public List <ExchangeHistory> GetHistory(string currency, int days)
{
int addDays = 0;
var tm = AmountHelper.DateTimeToUnixTimestamp(DateTime.UtcNow);
DateTimeOffset tmCheck = new DateTimeOffset(DateTime.UtcNow.Year, DateTime.UtcNow.Month, DateTime.UtcNow.Day, 3, 0, 0,
new TimeSpan(0, 0, 0));
long tmChekDate = ExchangeHelper.DateTimeToUnixTimestamp(tmCheck.UtcDateTime);
if (tmChekDate + 60 * 60 < tmChekDate)
{
addDays = -1;
}
var exchange_stats = _dtoMain.mainDb.GetCollection <ExchangeTicker>("aaexchanges_real_each");
DateTimeOffset dateTimeYesterday = new DateTimeOffset(DateTime.UtcNow.Year, DateTime.UtcNow.Month, DateTime.UtcNow.Day, 0, 0, 0,
new TimeSpan(0, 0, 0)).AddDays(-days + 1 + addDays);
long unixTimeHistory = AmountHelper.DateTimeToUnixTimestamp(dateTimeYesterday.UtcDateTime);
var exchangeStats = exchange_stats.Find(m => m.InCurrency == currency && m.OutCurrency == "BTC" && m.Time >= unixTimeHistory).ToList();
var history = new List <ExchangeHistory>();
var tmp = new Dictionary <long, List <Decimal> >();
var tmpVolume = new Dictionary <long, Decimal>();
foreach (var ex in exchangeStats)
{
if (!tmpVolume.ContainsKey(ex.Time))
{
tmpVolume.Add(ex.Time, 0.0m);
}
tmpVolume[ex.Time] += ex.Volume;
}
foreach (var ex in exchangeStats)
{
if (tmpVolume.ContainsKey(ex.Time) && tmpVolume[ex.Time] > 0 && ex.Volume * 100 / tmpVolume[ex.Time] < 3)
{
continue;
}
if (!tmp.ContainsKey(ex.Time))
{
tmp.Add(ex.Time, new List <decimal>());
}
tmp[ex.Time].Add(ex.Last);
}
int i = 1;
foreach (var ex in tmp)
{
if (i > days)
{
break;
}
var date = UnixTimeStampToDateTime(ex.Key);
var dateStr = date.Day + "-" + date.Month + "-" + date.Year;
history.Add(new ExchangeHistory()
{
Date = dateStr,
Price = ex.Value.Average()
});
i++;
}
return(history);
}
