Rework to use KUKSA.val databroker gRPC API

Rework to move from the WebSocket API with the older KUKSA.val
server to the gRPC "VAL" API of the databroker.

Changes include:
- All VISS WebSocket API code has been removed, and the signal
  providers replumbed to be driven by a new VssClient class with
  a homescreen-specific child class to hold all the gRPC API
  handling.
- The generated code for the VAL API and its dependencies has
  been checked in under lib/generated, as there still does not
  seem to be a good way to generate it during the Flutter build.
- The configuration file is now expected to be "homescreen.yaml"
  instead of "homescreen_config.yaml".  The authorization token
  field name has been renamed to "authorization", and there are
  new "use-tls" and "ca-certificate" configuration fields.  TLS
  is disabled by default for now, and the default CA certificate
  is /etc/kuksa.val/CA.pem.
- Updated .gitignore to cover a couple of generated files that
  weren't included.

Bug-AGL: SPEC-4762, SPEC-4903

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I1b95ed27a72435364d54ec846f2be88e3d8bb092

1 files changed, 17 insertions, 15 deletions

diff --git a/lib/homescreen.dart b/lib/homescreen.dart
index 7501292..be9c7ca 100644
--- a/lib/homescreen.dart
+++ b/lib/homescreen.dart
@@ -1,24 +1,26 @@
 import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_homescreen/config.dart';
 import 'package:grpc/grpc.dart';
 import 'package:flutter_homescreen/generated/applauncher.pbgrpc.dart';
 import 'package:flutter_homescreen/page_apps.dart';
 import 'package:flutter_homescreen/widget_clock.dart';
 import 'package:flutter_homescreen/bottom_panel.dart';
+import 'package:flutter_homescreen/vehicle-signals/vss_client.dart';
+import 'package:flutter_homescreen/vehicle-signals/vss_provider.dart';
 
 enum PageIndex { home, dashboard, hvac, media }
 
-class Homescreen extends StatefulWidget {
-  Homescreen({Key? key, required this.client}) : super(key: key);
-  final HttpClient client;
+class Homescreen extends ConsumerStatefulWidget {
+  Homescreen({Key? key}) : super(key: key);
 
   @override
   _HomescreenState createState() => _HomescreenState();
 }
 
-class _HomescreenState extends State<Homescreen> with TickerProviderStateMixin {
+class _HomescreenState extends ConsumerState<Homescreen> with TickerProviderStateMixin {
   int _selectedIndex = 0;
   int _previousIndex = 0;
 
@@ -26,6 +28,7 @@ class _HomescreenState extends State<Homescreen> with TickerProviderStateMixin {
   late AppLauncherClient stub;
   List<String> apps_stack = [];
   static const agl_shell_channel = MethodChannel('flutter/agl_shell');
+  late VssClient vss;
 
   Future<List<AppInfo>> getAppList() async {
     var response = await stub.listApplications(ListRequest());
@@ -34,6 +37,7 @@ class _HomescreenState extends State<Homescreen> with TickerProviderStateMixin {
       debugPrint("$info");
     }
     return response.apps;
+    return [];
   }
 
   addAppToStack(String id) {
@@ -90,7 +94,7 @@ class _HomescreenState extends State<Homescreen> with TickerProviderStateMixin {
   }
 
   initState() {
-    debugPrint("_HomescreenState.initState!");
+    //debugPrint("_HomescreenState.initState!");
     channel = ClientChannel('localhost',
         port: 50052,
         options: ChannelOptions(credentials: ChannelCredentials.insecure()));
@@ -99,6 +103,9 @@ class _HomescreenState extends State<Homescreen> with TickerProviderStateMixin {
 
     handleAppStatusEvents();
 
+    vss = ref.read(vssClientProvider);
+    vss.run();
+
     super.initState();
   }
 
@@ -276,16 +283,11 @@ class _HomescreenState extends State<Homescreen> with TickerProviderStateMixin {
               child: _childForIndex(_selectedIndex),
             ),
           ),
-          Stack(children: [
-            BottomPanelWidget(
-                height: railSize,
-                color: NavigationBarTheme.of(context).backgroundColor),
-            Align(
-                alignment: Alignment.bottomLeft,
-                child: GetConfig(client: widget.client))
-          ]),
-        ],
-      ),
+          BottomPanelWidget(
+              height: railSize,
+              color: NavigationBarTheme.of(context).backgroundColor
+          )
+      ])
     );
   }
 }