join online notification resolver fix.

Wino.Core.Domain/Constants.cs

@@ -18,6 +18,7 @@ public static class Constants
     public const string ToastCalendarItemIdKey = nameof(ToastCalendarItemIdKey);
     public const string ToastCalendarActionKey = nameof(ToastCalendarActionKey);
     public const string ToastCalendarNavigateAction = nameof(ToastCalendarNavigateAction);
+    public const string ToastCalendarJoinOnlineAction = nameof(ToastCalendarJoinOnlineAction);
     public const string ToastCalendarSnoozeAction = nameof(ToastCalendarSnoozeAction);
     public const string ToastCalendarSnoozeDurationInputId = nameof(ToastCalendarSnoozeDurationInputId);
     public const string ToastModeKey = nameof(ToastModeKey);

Wino.Mail.WinUI/App.xaml.cs

@@ -593,6 +593,12 @@ public partial class App : WinoApplication,
                 await HandleCalendarToastSnoozeAsync(userInput, calendarItemId);
                 return;
             }
+
+            if (calendarAction == Constants.ToastCalendarJoinOnlineAction)
+            {
+                await HandleCalendarToastJoinOnlineAsync(calendarItemId);
+                return;
+            }
         }
 
         // Check if this is a navigation toast (user clicked the notification).
@@ -711,6 +717,21 @@ public partial class App : WinoApplication,
         await calendarService.SnoozeCalendarItemAsync(calendarItemId, snoozedUntilLocal);
     }
 
+    private async Task HandleCalendarToastJoinOnlineAsync(Guid calendarItemId)
+    {
+        var calendarService = Services.GetRequiredService<ICalendarService>();
+        var nativeAppService = Services.GetRequiredService<INativeAppService>();
+
+        var calendarItem = await calendarService.GetCalendarItemAsync(calendarItemId);
+        if (calendarItem == null ||
+            !Uri.TryCreate(calendarItem.HtmlLink, UriKind.Absolute, out var joinUri))
+        {
+            return;
+        }
+
+        await nativeAppService.LaunchUriAsync(joinUri);
+    }
+
     private bool TryGetSnoozeDurationMinutes(IDictionary<string, string>? userInput, out int snoozeDurationMinutes)
     {
         snoozeDurationMinutes = _preferencesService?.DefaultSnoozeDurationInMinutes ?? 0;

Wino.Mail.WinUI/Services/NotificationBuilder.cs

@@ -246,11 +246,13 @@ public class NotificationBuilder : INotificationBuilder
             .AddArgument(Constants.ToastCalendarItemIdKey, calendarItem.Id.ToString())
             .AddArgument(Constants.ToastModeKey, Constants.ToastModeCalendar));
 
-        if (Uri.TryCreate(calendarItem.HtmlLink, UriKind.Absolute, out var joinUri))
+        if (Uri.TryCreate(calendarItem.HtmlLink, UriKind.Absolute, out _))
         {
             builder.AddButton(new AppNotificationButton(Translator.CalendarEventDetails_JoinOnline)
                 .SetIcon(GetNotificationIconUri("calendar-join"))
-                .SetInvokeUri(joinUri));
+                .AddArgument(Constants.ToastCalendarActionKey, Constants.ToastCalendarJoinOnlineAction)
+                .AddArgument(Constants.ToastCalendarItemIdKey, calendarItem.Id.ToString())
+                .AddArgument(Constants.ToastModeKey, Constants.ToastModeCalendar));
         }
 
         var tag = $"calendar-reminder-{calendarItem.Id:N}-{reminderDurationInSeconds}";