hondavert-dev/lib/core/providers/sensor_provider.dart
HVBT Dev 6a80d8fc1f v1.2.0 — Phase 2: Riverpod providers wired up
- settings_provider: AppSettings (ecuType, pollingInterval) StateNotifier
- bt_provider: BtNotifier (disconnected/connecting/connected/error states),
  btServiceProvider singleton, pairedDevicesProvider FutureProvider,
  internal frameStream piped through StreamController
- sensor_provider: sensorStateProvider StreamProvider (auto S300/KPro),
  latestSensorProvider convenience Provider
- theme_provider: AppThemeVariant (red/green × dark/light) StateNotifier
- main.dart: fully Riverpod — ProviderScope, ConsumerWidget throughout,
  no setState for BT state, providers own all lifecycle
2026-04-13 20:13:32 +05:30

30 lines
1.0 KiB
Dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../bluetooth/bt_poller.dart';
import '../protocol/kpro_parser.dart';
import '../protocol/s300_parser.dart';
import '../protocol/sensor_state.dart';
import 'bt_provider.dart';
import 'settings_provider.dart';
/// Emits a parsed [SensorState] for every valid frame received from the ECU.
/// Automatically picks S300 or KPro parser based on [settingsProvider].
final sensorStateProvider = StreamProvider<SensorState>((ref) {
final ecuType = ref.watch(settingsProvider).ecuType;
final btNotifier = ref.watch(btProvider.notifier);
return btNotifier.frameStream.map((frame) {
if (ecuType == EcuType.s300) return parseS300(frame);
return parseKPro(frame);
});
});
/// Last successfully parsed sensor state (never null after first frame).
/// Falls back to SensorState.zero() before any data arrives.
final latestSensorProvider = Provider<SensorState>((ref) {
return ref
.watch(sensorStateProvider)
.whenData((s) => s)
.value ?? SensorState.zero();
});