fix: M1 M2 M6 M7 L3 L5 - subnet batching, scroll debounce, error logging, t...

Matthias Nott

2026-03-25 29f7a2c444d60fa155451d7e7f65cf637a1b7f41

 lib/screens/chat_screen.dart
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@@ -1,3 +1,4 @@
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+import 'dart:async';
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 import 'dart:convert';
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 import 'dart:io';
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@@ -63,6 +64,7 @@
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   final List<Map<String, dynamic>> _pendingMessages = [];
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   final Map<String, List<Message>> _catchUpPending = {};
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   List<String>? _cachedSessionOrder;
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+  Timer? _typingTimer;
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   @override
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   void initState() {
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@@ -132,10 +134,13 @@
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     }
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   }
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+  bool _isLoadingMore = false;
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   void _onScroll() {
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-    if (_scrollController.position.pixels >=
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-        _scrollController.position.maxScrollExtent - 100) {
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-      ref.read(messagesProvider.notifier).loadMore();
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+    if (!_isLoadingMore &&
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+        _scrollController.position.pixels >=
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+            _scrollController.position.maxScrollExtent - 100) {
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+      _isLoadingMore = true;
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+      ref.read(messagesProvider.notifier).loadMore().then((_) => _isLoadingMore = false);
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     }
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   }
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@@ -247,6 +252,15 @@
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         // Strict: only show typing for the ACTIVE session, ignore all others
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         if (activeId != null && typingSession == activeId) {
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           ref.read(isTypingProvider.notifier).state = typing;
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+          // Auto-clear after 10s in case typing_end is missed
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+          if (typing) {
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+            _typingTimer?.cancel();
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+            _typingTimer = Timer(const Duration(seconds: 10), () {
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+              if (mounted) ref.read(isTypingProvider.notifier).state = false;
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+            });
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+          } else {
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+            _typingTimer?.cancel();
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+          }
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         }
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       case 'typing_end':
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         final endSession = msg['sessionId'] as String?;