Implement audio settings

Changes:
- Rework KUKSA.val "VAL" gRPC API implementation to separate it
  from the vehicle model + notifier, and more easily allow using
  it from other notifiers.
- Move volume handling from the vehicle model + notifier to the
  audio set for clarity.
- Wire up the new VSS audio signals in the audio notifier. The
  "rearFront" variable naming has been changed to "fade" in
  several places to match expected terminology.
- Add a balance slider to the audio settings page.
- Change the min/max labels on the fade slider to be Text instead
  of Icon's since we do not have the equivalent to use with the
  balance slider, and text seems like it'd be what you would want
  for any potential future internationalization.
- Rework configuration file to be usable from anywhere via a
  RiverPod Provider instead of tied to the vehicle notifier code,
  and shifted the background and hybrid animation flags to be handled
  with it.  This change removes the built-in asset with defaults in
  favor of maintaining the defaults for the ICS environment in the
  AppConfig and KuksaConfig classes, with a goal of avoiding the need
  for using async methods in the config provider.
- Change some notifiers from using StateNotifier to the RiverPod
  2.0 Notifier class for improved flexibility.  The other notifiers
  will be updated in future work.
- Added select's to several ref.watches in the new hybrid animation
  code to avoid unnecessary repaints.
- Fix several spelling issues in method and parameter names
  across the codebase.

Bug-AGL: SPEC-5001

Change-Id: Iefae417fa870405d659303497d96e519e6b6d1de
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

