Websocket client tool results (#12)

This fixes large tool results sometimes failing to reach our server

CHANGELOG.md

@@ -31,3 +31,7 @@
 * Use simplifed `transcript` messages.
 * Expose `sendData` and `dataMessageNotifier` for bleeding edge use cases.
 * Update dependencies.
+
+# 0.0.8
+
+* Send large data messages over our websocket instead of the WebRTC data channel to avoid dropped UDP packets.

example/pubspec.lock

@@ -82,12 +82,13 @@ packages:
     source: hosted
     version: "1.0.8"
   dart_webrtc:
-    dependency: transitive
+    dependency: "direct overridden"
     description:
-      name: dart_webrtc
-      sha256: c664ad88d5646735753add421ee2118486c100febef5e92b7f59cdbabf6a51f6
-      url: "https://pub.dev"
-    source: hosted
+      path: "."
+      ref: HEAD
+      resolved-ref: e78507fdcc2b46621a389607e16f92fa942befd7
+      url: "https://github.com/flutter-webrtc/dart-webrtc.git"
+    source: git
     version: "1.4.9"
   dbus:
     dependency: transitive
@@ -475,7 +476,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.0.7"
+    version: "0.0.8"
   uuid:
     dependency: transitive
     description:

example/pubspec.yaml

@@ -23,3 +23,10 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+
+# Temporary fix for flutter 3.27.0 incompatibility with dart_webrtc 1.4.9
+dependency_overrides:
+  dart_webrtc:
+    git:
+      url: https://github.com/flutter-webrtc/dart-webrtc.git
+      ref: f27d27c7af41ceeebe31b295af4fb38e7b4d793e

lib/src/session.dart

@@ -5,7 +5,7 @@ import 'package:livekit_client/livekit_client.dart' as lk;
 import 'package:web_socket_channel/web_socket_channel.dart';
 import 'dart:convert';
 
-const ultravoxSdkVersion = '0.0.7';
+const ultravoxSdkVersion = '0.0.8';
 
 /// The current status of an [UltravoxSession].
 enum UltravoxSessionStatus {
@@ -320,8 +320,12 @@ class UltravoxSession {
       throw Exception("Data must contain a 'type' key");
     }
     final message = jsonEncode(data);
-    await _room.localParticipant
-        ?.publishData(utf8.encode(message), reliable: true);
+    final messageBytes = utf8.encode(message);
+    if (messageBytes.length > 1024) {
+      _wsChannel.sink.add(message);
+    } else {
+      await _room.localParticipant?.publishData(messageBytes, reliable: true);
+    }
   }
 
   Future<void> _disconnect() async {

pubspec.yaml

@@ -1,6 +1,6 @@
 name: ultravox_client
 description: "Flutter client SDK for Ultravox."
-version: 0.0.7
+version: 0.0.8
 homepage: https://ultravox.ai
 repository: https://github.com/fixie-ai/ultravox-client-sdk-flutter
 topics: