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 +1,45 @@
+using System;
+using System.IO;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using MailKit;
+using Serilog;
+using Wino.Core.Domain.Enums;
+using Wino.Core.Domain.Interfaces;
+using Wino.Core.Domain.Models.Synchronization;
+
+namespace Wino.Core.Synchronizers.Errors.Imap;
+
+/// <summary>
+/// Handles IMAP connection loss errors (IOException, SocketException, ServiceNotConnectedException).
+/// Marks the error as transient for retry with backoff.
+/// </summary>
+public class ImapConnectionLostHandler : ISynchronizerErrorHandler
+{
+    private readonly ILogger _logger = Log.ForContext<ImapConnectionLostHandler>();
+
+    public bool CanHandle(SynchronizerErrorContext error)
+    {
+        return error.Exception is IOException ||
+               error.Exception is SocketException ||
+               error.Exception is ServiceNotConnectedException ||
+               error.Exception?.InnerException is IOException ||
+               error.Exception?.InnerException is SocketException;
+    }
+
+    public Task<bool> HandleAsync(SynchronizerErrorContext error)
+    {
+        _logger.Warning(error.Exception,
+            "IMAP connection lost for account {AccountName} ({AccountId}). Folder: {FolderName}. Operation: {Operation}. Will retry.",
+            error.Account?.Name, error.Account?.Id, error.FolderName ?? "N/A", error.OperationType ?? "N/A");
+
+        // Mark as transient - the RetryExecutor will handle the retry logic
+        error.Severity = SynchronizerErrorSeverity.Transient;
+        error.Category = SynchronizerErrorCategory.Network;
+
+        // Suggest a reasonable retry delay for connection issues
+        error.RetryDelay = TimeSpan.FromSeconds(2);
+
+        return Task.FromResult(true);
+    }
+}