public LogicalGroup(ConditionGroup group)
{
List <LogicalItem> subItems = new List <LogicalItem>();
Group = group;
foreach (ExpressionTreeBase current in group.Children)
{
foreach (LogicalItem next in ConditionGroup.Convert(current))
{
subItems.Add(next);
}
}
SubItems = subItems.ToArray();
IEnumerable <SelectorTypes> types = SubItems.Select(x => x.SingleSelector).Distinct();
if (IsSingleSelector = types.Count() == 1 && !SubItems.OfType <LogicalGroup>().Any(x => !x.IsSingleSelector))
{
SingleSelector = types.First();
}
List <List <LogicalItem> > chains = GetChains(subItems);
List <SelectorGroup> groups = new List <SelectorGroup>();
foreach (List <LogicalItem> chain in chains)
{
List <LogicalItem> unknownItems = new List <LogicalItem>();
SelectorTypes[] newTypes = chain.Select(x => x is LogicalGroup ? (((LogicalGroup)x).IsSingleSelector ? x.SingleSelector : SelectorTypes.Invalid) : x.SingleSelector).Distinct().ToArray();
foreach (SelectorTypes current in newTypes)
{
List <LogicalItem> items = new List <LogicalItem>();
for (int i = chain.Count - 1; i >= 0; i--)
{
LogicalItem item = chain[i];
SelectorTypes?selector = item is LogicalGroup ? (((LogicalGroup)item).IsSingleSelector ? (SelectorTypes?)item.SingleSelector : null) : item.SingleSelector;
if (selector == null)
{
unknownItems.Insert(0, item);
chain.RemoveAt(i);
}
else if (selector == current)
{
items.Insert(0, item);
}
}
if (items.Count > 0)
{
groups.Add(new SelectorGroup(items, current));
}
}
if (unknownItems.Count > 0)
{
groups.Add(new SelectorGroup(unknownItems, null));
}
}
for (int i = groups.Count - 1; i >= 0; i--)
{
if (i > 0)
{
if (groups[i].Selector == groups[i - 1].Selector)
{
SelectorGroup upperGroup = groups[i];
SelectorGroup lowerGroup = groups[i - 1];
groups.RemoveAt(i);
groups.RemoveAt(i - 1);
List <LogicalItem> items = new List <LogicalItem>();
items.AddRange(lowerGroup.Children);
items.AddRange(upperGroup.Children);
SelectorGroup joinedGroup = new SelectorGroup(items, upperGroup.Selector);
groups.Insert(i - 1, joinedGroup);
}
}
}
SelectorGroups = groups.ToArray();
}