T08b: Frontend Calendar UI (month view, kanban, ICS, resources, sharing)
- 8 calendar components (MonthView, KanbanBoard, AppointmentModal, TaskDetailPanel, IcsControls, ResourceBooking, SharingSettings + API client) - 2 pages (/calendar, /calendar/kanban) + zustand store - 17 vitest tests (MonthView 5, KanbanBoard 6, AppointmentModal 6) all passing - i18n: calendar namespace in en/de (104 lines each, +exportSuccess key) - TS strict mode pass, npm run build pass
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/**
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* Calendar page — month view with toolbar, ICS controls, sharing.
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*
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* Owns the data fetching (entries + calendars + resources) for the visible
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* month and dispatches user actions to the appropriate API client call.
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*/
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import React, { useCallback, useEffect, useMemo, useState } from 'react';
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import { useTranslation } from 'react-i18next';
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import { Button } from '@/components/ui/Button';
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import { Select } from '@/components/ui/Select';
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import { EmptyState } from '@/components/ui/EmptyState';
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import { MonthView } from '@/components/calendar/MonthView';
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import { AppointmentModal } from '@/components/calendar/AppointmentModal';
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import { IcsControls } from '@/components/calendar/IcsControls';
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import { SharingSettings } from '@/components/calendar/SharingSettings';
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import { TaskDetailPanel } from '@/components/calendar/TaskDetailPanel';
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import { useCalendarStore } from '@/stores/calendarStore';
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import {
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fetchCalendars,
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listEntries,
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updateEntry,
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type Calendar,
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type CalendarEntry,
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} from '@/api/calendar';
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export function CalendarPage() {
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const { t } = useTranslation();
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const {
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visibleMonth,
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goToNextMonth,
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goToPrevMonth,
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goToToday,
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activeCalendarId,
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setActiveCalendarId,
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calendars,
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setCalendars,
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} = useCalendarStore();
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const [entries, setEntries] = useState<CalendarEntry[]>([]);
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const [loading, setLoading] = useState(false);
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const [error, setError] = useState<string | null>(null);
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const [modalOpen, setModalOpen] = useState(false);
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const [modalEntry, setModalEntry] = useState<CalendarEntry | null>(null);
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const [prefillDate, setPrefillDate] = useState<Date | null>(null);
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const [selectedTask, setSelectedTask] = useState<CalendarEntry | null>(null);
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// Load calendars once
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useEffect(() => {
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let cancelled = false;
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fetchCalendars()
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.then((list) => {
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if (cancelled) return;
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setCalendars(list);
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if (!activeCalendarId && list.length > 0) {
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setActiveCalendarId(list[0].id);
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}
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})
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.catch((e: Error) => {
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if (!cancelled) setError(e.message);
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});
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return () => {
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cancelled = true;
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};
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, []);
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// Range covering the visible grid (always 6 weeks = 42 days)
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const range = useMemo(() => {
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const first = new Date(visibleMonth.getFullYear(), visibleMonth.getMonth(), 1);
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const dayOfWeek = (first.getDay() + 6) % 7;
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const start = new Date(first);
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start.setDate(first.getDate() - dayOfWeek);
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start.setHours(0, 0, 0, 0);
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const end = new Date(start);
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end.setDate(start.getDate() + 42);
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return { start, end };
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}, [visibleMonth]);
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const loadEntries = useCallback(async () => {
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setLoading(true);
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setError(null);
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try {
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const list = await listEntries({
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start: range.start.toISOString(),
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end: range.end.toISOString(),
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});
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setEntries(list);
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} catch (e) {
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setError((e as Error).message ?? t('calendar.errorLoad'));
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} finally {
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setLoading(false);
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}
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}, [range.start, range.end, t]);
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useEffect(() => {
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void loadEntries();
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}, [loadEntries]);
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const handleCreateAt = (date: Date) => {
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setModalEntry(null);
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setPrefillDate(date);
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setModalOpen(true);
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};
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const handleEditEntry = (entry: CalendarEntry) => {
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if (entry.entry_type === 'task') {
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setSelectedTask(entry);
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return;
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}
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setModalEntry(entry);
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setPrefillDate(null);
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setModalOpen(true);
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};
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const handleMoveEntry = async (entry: CalendarEntry, newStart: Date) => {
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try {
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const oldEnd = entry.end_at ? new Date(entry.end_at) : null;
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const oldStart = entry.start_at ? new Date(entry.start_at) : null;
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const durationMs = oldStart && oldEnd ? oldEnd.getTime() - oldStart.getTime() : 60 * 60 * 1000;
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const newEnd = new Date(newStart.getTime() + durationMs);
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const updated = await updateEntry(entry.id, {
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start_at: newStart.toISOString(),
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end_at: newEnd.toISOString(),
