public List <PriceModel> GetLastPrices()
{
var lastPrices = _priceRepository.FindPrices()
.GroupBy(x => x.SymbolId)
.Select(x => x.OrderByDescending(y => y.Date).Last())
.Select(x => new PriceModel()
{
SymbolId = x.SymbolId,
Price = x.Price,
Date = x.Date
})
.ToList();
var symbols = _symbolManager.GetSymbols();
foreach (var symbol in symbols)
{
var lastPrice = lastPrices.FirstOrDefault(x => x.SymbolId == symbol.Id);
if (lastPrice == null)
{
string symbolId = symbol.Id;
decimal price = GetLatestPrice(symbol);
DateTime date = DateTime.Now;
lastPrices.Add(new PriceModel()
{
SymbolId = symbolId,
Price = price,
Date = date
});
SaveLastPrice(symbolId, price, 0, DateTime.Now, date);
}
}
return(lastPrices);
}
public void UpdateSymbols()
{
Symbols = _symbolManager.GetSymbols();
}