using System;

public class Program

{

    public static void Main()

    {

        var hoy = new DateTime(2023, 12, 04);

        Console.WriteLine(GetWeeklyDateTimeToFilter(hoy, -10).ToString("dd/MM/yyyy"));

        Console.WriteLine("\n**********\n");

    }

    /// <summary>

    /// Get the next or previous weekly days specified as parameters based on the current date

    /// </summary>

    /// <param name="currentDate">The currentDate<see cref="DateTime"/>.</param>

    /// <param name="daysToMove">The daysToMove<see cref="int"/>.</param>

    /// <returns></returns>

    private static DateTime GetWeeklyDateTimeToFilter(DateTime currentDate, int daysToMove)

    {

        var daysInIteration = daysToMove > 0 ? 1 : -1;

​

        while (daysToMove != 0)

        {

            currentDate = currentDate.AddDays(daysInIteration);

            if (!IsWeekend(currentDate))

            {

                daysToMove -= daysInIteration;

            }

        }

        return currentDate;

    }

​

    private static bool IsWeekend(DateTime date)

    {

        return date.DayOfWeek == DayOfWeek.Saturday || date.DayOfWeek == DayOfWeek.Sunday;

    }

}