public FieldCollection <T> Update(long fieldId, Func <T, T> updater)
{
Guard.NotNull(updater, nameof(updater));
if (!ById.TryGetValue(fieldId, out var field))
{
return(this);
}
var newField = updater(field);
if (ReferenceEquals(newField, field))
{
return(this);
}
if (!(newField is T typedField))
{
throw new InvalidOperationException($"Field must be of type {typeof(T)}");
}
return(Clone(clone =>
{
clone.fieldsOrdered = clone.fieldsOrdered.Replace(field, typedField);
}));
}
public FieldCollection <T> Remove(long fieldId)
{
if (!ById.TryGetValue(fieldId, out var field))
{
return(this);
}
return(Clone(clone =>
{
clone.fieldsOrdered = fieldsOrdered.Remove(field);
}));
}
public FieldCollection <T> Remove(long fieldId)
{
if (!ById.TryGetValue(fieldId, out _))
{
return(this);
}
return(Clone(clone =>
{
clone.fieldsOrdered = fieldsOrdered.Where(x => x.Id != fieldId).ToArray();
}));
}
private bool RemoveSubscriptionLocked(string From, string Id, bool RemoveFromThings)
{
if (!this.subscriptionsByJID.TryGetValue(From, out Dictionary <string, Subscription> ById))
{
return(false);
}
if (!ById.TryGetValue(Id, out Subscription Subscription))
{
return(false);
}
ById.Remove(Id);
if (ById.Count == 0)
{
this.subscriptionsByJID.Remove(From);
}
if (!RemoveFromThings)
{
return(true);
}
Subscription.Active = false;
foreach (ThingReference Ref in Subscription.Nodes)
{
if (!this.subscriptionsByThing.TryGetValue(Ref, out LinkedList <Subscription> Subscriptions))
{
continue;
}
if (!Subscriptions.Remove(Subscription))
{
continue;
}
if (Subscriptions.First == null)
{
this.subscriptionsByThing.Remove(Ref);
}
}
return(true);
}
