// using App.Metrics;
// using App.Metrics.Counter;
// using App.Metrics.Gauge;
// using App.Metrics.Histogram;
// using App.Metrics.ReservoirSampling.Uniform;
// using App.Metrics.Meter;
// using App.Metrics.Timer;
// using App.Metrics.Apdex;
// using App.Metrics.ReservoirSampling.ExponentialDecay;

// namespace AyaNova.Util
// {
//     /// <summary>
//     /// All metrics gathered by AyaNova are defined here
//     /// (except for endpoint ones gathered automatically by App.Metrics)
//     /// https://www.app-metrics.io
//     /// </summary>
//     public static class MetricsRegistry
//     {

//         /// <summary>
//         /// Physical memory
//         /// Memory being used by this process (RAVEN)
//         /// </summary>
//         public static GaugeOptions PhysicalMemoryGauge = new GaugeOptions
//         {
//             Name = "Process Physical Memory",
//             MeasurementUnit = Unit.Bytes
//         };

//         /// <summary>
//         /// Private bytes
//         /// The current size, in bytes, of the committed memory owned by this process. 
//         /// Memory leaks are identified by a consistent and prolonged increase in Private Bytes. 
//         /// This is the best performance counter for detecting memory leaks. 
//         /// </summary>
//         public static GaugeOptions PrivateBytesGauge = new GaugeOptions
//         {
//             Name = "Process Private Bytes",
//             MeasurementUnit = Unit.Bytes
//         };

//         /// <summary>
//         /// Exceptions that are handled by the ApiCustomExceptionFilter
//         /// Basically any exception that is not normal and expected
//         /// </summary>
//         public static MeterOptions UnhandledExceptionsMeter => new MeterOptions
//         {
//             Name = "Exceptions Meter",
//             MeasurementUnit = Unit.Calls
//         };

//         /// <summary>
//         /// Login failed meter
//         /// </summary>
//         public static MeterOptions FailedLoginMeter => new MeterOptions
//         {
//             Name = "Failed Login Meter",
//             MeasurementUnit = Unit.Calls
//         };

//         /// <summary>
//         /// Login failed meter
//         /// </summary>
//         public static MeterOptions SuccessfulLoginMeter => new MeterOptions
//         {
//             Name = "Successful Login Meter",
//             MeasurementUnit = Unit.Calls
//         };

//         /// <summary>
//         /// Records in db
//         /// </summary>
//         public static GaugeOptions DBRecordsGauge = new GaugeOptions
//         {
//             Name = "DB Records",
//             MeasurementUnit = Unit.Items
//         };

//         /// <summary>
//         /// Jobs in db
//         /// </summary>
//         public static GaugeOptions JobsGauge = new GaugeOptions
//         {
//             Name = "Jobs",
//             MeasurementUnit = Unit.Items
//         };

//         /// <summary>
//         /// File count on disk
//         /// </summary>
//         public static GaugeOptions FileCountGauge = new GaugeOptions
//         {
//             Name = "File count",
//             MeasurementUnit = Unit.Items
//         };

//         /// <summary>
//         /// File size on disk
//         /// </summary>
//         public static GaugeOptions FileSizeGauge = new GaugeOptions
//         {
//             Name = "File size",
//             MeasurementUnit = Unit.Bytes
//         };







//         // ==================================================================
//         // /// <summary>
//         // /// 
//         // /// </summary>
//         // public static GaugeOptions Errors => new GaugeOptions
//         // {
//         //     Context = "My_Gauge_context",
//         //     Name = "Errors"
//         // };



//         // /// <summary>
//         // /// 
//         // /// </summary>
//         // public static HistogramOptions SampleHistogram => new HistogramOptions
//         // {
//         //     Name = "Sample Histogram",
//         //     Reservoir = () => new DefaultAlgorithmRReservoir(),
//         //     MeasurementUnit = Unit.MegaBytes
//         // };

//         // /// <summary>
//         // /// 
//         // /// </summary>
//         // public static MeterOptions SampleMeter => new MeterOptions
//         // {
//         //     Name = "Sample Meter",
//         //     MeasurementUnit = Unit.Calls
//         // };

//         // /// <summary>
//         // /// 
//         // /// </summary>
//         // public static TimerOptions SampleTimer => new TimerOptions
//         // {
//         //     Name = "Sample Timer",
//         //     MeasurementUnit = Unit.Items,
//         //     DurationUnit = TimeUnit.Milliseconds,
//         //     RateUnit = TimeUnit.Milliseconds,
//         //     Reservoir = () => new DefaultForwardDecayingReservoir(sampleSize: 1028, alpha: 0.015)
//         // };

//         // /// <summary>
//         // /// 
//         // /// </summary>
//         // public static ApdexOptions SampleApdex => new ApdexOptions
//         // {
//         //     Name = "Sample Apdex"
//         // };



//     }
// }