private async Task ProcessInTransactionAsync(InTransaction inTransaction)
{
try
{
IBitcoinService bitcoinService;
if (_memoryCache.TryGetValue($"BitcoinService_{inTransaction.ToWalletId}", out var service))
{
bitcoinService = service as IBitcoinService;
}
else
{
var wallet = await _walletRepository.GetAsync(inTransaction.ToWalletId);
bitcoinService = _bitcoinServiceFactory.CreateForWallet(wallet);
_memoryCache.Set($"BitcoinService_{inTransaction.ToWalletId}", bitcoinService);
}
var getTransactionResponse = bitcoinService.GetTransaction(inTransaction.TxId);
inTransaction.UpdateConfirmations(getTransactionResponse.Confirmations);
await _inTransactionRepository.UpdateAsync(inTransaction);
}
catch (Exception ex)
{
//Log
}
}
public async Task TrackNewAsync()
{
try
{
var wallets = await _walletRepository.GetAllAsync();
foreach (var wallet in wallets)
{
var lastTransaction = await _inTransactionRepository.FindLastAsync(wallet.Id);
var bitcoinService = _bitcoinServiceFactory.CreateForWallet(wallet);
var listSinceBlockResponse = bitcoinService.ListSinceBlock(lastTransaction?.BlockHash);
foreach (var transaction in listSinceBlockResponse.Transactions)
{
var inTransaction = new InTransaction(transaction.TxId, wallet.Id, transaction.Amount, transaction.BlockHash);
inTransaction.UpdateConfirmations(transaction.Confirmations);
await _inTransactionRepository.SaveAsync(inTransaction);
}
}
}
catch (Exception ex)
{
//Log
}
}
public async Task <(bool, string)> SendBtcAsync(int fromWalletId, string toWalletAddress, decimal amount)
{
//TODO: get and update transaction
var wallet = await _walletRepository.GetAsync(fromWalletId);
if (wallet == null)
{
return(false, $"Wallet with Id={fromWalletId} not found");
}
if (!wallet.BalanceOut(amount))
{
return(false, $"Wallet with Id={fromWalletId} insufficient funds");
}
await _walletRepository.UpdateAsync(wallet);
string txId;
try
{
var bitcoinService = _bitcoinServiceFactory.CreateForWallet(wallet);
txId = bitcoinService.SendToAddress(toWalletAddress, amount, string.Empty, string.Empty, false);
if (string.IsNullOrEmpty(txId))
{
throw new ApplicationException($"Failed to create out transaction from wallet with Id={wallet.Id}");
}
}
catch (Exception ex)
{
wallet.BalanceIn(amount);
await _walletRepository.UpdateAsync(wallet);
return(false, ex.Message);
}
var outTransaction = new OutTransaction(txId, fromWalletId, toWalletAddress, amount);
await _outTransactionRepository.SaveAsync(outTransaction);
return(true, string.Empty);
}