e2e: fix resume/full-reconnect. (#194)

* fix: full re-connect.

* chore: Reset fullReConnect state after ConnectionState is emitted.

* Support full reconnect, fix Migration, NodeFailure, FullReconnect test cases.

* revert Timeouts.connection.

* update.

* Refactor the resume/reconnect implementation.

* more changes.

* update.

* Changed to simpler reconnect/recovery logic.

* update.

* update.

* code format.

* tidy.

* bump version for flutter-webrtc.

* chore: Remove unused exception class (SignalReconnectError).

* chore: rename `fullReconnectOnNext` to `fullReconnect`.

* update.

* chore: Revert changes for `unpublishTrack`.

* chore: Reconnect signalClient when resumeConnection.

* revert `rethrow` in engine.connect.

* Use removePublishedTrack instead of unpublishTrack (RemoteParticipant).

* chore: Correctly handle PeerConnectionState for resume/full-reconnect.

* tidy.

lib/src/participant/local.dart

@@ -240,6 +240,18 @@ class LocalParticipant extends Participant<LocalTrackPublication> {
     await pub.dispose();
   }
 
+  Future<void> rePublishAllTracks() async {
+    final tracks = trackPublications.values.toList();
+    trackPublications.clear();
+    for (LocalTrackPublication track in tracks) {
+      if (track.track is LocalAudioTrack) {
+        await publishAudioTrack(track.track as LocalAudioTrack);
+      } else if (track.track is LocalVideoTrack) {
+        await publishVideoTrack(track.track as LocalVideoTrack);
+      }
+    }
+  }
+
   /// Publish a new data payload to the room.
   /// @param destinationSids When empty, data will be forwarded to each participant in the room.
   Future<void> publishData(

lib/src/participant/participant.dart

@@ -39,7 +39,7 @@ abstract class Participant<T extends TrackPublication>
   double audioLevel = 0;
 
   /// Server assigned unique id.
-  final String sid;
+  String sid;
 
   /// User-assigned identity.
   String identity;
@@ -160,7 +160,7 @@ abstract class Participant<T extends TrackPublication>
   void updateFromInfo(lk_models.ParticipantInfo info) {
     identity = info.identity;
     _name = info.name;
-    // participantSid = info.sid;
+    sid = info.sid;
     if (info.metadata.isNotEmpty) {
       _setMetadata(info.metadata);
     }
@@ -189,7 +189,8 @@ abstract class Participant<T extends TrackPublication>
   Future<void> unpublishTrack(String trackSid, {bool notify = true});
 
   /// Convenience method to unpublish all tracks.
-  Future<void> unpublishAllTracks({bool notify = true}) async {
+  Future<void> unpublishAllTracks(
+      {bool notify = true, bool? stopOnUnpublish}) async {
     final trackSids = trackPublications.keys.toSet();
     for (final trackid in trackSids) {
       await unpublishTrack(trackid, notify: notify);

lib/src/participant/remote.dart

@@ -180,18 +180,18 @@ class RemoteParticipant extends Participant<RemoteTrackPublication> {
       }
     }
 
-    // unpublish any track that is not in the info
+    // remove any published track that is not in the info
     final validSids = info.tracks.map((e) => e.sid);
     final removeSids =
         trackPublications.keys.where((e) => !validSids.contains(e)).toSet();
     for (final sid in removeSids) {
-      await unpublishTrack(sid);
+      await removePublishedTrack(sid);
     }
   }
 
-  @override
-  Future<void> unpublishTrack(String trackSid, {bool notify = true}) async {
-    logger.finer('Unpublish track sid: $trackSid, notify: $notify');
+  Future<void> removePublishedTrack(String trackSid,
+      {bool notify = true}) async {
+    logger.finer('removePublishedTrack track sid: $trackSid, notify: $notify');
     final pub = trackPublications.remove(trackSid);
     if (pub == null) {
       logger.warning('Publication not found $trackSid');
@@ -220,6 +220,12 @@ class RemoteParticipant extends Participant<RemoteTrackPublication> {
     await pub.dispose();
   }
 
+  @Deprecated(
+      '`unpublishTrack` is deprecated, use `removePublishedTrack` instead')
+  @override
+  Future<void> unpublishTrack(String trackSid, {bool notify = true}) =>
+      removePublishedTrack(trackSid, notify: notify);
+
   @internal
   lk_models.ParticipantTracks participantTracks() =>
       lk_models.ParticipantTracks(