Delegating idle synchronizations to server to post-sync operations.

Wino.Core.UWP/Services/WinoServerConnectionManager.cs

@@ -18,6 +18,7 @@ using Wino.Core.Integration.Json;
 using Wino.Messaging;
 using Wino.Messaging.Client.Connection;
 using Wino.Messaging.Enums;
+using Wino.Messaging.Server;
 using Wino.Messaging.UI;
 
 namespace Wino.Core.UWP.Services
@@ -256,6 +257,9 @@ namespace Wino.Core.UWP.Services
                 case nameof(CopyAuthURLRequested):
                     WeakReferenceMessenger.Default.Send(JsonSerializer.Deserialize<CopyAuthURLRequested>(messageJson));
                     break;
+                case nameof(NewMailSynchronizationRequested):
+                    WeakReferenceMessenger.Default.Send(JsonSerializer.Deserialize<NewMailSynchronizationRequested>(messageJson));
+                    break;
                 default:
                     throw new Exception("Invalid data type name passed to client.");
             }

Wino.Core/Synchronizers/ImapSync/UidBasedSynchronizer.cs

@@ -71,7 +71,7 @@ namespace Wino.Core.Synchronizers.ImapSync
             return downloadedMessageIds;
         }
 
-        internal override async Task<IList<UniqueId>> GetChangedUidsAsync(IImapClient client, MailItemFolder localFolder, IMailFolder remoteFolder, IImapSynchronizer synchronizer, CancellationToken cancellationToken = default)
+        internal override Task<IList<UniqueId>> GetChangedUidsAsync(IImapClient client, MailItemFolder localFolder, IMailFolder remoteFolder, IImapSynchronizer synchronizer, CancellationToken cancellationToken = default)
         {
             throw new NotImplementedException();
         }

Wino.Core/Synchronizers/ImapSynchronizer.cs

@@ -25,6 +25,7 @@ using Wino.Core.Integration.Processors;
 using Wino.Core.Requests.Bundles;
 using Wino.Core.Requests.Folder;
 using Wino.Core.Requests.Mail;
+using Wino.Messaging.Server;
 using Wino.Messaging.UI;
 using Wino.Services.Extensions;
 
@@ -716,6 +717,8 @@ namespace Wino.Core.Synchronizers.Mail
                 inboxFolder.MessageExpunged += IdleNotificationTriggered;
                 inboxFolder.MessagesVanished += IdleNotificationTriggered;
 
+                Log.Debug("Starting an idle client for {Name}", Account.Name);
+
                 await client.IdleAsync(idleDoneTokenSource.Token, idleCancellationTokenSource.Token);
             }
             catch (ImapProtocolException protocolException)
@@ -788,7 +791,7 @@ namespace Wino.Core.Synchronizers.Mail
                 Type = MailSynchronizationType.IMAPIdle
             };
 
-            _ = SynchronizeMailsAsync(options);
+            WeakReferenceMessenger.Default.Send(new NewMailSynchronizationRequested(options, SynchronizationSource.Client));
         }
 
         private void IdleNotificationTriggered(object sender, EventArgs e)

Wino.Messages/Server/NewSynchronizationRequested.cs

@@ -8,7 +8,7 @@ namespace Wino.Messaging.Server
     /// Triggers a new mail synchronization if possible.
     /// </summary>
     /// <param name="Options">Options for synchronization.</param>
-    public record NewMailSynchronizationRequested(MailSynchronizationOptions Options, SynchronizationSource Source) : IClientMessage;
+    public record NewMailSynchronizationRequested(MailSynchronizationOptions Options, SynchronizationSource Source) : IClientMessage, IUIMessage;
 
     /// <summary>
     /// Triggers a new calendar synchronization if possible.

Wino.Server/ServerContext.cs

@@ -43,7 +43,8 @@ namespace Wino.Server
         IRecipient<ServerTerminationModeChanged>,
         IRecipient<AccountSynchronizationProgressUpdatedMessage>,
         IRecipient<AccountFolderConfigurationUpdated>,
-        IRecipient<CopyAuthURLRequested>
+        IRecipient<CopyAuthURLRequested>,
+        IRecipient<NewMailSynchronizationRequested>
     {
         private readonly System.Timers.Timer _timer;
         private static object connectionLock = new object();
@@ -141,6 +142,7 @@ namespace Wino.Server
         public async void Receive(AccountFolderConfigurationUpdated message) => await SendMessageAsync(MessageType.UIMessage, message);
 
         public async void Receive(CopyAuthURLRequested message) => await SendMessageAsync(MessageType.UIMessage, message);
+        public async void Receive(NewMailSynchronizationRequested message) => await SendMessageAsync(MessageType.UIMessage, message);
 
         #endregion