private static decimal GetRandomMoney(RedPocket redPackage, decimal min, int n)
{
// RemainCount 剩余的红包数量
// Balance 剩余的钱
if (redPackage.RemainCount <= 0)
{
return(0);
}
if (redPackage.RemainCount == 1)
{
redPackage.RemainCount--;
return(Math.Round(redPackage.Balance * n) / n);
}
var r = new Random();
var max = redPackage.Balance / redPackage.RemainCount * 2;
var money = (decimal)r.NextDouble() * max;
money = money <= min ? min : money;
money = Math.Floor(money * n) / n;
redPackage.RemainCount--;
redPackage.Balance -= money;
return(money);
}
public long Insert(RedPocket model)
{
using (var con = WriteConnection())
{
return(con.ExecuteScalar <long>(@"INSERT INTO RedPockets(AccountId,CryptoCode,Amount,Balance,Count,RemainCount,Message,Timestamp,PassCode,Status,ExpirationDate,CryptoId,OrderNo,FiatAmount) VALUES(@AccountId,@CryptoCode,@Amount,@Balance,@Count,@RemainCount,@Message,@Timestamp,@PassCode,@Status,@ExpirationDate,@CryptoId,@OrderNo,@FiatAmount); SELECT SCOPE_IDENTITY()", model));
}
}
public RedPocket Push(UserAccount userAccount, Guid accountId, int cryptoId, decimal amount, int count, string userPIN, string pin, string message = "")
{
if (userAccount.L1VerifyStatus != Entities.Enums.VerifyStatus.Certified)
{
throw new CommonException(ReasonCode.NOT_VERIFY_LV1, Resources.EMNeedLV1Verfied);
}
if (amount <= 0 || cryptoId <= 0)
{
throw new CommonException(Argument_Error, MessageResources.InvalidDataFormat);
}
if (count <= 0)
{
throw new CommonException(Argument_Error, MessageResources.InvalidDataFormat);
}
if (count > MaxCount)
{
throw new CommonException(Argument_Error, string.Format(MessageResources.RedPocket_MaxCount, MaxCount));
}
if (!string.IsNullOrWhiteSpace(message) && message.Length > 46)
{
throw new CommonException(Argument_Error, MessageResources.RedPocket_MaxMessage);
}
SecurityVerify.Verify(new PinVerifier(), SystemPlatform.FiiiPay, accountId.ToString(), userPIN, pin);
var cryptoDAC = new CryptocurrencyDAC();
var priceDAC = new PriceInfoDAC();
var crypto = cryptoDAC.GetById(cryptoId);
if (crypto == null)
{
throw new SystemErrorException();
}
if (!crypto.Status.HasFlag(Foundation.Entities.Enum.CryptoStatus.RedPocket) || crypto.Enable == 0)
{
throw new CommonException(ReasonCode.CURRENCY_FORBIDDEN, MessageResources.CurrencyForbidden);
}
var min = crypto.DecimalPlace == 8 ? 0.00000001M : crypto.DecimalPlace == 6 ? 0.000001M : 0.00000001M;
var minAmount = count * min;
if (amount < minAmount)
{
throw new CommonException(Push_MinAmount, string.Format(MessageResources.RedPocket_MinAmount, minAmount, crypto.Code));
}
var price = priceDAC.GetPriceByName("USD", crypto.Code);
var max = crypto.DecimalPlace == 8 ? 999999999.999999999M : crypto.DecimalPlace == 6 ? 999999999.999999M : 999999999.999999999M;
var maxAmount = Math.Round(MaxAmount / price, crypto.DecimalPlace);
if (count > 1)
{
maxAmount = Math.Round(MaxAmount * count / price, crypto.DecimalPlace);
}
if (amount >= max || Math.Round(amount, crypto.DecimalPlace) > maxAmount)
{
throw new CommonException(Argument_Error, string.Format(MessageResources.RedPocket_MaxAmount, maxAmount, crypto.Code));
}
var userWalletDAC = new UserWalletDAC();
var redPocketDAC = new RedPocketDAC();
var userWalletStatementDAC = new UserWalletStatementDAC();
var userTransactionDAC = new UserTransactionDAC();
var wallet = userWalletDAC.GetByAccountId(accountId, cryptoId);
if (wallet == null || wallet.Balance < amount)
{
throw new CommonException(ReasonCode.INSUFFICIENT_BALANCE, MessageResources.InsufficientBalance);
}
var fiatAmount = price * amount;
using (var scope = new TransactionScope())
{
try
{
var redPocket = new RedPocket
{
AccountId = accountId,
Status = RedPocketStatus.Actived,
PassCode = GeneralPassCode(),
CryptoCode = crypto.Code,
Amount = amount,
Balance = amount,
Count = count,
RemainCount = count,
Message = message,
Timestamp = DateTime.UtcNow,
ExpirationDate = DateTime.UtcNow.AddMinutes(_expried),
CryptoId = cryptoId,
OrderNo = IdentityHelper.OrderNo(),
FiatAmount = fiatAmount <= 0 ? 0M : Math.Round(fiatAmount, 8)
};
var redPocketId = redPocketDAC.Insert(redPocket);
userTransactionDAC.Insert(new UserTransaction
{
Id = Guid.NewGuid(),
AccountId = accountId,
CryptoId = redPocket.CryptoId,
CryptoCode = redPocket.CryptoCode,
Type = UserTransactionType.PushRedPocket,
DetailId = redPocketId.ToString(),
Status = (byte)redPocket.Status,
Timestamp = redPocket.Timestamp,
Amount = redPocket.Amount,
OrderNo = redPocket.OrderNo
});
userWalletDAC.Decrease(wallet.Id, amount);
userWalletStatementDAC.Insert(new UserWalletStatement
{
WalletId = wallet.Id,
Balance = wallet.Balance - amount,
Amount = 0 - amount,
FrozenAmount = 0,
FrozenBalance = wallet.FrozenBalance,
Action = "Push Red Pocket",
Timestamp = DateTime.UtcNow
});
QueueHelper.DelaySender.Send("FiiiPay_RedPocket", redPocketId);
scope.Complete();
return(redPocket);
}
catch (Exception ex)
{
_log.Error(ex);
throw new SystemErrorException();
}
}
}