button (DELETE ...?memberId=...)
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*
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* Nur fuer Admins gerendert; der Server prueft die Berechtigung final.
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*/
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import { appFetch } from '@/lib/client-fetch';
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import { useCallback, useEffect, useRef, useState } from 'react';
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import { ErrorMessage } from '@/components/ui/ui';
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/** Mitglied, wie der Members-Endpoint es liefert. */
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interface MemberRow {
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id: string;
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createdAt: string;
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user: { id: string; email: string; username: string | null };
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}
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/** Treffer der Benutzer-Suche. */
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interface UserSuggestion {
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id: string;
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email: string;
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username: string | null;
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}
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export function MemberSection({ calendarId }: { calendarId: string }) {
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const [members, setMembers] = useState<MemberRow[]>([]);
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const [isLoading, setIsLoading] = useState(true);
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const [error, setError] = useState<string | null>(null);
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const [query, setQuery] = useState('');
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const [suggestions, setSuggestions] = useState<UserSuggestion[]>([]);
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const [isSearching, setIsSearching] = useState(false);
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const [addingEmail, setAddingEmail] = useState<string | null>(null);
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const [removingId, setRemovingId] = useState<string | null>(null);
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const searchTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
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/** Laedt die aktuelle Mitgliederliste. */
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const loadMembers = useCallback(async () => {
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setIsLoading(true);
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setError(null);
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try {
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const response = await appFetch(`/api/calendars/${calendarId}/members`);
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if (!response.ok) {
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const data = (await response.json().catch(() => ({}))) as { error?: string };
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setError(data.error ?? 'Mitglieder konnten nicht geladen werden.');
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return;
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}
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const data = (await response.json()) as { members: MemberRow[] };
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setMembers(data.members);
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} catch {
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setError('Netzwerkfehler. Bitte erneut versuchen.');
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} finally {
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setIsLoading(false);
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}
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}, [calendarId]);
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useEffect(() => {
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void loadMembers();
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}, [loadMembers]);
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/** Entfernt die Suchvorschlaege, wenn das Suchfeld den Fokus verliert.
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* Die kleine Verzoegerung stellt sicher, dass Klicks auf Vorschlaege
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* (die nach dem Blur-Event kommen) noch verarbeitet werden. */
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function hideSuggestionsDelayed() {
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window.setTimeout(() => setSuggestions([]), 150);
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}
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/** Fuegt einen Benutzer per E-Mail zum Kalender hinzu. */
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async function addMember(email: string) {
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setAddingEmail(email);
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setError(null);
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try {
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const response = await appFetch(`/api/calendars/${calendarId}/members`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ email }),
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});
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if (!response.ok) {
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const data = (await response.json().catch(() => ({}))) as { error?: string };
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setError(data.error ?? 'Hinzufuegen fehlgeschlagen.');
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return;
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}
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setQuery('');
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setSuggestions([]);
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await loadMembers();
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} catch {
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setError('Netzwerkfehler. Bitte erneut versuchen.');
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} finally {
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setAddingEmail(null);
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}
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}
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/** Entfernt ein Mitglied aus dem Kalender. */
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async function removeMember(memberId: string) {
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setRemovingId(memberId);
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setError(null);
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try {
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const response = await appFetch(
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`/api/calendars/${calendarId}/members?memberId=${encodeURIComponent(memberId)}`,
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{ method: 'DELETE' },
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);
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if (!response.ok) {
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const data = (await response.json().catch(() => ({}))) as { error?: string };
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setError(data.error ?? 'Entfernen fehlgeschlagen.');
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return;
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}
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await loadMembers();
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} catch {
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setError('Netzwerkfehler. Bitte erneut versuchen.');
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} finally {
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setRemovingId(null);
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}
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}
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/** Live-Suche mit 300 ms Debounce (schont die Datenbank). */
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function handleQueryChange(nextQuery: string) {
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setQuery(nextQuery);
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if (searchTimer.current) {
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clearTimeout(searchTimer.current);
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}
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if (nextQuery.trim().length < 2) {
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setSuggestions([]);
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return;
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}
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searchTimer.current = setTimeout(async () => {
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setIsSearching(true);
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try {
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const response = await appFetch(
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`/api/users/search?q=${encodeURIComponent(nextQuery.trim())}`,
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);
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if (response.ok) {
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const data = (await response.json()) as { users: UserSuggestion[] };
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setSuggestions(data.users);
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}
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} catch {
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// Suche ist optional; Fehler still ignorieren, Vorschlaege bleiben leer.
