/// <summary> Updates this object. </summary>
///
/// <remarks> Paul, 05/02/2015. </remarks>
async public override void Update()
{
try
{
//
// don't process transactions if the network is in danger
//
GetInfoResponse info = m_bitshares.GetInfo();
m_suspended = info.blockchain_average_delegate_participation < kMinDelegateParticipation;
if (!m_suspended)
{
Dictionary <string, MarketRow> allMarkets = GetAllMarkets().ToDictionary(m => m.symbol_pair);
m_allCurrencies = m_dataAccess.GetAllCurrencies();
// create any handlers we need for new markets
CheckMarketHandlers(allMarkets);
// get all markets
RecomputeTransactionLimitsAndPrices(allMarkets);
//
// handle bitshares->bitcoin
//
Dictionary <string, BitsharesLedgerEntry> bitsharesDeposits = HandleBitsharesDesposits();
//
// handle bitcoin->bitshares
//
List <TransactionSinceBlock> bitcoinDeposits = HandleBitcoinDeposits();
//
// process bitshares deposits
//
uint siteLastTid = m_dataAccess.GetSiteLastTransactionUid();
foreach (KeyValuePair <string, BitsharesLedgerEntry> kvpDeposit in bitsharesDeposits)
{
// figure out which market each deposit belongs to
foreach (KeyValuePair <string, MarketBase> kvpHandler in m_marketHandlers)
{
BitsharesLedgerEntry l = kvpDeposit.Value;
MarketRow m = allMarkets[kvpHandler.Key];
BitsharesAsset depositAsset = m_allBitsharesAssets[l.amount.asset_id];
if (!HandleCommand(l, kvpHandler.Value, m, kvpDeposit.Key))
{
if (IsDepositForMarket(l.memo, m.symbol_pair))
{
// make sure the deposit is for this market!
if (kvpHandler.Value.CanDepositAsset(CurrencyHelpers.FromBitsharesSymbol(depositAsset.symbol, m_allCurrencies, depositAsset.IsUia())))
{
kvpHandler.Value.HandleBitsharesDeposit(kvpDeposit);
}
}
}
}
// this needs to happen for every transaction
RecomputeTransactionLimitsAndPrices(allMarkets);
}
//
// process bitcoin deposits
//
List <TransactionsRow> pendingTransactions = m_dataAccess.GetAllPendingTransactions();
foreach (TransactionSinceBlock deposit in bitcoinDeposits)
{
// figure out which market each deposit belongs to
foreach (KeyValuePair <string, MarketBase> kvpHandler in m_marketHandlers)
{
if (IsDepositForMarket(deposit.Address, allMarkets[kvpHandler.Key].symbol_pair))
{
kvpHandler.Value.HandleBitcoinDeposit(deposit);
}
}
// this needs to happen for every transaction
RecomputeTransactionLimitsAndPrices(allMarkets);
}
//
// handle changes in transaction status
//
List <TransactionsRow> updatedTrans = new List <TransactionsRow>();
foreach (TransactionsRow pending in pendingTransactions)
{
TransactionsRow updated = m_dataAccess.GetTransaction(pending.received_txid);
if (updated.status != MetaOrderStatus.pending)
{
updatedTrans.Add(updated);
}
}
//
// push any new transactions, make sure site acknowledges receipt
//
uint latestTid = m_dataAccess.GetLastTransactionUid();
if (latestTid > siteLastTid || updatedTrans.Count > 0)
{
List <TransactionsRow> newTrans = m_dataAccess.GetAllTransactionsSince(siteLastTid);
// lump them together
newTrans.AddRange(updatedTrans);
// send 'em all
string result = await ApiPush <List <TransactionsRow> >(Routes.kPushTransactions, newTrans);
if (bool.Parse(result))
{
m_dataAccess.UpdateSiteLastTransactionUid(latestTid);
}
else
{
throw new Exception("API push response unknown! " + result);
}
}
//
// push market updates
//
foreach (KeyValuePair <string, MarketBase> kvpHandler in m_marketHandlers)
{
if (kvpHandler.Value.m_IsDirty)
{
m_dataAccess.UpdateMarketInDatabase(kvpHandler.Value.m_Market);
#pragma warning disable 4014
ApiPush <MarketRow>(Routes.kPushMarket, kvpHandler.Value.m_Market);
#pragma warning restore 4014
kvpHandler.Value.m_IsDirty = false;
}
}
//
// push fee collections
//
if (m_bitcoinFeeAddress != null && m_bitshaaresFeeAccount != null)
{
uint lastFeeId = m_dataAccess.GetSiteLastFeeUid();
// collect our fees
foreach (KeyValuePair <string, MarketBase> kvpHandler in m_marketHandlers)
{
kvpHandler.Value.CollectFees(m_bitcoinFeeAddress, m_bitshaaresFeeAccount);
}
// keep the site up to date, make sure it acknowledges receipt
uint latestFeeId = m_dataAccess.GetLastFeeCollectionUid();
if (latestFeeId > lastFeeId)
{
List <FeeCollectionRow> fees = m_dataAccess.GetFeeCollectionsSince(lastFeeId);
string result = await ApiPush <List <FeeCollectionRow> >(Routes.kPushFees, fees);
if (bool.Parse(result))
{
m_dataAccess.UpdateSiteLastFeeUid(latestFeeId);
}
else
{
throw new Exception("API push response unknown! " + result);
}
}
}
}
//
// wait for a stop command to exit gracefully
//
if (m_lastCommand == null)
{
m_lastCommand = ReadConsoleAsync();
string command = await m_lastCommand;
// remember we never get here unless a command was entered
Console.WriteLine("got command: " + command);
if (command == "stop")
{
m_scheduler.Dispose();
}
m_lastCommand = null;
}
}
catch (UnsupportedTransactionException ute)
{
// ignore so we can move on!
m_dataAccess.IgnoreTransaction(ute.m_trxId);
// log it
LogGeneralException(ute.ToString());
}
catch (Exception e)
{
LogGeneralException(e.ToString());
}
}