using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Impeltech.EDS.Helper
{
    public class SumHelper
    {



        private List<double> ListSum { get; set; }



        public double CalculateSum(DateTime start, DateTime end, double coefficient, double Sum)
        {

            var date = start;
            ListSum = new List<double>();

            while (date < end)
            {

                var nextDate =DateHelper.GetNextDate(date, end);

                var price = (nextDate - date).TotalDays / DateHelper.GetDaysInYear(date) * coefficient * 0.01 * Sum;

                ListSum.Add(price);

                date = nextDate;

            }


            return Math.Round(ListSum.Sum(), 2);
        }



    }


}