text: using System;
  using System.Diagnostics;
  using System.Globalization;
  using Microsoft.Extensions.Logging;
  
  namespace MediaBrowser.Controller.Library
  {
      /// <summary>
      /// Class Profiler.
      /// </summary>
      public class Profiler : IDisposable
      {
          /// <summary>
          /// The name.
          /// </summary>
          readonly string _name;
  
          /// <summary>
          /// The stopwatch.
          /// </summary>
          readonly Stopwatch _stopwatch;
  
          /// <summary>
          /// The _logger.
          /// </summary>
          private readonly ILogger<Profiler> _logger;
  
          /// <summary>
          /// Initializes a new instance of the <see cref="Profiler" /> class.
          /// </summary>
          /// <param name="name">The name.</param>
          /// <param name="logger">The logger.</param>
          public Profiler(string name, ILogger<Profiler> logger)
          {
              this._name = name;
  
              _logger = logger;
  
              _stopwatch = new Stopwatch();
              _stopwatch.Start();
          }
  
          /// <summary>
          /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
          /// </summary>
          public void Dispose()
          {
              Dispose(true);
              GC.SuppressFinalize(this);
          }
  
          /// <summary>
          /// Releases unmanaged and - optionally - managed resources.
          /// </summary>
          /// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
          protected virtual void Dispose(bool dispose)
          {
              if (dispose)
              {
                  _stopwatch.Stop();
                  string message;
                  if (_stopwatch.ElapsedMilliseconds > 300000)
                  {
                      message = string.Format(
                          CultureInfo.InvariantCulture,
                          "{0} took {1} minutes.",
                          _name,
                          ((float)_stopwatch.ElapsedMilliseconds / 60000).ToString("F", CultureInfo.InvariantCulture));
                  }
                  else
                  {
                      message = string.Format(
                          CultureInfo.InvariantCulture,
                          "{0} took {1} seconds.",
                          _name,
                          ((float)_stopwatch.ElapsedMilliseconds / 1000).ToString("#0.000", CultureInfo.InvariantCulture));
                  }
  
                  _logger.LogInformation(message);
              }
          }
      }
  }
  