Toast notification navigations and some improvements for list view selection.

Wino.Mail.ViewModels/Collections/WinoMailCollection.cs

@@ -217,6 +217,42 @@ public class WinoMailCollection : ObservableRecipient, IRecipient<SelectedItemsC
         return !string.IsNullOrEmpty(threadId) && _threadIdToItemsMap.ContainsKey(threadId);
     }
 
+    /// <summary>
+    /// Finds a MailItemViewModel by its UniqueId, searching through all items including those inside threads.
+    /// </summary>
+    /// <param name="uniqueId">The UniqueId of the mail item to find.</param>
+    /// <returns>The MailItemViewModel if found, otherwise null.</returns>
+    public MailItemViewModel Find(Guid uniqueId)
+    {
+        // First check the cache for fast lookup
+        if (_uniqueIdToMailItemMap.TryGetValue(uniqueId, out var cachedMailItem))
+        {
+            return cachedMailItem;
+        }
+
+        // If not in cache, search through all groups
+        foreach (var group in _mailItemSource)
+        {
+            foreach (var item in group)
+            {
+                if (item is MailItemViewModel mailItem && mailItem.MailCopy.UniqueId == uniqueId)
+                {
+                    return mailItem;
+                }
+                else if (item is ThreadMailItemViewModel threadItem)
+                {
+                    var foundInThread = threadItem.ThreadEmails.FirstOrDefault(e => e.MailCopy.UniqueId == uniqueId);
+                    if (foundInThread != null)
+                    {
+                        return foundInThread;
+                    }
+                }
+            }
+        }
+
+        return null;
+    }
+
     private async Task InsertItemInternalAsync(object groupKey, IMailListItem mailItem)
     {
         UpdateUniqueIdHashes(mailItem, true);

Wino.Mail.ViewModels/Data/ThreadMailItemViewModel.cs

@@ -184,7 +184,19 @@ public partial class ThreadMailItemViewModel : ObservableRecipient, IMailListIte
         if (email.MailCopy.ThreadId != _threadId)
             throw new ArgumentException($"Email ThreadId '{email.MailCopy.ThreadId}' does not match expander ThreadId '{_threadId}'");
 
-        ThreadEmails.Add(email);
+        // Insert email in sorted order by CreationDate (newest first, oldest last)
+        var insertIndex = 0;
+        for (int i = 0; i < ThreadEmails.Count; i++)
+        {
+            if (ThreadEmails[i].MailCopy.CreationDate < email.MailCopy.CreationDate)
+            {
+                insertIndex = i;
+                break;
+            }
+            insertIndex = i + 1;
+        }
+
+        ThreadEmails.Insert(insertIndex, email);
         // Reassign to trigger property change notifications
         ThreadEmails = ThreadEmails;
     }

Wino.Mail.ViewModels/MailListPageViewModel.cs

@@ -72,6 +72,7 @@ public partial class MailListPageViewModel : MailBaseViewModel,
     private readonly IAccountService _accountService;
     private readonly IMailDialogService _mailDialogService;
     private readonly IMailService _mailService;
+    private readonly INotificationBuilder _notificationBuilder;
     private readonly IFolderService _folderService;
     private readonly IContextMenuItemService _contextMenuItemService;
     private readonly IWinoRequestDelegator _winoRequestDelegator;
@@ -155,6 +156,7 @@ public partial class MailListPageViewModel : MailBaseViewModel,
                                  IMailDialogService mailDialogService,
                                  IMailService mailService,
                                  IStatePersistanceService statePersistenceService,
+                                 INotificationBuilder notificationBuilder,
                                  IFolderService folderService,
                                  IContextMenuItemService contextMenuItemService,
                                  IWinoRequestDelegator winoRequestDelegator,
@@ -175,6 +177,7 @@ public partial class MailListPageViewModel : MailBaseViewModel,
         PreferencesService = preferencesService;
         ThemeService = themeService;
         StatePersistenceService = statePersistenceService;
+        _notificationBuilder = notificationBuilder;
         NavigationService = navigationService;
 
         SelectedFilterOption = FilterOptions[0];
@@ -468,6 +471,10 @@ public partial class MailListPageViewModel : MailBaseViewModel,
     [RelayCommand]
     private void SyncFolder()
     {
+        var mails = MailCollection.SelectedItems;
+        _notificationBuilder.CreateNotificationsAsync(mails.Select(a => a.MailCopy));
+
+        return;
         if (!CanSynchronize) return;
 
         // Only synchronize listed folders.
@@ -710,7 +717,7 @@ public partial class MailListPageViewModel : MailBaseViewModel,
             await MailCollection.RemoveAsync(removedMail);
 
             if (nextItem != null)
-                WeakReferenceMessenger.Default.Send(new SelectMailItemContainerEvent(nextItem, ScrollToItem: true));
+                WeakReferenceMessenger.Default.Send(new SelectMailItemContainerEvent(nextItem.UniqueId, ScrollToItem: true));
             else if (isDeletedMailSelected)
             {
                 // There are no next item to select, but we removed the last item which was selected.
@@ -1022,30 +1029,9 @@ public partial class MailListPageViewModel : MailBaseViewModel,
 
     void IRecipient<MailItemNavigationRequested>.Receive(MailItemNavigationRequested message)
     {
-        Debug.WriteLine($"Mail item navigation requested");
-        // Find mail item and add to selected items.
+        // TODO: Remove this.
 
-        MailItemViewModel navigatingMailItem = null;
-        ThreadMailItemViewModel threadMailItemViewModel = null;
-
-        for (int i = 0; i < 3; i++)
-        {
-            var mailContainer = MailCollection.GetMailItemContainer(message.UniqueMailId);
-
-            if (mailContainer != null)
-            {
-                navigatingMailItem = mailContainer.ItemViewModel;
-                threadMailItemViewModel = mailContainer.ThreadViewModel;
-
-                break;
-            }
-        }
-
-        if (threadMailItemViewModel != null)
-            threadMailItemViewModel.IsThreadExpanded = true;
-
-        if (navigatingMailItem != null)
-            WeakReferenceMessenger.Default.Send(new SelectMailItemContainerEvent(navigatingMailItem, message.ScrollToItem));
+        WeakReferenceMessenger.Default.Send(new SelectMailItemContainerEvent(message.UniqueMailId, message.ScrollToItem));
     }
 
     #endregion

Wino.Mail.ViewModels/Messages/SelectMailItemContainerEvent.cs

@@ -1,8 +1,8 @@
-using Wino.Mail.ViewModels.Data;
+using System;
 
 namespace Wino.Mail.ViewModels.Messages;
 
 /// <summary>
 /// When listing view model manipulated the selected mail container in the UI.
 /// </summary>
-public record SelectMailItemContainerEvent(MailItemViewModel SelectedMailViewModel, bool ScrollToItem = false);
+public record SelectMailItemContainerEvent(Guid MailUniqueId, bool ScrollToItem = false);