widget refresh enhancements

android/app/build.gradle

@@ -65,5 +65,9 @@ flutter {
 
 dependencies {
     implementation 'com.android.support:multidex:2.0.1'
+    // Same version as workmanager_android pins — needed to enqueue its
+    // BackgroundWorker from native widget code (the plugin uses
+    // `implementation`, so androidx.work is not exposed transitively).
+    implementation 'androidx.work:work-runtime:2.11.2'
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.4'
 }

android/app/src/main/kotlin/eu/mhsl/marianum/mobile/client/TimetableDayWidget.kt

@@ -4,6 +4,7 @@ import android.appwidget.AppWidgetManager
 import android.appwidget.AppWidgetProvider
 import android.content.Context
 import android.os.Bundle
+import eu.mhsl.marianum.mobile.client.widgets.WidgetRefreshRequester
 import eu.mhsl.marianum.mobile.client.widgets.WidgetRenderer
 
 /**
@@ -11,6 +12,11 @@ import eu.mhsl.marianum.mobile.client.widgets.WidgetRenderer
  * Flutter plugin resolves the receiver class as `<app-package>.<androidName>`.
  */
 class TimetableDayWidget : AppWidgetProvider() {
+    override fun onEnabled(context: Context) {
+        // First widget of this kind placed → fetch fresh data right away.
+        WidgetRefreshRequester.enqueueOneOffRefresh(context)
+    }
+
     override fun onUpdate(
         context: Context,
         appWidgetManager: AppWidgetManager,

android/app/src/main/kotlin/eu/mhsl/marianum/mobile/client/TimetableWeekWidget.kt

@@ -4,9 +4,15 @@ import android.appwidget.AppWidgetManager
 import android.appwidget.AppWidgetProvider
 import android.content.Context
 import android.os.Bundle
+import eu.mhsl.marianum.mobile.client.widgets.WidgetRefreshRequester
 import eu.mhsl.marianum.mobile.client.widgets.WidgetRenderer
 
 class TimetableWeekWidget : AppWidgetProvider() {
+    override fun onEnabled(context: Context) {
+        // First widget of this kind placed → fetch fresh data right away.
+        WidgetRefreshRequester.enqueueOneOffRefresh(context)
+    }
+
     override fun onUpdate(
         context: Context,
         appWidgetManager: AppWidgetManager,

android/app/src/main/kotlin/eu/mhsl/marianum/mobile/client/widgets/WidgetRefreshRequester.kt

@@ -0,0 +1,40 @@
+package eu.mhsl.marianum.mobile.client.widgets
+
+import android.content.Context
+import androidx.work.Constraints
+import androidx.work.Data
+import androidx.work.NetworkType
+import androidx.work.OneTimeWorkRequest
+import androidx.work.WorkManager
+import dev.fluttercommunity.workmanager.BackgroundWorker
+
+/**
+ * Enqueues the app's Dart one-off widget refresh from native code, so a
+ * freshly placed widget populates within seconds instead of waiting for the
+ * next periodic slot.
+ *
+ * DART_TASK_KEY is public plugin API but no semver guarantee — re-verify on
+ * workmanager upgrades. The Dart callback handle comes from SharedPreferences
+ * persisted by Workmanager().initialize(); if the app never ran, the worker
+ * fails gracefully and the widget keeps rendering its cached/empty state.
+ */
+object WidgetRefreshRequester {
+    // Mirrors WidgetBackgroundTask.oneOffTaskName on the Dart side.
+    private const val DART_ONE_OFF_TASK = "eu.mhsl.marianum.widget.refresh.once"
+
+    fun enqueueOneOffRefresh(context: Context) {
+        val request = OneTimeWorkRequest.Builder(BackgroundWorker::class.java)
+            .setInputData(
+                Data.Builder()
+                    .putString(BackgroundWorker.DART_TASK_KEY, DART_ONE_OFF_TASK)
+                    .build(),
+            )
+            .setConstraints(
+                Constraints.Builder()
+                    .setRequiredNetworkType(NetworkType.CONNECTED)
+                    .build(),
+            )
+            .build()
+        WorkManager.getInstance(context).enqueue(request)
+    }
+}

android/app/src/main/kotlin/eu/mhsl/marianum/mobile/client/widgets/WidgetRenderer.kt

@@ -736,8 +736,11 @@ object WidgetRenderer {
         )
     }
 
+    // Mirrors lib/widget_data/widget_sync.dart (the canonical key list) — a
+    // schema bump must land in Dart, Swift (WidgetData.swift) and here
+    // together, or the out-of-sync platform silently renders empty.
     const val KEY_DAY_DATA = "widget_data_day_v1"
-    const val KEY_WEEK_DATA = "widget_data_week_v1"
+    const val KEY_WEEK_DATA = "widget_data_week_v2"
     const val KEY_LOGGED_IN = "widget_data_logged_in_v1"
     const val KEY_THEME_MODE = "widget_setting_theme_mode_v1"
 }

ios/Runner/AppDelegate.swift

@@ -1,6 +1,7 @@
 import Flutter
 import UIKit
 import UserNotifications
+import workmanager_apple
 
 @main
 @objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
@@ -23,6 +24,19 @@ import UserNotifications
   ) -> Bool {
     let result = super.application(application, didFinishLaunchingWithOptions: launchOptions)
     registerTalkCategory()
+    // BGAppRefresh for the home-screen widget. Must all happen before
+    // didFinishLaunching returns: with the UIScene lifecycle Flutter registers
+    // plugins only during scene connection, which is past BGTaskScheduler's
+    // registration deadline — registerLaunchHandlers() bridges that gap.
+    // The task identifier mirrors WidgetBackgroundTask.periodicTaskName; the
+    // plugin re-submits the refresh request itself after every run.
+    WorkmanagerPlugin.setPluginRegistrantCallback { registry in
+      GeneratedPluginRegistrant.register(with: registry)
+    }
+    WorkmanagerPlugin.registerPeriodicTask(
+      withIdentifier: "eu.mhsl.marianum.widget.refresh",
+      earliestBeginInSeconds: 1800)
+    WorkmanagerPlugin.registerLaunchHandlers()
     // FlutterAppDelegate conforms to UNUserNotificationCenterDelegate and
     // forwards these callbacks to the plugins (firebase_messaging,
     // flutter_local_notifications). We route Talk actions natively here — the

ios/Runner/Info.plist

@@ -66,6 +66,10 @@
 		</dict>
 		<key>UIApplicationSupportsIndirectInputEvents</key>
 		<true/>
+		<key>BGTaskSchedulerPermittedIdentifiers</key>
+		<array>
+			<string>eu.mhsl.marianum.widget.refresh</string>
+		</array>
 		<key>UIBackgroundModes</key>
 		<array>
 			<string>fetch</string>

