Widget anpassung vorbereitung

CalendarrWidgets/CalendarrTimelineProvider.swift

@@ -0,0 +1,53 @@
+import WidgetKit
+
+struct CalendarrEntry: TimelineEntry {
+    let date: Date
+    let snapshot: WidgetSnapshot?
+}
+
+struct CalendarrTimelineProvider: TimelineProvider {
+    func placeholder(in context: Context) -> CalendarrEntry {
+        CalendarrEntry(date: .now, snapshot: WidgetStore.read())
+    }
+
+    func getSnapshot(in context: Context, completion: @escaping (CalendarrEntry) -> Void) {
+        completion(CalendarrEntry(date: .now, snapshot: WidgetStore.read()))
+    }
+
+    func getTimeline(in context: Context, completion: @escaping (Timeline<CalendarrEntry>) -> Void) {
+        let snapshot = WidgetStore.read()
+        let now = Date()
+
+        // Provide one entry per hour for the next 24h so the widget keeps
+        // re-rendering as time progresses (past events drop off, "now" advances).
+        var entries: [CalendarrEntry] = []
+        for h in 0..<24 {
+            let date = Calendar.current.date(byAdding: .hour, value: h, to: now) ?? now
+            entries.append(CalendarrEntry(date: date, snapshot: snapshot))
+        }
+        // Ask iOS to refresh in 30 min to pick up any new data the app wrote.
+        let refreshAt = Calendar.current.date(byAdding: .minute, value: 30, to: now) ?? now
+        completion(Timeline(entries: entries, policy: .after(refreshAt)))
+    }
+}
+
+// MARK: – Shared helpers used by all widget views
+
+enum WidgetHelpers {
+    static func events(for day: Date, in snapshot: WidgetSnapshot) -> [WidgetEvent] {
+        let cal = Calendar.current
+        let dayStart = cal.startOfDay(for: day)
+        let dayEnd = cal.date(byAdding: .day, value: 1, to: dayStart) ?? dayStart
+        return snapshot.events
+            .filter { $0.start < dayEnd && $0.end > dayStart }
+            .sorted { $0.start < $1.start }
+    }
+
+    static func upcoming(from now: Date, daysAhead: Int, in snapshot: WidgetSnapshot) -> [WidgetEvent] {
+        let cal = Calendar.current
+        let end = cal.date(byAdding: .day, value: daysAhead, to: cal.startOfDay(for: now)) ?? now
+        return snapshot.events
+            .filter { $0.end > now && $0.start < end }
+            .sorted { $0.start < $1.start }
+    }
+}