handle events_decrypted

lib/controllers/gomuks_listener.dart

@@ -17,6 +17,7 @@ import "package:nexus/helpers/extensions/gomuks_buffer.dart";
 import "package:nexus/main.dart";
 import "package:ffi/ffi.dart";
 import "package:nexus/models/event.dart";
+import "package:nexus/models/events_decrypted.dart";
 import "package:nexus/models/sync_data.dart";
 import "package:nexus/src/third_party/gomuks.g.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
@@ -60,6 +61,29 @@ class GomuksListenerController extends AsyncNotifier<void> {
                         event.roomId: .new(events: .new({event.rowId: event})),
                       }),
                     );
+              case "events_decrypted":
+                final decrypted = EventsDecrypted.fromJson(decodedMuksEvent);
+                final metadata = ref
+                    .read(RoomsController.provider)[decrypted.roomId]
+                    ?.metadata;
+
+                ref
+                    .read(RoomsController.provider.notifier)
+                    .update(
+                      .new({
+                        decrypted.roomId: .new(
+                          events: decrypted.events,
+                          metadata: metadata?.copyWith(
+                            previewEventRowID:
+                                decrypted.previewEventRowID ??
+                                metadata.previewEventRowID,
+                            sortingTimestamp:
+                                decrypted.sortingTimestamp ??
+                                metadata.sortingTimestamp,
+                          ),
+                        ),
+                      }),
+                    );
               case "sync_complete":
                 final syncData = SyncData.fromJson(decodedMuksEvent);
                 final roomProvider = RoomsController.provider;

lib/models/events_decrypted.dart

@@ -0,0 +1,23 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:freezed_annotation/freezed_annotation.dart";
+import "package:nexus/models/epoch_date_time_converter.dart";
+import "package:nexus/models/event.dart";
+import "package:nexus/models/room.dart";
+
+part "events_decrypted.freezed.dart";
+part "events_decrypted.g.dart";
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable(createToJson: false)
+class const EventsDecrypted({
+  required final String roomId,
+  @JsonKey(name: "preview_event_rowid") final int? previewEventRowID,
+  @EpochDateTimeConverter() final DateTime? sortingTimestamp,
+
+  /// [events] is an IMap of eventRowId to event
+  @JsonKey(fromJson: Room.eventsJsonToIMap)
+  required final IMap<int, Event> events,
+}) with _$EventsDecrypted {
+  factory EventsDecrypted.fromJson(Map<String, Object?> json) =>
+      _$EventsDecryptedFromJson(json);
+}