/// <summary>
/// Moves patients from the PatientQueue to the either the IntesiveCareUnit or Sanatorium. Prioritizes by high severity first then high age.
/// </summary>
public void ThreadTwo()
{
lock (krankenhausLock)
{
using (var db = new KrankenhausContext())
{
//Records the number of patient moves for KrankenhausMovedPatientsEventArgs
int numberOfPatientsAddedToICU = 0;
int numberOfPatientsAddedToICUFromQueue = 0;
int numberOfPatientsAddedToICUFromSanatorium = 0;
int numberOfPatietnsAddedToSanatoriumFromQueue = 0;
var freeICUBeds = db.IntesiveCareUnit.Where(ICU => ICU.AvailableBed == true).ToList();
var patientsToRelocateFromQueueQuery = db.Patients.Where(P => P.PatientQueueID != null && P.ConditionLevel != 10 && P.ConditionLevel != 0);
var patientsToRelocateFromSanatoriumQuery = db.Patients.Where(P => P.SanatoriumID != null && P.ConditionLevel != 10 && P.ConditionLevel != 0);
var patientsToRelocate = patientsToRelocateFromSanatoriumQuery.Concat(patientsToRelocateFromQueueQuery).ToList();
patientsToRelocate = patientsToRelocate.OrderByDescending(P => P.ConditionLevel).ThenByDescending(P => P.Age).ToList();
if (freeICUBeds.Count != 0 && patientsToRelocate.Count != 0)
{
//Makes sure that out of range index exception doesn't appear when patients are fewer than number of free beds
int maxNumberOfPatientsAssignableToICU = freeICUBeds.Count <= patientsToRelocate.Count ? freeICUBeds.Count : patientsToRelocate.Count;
for (int i = 0; i < maxNumberOfPatientsAssignableToICU; i++)
{
int?intToQueryAgainstPatientQueue = patientsToRelocate[i].PatientQueueID;
int?intToQueryAgainstSanatorium = patientsToRelocate[i].SanatoriumID;
var patientInQueue = db.PatientQueue.Where(PQ => PQ.PatientQueueID == intToQueryAgainstPatientQueue).FirstOrDefault <PatientQueue>();
var patientsSanatoriumBed = db.Sanatorium.FirstOrDefault <Sanatorium>(S => S.SanatoriumID == intToQueryAgainstSanatorium);
if (patientInQueue != null)
{
db.PatientQueue.Remove(patientInQueue);
patientsToRelocate[i].AssingedToHopsitalBed = DateTime.UtcNow;
db.SaveChanges();
freeICUBeds[i].AvailableBed = false;
patientsToRelocate[i].IntensiveCareUnitID = freeICUBeds[i].IntensiveCareUnitID;
patientsToRelocate[i].PatientQueueID = null;
numberOfPatientsAddedToICUFromQueue++;
numberOfPatientsAddedToICU++;
db.SaveChanges();
}
else if (patientsSanatoriumBed != null)
{
patientsSanatoriumBed.Patient = null;
patientsSanatoriumBed.AvailableBed = true;
freeICUBeds[i].AvailableBed = false;
patientsToRelocate[i].IntensiveCareUnitID = freeICUBeds[i].IntensiveCareUnitID;
patientsToRelocate[i].SanatoriumID = null;
numberOfPatientsAddedToICUFromSanatorium++;
numberOfPatientsAddedToICU++;
db.SaveChanges();
}
db.SaveChanges();
}
if (numberOfPatientsAddedToICU > 0)
{
patientsToRelocate.RemoveRange(0, numberOfPatientsAddedToICU);
}
}
var freeSanatoriumBeds = (from S in db.Sanatorium
where S.AvailableBed == true
select S).ToList();
//Removes all patiens who are already assinged to a bed i.e. a Sanatorium bed.
patientsToRelocate.RemoveAll(P => P.AssingedToHopsitalBed != null);
if (freeSanatoriumBeds.Count != 0 && patientsToRelocate.Count != 0)
{
//Makes sure that out of range index exception doesn't appear.
