Add volume control to bottom panel

Changes:
- Import a reworked version of the KUKSA.val client code from the
  Flutter dashboard app, with the aggregated signal Riverpod provider
  replaced with per-signal providers for the signal the homescreen
  needs and a couple of temperature ones it might use.  Using separate
  providers is more in-line with recommended Riverpod best practices.
- Various tweaks to enable using Riverpod.
- Split the bottom panel out into its own widget, and add a stack in
  it to layer the default logo panel with the volume control slider,
  which has been added as a new widget definition to provide the hook
  to drive timer based lowering behavior like the Qt homescreen does.
- The KUKSA.val connection widget has been added to the bottom panel
  rather than overriding the top-level widget as in the dashboard and
  HVAC apps.  This seems preferable with respect to still providing
  some functionality in the event KUKSA.val is unavailable.
- Remove the old demo dashboard and HVAC pages that are now unused,
  along with the image assets they needed, to allow cleaning up
  pubspec.yaml and ease maintenance.

Bug-AGL: SPEC-4659

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I5d9180a3461948a58321564e71134c4961ce0ef7

1 files changed, 130 insertions, 0 deletions

diff --git a/lib/vehicle-signals/vss_providers.dart b/lib/vehicle-signals/vss_providers.dart
new file mode 100644
index 0000000..630a273
--- /dev/null
+++ b/lib/vehicle-signals/vss_providers.dart
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: Apache-2.0
+//import 'dart:ffi';
+import 'dart:io';
+import 'package:meta/meta.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+@immutable
+class VISServerSocket {
+  const VISServerSocket({required this.socket});
+
+  final WebSocket? socket;
+
+  VISServerSocket copyWith({WebSocket? socket}) {
+    return VISServerSocket(socket: socket ?? this.socket);
+  }
+}
+
+class VISServerSocketNotifier extends StateNotifier<VISServerSocket> {
+  VISServerSocketNotifier() : super(_initialValue);
+
+  static final VISServerSocket _initialValue = VISServerSocket(socket: null);
+
+  void update(WebSocket socket) {
+    state = state.copyWith(socket: socket);
+  }
+}
+
+final VISServerSocketProvider =
+    StateNotifierProvider<VISServerSocketNotifier, VISServerSocket>((ref) {
+  return VISServerSocketNotifier();
+});
+
+// Media Volume
+
+@immutable
+class VehicleSignalMediaVolume {
+  const VehicleSignalMediaVolume({required this.volume});
+
+  final int volume;
+
+  VehicleSignalMediaVolume copyWith({int? volume}) {
+    return VehicleSignalMediaVolume(volume: volume ?? this.volume);
+  }
+}
+
+class VehicleSignalMediaVolumeNotifier
+    extends StateNotifier<VehicleSignalMediaVolume> {
+  VehicleSignalMediaVolumeNotifier() : super(_initialValue);
+
+  static final VehicleSignalMediaVolume _initialValue =
+      VehicleSignalMediaVolume(volume: 50);
+
+  void update({int? volume}) {
+    int? n = volume;
+    if (n != null) {
+      n = n.toUnsigned(8);
+      if (n > 100) n = 100;
+    }
+    state = state.copyWith(volume: n);
+  }
+}
+
+//final vehicleSignalMediaVolumeProvider = StateNotifierProvider<
+//    VehicleSignalMediaVolumeNotifier, VehicleSignalMediaVolume>((ref) {
+//  return VehicleSignalMediaVolumeNotifier();
+//});
+
+final vehicleSignalMediaVolumeProvider = StateNotifierProvider<
+    VehicleSignalMediaVolumeNotifier,
+    VehicleSignalMediaVolume>((ref) => VehicleSignalMediaVolumeNotifier());
+
+// Inside Temperature
+
+@immutable
+class VehicleSignalInsideTemp {
+  const VehicleSignalInsideTemp({required this.temp});
+
+  final double temp;
+
+  VehicleSignalInsideTemp copyWith({double? temp}) {
+    return VehicleSignalInsideTemp(temp: temp ?? this.temp);
+  }
+}
+
+class VehicleSignalInsideTempNotifier
+    extends StateNotifier<VehicleSignalInsideTemp> {
+  VehicleSignalInsideTempNotifier() : super(_initialValue);
+
+  static final VehicleSignalInsideTemp _initialValue =
+      VehicleSignalInsideTemp(temp: 25);
+
+  void update({double? temp}) {
+    state = state.copyWith(temp: temp);
+  }
+}
+
+final vehicleSignalInsideTempProvider = StateNotifierProvider<
+    VehicleSignalInsideTempNotifier, VehicleSignalInsideTemp>(
+  (ref) => VehicleSignalInsideTempNotifier(),
+);
+
+// Outside Temperature
+
+@immutable
+class VehicleSignalOutsideTemp {
+  const VehicleSignalOutsideTemp({required this.temp});
+
+  final double temp;
+
+  VehicleSignalOutsideTemp copyWith({double? temp}) {
+    return VehicleSignalOutsideTemp(temp: temp ?? this.temp);
+  }
+}
+
+class VehicleSignalOutsideTempNotifier
+    extends StateNotifier<VehicleSignalOutsideTemp> {
+  VehicleSignalOutsideTempNotifier() : super(_initialValue);
+
+  static final VehicleSignalOutsideTemp _initialValue =
+      VehicleSignalOutsideTemp(temp: 32);
+
+  void update({double? temp}) {
+    state = state.copyWith(temp: temp);
+  }
+}
+
+final vehicleSignalOutsideTempProvider = StateNotifierProvider<
+    VehicleSignalOutsideTempNotifier, VehicleSignalOutsideTemp>(
+  (ref) => VehicleSignalOutsideTempNotifier(),
+);