ios/TimetableWidgetExtension/TimetableAnchor.swift

@@ -0,0 +1,109 @@
+import Foundation
+
+/// Pure anchor/slicing logic mirroring `lib/widget_data/widget_data_mapper.dart`
+/// (resolveDayAnchor / resolveWeekAnchor). Keep both sides in sync — the Dart
+/// unit tests in test/widget_data/widget_data_mapper_test.dart double as the
+/// review checklist here:
+///   resolveDayAnchor(Wed 2026-05-06 10:00) == 2026-05-06   (before cutoff)
+///   resolveDayAnchor(Wed 2026-05-06 19:00) == 2026-05-07   (after cutoff)
+///   resolveDayAnchor(Fri 2026-05-08 18:00) == 2026-05-11   (Fri → Mon)
+///   resolveDayAnchor(Sat 2026-05-09 10:00) == 2026-05-11
+///   resolveDayAnchor(Sun 2026-05-10 22:00) == 2026-05-11
+///   resolveWeekAnchor(Tue 2026-05-05 10:00) == 2026-05-04
+///   resolveWeekAnchor(Sun 2026-05-10 10:00) == 2026-05-11
+enum TimetableAnchor {
+    /// After 17:00 the user's question shifts from "what's left today" to
+    /// "what's tomorrow", so the day widget rolls forward.
+    static let dayCutoffHour = 17
+
+    static func resolveDayAnchor(_ now: Date, calendar: Calendar = .current) -> Date {
+        var candidate = calendar.startOfDay(for: now)
+        let shiftToTomorrow =
+            calendar.component(.hour, from: now) >= dayCutoffHour || isWeekend(candidate, calendar: calendar)
+        if shiftToTomorrow {
+            candidate = nextDay(candidate, calendar: calendar)
+        }
+        while isWeekend(candidate, calendar: calendar) {
+            candidate = nextDay(candidate, calendar: calendar)
+        }
+        return candidate
+    }
+
+    static func resolveWeekAnchor(_ now: Date, calendar: Calendar = .current) -> Date {
+        let anchor = resolveDayAnchor(now, calendar: calendar)
+        // Swift weekday: 1 = Sunday … 7 = Saturday → distance back to Monday.
+        let daysFromMonday = (calendar.component(.weekday, from: anchor) + 5) % 7
+        let monday = calendar.date(byAdding: .day, value: -daysFromMonday, to: anchor) ?? anchor
+        return calendar.startOfDay(for: monday)
+    }
+
+    /// Future instants at which the rendered anchor can change: each day's
+    /// midnight (rollover) and 17:00 (cutoff), within the horizon. Sorted,
+    /// strictly after `now`.
+    static func boundaryDates(
+        from now: Date,
+        horizonDays: Int = 3,
+        calendar: Calendar = .current
+    ) -> [Date] {
+        var result: [Date] = []
+        let today = calendar.startOfDay(for: now)
+        for offset in 0...horizonDays {
+            guard let day = calendar.date(byAdding: .day, value: offset, to: today) else { continue }
+            let midnight = calendar.startOfDay(for: day)
+            if midnight > now { result.append(midnight) }
+            if let cutoff = calendar.date(
+                bySettingHour: dayCutoffHour, minute: 0, second: 0, of: day
+            ), cutoff > now {
+                result.append(cutoff)
+            }
+        }
+        return result.sorted()
+    }
+
+    /// Derives a day payload from the 14-day week payload — same shape the
+    /// Dart buildDayData produces, since the week payload runs through the
+    /// identical per-day merge/collision pipeline.
+    static func slice(
+        week: WidgetTimetableData,
+        forDay anchor: Date,
+        calendar: Calendar = .current
+    ) -> WidgetTimetableData {
+        let lessons = week.lessons.filter { calendar.isDate($0.start, inSameDayAs: anchor) }
+        // Every v2 week payload carries `days` — the key bump guarantees it.
+        let dayInfo = week.days?.first { calendar.isDate($0.date, inSameDayAs: anchor) }
+        return WidgetTimetableData(
+            fetchedAt: week.fetchedAt,
+            anchorDate: anchor,
+            lessons: lessons,
+            periods: week.periods,
+            isHoliday: dayInfo?.isHoliday ?? false,
+            holidayName: dayInfo?.holidayName,
+            days: nil
+        )
+    }
+
+    /// Week payload re-anchored to the week containing/following `anchorDate`.
+    /// The week view filters its five columns off `anchorDate`, so this alone
+    /// performs the Friday-evening/weekend jump to next week.
+    static func retarget(week: WidgetTimetableData, anchorDate: Date) -> WidgetTimetableData {
+        WidgetTimetableData(
+            fetchedAt: week.fetchedAt,
+            anchorDate: anchorDate,
+            lessons: week.lessons,
+            periods: week.periods,
+            isHoliday: week.isHoliday,
+            holidayName: week.holidayName,
+            days: week.days
+        )
+    }
+
+    private static func isWeekend(_ date: Date, calendar: Calendar) -> Bool {
+        let weekday = calendar.component(.weekday, from: date)
+        return weekday == 1 || weekday == 7
+    }
+
+    private static func nextDay(_ date: Date, calendar: Calendar) -> Date {
+        let next = calendar.date(byAdding: .day, value: 1, to: date) ?? date
+        return calendar.startOfDay(for: next)
+    }
+}

ios/TimetableWidgetExtension/TimetableDayView.swift

@@ -100,13 +100,13 @@ struct TimetableDayView: View {
 
     private func header(data: WidgetTimetableData) -> some View {
         HStack(spacing: 4) {
-            Text(dayLabel(for: data.anchorDate))
+            Text(dayLabel(for: data.anchorDate, relativeTo: entry.date))
                 .font(.system(size: 13, weight: .semibold))
                 .foregroundStyle(palette.textPrimary)
                 .lineLimit(1)
                 .minimumScaleFactor(0.7)
             Spacer(minLength: 4)
-            Text("Stand: \(freshnessLabel(for: data.fetchedAt))")
+            Text("Stand: \(freshnessLabel(for: data.fetchedAt, relativeTo: entry.date))")
                 .font(.system(size: 9))
                 .foregroundStyle(palette.textSecondary)
                 .lineLimit(1)
@@ -383,6 +383,7 @@ struct TimeGridView: View {
         case .irregular: return Color(red: 143/255.0, green: 25/255.0, blue: 179/255.0)
         case .teacherChanged: return Color(red: 41/255.0, green: 99/255.0, blue: 155/255.0)
         case .event: return Color(red: 239/255.0, green: 108/255.0, blue: 0/255.0)
+        case .duty: return Color(red: 0/255.0, green: 121/255.0, blue: 107/255.0)
         }
     }
 }
@@ -400,9 +401,31 @@ func periodBoundaries(_ periods: [WidgetPeriod]) -> [Int] {
     return result.sorted()
 }
 
-func dayLabel(for date: Date) -> String {
+/// Fixed-locale formatters cached once — DateFormatter setup is the
+/// expensive part and the multi-entry timelines render up to ~8 entries per
+/// reload. Only touched from WidgetKit's archival rendering, so the shared
+/// instances are safe.
+enum WidgetDateFormatters {
+    static let shortDate = make("dd.MM.")
+    static let weekdayShort = make("EE")
+    static let weekdayDate = make("EEEE · dd.MM.")
+    static let time = make("HH:mm")
+    static let dateTime = make("dd.MM. HH:mm")
+
+    private static func make(_ format: String) -> DateFormatter {
+        let f = DateFormatter()
+        f.locale = Locale(identifier: "de_DE")
+        f.dateFormat = format
+        return f
+    }
+}
+
+/// `now` is the timeline entry's date, not `Date()`: WidgetKit archives
+/// entries ahead of time, so wall-clock reads would be wrong for every
+/// entry after the first.
+func dayLabel(for date: Date, relativeTo now: Date) -> String {
     let cal = Calendar.current
-    let today = cal.startOfDay(for: Date())
+    let today = cal.startOfDay(for: now)
     let anchor = cal.startOfDay(for: date)
     if anchor == today {
         return "Heute · \(shortDate(date))"
@@ -410,35 +433,23 @@ func dayLabel(for date: Date) -> String {
     if let tomorrow = cal.date(byAdding: .day, value: 1, to: today), anchor == tomorrow {
         return "Morgen · \(shortDate(date))"
     }
-    let formatter = DateFormatter()
-    formatter.locale = Locale(identifier: "de_DE")
-    formatter.dateFormat = "EEEE · dd.MM."
-    return formatter.string(from: date)
+    return WidgetDateFormatters.weekdayDate.string(from: date)
 }
 
 func shortDate(_ date: Date) -> String {
-    let f = DateFormatter()
-    f.locale = Locale(identifier: "de_DE")
-    f.dateFormat = "dd.MM."
-    return f.string(from: date)
+    WidgetDateFormatters.shortDate.string(from: date)
 }
 
-func freshnessLabel(for fetchedAt: Date) -> String {
+func freshnessLabel(for fetchedAt: Date, relativeTo now: Date) -> String {
     let cal = Calendar.current
-    let today = cal.startOfDay(for: Date())
+    let today = cal.startOfDay(for: now)
     let fetchedDay = cal.startOfDay(for: fetchedAt)
-    let timeFmt = DateFormatter()
-    timeFmt.locale = Locale(identifier: "de_DE")
-    timeFmt.dateFormat = "HH:mm"
     if fetchedDay == today {
-        return timeFmt.string(from: fetchedAt)
+        return WidgetDateFormatters.time.string(from: fetchedAt)
     }
     if let yesterday = cal.date(byAdding: .day, value: -1, to: today),
        fetchedDay == yesterday {
-        return "gestern \(timeFmt.string(from: fetchedAt))"
+        return "gestern \(WidgetDateFormatters.time.string(from: fetchedAt))"
     }
-    let dateTimeFmt = DateFormatter()
-    dateTimeFmt.locale = Locale(identifier: "de_DE")
-    dateTimeFmt.dateFormat = "dd.MM. HH:mm"
-    return dateTimeFmt.string(from: fetchedAt)
+    return WidgetDateFormatters.dateTime.string(from: fetchedAt)
 }

ios/TimetableWidgetExtension/TimetableWeekView.swift

@@ -70,7 +70,7 @@ struct TimetableWeekView: View {
                 .lineLimit(1)
                 .minimumScaleFactor(0.8)
             Spacer()
-            Text("Stand: \(freshnessLabel(for: data.fetchedAt))")
+            Text("Stand: \(freshnessLabel(for: data.fetchedAt, relativeTo: entry.date))")
                 .font(.system(size: 9))
                 .foregroundStyle(palette.textSecondary)
                 .lineLimit(1)
@@ -168,10 +168,7 @@ struct TimetableWeekView: View {
     }
 
     private func weekday(for date: Date) -> String {
-        let f = DateFormatter()
-        f.locale = Locale(identifier: "de_DE")
-        f.dateFormat = "EE"
-        return f.string(from: date)
+        WidgetDateFormatters.weekdayShort.string(from: date)
     }
 
     private func placeholder(_ message: String) -> some View {

ios/TimetableWidgetExtension/TimetableWidgetExtension.swift

@@ -41,11 +41,13 @@ struct TimetableDayProvider: TimelineProvider {
         in context: Context,
         completion: @escaping (Timeline<TimetableEntry>) -> Void
     ) {
-        let entry = TimetableEntry.current(variant: .day)
+        let now = Date()
         // 30 min mirrors the Dart workmanager cadence. iOS treats this as
-        // advisory; the "Stand:" label tells the user when data is stale.
-        let next = Calendar.current.date(byAdding: .minute, value: 30, to: Date()) ?? Date()
-        completion(Timeline(entries: [entry], policy: .after(next)))
+        // advisory; the boundary entries below keep the rendered day correct
+        // even when no reload is granted, and the "Stand:" label tells the
+        // user when the underlying data is stale.
+        let next = Calendar.current.date(byAdding: .minute, value: 30, to: now) ?? now
+        completion(Timeline(entries: TimetableEntry.dayEntries(now: now), policy: .after(next)))
     }
 }
 
