IMAP Improvements (#558)

* Fixing an issue where scrollviewer overrides a part of template in mail list. Adjusted zoomed out header grid's corner radius.

* IDLE implementation, imap synchronization strategies basics and condstore synchronization.

* Adding iCloud and Yahoo as special IMAP handling scenario.

* iCloud special imap handling.

* Support for killing synchronizers.

* Update privacy policy url.

* Batching condstore downloads into 50, using SORT extension for searches if supported.

* Bumping some nugets. More on the imap synchronizers.

* Delegating idle synchronizations to server to post-sync operations.

* Update mailkit to resolve qresync bug with iCloud.

* Fixing remote highest mode seq checks for qresync and condstore synchronizers.

* Yahoo custom settings.

* Bump google sdk package.

* Fixing the build issue....

* NRE on canceled token accounts during setup.

* Server crash handlers.

* Remove ARM32. Upgrade server to .NET 9.

* Fix icons for yahoo and apple.

* Fixed an issue where disabled folders causing an exception on forced sync.

* Remove smtp encoding constraint.

* Remove commented code.

* Fixing merge conflict

* Addressing double registrations for mailkit remote folder events in synchronizers.

* Making sure idle canceled result is not reported.

* Fixing custom imap server dialog opening.

* Fixing the issue with account creation making the previously selected account as selected as well.

* Fixing app close behavior and logging app close.

Wino.Core/Services/AuthenticationProvider.cs

@@ -28,7 +28,6 @@ namespace Wino.Core.Services
             return providerType switch
             {
                 MailProviderType.Outlook => new OutlookAuthenticator(_nativeAppService, _applicationConfiguration, _authenticatorConfig),
-                MailProviderType.Office365 => new Office365Authenticator(_nativeAppService, _applicationConfiguration, _authenticatorConfig),
                 MailProviderType.Gmail => new GmailAuthenticator(_authenticatorConfig),
                 _ => throw new ArgumentException(Translator.Exception_UnsupportedProvider),
             };

Wino.Core/Services/SynchronizerFactory.cs

@@ -13,6 +13,7 @@ namespace Wino.Core.Services
         private bool isInitialized = false;
 
         private readonly IAccountService _accountService;
+        private readonly IImapSynchronizationStrategyProvider _imapSynchronizationStrategyProvider;
         private readonly IApplicationConfiguration _applicationConfiguration;
         private readonly IOutlookChangeProcessor _outlookChangeProcessor;
         private readonly IGmailChangeProcessor _gmailChangeProcessor;
@@ -28,6 +29,7 @@ namespace Wino.Core.Services
                                    IOutlookAuthenticator outlookAuthenticator,
                                    IGmailAuthenticator gmailAuthenticator,
                                    IAccountService accountService,
+                                   IImapSynchronizationStrategyProvider imapSynchronizationStrategyProvider,
                                    IApplicationConfiguration applicationConfiguration)
         {
             _outlookChangeProcessor = outlookChangeProcessor;
@@ -36,6 +38,7 @@ namespace Wino.Core.Services
             _outlookAuthenticator = outlookAuthenticator;
             _gmailAuthenticator = gmailAuthenticator;
             _accountService = accountService;
+            _imapSynchronizationStrategyProvider = imapSynchronizationStrategyProvider;
             _applicationConfiguration = applicationConfiguration;
         }
 
@@ -51,6 +54,7 @@ namespace Wino.Core.Services
                 {
                     synchronizer = CreateNewSynchronizer(account);
 
+
                     return await GetAccountSynchronizerAsync(accountId);
                 }
             }
@@ -65,12 +69,11 @@ namespace Wino.Core.Services
             switch (providerType)
             {
                 case Domain.Enums.MailProviderType.Outlook:
-                case Domain.Enums.MailProviderType.Office365:
                     return new OutlookSynchronizer(mailAccount, _outlookAuthenticator, _outlookChangeProcessor);
                 case Domain.Enums.MailProviderType.Gmail:
                     return new GmailSynchronizer(mailAccount, _gmailAuthenticator, _gmailChangeProcessor);
                 case Domain.Enums.MailProviderType.IMAP4:
-                    return new ImapSynchronizer(mailAccount, _imapChangeProcessor, _applicationConfiguration);
+                    return new ImapSynchronizer(mailAccount, _imapChangeProcessor, _imapSynchronizationStrategyProvider, _applicationConfiguration);
                 default:
                     break;
             }
@@ -82,6 +85,12 @@ namespace Wino.Core.Services
         {
             var synchronizer = CreateIntegratorWithDefaultProcessor(account);
 
+            if (synchronizer is IImapSynchronizer imapSynchronizer)
+            {
+                // Start the idle client for IMAP synchronizer.
+                _ = imapSynchronizer.StartIdleClientAsync();
+            }
+
             synchronizerCache.Add(synchronizer);
 
             return synchronizer;
@@ -100,5 +109,18 @@ namespace Wino.Core.Services
 
             isInitialized = true;
         }
+
+        public async Task DeleteSynchronizerAsync(Guid accountId)
+        {
+            var synchronizer = synchronizerCache.Find(a => a.Account.Id == accountId);
+
+            if (synchronizer != null)
+            {
+                // Stop the current synchronization.
+                await synchronizer.KillSynchronizerAsync();
+
+                synchronizerCache.Remove(synchronizer);
+            }
+        }
     }
 }

Wino.Core/Services/ThreadingStrategyProvider.cs

@@ -23,7 +23,7 @@ namespace Wino.Core.Services
         {
             return mailProviderType switch
             {
-                MailProviderType.Outlook or MailProviderType.Office365 => _outlookThreadingStrategy,
+                MailProviderType.Outlook => _outlookThreadingStrategy,
                 MailProviderType.Gmail => _gmailThreadingStrategy,
                 _ => _imapThreadStrategy,
             };

Wino.Core/Services/WinoRequestProcessor.cs

@@ -163,8 +163,7 @@ namespace Wino.Core.Services
                 MailItemFolder archiveFolder = null;
 
                 bool shouldRequireArchiveFolder = mailItem.AssignedAccount.ProviderType == MailProviderType.Outlook
-                                                  || mailItem.AssignedAccount.ProviderType == MailProviderType.IMAP4
-                                                  || mailItem.AssignedAccount.ProviderType == MailProviderType.Office365;
+                                                  || mailItem.AssignedAccount.ProviderType == MailProviderType.IMAP4;
 
                 if (shouldRequireArchiveFolder)
                 {