6 files changed, 458 insertions, 263 deletions

diff --git a/lib/data/data_providers/app_config_provider.dart b/lib/data/data_providers/app_config_provider.dart
new file mode 100644
index 0000000..7e0ddc6
--- /dev/null
+++ b/lib/data/data_providers/app_config_provider.dart
@@ -0,0 +1,162 @@
+import 'dart:io';
+import 'package:flutter/foundation.dart';
+import 'package:flutter_ics_homescreen/core/constants/constants.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:yaml/yaml.dart';
+
+class KuksaConfig {
+  final String hostname;
+  final int port;
+  final String authorization;
+  final bool use_tls;
+  final List<int> ca_certificate;
+  final String tls_server_name;
+
+  static String defaultHostname = 'localhost';
+  static int defaultPort = 55555;
+  static String defaultCaCertPath = '/etc/kuksa-val/CA.pem';
+
+  KuksaConfig(
+      {required this.hostname,
+      required this.port,
+      required this.authorization,
+      required this.use_tls,
+      required this.ca_certificate,
+      required this.tls_server_name});
+
+  static KuksaConfig defaultConfig() {
+    return KuksaConfig(
+        hostname: KuksaConfig.defaultHostname,
+        port: KuksaConfig.defaultPort,
+        authorization: "",
+        use_tls: false,
+        ca_certificate: [],
+        tls_server_name: "");
+  }
+}
+
+class AppConfig {
+  final bool disableBkgAnimation;
+  final bool randomHybridAnimation;
+  final KuksaConfig kuksaConfig;
+
+  static String configFilePath = '/etc/xdg/AGL/ics-homescreen.yaml';
+
+  AppConfig({required this.disableBkgAnimation, required this.randomHybridAnimation, required this.kuksaConfig});
+
+  static KuksaConfig parseKuksaConfig(YamlMap kuksaMap) {
+    try {
+      String hostname = KuksaConfig.defaultHostname;
+      if (kuksaMap.containsKey('hostname')) {
+        hostname = kuksaMap['hostname'];
+      }
+
+      int port = KuksaConfig.defaultPort;
+      if (kuksaMap.containsKey('port')) {
+        port = kuksaMap['port'];
+      }
+
+      String token = "";
+      if (kuksaMap.containsKey('authorization')) {
+        String s = kuksaMap['authorization'];
+        if (s.isNotEmpty) {
+          if (s.startsWith("/")) {
+            debugPrint("Reading authorization token $s");
+            try {
+              token = File(s).readAsStringSync();
+            } on Exception catch (_) {
+              print("ERROR: Could not read authorization token file $token");
+              token = "";
+            }
+          } else {
+            token = s;
+          }
+        }
+      }
+      //debugPrint("authorization = $token");
+
+      bool use_tls = false;
+      if (kuksaMap.containsKey('use-tls')) {
+        var value = kuksaMap['use-tls'];
+        if (value is bool) use_tls = value;
+      }
+      //debugPrint("Use TLS = $use_tls");
+
+      List<int> ca_cert = [];
+      String ca_path = KuksaConfig.defaultCaCertPath;
+      if (kuksaMap.containsKey('ca-certificate')) {
+        ca_path = kuksaMap['ca-certificate'];
+      }
+      try {
+        ca_cert = File(ca_path).readAsBytesSync();
+      } on Exception catch (_) {
+        print("ERROR: Could not read CA certificate file $ca_path");
+        ca_cert = [];
+      }
+      //debugPrint("CA cert = $ca_cert");
+
+      String tls_server_name = "";
+      if (kuksaMap.containsKey('tls-server-name')) {
+        tls_server_name = kuksaMap['tls_server_name'];
+      }
+
+      return KuksaConfig(
+          hostname: hostname,
+          port: port,
+          authorization: token,
+          use_tls: use_tls,
+          ca_certificate: ca_cert,
+          tls_server_name: tls_server_name);
+    } on Exception catch (_) {
+      return KuksaConfig.defaultConfig();
+    }
+  }
+}
+
+final appConfigProvider = Provider((ref) {
+  final configFile = File(AppConfig.configFilePath);
+  try {
+    print("Reading configuration ${AppConfig.configFilePath}");
+    String content = configFile.readAsStringSync();
+    final dynamic yamlMap = loadYaml(content);
+
+    KuksaConfig kuksaConfig;
+    if (yamlMap.containsKey('kuksa')) {
+      kuksaConfig = AppConfig.parseKuksaConfig(yamlMap['kuksa']);
+    } else {
+      kuksaConfig = KuksaConfig(
+          hostname: KuksaConfig.defaultHostname,
+          port: KuksaConfig.defaultPort,
+          authorization: "",
+          use_tls: false,
+          ca_certificate: [],
+          tls_server_name: "");
+    }
+
+    bool disableBkgAnimation = disableBkgAnimationDefault;
+    if (yamlMap.containsKey('disable-bg-animation')) {
+      var value = yamlMap['disable-bg-animation'];
+      if (value is bool) {
+        disableBkgAnimation = value;
+      }
+    }
+
+    bool randomHybridAnimation = randomHybridAnimationDefault;
+    if (yamlMap.containsKey('random-hybrid-animation')) {
+      var value = yamlMap['random-hybrid-animation'];
+      if (value is bool) {
+        randomHybridAnimation = value;
+      }
+    }
+
+    return AppConfig(
+        disableBkgAnimation: disableBkgAnimation,
+        randomHybridAnimation: randomHybridAnimation,
+        kuksaConfig: kuksaConfig);
+  } on Exception catch (_) {
+    return AppConfig(
+        disableBkgAnimation: false,
+        randomHybridAnimation: false,
+        kuksaConfig: KuksaConfig.defaultConfig());
+  }
+});
diff --git a/lib/data/data_providers/app_provider.dart b/lib/data/data_providers/app_provider.dart
index fb0a447..cfda370 100644
--- a/lib/data/data_providers/app_provider.dart
+++ b/lib/data/data_providers/app_provider.dart
@@ -4,6 +4,7 @@ import 'package:flutter_ics_homescreen/data/data_providers/time_notifier.dart';
 import 'package:flutter_ics_homescreen/data/data_providers/units_notifier.dart';
 import 'package:flutter_ics_homescreen/data/data_providers/audio_notifier.dart';
 import 'package:flutter_ics_homescreen/data/data_providers/users_notifier.dart';
+import 'package:flutter_ics_homescreen/data/data_providers/val_client.dart';
 import 'package:flutter_ics_homescreen/export.dart';
 