@@ -80,9 +82,9 @@ struct TimetableWeekProvider: TimelineProvider {
         in context: Context,
         completion: @escaping (Timeline<TimetableEntry>) -> Void
     ) {
-        let entry = TimetableEntry.current(variant: .week)
-        let next = Calendar.current.date(byAdding: .minute, value: 30, to: Date()) ?? Date()
-        completion(Timeline(entries: [entry], policy: .after(next)))
+        let now = Date()
+        let next = Calendar.current.date(byAdding: .minute, value: 30, to: now) ?? now
+        completion(Timeline(entries: TimetableEntry.weekEntries(now: now), policy: .after(next)))
     }
 }
 
@@ -120,6 +122,58 @@ struct TimetableEntry: TimelineEntry {
             themeMode: WidgetDataLoader.themeMode()
         )
     }
+
+    /// Day timeline derived from the 14-day week payload, so the widget shows
+    /// the right day even when iOS grants no reload for days.
+    static func dayEntries(now: Date) -> [TimetableEntry] {
+        entries(now: now, variant: .day) { week, date in
+            TimetableAnchor.slice(week: week, forDay: TimetableAnchor.resolveDayAnchor(date))
+        }
+    }
+
+    /// Week timeline: re-anchoring performs the Friday-evening/weekend jump
+    /// into next week from cached data, and the midnight entries keep the
+    /// "Stand:" freshness label honest.
+    static func weekEntries(now: Date) -> [TimetableEntry] {
+        entries(now: now, variant: .week) { week, date in
+            TimetableAnchor.retarget(week: week, anchorDate: TimetableAnchor.resolveWeekAnchor(date))
+        }
+    }
+
+    /// Shared timeline skeleton: one entry now plus one per anchor boundary
+    /// (midnight rollover, 17:00 cutoff). Boundaries that cannot change the
+    /// render — same anchor and same calendar day for the header labels —
+    /// are dropped.
+    private static func entries(
+        now: Date,
+        variant: TimetableVariant,
+        transform: (WidgetTimetableData, Date) -> WidgetTimetableData
+    ) -> [TimetableEntry] {
+        guard WidgetDataLoader.isLoggedIn(), let week = WidgetDataLoader.loadWeek() else {
+            // Logged out, or no v2 week snapshot yet (fresh app update):
+            // fall back to the legacy single-entry payload.
+            return [TimetableEntry.current(variant: variant)]
+        }
+        let theme = WidgetDataLoader.themeMode()
+        let cal = Calendar.current
+        var result: [TimetableEntry] = []
+        for date in [now] + TimetableAnchor.boundaryDates(from: now) {
+            let data = transform(week, date)
+            if let previous = result.last, let previousData = previous.data,
+               cal.isDate(previousData.anchorDate, inSameDayAs: data.anchorDate),
+               cal.isDate(previous.date, inSameDayAs: date) {
+                continue
+            }
+            result.append(TimetableEntry(
+                date: date,
+                variant: variant,
+                data: data,
+                isLoggedIn: true,
+                themeMode: theme
+            ))
+        }
+        return result
+    }
 }
 
 extension View {

ios/TimetableWidgetExtension/WidgetData.swift

@@ -10,6 +10,15 @@ enum WidgetLessonStatus: String, Codable {
     case irregular
     case teacherChanged
     case event
+    case duty
+
+    /// Unknown future statuses degrade to `.regular` instead of failing the
+    /// whole payload decode (mirrors WidgetData.kt's fromWire fallback) — a
+    /// single new enum value must never blank the widget to the placeholder.
+    init(from decoder: Decoder) throws {
+        let raw = try decoder.singleValueContainer().decode(String.self)
+        self = WidgetLessonStatus(rawValue: raw) ?? .regular
+    }
 }
 
 struct WidgetLesson: Codable {
@@ -33,6 +42,12 @@ struct WidgetPeriod: Codable {
     let virtualEndMinutes: Int
 }
 
+struct WidgetDayInfo: Codable {
+    let date: Date
+    let isHoliday: Bool
+    let holidayName: String?
+}
+
 struct WidgetTimetableData: Codable {
     let fetchedAt: Date
     let anchorDate: Date
@@ -40,12 +55,17 @@ struct WidgetTimetableData: Codable {
     let periods: [WidgetPeriod]
     let isHoliday: Bool
     let holidayName: String?
+    /// Week payload (v2) only; optional so day payloads keep decoding.
+    let days: [WidgetDayInfo]?
 }
 
+/// Mirrors lib/widget_data/widget_sync.dart (the canonical key list) — a
+/// schema bump must land in Dart, Kotlin (WidgetRenderer.kt) and here
+/// together, or the out-of-sync platform silently blanks to the placeholder.
 enum WidgetDataKey {
     static let appGroupId = "group.eu.mhsl.marianum.mobile.client.widget"
     static let dayData = "widget_data_day_v1"
-    static let weekData = "widget_data_week_v1"
+    static let weekData = "widget_data_week_v2"
     static let loggedIn = "widget_data_logged_in_v1"
     static let themeMode = "widget_setting_theme_mode_v1"
 }

lib/background/widget_background_task.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'dart:developer';
+import 'dart:io';
 
 import 'package:flutter/widgets.dart';
 import 'package:workmanager/workmanager.dart';
@@ -32,12 +33,20 @@ class WidgetBackgroundTask {
 
   static const Duration periodicFrequency = Duration(minutes: 30);
 
+  /// A snapshot younger than this is considered fresh enough — a second
+  /// trigger within the window (push + periodic slot coinciding) is skipped.
+  static const Duration refreshDebounce = Duration(minutes: 10);
+
   static Future<void> initialize() async {
     await Workmanager().initialize(_callbackDispatcher);
     await Workmanager().registerPeriodicTask(
       periodicTaskName,
       periodicTaskName,
       frequency: periodicFrequency,
+      // iOS ignores `frequency:` and instead uses initialDelay as the
+      // BGAppRefresh earliestBeginDate on every (auto-)resubmission —
+      // without it each completed run is immediately eligible again.
+      initialDelay: Platform.isIOS ? periodicFrequency : Duration.zero,
       constraints: Constraints(networkType: NetworkType.connected),
       existingWorkPolicy: ExistingPeriodicWorkPolicy.keep,
       backoffPolicy: BackoffPolicy.linear,
@@ -45,7 +54,21 @@ class WidgetBackgroundTask {
     );
   }
 
-  static Future<void> requestImmediateRefresh() async {
+  /// Single owner of the platform strategy for "refresh soon": Android
+  /// enqueues a WorkManager one-off (retry + network constraint included),
+  /// iOS runs inline — one-off Workmanager tasks there only execute
+  /// in-process anyway, so the direct call is equivalent and skips the extra
+  /// background engine. [inlineTimeout] bounds the inline path for callers
+  /// with a hard budget (FCM handler).
+  static Future<void> requestImmediateRefresh({
+    bool force = true,
+    Duration? inlineTimeout,
+  }) async {
+    if (Platform.isIOS) {
+      final refresh = runRefreshNow(force: force);
+      await (inlineTimeout == null ? refresh : refresh.timeout(inlineTimeout));
+      return;
+    }
     await Workmanager().registerOneOffTask(
       '$oneOffTaskName-${DateTime.now().millisecondsSinceEpoch}',
       oneOffTaskName,
@@ -54,24 +77,61 @@ class WidgetBackgroundTask {
     );
   }
 
+  /// Shared refresh entry for the periodic worker, push triggers, and login.
+  /// Throws on fetch failure so the worker path can signal a retry.
+  static Future<void> runRefreshNow({bool force = false}) async {
+    await WidgetSync.ensureInitialized();
+    bool populated;
+    try {
+      // Bounded: a hanging keystore read must not stall the caller's budget
+      // (FCM handler ~25s on iOS) forever.
+      populated = await AccountData().waitForPopulation().timeout(
+        const Duration(seconds: 10),
+      );
+    } on TimeoutException {
+      populated = false;
+    }
+    if (!populated) {
+      // Deliberately does NOT flip the widget to logged-out: a failed or slow
+      // keychain read (locked iOS device during the 06:00 silent push) is
+      // indistinguishable from "never logged in" here, and blanking the
+      // widget on a transient failure is worse than keeping the snapshot.
+      // Logout/login manage the flag explicitly (WidgetSync.clear / login).
+      log('[widget-refresh] credentials unavailable, skipping refresh');
+      return;
+    }
+    final fetchedAt = await WidgetSync.getFetchedAt();
+    if (shouldSkipRefresh(fetchedAt: fetchedAt, now: DateTime.now(), force: force)) {
+      log('[widget-refresh] snapshot is fresh, skipping refresh');
+      return;
+    }
+    await _refresh();
+  }
+
   static Future<void> cancelAll() async {
     await Workmanager().cancelAll();
   }
 }
 
