Configurable units fixes

Notable changes:
- Add pressure unit to the units model.
- Add tire pressure unit configuration page under settings.
- Rework the VSS client, provider, and the associated handling in
  the vehicle and audio state providers to make the signal updating
  code reusable for processing the result of VAL API get commands.
- Add logic to get the initial values of the used VSS signals so
  the initial application state looks sane in demo scenarios.
- Add VSS signal support to the units provider so that changes will
  be pushed out for e.g. IC use.
- Fix pressure unit use in various widgets.
- Fix up range calculation for dashboard to correctly account for
  units and the incoming VSS value being in meters.
- Fix some unit naming inconsistencies around capitalization.

Bug-AGL: SPEC-5031, SPEC-5032

Change-Id: I33ac735dfbe35283bd30c92aa157cbdb7af1837c
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

1 files changed, 52 insertions, 43 deletions

diff --git a/lib/presentation/screens/dashboard/widgets/car_status.dart b/lib/presentation/screens/dashboard/widgets/car_status.dart
index b824871..604d404 100644
--- a/lib/presentation/screens/dashboard/widgets/car_status.dart
+++ b/lib/presentation/screens/dashboard/widgets/car_status.dart
@@ -4,25 +4,13 @@ import 'package:gradient_borders/gradient_borders.dart';
 
 import '../../../../export.dart';
 
-class CarStatus extends ConsumerStatefulWidget {
+class CarStatus extends ConsumerWidget {
   const CarStatus({super.key});
 
   @override
-  CarStatusState createState() => CarStatusState();
-}
-
-class CarStatusState extends ConsumerState<CarStatus> {
-  @override
-  void initState() {
-    super.initState();
-    // "ref" can be used in all life-cycles of a StatefulWidget.
-    //ref.read(counterProvider);
-  }
-
-  @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef Ref) {
     return Padding(
-      padding: const EdgeInsets.fromLTRB(0,0,0,84),
+      padding: const EdgeInsets.fromLTRB(0, 0, 0, 84),
       child: SizedBox(
         height: 440,
         width: 652,
@@ -59,6 +47,18 @@ class LeftCarStatus extends ConsumerWidget {
         ref.watch(vehicleProvider.select((vehicle) => vehicle.frontLeftTire));
     final rearLeftTire =
         ref.watch(vehicleProvider.select((vehicle) => vehicle.rearLeftTire));
+    final unit =
+        ref.watch(unitStateProvider.select((unit) => unit.pressureUnit));
+
+    String frontLeftTireString = "";
+    String rearLeftTireString = "";
+    if (unit == PressureUnit.psi) {
+      frontLeftTireString = (frontLeftTire * 0.145038).toStringAsFixed(1);
+      rearLeftTireString = (rearLeftTire * 0.145038).toStringAsFixed(1);
+    } else {
+      frontLeftTireString = frontLeftTire.toString();
+      rearLeftTireString = rearLeftTire.toString();
+    }
 
     return Column(
       mainAxisAlignment: MainAxisAlignment.spaceAround,
@@ -67,22 +67,21 @@ class LeftCarStatus extends ConsumerWidget {
         Column(
           crossAxisAlignment: CrossAxisAlignment.end,
           children: [
-            PSIProgressIndicator(value: frontLeftTire.toDouble()),
+            TirePressureProgressIndicator(value: frontLeftTire.toDouble()),
             Row(
               crossAxisAlignment: CrossAxisAlignment.end,
               mainAxisAlignment: MainAxisAlignment.end,
               children: [
                 Text(
-                  frontLeftTire.toStringAsFixed(1),
+                  frontLeftTireString,
                   style: GoogleFonts.brunoAce(
-                    textStyle: TextStyle(
-                        color: Colors.white, fontSize: 44),
+                    textStyle: TextStyle(color: Colors.white, fontSize: 44),
                   ),
                 ),
                 SizedBox(
                   width: 5,
                 ),
-                PSIWidget(),
+                TirePressureUnitWidget(),
               ],
             ),
           ],
@@ -91,22 +90,21 @@ class LeftCarStatus extends ConsumerWidget {
         Column(
           crossAxisAlignment: CrossAxisAlignment.end,
           children: [
-            PSIProgressIndicator(value: rearLeftTire.toDouble()),
+            TirePressureProgressIndicator(value: rearLeftTire.toDouble()),
             Row(
               crossAxisAlignment: CrossAxisAlignment.end,
               mainAxisAlignment: MainAxisAlignment.end,
               children: [
                 Text(
-                  rearLeftTire.toStringAsFixed(1),
+                  rearLeftTireString,
                   style: GoogleFonts.brunoAce(
-                    textStyle: TextStyle(
-                        color: Colors.white, fontSize: 44),
+                    textStyle: TextStyle(color: Colors.white, fontSize: 44),
                   ),
                 ),
                 SizedBox(
                   width: 5,
                 ),
-                PSIWidget(),
+                TirePressureUnitWidget(),
               ],
             ),
           ],
@@ -127,6 +125,18 @@ class RightCarStatus extends ConsumerWidget {
         ref.watch(vehicleProvider.select((vehicle) => vehicle.frontRightTire));
     final rearRightTire =
         ref.watch(vehicleProvider.select((vehicle) => vehicle.rearRightTire));
+    final unit =
+        ref.watch(unitStateProvider.select((unit) => unit.pressureUnit));
+
+    String frontRightTireString = "";
+    String rearRightTireString = "";
+    if (unit == PressureUnit.psi) {
+      frontRightTireString = (frontRightTire * 0.145038).toStringAsFixed(1);
+      rearRightTireString = (rearRightTire * 0.145038).toStringAsFixed(1);
+    } else {
+      frontRightTireString = frontRightTire.toString();
+      rearRightTireString = rearRightTire.toString();
+    }
 
