private List <TsvDataViewModel> FindActualParents(TsvDataViewModel parent, string name)
{
var lowestChildren = TsvDataViewModel.GetLowestLevelItems(parent);
if (lowestChildren.All(Expressions[name]))
{
return(new List <TsvDataViewModel> {
parent
});
}
else
{
var children = lowestChildren.Where(Expressions[name]);
var result = new List <TsvDataViewModel>();
foreach (var item in children)
{
var newParent = GetParent(parent.Level + 1, item);
if (newParent != null && !result.Contains(newParent))
{
result.Add(newParent);
}
}
return(result);
}
}
public List <TsvDataViewModel> Parse(List <TsvDataViewModel> sourceData, Action <string, string> callback = null)
{
var result = new List <TsvDataViewModel>();
Logger.Debug("Enter GroupEngine to parse");
try
{
sourceData = sourceData.SelectMany(o => TsvDataViewModel.GetLowestLevelItems(o)).ToList();
var groups = Ioc.Default.GetInstance <Config>().Settings.Groups;
foreach (var group in groups)
{
var func = Evaluator.Evaluate <Func <TsvDataViewModel, bool> >(group.Expression);
Expressions[group.Name] = func;
var list = sourceData.Where(func).ToList();
if (list.Count > 0)
{
var vm = new TsvDataViewModel
{
Item = group.Name,
Level = 0,
Description = group.Description
};
vm.Children = new ObservableCollection <TsvDataViewModel>(list);
result.Add(vm);
}
}
if (result.Count > 0)
{
CalcPrice(result);
}
}
catch (Exception ex)
{
Logger.Error($"Group engine parse error:{ex.StackTrace}");
callback?.Invoke("Error", "Group engine parse data failed");
}
return(result);
}
// get specified level parent
TsvDataViewModel GetParent(int level, TsvDataViewModel vm)
{
TsvDataViewModel node = vm;
if (node.Level == level && !node.HasChildren)
{
return(node);
}
while (node.HasParent && node.Level > level)
{
node = node.Parent;
if (node.Level == level)
{
return(node);
}
}
return(null);
}
