private VisitProposition GetVisitByDoctor(DateTime when, string DoctorId, Guid? ClinicId)
{
VisitProposition proposition = null;
do
{
var day = when.DayOfWeek;
List<Workday> workday;
// in case we're interested in particular doctor only
if (ClinicId == null)
{
workday = db.Workdays.Where(w => w.DoctorId == DoctorId).Where(w => w.Day == day).ToList();
}
// in case we're interested in doctor within particular clinic
else
{
workday = db.Workdays.Where(w => w.DoctorId == DoctorId).Where(w => w.ClinicId == ClinicId).Where(w => w.Day == day).ToList();
}
if (workday.Count == 0)
{
when = when.AddHours(24 - when.Hour + 5);
continue;
}
else
{
// getting hours of visits for the day
var visits = db.Visits.Where(v => v.DoctorId == DoctorId).ToList().Where(v => DateTime.Compare(v.StartDateTime.Date, when.Date) == 0).Select(v => v.StartDateTime).OrderBy(t => t.TimeOfDay).ToList();
foreach (var plan in workday)
{
DateTime start = plan.StartHour;
// preparing when, to make sure that we schedule to visit which WILL happen
if (when.TimeOfDay > plan.StartHour.TimeOfDay)
{
if (when.Minute > 30)
{
// to avoid date switch
if (when.AddHours(1).Date == when.Date)
{
when = when.AddHours(1);
when = when.AddMinutes(-when.Minute);
}
}
else if (when.Minute > 0)
{
when = when.AddMinutes(30 - when.Minute);
}
start = plan.StartHour.AddHours(when.Hour - plan.StartHour.Hour);
start = start.AddMinutes(when.Minute - plan.StartHour.Minute);
}
// looking for 30 minutes gap
for (DateTime i = start; i < plan.EndHour; i = i.AddMinutes(30))
{
bool flag = false;
foreach (var visit in visits)
{
// proposed time overlaps with existing visit
if (i.TimeOfDay == visit.TimeOfDay)
{
flag = true;
break;
}
}
// no visit on proposed time
if (!flag)
{
var dt = new DateTime(when.Year, when.Month, when.Day, i.Hour, i.Minute, 0);
proposition = new VisitProposition() { DoctorId = DoctorId, ClinicId = plan.ClinicId, StartDateTime = dt };
return proposition;
}
}
}
// all visits are scheduled already, let's move to another day
when = when.AddHours(24 - when.Hour + 5);
}
}
while (true);
}
public ActionResult Proposition(VisitProposition model)
{
var doctor = UserManager.FindById(model.DoctorId);
var clinic = db.Clinics.Find(model.ClinicId);
return View(new VisitPropositionViewModel()
{
ClinicId = model.ClinicId,
DoctorId = model.DoctorId,
StartDateTime = model.StartDateTime,
Clinic = clinic,
Doctor = doctor,
Date = model.StartDateTime,
Time = model.StartDateTime,
Day = model.StartDateTime.DayOfWeek
});
}