public async Task Trade()
{
var stopwatch = Stopwatch.StartNew();
_logger.LogInformation("Start trading");
var balance = await _stockExchange.GetBalance();
// var baseCurrency = GetBaseCurrency(balance);
var baseCurrency = "BTC";
if (baseCurrency == null)
{
_logger.LogWarning("No money!");
return;
}
_logger.LogInformation($"Balance is {balance.Total[baseCurrency]} {baseCurrency}");
var currencyPairs = (await _stockExchange.GetCurrencyPairs()).ToArray();
var availablePairs = currencyPairs
.Where(cp => cp.BaseCurrency == baseCurrency || cp.TargetCurrency == baseCurrency)
.Select(cp => cp.BaseCurrency == baseCurrency ? cp.TargetCurrency : cp.BaseCurrency)
.ToHashSet();
var usdPairs = FilterPairsByCurrency(currencyPairs, "USD").ToArray();
_logger.LogInformation("USD pairs are: {@Pairs}", usdPairs);
var actualToUsdRates = (await _stockExchange.GetActualRatesAsync(usdPairs, DateTime.UtcNow.AddSeconds(-60)))
.ToDictionary(
x => x.BaseCurrency == "USD" ? x.TargetCurrency : x.BaseCurrency,
x => x.BaseCurrency == "USD"
? x.AverageRate != 0
? 1 / x.AverageRate
: 0
: x.AverageRate);
// var actualToBaseRates = (await _stockExchange.GetActualRatesAsync(basePairs, DateTime.UtcNow.AddSeconds(-60)))
// .Where(x => x.AverageRate != 0)
// .ToDictionary(
// x => x.BaseCurrency == baseCurrency ? x.TargetCurrency : x.BaseCurrency,
// x => x.BaseCurrency == baseCurrency ? 1 / x.AverageRate : x.AverageRate);
_logger.LogInformation("Current rates: {@Rates}", actualToUsdRates);
var previousToUsdRates = _currencyRatesStore.GetLast();
if (previousToUsdRates != null)
{
var predictedToUsdRates = actualToUsdRates.ToDictionary(
x => x.Key,
x => CalculatePredictedRate(previousToUsdRates[x.Key], x.Value));
var(recommendedCurrency, conversionType) = GetRecommendedCurrency(availablePairs, actualToUsdRates, predictedToUsdRates, baseCurrency);
if (recommendedCurrency == baseCurrency)
{
_logger.LogCritical("NO CONVERSION");
}
else
{
_logger.LogCritical($"CONVERT FROM '{baseCurrency}' TO {recommendedCurrency}");
}
_logger.LogInformation("Recommended conversion: {From} - {To}", baseCurrency, recommendedCurrency);
}
_currencyRatesStore.Store(actualToUsdRates);
}