public async Task <List <Notification> > AddNotifications(List <Order> orders)
{
// Start watch
var stopwatch = new Stopwatch();
stopwatch.Start();
// Now
var now = DateTime.UtcNow.StripSeconds();
// Create notifications
var notifications = new List <Notification>();
// Orders pending to notify
var ordersPendingToNotify = orders.Where(OrderExpression.PendingToNotify()).ToList();
// For each order pending to notify
foreach (var order in ordersPendingToNotify)
{
// Get user
var user = await _mainDbContext.Users.FindAsync(order.UserId);
// Create message
var message = NotificationBuilder.BuildMessage(
OrderMessage.OrderNotification,
order.CurrencyId,
order.OrderType,
order.Price);
// Create notification
var notification = new Notification(user.UserId, user.PhoneNumber, message, now);
// Add notification
notifications.Add(notification);
// Mark order as notified
order.MarkAsNotified();
// Update order
_mainDbContext.Orders.Update(order);
}
// Add notifications
await _mainDbContext.Notifications.AddRangeAsync(notifications);
// Save
await _mainDbContext.SaveChangesAsync();
// Stop watch
stopwatch.Stop();
// Log
_logger.LogInformation("{@Event}, {@Count}, {@ExecutionTime}", "NotificationsAdded", notifications.Count, stopwatch.Elapsed.TotalSeconds);
// Return
return(notifications);
}