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});
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setEntries((cur) => cur.map((e) => (e.id === updated.id ? updated : e)));
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} catch (e) {
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setError((e as Error).message ?? t('calendar.errorSave'));
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await loadEntries();
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}
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};
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const handleSaved = (saved: CalendarEntry) => {
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setEntries((cur) => {
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const exists = cur.some((e) => e.id === saved.id);
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return exists ? cur.map((e) => (e.id === saved.id ? saved : e)) : [...cur, saved];
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});
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};
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const handleDeleted = (entryId: string) => {
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setEntries((cur) => cur.filter((e) => e.id !== entryId));
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};
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const handleTaskChanged = (updated: CalendarEntry) => {
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setSelectedTask(updated);
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setEntries((cur) => cur.map((e) => (e.id === updated.id ? updated : e)));
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};
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const activeCalendar = calendars.find((c) => c.id === activeCalendarId) ?? null;
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return (
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<div className="p-6 max-w-7xl mx-auto" data-testid="calendar-page">
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<div className="flex flex-wrap items-center justify-between gap-3 mb-4">
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<h1 className="text-2xl font-bold text-secondary-900">{t('calendar.title')}</h1>
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<div className="flex items-center gap-2">
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<Button
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variant="ghost"
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size="sm"
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onClick={goToPrevMonth}
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aria-label={t('calendar.previousMonth')}
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data-testid="calendar-prev"
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>
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‹
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</Button>
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<Button
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variant="secondary"
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size="sm"
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onClick={goToToday}
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data-testid="calendar-today"
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>
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{t('calendar.today')}
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</Button>
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<Button
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variant="ghost"
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size="sm"
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onClick={goToNextMonth}
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aria-label={t('calendar.nextMonth')}
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data-testid="calendar-next"
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>
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›
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</Button>
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</div>
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</div>
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<div className="grid grid-cols-1 lg:grid-cols-[1fr_320px] gap-4">
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<div>
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{error && (
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<div
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className="mb-3 text-sm text-danger-700 bg-danger-50 border border-danger-200 rounded-md p-2"
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data-testid="calendar-error"
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>
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{error}
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</div>
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)}
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{calendars.length === 0 && !loading ? (
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<EmptyState
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title={t('calendar.noCalendars')}
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description={t('calendar.noEntries')}
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data-testid="calendar-empty"
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/>
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) : (
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<MonthView
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visibleMonth={visibleMonth}
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entries={entries}
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loading={loading}
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onCreateAt={handleCreateAt}
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onEditEntry={handleEditEntry}
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onMoveEntry={handleMoveEntry}
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/>
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)}
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</div>
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<aside className="space-y-4">
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<div className="bg-white border border-secondary-200 rounded-lg p-4 space-y-3">
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<div>
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<label className="block text-xs uppercase text-secondary-500 mb-1">
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{t('calendar.appointmentCalendar')}
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</label>
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<Select
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value={activeCalendarId ?? ''}
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onChange={(e) => setActiveCalendarId(e.target.value || null)}
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options={[
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...calendars.map((c: Calendar) => ({ value: c.id, label: c.name })),
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]}
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data-testid="calendar-select"
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/>
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</div>
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<IcsControls
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calendar={activeCalendar}
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onImported={() => void loadEntries()}
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/>
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</div>
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{activeCalendar && (
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<div className="bg-white border border-secondary-200 rounded-lg p-4">
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<SharingSettings calendar={activeCalendar} />
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</div>
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)}
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</aside>
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</div>
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<AppointmentModal
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open={modalOpen}
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onClose={() => setModalOpen(false)}
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entry={modalEntry}
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prefillDate={prefillDate}
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calendars={calendars}
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defaultCalendarId={activeCalendarId}
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onSaved={handleSaved}
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onDeleted={handleDeleted}
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/>
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{selectedTask && (
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<TaskDetailPanel
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entry={selectedTask}
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onClose={() => setSelectedTask(null)}
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onChanged={handleTaskChanged}
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/>
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)}
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</div>
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);
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}
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export default CalendarPage;
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