Implemented cache reset for Gmail history id expiration. (#581)

Wino.Core.Domain/Enums/AccountCacheResetReason.cs

@@ -0,0 +1,7 @@
+namespace Wino.Core.Domain.Enums;
+
+public enum AccountCacheResetReason
+{
+    AccountRemoval,
+    ExpiredCache
+}

Wino.Core.Domain/Interfaces/IAccountService.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Threading.Tasks;
 using Wino.Core.Domain.Entities.Mail;
 using Wino.Core.Domain.Entities.Shared;
+using Wino.Core.Domain.Enums;
 using Wino.Core.Domain.Models.Accounts;
 
 namespace Wino.Core.Domain.Interfaces;
@@ -156,4 +157,11 @@ public interface IAccountService
     /// <returns>Primary alias for the account.</returns>
     Task<MailAccountAlias> GetPrimaryAccountAliasAsync(Guid accountId);
     Task<bool> IsAccountFocusedEnabledAsync(Guid accountId);
+
+    /// <summary>
+    /// Deletes mail cache in the database for the given account.
+    /// </summary>
+    /// <param name="accountId">Account id.</param>
+    /// <param name="AccountCacheResetReason">Reason for the cache reset.</param>
+    Task DeleteAccountMailCacheAsync(Guid accountId, AccountCacheResetReason accountCacheResetReason);
 }

Wino.Core.Domain/Interfaces/IMailService.cs

@@ -135,4 +135,10 @@ public interface IMailService
     /// <param name="package">Mail creation package.</param>
     /// <returns></returns>
     Task CreateMailRawAsync(MailAccount account, MailItemFolder mailItemFolder, NewMailItemPackage package);
+
+    /// <summary>
+    /// Checks whether the account has any draft mail locally.
+    /// </summary>
+    /// <param name="accountId">Account id.</param>
+    Task<bool> HasAccountAnyDraftAsync(Guid accountId);
 }

Wino.Core.Domain/Interfaces/IMimeFileService.cs

@@ -66,4 +66,10 @@ public interface IMimeFileService
     /// <param name="mimeLocalPath">File path that physical MimeMessage is located.</param>
     /// <param name="options">Rendering options</param>
     MailRenderModel GetMailRenderModel(MimeMessage message, string mimeLocalPath, MailRenderingOptions options = null);
+
+    /// <summary>
+    /// Deletes every file in the mime cache for the given account.
+    /// </summary>
+    /// <param name="accountId">Account id.</param>
+    Task DeleteUserMimeCacheAsync(Guid accountId);
 }

Wino.Core.Domain/Translations/en_US/resources.json

@@ -4,6 +4,8 @@
     "AccountAlias_Column_Verified": "Verified",
     "AccountAlias_Disclaimer_FirstLine": "Wino can only import aliases for your Gmail accounts.",
     "AccountAlias_Disclaimer_SecondLine": "If you want to use aliases for your Outlook or IMAP account, please add them yourself.",
+    "AccountCacheReset_Title": "Account Cache Reset",
+    "AccountCacheReset_Message": "This account requires full re-sychronization to continue working. Please wait while Wino re-synchronizes your messages...",
     "AccountContactNameYou": "You",
     "AccountCreationDialog_Completed": "all done",
     "AccountCreationDialog_FetchingEvents": "Fetching calendar events.",