+/// Pure debounce decision so it stays unit-testable. A `fetchedAt` in the
+/// future (clock change, debug time shift) never skips — refreshing is the
+/// safe direction.
+bool shouldSkipRefresh({
+  required DateTime? fetchedAt,
+  required DateTime now,
+  required bool force,
+}) {
+  if (force || fetchedAt == null) return false;
+  final age = now.difference(fetchedAt);
+  return !age.isNegative && age < WidgetBackgroundTask.refreshDebounce;
+}
+
 @pragma('vm:entry-point')
 void _callbackDispatcher() {
   Workmanager().executeTask((task, inputData) async {
     try {
       WidgetsFlutterBinding.ensureInitialized();
-      await AccountData().waitForPopulation();
-      if (!AccountData().isPopulated()) {
-        log('[widget-bg] not logged in, skipping refresh');
-        await WidgetSync.setLoggedIn(false);
-        await WidgetSync.triggerUpdate();
-        return true;
-      }
-      await _refresh();
+      await WidgetBackgroundTask.runRefreshNow();
       return true;
     } on Exception catch (e, s) {
       log('[widget-bg] refresh failed: $e', stackTrace: s);
@@ -94,35 +154,44 @@ Future<void> _refresh() async {
   }
 
   final now = WidgetPublisher.widgetNow();
-  // 14-day window so the week-widget rolls forward into next Monday's
-  // lessons on Friday evening.
-  final weekStart = _startOfWeek(now);
-  final weekEndExclusive = weekStart.add(const Duration(days: 14));
+  // Fetch window matches the week payload's window so the widget can roll
+  // forward into next week's lessons without fresh data.
+  final weekStart = WidgetDataMapper.startOfCalendarWeek(now);
+  final weekEndExclusive = weekStart.add(
+    const Duration(days: WidgetDataMapper.weekWindowDays),
+  );
 
-  final timetable = await TimetableGetWeek().run(
+  // All six requests are independent — run them concurrently so the total
+  // latency is the slowest request, not the sum (matters for the push path's
+  // hard time budget). Reference-data failures fall through to null in the
+  // mapper rather than aborting the whole refresh.
+  final timetableFuture = TimetableGetWeek().run(
     from: weekStart,
     until: weekEndExclusive.subtract(const Duration(days: 1)),
   );
-
-  // Reference data — failures fall through to null in the mapper rather
-  // than aborting the whole refresh.
-  final subjects = await _runOrNull<TimetableGetSubjectsResponse>(
+  final subjectsFuture = _runOrNull<TimetableGetSubjectsResponse>(
     () => TimetableGetSubjects().run(),
   );
-  final rooms = await _runOrNull<TimetableGetRoomsResponse>(
+  final roomsFuture = _runOrNull<TimetableGetRoomsResponse>(
     () => TimetableGetRooms().run(),
   );
-  final holidays = await _runOrNull<TimetableGetHolidaysResponse>(
+  final holidaysFuture = _runOrNull<TimetableGetHolidaysResponse>(
     () => TimetableGetHolidays().run(),
   );
-  final timegrid = await _runOrNull<TimetableGetTimegridResponse>(
+  final timegridFuture = _runOrNull<TimetableGetTimegridResponse>(
     () => TimetableGetTimegrid().run(),
   );
-  final customEvents = await _runOrNull<GetCustomTimetableEventResponse>(
+  final customEventsFuture = _runOrNull<GetCustomTimetableEventResponse>(
     () => GetCustomTimetableEvent(
       GetCustomTimetableEventParams(AccountData().getUserSecret()),
     ).run(),
   );
+  final timetable = await timetableFuture;
+  final subjects = await subjectsFuture;
+  final rooms = await roomsFuture;
+  final holidays = await holidaysFuture;
+  final timegrid = await timegridFuture;
+  final customEvents = await customEventsFuture;
 
   final lessons = timetable.entries;
 
@@ -158,11 +227,6 @@ Future<void> _refresh() async {
   );
 }
 
-DateTime _startOfWeek(DateTime reference) {
-  final monday = reference.subtract(Duration(days: reference.weekday - 1));
-  return DateTime(monday.year, monday.month, monday.day);
-}
-
 Future<T?> _runOrNull<T>(Future<T> Function() task) async {
   try {
     return await task();

lib/push/push_message_handler.dart

@@ -3,6 +3,7 @@ import 'dart:developer';
 import 'package:crypton/crypton.dart';
 import 'package:firebase_messaging/firebase_messaging.dart';
 
+import '../background/widget_background_task.dart';
 import '../notification/notification_service.dart';
 import 'chat_thread_store.dart';
 import 'nid_store.dart';
@@ -12,6 +13,10 @@ import 'push_registration_store.dart';
 import 'push_renderer.dart';
 import 'push_subject.dart';
 
+/// Wire value of the FCM `type` field for silent widget-refresh pushes.
+/// Mirrors PUSH_TYPE_WIDGET_REFRESH in MarianumConnect's MarMobileApiService.
+const String widgetRefreshPushType = 'widget-refresh';
+
 /// How an incoming FCM payload should be interpreted.
 enum PushKind {
   /// Encrypted Nextcloud push-v2 notification (`subject` + `signature`).
@@ -20,6 +25,11 @@ enum PushKind {
   /// Plaintext MarianumConnect direct push (`source == "connect"`).
   connect,
 
+  /// Silent MarianumConnect push requesting a home-widget data refresh
+  /// (`source == "connect"` + `type == "widget-refresh"`). Never rendered,
+  /// processed even with notifications off.
+  widgetRefresh,
+
   /// Neither — ignored.
   unknown,
 }
@@ -31,7 +41,10 @@ PushKind classifyPush(Map<String, dynamic> data) {
   final hasSubject = (data['subject'] as String?)?.isNotEmpty ?? false;
   final hasSignature = (data['signature'] as String?)?.isNotEmpty ?? false;
   if (hasSubject && hasSignature) return PushKind.nextcloud;
-  if (data['source'] == 'connect') return PushKind.connect;
+  if (data['source'] == 'connect') {
+    if (data['type'] == widgetRefreshPushType) return PushKind.widgetRefresh;
+    return PushKind.connect;
+  }
   return PushKind.unknown;
 }
 
@@ -97,11 +110,30 @@ class PushMessageHandler {
           notificationsEnabled: notificationsEnabled,
         );
         break;
+      case PushKind.widgetRefresh:
+        // Deliberately before any notificationsEnabled gate: silent sync
+        // pushes must work with notifications off.
+        await _handleWidgetRefresh();
+        break;
       case PushKind.unknown:
         break;
     }
   }
 
+  Future<void> _handleWidgetRefresh() async {
+    try {
+      // The iOS FCM handler runs in the main isolate with a ~25s APNs
+      // budget — bound the inline refresh below that so the completion
+      // handler always fires in time.
+      await WidgetBackgroundTask.requestImmediateRefresh(
+        force: false,
+        inlineTimeout: const Duration(seconds: 20),
+      );
+    } on Exception catch (e) {
+      log('[push] widget refresh failed: $e');
+    }
+  }
+
   Future<void> _handleConnect(
     RemoteMessage message, {
     required bool foreground,

lib/widget_data/widget_data.dart

@@ -61,6 +61,20 @@ abstract class WidgetPeriod with _$WidgetPeriod {
       _$WidgetPeriodFromJson(json);
 }
 
+/// Per-day metadata for the week payload, so native renderers can derive a
+/// single day's view (including its holiday state) without a day payload.
+@freezed
+abstract class WidgetDayInfo with _$WidgetDayInfo {
+  const factory WidgetDayInfo({
+    required DateTime date,
+    @Default(false) bool isHoliday,
+    String? holidayName,
+  }) = _WidgetDayInfo;
+
+  factory WidgetDayInfo.fromJson(Map<String, Object?> json) =>
+      _$WidgetDayInfoFromJson(json);
+}
+
 @freezed
 abstract class WidgetTimetableData with _$WidgetTimetableData {
   const factory WidgetTimetableData({
@@ -73,6 +87,8 @@ abstract class WidgetTimetableData with _$WidgetTimetableData {
     @Default(<WidgetPeriod>[]) List<WidgetPeriod> periods,
     @Default(false) bool isHoliday,
     String? holidayName,
+    /// Week payload only: one entry per day of the covered window.
+    @Default(<WidgetDayInfo>[]) List<WidgetDayInfo> days,
   }) = _WidgetTimetableData;
 
