public async Task <ActionResult> BidNow(Guid?id, byte[] version)
{
log.Info("Action /Auction/BidNow has been fired.");
using (var trans = db.Database.BeginTransaction(IsolationLevel.Serializable))
{
try
{
if (id == null || version == null)
{
throw new Exception();
}
Auction auction = db.Auction.Find(id);
if (auction == null)
{
throw new Exception();
}
if (auction.State.Equals("READY") || auction.State.Equals("COMPLETED"))
{
throw new Exception();
}
User lastUser = auction.Winner;
string idLastUser = auction.IdWinner;
string idUser = User.Identity.GetUserId();
User user = db.User.Find(idUser);
if (!checkNumberOfTokens(auction, user))
{
throw new Exception();
}
returnTokens(auction);
updateAuctionAndBid(auction);
reserveTokens(auction);
db.Entry(auction).OriginalValues["AuctionRowVersion"] = version;
await db.SaveChangesAsync();
trans.Commit();
var hubContext = GlobalHost.ConnectionManager.GetHubContext <AuctionHub>();
hubContext.Clients.All.refresh(auction.IdAuction, auction.CurrentPrice, db.User.Find(idUser).Email);
hubContext.Clients.All.bidding(db.User.Find(idUser).Email);
string v = @Convert.ToBase64String(auction.AuctionRowVersion);
hubContext.Clients.All.newversion(auction.IdAuction, v);
var hubC = GlobalHost.ConnectionManager.GetHubContext <TokenHub>();
if (lastUser == null)
{
hubC.Clients.All.tokens(null, null, user.Id, user.NumberOfTokens);
}
else
{
int number = db.User.Find(idLastUser).NumberOfTokens;
hubC.Clients.All.tokens(idLastUser, number, user.Id, user.NumberOfTokens);
}
return(RedirectToAction("Index"));
} catch (Exception ex)
{
trans.Rollback();
log.Error("Bid is not successful!");
return(RedirectToAction("Index"));
}
}
}