From d39e236dfe146de65c2451dfe59abbcc9e8a3b4e Mon Sep 17 00:00:00 2001
From: Patrick Barron <barronpm@gmail.com>
Date: Sat, 15 Aug 2020 15:49:11 -0400
Subject: [PATCH] Migrates ServerEventNotifier.OnUserDeleted to IEventConsumer

---
 .../EntryPoints/ServerEventNotifier.cs        | 13 -------
 .../Consumers/Users/UserDeletedNotifier.cs    | 38 +++++++++++++++++++
 2 files changed, 38 insertions(+), 13 deletions(-)
 create mode 100644 Jellyfin.Server.Implementations/Events/Consumers/Users/UserDeletedNotifier.cs

diff --git a/Emby.Server.Implementations/EntryPoints/ServerEventNotifier.cs b/Emby.Server.Implementations/EntryPoints/ServerEventNotifier.cs
index d023591e1..1ec1f0868 100644
--- a/Emby.Server.Implementations/EntryPoints/ServerEventNotifier.cs
+++ b/Emby.Server.Implementations/EntryPoints/ServerEventNotifier.cs
@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Globalization;
 using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Data.Entities;
@@ -68,7 +67,6 @@ namespace Emby.Server.Implementations.EntryPoints
         /// <inheritdoc />
         public Task RunAsync()
         {
-            _userManager.OnUserDeleted += OnUserDeleted;
             _userManager.OnUserUpdated += OnUserUpdated;
 
             _appHost.HasPendingRestartChanged += OnHasPendingRestartChanged;
@@ -141,16 +139,6 @@ namespace Emby.Server.Implementations.EntryPoints
             await SendMessageToUserSession(e.Argument, "UserUpdated", dto).ConfigureAwait(false);
         }
 
-        /// <summary>
-        /// Users the manager_ user deleted.
-        /// </summary>
-        /// <param name="sender">The sender.</param>
-        /// <param name="e">The e.</param>
-        private async void OnUserDeleted(object sender, GenericEventArgs<User> e)
-        {
-            await SendMessageToUserSession(e.Argument, "UserDeleted", e.Argument.Id.ToString("N", CultureInfo.InvariantCulture)).ConfigureAwait(false);
-        }
-
         private async Task SendMessageToAdminSessions<T>(string name, T data)
         {
             try
@@ -192,7 +180,6 @@ namespace Emby.Server.Implementations.EntryPoints
         {
             if (dispose)
             {
-                _userManager.OnUserDeleted -= OnUserDeleted;
                 _userManager.OnUserUpdated -= OnUserUpdated;
 
                 _installationManager.PluginUninstalled -= OnPluginUninstalled;
diff --git a/Jellyfin.Server.Implementations/Events/Consumers/Users/UserDeletedNotifier.cs b/Jellyfin.Server.Implementations/Events/Consumers/Users/UserDeletedNotifier.cs
new file mode 100644
index 000000000..10367a939
--- /dev/null
+++ b/Jellyfin.Server.Implementations/Events/Consumers/Users/UserDeletedNotifier.cs
@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Threading;
+using System.Threading.Tasks;
+using Jellyfin.Data.Events.Users;
+using MediaBrowser.Controller.Events;
+using MediaBrowser.Controller.Session;
+
+namespace Jellyfin.Server.Implementations.Events.Consumers.Users
+{
+    /// <summary>
+    /// Notifies the user's sessions when a user is deleted.
+    /// </summary>
+    public class UserDeletedNotifier : IEventConsumer<UserDeletedEventArgs>
+    {
+        private readonly ISessionManager _sessionManager;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserDeletedNotifier"/> class.
+        /// </summary>
+        /// <param name="sessionManager">The session manager.</param>
+        public UserDeletedNotifier(ISessionManager sessionManager)
+        {
+            _sessionManager = sessionManager;
+        }
+
+        /// <inheritdoc />
+        public async Task OnEvent(UserDeletedEventArgs eventArgs)
+        {
+            await _sessionManager.SendMessageToUserSessions(
+                new List<Guid> { eventArgs.Argument.Id },
+                "UserDeleted",
+                eventArgs.Argument.Id.ToString("N", CultureInfo.InvariantCulture),
+                CancellationToken.None).ConfigureAwait(false);
+        }
+    }
+}