From 2e6f46f283b30e412ecdd224bb2660eabc4440be Mon Sep 17 00:00:00 2001
From: korecko <katulik137@gmail.com>
Date: Wed, 1 Jul 2026 11:57:02 +0200
Subject: [PATCH 1/2] fix: avoid JS interop errors during board teardown

---
 Ticky.Web/Components/Pages/BoardView.razor | 32 +++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/Ticky.Web/Components/Pages/BoardView.razor b/Ticky.Web/Components/Pages/BoardView.razor
index 6f1b216..182495d 100644
--- a/Ticky.Web/Components/Pages/BoardView.razor
+++ b/Ticky.Web/Components/Pages/BoardView.razor
@@ -8,6 +8,7 @@
 @inject ILogger<BoardView> _logger
 @inject IHttpContextAccessor _httpContextAccessor
 @inherits NotifiableBase
+@implements IAsyncDisposable
 
 @if (_board is not null)
 {
@@ -208,6 +209,7 @@
 
     private HubConnection? _hubConnection;
     private HashSet<string> _expandedSections = new();
+    private bool _isDisposed;
 
     protected override void OnParametersSet()
     {
@@ -341,6 +343,9 @@
         {
             await _protectedLocalStorage.SetAsync(Constants.StorageKeys.BoardPreferences, _preferences);
         }
+        catch (JSDisconnectedException)
+        {
+        }
         catch (Exception ex)
         {
             _logger.LogError(ex, "Failed to save board preferences.");
@@ -497,6 +502,9 @@
 
     private async Task LoadCardsAsync()
     {
+        if (_isDisposed)
+            return;
+
         ArgumentNullException.ThrowIfNull(_board);
 
         using var db = _dbContextFactory.CreateDbContext();
@@ -534,18 +542,41 @@
 
         _cards = await queryableCards.ToListAsync();
 
+        if (_isDisposed)
+            return;
+
         await InvokeAsync(StateHasChanged);
 
         try
         {
             await _protectedLocalStorage.SetAsync(FILTERS_SCOPED_KEY, _filterModel);
         }
+        catch (JSDisconnectedException)
+        {
+        }
         catch (Exception ex)
         {
             _logger.LogError(ex, "Failed to save filter preferences.");
         }
     }
 
+    public async ValueTask DisposeAsync()
+    {
+        _isDisposed = true;
+
+        if (_hubConnection is null)
+            return;
+
+        try
+        {
+            await _hubConnection.DisposeAsync();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogDebug(ex, "Failed to dispose board hub connection.");
+        }
+    }
+
     private bool IsAdmin()
     {
         if(_board is null)
@@ -590,4 +621,3 @@
 
     private bool IsExpanded(string id) => _expandedSections.Contains(id);
 }
-

From 00d8edcd0b3f2331b4650d7a9d504405af874aa0 Mon Sep 17 00:00:00 2001
From: korecko <katulik137@gmail.com>
Date: Wed, 1 Jul 2026 12:14:44 +0200
Subject: [PATCH 2/2] fix: harden BoardView disposal races

---
 Ticky.Web/Components/Pages/BoardView.razor | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Ticky.Web/Components/Pages/BoardView.razor b/Ticky.Web/Components/Pages/BoardView.razor
index 182495d..1b2724d 100644
--- a/Ticky.Web/Components/Pages/BoardView.razor
+++ b/Ticky.Web/Components/Pages/BoardView.razor
@@ -268,6 +268,10 @@
             var boardPreferences = await _protectedLocalStorage.GetAsync<BoardPreferencesModel>(Constants.StorageKeys.BoardPreferences);
             _preferences = (boardPreferences.Success ? boardPreferences.Value : new()) ?? new();
         }
+        catch (JSDisconnectedException)
+        {
+            _preferences = new();
+        }
         catch (CryptographicException)
         {
             _preferences = new();
@@ -278,6 +282,10 @@
             var filterPreferences = await _protectedLocalStorage.GetAsync<FilterCardsModel>(FILTERS_SCOPED_KEY);
             _filterModel = (filterPreferences.Success ? filterPreferences.Value : new()) ?? new();
         }
+        catch (JSDisconnectedException)
+        {
+            _filterModel = new();
+        }
         catch(CryptographicException)
         {
             _filterModel = new();
@@ -330,6 +338,9 @@
             await _hubConnection.SendAsync(nameof(UpdateHub.SubscribeBoard), Id);
         } catch(Exception ex)
         {
+            if (_isDisposed)
+                return;
+
             _logger.LogError(ex, "Failed to start hub connection or subscribe to board {BoardId}", Id);
             MainLayout.RunNotification(new("Real-time updates unavailable. Please refresh the page.", NotificationType.Fail));
         }
@@ -497,6 +508,9 @@
 
         await LoadCardsAsync();
 
+        if (_isDisposed)
+            return;
+
         await InvokeAsync(StateHasChanged);
     }