   factory WidgetTimetableData.fromJson(Map<String, Object?> json) =>

lib/widget_data/widget_data.freezed.dart

@@ -593,13 +593,283 @@ as int,
 }
 
 
+/// @nodoc
+mixin _$WidgetDayInfo {
+
+ DateTime get date; bool get isHoliday; String? get holidayName;
+/// Create a copy of WidgetDayInfo
+/// with the given fields replaced by the non-null parameter values.
+@JsonKey(includeFromJson: false, includeToJson: false)
+@pragma('vm:prefer-inline')
+$WidgetDayInfoCopyWith<WidgetDayInfo> get copyWith => _$WidgetDayInfoCopyWithImpl<WidgetDayInfo>(this as WidgetDayInfo, _$identity);
+
+  /// Serializes this WidgetDayInfo to a JSON map.
+  Map<String, dynamic> toJson();
+
+
+@override
+bool operator ==(Object other) {
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is WidgetDayInfo&&(identical(other.date, date) || other.date == date)&&(identical(other.isHoliday, isHoliday) || other.isHoliday == isHoliday)&&(identical(other.holidayName, holidayName) || other.holidayName == holidayName));
+}
+
+@JsonKey(includeFromJson: false, includeToJson: false)
+@override
+int get hashCode => Object.hash(runtimeType,date,isHoliday,holidayName);
+
+@override
+String toString() {
+  return 'WidgetDayInfo(date: $date, isHoliday: $isHoliday, holidayName: $holidayName)';
+}
+
+
+}
+
+/// @nodoc
+abstract mixin class $WidgetDayInfoCopyWith<$Res>  {
+  factory $WidgetDayInfoCopyWith(WidgetDayInfo value, $Res Function(WidgetDayInfo) _then) = _$WidgetDayInfoCopyWithImpl;
+@useResult
+$Res call({
+ DateTime date, bool isHoliday, String? holidayName
+});
+
+
+
+
+}
+/// @nodoc
+class _$WidgetDayInfoCopyWithImpl<$Res>
+    implements $WidgetDayInfoCopyWith<$Res> {
+  _$WidgetDayInfoCopyWithImpl(this._self, this._then);
+
+  final WidgetDayInfo _self;
+  final $Res Function(WidgetDayInfo) _then;
+
+/// Create a copy of WidgetDayInfo
+/// with the given fields replaced by the non-null parameter values.
+@pragma('vm:prefer-inline') @override $Res call({Object? date = null,Object? isHoliday = null,Object? holidayName = freezed,}) {
+  return _then(_self.copyWith(
+date: null == date ? _self.date : date // ignore: cast_nullable_to_non_nullable
+as DateTime,isHoliday: null == isHoliday ? _self.isHoliday : isHoliday // ignore: cast_nullable_to_non_nullable
+as bool,holidayName: freezed == holidayName ? _self.holidayName : holidayName // ignore: cast_nullable_to_non_nullable
+as String?,
+  ));
+}
+
+}
+
+
+/// Adds pattern-matching-related methods to [WidgetDayInfo].
+extension WidgetDayInfoPatterns on WidgetDayInfo {
+/// A variant of `map` that fallback to returning `orElse`.
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case final Subclass value:
+///     return ...;
+///   case _:
+///     return orElse();
+/// }
+/// ```
+
+@optionalTypeArgs TResult maybeMap<TResult extends Object?>(TResult Function( _WidgetDayInfo value)?  $default,{required TResult orElse(),}){
+final _that = this;
+switch (_that) {
+case _WidgetDayInfo() when $default != null:
+return $default(_that);case _:
+  return orElse();
+
+}
+}
+/// A `switch`-like method, using callbacks.
+///
+/// Callbacks receives the raw object, upcasted.
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case final Subclass value:
+///     return ...;
+///   case final Subclass2 value:
+///     return ...;
+/// }
+/// ```
+
+@optionalTypeArgs TResult map<TResult extends Object?>(TResult Function( _WidgetDayInfo value)  $default,){
+final _that = this;
+switch (_that) {
+case _WidgetDayInfo():
+return $default(_that);case _:
+  throw StateError('Unexpected subclass');
+
+}
+}
+/// A variant of `map` that fallback to returning `null`.
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case final Subclass value:
+///     return ...;
+///   case _:
+///     return null;
+/// }
+/// ```
+
+@optionalTypeArgs TResult? mapOrNull<TResult extends Object?>(TResult? Function( _WidgetDayInfo value)?  $default,){
+final _that = this;
+switch (_that) {
+case _WidgetDayInfo() when $default != null:
+return $default(_that);case _:
+  return null;
+
+}
+}
+/// A variant of `when` that fallback to an `orElse` callback.
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case Subclass(:final field):
+///     return ...;
+///   case _:
+///     return orElse();
+/// }
+/// ```
+
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( DateTime date,  bool isHoliday,  String? holidayName)?  $default,{required TResult orElse(),}) {final _that = this;
+switch (_that) {
+case _WidgetDayInfo() when $default != null:
+return $default(_that.date,_that.isHoliday,_that.holidayName);case _:
+  return orElse();
+
+}
+}
+/// A `switch`-like method, using callbacks.
+///
+/// As opposed to `map`, this offers destructuring.
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case Subclass(:final field):
+///     return ...;
+///   case Subclass2(:final field2):
+///     return ...;
+/// }
+/// ```
+
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( DateTime date,  bool isHoliday,  String? holidayName)  $default,) {final _that = this;
+switch (_that) {
+case _WidgetDayInfo():
+return $default(_that.date,_that.isHoliday,_that.holidayName);case _:
+  throw StateError('Unexpected subclass');
+
+}
+}
+/// A variant of `when` that fallback to returning `null`
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case Subclass(:final field):
+///     return ...;
+///   case _:
+///     return null;
+/// }
+/// ```
+
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( DateTime date,  bool isHoliday,  String? holidayName)?  $default,) {final _that = this;
+switch (_that) {
+case _WidgetDayInfo() when $default != null:
+return $default(_that.date,_that.isHoliday,_that.holidayName);case _:
+  return null;
+
+}
+}
+
+}
+
+/// @nodoc
+@JsonSerializable()
+
+class _WidgetDayInfo implements WidgetDayInfo {
+  const _WidgetDayInfo({required this.date, this.isHoliday = false, this.holidayName});
+  factory _WidgetDayInfo.fromJson(Map<String, dynamic> json) => _$WidgetDayInfoFromJson(json);
+
+@override final  DateTime date;
+@override@JsonKey() final  bool isHoliday;
+@override final  String? holidayName;
+
+/// Create a copy of WidgetDayInfo
+/// with the given fields replaced by the non-null parameter values.
+@override @JsonKey(includeFromJson: false, includeToJson: false)
+@pragma('vm:prefer-inline')
+_$WidgetDayInfoCopyWith<_WidgetDayInfo> get copyWith => __$WidgetDayInfoCopyWithImpl<_WidgetDayInfo>(this, _$identity);
+
+@override
+Map<String, dynamic> toJson() {
+  return _$WidgetDayInfoToJson(this, );
+}
+
+@override
+bool operator ==(Object other) {
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is _WidgetDayInfo&&(identical(other.date, date) || other.date == date)&&(identical(other.isHoliday, isHoliday) || other.isHoliday == isHoliday)&&(identical(other.holidayName, holidayName) || other.holidayName == holidayName));
+}
+
+@JsonKey(includeFromJson: false, includeToJson: false)
+@override
+int get hashCode => Object.hash(runtimeType,date,isHoliday,holidayName);
+
+@override
+String toString() {
+  return 'WidgetDayInfo(date: $date, isHoliday: $isHoliday, holidayName: $holidayName)';
+}
+
+
+}
+
+/// @nodoc
+abstract mixin class _$WidgetDayInfoCopyWith<$Res> implements $WidgetDayInfoCopyWith<$Res> {
+  factory _$WidgetDayInfoCopyWith(_WidgetDayInfo value, $Res Function(_WidgetDayInfo) _then) = __$WidgetDayInfoCopyWithImpl;
+@override @useResult
+$Res call({
+ DateTime date, bool isHoliday, String? holidayName
+});
+
+
+
+
+}
+/// @nodoc
+class __$WidgetDayInfoCopyWithImpl<$Res>
+    implements _$WidgetDayInfoCopyWith<$Res> {
+  __$WidgetDayInfoCopyWithImpl(this._self, this._then);
+
+  final _WidgetDayInfo _self;
+  final $Res Function(_WidgetDayInfo) _then;
+
+/// Create a copy of WidgetDayInfo
+/// with the given fields replaced by the non-null parameter values.
+@override @pragma('vm:prefer-inline') $Res call({Object? date = null,Object? isHoliday = null,Object? holidayName = freezed,}) {
+  return _then(_WidgetDayInfo(
+date: null == date ? _self.date : date // ignore: cast_nullable_to_non_nullable
+as DateTime,isHoliday: null == isHoliday ? _self.isHoliday : isHoliday // ignore: cast_nullable_to_non_nullable
+as bool,holidayName: freezed == holidayName ? _self.holidayName : holidayName // ignore: cast_nullable_to_non_nullable
+as String?,
+  ));
+}
+
+
+}
+
+
 /// @nodoc
 mixin _$WidgetTimetableData {
 
  DateTime get fetchedAt;/// The day this widget snapshot is "about" — display anchor.
 /// For the day variant: the rendered school day.
 /// For the week variant: the Monday of the rendered school week.
- DateTime get anchorDate; List<WidgetLesson> get lessons; List<WidgetPeriod> get periods; bool get isHoliday; String? get holidayName;
+ DateTime get anchorDate; List<WidgetLesson> get lessons; List<WidgetPeriod> get periods; bool get isHoliday; String? get holidayName;/// Week payload only: one entry per day of the covered window.
+ List<WidgetDayInfo> get days;
 /// Create a copy of WidgetTimetableData
 /// with the given fields replaced by the non-null parameter values.
 @JsonKey(includeFromJson: false, includeToJson: false)
@@ -612,16 +882,16 @@ $WidgetTimetableDataCopyWith<WidgetTimetableData> get copyWith => _$WidgetTimeta
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is WidgetTimetableData&&(identical(other.fetchedAt, fetchedAt) || other.fetchedAt == fetchedAt)&&(identical(other.anchorDate, anchorDate) || other.anchorDate == anchorDate)&&const DeepCollectionEquality().equals(other.lessons, lessons)&&const DeepCollectionEquality().equals(other.periods, periods)&&(identical(other.isHoliday, isHoliday) || other.isHoliday == isHoliday)&&(identical(other.holidayName, holidayName) || other.holidayName == holidayName));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is WidgetTimetableData&&(identical(other.fetchedAt, fetchedAt) || other.fetchedAt == fetchedAt)&&(identical(other.anchorDate, anchorDate) || other.anchorDate == anchorDate)&&const DeepCollectionEquality().equals(other.lessons, lessons)&&const DeepCollectionEquality().equals(other.periods, periods)&&(identical(other.isHoliday, isHoliday) || other.isHoliday == isHoliday)&&(identical(other.holidayName, holidayName) || other.holidayName == holidayName)&&const DeepCollectionEquality().equals(other.days, days));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,fetchedAt,anchorDate,const DeepCollectionEquality().hash(lessons),const DeepCollectionEquality().hash(periods),isHoliday,holidayName);
+int get hashCode => Object.hash(runtimeType,fetchedAt,anchorDate,const DeepCollectionEquality().hash(lessons),const DeepCollectionEquality().hash(periods),isHoliday,holidayName,const DeepCollectionEquality().hash(days));
 
