async Task <IEnumerable <EntityTag> > GetEntityTagsByEntityReplyIdAsync(int entityId)
{
if (entityId == 0)
{
// return empty collection for new topics
return(null);
}
return(await _entityTagStore.GetByEntityReplyIdAsync(entityId));
}
async Task <IList <int> > SendNotificationsAsync(TEntityReply reply, IList <int> usersToExclude)
{
if (reply == null)
{
throw new ArgumentNullException(nameof(reply));
}
// Compile a list of notified users
var notifiedUsers = new List <int>();
// Follow type name
var name = FollowTypes.Tag.Name;
// Get follow state for reply
var state = reply.GetOrCreate <FollowState>();
// Have notifications already been sent for the reply?
var follow = state.FollowsSent.FirstOrDefault(f =>
f.Equals(name, StringComparison.InvariantCultureIgnoreCase));
if (follow != null)
{
return(notifiedUsers);
}
// Compile all entity tags ids for the entity
var tags = new List <int>();
var entityTags = await _entityTagStore.GetByEntityReplyIdAsync(reply.Id);
if (entityTags != null)
{
foreach (var entityTag in entityTags)
{
if (!tags.Contains(entityTag.TagId))
{
tags.Add(entityTag.TagId);
}
}
}
// Get follows for all reply tags
var follows = await _followStore.QueryAsync()
.Select <FollowQueryParams>(q =>
{
q.Name.Equals(name);
q.ThingId.IsIn(tags.ToArray());
if (usersToExclude.Count > 0)
{
q.CreatedUserId.IsNotIn(usersToExclude.ToArray());
}
})
.ToList();
// Reduce the users for all found follows
var users = await ReduceUsersAsync(follows?.Data, reply);
// No users simply return
if (users == null)
{
return(notifiedUsers);
}
// Send notifications
foreach (var user in users)
{
// Email notifications
if (user.NotificationEnabled(_userNotificationTypeDefaults, EmailNotifications.NewReplyTag))
{
// Track notified
if (!notifiedUsers.Contains(user.Id))
{
notifiedUsers.Add(user.Id);
}
// Notify
await _notificationManager.SendAsync(new Notification(EmailNotifications.NewReplyTag)
{
To = user,
}, reply);
}
// Web notifications
if (user.NotificationEnabled(_userNotificationTypeDefaults, WebNotifications.NewReplyTag))
{
// Track notified
if (!notifiedUsers.Contains(user.Id))
{
notifiedUsers.Add(user.Id);
}
// Notify
await _notificationManager.SendAsync(new Notification(WebNotifications.NewReplyTag)
{
To = user,
From = new User
{
Id = reply.CreatedBy.Id,
UserName = reply.CreatedBy.UserName,
DisplayName = reply.CreatedBy.DisplayName,
Alias = reply.CreatedBy.Alias,
PhotoUrl = reply.CreatedBy.PhotoUrl,
PhotoColor = reply.CreatedBy.PhotoColor
}
}, reply);
}
}
// Update state
state.AddSent(name);
reply.AddOrUpdate(state);
// Persist state
await _entityReplyStore.UpdateAsync(reply);
// Return a list of all notified users
return(notifiedUsers);
}
