public async Task <IActionResult> Transactions(string asset, string address, int offset = 0, int limit = 10)
{
var user = await GetUser(required : true);
// get wallet address
var wallet = _walletProvider.GetChain(asset);
var addrs = wallet.GetAddresses(user.Id);
WalletAddr addr = null;
if (addrs.Any())
{
addr = addrs.First();
}
else
{
addr = wallet.NewAddress(user.Id);
}
var chainAssetSettings = _walletProvider.ChainAssetSettings(asset);
var incommingTxs = wallet.GetAddrTransactions(addr.Address);
if (incommingTxs != null)
{
incommingTxs = incommingTxs.Where(t => t.Direction == WalletDirection.Incomming).OrderByDescending(t => t.ChainTx.Date);
}
else
{
incommingTxs = new List <WalletTx>();
}
var model = new UserTransactionsViewModel
{
User = user,
Asset = asset,
DepositAddress = addr.Address,
ChainAssetSettings = _walletProvider.ChainAssetSettings(asset),
AssetSettings = _settings.Assets[asset],
Wallet = wallet,
TransactionsIncomming = incommingTxs.Skip(offset).Take(limit),
TxsIncommingOffset = offset,
TxsIncommingLimit = limit,
TxsIncommingCount = incommingTxs.Count(),
};
return(View(model));
}
public async Task <IActionResult> Deposit(string asset)
{
var user = await GetUser(required : true);
if (_walletProvider.IsFiat(asset))
{
return(RedirectToAction("DepositFiat", new { asset = asset }));
}
var wallet = _walletProvider.GetChain(asset);
var addrs = wallet.GetAddresses(user.Id);
WalletAddr addr = null;
if (addrs.Any())
{
addr = addrs.First();
}
else
{
if (!wallet.HasTag(user.Id))
{
wallet.NewTag(user.Id);
wallet.Save();
}
addr = wallet.NewAddress(user.Id);
wallet.Save();
}
var model = new DepositViewModel
{
User = user,
Asset = asset,
DepositAddress = addr.Address,
};
return(View(model));
}
public static async Task <AddressIncommingTxs> CheckAddressIncommingTxsAndUpdateWalletAndExchangeBalance(IEmailSender emailSender, ExchangeSettings settings, string asset, IWallet wallet, ChainAssetSettings chainAssetSettings, ApplicationUser user, WalletAddr addr)
{
// create and test backend connection
var via = new ViaJsonRpc(settings.AccessHttpUrl); //TODO: move this to a ViaRpcProvider in /Services (like IWalletProvider)
via.BalanceQuery(1);
// get wallet transactions
var newlySeenTxs = new List <WalletTx>();
var incommingTxs = wallet.GetAddrTransactions(addr.Address);
if (incommingTxs != null)
{
incommingTxs = incommingTxs.Where(t => t.Direction == WalletDirection.Incomming);
}
else
{
incommingTxs = new List <WalletTx>();
}
foreach (var tx in incommingTxs)
{
if (tx.State == WalletTxState.None)
{
// send email: deposit detected
wallet.SeenTransaction(tx);
newlySeenTxs.Add(tx);
if (!string.IsNullOrEmpty(user.Email))
{
await emailSender.SendEmailChainDepositDetectedAsync(user.Email, asset, wallet.AmountToString(tx.AmountOutputs()), tx.ChainTx.TxId);
}
}
}
var unackedTxs = wallet.GetAddrUnacknowledgedTransactions(addr.Address);
if (unackedTxs != null)
{
unackedTxs = unackedTxs.Where(t => t.Direction == WalletDirection.Incomming && t.ChainTx.Confirmations >= chainAssetSettings.MinConf);
}
else
{
unackedTxs = new List <WalletTx>();
}
BigInteger newDeposits = 0;
foreach (var tx in unackedTxs)
{
newDeposits += tx.AmountOutputs();
// send email: deposit confirmed
await emailSender.SendEmailChainDepositConfirmedAsync(user.Email, asset, wallet.AmountToString(tx.AmountOutputs()), tx.ChainTx.TxId);
}
// ack txs and save wallet
IEnumerable <WalletTx> justAckedTxs = unackedTxs;
if (unackedTxs.Any())
{
justAckedTxs = new List <WalletTx>(unackedTxs); // wallet.Save will kill unackedTxs because they are no longer unacked
wallet.AcknowledgeTransactions(unackedTxs);
wallet.Save();
}
else if (newlySeenTxs.Any())
{
wallet.Save();
}
// register new deposits with the exchange backend
foreach (var tx in justAckedTxs)
{
var amount = wallet.AmountToString(tx.AmountOutputs());
var source = new Dictionary <string, object>();
source["txid"] = tx.ChainTx.TxId;
var businessId = tx.Id;
via.BalanceUpdateQuery(user.Exchange.Id, asset, "deposit", businessId, amount, source);
}
return(new AddressIncommingTxs {
IncommingTxs = incommingTxs, NewlySeenTxs = newlySeenTxs, JustAckedTxs = justAckedTxs, NewDeposits = newDeposits
});
}