Root cause: mergeIntoCache() unconditionally evicted every event in the
fetched date range, even for calendars whose sync failed. Those calendars'
events were removed and never restored, so the calendar appeared to vanish.
Fix:
- SyncError now decodes calendarId from the server's "calendar_id" field
(added server-side in e0ea16f but not yet read by iOS).
- mergeIntoCache() gains a keepKeysInRange parameter: events from failed
calendars are retained (not evicted) even within the fetch window.
- loadEvents() and prefetchBackground() compute the failed keys from the
syncErrors list and pass them to mergeIntoCache.
Result: when CalDAV / Google / HA sync fails for a specific calendar, the
user sees stale-but-correct events alongside the existing error banner,
instead of a completely empty calendar with no explanation.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The server now reports per-calendar sync failures (e.g. expired
credentials) alongside an otherwise-successful events response, via an
"errors" array. Previously such failures were silently swallowed, so a
calendar could appear enabled while showing zero events with no
explanation.
- Decode the new "errors" field into SyncError (source/name/message),
following the existing JSONSerialization + from(json:) convention.
- CalendarStore.syncErrors captures these on successful personal
fetches (loadEvents, prefetchBackground); left untouched on a hard
fetch failure so it isn't conflated with lastError. Group overlay
fetches never populate it (the endpoint doesn't apply there).
- CalendarHostView shows a second red warning banner alongside the
existing lastError banner, reusing the same visual style.
Per-event reminders (multiple, local calendars only) in the editor, prefilled
from a new "default reminder" setting that applies to all events otherwise.
CalEvent gains `reminders`; AppSettings/SettingsSync sync default_reminder_minutes
(always group). New NotificationScheduler requests permission and schedules the
soonest ≤60 upcoming reminders via UNUserNotificationCenter, rescheduling on
load/sync/edit and when the default changes (skipped in group overlay).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
CalEvent parses display_title; the combined view uses it (group icon + owner
prefix from the server) instead of client-side decoration, with a fallback for
older servers. Raw title kept for editing.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
