fix: read the camelCase keys of the roomConfig claim

.changes/jwt-room-config-claim-keys

@@ -0,0 +1 @@
+patch type="fixed" "`RoomConfiguration` and `RoomAgentDispatch` now also read the camelCase keys of the `roomConfig` claim (`agentName`, `emptyTimeout`, and so on), so `TokenSourceResponse.jwtPayload?.roomConfiguration` returns the values of a real LiveKit token instead of null fields"

lib/src/token_source/room_configuration.dart

@@ -16,6 +16,14 @@ import 'package:json_annotation/json_annotation.dart';
 
 part 'room_configuration.g.dart';
 
+// Token endpoints use snake_case keys, while LiveKit tokens write the
+// `roomConfig` claim as protobuf JSON with camelCase keys. Read both.
+Map<String, dynamic> _withSnakeCaseKeys(Map<String, dynamic> json, Map<String, String> camelToSnake) => {
+  ...json,
+  for (final entry in camelToSnake.entries)
+    if (json[entry.value] == null && json[entry.key] != null) entry.value: json[entry.key],
+};
+
 /// Configuration for dispatching an agent to a room.
 @JsonSerializable()
 class RoomAgentDispatch {
@@ -35,7 +43,8 @@ class RoomAgentDispatch {
     this.deployment,
   });
 
-  factory RoomAgentDispatch.fromJson(Map<String, dynamic> json) => _$RoomAgentDispatchFromJson(json);
+  factory RoomAgentDispatch.fromJson(Map<String, dynamic> json) =>
+      _$RoomAgentDispatchFromJson(_withSnakeCaseKeys(json, const {'agentName': 'agent_name'}));
   Map<String, dynamic> toJson() => _$RoomAgentDispatchToJson(this);
 }
 
@@ -91,6 +100,15 @@ class RoomConfiguration {
     this.agents,
   });
 
-  factory RoomConfiguration.fromJson(Map<String, dynamic> json) => _$RoomConfigurationFromJson(json);
+  factory RoomConfiguration.fromJson(Map<String, dynamic> json) => _$RoomConfigurationFromJson(
+    _withSnakeCaseKeys(json, const {
+      'emptyTimeout': 'empty_timeout',
+      'departureTimeout': 'departure_timeout',
+      'maxParticipants': 'max_participants',
+      'minPlayoutDelay': 'min_playout_delay',
+      'maxPlayoutDelay': 'max_playout_delay',
+      'syncStreams': 'sync_streams',
+    }),
+  );
   Map<String, dynamic> toJson() => _$RoomConfigurationToJson(this);
 }

test/token/token_source_test.dart

@@ -219,6 +219,46 @@ void main() {
       expect(config.agents!.first.agentName, 'demo-agent');
       expect(config.agents!.first.metadata, '{"foo":"bar"}');
     });
+
+    test('parses room configuration from the camelCase keys of the roomConfig claim', () {
+      final token = _generateToken(
+        roomConfig: {
+          'name': 'demo-room',
+          'emptyTimeout': 300,
+          'departureTimeout': 20,
+          'maxParticipants': 10,
+          'minPlayoutDelay': 100,
+          'maxPlayoutDelay': 500,
+          'syncStreams': true,
+          'agents': [
+            {
+              'agentName': 'demo-agent',
+              'metadata': '{"foo":"bar"}',
+              'deployment': 'staging',
+            },
+          ],
+        },
+      );
+
+      final response = TokenSourceResponse(
+        serverUrl: 'https://test.livekit.io',
+        participantToken: token,
+      );
+
+      final config = response.jwtPayload?.roomConfiguration;
+      expect(config, isNotNull);
+      expect(config!.name, 'demo-room');
+      expect(config.emptyTimeout, 300);
+      expect(config.departureTimeout, 20);
+      expect(config.maxParticipants, 10);
+      expect(config.minPlayoutDelay, 100);
+      expect(config.maxPlayoutDelay, 500);
+      expect(config.syncStreams, isTrue);
+      expect(config.agents, hasLength(1));
+      expect(config.agents!.first.agentName, 'demo-agent');
+      expect(config.agents!.first.metadata, '{"foo":"bar"}');
+      expect(config.agents!.first.deployment, 'staging');
+    });
   });
 
   group('TokenSourceResponse', () {