public async Task ChangeBet(string betId, int[] numbers, int price)
{
if (price <= 0)
{
throw new ArgumentException("Price must be positive number.");
}
using (var session = Casino.GetSessionAsync)
{
var bet = await session.LoadAsync <Bet>(betId).ConfigureAwait(false);
var user = await session.LoadAsync <User>(Id).ConfigureAwait(false);
await Lottery.ValidateOpen(session, bet.LotteryId).ConfigureAwait(false);
user.Credit += bet.Price;
if (user.Credit < price)
{
throw new InsufficientFunds("Not enough credit");
}
bet.Price = price;
bet.Numbers = numbers;
user.Credit -= price;
await session.StoreAsync(bet).ConfigureAwait(false);
await session.StoreAsync(user).ConfigureAwait(false);
await session.SaveChangesAsync().ConfigureAwait(false);
}
}
public async Task PlaceBet(string lotteryId, int[] numbers, int price)
{
if (price <= 0)
{
throw new ArgumentException("Price must be positive number.");
}
using (var session = Casino.GetSessionAsync)
{
var user = await session.LoadAsync <User>(Id).ConfigureAwait(false);
if (user.Credit < price)
{
throw new InsufficientFunds("Not enough credit");
}
var bet = new Bet
{
UserId = Id,
LotteryId = lotteryId,
Numbers = numbers,
Price = price,
BetStatus = Bet.Status.Active
};
await session.StoreAsync(bet).ConfigureAwait(false);
session.Advanced.GetMetadataFor(bet)[Constants.Documents.Metadata.Expires] = DateTime.UtcNow.AddMinutes(10);
user.Credit -= price;
user.Bets.Add(bet.Id);
await Lottery.ValidateOpen(session, lotteryId).ConfigureAwait(false);
session.CountersFor(lotteryId).Increment(DateTime.UtcNow.ToString("yyyy MMMM dd hh:mm"));
await session.SaveChangesAsync().ConfigureAwait(false);
}
}
public async Task DeleteBet(string betId)
{
using (var session = Casino.GetSessionAsync)
{
var user = await session.LoadAsync <User>(Id).ConfigureAwait(false);
var bet = await session.LoadAsync <Bet>(betId).ConfigureAwait(false);
await Lottery.ValidateOpen(session, bet.LotteryId).ConfigureAwait(false);
bet.BetStatus = Bet.Status.Deleted;
if (user.Bets.Remove(betId))
{
user.Credit += bet.Price;
await session.StoreAsync(bet).ConfigureAwait(false);
await session.StoreAsync(user).ConfigureAwait(false);
await session.SaveChangesAsync().ConfigureAwait(false);
}
}
}
