---

## 6. 日历提醒未使用自定义提示音

**文件**: `apps/lib/core/notification/services/reminder_scheduler_service.dart`

**问题描述**:
已添加 `apps/assets/reminder_sound/1.WAV` 自定义提示音文件，但代码中未使用，仍使用系统默认铃声：

```dart
// 当前代码
const androidDetails = AndroidNotificationDetails(
  _channelId,
  _channelName,
  // ...
  playSound: true,           // 使用系统默认
  // 没有 customSound 配置
);
```

**根因**:
添加了资源文件但未在通知配置中引用。

**建议修复**:
1. 在 `pubspec.yaml` 添加 assets 路径：
```yaml
flutter:
  assets:
    - assets/reminder_sound/
```

2. 在通知配置中引用自定义铃声：
```dart
// Android
final androidDetails = AndroidNotificationDetails(
  _channelId,
  _channelName,
  playSound: true,
  sound: RawResourceAndroidNotificationSound('reminder_sound/1'),
  // ...
);

// iOS
const iosDetails = DarwinNotificationDetails(
  presentSound: true,
  sound: 'reminder_sound_1.wav',
  // ...
);
```

---

## 7. 通知调度缺少变化检测（重复重建）

**文件**: `apps/lib/core/notification/services/reminder_scheduler_service.dart`

**问题描述**:
每次获取日历事件都会调用 `upsertEventReminders`，内部执行 `cancelEventReminders` + 重建，即使事件没变化：

```dart
Future<void> upsertEventReminders(event) async {
  await cancelEventReminders(event.eventId);  // 总是先取消
  for (alarm in buildAlarmsForEvent(event)) {
    await _scheduleAlarm(alarm);  // 总是重建
  }
}
```

**影响**:
- 通知 ID 变化导致系统重新调度，浪费资源
- 用户频繁访问日历时产生不必要的操作

**建议修复**:
```dart
Future<void> upsertEventReminders(event) async {
  final existing = await _getScheduledAlarm(event.eventId);
  if (existing != null && _isSameAlarm(existing, event)) {
    return;  // 跳过，没变化
  }
  await cancelEventReminders(event.eventId);
  for (alarm in buildAlarmsForEvent(event)) {
    await _scheduleAlarm(alarm);
  }
}
```




## 相关文件

- `apps/lib/app/app.dart`
- `apps/lib/data/cache/cache_scope.dart`
- `apps/lib/data/cache/cache_store.dart`
- `apps/lib/data/cache/cached_repository.dart`
- `apps/lib/core/inbox/inbox_sync_store.dart`
- `apps/lib/features/chat/presentation/bloc/chat_bloc.dart`
- `apps/lib/app/services/app_prewarm_orchestrator.dart`
- `apps/lib/core/notification/services/reminder_scheduler_service.dart`
- `apps/lib/core/notification/services/reminder_permission_service.dart`
- `apps/lib/core/notification/services/reminder_reconcile_service.dart`
- `apps/assets/reminder_sound/`