public async Task <DateTime?> GetLastDeliveryTimestampAsync(NotificationTransport notificationTransport)
{
var lastNotification = await db.NotificationDeliveries.Where(d => d.NotificationTransportId == notificationTransport.Id)
.OrderByDescending(d => d.CreateTime)
.FirstOrDefaultAsync();
return(lastNotification?.CreateTime);
}
public DateTime?GetLastDeliveryTimestamp(NotificationTransport notificationTransport)
{
var lastNotification = db.NotificationDeliveries.Where(d => d.NotificationTransportId == notificationTransport.Id)
.OrderByDescending(d => d.CreateTime)
.FirstOrDefault();
return(lastNotification?.CreateTime);
}
public async Task AddNotificationTransport(NotificationTransport transport)
{
DeleteOldNotificationTransports(transport.GetType(), transport.UserId);
transport.IsDeleted = false;
db.NotificationTransports.Add(transport);
await db.SaveChangesAsync();
}
public async Task AddNotificationTransport(NotificationTransport transport)
{
using (var transaction = db.Database.BeginTransaction())
{
await DeleteOldNotificationTransports(transport.GetType(), transport.UserId);
transport.IsDeleted = false;
db.NotificationTransports.Add(transport);
await db.SaveChangesAsync();
await transaction.CommitAsync();
}
}
public async Task SendDeliveriesOfOneType(NotificationTransport transport, NotificationType notificationType, List <NotificationDelivery> deliveries)
{
if (deliveries.Count == 0)
{
return;
}
if (deliveries.Count == 1)
{
var delivery = deliveries[0];
var course = courseManager.FindCourse(delivery.Notification.CourseId);
if (course == null)
{
log.Warn($"Can't find course {delivery.Notification.CourseId}");
await notificationsRepo.MarkDeliveryAsFailed(delivery);
return;
}
try
{
await notificationSender.SendAsync(delivery);
await notificationsRepo.MarkDeliveryAsSent(delivery.Id);
}
catch (Exception e)
{
log.Warn($"Can\'t send notification {delivery.NotificationId} to {delivery.NotificationTransport}: {e}. Will try later");
await notificationsRepo.MarkDeliveryAsFailed(delivery);
}
}
else
{
try
{
await notificationSender.SendAsync(deliveries);
await notificationsRepo.MarkDeliveriesAsSent(deliveries.Select(d => d.Id).ToList());
}
catch (Exception e)
{
log.Warn($"Can\'t send multiple notifications [{string.Join(", ", deliveries.Select(d => d.NotificationId))}] to {deliveries[0].NotificationTransport}: {e}. Will try later");
await notificationsRepo.MarkDeliveriesAsFailed(deliveries);
}
}
}
public async Task AddNotificationTransport(NotificationTransport transport)
{
using (var transaction = db.Database.BeginTransaction())
{
DeleteOldNotificationTransports(transport.GetType(), transport.UserId);
/*
* if (transport is MailNotificationTransport)
* DeleteOldNotificationTransports<MailNotificationTransport>(transport.UserId);
* if (transport is TelegramNotificationTransport)
* DeleteOldNotificationTransports<TelegramNotificationTransport>(transport.UserId);
*/
transport.IsDeleted = false;
db.NotificationTransports.Add(transport);
await db.SaveChangesAsync().ConfigureAwait(false);
transaction.Commit();
}
}
public IQueryable <NotificationDelivery> GetTransportDeliveries(NotificationTransport notificationTransport, DateTime from)
{
return(db.NotificationDeliveries.Where(d => d.NotificationTransportId == notificationTransport.Id && d.CreateTime > from));
}