 import '../models/users.dart';
@@ -36,9 +37,15 @@ enum AppState {
 }
 
 final appProvider = StateProvider<AppState>((ref) => AppState.splash);
-final vehicleProvider = StateNotifierProvider<VehicleNotifier, Vehicle>((ref) {
-  return VehicleNotifier(const Vehicle.initial());
+
+final valClientProvider = Provider((ref) {
+  KuksaConfig config = ref.watch(appConfigProvider).kuksaConfig;
+  return ValClient(config: config, ref: ref);
 });
+
+final vehicleProvider =
+    NotifierProvider<VehicleNotifier, Vehicle>(VehicleNotifier.new);
+
 final signalsProvider = StateNotifierProvider<SignalNotifier, Signals>((ref) {
   return SignalNotifier(const Signals.initial());
 });
@@ -46,9 +53,9 @@ final signalsProvider = StateNotifierProvider<SignalNotifier, Signals>((ref) {
 final unitStateProvider = StateNotifierProvider<UnitsNotifier, Units>((ref) {
   return UnitsNotifier(const Units.initial());
 });
-final audioStateProvider = StateNotifierProvider<AudioNotifier, Audio>((ref) {
-  return AudioNotifier(const Audio.initial());
-});
+
+final audioStateProvider =
+    NotifierProvider<AudioNotifier, Audio>(AudioNotifier.new);
 
 final usersProvider = StateNotifierProvider<UsersNotifier, Users>((ref) {
   return UsersNotifier(Users.initial());
diff --git a/lib/data/data_providers/audio_notifier.dart b/lib/data/data_providers/audio_notifier.dart
index 1f8c1a9..32ab409 100644
--- a/lib/data/data_providers/audio_notifier.dart
+++ b/lib/data/data_providers/audio_notifier.dart
@@ -1,22 +1,131 @@
 import 'package:flutter_ics_homescreen/export.dart';
+import 'package:protos/protos.dart';
 
-class AudioNotifier extends StateNotifier<Audio> {
-  AudioNotifier(super.state);
+class AudioNotifier extends Notifier<Audio> {
+  @override
+  Audio build() {
+    return Audio.initial();
+  }
 
   void resetToDefaults() {
-    state = state.copyWith(treble: 5.0, bass: 5.0, rearFront: 5.0);
+    state = state.copyWith(balance: 5.0, fade: 5.0, treble: 5.0, bass: 5.0);
+    var valClient = ref.read(valClientProvider);
+    int value = (state.balance * 20).toInt() - 100;
+    valClient.setInt32(
+      VSSPath.vehicleMediaBalance,
+      value,
+      true,
+    );
+    value = (state.fade * 20).toInt() - 100;
+    valClient.setInt32(
+      VSSPath.vehicleMediaFade,
+      value,
+      true,
+    );
+    value = (state.treble * 20).toInt() - 100;
+    valClient.setInt32(
+      VSSPath.vehicleMediaTreble,
+      value,
+      true,
+    );
+    value = (state.bass * 20).toInt() - 100;
+    valClient.setInt32(
+      VSSPath.vehicleMediaBass,
+      value,
+      true,
+    );
   }
 
-  void setTreble(double newVal) {
-    state = state.copyWith(treble: newVal);
+  bool handleSignalsUpdate(EntryUpdate update) {
+    bool handled = true;
+    switch (update.entry.path) {
+      case VSSPath.vehicleMediaVolume:
+        if (update.entry.value.hasUint32()) {
+          double value = update.entry.value.uint32.toDouble();
+          state = state.copyWith(volume: value);
+        }
+        break;
+      case VSSPath.vehicleMediaBalance:
+        if (update.entry.value.hasInt32()) {
+          double value = (update.entry.value.int32 + 100) / 20.0;
+          state = state.copyWith(balance: value);
+        }
+        break;
+      case VSSPath.vehicleMediaFade:
+        if (update.entry.value.hasInt32()) {
+          double value = (update.entry.value.int32 + 100) / 20.0;
+          state = state.copyWith(fade: value);
+        }
+        break;
+      case VSSPath.vehicleMediaTreble:
+        if (update.entry.value.hasInt32()) {
+          double value = (update.entry.value.int32 + 100) / 20.0;
+          state = state.copyWith(treble: value);
+        }
+        break;
+      case VSSPath.vehicleMediaBass:
+        if (update.entry.value.hasInt32()) {
+          double value = (update.entry.value.int32 + 100) / 20.0;
+          state = state.copyWith(bass: value);
+        }
+        break;
+      default:
+        handled = false;
+    }
+    return handled;
   }
 
-  void setBass(double newVal) {
-    state = state.copyWith(bass: newVal);
+  void setVolume(double newValue) {
+    state = state.copyWith(volume: newValue);
+    var valClient = ref.read(valClientProvider);
+    valClient.setUint32(
+      VSSPath.vehicleMediaVolume,
+      newValue.toInt(),
+      true,
+    );
   }
 
