public bool IsNeighbourTo(SideKey sideKey)
{
if (sideKey.DateTime.Year == DateTime.Year)
return Math.Abs(sideKey.DateTime.Month - DateTime.Month) < 2;
if (sideKey.DateTime.Year - DateTime.Year == 1)
return sideKey.DateTime.Month == 1 && DateTime.Month == 12;
if (DateTime.Year - sideKey.DateTime.Year == 1)
return DateTime.Month == 1 && sideKey.DateTime.Month == 12;
return false;
}
public static SideKey Get(DateTime dateTime, EntryType type)
{
SideKey result = null;
if (bids.TryGetValue(dateTime,out result))
return type == EntryType.Bid ? result : result.Opposite;
SideKey bid = new SideKey(dateTime,EntryType.Bid);
SideKey offer = new SideKey(dateTime, EntryType.Offer);
bid.Opposite = offer;
offer.Opposite = bid;
bids.Add(dateTime, bid);
return type == EntryType.Bid ? bid : offer;
}