Task IUserNotifier.NotifyOfferAdded(User user, BuyOffer offer, Auctions.Auction auction)
{
Contract.Requires(user != null);
Contract.Requires(offer != null);
Contract.Requires(auction != null);
throw new NotImplementedException();
}
public void BuyOfferIsBuyoutOfferIfItIsEqualToAuctionBuyoutPrice()
{
var offer = new BuyOffer
{
Auction = new TestAuction { BuyoutPrice = new Money(100.0m, new TestCurrency()) },
Amount = 100.0m,
};
Assert.That(offer.IsBuyout, Is.True);
}
public void BuyOfferIsNotBuyoutOfferWhenBuyoutIsNotEnabled()
{
var offer = new BuyOffer
{
Auction = new TestAuction(),
Amount = 100.0m,
};
Assert.That(offer.IsBuyout, Is.False);
}
public void BuyOfferIsNotBuyoutOfferIfItIsLessThanAuctionBuyoutPrice()
{
var offer = new BuyOffer
{
Auction = new TestAuction { BuyoutPrice = new Money(100.0m, new TestCurrency()) },
Amount = 75.0m,
};
Assert.That(offer.IsBuyout, Is.False);
}
public async Task NotifyOfferAdded(User user, BuyOffer offer, Auction auction)
{
await mMailService.SendAsync(new OfferAddedMail
{
UserMail = user.Email,
UserFirstName = user.FirstName,
AuctionId = auction.Id,
AuctionTitle = auction.Title,
OfferMoney = offer.Money
});
}
public async Task Bid(int auctionId, string buyerId, decimal bidAmount, IValidationErrorNotifier errors)
{
var auction = await GetById(auctionId);
if(!auction.IsBiddingEnabled)
{
errors.AddError(Lang.Buy.BiddingNotEnabled);
return;
}
if(!CanBeBought(auction, buyerId, errors))
return;
if(bidAmount < auction.MinBidAllowed)
{
errors.AddError(String.Format(Lang.Buy.TooLowBid, new Money(auction.MinBidAllowed, auction.MinimumPrice.Currency)));
return;
}
var previouslyBestOffer = auction.BestOffer;
var userOffer = new BuyOffer
{
UserId = buyerId,
Date = DateTime.Now,
Amount = bidAmount,
};
auction.Offers.Add(userOffer);
await mContext.SaveChangesAsync();
await mUserNotifier.NotifyOfferAdded(userOffer.User, userOffer, auction);
if(previouslyBestOffer != null)
{
await mUserNotifier.NotifyOutbid(previouslyBestOffer.User, auction);
}
}
public static void Add(AuctioneerDbContext context)
{
var rndGenerator = new Random(Seed: 746293114);
var imageInitializer = new AuctionImageInitializer();
var categoryCount = context.Categories.Count();
var userIds = context.Users.Select(x => x.Id).ToList();
var currencies = context.Currencies.ToList();
var auctions = new Auction[100000];
for(int i = 0; i < auctions.Length; ++i)
{
var creationDate = new DateTime
(
day : rndGenerator.Next(1, 29),
month : rndGenerator.Next(1, 13),
year : rndGenerator.Next(2010, 2016),
hour : rndGenerator.Next(0, 24),
minute : rndGenerator.Next(0, 60),
second : rndGenerator.Next(0, 60)
);
if(creationDate > DateTime.Now)
creationDate = DateTime.Now;
auctions[i] = new Auction
{
CategoryId = rndGenerator.Next(categoryCount) + 1,
Title = "The auction #" + (i + 1),
Description = "The description of auction number " + (i + 1),
SellerId = userIds[rndGenerator.Next(userIds.Count)],
CreationDate = creationDate,
EndDate = creationDate.AddDays(rndGenerator.NextDouble() * 14),
PhotoCount = 0
};
bool hasBuyoutPrice = (rndGenerator.Next(100) + 1) < 90;
if(hasBuyoutPrice)
{
auctions[i].BuyoutPrice = new Money(rndGenerator.Next(1, 1000), currencies[rndGenerator.Next(currencies.Count)]);
}
bool isBiddingEnabled = !hasBuyoutPrice || ((rndGenerator.Next(100) + 1) < 30 && (auctions[i].BuyoutPrice.Amount >= 10.0m));
if(isBiddingEnabled)
{
auctions[i].MinimumPrice = new Money(rndGenerator.Next(1, 1000), currencies[rndGenerator.Next(currencies.Count)]);
}
if(isBiddingEnabled && hasBuyoutPrice)
{
var fixedAmount = Math.Min(auctions[i].MinimumPrice.Amount, auctions[i].BuyoutPrice.Amount * 0.5m);
auctions[i].MinimumPrice = new Money(fixedAmount, auctions[i].BuyoutPrice.Currency);
}
bool hasBidOffer = (rndGenerator.Next(100) + 1) < 90;
if(isBiddingEnabled && hasBidOffer)
{
var offerCountProbability = new int[100];
for(int x = 0; x < 30; ++x) offerCountProbability[x] = 1;
for(int x = 30; x < 60; ++x) offerCountProbability[x] = 2;
for(int x = 60; x < 80; ++x) offerCountProbability[x] = 3;
for(int x = 80; x < 95; ++x) offerCountProbability[x] = 4;
for(int x = 95; x < 100; ++x) offerCountProbability[x] = 5;
var offerCount = offerCountProbability[rndGenerator.Next(offerCountProbability.Length)];
var previousOfferDate = auctions[i].CreationDate.AddDays(1);
var previousOfferAmount = 0.0m;
for(int x = 0; x < offerCount; ++x)
{
var minimumPossibleOffer = Math.Max(Math.Ceiling(auctions[i].MinimumPrice.Amount), previousOfferAmount + 1);
var maximumPossibleOffer = Math.Floor(hasBuyoutPrice ? auctions[i].BuyoutPrice.Amount * 0.9m : 1000.0m);
if(minimumPossibleOffer >= maximumPossibleOffer)
break;
var offer = new BuyOffer
{
AuctionId = i + 1,
UserId = userIds[rndGenerator.Next(userIds.Count)],
Date = previousOfferDate.AddHours(rndGenerator.Next(1, 24)),
Amount = rndGenerator.Next((int)minimumPossibleOffer, (int)maximumPossibleOffer)
};
previousOfferDate = offer.Date;
previousOfferAmount = offer.Amount;
auctions[i].Offers.Add(offer);
}
}
bool hasBeenBoughtOut = (rndGenerator.Next(100) + 1) < 75;
if(hasBeenBoughtOut && hasBuyoutPrice)
{
var lastOfferDate = (auctions[i].Offers.Any()) ? auctions[i].Offers.Last().Date : auctions[i].CreationDate;
var buyoutOffer = new BuyOffer
{
AuctionId = i + 1,
UserId = userIds[rndGenerator.Next(userIds.Count)],
Date = lastOfferDate.AddHours(rndGenerator.Next(1, 24)),
Amount = auctions[i].BuyoutPrice.Amount
};
auctions[i].Offers.Add(buyoutOffer);
}
if(auctions[i].Status == AuctionStatus.Active)
{
imageInitializer.CopyRandomThumbnailForAuction(i + 1);
imageInitializer.CopyRandomPhotosForAuction(i + 1);
auctions[i].PhotoCount = imageInitializer.GetAuctionPhotoCount(i + 1);
}
}
InsertAuctions(context, auctions);
}