 @override
 String toString() {
-  return 'WidgetTimetableData(fetchedAt: $fetchedAt, anchorDate: $anchorDate, lessons: $lessons, periods: $periods, isHoliday: $isHoliday, holidayName: $holidayName)';
+  return 'WidgetTimetableData(fetchedAt: $fetchedAt, anchorDate: $anchorDate, lessons: $lessons, periods: $periods, isHoliday: $isHoliday, holidayName: $holidayName, days: $days)';
 }
 
 
@@ -632,7 +902,7 @@ abstract mixin class $WidgetTimetableDataCopyWith<$Res>  {
   factory $WidgetTimetableDataCopyWith(WidgetTimetableData value, $Res Function(WidgetTimetableData) _then) = _$WidgetTimetableDataCopyWithImpl;
 @useResult
 $Res call({
- DateTime fetchedAt, DateTime anchorDate, List<WidgetLesson> lessons, List<WidgetPeriod> periods, bool isHoliday, String? holidayName
+ DateTime fetchedAt, DateTime anchorDate, List<WidgetLesson> lessons, List<WidgetPeriod> periods, bool isHoliday, String? holidayName, List<WidgetDayInfo> days
 });
 
 
@@ -649,7 +919,7 @@ class _$WidgetTimetableDataCopyWithImpl<$Res>
 
 /// Create a copy of WidgetTimetableData
 /// with the given fields replaced by the non-null parameter values.
-@pragma('vm:prefer-inline') @override $Res call({Object? fetchedAt = null,Object? anchorDate = null,Object? lessons = null,Object? periods = null,Object? isHoliday = null,Object? holidayName = freezed,}) {
+@pragma('vm:prefer-inline') @override $Res call({Object? fetchedAt = null,Object? anchorDate = null,Object? lessons = null,Object? periods = null,Object? isHoliday = null,Object? holidayName = freezed,Object? days = null,}) {
   return _then(_self.copyWith(
 fetchedAt: null == fetchedAt ? _self.fetchedAt : fetchedAt // ignore: cast_nullable_to_non_nullable
 as DateTime,anchorDate: null == anchorDate ? _self.anchorDate : anchorDate // ignore: cast_nullable_to_non_nullable
@@ -657,7 +927,8 @@ as DateTime,lessons: null == lessons ? _self.lessons : lessons // ignore: cast_n
 as List<WidgetLesson>,periods: null == periods ? _self.periods : periods // ignore: cast_nullable_to_non_nullable
 as List<WidgetPeriod>,isHoliday: null == isHoliday ? _self.isHoliday : isHoliday // ignore: cast_nullable_to_non_nullable
 as bool,holidayName: freezed == holidayName ? _self.holidayName : holidayName // ignore: cast_nullable_to_non_nullable
-as String?,
+as String?,days: null == days ? _self.days : days // ignore: cast_nullable_to_non_nullable
+as List<WidgetDayInfo>,
   ));
 }
 
@@ -742,10 +1013,10 @@ return $default(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( DateTime fetchedAt,  DateTime anchorDate,  List<WidgetLesson> lessons,  List<WidgetPeriod> periods,  bool isHoliday,  String? holidayName)?  $default,{required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( DateTime fetchedAt,  DateTime anchorDate,  List<WidgetLesson> lessons,  List<WidgetPeriod> periods,  bool isHoliday,  String? holidayName,  List<WidgetDayInfo> days)?  $default,{required TResult orElse(),}) {final _that = this;
 switch (_that) {
 case _WidgetTimetableData() when $default != null:
-return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_that.isHoliday,_that.holidayName);case _:
+return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_that.isHoliday,_that.holidayName,_that.days);case _:
   return orElse();
 
 }
@@ -763,10 +1034,10 @@ return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_th
 /// }
 /// ```
 
-@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( DateTime fetchedAt,  DateTime anchorDate,  List<WidgetLesson> lessons,  List<WidgetPeriod> periods,  bool isHoliday,  String? holidayName)  $default,) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( DateTime fetchedAt,  DateTime anchorDate,  List<WidgetLesson> lessons,  List<WidgetPeriod> periods,  bool isHoliday,  String? holidayName,  List<WidgetDayInfo> days)  $default,) {final _that = this;
 switch (_that) {
 case _WidgetTimetableData():
-return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_that.isHoliday,_that.holidayName);case _:
+return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_that.isHoliday,_that.holidayName,_that.days);case _:
   throw StateError('Unexpected subclass');
 
 }
@@ -783,10 +1054,10 @@ return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_th
 /// }
 /// ```
 
-@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( DateTime fetchedAt,  DateTime anchorDate,  List<WidgetLesson> lessons,  List<WidgetPeriod> periods,  bool isHoliday,  String? holidayName)?  $default,) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( DateTime fetchedAt,  DateTime anchorDate,  List<WidgetLesson> lessons,  List<WidgetPeriod> periods,  bool isHoliday,  String? holidayName,  List<WidgetDayInfo> days)?  $default,) {final _that = this;
 switch (_that) {
 case _WidgetTimetableData() when $default != null:
-return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_that.isHoliday,_that.holidayName);case _:
+return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_that.isHoliday,_that.holidayName,_that.days);case _:
   return null;
 
 }
@@ -798,7 +1069,7 @@ return $default(_that.fetchedAt,_that.anchorDate,_that.lessons,_that.periods,_th
 @JsonSerializable()
 
 class _WidgetTimetableData implements WidgetTimetableData {
-  const _WidgetTimetableData({required this.fetchedAt, required this.anchorDate, required final  List<WidgetLesson> lessons, final  List<WidgetPeriod> periods = const <WidgetPeriod>[], this.isHoliday = false, this.holidayName}): _lessons = lessons,_periods = periods;
+  const _WidgetTimetableData({required this.fetchedAt, required this.anchorDate, required final  List<WidgetLesson> lessons, final  List<WidgetPeriod> periods = const <WidgetPeriod>[], this.isHoliday = false, this.holidayName, final  List<WidgetDayInfo> days = const <WidgetDayInfo>[]}): _lessons = lessons,_periods = periods,_days = days;
   factory _WidgetTimetableData.fromJson(Map<String, dynamic> json) => _$WidgetTimetableDataFromJson(json);
 
 @override final  DateTime fetchedAt;
@@ -822,6 +1093,15 @@ class _WidgetTimetableData implements WidgetTimetableData {
 
 @override@JsonKey() final  bool isHoliday;
 @override final  String? holidayName;
+/// Week payload only: one entry per day of the covered window.
+ final  List<WidgetDayInfo> _days;
+/// Week payload only: one entry per day of the covered window.
+@override@JsonKey() List<WidgetDayInfo> get days {
+  if (_days is EqualUnmodifiableListView) return _days;
+  // ignore: implicit_dynamic_type
+  return EqualUnmodifiableListView(_days);
+}
+
 
 /// Create a copy of WidgetTimetableData
 /// with the given fields replaced by the non-null parameter values.
@@ -836,16 +1116,16 @@ Map<String, dynamic> toJson() {
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is _WidgetTimetableData&&(identical(other.fetchedAt, fetchedAt) || other.fetchedAt == fetchedAt)&&(identical(other.anchorDate, anchorDate) || other.anchorDate == anchorDate)&&const DeepCollectionEquality().equals(other._lessons, _lessons)&&const DeepCollectionEquality().equals(other._periods, _periods)&&(identical(other.isHoliday, isHoliday) || other.isHoliday == isHoliday)&&(identical(other.holidayName, holidayName) || other.holidayName == holidayName));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is _WidgetTimetableData&&(identical(other.fetchedAt, fetchedAt) || other.fetchedAt == fetchedAt)&&(identical(other.anchorDate, anchorDate) || other.anchorDate == anchorDate)&&const DeepCollectionEquality().equals(other._lessons, _lessons)&&const DeepCollectionEquality().equals(other._periods, _periods)&&(identical(other.isHoliday, isHoliday) || other.isHoliday == isHoliday)&&(identical(other.holidayName, holidayName) || other.holidayName == holidayName)&&const DeepCollectionEquality().equals(other._days, _days));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,fetchedAt,anchorDate,const DeepCollectionEquality().hash(_lessons),const DeepCollectionEquality().hash(_periods),isHoliday,holidayName);
+int get hashCode => Object.hash(runtimeType,fetchedAt,anchorDate,const DeepCollectionEquality().hash(_lessons),const DeepCollectionEquality().hash(_periods),isHoliday,holidayName,const DeepCollectionEquality().hash(_days));
 
