From 4e330a2455bd8994bb39aa1182785d80cb45e51e Mon Sep 17 00:00:00 2001
From: Sergey Nazarov <me@nazarovsa.com>
Date: Sat, 3 Aug 2024 15:13:03 +0300
Subject: [PATCH] Add exception handling to MessageDispatcherHandler

---
 .../MessageDispatcher/MessageDispatcherHandler.cs    | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Nocr.TelegramClient.AppServices/Bots/MessageDispatcher/MessageDispatcherHandler.cs b/src/Nocr.TelegramClient.AppServices/Bots/MessageDispatcher/MessageDispatcherHandler.cs
index 64e847e..1cdcf5c 100644
--- a/src/Nocr.TelegramClient.AppServices/Bots/MessageDispatcher/MessageDispatcherHandler.cs
+++ b/src/Nocr.TelegramClient.AppServices/Bots/MessageDispatcher/MessageDispatcherHandler.cs
@@ -1,6 +1,7 @@
 using Insight.TelegramBot;
 using Insight.TelegramBot.Models;
 using Microsoft.Extensions.Logging;
+using Telegram.Bot.Exceptions;
 using Telegram.Bot.Types;
 
 namespace Nocr.TelegramClient.AppServices.Bots.MessageDispatcher;
@@ -25,7 +26,16 @@ public sealed class MessageDispatcherHandler : IMessageDispatcherHandler
             switch (message)
             {
                 case TextMessage tm:
-                    await _bot.SendMessageAsync(tm, cancellationToken);
+                    try
+                    {
+                        await _bot.SendMessageAsync(tm, cancellationToken);
+                    }
+                    catch (Exception ex) when (ex is ApiRequestException &&
+                                               ex.Message.Equals("Forbidden: bot was blocked by the user",
+                                                   StringComparison.OrdinalIgnoreCase))
+                    {
+                        _logger.LogWarning(ex, "Failed to deliver message due bot was blocked by the user [{ChatId}]", tm.ChatId);
+                    }
                     break;
                 case AnimationMessage am:
                     await _bot.SendAnimationAsync(am, cancellationToken);