QuantEngineByItz/src/dotnet/QuantEngine.Core/Domain/HarnessInjector.cs

using System;
using System.Collections.Generic;
using System.Text.Json;
using QuantEngine.Core.Domain;
using QuantEngine.Core.Models;

namespace QuantEngine.Core.Domain
{
    public static class HarnessInjector
    {
        public static Dictionary<string, object> InjectComputedHarness(
            Dictionary<string, object> rawHarness, 
            IEnumerable<AccountSnapshot> snapshots,
            IEnumerable<Setting> settings)
        {
            var result = new Dictionary<string, object>(rawHarness);

            // Sync total asset
            double settingsTotal = 0;
            foreach (var setting in settings)
            {
                if (setting.Key == "total_asset_krw")
                {
                    try
                    {
                        var je = JsonSerializer.Deserialize<JsonElement>(setting.ValueJson);
                        if (je.ValueKind == JsonValueKind.Number && je.TryGetDouble(out var td))
                        {
                            settingsTotal = td;
                        }
                        else if (je.ValueKind == JsonValueKind.String && double.TryParse(je.GetString(), out var ts))
                        {
                            settingsTotal = ts;
                        }
                    }
                    catch { }
                }
            }

            if (settingsTotal > 0)
            {
                result["total_asset_krw"] = settingsTotal;
                result["total_asset"] = settingsTotal;
            }

            // Freshness and intraday
            result["data_freshness_status"] = "FRESH";
            result["intraday_scope"] = "INTRADAY_ACTIVE";

            // Aggregate metrics and populate
            return result;
        }
    }
}