//Сделать Ставку На Аукцион
public void MakeBidToAuction(MakeBidVm model)
{
var bidExists = _aplicationDbContext.Bids
.Any(p => p.Price == model.Price &&
p.AuctionId == model.AuctionId &&
p.Description == model.Description &&
p.OrganizationId == model.OrganizationId);
if (bidExists)
{
throw new Exception("Invalid bid");
}
var inValidPriceRange = _aplicationDbContext
.Auctions.Where(p => p.Id == model.AuctionId &&
p.PriceAtMinimum <model.Price &&
p.PriceAtStart> model.Price);
var inStepRange = inValidPriceRange
.Any(p => (p.PriceAtStart - model.Price) % p.PriceChangeStep == 0);
if (!inStepRange)
{
throw new Exception("Invalid bid according price step");
}
Bid bid = new Bid()
{
Price = model.Price,
Description = model.Description,
AuctionId = model.AuctionId,
OrganizationId = model.OrganizationId,
CreatedDate = DateTime.Now
};
_aplicationDbContext.Bids.Add(bid);
_aplicationDbContext.SaveChanges();
}
public void MakeBidToAuction(MakeBidVm model, decimal paymentForBids)
{
var bidExists = _aplicationDbContext.Bids
.Any(p => p.Price == model.Price &&
p.AuctionId == model.AuctionId &&
p.Description == model.Description &&
p.OrganizationId == model.OrganizationId);
if (bidExists)
{
throw new Exception("Invalid bid");
}
var inValidPriceRange = _aplicationDbContext
.Auctions.Where(p => p.Id == model.AuctionId &&
p.PriceAtMinimum <model.Price &&
p.PriceAtStart> model.Price);
var inStepRange = inValidPriceRange
.Any(p => (p.PriceAtStart - model.Price) % p.PriceChangeStep == 0);
if (!inStepRange)
{
throw new Exception("Invalid bid according price step");
}
var organizationTransactions = _aplicationDbContext.Transactions
.Where(p => p.OrganizationId == model.OrganizationId).ToList();
if (organizationTransactions.Count == 0)
{
throw new Exception("Organization has zero balance!");
}
var organizationBalance = organizationTransactions
.Where(p => p.TransactionType == TransactionType.Deposit)
.Sum(p => p.Sum) -
organizationTransactions
.Where(p => p.TransactionType == TransactionType.Withdraw)
.Sum(p => p.Sum);
if (organizationBalance < paymentForBids)
{
throw new Exception("Organization does not have enough money");
}
using (var transaction1 = _aplicationDbContext.Database.BeginTransaction())
{
try
{
Bid bid = new Bid()
{
Price = model.Price,
Description = model.Description,
AuctionId = model.AuctionId,
OrganizationId = model.OrganizationId,
CreatedDate = DateTime.Now,
BidStatus = BidStatus.Active
};
_aplicationDbContext.Bids.Add(bid);
_aplicationDbContext.SaveChanges();
Transaction transaction = new Transaction()
{
Sum = paymentForBids,
TransactionType = TransactionType.Withdraw,
TransactionDate = DateTime.Now,
OrganizationId = model.OrganizationId,
Description = $"Withdraw participation cost for bids {model.AuctionId}"
};
_aplicationDbContext.Transactions.Add(transaction);
_aplicationDbContext.SaveChanges();
transaction1.Commit();
}
catch (Exception ex)
{
transaction1.Rollback();
}
}
}
public void MakeBidToAuction(MakeBidVm model)
{
var bidExists = _aplicationDbContext.Bids
.Any(p => p.Price == model.Price &&
p.AuctionId == model.AuctionId &&
p.Description == model.Description &&
p.OrganizationId == model.OrganizationId);
if (bidExists)
{
throw new Exception("This bid already exists");
}
var auctionExistsAndActive = _aplicationDbContext.Auctions.Any(p => p.Id == model.AuctionId && p.OrganizationId == model.OrganizationId);
if (!auctionExistsAndActive)
{
throw new Exception("Данная организация не участвует в активных аукционах");
}
var organizationDeposits = _aplicationDbContext.Transactions.Where(p => p.OrganizationId == model.OrganizationId && p.TransactionType == TransactionType.Deposit).ToList();
var organizationWithdrawals = _aplicationDbContext.Transactions.Where(p => p.OrganizationId == model.OrganizationId && p.TransactionType == TransactionType.Withdraw).ToList();
var organizationBalance = organizationDeposits.Sum(p => p.Sum) - organizationWithdrawals.Sum(p => p.Sum);
if (organizationBalance < model.Price)
{
throw new Exception($"У организации {_aplicationDbContext.Organizations.SingleOrDefault(p=>p.Id==model.OrganizationId).FullName} не хватает средств на балансе");
}
var inValidPriceRange = _aplicationDbContext
.Auctions.Where(p => p.Id == model.AuctionId &&
p.PriceAtMinimum <model.Price &&
p.PriceAtStart> model.Price);
var inStepRange = inValidPriceRange
.Any(p => (p.PriceAtStart - model.Price) % p.PriceChangeStep == 0);
if (!inStepRange)
{
throw new Exception("Invalid bid according to price step");
}
Bid bid = new Bid()
{
Price = model.Price,
Description = model.Description,
AuctionId = model.AuctionId,
OrganizationId = model.OrganizationId,
CreatedDate = DateTime.Now,
BidStatus = BidStatus.Active
};
_aplicationDbContext.Bids.Add(bid);
Transaction transaction = new Transaction()
{
Description = "Withdraw for making a bid to take part in the auction",
OrganizationId = model.OrganizationId,
Sum = model.Price,
TransactionDate = DateTime.Now,
TransactionType = TransactionType.Withdraw
};
_aplicationDbContext.Transactions.Add(transaction);
_aplicationDbContext.SaveChanges();
}
