SocialPub/PrivaPub/Domain/Social/Notifications.cs

using MongoDB.Driver;
using MongoDB.Entities;

using PrivaPub.Models.Social;

namespace PrivaPub.Domain.Social
{
	public static class Notifications
	{
		public static async Task Add(string avatarId, NotificationType type, string fromAccountId, string fromActorUri, string postId,
			CancellationToken token)
		{
			if (string.IsNullOrEmpty(avatarId) || avatarId == fromAccountId && type != NotificationType.Poll)
				return;
			if ((await Relationships.Hidden.AuthorsHiddenFrom(avatarId, new[] { fromActorUri }, forNotifications: true, token)).Count > 0)
				return;
			try
			{
				await DB.Default.SaveAsync(new Notification
				{
					AvatarId = avatarId,
					Type = type,
					FromAccountId = fromAccountId,
					FromActorURI = fromActorUri,
					PostId = postId,
					DedupeKey = $"{type}|{avatarId}|{fromActorUri}|{postId}"
				}, token);
			}
			catch (MongoWriteException ex) when (ex.WriteError?.Category == ServerErrorCategory.DuplicateKey)
			{
			}
		}
	}
}