 @override
 String toString() {
-  return 'WidgetTimetableData(fetchedAt: $fetchedAt, anchorDate: $anchorDate, lessons: $lessons, periods: $periods, isHoliday: $isHoliday, holidayName: $holidayName)';
+  return 'WidgetTimetableData(fetchedAt: $fetchedAt, anchorDate: $anchorDate, lessons: $lessons, periods: $periods, isHoliday: $isHoliday, holidayName: $holidayName, days: $days)';
 }
 
 
@@ -856,7 +1136,7 @@ abstract mixin class _$WidgetTimetableDataCopyWith<$Res> implements $WidgetTimet
   factory _$WidgetTimetableDataCopyWith(_WidgetTimetableData value, $Res Function(_WidgetTimetableData) _then) = __$WidgetTimetableDataCopyWithImpl;
 @override @useResult
 $Res call({
- DateTime fetchedAt, DateTime anchorDate, List<WidgetLesson> lessons, List<WidgetPeriod> periods, bool isHoliday, String? holidayName
+ DateTime fetchedAt, DateTime anchorDate, List<WidgetLesson> lessons, List<WidgetPeriod> periods, bool isHoliday, String? holidayName, List<WidgetDayInfo> days
 });
 
 
@@ -873,7 +1153,7 @@ class __$WidgetTimetableDataCopyWithImpl<$Res>
 
 /// Create a copy of WidgetTimetableData
 /// with the given fields replaced by the non-null parameter values.
-@override @pragma('vm:prefer-inline') $Res call({Object? fetchedAt = null,Object? anchorDate = null,Object? lessons = null,Object? periods = null,Object? isHoliday = null,Object? holidayName = freezed,}) {
+@override @pragma('vm:prefer-inline') $Res call({Object? fetchedAt = null,Object? anchorDate = null,Object? lessons = null,Object? periods = null,Object? isHoliday = null,Object? holidayName = freezed,Object? days = null,}) {
   return _then(_WidgetTimetableData(
 fetchedAt: null == fetchedAt ? _self.fetchedAt : fetchedAt // ignore: cast_nullable_to_non_nullable
 as DateTime,anchorDate: null == anchorDate ? _self.anchorDate : anchorDate // ignore: cast_nullable_to_non_nullable
@@ -881,7 +1161,8 @@ as DateTime,lessons: null == lessons ? _self._lessons : lessons // ignore: cast_
 as List<WidgetLesson>,periods: null == periods ? _self._periods : periods // ignore: cast_nullable_to_non_nullable
 as List<WidgetPeriod>,isHoliday: null == isHoliday ? _self.isHoliday : isHoliday // ignore: cast_nullable_to_non_nullable
 as bool,holidayName: freezed == holidayName ? _self.holidayName : holidayName // ignore: cast_nullable_to_non_nullable
-as String?,
+as String?,days: null == days ? _self._days : days // ignore: cast_nullable_to_non_nullable
+as List<WidgetDayInfo>,
   ));
 }
 

lib/widget_data/widget_data.g.dart

@@ -63,6 +63,20 @@ Map<String, dynamic> _$WidgetPeriodToJson(_WidgetPeriod instance) =>
       'virtualEndMinutes': instance.virtualEndMinutes,
     };
 
+_WidgetDayInfo _$WidgetDayInfoFromJson(Map<String, dynamic> json) =>
+    _WidgetDayInfo(
+      date: DateTime.parse(json['date'] as String),
+      isHoliday: json['isHoliday'] as bool? ?? false,
+      holidayName: json['holidayName'] as String?,
+    );
+
+Map<String, dynamic> _$WidgetDayInfoToJson(_WidgetDayInfo instance) =>
+    <String, dynamic>{
+      'date': instance.date.toIso8601String(),
+      'isHoliday': instance.isHoliday,
+      'holidayName': instance.holidayName,
+    };
+
 _WidgetTimetableData _$WidgetTimetableDataFromJson(Map<String, dynamic> json) =>
     _WidgetTimetableData(
       fetchedAt: DateTime.parse(json['fetchedAt'] as String),
@@ -77,6 +91,11 @@ _WidgetTimetableData _$WidgetTimetableDataFromJson(Map<String, dynamic> json) =>
           const <WidgetPeriod>[],
       isHoliday: json['isHoliday'] as bool? ?? false,
       holidayName: json['holidayName'] as String?,
+      days:
+          (json['days'] as List<dynamic>?)
+              ?.map((e) => WidgetDayInfo.fromJson(e as Map<String, dynamic>))
+              .toList() ??
+          const <WidgetDayInfo>[],
     );
 
 Map<String, dynamic> _$WidgetTimetableDataToJson(
@@ -88,4 +107,5 @@ Map<String, dynamic> _$WidgetTimetableDataToJson(
   'periods': instance.periods,
   'isHoliday': instance.isHoliday,
   'holidayName': instance.holidayName,
+  'days': instance.days,
 };

lib/widget_data/widget_data_mapper.dart

@@ -9,6 +9,7 @@ import '../api/marianumconnect/queries/timetable_get_timegrid/timetable_get_time
 import '../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
 import '../api/mhsl/custom_timetable_event/custom_timetable_event.dart';
 import '../api/mhsl/custom_timetable_event/get/get_custom_timetable_event_response.dart';
+import '../extensions/date_time.dart';
 import '../view/pages/timetable/data/lesson_merger.dart';
 import '../view/pages/timetable/data/lesson_period_schedule.dart';
 import '../view/pages/timetable/data/lesson_status.dart';
@@ -34,12 +35,20 @@ class WidgetDataMapper {
     return candidate;
   }
 
-  static DateTime resolveWeekAnchor(DateTime now) {
-    final anchor = resolveDayAnchor(now);
-    final monday = anchor.subtract(Duration(days: anchor.weekday - 1));
+  static DateTime resolveWeekAnchor(DateTime now) =>
+      startOfCalendarWeek(resolveDayAnchor(now));
+
+  /// Monday of the calendar week containing [reference] — no roll-forward,
+  /// unlike [resolveWeekAnchor]. Start of the week payload's 14-day window.
+  static DateTime startOfCalendarWeek(DateTime reference) {
+    final monday = reference.subtract(Duration(days: reference.weekday - 1));
     return DateTime(monday.year, monday.month, monday.day);
   }
 
+  /// Days covered by the week payload: current calendar week + the next, so
+  /// native renderers can roll the view forward without fresh data.
+  static const int weekWindowDays = 14;
+
   static WidgetTimetableData buildDayData({
     required DateTime now,
     required Iterable<McTimetableEntry> lessons,
@@ -83,10 +92,14 @@ class WidgetDataMapper {
     bool connectDoubleLessons = true,
   }) {
     final anchor = resolveWeekAnchor(now);
-    final endExclusive = anchor.add(const Duration(days: 5));
+    // The window is anchored at the *current* calendar week, not the
+    // (possibly rolled-forward) week anchor: on Friday evening the payload
+    // must still contain today for renderers that derive day slices.
+    final windowStart = startOfCalendarWeek(now);
+    final endExclusive = windowStart.add(const Duration(days: weekWindowDays));
     final weekLessons = lessons.where((l) {
       final dt = l.startDateTime;
-      return !dt.isBefore(anchor) && dt.isBefore(endExclusive);
+      return !dt.isBefore(windowStart) && dt.isBefore(endExclusive);
     }).toList();
     // Per-day merge: otherwise a 4th-period lesson on Mon would collapse with
     // a 1st-period lesson on Tue if subject/teacher match.
@@ -95,13 +108,38 @@ class WidgetDataMapper {
         : weekLessons;
     final mapped = <WidgetLesson>[
       ...source.map((l) => _mapLesson(l, now, subjects, rooms)),
-      ..._expandCustomEvents(customEvents, anchor, endExclusive),
+      ..._expandCustomEvents(customEvents, windowStart, endExclusive),
     ]..sort((a, b) => a.start.compareTo(b.start));
+    final days = [
+      for (var i = 0; i < weekWindowDays; i++)
+        _dayInfo(windowStart.addDays(i), holidays),
+    ];
+    // The anchor always lies inside the window; the orElse only guards the
+    // impossible.
+    final anchorInfo = days.firstWhere(
+      (d) => d.date == anchor,
+      orElse: () => _dayInfo(anchor, holidays),
+    );
     return WidgetTimetableData(
       fetchedAt: now,
       anchorDate: anchor,
       lessons: _resolveCollisions(mapped),
       periods: _resolvePeriods(timegrid),
+      isHoliday: anchorInfo.isHoliday,
+      holidayName: anchorInfo.holidayName,
+      days: days,
+    );
+  }
+
+  static WidgetDayInfo _dayInfo(
+    DateTime day,
+    TimetableGetHolidaysResponse? holidays,
+  ) {
+    final holiday = _findHoliday(day, holidays);
+    return WidgetDayInfo(
+      date: day,
+      isHoliday: holiday != null,
+      holidayName: holiday?.longName,
     );
   }
 

lib/widget_data/widget_sync.dart

@@ -12,14 +12,18 @@ class WidgetSync {
   static const String iosAppGroupId =
       'group.eu.mhsl.marianum.mobile.client.widget';
 
-  static const String iosWidgetKind = 'TimetableWidget';
+  // Must match the WidgetKit `kind` strings declared in
+  // TimetableWidgetExtension.swift — a mismatch makes reloadTimelines a no-op.
+  static const String iosDayWidgetKind = 'TimetableDayWidget';
+  static const String iosWeekWidgetKind = 'TimetableWeekWidget';
   static const String androidDayProvider = 'TimetableDayWidget';
   static const String androidWeekProvider = 'TimetableWeekWidget';
 
