protected virtual WorkshopValidatedItem TestTags()
{
var originalTags = new TagsCollection(Target.Tags);
var newTags = new TagsCollection(originalTags.Where(x => x != null && IsTagAllowed(x.ToLowerInvariant()))
.Concat(GetForcedTags()).NonNull()).CleanUp().Sort();
for (var i = newTags.Count - 1; i >= MaxTagsCount; --i)
{
newTags.RemoveAt(i);
}
if (newTags.SequenceEqual(originalTags))
{
return(new WorkshopValidatedItem("Tags are correct"));
}
return(new WorkshopValidatedItem($"Tags will be changed to {newTags.Select(x => $"“{x}”").JoinToString(", ")}",
() => Target.Tags = newTags, () => Target.Tags = originalTags));
}