if room lastEvent has hidden word activity, hide the hidden tokens in the chat list item subtitle (#1317)

lib/pangea/utils/get_chat_list_item_subtitle.dart

@@ -2,8 +2,9 @@ import 'package:collection/collection.dart';
 import 'package:fluffychat/pangea/constants/language_constants.dart';
 import 'package:fluffychat/pangea/constants/model_keys.dart';
 import 'package:fluffychat/pangea/controllers/pangea_controller.dart';
+import 'package:fluffychat/pangea/enum/activity_type_enum.dart';
 import 'package:fluffychat/pangea/matrix_event_wrappers/pangea_message_event.dart';
-import 'package:fluffychat/pangea/models/space_model.dart';
+import 'package:fluffychat/pangea/models/pangea_token_model.dart';
 import 'package:fluffychat/pangea/utils/error_handler.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:matrix/matrix.dart';
@@ -24,6 +25,28 @@ class GetChatListItemSubtitle {
       event.type == EventTypes.SpaceChild ||
       event.type == EventTypes.SpaceParent;
 
+  String _constructTokens(
+    List<PangeaToken> tokens,
+    List<PangeaToken> hiddenTokens,
+  ) {
+    String result = "";
+    int currentPosition = 0;
+    for (final token in tokens) {
+      if (token.text.offset > currentPosition) {
+        result += " " * (token.text.offset - currentPosition);
+        currentPosition = token.text.offset;
+      }
+
+      if (hiddenTokens.contains(token)) {
+        result += "_" * token.text.length;
+      } else {
+        result += token.text.content;
+      }
+      currentPosition += token.text.length;
+    }
+    return result;
+  }
+
   Future<String> getSubtitle(
     L10n l10n,
     Event? event,
@@ -51,9 +74,7 @@ class GetChatListItemSubtitle {
       if (!pangeaController.languageController.languagesSet ||
           event.redacted ||
           event.type != EventTypes.Message ||
-          event.messageType != MessageTypes.Text ||
-          !pangeaController.permissionsController
-              .isToolEnabled(ToolSetting.immersionMode, event.room)) {
+          event.messageType != MessageTypes.Text) {
         return event.calcLocalizedBody(
           MatrixLocals(l10n),
           hideReply: true,
@@ -68,18 +89,48 @@ class GetChatListItemSubtitle {
       final PangeaMessageEvent pangeaMessageEvent = PangeaMessageEvent(
         event: event,
         timeline: timeline,
-        ownMessage: false,
+        ownMessage: event.senderId == event.room.client.userID,
       );
+
       final l2Code = pangeaController.languageController.activeL2Code();
       if (l2Code == null || l2Code == LanguageKeys.unknownLanguage) {
         return event.body;
       }
 
       final String? text =
-          (await pangeaMessageEvent.representationByLanguageGlobal(
-        langCode: l2Code,
-      ))
-              ?.text;
+          pangeaMessageEvent.messageDisplayRepresentation?.text;
+
+      final tokens =
+          await pangeaMessageEvent.messageDisplayRepresentation?.tokensGlobal(
+        event.senderId,
+        event.originServerTs,
+      );
+
+      if (tokens != null) {
+        final analyticsEntry = pangeaController.getAnalytics.perMessage.get(
+          tokens,
+          pangeaMessageEvent,
+        );
+
+        if (analyticsEntry?.nextActivity?.activityType ==
+            ActivityTypeEnum.hiddenWordListening) {
+          try {
+            return _constructTokens(
+              tokens,
+              analyticsEntry!.nextActivity!.tokens,
+            );
+          } catch (err, s) {
+            ErrorHandler.logError(
+              e: err,
+              s: s,
+              data: {
+                "tokens": tokens,
+                "analyticsEntry": analyticsEntry,
+              },
+            );
+          }
+        }
+      }
 
       final i18n = MatrixLocals(l10n);