FinalExamPrepare/ConsoleAppForLibrary/SecondLibrary/WorkPaymentCalculator.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SecondLibrary
{
    public class WorkPaymentCalculator
    {
        public class WorkDay
        { 
            public DateTime Date { get; set; }
            public int HourCount { get; set; }
        }


        public static double CalculateSalary(double hourSalary, List<WorkDay> workDays, string workConditions)
        {
            double salary = 0;
            double salaryUp;
            switch (workConditions)
            {
                case "Допустимые":
                    salaryUp = 150; 
                    break;
                case "Вредные":
                    salaryUp = 350;
                    break;
                case "Опасные":
                    salaryUp = 500;
                    break;
                default:
                    salaryUp = 0;
                    break;
            }

            foreach (WorkDay workDay in workDays) 
            {
                bool isHolyday = workDay.Date.DayOfWeek == DayOfWeek.Sunday || workDay.Date.DayOfWeek == DayOfWeek.Saturday;
                double daySalary = 0;
                if (workDay.HourCount > 8)
                    daySalary = 8 * hourSalary * ((isHolyday) ? 2 : 1) + (workDay.HourCount - 8) * 2 * hourSalary * ((isHolyday) ? 2 : 1);
                else
                    daySalary = workDay.HourCount * hourSalary * ((isHolyday) ? 2 : 1);
                salary += daySalary + salaryUp;
            }

            return salary;
        }
    }
}