private IReadOnlyList <ActionSelectorCandidate> EvaluateActionConstraintsCore(RouteContext context, IReadOnlyList <ActionSelectorCandidate> candidates, int?startingOrder)
{
int?startingOrder1 = new int?();
int?nullable;
for (int index1 = 0; index1 < candidates.Count; ++index1)
{
ActionSelectorCandidate candidate = candidates[index1];
if (candidate.Constraints != null)
{
for (int index2 = 0; index2 < candidate.Constraints.Count; ++index2)
{
IActionConstraint constraint = candidate.Constraints[index2];
if (startingOrder.HasValue)
{
int order = constraint.Order;
nullable = startingOrder;
int valueOrDefault = nullable.GetValueOrDefault();
if ((order > valueOrDefault ? (nullable.HasValue ? 1 : 0) : 0) == 0)
{
continue;
}
}
if (startingOrder1.HasValue)
{
int order = constraint.Order;
nullable = startingOrder1;
int valueOrDefault = nullable.GetValueOrDefault();
if ((order < valueOrDefault ? (nullable.HasValue ? 1 : 0) : 0) == 0)
{
continue;
}
}
startingOrder1 = new int?(constraint.Order);
}
}
}
if (!startingOrder1.HasValue)
{
return(candidates);
}
List <ActionSelectorCandidate> selectorCandidateList1 = new List <ActionSelectorCandidate>();
List <ActionSelectorCandidate> selectorCandidateList2 = new List <ActionSelectorCandidate>();
ActionConstraintContext context1 = new ActionConstraintContext();
context1.Candidates = candidates;
context1.RouteContext = context;
for (int index1 = 0; index1 < candidates.Count; ++index1)
{
ActionSelectorCandidate candidate = candidates[index1];
bool flag1 = true;
bool flag2 = false;
if (candidate.Constraints != null)
{
context1.CurrentCandidate = candidate;
for (int index2 = 0; index2 < candidate.Constraints.Count; ++index2)
{
IActionConstraint constraint = candidate.Constraints[index2];
int order = constraint.Order;
nullable = startingOrder1;
int valueOrDefault = nullable.GetValueOrDefault();
if ((order == valueOrDefault ? (nullable.HasValue ? 1 : 0) : 0) != 0)
{
flag2 = true;
if (!constraint.Accept(context1))
{
flag1 = false;
this._logger.LogDebug($"ConstraintMismatch( {candidate.Action.DisplayName}, {candidate.Action.Id}, {constraint}");
break;
}
}
}
}
if (flag1 & flag2)
{
selectorCandidateList1.Add(candidate);
}
else if (flag1)
{
selectorCandidateList2.Add(candidate);
}
}
if (selectorCandidateList1.Count > 0)
{
IReadOnlyList <ActionSelectorCandidate> actionConstraintsCore = this.EvaluateActionConstraintsCore(context, (IReadOnlyList <ActionSelectorCandidate>)selectorCandidateList1, startingOrder1);
if (actionConstraintsCore != null && actionConstraintsCore.Count > 0)
{
return(actionConstraintsCore);
}
}
if (selectorCandidateList2.Count == 0)
{
return((IReadOnlyList <ActionSelectorCandidate>)null);
}
return(this.EvaluateActionConstraintsCore(context, (IReadOnlyList <ActionSelectorCandidate>)selectorCandidateList2, startingOrder1));
}