EvoCalculator.Core/EvoCalculator.Core.Calculation/Columns/KaskoNmperGrColumn.cs

using System;
using EvoCalculator.Core.Calculation.FinanceFormulas;
using EvoCalculator.Core.Models.Calculation.Interfaces;
using EvoCalculator.Core.Models.Calculation.Models;
using EvoCalculator.Core.Models.Calculation.Models.Prepared;

namespace EvoCalculator.Core.Calculation.Columns
{
    public class KaskoNmperGrColumn : IColumn<double>
    {
        public double[] Values { get; set; }

        public KaskoNmperGrColumn(int count)
        {
            Values = new double[count];
        }

        public void ComputeValues(PreparedValues preparedValues, IColumn<DateTime> dateTempColumn)
        {
            for (var i = 0; i < Values.Length; i++)
            {
                Values[i] = 0;
            }

            for (var i = 1; i < Values.Length; i += 12)
            {
                if (i <= preparedValues.NmperInsurance)
                {
                    if (preparedValues.NmperInsurance - i < 16 - 1)
                    {
                        Values[i] = preparedValues.InsuranceKasko / 12 * (preparedValues.NmperInsurance - i + 1);
                    }
                    else
                    {
                        Values[i] = preparedValues.InsuranceKasko;
                    }
                }
            }


            Flow[] flows = new Flow[Values.Length - 1];
            for (var i = 1; i < Values.Length; i++)
            {
                flows[i - 1] = new Flow()
                {
                    Date = dateTempColumn.Values[i].Date,
                    Value = Values[i]
                };
            }


            var XNPV = new XNPV(flows, preparedValues.IrrExpected);
            Values[0] = -XNPV.GetResult();
        }
    }
}