Debug logs in fetcher/sender, fixed error in HS

Core/Core.cs

@@ -160,7 +160,9 @@ namespace Kruzya.TelegramBot.Core
 
         private void HookAppDomain()
         {
-            AppDomain.CurrentDomain.AssemblyResolve += delegate(object? sender, ResolveEventArgs args)
+            var appDomain = AppDomain.CurrentDomain;
+
+            appDomain.AssemblyResolve += delegate(object? sender, ResolveEventArgs args)
             {
                 var basePath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
                 string assemblyPath = Path.Combine(basePath, new AssemblyName(args.Name).Name + ".dll");

Core/Service/AbstractTimedHostedService.cs

@@ -3,13 +3,14 @@ using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using BotFramework;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Telegram.Bot.Exceptions;
 using Telegram.Bot.Types;
 
 namespace Kruzya.TelegramBot.Core.Service
 {
-    public abstract class AbstractTimedHostedService
+    public abstract class AbstractTimedHostedService : IHostedService, IDisposable
     {
         private Timer _timer;
         

modules/RichSiteSummary/RichSiteSummary.cs

@@ -30,7 +30,9 @@ namespace Kruzya.TelegramBot.RichSiteSummary
             services.AddQueue<UserMessage>()
                 .AddQueue<UserUnsubscribe>();
 
-            services.AddHostedService<RssFetch>();
+            services.AddHostedService<RssFetch>()
+                .AddHostedService<Unsubscriber>()
+                .AddHostedService<MessageSender>();
         }
     }
 }

modules/RichSiteSummary/Service/MessageSender.cs

@@ -36,6 +36,7 @@ namespace Kruzya.TelegramBot.RichSiteSummary.Service
                 return;
             }
 
+            _logger.LogDebug($"Message for {message.ChatId.Identifier} dequeued.");
             try
             {
                 await _bot.BotClient.SendTextMessageAsync(message.ChatId, message.Text, message.ParseMode,
@@ -43,6 +44,7 @@ namespace Kruzya.TelegramBot.RichSiteSummary.Service
             }
             catch (ApiRequestException e)
             {
+                _logger.LogDebug($"Message for {message.ChatId.Identifier} is failed: {e.Message}.");
                 if (!e.Message.Contains("bot was blocked by user"))
                 {
                     ReEnqueue(message, e, message.ChatId); // looks like a network issue
@@ -58,6 +60,7 @@ namespace Kruzya.TelegramBot.RichSiteSummary.Service
             }
             catch (Exception e)
             {
+                _logger.LogDebug($"Message for {message.ChatId.Identifier} is failed: {e.Message}.");
                 ReEnqueue(message, e);
             }
         }

modules/RichSiteSummary/Service/RssFetch.cs

@@ -156,6 +156,7 @@ namespace Kruzya.TelegramBot.RichSiteSummary.Service
                         };
 
                         _queue.Enqueue(message);
+                        _logger.LogDebug($"Enqueued message for {subscriber.SubscriberId}");
                     }
                 }
             }