protected virtual async Task <UserIdentifier[]> GetUsers(NotificationInfo notificationInfo)
{
List <UserIdentifier> userIds;
if (!notificationInfo.UserIds.IsNullOrEmpty())
{
//Directly get from UserIds
userIds = notificationInfo
.UserIds
.Split(",")
.Select(uidAsStr => UserIdentifier.Parse(uidAsStr))
.Where(uid => SettingManager.GetSettingValueForUser <bool>(NotificationSettingNames.ReceiveNotifications, uid.TenantId, uid.UserId))
.ToList();
}
else
{
//Get subscribed users
var tenantIds = GetTenantIds(notificationInfo);
List <NotificationSubscriptionInfo> subscriptions;
if (tenantIds.IsNullOrEmpty() ||
(tenantIds.Length == 1 && tenantIds[0] == NotificationInfo.AllTenantIds.To <int>()))
{
//Get all subscribed users of all tenants
subscriptions = await _notificationStore.GetSubscriptionsAsync(
notificationInfo.NotificationName,
notificationInfo.EntityTypeName,
notificationInfo.EntityId
);
}
else
{
//Get all subscribed users of specified tenant(s)
subscriptions = await _notificationStore.GetSubscriptionsAsync(
tenantIds,
notificationInfo.NotificationName,
notificationInfo.EntityTypeName,
notificationInfo.EntityId
);
}
//Remove invalid subscriptions
var invalidSubscriptions = new Dictionary <Guid, NotificationSubscriptionInfo>();
//TODO: Group subscriptions per tenant for potential performance improvement
foreach (var subscription in subscriptions)
{
using (CurrentUnitOfWork.SetTenantId(subscription.TenantId))
{
if (!await _notificationDefinitionManager.IsAvailableAsync(notificationInfo.NotificationName, new UserIdentifier(subscription.TenantId, subscription.UserId)) ||
!SettingManager.GetSettingValueForUser <bool>(NotificationSettingNames.ReceiveNotifications, subscription.TenantId, subscription.UserId))
{
invalidSubscriptions[subscription.Id] = subscription;
}
}
}
subscriptions.RemoveAll(s => invalidSubscriptions.ContainsKey(s.Id));
//Get user ids
userIds = subscriptions
.Select(s => new UserIdentifier(s.TenantId, s.UserId))
.ToList();
}
if (!notificationInfo.ExcludedUserIds.IsNullOrEmpty())
{
//Exclude specified users.
var excludedUserIds = notificationInfo
.ExcludedUserIds
.Split(",")
.Select(uidAsStr => UserIdentifier.Parse(uidAsStr))
.ToList();
userIds.RemoveAll(uid => excludedUserIds.Any(euid => euid.Equals(uid)));
}
return(userIds.ToArray());
}
protected virtual async Task <List <UserNotification> > SaveUserNotifications(UserIdentifier[] users, NotificationInfo notificationInfo)
{
var userNotifications = new List <UserNotification>();
var tenantGroups = users.GroupBy(user => user.TenantId);
foreach (var tenantGroup in tenantGroups)
{
using (_unitOfWorkManager.Current.SetTenantId(tenantGroup.Key))
{
var tenantNotificationInfo = new TenantNotificationInfo(tenantGroup.Key, notificationInfo);
await _notificationStore.InsertTenantNotificationAsync(tenantNotificationInfo);
await _unitOfWorkManager.Current.SaveChangesAsync(); //To get tenantNotification.Id.
var tenantNotification = tenantNotificationInfo.ToTenantNotification();
foreach (var user in tenantGroup)
{
var userNotification = new UserNotificationInfo
{
TenantId = tenantGroup.Key,
UserId = user.UserId,
TenantNotificationId = tenantNotificationInfo.Id
};
await _notificationStore.InsertUserNotificationAsync(userNotification);
userNotifications.Add(userNotification.ToUserNotification(tenantNotification));
}
await CurrentUnitOfWork.SaveChangesAsync(); //To get Ids of the notifications
}
}
return(userNotifications);
}