Rework Riverpod provider usage

Replace the single Riverpod provider for all vehicle signals with
separate ones for each required signal used directly in the widgets
that require them.  This is more in line with recommended Riverpod
practice, and should avoids driving full widget tree rebuilds on
every signal received.

Bug-AGL: SPEC-4660

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ibe1ff26f8cd95cbe9cbb477feaf31c9f4919bf6a

1 files changed, 38 insertions, 0 deletions

diff --git a/lib/vehicle-signals/intial_connection.dart b/lib/vehicle-signals/intial_connection.dart
new file mode 100644
index 0000000..8e79979
--- /dev/null
+++ b/lib/vehicle-signals/intial_connection.dart
@@ -0,0 +1,38 @@
+// 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))),
+      ),
+    );
+  }
+}
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