fix(llc): update stats format (#600)

Author: esarbanis

packages/stream_video/lib/src/call/session/call_session.dart

@@ -592,7 +592,7 @@ class CallSession extends Disposable {
     StreamPeerConnection pc,
     List<RtcStats> rtcStats,
     RtcPrintableStats rtcPrintableStats,
-    Map<String, dynamic> rtcRawStats,
+    List<Map<String, dynamic>> rtcRawStats,
   ) {
     _stats.emit(
       CallStats(

packages/stream_video/lib/src/models/call_stats.dart

@@ -17,7 +17,7 @@ class CallStats {
   final StreamPeerType peerType;
   final List<RtcStats> stats;
   final RtcPrintableStats printable;
-  final Map<String, dynamic> raw;
+  final List<Map<String, dynamic>> raw;
 
   @override
   String toString() {

packages/stream_video/lib/src/webrtc/model/stats/rtc_stats_mapper.dart

@@ -29,21 +29,16 @@ const _space = ' ';
 const _lineFeed = '\n';
 
 extension RtcStatsMapper on List<rtc.StatsReport> {
-  Map<String, dynamic> toRawStats() {
-    var rawStats = <String, dynamic>{};
+  List<Map<String, dynamic>> toRawStats() {
+    final rawStats = <Map<String, dynamic>>[];
 
     for (final report in this) {
-      final type = report.type;
-
-      rawStats = {
-        ...rawStats,
-        type: {
+      rawStats.add({
           'id': report.id,
           'type': report.type,
           'timestamp': report.timestamp,
           ...report.values,
-        },
-      };
+      });
     }
 
     return rawStats;

packages/stream_video/lib/src/webrtc/peer_connection.dart

@@ -57,7 +57,7 @@ typedef OnStats = void Function(
   StreamPeerConnection,
   List<RtcStats>,
   RtcPrintableStats,
-  Map<String, dynamic>,
+  List<Map<String, dynamic>>,
 );
 
 /// Wrapper around the WebRTC connection that contains tracks.