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 dashboard-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 "dashboard.yaml"
  instead of "dashboard.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.
- Bumped minimum SDK version to 2.18 in pubspec.yaml to enable
  "super" keyword support.  This matches what the version was set
  to in flutter-homescreen.
- Removed .dart_tool generated output that had been checked in,
  and added .gitignore file from flutter-homescreen so that things
  will hopefully stay clean in the future.

Bug-AGL: SPEC-4762

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ie23091b759458b5a131bc2d85e62925238839166

1 files changed, 0 insertions, 38 deletions

diff --git a/lib/vehicle-signals/intial_connection.dart b/lib/vehicle-signals/intial_connection.dart
deleted file mode 100644
index 8e79979..0000000
--- a/lib/vehicle-signals/intial_connection.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-import 'dart:io';
-import 'package:dashboard_app/vehicle-signals/vehicle_config.dart';
-import 'package:flutter/material.dart';
-import 'package:flutter_riverpod/flutter_riverpod.dart';
-
-import 'onBoarding_page.dart';
-
-class InitialScreen extends ConsumerWidget {
-  InitialScreen({Key? key, required this.client}) : super(key: key);
-  final HttpClient client;
-  late WebSocket socket;
-
-  @override
-  Widget build(BuildContext context, ref) {
-    final sockConnect = ref.watch(sockConnectprovider(client));
-
-    return sockConnect.when(
-      data: (socket) {
-        this.socket = socket;
-        this.socket.pingInterval = const Duration(seconds: 2);
-        return OnBoardingPage(client: client, socket: this.socket);
-      },
-      error: (e, stk) {
-        print(e);
-        ref.refresh(sockConnectprovider(client));
-        return const Scaffold(
-          backgroundColor: Colors.black,
-          body: Center(child: Text('error',style: TextStyle(color: Colors.white),)),
-        );
-      },
-      loading: () => const Scaffold(
-        backgroundColor: Colors.black,
-        body: Center(child: Text('loading',style: TextStyle(color: Colors.white))),
-      ),
-    );
-  }
-}
\ No newline at end of file