///<summary>Gets open time slots based on the parameters passed in.
///Open time slots are found by looping through the passed in operatories and finding openings that can hold the entire appointment.
///Make sure that timePattern is always passed in utilizing 5 minute increments (no conversion will be applied to the pattern passed in).
///Providers passed in will be the only providers considered when looking for available time slots.
///Passing in a null clinic will only consider operatories with clinics set to 0 (unassigned).
///The timeslots on and between the Start and End dates passed in will be considered and potentially returned as available.
///Optionally set defNumApptType if looking for time slots for New Pat Appt which will apply the DefNum to all time slots found.
///Throws exceptions.</summary>
public static List <TimeSlot> GetTimeSlotsForRange(DateTime dateStart, DateTime dateEnd, string timePattern, List <long> listProvNums
, List <Operatory> listOperatories, List <Schedule> listSchedules, Clinic clinic, long defNumApptType = 0, Logger.IWriteLine log = null)
{
//No need to check RemotingRole; no call to db.
//Order the operatories passed in by their ItemOrder just in case they were passed in all jumbled up.
List <long> listOpNums = listOperatories.OrderBy(x => x.ItemOrder).Select(x => x.OperatoryNum).Distinct().ToList();
//Remove all schedules that fall outside of the date range passed in. Only consider the date right now, the time portion is handled later.
listSchedules.RemoveAll(x => !x.SchedDate.Date.Between(dateStart.Date, dateEnd.Date));
List <Schedule> listProviderSchedules = listSchedules.FindAll(x => x.BlockoutType == 0);
List <Schedule> listBlockoutSchedules = listSchedules.FindAll(x => x.BlockoutType > 0);
//Get every single appointment for all operatories within our start and end dates for double booking and overlapping consideration.
List <Appointment> listApptsForOps = Appointments.GetAppointmentsForOpsByPeriod(Operatories.GetDeepCopy(true).Select(x => x.OperatoryNum).ToList()
, dateStart, dateEnd, log, listSchedules.GroupBy(x => x.ProvNum).Select(x => x.Key).ToList());
log?.WriteLine("listProviderSchedules:\r\n\t" + string.Join(",\r\n\t",
listProviderSchedules.Select(x => x.ScheduleNum + " - " + x.SchedDate.ToShortDateString() + " " + x.StartTime)), LogLevel.Verbose);
log?.WriteLine("listBlockoutSchedules:\r\n\t" + string.Join(",\r\n\t",
listBlockoutSchedules.Select(x => x.ScheduleNum + " - " + x.SchedDate.ToShortDateString() + " " + x.StartTime)), LogLevel.Verbose);
log?.WriteLine("listApptsForOps:\r\n\t"
+ string.Join(",\r\n\t", listApptsForOps.Select(x => x.AptNum + " - " + x.AptDateTime + " OpNum: " + x.Op)), LogLevel.Verbose);
//We need to be conscious of double booking possibilities. Go get provider schedule information for the date range passed in.
Dictionary <DateTime, List <ApptSearchProviderSchedule> > dictProvSchedules = Appointments.GetApptSearchProviderScheduleForProvidersAndDate(
listProvNums, dateStart, dateEnd, listProviderSchedules, listApptsForOps);
//Split up the operatory specific provider schedules from the dynamic ones because each will have different operatory logic.
List <Schedule> listProviderSchedulesWithOp = listProviderSchedules.FindAll(x => x.Ops.Intersect(listOpNums).ToList().Count > 0);
List <ScheduleOp> listScheduleOps = ScheduleOps.GetForSchedList(listProviderSchedules);
//Now we need to get the dynamic schedules (not assigned to a specific operatory).
List <Schedule> listProviderDynamicSchedules = listProviderSchedules.FindAll(x => !listScheduleOps.Exists(y => y.ScheduleNum == x.ScheduleNum));
//Now that we have found all possible valid schedules, find all the unique time slots from them.
