/// <summary>
/// TODO Заложить в этот класс все необходимые для каждого сервисв свойства и методы
/// </summary>
public abstract class ApplicationServiceBase
{
 protected ApplicationServiceBase(ILoggerFactory loggerFactory)
 {
    Logger = loggerFactory?.CreateLogger(GetType().FullName);
 }
 public IServiceProvider ServiceProvider { get; set; }
 
 protected readonly object ServiceProviderLock = new object();

 protected TService LazyGetRequiredService<TService>(ref TService reference)
  => LazyGetRequiredService(typeof(TService), ref reference);

 protected TRef LazyGetRequiredService<TRef>(Type serviceType, ref TRef reference)
 {
  if (reference == null)
  {
   lock (ServiceProviderLock)
   {
    if (reference == null)
    {
     reference = (TRef)ServiceProvider.GetService(serviceType);
    }
   }
  }

  return reference;
 }

 //https://stackify.com/net-core-loggerfactory-use-correctly/
 protected ILoggerFactory LoggerFactory => LazyGetRequiredService(ref _loggerFactory);
 private ILoggerFactory _loggerFactory;

 protected ILogger Logger;
 //protected ILogger Logger => _lazyLogger.Value;
 //private Lazy<ILogger> _lazyLogger => new Lazy<ILogger>(() => LoggerFactory?.CreateLogger(GetType().FullName) ?? NullLogger.Instance, true);
}