-  void setRearFront(double newVal) {
-    state = state.copyWith(rearFront: newVal);
+  void setBalance(double newValue) {
+    state = state.copyWith(balance: newValue);
+    int value = (newValue * 20).toInt() - 100;
+    var valClient = ref.read(valClientProvider);
+    valClient.setInt32(
+      VSSPath.vehicleMediaBalance,
+      value,
+      true,
+    );
+  }
+
+  void setFade(double newValue) {
+    state = state.copyWith(fade: newValue);
+    int value = (newValue * 20).toInt() - 100;
+    var valClient = ref.read(valClientProvider);
+    valClient.setInt32(
+      VSSPath.vehicleMediaFade,
+      value,
+      true,
+    );
   }
-}
 
+  void setTreble(double newValue) {
+    state = state.copyWith(treble: newValue);
+    int value = (newValue * 20).toInt() - 100;
+    var valClient = ref.read(valClientProvider);
+    valClient.setInt32(
+      VSSPath.vehicleMediaTreble,
+      value,
+      true,
+    );
+  }
+
+  void setBass(double newValue) {
+    state = state.copyWith(bass: newValue);
+    int value = (newValue * 20).toInt() - 100;
+    var valClient = ref.read(valClientProvider);
+    valClient.setInt32(
+      VSSPath.vehicleMediaBass,
+      value,
+      true,
+    );
+  }
+}
diff --git a/lib/data/data_providers/hybrid_notifier.dart b/lib/data/data_providers/hybrid_notifier.dart
index 3668f61..7381f5c 100644
--- a/lib/data/data_providers/hybrid_notifier.dart
+++ b/lib/data/data_providers/hybrid_notifier.dart
@@ -1,6 +1,6 @@
 // ignore_for_file: unused_local_variable
 
-import '../../export.dart';
+import 'package:flutter_ics_homescreen/export.dart';
 
 class HybridNotifier extends StateNotifier<Hybrid> {
   HybridNotifier(super.state);
@@ -9,38 +9,44 @@ class HybridNotifier extends StateNotifier<Hybrid> {
     switch (hybridState) {
       case HybridState.idle:
         state = state.copyWith(
-          topArrowState: ArrowState.blue,
-          leftArrowState: ArrowState.blue,
-          rightArrowState: ArrowState.blue,
-          batteryState: BatteryState.white,
+            hybridState: hybridState,
+            topArrowState: ArrowState.blue,
+            leftArrowState: ArrowState.blue,
+            rightArrowState: ArrowState.blue,
+            batteryState: BatteryState.white,
         );
         break;
       case HybridState.engineOutput:
         state = state.copyWith(
-          topArrowState: ArrowState.red,
-          leftArrowState: ArrowState.red,
-          rightArrowState: ArrowState.blue,
-          batteryState: BatteryState.red,
+            hybridState: hybridState,
+            topArrowState: ArrowState.red,
+            leftArrowState: ArrowState.red,
+            rightArrowState: ArrowState.blue,
+            batteryState: BatteryState.red,
         );
         break;
       case HybridState.regenerativeBreaking:
         state = state.copyWith(
+            hybridState: hybridState,
             topArrowState: ArrowState.blue,
             leftArrowState: ArrowState.blue,
             rightArrowState: ArrowState.green,
-            batteryState: BatteryState.green);
-
+            batteryState: BatteryState.green
+        );
         break;
-      case HybridState.baterryOutput:
+      case HybridState.batteryOutput:
         state = state.copyWith(
+            hybridState: hybridState,
             topArrowState: ArrowState.blue,
             leftArrowState: ArrowState.blue,
             rightArrowState: ArrowState.yellow,
-            batteryState: BatteryState.yellow);
+            batteryState: BatteryState.yellow
+        );
         break;
       default:
+        state = state.copyWith(hybridState: hybridState);
+        break;
     }
-    state = state.copyWith(hybridState: hybridState);
   }
 
   void updateHybridState(double speed, double engineSpeed, bool brake) {
@@ -55,25 +61,23 @@ class HybridNotifier extends StateNotifier<Hybrid> {
 
