public async Task <List <Responses.Watcher> > GetAllWatchers(string userId = null, string currencyId = null, string indicatorId = null)
{
// Get user
var user = await _userRepository.GetSingle(userId);
// Check if it exists
if (user == null)
{
throw new NotFoundException(UserMessage.UserNotFound);
}
// Get all watchers
var userWatchers = await _watcherRepository.GetAll(WatcherExpression.WatcherFilter(userId, currencyId, indicatorId));
// Get all default watchers
var defaultWatchers = await _watcherRepository.GetAll(WatcherExpression.DefaultWatcher(currencyId, indicatorId));
// Build with defaults
userWatchers = WatcherBuilder.BuildWatchersWithDefaults(userWatchers, defaultWatchers);
// 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 <DataPoint> lines, int dependencyLevel, int stopAt)
{
foreach (var currency in currencies)
{
foreach (var indicator in indicators)
{
if (indicator.DependencyLevel == dependencyLevel) // We set the consecutive ones
{
// Get latest line for this currency indicator pair
var line = lines.FirstOrDefault(LineExpression.Line(lines[0].Time, currency.CurrencyId, indicator.IndicatorId).Compile());
// Get all watchers for this currency indicator pair
var filteredWatchers = watchers.Where(WatcherExpression.WatcherFilter(null, currency.CurrencyId, indicator.IndicatorId).Compile()).ToList();
// Build
var value = IndicatorBuilder.BuildValue(currency, indicator, lines);
var averageBuy = IndicatorBuilder.BuildAverageBuy(filteredWatchers);
var averageSell = IndicatorBuilder.BuildAverageSell(filteredWatchers);
// Set
line?.Set(value, averageBuy, averageSell);
}
}
}
// Do the same with the next level recursively
if (dependencyLevel < stopAt)
{
BuildLines(currencies, indicators, watchers, lines, dependencyLevel + 1, stopAt);
}
}
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);
}
// Filter user watchers
var userWatchers = await _mainDbContext.Watchers.Where(WatcherExpression.WatcherFilter(userId, currencyId, indicatorId)).ToListAsync();
// Get all default watchers
var defaultWatchers = await _mainDbContext.Watchers.Where(WatcherExpression.DefaultWatcher(currencyId, indicatorId)).ToListAsync();
// Build with defaults
userWatchers = WatcherBuilder.BuildWatchersWithDefaults(userWatchers, defaultWatchers);
// Response
var response = _mapper.Map <List <Responses.Watcher> >(userWatchers);
// Return
return(response);
}
public static List <DataPoint> BuildLines(List <Currency> currencies, List <Indicator> indicators, List <Watcher> watchers)
{
var lines = new List <DataPoint>();
var time = DateTime.Now;
var stopAt = indicators.Count > 0 ? indicators.Max(x => x.DependencyLevel) : 0;
// We create the lines in the order that is given. We build the first level (DependencyLevel = 0) for now
foreach (var currency in currencies)
{
foreach (var indicator in indicators)
{
decimal?value = null;
decimal?averageBuy = null;
decimal?averageSell = null;
if (indicator.DependencyLevel == 0)
{
// Get all watchers for this currency indicator pair
var filteredWatchers = watchers.Where(WatcherExpression.WatcherFilter(null, currency.CurrencyId, indicator.IndicatorId).Compile()).ToList();
// Build
value = IndicatorBuilder.BuildValue(currency, indicator);
averageBuy = IndicatorBuilder.BuildAverageBuy(filteredWatchers);
averageSell = IndicatorBuilder.BuildAverageSell(filteredWatchers);
}
// Add
var dataPoint = new DataPoint(currency.CurrencyId, indicator.IndicatorId, indicator.IndicatorType, indicator.UserId, value, averageBuy, averageSell, true, time);
lines.Add(dataPoint);
}
}
// Now we build the deper levels
if (stopAt > 0)
{
BuildLines(currencies, indicators, watchers, lines, 1, stopAt);
}
// Return
return(lines);
}
