ChatBot/ChatBot/Services/Telegram/TelegramErrorHandler.cs

using Microsoft.Extensions.Logging;
using Telegram.Bot;
using Telegram.Bot.Exceptions;

namespace ChatBot.Services.Telegram
{
    /// <summary>
    /// Обработчик ошибок Telegram бота
    /// </summary>
    public class TelegramErrorHandler : ITelegramErrorHandler
    {
        private readonly ILogger<TelegramErrorHandler> _logger;

        public TelegramErrorHandler(ILogger<TelegramErrorHandler> logger)
        {
            _logger = logger;
        }

        /// <summary>
        /// Обрабатывает ошибки polling'а Telegram бота
        /// </summary>
        public Task HandlePollingErrorAsync(
            ITelegramBotClient botClient,
            Exception exception,
            CancellationToken cancellationToken
        )
        {
            var errorMessage = GetErrorMessage(exception);
            _logger.LogError(exception, "Telegram bot polling error: {ErrorMessage}", errorMessage);
            return Task.CompletedTask;
        }

        private static string GetErrorMessage(Exception exception)
        {
            return exception switch
            {
                ApiRequestException apiRequestException =>
                    $"Telegram API Error:\n[{apiRequestException.ErrorCode}]\n{apiRequestException.Message}",
                _ => exception.ToString(),
            };
        }
    }
}