private async Task AddSalaryArchive(int?id)
        {
            var orderCarWorkers = await _orderCarWashWorkers.SelectMonth(id, DateTime.Now.AddMonths(-1).Month, DateTime.Now.Year);

            var salaryExpenses = await _salaryExpenses.PayrollExpensesPerMonth(id, DateTime.Now.AddMonths(-1).Month, DateTime.Now.Year);

            SalaryArchiveBll salaryArchive = new SalaryArchiveBll();

            salaryArchive.carWashWorkersId            = id.Value;
            salaryArchive.date                        = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1).AddMonths(0).AddDays(-1);
            salaryArchive.amountOfCompletedOrders     = orderCarWorkers.Count();
            salaryArchive.monthlySalaryAmountEarned   = orderCarWorkers.Sum(x => x.Payroll);
            salaryArchive.monthlySalaryAmountReceived = salaryExpenses.Sum(x => x.Expenses.Amount);
            salaryArchive.balanceAtTheEndOfTheMonth   = (salaryArchive.monthlySalaryAmountReceived - salaryArchive.monthlySalaryAmountEarned);

            if (salaryArchive.balanceAtTheEndOfTheMonth == 0)
            {
                salaryArchive.salaryStatus = true;
            }
            else
            {
                salaryArchive.salaryStatus = false;
            }

            await _salaryArchive.Insert(salaryArchive);
        }
 public async Task <IEnumerable <WagesForDaysWorkedBll> > MonthOrderResult(int?id, int month, int year) =>
 GroupOrderCarWashWorkers(await _orderCarWash.SelectMonth(id, month, year));