     // Variable for storing the average value of RPM
     double avgRpm = 0.0;
-
  
     if (speed == 0 && engineSpeed == 0) {
       // Set idle state.
       currentState = HybridState.idle;
     } else if (engineSpeed > 0 && speed > 0) {
-      // Set stan na engine output state..
+      // Set engine output state..
       currentState = HybridState.engineOutput;
     } else if (speed < 0 && brake) {
-      // Set  regenerative breaking state
+      // Set regenerative breaking state
       currentState = HybridState.regenerativeBreaking;
     } else if (speed > 0 && engineSpeed <= 0) {
       // Set battery output state
-      currentState = HybridState.baterryOutput;
+      currentState = HybridState.batteryOutput;
     }
 
     // Update hybrid state
     if (currentState != previousState) {
-      //state = state.copyWith(hybridState: currentState);
       setHybridState(currentState);
     }
   }
diff --git a/lib/data/data_providers/val_client.dart b/lib/data/data_providers/val_client.dart
new file mode 100644
index 0000000..28bb480
--- /dev/null
+++ b/lib/data/data_providers/val_client.dart
@@ -0,0 +1,118 @@
+import 'package:flutter_ics_homescreen/export.dart';
+import 'package:protos/protos.dart';
+
+class ValClient {
+  final KuksaConfig config;
+  final Ref ref;
+  late ClientChannel channel;
+  late VALClient stub;
+  late String authorization;
+
+  ValClient({required this.config, required this.ref}) {
+    debugPrint("Using ${config.hostname}:${config.port}");
+    ChannelCredentials creds;
+    if (config.use_tls && config.ca_certificate.isNotEmpty) {
+      print("Using TLS");
+      if (config.tls_server_name.isNotEmpty) {
+        creds = ChannelCredentials.secure(
+            certificates: config.ca_certificate,
+            authority: config.tls_server_name);
+      } else {
+        creds = ChannelCredentials.secure(certificates: config.ca_certificate);
+      }
+    } else {
+      creds = const ChannelCredentials.insecure();
+    }
+    channel = ClientChannel(config.hostname,
+        port: config.port, options: ChannelOptions(credentials: creds));
+    debugPrint('Start Listen on port: ${config.port}');
+    stub = VALClient(channel);
+  }
+
+  void startListen() async {
+    List<String> fewSignals = VSSPath().getSignalsList();
+    var request = SubscribeRequest();
+    Map<String, String> metadata = {};
+    if (config.authorization.isNotEmpty) {
+      metadata = {'authorization': "Bearer ${config.authorization}"};
+    }
+    for (int i = 0; i < fewSignals.length; i++) {
+      var entry = SubscribeEntry();
+      entry.path = fewSignals[i];
+      entry.fields.add(Field.FIELD_PATH);
+      entry.fields.add(Field.FIELD_VALUE);
+      request.entries.add(entry);
+    }
+    try {
+      var responseStream =
+          stub.subscribe(request, options: CallOptions(metadata: metadata));
+      responseStream.listen((value) async {
+        for (var update in value.updates) {
+          if (!(update.hasEntry() && update.entry.hasPath())) continue;
+          handleSignalsUpdate(update);
+        }
+      }, onError: (stacktrace, errorDescriptor) {
+        debugPrint(stacktrace.toString());
+      });
+    } catch (e) {
+      debugPrint(e.toString());
+    }
+  }
+
+  bool handleSignalsUpdate(EntryUpdate update) {
+    if (ref.read(vehicleProvider.notifier).handleSignalsUpdate(update)) {
+      return true;
+    }
+    return ref.read(audioStateProvider.notifier).handleSignalsUpdate(update);
+  }
+
+  void setUint32(String path, int value, [bool actuator = true]) async {
+    var dp = Datapoint()..uint32 = value;
+    set(path, dp, actuator);
+  }
+
+  void setInt32(String path, int value, [bool actuator = true]) async {
+    var dp = Datapoint()..int32 = value;
+    set(path, dp, actuator);
+  }
+
+  void setBool(String path, bool value, [bool actuator = true]) async {
+    var dp = Datapoint()..bool_12 = value;
+    set(path, dp, actuator);
+  }
+
+  void setString(String path, String value, [bool actuator = true]) async {
+    var dp = Datapoint()..string = value;
+    set(path, dp, actuator);
+  }
+
+  void setFloat(String path, double value, [bool actuator = true]) async {
+    var dp = Datapoint()..float = value;
+    set(path, dp, actuator);
+  }
+
+  void setDouble(String path, double value, [bool actuator = true]) async {
+    var dp = Datapoint()..double_18 = value;
+    set(path, dp, actuator);
+  }
+
+  void set(String path, Datapoint dp, bool actuator) async {
+    var entry = DataEntry()..path = path;
+    var update = EntryUpdate();
+    if (actuator) {
+      entry.actuatorTarget = dp;
+      update.fields.add(Field.FIELD_ACTUATOR_TARGET);
+    } else {
+      entry.value = dp;
+      update.fields.add(Field.FIELD_VALUE);
+    }
+    update.entry = entry;
+    var request = SetRequest();
+    request.updates.add(update);
+    Map<String, String> metadata = {};
+    if (config.authorization.isNotEmpty) {
+      metadata = {'authorization': "Bearer ${config.authorization}"};
+    }
+    await stub.set(request, options: CallOptions(metadata: metadata));
+  }
+}
diff --git a/lib/data/data_providers/vehicle_notifier.dart b/lib/data/data_providers/vehicle_notifier.dart
index 3a385a3..78c5328 100644
--- a/lib/data/data_providers/vehicle_notifier.dart
+++ b/lib/data/data_providers/vehicle_notifier.dart
@@ -3,43 +3,20 @@
 import 'dart:async';
 
