Paper-broker

CODE:

using WealthLab.Core;
using System.Collections.Generic;
using System.IO;
using Newtonsoft.Json;
using WealthLab.Backtest;
using WealthLab8;
using System.Drawing;

namespace Extensions.Brokers.Paper
{
    public class PaperBroker : BrokerBase
    {
        private bool _isConnected = false;
        //private readonly string _folder;
        public PaperBroker ()
        {
            //_folder = WLHost.Instance.DataFolder;
            ReadJsonAccounts();
        }
        public override string Name => "Paper Broker";

        public override bool IsConnected => _isConnected;
        public override string CompanionStreamingProviderName => "Yahoo! Finance";
        public override string CompanionDataProviderName => "WealthData";
        private void ReadJsonAccounts()
        {
            string json = File.ReadAllText("PaperAccounts.json");
            var data = JsonConvert.DeserializeObject<Data>(json) ?? throw new NullReferenceException();
            var paperAccounts = data.Accounts;

            DisplayBrokerMessage("Reading accounts file", WLColor.Yellow);

            try
            {
                foreach (var acct in paperAccounts)
                {
                    var brokerAccount = new BrokerAccount(this)
                    {
                        AccountID = acct.Id,
                        Cash = acct.Cash,
                        BuyingPower = acct.BuyingPower,
                        AccountValue = acct.Balance,
                        Nickname = acct.Name
                    };


                    foreach (var pos in acct.Positions)
                    {
                        var posType = PositionType.Long;
                        if (!string.IsNullOrEmpty(pos.PositionType))
                            posType = pos.PositionType == "Short" ? PositionType.Short : PositionType.Long;

                        var brokerPosition = new BrokerPosition(brokerAccount)
                        {
                            BasisPrice = pos.CostBasis,
                            Quantity = pos.Quantity,
                            Symbol = pos.Symbol,
                            PositionType = posType,
                            CurrentPrice = pos.LastPrice,
                            EntryDate = pos.EntryDate ,
                            SecurityType = SecurityType.Crypto,
                            SignalDate = pos.EntryDate
                        };

                        brokerAccount.Positions.Add(brokerPosition);
                    }

                    Accounts.Add(brokerAccount);
                }

                DisplayBrokerMessage("Connected", WLColor.Green);
            }
            catch (Exception e)
            {
                DisplayBrokerMessage("Error attempting to connected.", WLColor.Red, e);

            }

            _isConnected = true;
        }
        protected override void CancelTrade(Transaction t)
        {
            throw new NotImplementedException();
        }

        protected override void PlaceTrade(Transaction t)
        {
            throw new NotImplementedException();
        }
    }

    public class Data
    {
        public required List<Account> Accounts { get; set; }
    }

    public class Account
    {
        public required string Id { get; set; }
        public required string Name { get; set; }
        public required double Balance { get; set; }
        public required double BuyingPower { get; set; }
        public required double Cash { get; set; }
        public List<Position> Positions { get; set; } = [];
    }

    public class Position
    {
        public required string Symbol { get; set; }
        public required double Quantity { get; set; }
        public required double CostBasis { get; set; }
        public required double LastPrice { get; set; }
        public string PositionType { get; set; } = "Long";
        public required DateTime EntryDate { get; set; }
    }

}

CODE:
{
    "Accounts": [
        {
            "Id": "Coinbase",
            "Name": "Coinbase",
            "Balance": 10000,
         "BuyingPower": 0,
         "Cash": 0,
         "Positions": [
            {
               "Symbol": "ETH.USD",
               "EntryDate": "9/1/2024",
               "Quantity": 3.5,
               "CostBasis": 3500,
               "PositionType": "Long",
               "LastPrice": 3889.82
            }
         ]
        }
    ]
}