public IList<PatternStart> RandomizeColoring()
{
//original color
Dictionary<PatternStart, IList<Color>> startToColor = new Dictionary<PatternStart, IList<Color>>();
//keep track of the active patterns. Will contain new color
List<PatternStart> active = new List<PatternStart>();
foreach (var start in _patternStarts)
{
IList<Color> colors = EffectsToColors(start.SampleEffect.ColorEffects);
startToColor[start] = colors;
OrderedSet<Color> distinct = new OrderedSet<Color>();
distinct.AddAll(colors);
IDictionary<Color, Color> oldToNew = OldToNew(startToColor, active);
Color randBase = distinct.FirstOrDefault(oldToNew.ContainsKey);
IList<Color> newColors = randBase == default(Color)
? ColorPicker.PickColors(distinct.Count)
: ColorPicker.PickColors(randBase, distinct.Count);
IEnumerator<Color> newEnum = newColors.GetEnumerator();
IEnumerator<Color> oldEnum = distinct.GetEnumerator();
while(oldEnum.MoveNext())
{
newEnum.MoveNext();
if (!oldToNew.ContainsKey(oldEnum.Current))
{
oldToNew[oldEnum.Current] = newEnum.Current;
}
}
start.ApplyColors(colors.Select(c=>oldToNew[c]).ToList());
active.RemoveAll(s => s.EndTime <= start.StartTime);
active.Add(start);
}
return _patternStarts;
}
public Slot Park(Vehicle vehicle)
{
try
{
var freeSlots = repo.GetAll().Where(a => a.VehicleSlots.Count(vs => vs.EndTime == null) == 0 &&
a.SlotTypeId >= vehicle.SlotTypeId &&
a.ReservationTypeId <= vehicle.User.ReservationTypeId &&
(a.UserId == null || a.UserId == vehicle.UserId)).ToList();
var comparisionA = new Comparison <Slot>((slot1, slot2) =>
{
int comparer = 0;
if (slot1.ReservationTypeId == vehicle.User.ReservationTypeId)
{
comparer = 0;
}
if (slot1.ReservationTypeId <= slot2.ReservationTypeId)
{
comparer = 1;
}
return(comparer);
});
var comparisionB = new Comparison <Slot>((slot1, slot2) =>
{
int comparer = 0;
if (slot1.UserId == vehicle.UserId)
{
comparer = 0;
}
if (slot1.ReservationTypeId == vehicle.User.ReservationTypeId)
{
comparer = 0;
}
if (slot1.ReservationTypeId <= slot2.ReservationTypeId)
{
comparer = 1;
}
return(comparer);
});
OrderedSet <Slot> slotsA = new OrderedSet <Slot>(freeSlots, comparisionA);
OrderedSet <Slot> slots = new OrderedSet <Slot>(slotsA, comparisionB);
var slotMatched = slots.FirstOrDefault();
var isBooked = false;
if (slotMatched == null)
{
return new Slot()
{
Id = -1
}
}
;
lock (slotLock)
{
//Dual check after lock
var isOccupied = vehicleSlotRepo.GetAll().Any(vs => vs.SlotId == slotMatched.Id && vs.EndTime == null);
if (!isOccupied)
{
var vs = vehicleSlotRepo.Create();
vs.SlotId = slotMatched.Id;
vs.VehicleId = vehicle.Id;
vs.StartTime = DateTime.Now;
vehicleSlotRepo.Add(vs);
context.SaveChanges();
isBooked = true;
}
}
if (!isBooked)
{
Park(vehicle);
}
//Eager load
return(slotMatched);
}
catch (Exception ex)
{
throw ex;
}
}