public string CreateOrder(Guid merchantAccountId, string fiatCurrency, int cryptoId, decimal amount, PaymentType paymentType, string userToken, string clientIP)
{
var accountDAC = new MerchantAccountDAC();
var account = accountDAC.GetById(merchantAccountId);
if (!account.IsAllowAcceptPayment)
{
throw new CommonException(ReasonCode.Not_Allow_Withdrawal, Resources.禁止收款);
}
var coin = new CryptocurrencyDAC().GetById(cryptoId);
if (!coin.Status.HasFlag(CryptoStatus.Pay))
{
throw new CommonException(ReasonCode.CURRENCY_FORBIDDEN, Resources.CurrencyForbidden);
}
if (coin.Enable == (byte)CurrencyStatus.Forbidden)
{
throw new CommonException(ReasonCode.CURRENCY_FORBIDDEN, Resources.CurrencyForbidden);
}
var order = new RedisOrderDTO()
{
FiatAmount = amount,
CryptoId = cryptoId,
FiatCurrency = fiatCurrency,
MerchantGuid = account.Id,
OrderNo = NumberGenerator.GenerateUnixOrderNo(),
CountryId = account.CountryId,
Markup = account.Markup,
Type = paymentType,
UserId = Guid.Empty
};
Guid?userAccountId = null;
if (!string.IsNullOrEmpty(userToken))
{
if (!userToken.StartsWith(Constant.PAYMENT_CODE_PREFIX))
{
throw new CommonException(ReasonCode.GENERAL_ERROR, Resources.无效的用户Token);
}
var paymentInfo = RedisHelper.Get <PaymentCodeDTO>(
Constant.REDIS_PAYMENT_CODE_DBINDEX,
$"{Constant.REDIS_PAYMENT_CODE_PREFIX}{userToken}");
if (paymentInfo == null)
{
throw new CommonException(ReasonCode.GENERAL_ERROR, Resources.无效的用户Token);
}
userAccountId = paymentInfo.UserId;
}
if (userAccountId.HasValue)
{
order.UserId = userAccountId.Value;
SendPayOrderModel model = new SendPayOrderModel();
model.OrderNo = order.OrderNo;
model.UserAccountId = userAccountId.Value.ToString();
MerchantMSMQ.PubPayOrder(model, 0);
}
RedisHelper.StringSet($"fiiipos:order:{ order.OrderNo}", JsonConvert.SerializeObject(order), TimeSpan.FromMinutes(30));
return(order.OrderNo);
}
private OrderWithdrawalFee CalculateOrderAmount(ref Order order, RedisOrderDTO orderDto, MerchantAccount account, Cryptocurrency coin)
{
var orderWithdrawalFee = new OrderWithdrawalFee()
{
Timestamp = DateTime.UtcNow
};
var wallet = new MerchantWalletDAC().GetByAccountId(account.Id, new CryptocurrencyDAC().GetByCode("FIII").Id);
if (wallet == null || !wallet.SupportReceipt)
{
Excute(ref order);
}
else
{
var exchangeFiiiRate = GetExchangeRate(orderDto.CountryId, order.FiatCurrency, new CryptocurrencyDAC().GetById(wallet.CryptoId));
var fiiiCoin = new CryptocurrencyDAC().GetById(wallet.CryptoId);
//var tempFiatActualAmount = orderDto.FiatAmount * (1 + account.Markup);
var tempFiatActualAmount = orderDto.FiatAmount + (orderDto.FiatAmount * account.Markup).ToSpecificDecimal(4);
var fiiiTransactionFee = ((orderDto.FiatAmount + orderDto.FiatAmount * account.Markup) * account.Receivables_Tier / exchangeFiiiRate)
.ToSpecificDecimal(
fiiiCoin.DecimalPlace);
if (wallet.Balance < fiiiTransactionFee)
{
Excute(ref order);
}
else
{
orderWithdrawalFee.CryptoId = fiiiCoin.Id;
orderWithdrawalFee.Amount = fiiiTransactionFee;
order.ActualFiatAmount = tempFiatActualAmount.ToSpecificDecimal(4);
order.CryptoAmount = ((orderDto.FiatAmount + orderDto.FiatAmount * account.Markup) / order.ExchangeRate).ToSpecificDecimal(coin.DecimalPlace);
order.TransactionFee = 0;
order.ActualCryptoAmount = order.CryptoAmount;
var model = CalculateUnifiedAmount(order.CryptoAmount, order.ActualCryptoAmount, order.UnifiedExchangeRate);
order.UnifiedFiatAmount = model.UnifiedFiatAmount;
order.UnifiedActualFiatAmount = model.UnifiedActualFiatAmount;
}
}
void Excute(ref Order inOrder)
{
var calcModel =
CalculateAmount(orderDto.FiatAmount, account.Markup, account.Receivables_Tier, inOrder.ExchangeRate, coin);
inOrder.ActualFiatAmount = calcModel.FiatTotalAmount;
inOrder.CryptoAmount = calcModel.CryptoAmount;
inOrder.TransactionFee = calcModel.TransactionFee;
inOrder.ActualCryptoAmount = calcModel.ActualCryptoAmount;
var model = CalculateUnifiedAmount(inOrder.CryptoAmount, inOrder.ActualCryptoAmount, inOrder.UnifiedExchangeRate);
inOrder.UnifiedFiatAmount = model.UnifiedFiatAmount;
inOrder.UnifiedActualFiatAmount = model.UnifiedActualFiatAmount;
orderWithdrawalFee.CryptoId = inOrder.CryptoId;
orderWithdrawalFee.Amount = 0;
}
return(orderWithdrawalFee);
}
