Refactored all synchronizers to deal with some of the chronic issues.

2026-02-06 01:18:12 +01:00
parent d1425ca9ca
commit 071f1c9786
43 changed files with 2785 additions and 582 deletions
@@ -0,0 +1,67 @@
+using System.Threading.Tasks;
+using MailKit;
+using Serilog;
+using Wino.Core.Domain.Enums;
+using Wino.Core.Domain.Interfaces;
+using Wino.Core.Domain.Models.Synchronization;
+using Wino.Core.Integration.Processors;
+
+namespace Wino.Core.Synchronizers.Errors.Imap;
+
+/// <summary>
+/// Handles IMAP folder not found errors (FolderNotFoundException).
+/// Deletes the folder locally and allows sync to continue with other folders.
+/// </summary>
+public class ImapFolderNotFoundHandler : ISynchronizerErrorHandler
+{
+    private readonly ILogger _logger = Log.ForContext<ImapFolderNotFoundHandler>();
+    private readonly IImapChangeProcessor _imapChangeProcessor;
+
+    public ImapFolderNotFoundHandler(IImapChangeProcessor imapChangeProcessor)
+    {
+        _imapChangeProcessor = imapChangeProcessor;
+    }
+
+    public bool CanHandle(SynchronizerErrorContext error)
+    {
+        return error.Exception is FolderNotFoundException ||
+               error.ErrorCode == 404 ||
+               (error.ErrorMessage?.Contains("folder not found", System.StringComparison.OrdinalIgnoreCase) ?? false) ||
+               (error.ErrorMessage?.Contains("mailbox not found", System.StringComparison.OrdinalIgnoreCase) ?? false);
+    }
+
+    public async Task<bool> HandleAsync(SynchronizerErrorContext error)
+    {
+        _logger.Warning(error.Exception,
+            "IMAP folder not found for account {AccountName} ({AccountId}). Folder: {FolderName} ({FolderId}). Removing locally.",
+            error.Account?.Name, error.Account?.Id, error.FolderName, error.FolderId);
+
+        // Mark as recoverable - sync can continue with other folders
+        error.Severity = SynchronizerErrorSeverity.Recoverable;
+        error.Category = SynchronizerErrorCategory.ResourceNotFound;
+
+        // Try to delete the folder locally if we have the folder ID
+        if (error.FolderId.HasValue && error.Account != null)
+        {
+            try
+            {
+                // Get the folder's remote ID from the exception if available
+                var remoteId = error.Exception is FolderNotFoundException fnf ? fnf.FolderName : null;
+
+                if (!string.IsNullOrEmpty(remoteId))
+                {
+                    await _imapChangeProcessor.DeleteFolderAsync(error.Account.Id, remoteId).ConfigureAwait(false);
+                    _logger.Information("Successfully deleted local folder {FolderName} after server deletion.",
+                        error.FolderName);
+                }
+            }
+            catch (System.Exception ex)
+            {
+                _logger.Warning(ex, "Failed to delete local folder {FolderName} ({FolderId})",
+                    error.FolderName, error.FolderId);
+            }
+        }
+
+        return true;
+    }
+}