public List <AppointmentsDateAndTimeInformation> GetAppointmentsForCustomer(int userId)
        {
            var user = Context.Users.Where(c => c.Id == userId).First();
            List <AppointmentsDateAndTimeInformation> appointmentsForCustomer = new List <AppointmentsDateAndTimeInformation>();
            Customer           customer     = Context.Customers.Where(c => c.Id == user.IdCustomer).First();
            List <Appointment> appointments = Context.Appointments.Where(c => c.IdCustomer == customer.Id && c.IsActive == true).ToList();

            foreach (var appointment in appointments)
            {
                DateTime startTime = Context.TimeSlots.Where(c => c.Id == appointment.IdTimeSlot).First().StartDateTime;
                DateTime endTime   = Context.TimeSlots.Where(c => c.Id == appointment.IdTimeSlot).First().EndDateTime;
                if (startTime.Date >= DateConverter.CurrentEasternDateTime().Date)
                {
                    AppointmentsDateAndTimeInformation oneAppointment = new AppointmentsDateAndTimeInformation
                    {
                        Appointment = appointment,
                        Date        = startTime.Date.ToString(),
                        StartTime   = startTime.TimeOfDay.ToString(),
                        EndTime     = endTime.TimeOfDay.ToString()
                    };
                    appointmentsForCustomer.Add(oneAppointment);
                }
            }
            appointmentsForCustomer = appointmentsForCustomer.OrderBy(c => c.Date).OrderBy(c => c.StartTime).ToList();
            return(appointmentsForCustomer);
        }
        public List <AppointmentsDateAndTimeInformation> GetOldAppointmentsForACustomer(int userId)
        {
            var                user = Context.Users.First(c => c.Id == userId);
            var                appointmentsForCustomers = new List <AppointmentsDateAndTimeInformation>();
            Customer           customer     = Context.Customers.First(c => c.Id == user.IdCustomer);
            List <Appointment> appointments = Context.Appointments.Where(c => c.IdCustomer == customer.Id).ToList();

            foreach (var appointment in appointments)
            {
                var timeSlot = Context.TimeSlots.First(c => c.Id == appointment.IdTimeSlot);
                if (timeSlot.StartDateTime.Date <= DateConverter.CurrentEasternDateTime().Date)
                {
                    AppointmentsDateAndTimeInformation newAppointment = new AppointmentsDateAndTimeInformation
                    {
                        Appointment = appointment,
                        Date        = timeSlot.StartDateTime.Date.ToString(),
                        StartTime   = timeSlot.StartDateTime.TimeOfDay.ToString(),
                        EndTime     = timeSlot.EndDateTime.TimeOfDay.ToString()
                    };
                    appointmentsForCustomers.Add(newAppointment);
                }
            }
            appointmentsForCustomers = appointmentsForCustomers.OrderBy(c => c.Date).OrderBy(c => c.StartTime).ToList();
            return(appointmentsForCustomers);
        }