public override System.Threading.Tasks.Task OnDisconnected(bool stopCalled)
{
//removing user connection
//_auctionConnectionService.Delete(Context.ConnectionId);
AuctionConnection cnn = db.AuctionConnections.FirstOrDefault(c => c.Connection == Context.ConnectionId);
if (cnn != null)
{
try
{
//bool changeParticipantsCount = false;
//if (cnn.User != null)
//{
// if (db.AuctionBids.Where(bid => bid.AuctionID == cnn.AuctionID && bid.UserID == cnn.UserID).FirstOrDefault() == null
// && db.AuctionConnections.Where(con => con.AuctionID == cnn.AuctionID && con.UserID == cnn.UserID).Count() == 1)
// {
// changeParticipantsCount = true;
// }
//}
//else
// changeParticipantsCount = true;
//if (changeParticipantsCount)
//{
// List<AuctionConnection> currentAuctionConnections = db.AuctionConnections.Where(c => c.AuctionID == cnn.AuctionID).ToList();
// foreach (var item in currentAuctionConnections)
// {
// Clients.Client(item.Connection).participantsChanged(-1);
// }
//}
Auction auction = db.Auctions.FirstOrDefault(auc => auc.ID == cnn.AuctionID);
db.AuctionConnections.Remove(cnn);
db.SaveChanges();
if (auction != null)
{
List<int> biddersIDs = auction.AuctionBids.Select(item => item.UserID).ToList();
List<int> onlineAuthorizedUsersID = auction.AuctionConnections.Where(con => con.UserID != null).Select(item => (int)item.UserID).ToList();
int onlineUnauthorizedUsersCount = auction.AuctionConnections.Where(con => con.UserID == null).Count();
int NumberOfParticipants = biddersIDs.Union(onlineAuthorizedUsersID).Count() + onlineUnauthorizedUsersCount;
List<AuctionConnection> currentAuctionConnections = db.AuctionConnections.Where(c => c.AuctionID == auction.ID).ToList();
foreach (var item in currentAuctionConnections)
{
Clients.Client(item.Connection).participantsChanged(NumberOfParticipants);
}
}
}
catch (Exception ex)
{ }
}
return base.OnDisconnected(stopCalled);
}
public void AddCurrentUserToAuction(string email, int auctionID)
{
try
{
//вход в аукцион пока бесплатный
int? userID = null;
User user = db.Users.FirstOrDefault(u => u.Email == email);
//User user = _userService.GetCurrentUser();
if (user != null)
userID = user.ID;
AuctionConnection aucCnn = new AuctionConnection()
{
AuctionID = auctionID,
UserID = userID,
Connection = Context.ConnectionId,
DateCreated = DateTime.Now
};
db.AuctionConnections.Add(aucCnn);
db.SaveChanges();
Auction auction = db.Auctions.FirstOrDefault(auc => auc.ID == auctionID);
List<int> biddersIDs = auction.AuctionBids.Select(item => item.UserID).ToList();
List<int> onlineAuthorizedUsersID = auction.AuctionConnections.Where(cnn => cnn.UserID != null).Select(item => (int)item.UserID).ToList();
int onlineUnauthorizedUsersCount = auction.AuctionConnections.Where(cnn => cnn.UserID == null).Count();
int NumberOfParticipants = biddersIDs.Union(onlineAuthorizedUsersID).Count() + onlineUnauthorizedUsersCount;
List<AuctionConnection> currentAuctionConnections = db.AuctionConnections.Where(c => c.AuctionID == auctionID).ToList();
foreach (var item in currentAuctionConnections)
{
Clients.Client(item.Connection).participantsChanged(NumberOfParticipants);
}
//bool changeParticipantsCount = false;
//if (user != null)
//{
// if (db.AuctionBids.Where(bid => bid.AuctionID == auctionID && bid.UserID == user.ID).FirstOrDefault() == null
// && db.AuctionConnections.Where(cnn => cnn.AuctionID == auctionID && cnn.UserID == user.ID).Count() < 2)
// {
// changeParticipantsCount = true;
// }
//}
//else
// changeParticipantsCount = true;
//if (changeParticipantsCount)
//{
// List<AuctionConnection> currentAuctionConnections = db.AuctionConnections.Where(c => c.AuctionID == auctionID).ToList();
// foreach (var item in currentAuctionConnections)
// {
// Clients.Client(item.Connection).participantsChanged(1);
// }
//}
//_auctionConnectionService.Create(aucCnn);
}
catch (Exception ex)
{
}
}