 import 'package:flutter_ics_homescreen/export.dart';
-import 'package:flutter/services.dart';
 import 'package:protos/protos.dart';
 
-class KuksaConfig {
-  final String hostname;
-  final int port;
-  final String authorization;
-  final bool use_tls;
-  final List<int> ca_certificate;
-  final String tls_server_name;
-
-  static String configFilePath = '/etc/xdg/AGL/ics-homescreen.yaml';
-  static String defaultHostname = 'localhost';
-  static int defaultPort = 55555;
-  static String defaultCaCertPath = '/etc/kuksa-val/CA.pem';
-
-  KuksaConfig(
-      {required this.hostname,
-      required this.port,
-      required this.authorization,
-      required this.use_tls,
-      required this.ca_certificate,
-      required this.tls_server_name});
-}
-
-class VehicleNotifier extends StateNotifier<Vehicle> {
-  VehicleNotifier(super.state);
-
-  late ClientChannel channel;
-  late String authorization;
-  late VALClient stub;
+class VehicleNotifier extends Notifier<Vehicle> {
+  @override
+  Vehicle build() {
+    return Vehicle.initial();
+  }
 
   void updateSpeed(double newValue) {
     state = state.copyWith(speed: newValue);
   }
 
-  void handleSignalsUpdate(EntryUpdate update) {
+  bool handleSignalsUpdate(EntryUpdate update) {
+    bool handled = true;
     switch (update.entry.path) {
       case VSSPath.vehicleSpeed:
         if (update.entry.value.hasFloat()) {
@@ -66,11 +43,6 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
           state = state.copyWith(fuelLevel: update.entry.value.uint32);
         }
         break;
-      case VSSPath.vehicleMediaVolume:
-        if (update.entry.value.hasUint32()) {
-          state = state.copyWith(mediaVolume: update.entry.value.uint32);
-        }
-        break;
       case VSSPath.vehicleIsChildLockActiveLeft:
         if (update.entry.value.hasBool_12()) {
           state =
@@ -108,7 +80,6 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
           state = state.copyWith(rearRightTire: update.entry.value.uint32);
         }
         break;
-
       case VSSPath.vehicleIsAirConditioningActive:
         if (update.entry.value.hasBool_12()) {
           state = state.copyWith(
@@ -142,8 +113,7 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
             fanSpeed = 3;
           else if (value > 33)
             fanSpeed = 2;
-          else if (value > 0)
-            fanSpeed = 1;
+          else if (value > 0) fanSpeed = 1;
           state = state.copyWith(fanSpeed: fanSpeed);
         }
         break;
@@ -158,183 +128,18 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
               state.copyWith(passengerTemperature: update.entry.value.int32);
         }
         break;
-      // default:
-      //   debugPrint("ERROR: Unexpected path ${update.entry.path}");
-      //   break;
-    }
-  }
-
-  Future<KuksaConfig> readConfig() async {
-    String hostname = KuksaConfig.defaultHostname;
-    int port = KuksaConfig.defaultPort;
-    bool useTls = false;
-    String caPath = KuksaConfig.defaultCaCertPath;
-    List<int> caCert = [];
-    String tlsServerName = "";
-    String token = "";
-
-    // Read build time configuration from bundle
-    try {
-      var data = await rootBundle.loadString('app-config/config.yaml');
-      final dynamic yamlMap = loadYaml(data);
-
-      if (yamlMap.containsKey('hostname')) {
-        hostname = yamlMap['hostname'];
-      }
-
-      if (yamlMap.containsKey('port')) {
-        port = yamlMap['port'];
-      }
-
-      if (yamlMap.containsKey('use-tls')) {
-        var value = yamlMap['use-tls'];
-        if (value is bool) {
-          useTls = value;
-        }
-      }
-
-      if (useTls) {
-        if (yamlMap.containsKey('ca-certificate')) {
-          caPath = yamlMap['ca-certificate'];
-        }
-
-        if (yamlMap.containsKey('tls-server-name')) {
-          tlsServerName = yamlMap['tls_server_name'];
-        }
-      }
-
-      if (yamlMap.containsKey('authorization')) {
-        token = yamlMap['authorization'];
-      }
-    } catch (e) {
-      //debugPrint('ERROR: Could not read from file: $configFile');