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} finally {
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setIsSearching(false);
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}
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}, 300);
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}
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return (
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<section aria-label="Mitglieder">
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<h3 className="mb-3 text-base font-semibold">
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Mitglieder ({members.length})
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</h3>
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<ErrorMessage message={error} />
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{/* Suchfeld mit DB-Anbindung (Live-Vorschlaege). */}
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<div className="relative mb-3">
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<input
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type="search"
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value={query}
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onChange={(event) => handleQueryChange(event.target.value)}
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onBlur={hideSuggestionsDelayed}
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placeholder="Benutzer per E-Mail suchen und hinzufuegen …"
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aria-label="Benutzer suchen"
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className="w-full rounded-md border border-slate-300 bg-white px-3 py-2 text-sm text-slate-900 placeholder:text-slate-400 focus:border-slate-500 focus:outline-none focus:ring-1 focus:ring-slate-500 dark:border-slate-600 dark:bg-slate-800 dark:text-slate-100 dark:placeholder:text-slate-500"
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/>
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{(suggestions.length > 0 || isSearching) && query.trim().length >= 2 && (
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<ul className="absolute z-10 mt-1 w-full overflow-hidden rounded-md border border-slate-200 bg-white shadow-lg dark:border-slate-700 dark:bg-slate-800">
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{isSearching && (
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<li className="px-3 py-2 text-sm text-slate-500">Suche …</li>
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)}
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{suggestions.map((suggestion) => (
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<li key={suggestion.id}>
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<button
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type="button"
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onMouseDown={(event) => event.preventDefault()}
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onClick={() => addMember(suggestion.email)}
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disabled={addingEmail !== null}
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className="flex w-full items-center justify-between px-3 py-2 text-left text-sm hover:bg-slate-100 disabled:opacity-50 dark:hover:bg-slate-700"
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>
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<span>
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{suggestion.username ?? suggestion.email}
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{suggestion.username && (
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<span className="ml-2 text-xs text-slate-500 dark:text-slate-400">
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{suggestion.email}
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</span>
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)}
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</span>
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<span className="text-xs font-medium text-slate-500 dark:text-slate-400">
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{addingEmail === suggestion.email ? 'Fuege hinzu …' : '+ Hinzufuegen'}
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</span>
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</button>
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</li>
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))}
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{!isSearching && suggestions.length === 0 && (
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<li className="px-3 py-2 text-sm text-slate-500">
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Kein Benutzer gefunden.
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</li>
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)}
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</ul>
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)}
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</div>
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{isLoading ? (
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<p className="text-sm text-slate-500">Mitglieder werden geladen …</p>
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) : members.length === 0 ? (
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<p className="text-sm text-slate-500 dark:text-slate-400">
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Noch keine Mitglieder. Suche oben nach Benutzern, um sie hinzuzufuegen.
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</p>
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) : (
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<ul className="space-y-1 text-sm">
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{members.map((member) => (
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<li
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key={member.id}
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className="flex items-center justify-between rounded bg-slate-50 px-3 py-1.5 dark:bg-slate-800"
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>
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<span className="text-slate-700 dark:text-slate-200">
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{member.user.username ?? member.user.email}
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{member.user.username && (
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<span className="ml-2 text-xs text-slate-500 dark:text-slate-400">
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{member.user.email}
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</span>
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)}
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</span>
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<button
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type="button"
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onClick={() => removeMember(member.id)}
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disabled={removingId === member.id}
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aria-label={`Mitglied ${member.user.username ?? member.user.email} entfernen`}
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className="text-xs font-medium text-slate-500 transition-colors hover:text-red-600 disabled:opacity-50 dark:text-slate-400 dark:hover:text-red-400"
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>
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{removingId === member.id ? 'Entferne …' : 'Entfernen'}
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</button>
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</li>
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))}
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</ul>
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)}
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</section>
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);
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}
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