protected void UpdateAvailableRules <TRule>() where TRule : IRule
{
if (AvailableRules == null)
{
AvailableRules = new ObservableCollection <IRule>();
}
var rules = ImportRulesLocator.GetBehaviors().Where(r => r is TRule).ToArray();
if (AvailableRules.Count == 0)
{
foreach (var rule in rules)
{
AvailableRules.Add(rule);
}
return;
}
var toDelete = AvailableRules.Where(r => !rules.Contains(r)).ToArray();
var toAdd = rules.Where(r => !AvailableRules.Contains(r)).ToArray();
foreach (var rule in toDelete)
{
AvailableRules.Remove(rule);
}
foreach (var rule in toAdd)
{
AvailableRules.Add(rule);
}
}
public IRule Create(AvailableRules action) => _factories[action];