text: using NLog;
  using NzbDrone.Core.DecisionEngine;
  using NzbDrone.Core.Download;
  using NzbDrone.Core.Parser.Model;
  
  namespace NzbDrone.Core.MediaFiles.TrackImport.Specifications
  {
      public class CloseTrackMatchSpecification : IImportDecisionEngineSpecification<LocalTrack>
      {
          private const double _threshold = 0.4;
          private readonly Logger _logger;
  
          public CloseTrackMatchSpecification(Logger logger)
          {
              _logger = logger;
          }
  
          public Decision IsSatisfiedBy(LocalTrack item, DownloadClientItem downloadClientItem)
          {
              var dist = item.Distance.NormalizedDistance();
              var reasons = item.Distance.Reasons;
  
              if (dist > _threshold)
              {
                  _logger.Debug($"Track match is not close enough: {dist} vs {_threshold} {reasons}. Skipping {item}");
                  return Decision.Reject($"Track match is not close enough: {1 - dist:P1} vs {1 - _threshold:P0} {reasons}");
              }
  
              _logger.Debug($"Track accepted: {dist} vs {_threshold} {reasons}.");
              return Decision.Accept();
          }
      }
  }
  