List <Schedule> listProviderSchedulesAll = new List <Schedule>(listProviderSchedulesWithOp);
listProviderSchedulesAll.AddRange(listProviderDynamicSchedules);
listProviderSchedulesAll = listProviderSchedulesAll.OrderBy(x => x.SchedDate).ToList();
List <TimeSlot> listAvailableTimeSlots = new List <TimeSlot>();
List <DateTime> listUniqueDays = new List <DateTime>();
int timeIncrement = PrefC.GetInt(PrefName.AppointmentTimeIncrement);
//Loop through all schedules five minutes at a time to find time slots large enough that have no appointments and no blockouts within them.
foreach (Schedule schedule in listProviderSchedulesAll)
{
DateTime dateSched = schedule.SchedDate;
//Straight up ignore schedules in the past. This should not be possible but this is just in case.
if (dateSched.Date < DateTime.Today)
{
continue;
}
if (!listUniqueDays.Contains(dateSched))
{
listUniqueDays.Add(dateSched);
}
TimeSpan timeSchedStart = schedule.StartTime;
TimeSpan timeSchedStop = schedule.StopTime;
//Now, make sure that the start time is set to a starting time that makes sense with the appointment time increment preference.
int minsOver = (timeSchedStart.Minutes) % timeIncrement;
if (minsOver > 0)
{
int minsToAdd = timeIncrement - minsOver;
timeSchedStart = timeSchedStart.Add(new TimeSpan(0, minsToAdd, 0));
}
//Double check that we haven't pushed the start time past the stop time.
if (timeSchedStart >= timeSchedStop)
{
continue;
}
//Figure out all possible operatories for this particular schedule.
List <Operatory> listOpsForSchedule = new List <Operatory>();
if (schedule.Ops.Count > 0)
{
listOpsForSchedule = listOperatories.FindAll(x => schedule.Ops.Exists(y => y == x.OperatoryNum));
}
else //Dynamic schedule. Figure out what operatories this provider is part of that are associated to the corresponding eService.
//Get all of the valid operatories that this provider is associated with.
{
listOpsForSchedule = listOperatories.FindAll(x => x.ProvDentist == schedule.ProvNum || x.ProvHygienist == schedule.ProvNum);
}
if (PrefC.HasClinicsEnabled)
{
//Skip this schedule entry if the operatory's clinic does not match the patient's clinic.
if (clinic == null)
{
//If a clinic was not passed in, ONLY consider unassigned operatories
listOpsForSchedule = listOpsForSchedule.FindAll(x => x.ClinicNum == 0);
}
else
{
//If a valid clinic was passed in, make sure the operatory has a matching clinic.
listOpsForSchedule = listOpsForSchedule.FindAll(x => x.ClinicNum == clinic.ClinicNum);
}
}
if (listOpsForSchedule.Count == 0)
{
continue; //No valid operatories for this schedule.
}
log?.WriteLine("schedule: " + schedule.ScheduleNum + "\tlistOpsForSchedule:\r\n\t"
+ string.Join(",\r\n\t", listOpsForSchedule.Select(x => x.OperatoryNum + " - " + x.Abbrev)), LogLevel.Verbose);
//The list of operatories has been filtered above so we need to find ALL available time slots for this schedule in all operatories.
foreach (Operatory op in listOpsForSchedule)
{
AddTimeSlotsFromSchedule(listAvailableTimeSlots, schedule, op.OperatoryNum, timeSchedStart, timeSchedStop
, listBlockoutSchedules, dictProvSchedules, listApptsForOps, timePattern, defNumApptType);
}
}
//Remove any time slots that start before right now (just in case the consuming method is looking for slots for today).
listAvailableTimeSlots.RemoveAll(x => x.DateTimeStart.Date == DateTime.Now.Date && x.DateTimeStart.TimeOfDay < DateTime.Now.TimeOfDay);
//Order the entire list of available time slots so that they are displayed to the user in sequential order.
//We need to do this because we loop through each provider's schedule one at a time and add openings as we find them.
//Then order by operatory.ItemOrder in order to preserve old behavior (filling up the schedule via operatories from the left to the right).
return(listAvailableTimeSlots.OrderBy(x => x.DateTimeStart)
//listOpNums was ordered by ItemOrder at the top of this method so we can trust that it is in the correct order.
.ThenBy(x => listOpNums.IndexOf(x.OperatoryNum))
.ToList());
}