     return Column(
       mainAxisAlignment: MainAxisAlignment.spaceAround,
@@ -134,23 +144,21 @@ class RightCarStatus extends ConsumerWidget {
       children: [
         Column(
           crossAxisAlignment: CrossAxisAlignment.start,
-          
           children: [
-            PSIProgressIndicator(value: frontRightTire.toDouble()),
+            TirePressureProgressIndicator(value: frontRightTire.toDouble()),
             Row(
               crossAxisAlignment: CrossAxisAlignment.end,
               children: [
                 Text(
-                  frontRightTire.toStringAsFixed(1),
+                  frontRightTireString,
                   style: GoogleFonts.brunoAce(
-                    textStyle: TextStyle(
-                        color: Colors.white, fontSize: 44),
+                    textStyle: TextStyle(color: Colors.white, fontSize: 44),
                   ),
                 ),
                 SizedBox(
                   width: 5,
                 ),
-                PSIWidget(),
+                TirePressureUnitWidget(),
               ],
             ),
           ],
@@ -159,22 +167,21 @@ class RightCarStatus extends ConsumerWidget {
         Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
-            PSIProgressIndicator(value: rearRightTire.toDouble()),
+            TirePressureProgressIndicator(value: rearRightTire.toDouble()),
             Row(
               crossAxisAlignment: CrossAxisAlignment.end,
               mainAxisAlignment: MainAxisAlignment.start,
               children: [
                 Text(
-                  rearRightTire.toStringAsFixed(1),
+                  rearRightTireString,
                   style: GoogleFonts.brunoAce(
-                    textStyle: TextStyle(
-                        color: Colors.white, fontSize: 44),
+                    textStyle: TextStyle(color: Colors.white, fontSize: 44),
                   ),
                 ),
                 SizedBox(
                   width: 5,
                 ),
-                PSIWidget(),
+                TirePressureUnitWidget(),
               ],
             ),
           ],
@@ -184,9 +191,9 @@ class RightCarStatus extends ConsumerWidget {
   }
 }
 
-class PSIProgressIndicator extends StatelessWidget {
+class TirePressureProgressIndicator extends StatelessWidget {
   final double value;
-  const PSIProgressIndicator({
+  const TirePressureProgressIndicator({
     Key? key,
     required this.value, // Require the value to be passed
   }) : super(key: key);
@@ -208,7 +215,6 @@ class PSIProgressIndicator extends StatelessWidget {
                   LinearGradient(colors: const [Colors.white30, Colors.white]),
             ),
           ),
-          
         ),
         Positioned(
           left: 3,
@@ -231,17 +237,20 @@ class PSIProgressIndicator extends StatelessWidget {
   }
 }
 
-class PSIWidget extends StatelessWidget {
-  const PSIWidget({
+class TirePressureUnitWidget extends ConsumerWidget {
+  const TirePressureUnitWidget({
     super.key,
   });
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
+    final unit =
+        ref.watch(unitStateProvider.select((unit) => unit.pressureUnit));
+
     return Padding(
       padding: const EdgeInsets.only(left: 4.0, right: 1.0, bottom: 2.0),
       child: Text(
-        'PSI',
+        unit == PressureUnit.kilopascals ? 'kPa' : 'PSI',
         style: TextStyle(
           fontSize: 26,
         ),