Introduce a second, heavier visibility level above the per-view hide
filter. A disabled calendar is removed from the app's surfaces entirely —
its events drop out of all views and search, and it disappears from the
drawer filter list, the event-form calendar picker and the import target
picker. It stays listed only in Settings → Calendars, where a per-row
switch toggles it, so it can always be brought back.
- CalendarPrefs: disabledCalendarIds set + setter, mirroring the hidden
set (DataStore comma-separated string); never touches the system
VISIBLE/SYNC_EVENTS flags, so it's app-local and reversible.
- CalendarRepositoryImpl: instances()/searchEvents() exclude
calendarId ∈ (hidden ∪ disabled). distinctUntilChanged() on instances
collapses the transient duplicate emission both DataStore-derived sets
produce when either is toggled.
- FilterViewModel: drop disabled calendars from the drawer filter list.
- EventEditViewModel: exclude disabled from writableCalendars; a
last-used preselect on a now-disabled calendar falls back to the first
remaining writable one.
- ImportViewModel: exclude disabled from the import target list.
- CalendarsScreen/ViewModel: per-row enable/disable Switch on both the
local and synced groups; disabled rows render dimmed (new GroupedRow
`dimmed` flag) while keeping the toggle live.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
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