Files
Calendarr-IOS/Calendarr iOS/Services/NotificationScheduler.swift
Scarriffle 52040fff53 feat: show relative time in notifications + move default duration to profile settings
Notifications now show "in 30 Min. · 10:00" instead of just the time,
giving users immediate context about how soon the event is.

Default event duration picker moved from the View section to right below
the privacy setting, grouped under the calendar/profile settings area.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-15 19:38:20 +02:00

84 lines
3.9 KiB
Swift

import Foundation
import UserNotifications
extension Notification.Name {
/// Posted when the default-reminder setting changes, so the calendar host
/// can recompute the scheduled local notifications from its cached events.
static let rescheduleReminders = Notification.Name("rescheduleReminders")
}
/// Schedules local OS notifications for upcoming events. Per-event reminders
/// (local events) take precedence; otherwise the user's default reminder applies
/// to every event (incl. external). Re-run whenever events or the default change.
enum NotificationScheduler {
static func requestAuthorizationIfNeeded() {
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { _, _ in }
}
/// Recompute and (re)schedule notifications from the given events. The iOS
/// pending-notification cap is 64, so only the soonest are scheduled.
/// `disabledCalendarKeys` ("source:id") are calendars with reminders turned
/// off their events never generate notifications.
static func reschedule(events: [CalEvent], disabledCalendarKeys: Set<String> = []) {
let center = UNUserNotificationCenter.current()
center.getNotificationSettings { settings in
guard settings.authorizationStatus == .authorized
|| settings.authorizationStatus == .provisional else { return }
let defaultMin = (UserDefaults.standard.object(forKey: "defaultReminderMinutes") as? Int) ?? -1
let now = Date()
var pending: [(fire: Date, event: CalEvent)] = []
for ev in events {
// Skip calendars the user muted for reminders.
if !disabledCalendarKeys.isEmpty {
let key = CalendarStore.calendarKey(source: ev.source, calendarId: ev.calendarId)
if disabledCalendarKeys.contains(key) { continue }
}
let offsets = ev.reminders.isEmpty
? (defaultMin >= 0 ? [defaultMin] : [])
: ev.reminders
for m in offsets {
let fire = ev.startDate.addingTimeInterval(-Double(m) * 60)
if fire > now { pending.append((fire, ev)) }
}
}
pending.sort { $0.fire < $1.fire }
let limited = pending.prefix(60) // stay safely under the 64 system cap
center.removeAllPendingNotificationRequests()
for item in limited {
let content = UNMutableNotificationContent()
content.title = item.event.title
let minutes = Int(item.event.startDate.timeIntervalSince(item.fire) / 60)
let rel = relativeText(minutes)
let detail = bodyText(item.event)
content.body = detail.isEmpty ? rel : "\(rel) · \(detail)"
content.sound = .default
let comps = Calendar.current.dateComponents(
[.year, .month, .day, .hour, .minute, .second], from: item.fire)
let trigger = UNCalendarNotificationTrigger(dateMatching: comps, repeats: false)
center.add(UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger))
}
}
}
private static func relativeText(_ minutes: Int) -> String {
if minutes < 60 { return "in \(minutes) Min." }
if minutes == 60 { return "in 1 Std." }
if minutes < 1440 { return "in \(minutes / 60) Std." }
if minutes == 1440 { return "morgen" }
return "in \(minutes / 1440) Tagen"
}
private static func bodyText(_ ev: CalEvent) -> String {
var parts: [String] = []
if !ev.isAllDay {
let f = DateFormatter(); f.timeStyle = .short; f.dateStyle = .none
parts.append(f.string(from: ev.startDate))
}
if !ev.location.isEmpty { parts.append(ev.location) }
return parts.joined(separator: " · ")
}
}