Setting to disable memories notifications

mobile/lib/services/memories_cache_service.dart

@@ -92,6 +92,17 @@ class MemoriesCacheService {
     Bus.instance.fire(MemoriesSettingChanged());
   }
 
+  Future<void> toggleOnThisDayNotifications() async {
+    final oldValue = localSettings.isOnThisDayNotificationsEnabled;
+    await localSettings.setOnThisDayNotificationsEnabled(!oldValue);
+    _logger.info("Turning onThisDayNotifications ${oldValue ? "off" : "on"}");
+    if (oldValue) {
+      await _clearAllScheduledOnThisDayNotifications();
+    } else {
+      queueUpdateCache();
+    }
+  }
+
   bool get enableSmartMemories =>
       flagService.hasGrantedMLConsent &&
       localSettings.isMLLocalIndexingEnabled &&
@@ -238,11 +249,20 @@ class MemoriesCacheService {
     return newCache;
   }
 
+  Future<void> _clearAllScheduledOnThisDayNotifications() async {
+    await NotificationService.instance
+        .clearAllScheduledNotifications(containingPayload: "onThisDay");
+  }
+
   Future<void> _scheduleOnThisDayNotifications(
     List<SmartMemory> allMemories,
   ) async {
-    await NotificationService.instance
-        .clearAllScheduledNotifications(containingPayload: "onThisDay");
+    if (!localSettings.isOnThisDayNotificationsEnabled) {
+      _logger
+          .info("On this day notifications are disabled, skipping scheduling");
+      return;
+    }
+    await _clearAllScheduledOnThisDayNotifications();
     final scheduledDates = <DateTime>{};
     for (final memory in allMemories) {
       if (memory.type != MemoryType.onThisDay) {

mobile/lib/ui/settings/notification_settings_screen.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import "package:photos/generated/l10n.dart";
+import "package:photos/service_locator.dart";
 import "package:photos/services/notification_service.dart";
 import 'package:photos/theme/ente_theme.dart';
 import 'package:photos/ui/components/buttons/icon_button_widget.dart';
@@ -9,6 +10,7 @@ import 'package:photos/ui/components/menu_section_description_widget.dart';
 import 'package:photos/ui/components/title_bar_title_widget.dart';
 import 'package:photos/ui/components/title_bar_widget.dart';
 import 'package:photos/ui/components/toggle_switch_widget.dart';
+import "package:photos/ui/settings/common_settings.dart";
 
 class NotificationSettingsScreen extends StatelessWidget {
   const NotificationSettingsScreen({super.key});
@@ -77,6 +79,33 @@ class NotificationSettingsScreen extends StatelessWidget {
                                   .of(context)
                                   .sharedPhotoNotificationsExplanation,
                             ),
+                            sectionOptionSpacing,
+                            MenuItemWidget(
+                              captionedTextWidget: CaptionedTextWidget(
+                                title: S.of(context).onThisDayMemories,
+                              ),
+                              menuItemColor: colorScheme.fillFaint,
+                              trailingWidget: ToggleSwitchWidget(
+                                value: () =>
+                                    NotificationService.instance
+                                        .hasGrantedPermissions() &&
+                                    localSettings
+                                        .isOnThisDayNotificationsEnabled,
+                                onChanged: () async {
+                                  await NotificationService.instance
+                                      .requestPermissions();
+                                  await memoriesCacheService
+                                      .toggleOnThisDayNotifications();
+                                },
+                              ),
+                              singleBorderRadius: 8,
+                              alignCaptionedTextToLeft: true,
+                              isGestureDetectorDisabled: true,
+                            ),
+                            const MenuSectionDescriptionWidget(
+                              content:
+                                  "Receive reminders about memories from this day in previous years.",
+                            ),
                           ],
                         ),
                       ],

mobile/lib/utils/local_settings.dart

@@ -26,6 +26,8 @@ class LocalSettings {
   static const kRateUsShownCount = "rate_us_shown_count";
   static const kEnableMultiplePart = "ls.enable_multiple_part";
   static const kCuratedMemoriesEnabled = "ls.curated_memories_enabled";
+  static const kOnThisDayNotificationsEnabled =
+      "ls.on_this_day_notifications_enabled";
   static const kRateUsPromptThreshold = 2;
   static const shouldLoopVideoKey = "video.should_loop";
   static const onGuestViewKey = "on_guest_view";
@@ -119,6 +121,14 @@ class LocalSettings {
     return value;
   }
 
+  bool get isOnThisDayNotificationsEnabled =>
+      _prefs.getBool(kOnThisDayNotificationsEnabled) ?? true;
+
+  Future<bool> setOnThisDayNotificationsEnabled(bool value) async {
+    await _prefs.setBool(kOnThisDayNotificationsEnabled, value);
+    return value;
+  }
+
   bool get userEnabledMultiplePart =>
       _prefs.getBool(kEnableMultiplePart) ?? false;