lots of stuff

lib/controllers/members_controller.dart

@@ -0,0 +1,20 @@
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:matrix/matrix.dart";
+
+class MembersController extends AsyncNotifier<List<MatrixEvent>> {
+  final Room room;
+  MembersController(this.room);
+
+  @override
+  Future<List<MatrixEvent>> build() async =>
+      (await room.client.getMembersByRoom(
+        room.id,
+        notMembership: Membership.leave,
+      )) ??
+      [];
+
+  static final provider =
+      AsyncNotifierProvider.family<MembersController, List<MatrixEvent>, Room>(
+        MembersController.new,
+      );
+}