public async Task <List <Responses.Watcher> > GetUserWatchers(string userId = null, string currencyId = null, string indicatorId = null)
{
// Get user
var user = await _mainDbContext.Users.FindAsync(userId);
// Check if it exists
if (user == null)
{
throw new NotFoundException(UserMessage.UserNotFound);
}
// Get user watchers
var userWatchers = await _mainDbContext.Watchers.Where(WatcherExpression.Filter(userId, currencyId, indicatorId)).ToListAsync();
// Response
var response = _mapper.Map <List <Responses.Watcher> >(userWatchers);
// Return
return(response);
}
public static void BuildLines(List <Currency> currencies, List <Indicator> indicators, List <Watcher> watchers, List <Line> lines, DateTime time, int dependencyLevel, int stopAt)
{
// For each currency
foreach (var currency in currencies)
{
// For each indicator of the given level
foreach (var indicator in indicators.Where(x => x.DependencyLevel == dependencyLevel))
{
// Get all watchers for this currency indicator pair
var filteredWatchers = watchers.Where(WatcherExpression.Filter(null, currency.CurrencyId, indicator.IndicatorId).Compile()).ToList();
// Build value and averages
var value = IndicatorBuilder.BuildValue(currency, indicator, lines);
var averageBuy = BuildWeightedAverageBuy(filteredWatchers);
var averageSell = BuildWeightedAverageSell(filteredWatchers);
// Create line
var line = new Line(
time,
indicator.UserId,
currency.CurrencyId,
indicator.IndicatorId,
value,
averageBuy,
averageSell,
currency.Price);
// Add line
lines.Add(line);
}
}
// Do the same with the next level recursively
if (dependencyLevel < stopAt)
{
BuildLines(currencies, indicators, watchers, lines, time, dependencyLevel + 1, stopAt);
}
}
