add: basic webrtc is working

ui/lib/main.dart

@@ -1,12 +1,30 @@
 import 'package:flutter/material.dart';
+//import 'package:grpc/grpc_web.dart';
+import 'package:grpc/grpc.dart';
+import 'package:logger/logger.dart';
 import 'package:ui/call.dart';
+import 'package:ui/gen/signaler_service.pbgrpc.dart';
+import 'package:ui/session_service.dart';
 
-void main() {
-  runApp(const MyApp());
+void main() async {
+  Logger logger = Logger();
+  logger.i("Establishing connection...");
+  final channel = ClientChannel(
+    '192.168.0.65',
+    port: 8080,
+    options: const ChannelOptions(credentials: ChannelCredentials.insecure()),
+    channelShutdownHandler: () {
+      logger.e("Channel shutdown unexpectedly");
+    },
+  );
+  final stub = SignalerServiceClient(channel);
+  runApp(MyApp(stub, SessionService(stub)));
 }
 
 class MyApp extends StatelessWidget {
-  const MyApp({super.key});
+  final SignalerServiceClient client;
+  final SessionService sessionService;
+  const MyApp(this.client, this.sessionService, {super.key});
 
   // This widget is the root of your application.
   @override
@@ -32,13 +50,22 @@ class MyApp extends StatelessWidget {
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
         useMaterial3: true,
       ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
+      home: MyHomePage(
+        client,
+        sessionService,
+        title: 'Home Sensors',
+        home: "home1234",
+      ),
     );
   }
 }
 
 class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
+  final SignalerServiceClient client;
+  final SessionService sessionService;
+  final String home;
+  const MyHomePage(this.client, this.sessionService,
+      {super.key, required this.title, required this.home});
 
   // This widget is the home page of your application. It is stateful, meaning
   // that it has a State object (defined below) that contains fields that affect
@@ -56,17 +83,38 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
+  String topMessage = "Creating session...";
+  List<Call> camerasToRender = [];
 
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
+  @override
+  void initState() {
+    super.initState();
+    _getSession();
+    _listCameras();
+  }
+
+  _getSession() async {
+    var token = await widget.sessionService.getAuthToken(widget.home);
+    topMessage = "Created session $token";
+    setState(() {});
+  }
+
+  _listCameras() async {
+    var callOptions = CallOptions(metadata: {
+      'Authorization': await widget.sessionService.getAuthToken(widget.home)
     });
+    var cameras = await widget.client
+        .listCameras(ListCamerasRequest(), options: callOptions);
+
+    for (var camera in cameras.cameras) {
+      camerasToRender.add(Call(
+        widget.client,
+        widget.sessionService,
+        cameraID: camera.identifier,
+        home: widget.home,
+      ));
+    }
+    setState(() {});
   }
 
   @override
@@ -87,18 +135,15 @@ class _MyHomePageState extends State<MyHomePage> {
         // the App.build method, and use it to set our appbar title.
         title: Text(widget.title),
       ),
-      body: const Center(
+      body: Column(
         // Center is a layout widget. It takes a single child and positions it
         // in the middle of the parent.
-        child: Call(
-          host: '',
-        ),
+
+        children: <Widget>[
+              Text(topMessage),
+            ] +
+            camerasToRender,
       ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
     );
   }
 }