initial jump mechanism implemented

lib/controllers/room_chat.dart

@@ -23,7 +23,7 @@ class RoomChatController(final (String roomId, String? contextualEvent) info)
   Future<RoomChat?> build() async {
     final (roomId, eventId) = info;
     final client = ref.read(ClientController.provider.notifier);
-    final room = ref.watch(
+    final room = ref.read(
       RoomsController.provider.select((rooms) => rooms[roomId]),
     );
 
@@ -34,13 +34,8 @@ class RoomChatController(final (String roomId, String? contextualEvent) info)
       await ref.read(RoomsController.provider.notifier).addState(roomId, state);
     }
 
-    if (info.$2 == null ||
+    final timeline = room.timeline
-        room.events.values.map((e) => e.eventId).contains(info.$2)) {
+        .toEntryIList(compare: (a, b) => (a?.key ?? 0).compareTo(b?.key ?? 0))
-      return .new(
-        events: room.timeline
-            .toEntryIList(
-              compare: (a, b) => (a?.key ?? 0).compareTo(b?.key ?? 0),
-            )
         .map((element) => element.value)
         .toIList()
         .addAll(room.clientSticky)
@@ -60,17 +55,18 @@ class RoomChatController(final (String roomId, String? contextualEvent) info)
                 );
         })
         .nonNulls
-            .toIList(),
+        .toIList();
-        hasMore: room.hasMore,
+
-      );
+    if (info.$2 == null || timeline.map((e) => e.eventId).contains(info.$2)) {
-    }
+      ref.watch(RoomsController.provider.select((rooms) => rooms[roomId]));
-    {
+
+      return .new(timeline: timeline, hasMore: room.hasMore);
+    } else {
       final context = await client.getEventContext(
         .new(roomId: roomId, eventId: info.$2!, limit: 20),
       );
-
       return .new(
-        events: context.events,
+        timeline: context.before.add(context.event).addAll(context.after),
         hasMore: true,
         historicalData: .new(start: context.start, end: context.end),
       );

lib/helpers/hooks/chat_scroll.dart

@@ -32,8 +32,8 @@ final class ChatScroll({
     useEffect(() {
       if (anchorId.value == null) {
         if (controllerData case AsyncData(:final value?)
-            when value.events.isNotEmpty) {
+            when value.timeline.isNotEmpty) {
-          anchorId.value = value.events.last.eventId;
+          anchorId.value = value.timeline.last.eventId;
         }
       }
 
@@ -41,7 +41,7 @@ final class ChatScroll({
     }, [controllerData]);
 
     final ({IList<Event> history, IList<Event> live}) split = useMemoized(() {
-      final items = controllerData.value?.events;
+      final items = controllerData.value?.timeline;
       final anchor = anchorIdValue;
 
       if (items == null || anchor == null) {

lib/models/event_context.dart

@@ -8,7 +8,7 @@ part "event_context.g.dart";
 @Freezed(toJson: false, fromJson: false)
 @JsonSerializable()
 class const EventContext({
-  required final IList<Event> events,
+  required final Event event,
   required final IList<Event> before,
   required final IList<Event> after,
   required final String start,

lib/models/room_chat.dart

@@ -8,7 +8,7 @@ part "room_chat.g.dart";
 @Freezed(toJson: false, fromJson: false)
 @JsonSerializable()
 class const RoomChat({
-  required final IList<Event> events,
+  required final IList<Event> timeline,
   required final bool hasMore,
   final HistoricalData? historicalData,
 }) with _$RoomChat {