// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Diagnostics;
using Aspire.Dashboard.Otlp.Model;
 
namespace Aspire.Dashboard.Components.Controls.Chart;
 
[DebuggerDisplay("Start = {Start}, Value = {Value}, TraceId = {TraceId}, SpanId = {SpanId}")]
public class ChartExemplar
{
    /// <summary>
    /// Gets the exemplar's UTC display timestamp at 100-nanosecond resolution.
    /// </summary>
    public DateTimeOffset Start => new(OtlpHelpers.UnixNanoSecondsToDateTime(TimeUnixNano), TimeSpan.Zero);
 
    /// <summary>
    /// Gets the original exemplar timestamp in nanoseconds since the Unix epoch.
    /// </summary>
    public required ulong TimeUnixNano { get; init; }
    public required double Value { get; init; }
    public required string TraceId { get; init; }
    public required string SpanId { get; init; }
    public required OtlpSpan? Span { get; init; }
}