using System.Text.Json;
using Launcher.Next.Core;
namespace Launcher.Next.Observability;
public sealed class JsonlTelemetry(string logRoot) : ILauncherTelemetry
{
    public void Write(string eventType, IReadOnlyDictionary<string, object?>? fields = null)
    { try { Directory.CreateDirectory(logRoot); var allowed = (fields ?? new Dictionary<string, object?>()).Where(x => !x.Key.Contains("user", StringComparison.OrdinalIgnoreCase) && !x.Key.Contains("token", StringComparison.OrdinalIgnoreCase) && !x.Key.Contains("password", StringComparison.OrdinalIgnoreCase)).ToDictionary(); var line = JsonSerializer.Serialize(new { Timestamp = DateTimeOffset.UtcNow, EventType = eventType, Fields = allowed }); File.AppendAllText(Path.Combine(logRoot, DateTime.UtcNow.ToString("yyyyMMdd") + ".jsonl"), line + Environment.NewLine); } catch { } }
}