feat: set default reminders for each calendar in calendar management #1209

components/settings/__tests__/calendar-default-alerts-settings.test.tsx

@@ -0,0 +1,98 @@
+import { render, screen, fireEvent, waitFor } from '@testing-library/react';
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { CalendarManagementSettings } from '../calendar-management-settings';
+import { useCalendarStore } from '@/stores/calendar-store';
+import { useAuthStore } from '@/stores/auth-store';
+import type { Calendar, CalendarEventAlert } from '@/lib/jmap/types';
+
+// #1209: each calendar the user owns gets editable default reminders for
+// timed and all-day events.
+
+const absolute: CalendarEventAlert = {
+  '@type': 'Alert',
+  trigger: { '@type': 'AbsoluteTrigger', when: '2026-11-19T08:00:00Z' },
+  action: 'display',
+  acknowledged: null,
+  relatedTo: null,
+};
+
+function makeCalendar(overrides: Partial<Calendar>): Calendar {
+  return {
+    id: 'cal-1',
+    name: 'Work',
+    color: '#3b82f6',
+    isDefault: true,
+    isShared: false,
+    shareWith: null,
+    myRights: { mayWriteAll: true, mayWriteOwn: true, mayShare: true, mayDelete: true },
+    defaultAlertsWithTime: null,
+    defaultAlertsWithoutTime: null,
+    ...overrides,
+  } as unknown as Calendar;
+}
+
+const client = { getAccountId: () => 'acct' };
+let updateCalendar: ReturnType<typeof vi.fn>;
+
+beforeEach(() => {
+  updateCalendar = vi.fn().mockResolvedValue(undefined);
+  useAuthStore.setState({ client: client as never, serverUrl: null as never, username: null as never });
+  useCalendarStore.setState({
+    calendars: [
+      makeCalendar({ defaultAlertsWithoutTime: { abs: absolute } }),
+      makeCalendar({ id: 'cal-2', name: 'Team', isDefault: false, isShared: true }),
+    ],
+    icalSubscriptions: [],
+    updateCalendar,
+  } as never);
+});
+
+describe('Calendar default reminders settings', () => {
+  it('offers default reminders only for calendars the user owns', () => {
+    render(<CalendarManagementSettings />);
+    expect(screen.getAllByLabelText('default_alerts')).toHaveLength(1);
+  });
+
+  it('saves both lists with their actions and keeps alerts it cannot show', async () => {
+    render(<CalendarManagementSettings />);
+    fireEvent.click(screen.getByLabelText('default_alerts'));
+
+    // Timed list first, then all-day.
+    const [addTimed, addAllDay] = screen.getAllByText('alerts.add');
+    fireEvent.click(addTimed);
+    fireEvent.change(screen.getByLabelText('alerts.action'), { target: { value: 'email' } });
+    fireEvent.click(addAllDay);
+    fireEvent.change(screen.getAllByLabelText('alerts.unit')[1], { target: { value: 'days' } });
+    fireEvent.change(screen.getAllByLabelText('alerts.amount')[1], { target: { value: '1' } });
+    fireEvent.click(screen.getByText('save'));
+
+    await waitFor(() => expect(updateCalendar).toHaveBeenCalledTimes(1));
+    const [, calendarId, updates] = updateCalendar.mock.calls[0];
+    expect(calendarId).toBe('cal-1');
+    expect(Object.values(updates.defaultAlertsWithTime)).toEqual([
+      expect.objectContaining({ action: 'email', trigger: { '@type': 'OffsetTrigger', offset: '-PT10M', relativeTo: 'start' } }),
+    ]);
+    expect(updates.defaultAlertsWithoutTime.abs).toBe(absolute);
+    expect(Object.values(updates.defaultAlertsWithoutTime)).toContainEqual(
+      expect.objectContaining({ action: 'display', trigger: expect.objectContaining({ offset: '-P1D' }) }),
+    );
+  });
+
+  it('clears a list by sending null once its last reminder is removed', async () => {
+    useCalendarStore.setState({
+      calendars: [makeCalendar({
+        defaultAlertsWithTime: {
+          a: { ...absolute, trigger: { '@type': 'OffsetTrigger', offset: '-PT15M', relativeTo: 'start' } },
+        },
+      })],
+    } as never);
+    render(<CalendarManagementSettings />);
+    fireEvent.click(screen.getByLabelText('default_alerts'));
+
+    fireEvent.click(screen.getByLabelText('alerts.remove'));
+    fireEvent.click(screen.getByText('save'));
+
+    await waitFor(() => expect(updateCalendar).toHaveBeenCalledTimes(1));
+    expect(updateCalendar.mock.calls[0][2]).toEqual({ defaultAlertsWithTime: null, defaultAlertsWithoutTime: null });
+  });
+});

