using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

​

public class Program

{

    public class Configuration

    {

        public string InputFileFolder

        {

            get;

            set;

        }

​

        public TransactionGroup[] TransactionGroups

        {

            get;

            set;

        }

    }

​

    public class TransactionGroup

    {

        public string Name

        {

            get;

            set;

        }

​

        public string FilterString

        {

            get;

            set;

        }

​

        public object[] Arguments

        {

            get;

            set;

        }

    }

​

    public static void Main()

    {

        const string json = "{\r\n\"InputFileFolder\": \"D:\\\\MontlyTransactions\\\\\",\r\n\"TransactionGroups\":\r\n[\r\n    {\r\n        \"Name\": \"Income\", \r\n        \"FilterString\": \"Type=@0 and Amount>@1 and (Description.Contains(@2) or Description.Contains(@3))\",\r\n        \"Arguments\": [\"BAC\",0,\"REF1\",\"REF2\"]\r\n    },\r\n    {\r\n        \"Name\": \"Household Bills\", \r\n        \"FilterString\": \"Type=@0 and Amount<@1 and Amount.Contains(@2)\",\r\n        \"Arguments\": [\"S/O\",0,[16600,72000,15000]]\r\n    }\r\n]}";

        var result = JsonConvert.DeserializeObject<Configuration>(json);

        //result.Dump();

        foreach (var tg in result.TransactionGroups)

        {

            for (var i = 0; i < tg.Arguments.Length; i++)

            {

                var arrArg = tg.Arguments[i];

                if (arrArg is JArray realArr)

                {

                    tg.Arguments[i] = realArr.ToObject<string[]>();

                }

            }

        }

​

        result.Dump();

        Console.WriteLine("Hello World");

    }

}