/// <summary>
/// Open or close counters automatically
/// </summary>
private void ManageCheckoutCounters()
{
//AutoOpen logic
//If any customer finding a line
//And any close counters
//Either all counters closed or any customershave been waiting longer than MAX_WAIT_TIME
if (
Customers.Any(c => c.State == CustomerStates.FindingLine && c.TimeSpentWaiting.TotalSeconds >= MAX_WAIT_TIME) &&
CheckoutCounters.Any(cc => cc.State == CheckoutCounterStates.Closed) &&
(CheckoutCounters.All(cc => cc.State == CheckoutCounterStates.Closed) ||
Customers.Any(c => c.TimeSpentWaiting.TotalSeconds >= MAX_WAIT_TIME))
)
{
CheckoutCounters.Where(cc => cc.State == CheckoutCounterStates.Closed).First().State = CheckoutCounterStates.Open;
}
//AutoClose logic
//If there are not any customers finding a line
//And any checkout counters open
//And line empty for NB_SECONDS_BEFORE_COUNTER_CLOSES
//And no customers going to checkout counter
if (
!(Customers.Any(c => c.State == CustomerStates.FindingLine)) &&
CheckoutCounters.Any(cc => cc.State == CheckoutCounterStates.Open &&
cc.TimeSinceLineEmpty >= NB_SECONDS_BEFORE_COUNTER_CLOSES &&
!Customers.Any(c => c.CheckoutCounter == cc))
)
{
CheckoutCounters.Where(cc => cc.State == CheckoutCounterStates.Open && cc.TimeSinceLineEmpty >= NB_SECONDS_BEFORE_COUNTER_CLOSES).First().State = CheckoutCounterStates.Closed;
}
}
/// <summary>
/// Finds checkout counter with shortest line
/// </summary>
/// <returns>Checkout counter</returns>
public CheckoutCounter GetCheckoutCounterWithShortestLine()
{
if (CheckoutCounters.Any(cc => cc.State == CheckoutCounterStates.Open && cc.LineLength < NB_CUSTOMERS_PER_COUNTER))
{
return(this.CheckoutCounters.Where(cc => cc.State == CheckoutCounterStates.Open && cc.LineLength < NB_CUSTOMERS_PER_COUNTER).OrderBy(cc => cc.HighestWaitTime).First());
}
else
{
return(null);
}
}
