/// <summary> Updates this object. </summary>
///
/// <remarks> Paul, 31/01/2015. </remarks>
async public void Update()
{
// ping all the daemons
m_allCurrencies = m_auth.m_Database.GetAllCurrencies();
List <MarketRow> allMarkets = m_auth.m_Database.GetAllMarkets();
List <string> allDaemons = allMarkets.Select <MarketRow, string>(r => r.daemon_url).Distinct().ToList();
foreach (string daemon in allDaemons)
{
bool up = false;
try
{
string response = await Rest.ExecuteGetAsync(ApiUrl(daemon, Routes.kGetAllMarkets), 5000);
ApiError exception = GetExceptionFromResult(response);
if (exception == null)
{
List <MarketRow> daemonMarkets = JsonSerializer.DeserializeFromString <List <MarketRow> >(response);
foreach (MarketRow m in daemonMarkets)
{
m_auth.m_Database.UpdateMarketInDatabase(m);
}
up = true;
}
}
catch (Exception)
{
up = false;
}
m_auth.m_Database.UpdateMarketStatus(daemon, up);
}
// collect market stats
foreach (MarketRow r in allMarkets)
{
decimal btcVolume24h = m_auth.m_Database.Get24HourBtcVolume(r.symbol_pair, r.flipped);
LastPriceAndDelta lastPrice = m_auth.m_Database.GetLastPriceAndDelta(r.symbol_pair);
decimal realisedSpreadPercent = 100 * (1 - r.bid / r.ask);
decimal qa, qb;
if (r.flipped)
{
qb = r.ask;
qa = r.bid;
}
else
{
qa = 1 / r.ask;
qb = 1 / r.bid;
}
decimal buyFee = (qa * r.ask_fee_percent / 100);
decimal sellFee = (qb * r.bid_fee_percent / 100);
decimal buyQuantity = qa - buyFee;
decimal sellQuantity = qb + sellFee;
m_Database.UpdateMarketStats(r.symbol_pair, btcVolume24h, lastPrice.last_price, lastPrice.price_delta, realisedSpreadPercent, buyQuantity, sellQuantity);
}
}
