add getEventContext to ClientController

lib/controllers/client.dart

@@ -12,6 +12,7 @@ import "package:nexus/helpers/extensions/gomuks_buffer.dart";
 import "package:nexus/models/capabilities.dart";
 import "package:nexus/models/content/message.dart";
 import "package:nexus/models/event.dart";
+import "package:nexus/models/event_context.dart";
 import "package:nexus/models/gomuks_config.dart";
 import "package:nexus/models/oauth_auth_code_response.dart";
 import "package:nexus/models/open_graph_data.dart";
@@ -19,6 +20,7 @@ import "package:nexus/models/paginate.dart";
 import "package:nexus/models/requests/deregister_pusher.dart";
 import "package:nexus/models/requests/download_media.dart";
 import "package:nexus/models/requests/get_event.dart";
+import "package:nexus/models/requests/get_event_context.dart";
 import "package:nexus/models/requests/get_mentions.dart";
 import "package:nexus/models/requests/get_related_events.dart";
 import "package:nexus/models/requests/get_room_state.dart";
@@ -227,6 +229,9 @@ class ClientController extends AsyncNotifier<int> {
   Future<Paginate> paginate(PaginateRequest request) async =>
       .fromJson(await _sendCommand("paginate", request.toJson()));
 
+  Future<EventContext> getEventContext(GetEventContextRequest request) async =>
+      .fromJson(await _sendCommand("get_event_context", request.toJson()));
+
   Future<ProfileResponse> getProfile(String userId) async {
     try {
       return .fromJson(await _sendCommand("get_profile", {"user_id": userId}));

lib/models/event_context.dart

@@ -0,0 +1,22 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:freezed_annotation/freezed_annotation.dart";
+import "package:nexus/models/event.dart";
+
+part "event_context.freezed.dart";
+part "event_context.g.dart";
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const EventContext({
+  required final IList<Event> events,
+  required final IList<Event> before,
+  required final IList<Event> after,
+  required final String start,
+  required final String end,
+  final IList<Event> relatedEvents = const IList.empty(),
+}) with _$EventContext {
+  Map<String, Object?> toJson() => _$EventContextToJson(this);
+
+  factory EventContext.fromJson(Map<String, Object?> json) =>
+      _$EventContextFromJson(json);
+}

lib/models/requests/get_event_context.dart

@@ -0,0 +1,17 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+
+part "get_event_context.freezed.dart";
+part "get_event_context.g.dart";
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const GetEventContextRequest({
+  required final String roomId,
+  required final String eventId,
+  required final int limit,
+}) with _$GetEventContextRequest {
+  Map<String, Object?> toJson() => _$GetEventContextRequestToJson(this);
+
+  factory GetEventContextRequest.fromJson(Map<String, Object?> json) =>
+      _$GetEventContextRequestFromJson(json);
+}