private static UrlData GetNextEntry(UrlData[] entries, UrlData thisEntry) {
if (entries.Count() == 1) {
return UrlData.Empty();
}
if (entries.Last().Equals(thisEntry)) {
// last in list so return one before
return entries[entries.Length - 2];
}
var previousEntry = UrlData.Empty();
foreach (var entry in entries.Reverse()) {
if (entry.Equals(thisEntry)) {
return previousEntry;
}
previousEntry = entry;
}
// not found - should never happen
return entries.Last();
}
private static UrlData GetLastEntry(UrlData[] entries) {
return entries.Any() ? entries.Last() : UrlData.Empty();
}