components/settings/calendar-management-settings.tsx

@@ -4,12 +4,14 @@ import { useState, useRef, useEffect, useMemo } from 'react';
 import { useTranslations } from 'next-intl';
 import { useCalendarStore } from '@/stores/calendar-store';
 import { CALENDAR_KIND_COMPONENTS, CalendarKindPicker, type CalendarKind } from '@/components/calendar/calendar-kind-picker';
-import type { CalendarComponentType } from '@/lib/jmap/types';
+import type { Calendar, CalendarComponentType } from '@/lib/jmap/types';
 import { useAuthStore } from '@/stores/auth-store';
 import { getActiveAccountSlotHeaders } from '@/lib/auth/active-account-slot';
 import { toast } from '@/stores/toast-store';
 import { SettingsSection } from './settings-section';
-import { Plus, Pencil, Trash2, Calendar as CalendarIcon, Copy, Link, Upload, Globe, RefreshCw, Eraser, Users } from '@/components/icons';
+import { Plus, Pencil, Trash2, Calendar as CalendarIcon, Copy, Link, Upload, Globe, RefreshCw, Eraser, Users, Bell } from '@/components/icons';
+import { AlertListEditor } from '@/components/calendar/alert-list-editor';
+import { alertsToRows, rowsToAlerts, type AlertRow } from '@/lib/calendar-alerts';
 import { ShareCollectionDialog } from './share-collection-dialog';
 import type { CalendarRights } from '@/lib/jmap/types';
 import { cn, formatDateTime, redactUrlCredentials } from '@/lib/utils';
@@ -150,6 +152,86 @@ export function CalendarEditForm({
 
 export { CalendarColorPicker, CALENDAR_COLORS };
 
+type DefaultAlertsUpdate = Pick<Calendar, 'defaultAlertsWithTime' | 'defaultAlertsWithoutTime'>;
+
+export function CalendarDefaultAlertsForm({
+  calendar,
+  onSave,
+  onCancel,
+  isLoading,
+}: {
+  calendar: Calendar;
+  onSave: (updates: DefaultAlertsUpdate) => void;
+  onCancel: () => void;
+  isLoading: boolean;
+}) {
+  const t = useTranslations('calendar.management');
+  // Alerts the rows can't show are written back unchanged.
+  const [timed] = useState(() => alertsToRows(calendar.defaultAlertsWithTime));
+  const [allDay] = useState(() => alertsToRows(calendar.defaultAlertsWithoutTime));
+  const [timedRows, setTimedRows] = useState<AlertRow[]>(timed.rows);
+  const [allDayRows, setAllDayRows] = useState<AlertRow[]>(allDay.rows);
+
+  const toMap = (rows: AlertRow[], preserved: typeof timed.preserved) => {
+    const map = rowsToAlerts(rows, preserved);
+    return Object.keys(map).length > 0 ? map : null;
+  };
+  const submit = () => onSave({
+    defaultAlertsWithTime: toMap(timedRows, timed.preserved),
+    defaultAlertsWithoutTime: toMap(allDayRows, allDay.preserved),
+  });
+
+  return (
+    <div className="space-y-3 p-3 rounded-md border border-primary/30 bg-accent/30">
+      <div>
+        <h4 className="text-sm font-medium">{t('default_alerts_title', { name: calendar.name })}</h4>
+        <p className="text-xs text-muted-foreground mt-0.5">{t('default_alerts_hint')}</p>
+      </div>
+
+      <div>
+        <label className="text-xs font-medium text-muted-foreground mb-1 block">
+          {t('default_alerts_timed')}
+        </label>
+        <AlertListEditor
+          rows={timedRows}
+          onChange={setTimedRows}
+          keptCount={Object.keys(timed.preserved).length}
+          disabled={isLoading}
+        />
+      </div>
+
+      <div>
+        <label className="text-xs font-medium text-muted-foreground mb-1 block">
+          {t('default_alerts_all_day')}
+        </label>
+        <AlertListEditor
+          rows={allDayRows}
+          onChange={setAllDayRows}
+          keptCount={Object.keys(allDay.preserved).length}
+          disabled={isLoading}
+        />
+      </div>
+
+      <div className="flex items-center gap-2 pt-1">
+        <button
+          onClick={submit}
+          disabled={isLoading}
+          className="px-3 py-1.5 text-xs font-medium bg-primary text-primary-foreground rounded-md hover:bg-primary/90 disabled:opacity-50"
+        >
+          {t('save')}
+        </button>
+        <button
+          onClick={onCancel}
+          disabled={isLoading}
+          className="px-3 py-1.5 text-xs bg-muted text-foreground rounded-md hover:bg-accent"
+        >
+          {t('cancel')}
+        </button>
+      </div>
+    </div>
+  );
+}
+
 export function CalendarManagementSettings() {
   const t = useTranslations('calendar.management');
   const { client, serverUrl, username } = useAuthStore();
@@ -168,6 +250,7 @@ export function CalendarManagementSettings() {
 
