private static Chain GetChainFromBox(
IReadOnlyCollection <LaboriousDetail> sortedBox,
Func <LaboriousDetail, LaboriousDetail, bool> conflictPredicate)
{
if (sortedBox.Count == 1)
{
return(new Chain(sortedBox));
}
var chain = new Chain();
foreach (var detailFromSortedBox in sortedBox)
{
//chain have elements
if (chain.Any())
{
//last element from chain
var lastElement = chain.Last;
if (lastElement.Value.Type == ChainType.Conflict)
{
var conflict = lastElement.Value as Conflict;
var isConflict = conflict.Details.Values.Any(detail =>
conflictPredicate.Invoke(detail, detailFromSortedBox));
if (isConflict)
{
conflict.Details.Add(detailFromSortedBox.Number, detailFromSortedBox);
}
else
{
chain.AddLast(detailFromSortedBox);
}
}
else
{
var lastDetail = lastElement.Value as LaboriousDetail;
if (conflictPredicate.Invoke(lastDetail, detailFromSortedBox))
{
//it's conflict
var conflict = new Conflict();
conflict.Details.Add(lastDetail.Number, lastDetail);
conflict.Details.Add(detailFromSortedBox.Number, detailFromSortedBox);
chain.RemoveLast();
chain.AddLast(conflict);
}
else
{
chain.AddLast(detailFromSortedBox);
}
}
}
//chain doesn't have elements
else
{
chain.AddLast(detailFromSortedBox);
}
}
return(chain);
}