using System;
using EvoCalculator.Core.FinanceFormulas;
using EvoCalculator.Core.Models.Common;

namespace EvoCalculator.Core.Base.Columns;

public class BaseColumnWithXNPV : BaseColumn<decimal>
{
    private readonly double rate;

    public BaseColumnWithXNPV(int count, BaseColumn<DateTime> dateTempColumn, double rate) : base(count)
    {
        Dates = dateTempColumn.Values;
        this.rate = rate;
    }

    private DateTime[] Dates { get; }

    private Flow[] Flows
    {
        get
        {
            var flows = new Flow[Values.Length];
            for (var i = 0; i < Values.Length; i++)
                flows[i] = new Flow
                {
                    Date = Dates[i],
                    Value = Values[i]
                };

            return flows;
        }
    }

    public decimal XNPV
    {
        get
        {
            var XNPV = new XNPV(Flows, rate);
            return Convert.ToDecimal(XNPV.GetResult());
        }
    }
}