/// <summary>
/// Filters the Prescriptions property according to the selected filter.
/// </summary>
/// <param name="filter">The user's selected filter</param>
private void FilterList(MedicineListFilter filter)
{
switch (filter)
{
case MedicineListFilter.All:
Prescriptions = AllPrescriptions;
NullPrescriptionsContentLabel = "No medicines found. Add one?";
break;
case MedicineListFilter.Scheduled:
Prescriptions = ScheduledPrescriptions;
NullPrescriptionsContentLabel = "No scheduled medicines found. Add one?";
break;
case MedicineListFilter.Administered:
var administered = AdministeredPrescriptions.OrderByDescending(grp => grp.TimeStamp);
Prescriptions = new ObservableCollection <PrescriptionGroup>(administered);
NullPrescriptionsContentLabel = "No medicines administered yet.";
break;
case MedicineListFilter.Unadministered:
var unadministered = UnadministeredPrescriptions.OrderByDescending(grp => grp.TimeStamp);
Prescriptions = new ObservableCollection <PrescriptionGroup>(unadministered);
NullPrescriptionsContentLabel = "You have not missed any medicines to administer.";
break;
default:
break;
}
}
/// <summary>
/// Gets the time stamp of the last administered prescription.
/// </summary>
/// <returns></returns>
private DateTime?ReturnLastAdministeredPrescription()
{
if (AdministeredPrescriptions == null || !AdministeredPrescriptions.Any())
{
return(null);
}
PrescriptionGroup group = AdministeredPrescriptions.OrderBy(grp => grp.Prescriptions[0].AdministeredOn).Last();
return(group.Prescriptions[0].AdministeredOn ?? null);
}
/// <summary>
/// Divides the prescriptions into their own respective classifications.
/// </summary>
private void DividePrescriptions()
{
if (ScheduledPrescriptions == null)
{
ScheduledPrescriptions = new ObservableCollection <PrescriptionGroup>();
}
if (AdministeredPrescriptions == null)
{
AdministeredPrescriptions = new ObservableCollection <PrescriptionGroup>();
}
if (UnadministeredPrescriptions == null)
{
UnadministeredPrescriptions = new ObservableCollection <PrescriptionGroup>();
}
if (SelectedPrescriptions == null)
{
SelectedPrescriptions = new ObservableCollection <PrescriptionGroup>();
}
// past v. future for scheduled
List <PrescriptionGroup> recentPast;
try
{
recentPast = AllPrescriptions.Where(grp => (((grp.TimeStamp - DateTime.Now).TotalMinutes > -30) && ((grp.TimeStamp - DateTime.Now).TotalMinutes < 0))).ToList();
}
catch (ArgumentNullException)
{
recentPast = new List <PrescriptionGroup>();
}
List <PrescriptionGroup> future;
try
{
future = AllPrescriptions.Where(grp => (grp.TimeStamp - DateTime.Now).TotalMinutes > 0).ToList();
}
catch (ArgumentNullException)
{
future = new List <PrescriptionGroup>();
}
var oc = recentPast.Union(future);
ScheduledPrescriptions = new ObservableCollection <PrescriptionGroup>(oc);
// selected
var selected = AllPrescriptions.Where(grp => grp.IsSelectedOnly).ToList();
SelectedPrescriptions = new ObservableCollection <PrescriptionGroup>(selected);
SelectedPrescriptions.CollectionChanged += SelectedPrescriptions_CollectionChanged;
// administered v. unadministered
try
{
foreach (PrescriptionGroup group in AllPrescriptions)
{
bool isAdministered = false;
foreach (var med in group.Prescriptions)
{
if (med.AdministeredOn.HasValue)
{
isAdministered = true;
break;
}
}
if (isAdministered)
{
AdministeredPrescriptions.Add(group);
}
else
{
UnadministeredPrescriptions.Add(group);
}
}
}
catch (Exception)
{
}
}