int maxNumberOfPatientsAssignableToSanatorium = freeSanatoriumBeds.Count <= patientsToRelocate.Count ? freeSanatoriumBeds.Count : patientsToRelocate.Count;
for (int i = 0; i < maxNumberOfPatientsAssignableToSanatorium; i++)
{
var intToQueryAgaint = patientsToRelocate[i].PatientQueueID;
var patientInQueue = db.PatientQueue.FirstOrDefault <PatientQueue>(PQ => PQ.PatientQueueID == intToQueryAgaint);
if (patientInQueue != null)
{
db.PatientQueue.Remove(patientInQueue);
db.SaveChanges();
freeSanatoriumBeds[i].AvailableBed = false;
patientsToRelocate[i].AssingedToHopsitalBed = DateTime.UtcNow;
patientsToRelocate[i].Sanatorium = freeSanatoriumBeds[i];
patientsToRelocate[i].PatientQueue = null;
numberOfPatietnsAddedToSanatoriumFromQueue++;
}
db.SaveChanges();
}
}
db.SaveChanges();
if (numberOfPatientsAddedToICUFromQueue + numberOfPatientsAddedToICUFromSanatorium + numberOfPatietnsAddedToSanatoriumFromQueue > 0)
{
PatientsMoved?.Invoke(this, new KrankenhausMovedPatientsEventArgs()
{
NumberOfPatientsFromQueueToSanatorium = numberOfPatietnsAddedToSanatoriumFromQueue, NumberOfPatientsFromQueueToICU = numberOfPatientsAddedToICUFromQueue, NumberOfPatientsFromSanatoriumToICU = numberOfPatientsAddedToICUFromSanatorium
});
}
}
}
}
/// <summary>
/// Removes patients from ICU and sanatorium to AfterLife or Discharged depending on their status
/// </summary>
public void ThreadFour()
{
lock (krankenhausLock)
{
using (var db = new KrankenhausContext())
{
int numberOfPatientsToAfterLife = 0;
int numberOfPatientsDischarged = 0;
var patientsToRelocate = db.Patients.Where(P => P.ConditionLevel == 0 && P.DischargedID == null || P.ConditionLevel == 10 && P.AfterLifeID == null).ToList();
var discharged = db.Dischargeds.FirstOrDefault();
var afterLifte = db.AfterLives.FirstOrDefault();
for (int i = 0; i < patientsToRelocate.Count; i++)
{
if (patientsToRelocate[i].PatientQueueID != null)
{
int?patientQueueIDToQueryAgainst = patientsToRelocate[i].PatientQueueID;
var patientQueue = db.PatientQueue.Where(PQ => PQ.PatientQueueID == patientQueueIDToQueryAgainst).FirstOrDefault();
db.PatientQueue.Remove(patientQueue);
}
else if (patientsToRelocate[i].SanatoriumID != null)
{
int?patientSanatoriumIDToQueryAgainst = patientsToRelocate[i].SanatoriumID;
var sanatoriumBed = db.Sanatorium.Where(S => S.SanatoriumID == patientSanatoriumIDToQueryAgainst).FirstOrDefault();
patientsToRelocate[i].SanatoriumID = null;
sanatoriumBed.AvailableBed = true;
}
else if (patientsToRelocate[i].IntensiveCareUnitID != null)
{
int?patientICUIDToQueryAgainst = patientsToRelocate[i].IntensiveCareUnitID;
var iCUBed = db.IntesiveCareUnit.Where(ICU => ICU.IntensiveCareUnitID == patientICUIDToQueryAgainst).FirstOrDefault();
patientsToRelocate[i].IntensiveCareUnitID = null;
iCUBed.AvailableBed = true;
}
if (patientsToRelocate[i].ConditionLevel == 10)
{
patientsToRelocate[i].Afterlife = afterLifte;
numberOfPatientsToAfterLife++;
}
else if (patientsToRelocate[i].ConditionLevel == 0)
{
patientsToRelocate[i].Discharged = discharged;
numberOfPatientsDischarged++;
}
patientsToRelocate[i].SignedOut = DateTime.UtcNow;
db.SaveChanges();
}
if (numberOfPatientsDischarged + numberOfPatientsToAfterLife != 0)
{
PatientsMoved?.Invoke(this, new KrankenhausMovedPatientsEventArgs()
{
NumberOfDeceasedPatients = numberOfPatientsToAfterLife, NumberOfRecoveredPatients = numberOfPatientsDischarged
});
}
}
}
}