Create android & web plugins (#15)

* create android & web plugins

* apply `flutter format .`

lib/src/participant/local_participant.dart

@@ -40,7 +40,8 @@ class LocalParticipant extends Participant {
 
   /// publish an audio track to the room
   Future<TrackPublication> publishAudioTrack(LocalAudioTrack track) async {
-    if (audioTracks.any((e) => e.track?.mediaStreamTrack.id == track.mediaStreamTrack.id)) {
+    if (audioTracks.any(
+        (e) => e.track?.mediaStreamTrack.id == track.mediaStreamTrack.id)) {
       throw TrackPublishException('track already exists');
     }
 
@@ -82,7 +83,8 @@ class LocalParticipant extends Participant {
     LocalVideoTrack track, {
     TrackPublishOptions? options,
   }) async {
-    if (videoTracks.any((e) => e.track?.mediaStreamTrack.id == track.mediaStreamTrack.id)) {
+    if (videoTracks.any(
+        (e) => e.track?.mediaStreamTrack.id == track.mediaStreamTrack.id)) {
       throw TrackPublishException('track already exists');
     }
 
@@ -117,7 +119,8 @@ class LocalParticipant extends Participant {
       }
     }
 
-    logger.fine('Compute encodings with resolution: ${width}x${height}, options: ${options}');
+    logger.fine(
+        'Compute encodings with resolution: ${width}x${height}, options: ${options}');
 
     final encodings = Utils.computeVideoEncodings(
       width: width,

lib/src/participant/participant.dart

@@ -20,7 +20,8 @@ import 'remote_participant.dart';
 
 /// Base for [RemoteParticipant] and [LocalParticipant],
 /// can not be instantiated directly.
-abstract class Participant extends DisposableChangeNotifier with EventsEmittable<ParticipantEvent> {
+abstract class Participant extends DisposableChangeNotifier
+    with EventsEmittable<ParticipantEvent> {
   /// map of track sid => published track
   final trackPublications = <String, TrackPublication>{};
 
@@ -49,7 +50,8 @@ abstract class Participant extends DisposableChangeNotifier with EventsEmittable
   DateTime get joinedAt {
     final pi = _participantInfo;
     if (pi != null) {
-      return DateTime.fromMillisecondsSinceEpoch(pi.joinedAt.toInt() * 1000, isUtc: true);
+      return DateTime.fromMillisecondsSinceEpoch(pi.joinedAt.toInt() * 1000,
+          isUtc: true);
     }
     return DateTime.now();
   }
@@ -160,9 +162,11 @@ abstract class Participant extends DisposableChangeNotifier with EventsEmittable
 
 // Convenience extension
 extension ParticipantExt on Participant {
-  List<TrackPublication> get videoTracks =>
-      trackPublications.values.where((e) => e.kind == lk_models.TrackType.VIDEO).toList();
+  List<TrackPublication> get videoTracks => trackPublications.values
+      .where((e) => e.kind == lk_models.TrackType.VIDEO)
+      .toList();
 
-  List<TrackPublication> get audioTracks =>
-      trackPublications.values.where((e) => e.kind == lk_models.TrackType.AUDIO).toList();
+  List<TrackPublication> get audioTracks => trackPublications.values
+      .where((e) => e.kind == lk_models.TrackType.AUDIO)
+      .toList();
 }

lib/src/participant/remote_participant.dart

@@ -65,7 +65,8 @@ class RemoteParticipant extends Participant {
       logger.fine('addSubscribedMediaTrack() pub is null, will wait...');
       // Wait for the metadata to arrive
       final event = await events.waitFor<TrackPublishedEvent>(
-        filter: (event) => event.participant == this && event.publication.sid == trackSid,
+        filter: (event) =>
+            event.participant == this && event.publication.sid == trackSid,
         duration: Timeouts.publish,
         onTimeout: () => throw TrackSubscriptionExceptionEvent(
           participant: this,
@@ -78,7 +79,8 @@ class RemoteParticipant extends Participant {
     }
 
     // Check if track type is supported, throw if not.
-    if (![lk_models.TrackType.AUDIO, lk_models.TrackType.VIDEO].contains(pub.kind)) {
+    if (![lk_models.TrackType.AUDIO, lk_models.TrackType.VIDEO]
+        .contains(pub.kind)) {
       throw TrackSubscriptionExceptionEvent(
         participant: this,
         sid: trackSid,
@@ -145,7 +147,8 @@ class RemoteParticipant extends Participant {
 
     // unpublish any 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();
+    final removeSids =
+        trackPublications.keys.where((e) => !validSids.contains(e)).toSet();
     for (final sid in removeSids) {
       await unpublishTrack(sid, notify: true);
     }