-      debugPrint(e.toString());
-    }
-
-    // Try reading from configuration file in /etc
-    final configFile = File(KuksaConfig.configFilePath);
-    try {
-      print("Reading configuration ${KuksaConfig.configFilePath}");
-      String content = await configFile.readAsString();
-      final dynamic yamlMap = loadYaml(content);
-
-      if (yamlMap.containsKey('hostname')) {
-        hostname = yamlMap['hostname'];
-      }
-
-      if (yamlMap.containsKey('port')) {
-        port = yamlMap['port'];
-      }
-
-      if (yamlMap.containsKey('use-tls')) {
-        var value = yamlMap['use-tls'];
-        if (value is bool) {
-          useTls = value;
-        }
-      }
-      //debugPrint("Use TLS = $use_tls");
-
-      if (useTls) {
-        if (yamlMap.containsKey('ca-certificate')) {
-          caPath = yamlMap['ca-certificate'];
-        }
-        try {
-          caCert = File(caPath).readAsBytesSync();
-        } on Exception catch (_) {
-          print("ERROR: Could not read CA certificate file $caPath");
-          caCert = [];
-        }
-        //debugPrint("CA cert = $ca_cert");
-
-        if (yamlMap.containsKey('tls-server-name')) {
-          tlsServerName = yamlMap['tls_server_name'];
-        }
-      }
-
-      if (yamlMap.containsKey('authorization')) {
-        token = yamlMap['authorization'];
-      }
-      if (token.isNotEmpty) {
-        if (token.startsWith("/")) {
-          debugPrint("Reading authorization token $token");
-          String tokenFile = token;
-          try {
-            token = await File(tokenFile).readAsString();
-          } on Exception catch (_) {
-            print("ERROR: Could not read authorization token file $token");
-            token = "";
-          }
-        }
-      }
-      //debugPrint("authorization = $token");
-    } catch (e) {
-      debugPrint('WARNING: Could not read from file: $configFile');
-      //debugPrint(e.toString());
-    }
-    return KuksaConfig(
-        hostname: hostname,
-        port: port,
-        authorization: token,
-        use_tls: useTls,
-        ca_certificate: caCert,
-        tls_server_name: tlsServerName);
-  }
-
-  void startListen() async {
-    KuksaConfig config = await readConfig();
-    ChannelCredentials creds;
-    if (config.use_tls && config.ca_certificate.isNotEmpty) {
-      print("Using TLS");
-      if (config.tls_server_name.isNotEmpty) {
-        creds = ChannelCredentials.secure(
-            certificates: config.ca_certificate,
-            authority: config.tls_server_name);
-      } else {
-        creds = ChannelCredentials.secure(certificates: config.ca_certificate);
-      }
-    } else {
-      creds = const ChannelCredentials.insecure();
-    }
-    channel = ClientChannel(config.hostname,
-        port: config.port, options: ChannelOptions(credentials: creds));
-    debugPrint('Start Listen on port: ${config.port}');
-    stub = VALClient(channel);
-    authorization = config.authorization;
-    List<String> fewSignals = VSSPath().getSignalsList();
-    var request = SubscribeRequest();
-    Map<String, String> metadata = {};
-    if (authorization.isNotEmpty) {
-      metadata = {'authorization': "Bearer ${authorization}"};
-    }
-    for (int i = 0; i < fewSignals.length; i++) {
-      var entry = SubscribeEntry();
-      entry.path = fewSignals[i];
-      entry.fields.add(Field.FIELD_PATH);
-      entry.fields.add(Field.FIELD_VALUE);
-      request.entries.add(entry);
-    }
-    try {
-      var responseStream = stub.subscribe(request, options: CallOptions(metadata: metadata));
-      responseStream.listen((value) async {
-        for (var update in value.updates) {
-          if (!(update.hasEntry() && update.entry.hasPath())) continue;
-          handleSignalsUpdate(update);
-        }
-      }, onError: (stacktrace, errorDescriptor) {
-        debugPrint(stacktrace.toString());
-        state = const Vehicle.initialForDebug();
-      });
-    } catch (e) {
-      debugPrint(e.toString());
+      default:
+        handled = false;
     }
+    return handled;
   }
 