-  // `_v1` suffix lets a future schema change invalidate stale snapshots
-  // by bumping the key instead of risking a parse crash.
+  // Version suffix lets a schema change invalidate stale snapshots by
+  // bumping the key instead of risking a parse crash.
   static const String dayDataKey = 'widget_data_day_v1';
-  static const String weekDataKey = 'widget_data_week_v1';
+  // v2: 14-day window + per-day `days` holiday info.
+  static const String weekDataKey = 'widget_data_week_v2';
   static const String fetchedAtKey = 'widget_data_fetched_at_v1';
   static const String loggedInKey = 'widget_data_logged_in_v1';
   // Mirrored into widget storage so the background isolate can read it
@@ -90,6 +94,12 @@ class WidgetSync {
     return HomeWidget.getWidgetData<String>(marianumConnectBaseUrlKey);
   }
 
+  static Future<DateTime?> getFetchedAt() async {
+    await ensureInitialized();
+    final raw = await HomeWidget.getWidgetData<String>(fetchedAtKey);
+    return raw == null ? null : DateTime.tryParse(raw);
+  }
+
   static Future<void> clear() async {
     await ensureInitialized();
     await HomeWidget.saveWidgetData<String>(dayDataKey, null);
@@ -103,11 +113,11 @@ class WidgetSync {
     try {
       await HomeWidget.updateWidget(
         androidName: androidDayProvider,
-        iOSName: iosWidgetKind,
+        iOSName: iosDayWidgetKind,
       );
       await HomeWidget.updateWidget(
         androidName: androidWeekProvider,
-        iOSName: iosWidgetKind,
+        iOSName: iosWeekWidgetKind,
       );
     } on Exception catch (e) {
       log('WidgetSync.triggerUpdate failed: $e');

test/background/widget_background_task_test.dart

@@ -0,0 +1,67 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:marianum_mobile/background/widget_background_task.dart';
+
+void main() {
+  final now = DateTime(2026, 8, 6, 12, 0);
+
+  group('shouldSkipRefresh', () {
+    test('skips when the snapshot is younger than the debounce window', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(const Duration(minutes: 5)),
+          now: now,
+          force: false,
+        ),
+        isTrue,
+      );
+    });
+
+    test('refreshes when the snapshot is older than the debounce window', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(const Duration(minutes: 15)),
+          now: now,
+          force: false,
+        ),
+        isFalse,
+      );
+    });
+
+    test('refreshes exactly at the debounce boundary', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(WidgetBackgroundTask.refreshDebounce),
+          now: now,
+          force: false,
+        ),
+        isFalse,
+      );
+    });
+
+    test('force bypasses a fresh snapshot', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(const Duration(minutes: 1)),
+          now: now,
+          force: true,
+        ),
+        isFalse,
+      );
+    });
+
+    test('refreshes when no snapshot exists yet', () {
+      expect(shouldSkipRefresh(fetchedAt: null, now: now, force: false), isFalse);
+    });
+
+    test('refreshes when fetchedAt lies in the future (clock change)', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.add(const Duration(minutes: 5)),
+          now: now,
+          force: false,
+        ),
+        isFalse,
+      );
+    });
+  });
+}

test/push/push_message_handler_test.dart

@@ -17,6 +17,47 @@ void main() {
       );
     });
 
+    test('widget refresh push identified by source + type', () {
+      expect(
+        classifyPush({'source': 'connect', 'type': 'widget-refresh'}),
+        PushKind.widgetRefresh,
+      );
+    });
+
+    test('widget refresh push with reason still classifies', () {
+      expect(
+        classifyPush({
+          'source': 'connect',
+          'type': 'widget-refresh',
+          'reason': 'morning',
+        }),
+        PushKind.widgetRefresh,
+      );
+    });
+
+    test('connect push with unrelated type stays connect', () {
+      expect(
+        classifyPush({'source': 'connect', 'type': 'newsletter', 'title': 'Hi'}),
+        PushKind.connect,
+      );
+    });
+
+    test('nextcloud fields take precedence over widget-refresh type', () {
+      expect(
+        classifyPush({
+          'subject': 'enc',
+          'signature': 'sig',
+          'source': 'connect',
+          'type': 'widget-refresh',
+        }),
+        PushKind.nextcloud,
+      );
+    });
+
+    test('widget-refresh type without connect source is unknown', () {
+      expect(classifyPush({'type': 'widget-refresh'}), PushKind.unknown);
+    });
+
     test('subject without signature is not a nextcloud push', () {
       expect(classifyPush({'subject': 'enc'}), PushKind.unknown);
     });

test/widget_data/widget_data_mapper_test.dart

@@ -345,15 +345,32 @@ void main() {
     });
   });
 
+  group('startOfCalendarWeek', () {
+    test('Tuesday maps to its own Monday', () {
+      expect(
+        WidgetDataMapper.startOfCalendarWeek(DateTime(2026, 5, 5, 10)),
+        DateTime(2026, 5, 4),
+      );
+    });
+
+    test('Sunday stays in the current week (no roll-forward)', () {
+      expect(
+        WidgetDataMapper.startOfCalendarWeek(DateTime(2026, 5, 10, 22)),
+        DateTime(2026, 5, 4),
+      );
+    });
+  });
+
   group('buildWeekData', () {
     final now = DateTime(2026, 5, 5, 10); // Tuesday
 
-    test('contains lessons across the school week', () {
+    test('covers the 14-day window including next week', () {
       final lessons = [
         _lesson(date: DateTime(2026, 5, 4), startHhmm: 800, endHhmm: 845, subjectName: 'MO'),
         _lesson(date: DateTime(2026, 5, 6), startHhmm: 800, endHhmm: 845, subjectName: 'WE'),
         _lesson(date: DateTime(2026, 5, 8), startHhmm: 800, endHhmm: 845, subjectName: 'FR'),
         _lesson(date: DateTime(2026, 5, 11), startHhmm: 800, endHhmm: 845, subjectName: 'NEXT'),
+        _lesson(date: DateTime(2026, 5, 18), startHhmm: 800, endHhmm: 845, subjectName: 'FAR'),
       ];
       final data = WidgetDataMapper.buildWeekData(
         now: now,
@@ -365,8 +382,82 @@ void main() {
       expect(data.anchorDate, DateTime(2026, 5, 4));
       expect(
         data.lessons.map((l) => l.subjectShort).toList(),
-        ['MO', 'WE', 'FR'],
+        ['MO', 'WE', 'FR', 'NEXT'],
       );
     });
+
+    test('window stays on the current week when the anchor rolls forward', () {
+      // Friday evening: day/week anchors jump to next Monday, but the window
+      // still starts at the current week's Monday so today stays available.
+      final fridayEvening = DateTime(2026, 5, 8, 18);
+      final lessons = [
+        _lesson(date: DateTime(2026, 5, 8), startHhmm: 800, endHhmm: 845, subjectName: 'FR'),
+        _lesson(date: DateTime(2026, 5, 11), startHhmm: 800, endHhmm: 845, subjectName: 'NEXT'),
+      ];
+      final data = WidgetDataMapper.buildWeekData(
+        now: fridayEvening,
+        lessons: lessons,
+        subjects: null,
+        rooms: null,
+        holidays: null,
+      );
+      expect(data.anchorDate, DateTime(2026, 5, 11));
+      expect(
+        data.lessons.map((l) => l.subjectShort).toList(),
+        ['FR', 'NEXT'],
+      );
+    });
+
+    test('carries per-day holiday info in days', () {
+      final holidays = TimetableGetHolidaysResponse(
+        result: [
+          McHoliday(
+            shortName: 'Pfingsten',
+            longName: 'Pfingstferien',
+            startDate: DateTime(2026, 5, 14),
+            endDate: DateTime(2026, 5, 15),
+          ),
+        ],
+      );
+      final data = WidgetDataMapper.buildWeekData(
+        now: now,
+        lessons: const [],
+        subjects: null,
+        rooms: null,
+        holidays: holidays,
+      );
+      expect(data.days, hasLength(WidgetDataMapper.weekWindowDays));
+      expect(data.days.first.date, DateTime(2026, 5, 4));
+      expect(data.days.last.date, DateTime(2026, 5, 17));
+      final holidayDays =
+          data.days.where((d) => d.isHoliday).map((d) => d.date).toList();
+      expect(holidayDays, [DateTime(2026, 5, 14), DateTime(2026, 5, 15)]);
+      expect(
+        data.days.firstWhere((d) => d.isHoliday).holidayName,
+        'Pfingstferien',
+      );
+    });
+
+    test('sets top-level holiday flags for the anchor day', () {
+      final holidays = TimetableGetHolidaysResponse(
+        result: [
+          McHoliday(
+            shortName: 'Oster',
+            longName: 'Osterferien',
+            startDate: DateTime(2026, 5, 4),
+            endDate: DateTime(2026, 5, 8),
+          ),
+        ],
+      );
+      final data = WidgetDataMapper.buildWeekData(
+        now: now,
+        lessons: const [],
+        subjects: null,
+        rooms: null,
+        holidays: holidays,
+      );
+      expect(data.isHoliday, isTrue);
+      expect(data.holidayName, 'Osterferien');
+    });
   });
 }