   const [isCreating, setIsCreating] = useState(false);
   const [editingId, setEditingId] = useState<string | null>(null);
+  const [alertsEditingId, setAlertsEditingId] = useState<string | null>(null);
   const [deletingId, setDeletingId] = useState<string | null>(null);
   const [clearingId, setClearingId] = useState<string | null>(null);
   const [isLoading, setIsLoading] = useState(false);
@@ -329,6 +412,20 @@ export function CalendarManagementSettings() {
     }
   };
 
+  const handleDefaultAlertsSave = async (calendarId: string, updates: DefaultAlertsUpdate) => {
+    if (!client) return;
+    setIsLoading(true);
+    try {
+      await updateCalendar(client, calendarId, updates);
+      setAlertsEditingId(null);
+      toast.success(t('default_alerts_updated'));
+    } catch {
+      toast.error(t('error_update'));
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
   const handleColorChange = async (calendarId: string, color: string) => {
     if (!client) return;
     // Shared calendars: recolor locally only - the viewer usually can't write
@@ -424,6 +521,18 @@ export function CalendarManagementSettings() {
             );
           }
 
+          if (alertsEditingId === cal.id) {
+            return (
+              <CalendarDefaultAlertsForm
+                key={cal.id}
+                calendar={cal}
+                onSave={(updates) => handleDefaultAlertsSave(cal.id, updates)}
+                onCancel={() => setAlertsEditingId(null)}
+                isLoading={isLoading}
+              />
+            );
+          }
+
           if (deletingId === cal.id) {
             return (
               <div key={cal.id} className="flex items-center gap-3 py-2.5 px-3 bg-destructive/5 rounded-md border border-destructive/20">
@@ -560,6 +669,18 @@ export function CalendarManagementSettings() {
                 >
                   <Pencil className="w-3.5 h-3.5" />
                 </button>
+                {/* The owner's defaults; a sharee can't write the calendar. */}
+                {!cal.isShared && (
+                  <button
+                    type="button"
+                    onClick={() => setAlertsEditingId(cal.id)}
+                    className="p-1.5 rounded-md hover:bg-muted text-muted-foreground hover:text-foreground transition-colors"
+                    title={t('default_alerts')}
+                    aria-label={t('default_alerts')}
+                  >
+                    <Bell className="w-3.5 h-3.5" />
+                  </button>
+                )}
                 {cal.myRights?.mayShare && !cal.isShared && !isSubscriptionCalendar(cal.id) && (
                   <button
                     type="button"

locales/en/common.json

@@ -3453,7 +3453,13 @@
       "kind_events": "Events",
       "kind_tasks": "Tasks",
       "kind_both": "Events and tasks",
-      "kind_hint": "Decides which apps see this calendar when it is synced over CalDAV. It cannot be changed later."
+      "kind_hint": "Decides which apps see this calendar when it is synced over CalDAV. It cannot be changed later.",
+      "default_alerts": "Default reminders",
+      "default_alerts_title": "Default reminders for \"{name}\"",
+      "default_alerts_hint": "New events in this calendar get these reminders unless you change them in the event. Changing them here doesn't change existing events. Email reminders are sent by the mail server.",
+      "default_alerts_timed": "Events with a time",
+      "default_alerts_all_day": "All-day events",
+      "default_alerts_updated": "Default reminders updated"
     },
     "subscription": {
       "title": "iCal Subscription",