   void setChildLock({required String side}) async {
-    var helper = ValClientHelper(stub: stub, authorization: authorization);
+    var valClient = ref.read(valClientProvider);
     try {
       switch (side) {
         case 'left':
-          helper.setBool(
+          valClient.setBool(
             VSSPath.vehicleIsChildLockActiveLeft,
             !state.isChildLockActiveLeft,
             false,
@@ -343,7 +148,7 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
               isChildLockActiveLeft: !state.isChildLockActiveLeft);
           break;
         case 'right':
-          helper.setBool(
+          valClient.setBool(
             VSSPath.vehicleIsChildLockActiveRight,
             !state.isChildLockActiveRight,
             false,
@@ -360,22 +165,12 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
     }
   }
 
-  void setVolume(double newVal) {
-    state = state.copyWith(mediaVolume: newVal.toInt());
-    var helper = ValClientHelper(stub: stub, authorization: authorization);
-    helper.setUint32(
-      VSSPath.vehicleMediaVolume,
-      newVal.toInt(),
-      true,
-    );
-  }
-
   void setTemperature({required Side side, required int value}) {
-    var helper = ValClientHelper(stub: stub, authorization: authorization);
+    var valClient = ref.read(valClientProvider);
     try {
       switch (side) {
         case Side.left:
-          helper.setInt32(
+          valClient.setInt32(
             VSSPath.vehicleDriverTemperature,
             value,
             true,
@@ -383,7 +178,7 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
           state = state.copyWith(driverTemperature: value);
           break;
         case Side.right:
-          helper.setInt32(
+          valClient.setInt32(
             VSSPath.vehiclePassengerTemperature,
             value,
             true,
@@ -419,8 +214,8 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
       default:
         break;
     }
-    var helper = ValClientHelper(stub: stub, authorization: authorization);
-    helper.setUint32(
+    var valClient = ref.read(valClientProvider);
+    valClient.setUint32(
       VSSPath.vehicleFanSpeed,
       targetFanSpeed,
       true,
@@ -429,11 +224,11 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
   }
 
   void setHVACMode({required String mode}) {
-    var helper = ValClientHelper(stub: stub, authorization: authorization);
+    var valClient = ref.read(valClientProvider);
     try {
       switch (mode) {
         case 'airCondition':
-          helper.setBool(
+          valClient.setBool(
             VSSPath.vehicleIsAirConditioningActive,
             !state.isAirConditioningActive,
             true,
@@ -442,7 +237,7 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
               isAirConditioningActive: !state.isAirConditioningActive);
           break;
         case 'frontDefrost':
-          helper.setBool(
+          valClient.setBool(
             VSSPath.vehicleIsFrontDefrosterActive,
             !state.isFrontDefrosterActive,
             true,
@@ -451,7 +246,7 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
               isFrontDefrosterActive: !state.isFrontDefrosterActive);
           break;
         case 'rearDefrost':
-          helper.setBool(
+          valClient.setBool(
             VSSPath.vehicleIsRearDefrosterActive,
             !state.isRearDefrosterActive,
             true,
@@ -460,7 +255,7 @@ class VehicleNotifier extends StateNotifier<Vehicle> {
               isRearDefrosterActive: !state.isRearDefrosterActive);
           break;
         case 'recirculation':
-          helper.setBool(
+          valClient.setBool(
             VSSPath.vehicleIsRecirculationActive,
             !state.isRecirculationActive,
             true,