public async Task ProcessPayment(Guid userId, decimal amount, WalletTransactionType type)
{
if (type != WalletTransactionType.ServiceFee)
{
throw new NotImplementedException();
}
using (var transaction = await context.Database.BeginTransactionAsync())
{
var wallet = await context.Wallets.FirstOrDefaultAsync(w => w.UserId == userId && w.Currency == Currency.SPX);
if (wallet == null)
{
wallet = new Wallet()
{
UserId = userId,
Amount = 0,
Currency = Currency.SPX,
};
context.Wallets.Add(wallet);
await context.SaveChangesAsync();
}
context.Add(new WalletTransaction
{
Id = Guid.NewGuid(),
Amount = amount,
DateCreated = DateTime.UtcNow,
Currency = wallet.Currency,
Type = type,
Status = WalletTransactionStatus.Compleated,
Wallet = wallet,
WalletId = wallet.Id
});
wallet.Amount += amount;
await context.SaveChangesAsync();
transaction.Commit();
}
}
private void ProcessPayment(Wallet wallet, BlockchainTransaction blockchainTransaction)
{
wallet.Amount += blockchainTransaction.Amount;
if (blockchainTransaction.Status == BlockchainTransactionStatus.ConfirmedAndValidated)
{
context.Add(new WalletTransaction
{
Id = Guid.NewGuid(),
Amount = blockchainTransaction.Amount,
DateCreated = DateTime.UtcNow,
Currency = wallet.Currency,
BlockchainTransaction = blockchainTransaction,
BlockchainTransactionId = blockchainTransaction.Id,
Type = WalletTransactionType.WalletDeposit,
Status = WalletTransactionStatus.Compleated,
Wallet = wallet,
WalletId = wallet.Id
});
}
}
public async Task <(Guid requestId, string withdrawalCode)> CreateWithdrawalRequest(CreateWithdrawalRequestModel model)
{
logger.LogInformation($"{model} Starting...");
decimal amountCommission = 1m;
var finalAmount = model.Amount - amountCommission;
if (model.Amount <= 0 || finalAmount <= 0)
{
throw new ArgumentException("ErrorAmountMustBeGreaterZero");
}
var wallet = await context.Wallets.FirstAsync(x => x.Currency == model.Currency && x.UserId == model.UserId);
if (wallet.Amount < model.Amount)
{
throw new ArgumentException("ErrorNotEnoughMoney");
}
if (wallet.Currency != Currency.SPX)
{
throw new ArgumentException($"Withdrawal requests from {wallet.Currency} not allowed");
}
wallet.Amount -= model.Amount;
var code = new PasswordGenerator(20).IncludeLowercase().IncludeUppercase().IncludeNumeric().Next();
var walletTransaction = new WalletTransaction
{
Id = Guid.NewGuid(),
Amount = model.Amount,
DateCreated = DateTime.UtcNow,
Currency = Currency.SPX,
Type = WalletTransactionType.WalletWithdraw,
WithdrawAddress = model.Wallet,
Status = WalletTransactionStatus.New,
Wallet = wallet,
};
context.Add(walletTransaction);
var request = new WithdrawalRequest
{
Id = Guid.NewGuid(),
Amount = model.Amount,
AmountWithCommission = finalAmount,
Currency = model.Currency,
UserId = model.UserId,
Status = WithdrawalRequestStatus.New,
Wallet = model.Wallet,
Code = code,
DateCreate = DateTime.UtcNow,
IsApprovedByManager = false,
IsApprovedByUser = false,
WalletTransactionId = walletTransaction.Id
};
context.Add(request);
await context.SaveChangesAsync();
return(request.Id, code);
}