public async Task <UserFollowedEvent> AddFollowedEvent(string userId, int eventId)
{
var user = await userManager.FindByIdAsync(userId);
if (user != null)
{
var _event = await db.Events.Where(e => e.Id == eventId).FirstOrDefaultAsync();
if (_event == null)
{
throw new DbModelNullException(ExceptionMessageConstants.NullObject);
}
UserFollowedEvent ufe = new UserFollowedEvent()
{
Event = _event,
EventId = eventId,
User = user,
UserId = userId
};
db.UserFollowedEvents.Add(ufe);
await db.SaveChangesAsync();
return(ufe);
}
else
{
throw new DbModelNullException(ExceptionMessageConstants.NullObject);
}
}
private async Task SendUserFollowedEventAsync(Guid followerId, Guid followedUserId)
{
var @event = new UserFollowedEvent {
FollowerId = followerId, FollowedUserId = followedUserId
};
await SendEvent(@event);
}
// User events
private void FollowedUser(object sender, UserFollowedEvent e)
{
if (e.InResultOf == UserFollowedRaisedInResultOf.AccountUserFollowingAnotherUser)
{
Console.WriteLine($">>> Account user ({e.FollowedBy.ScreenName}) is now following {e.FollowedUser.ScreenName}");
}
else
{
Console.WriteLine($">>> Account user ({e.FollowedUser.ScreenName}) is now being followed by {e.FollowedBy.ScreenName}");
}
}
private void TryRaiseFollowedEvents(string eventName, JObject jsonObjectEvent)
{
var json = jsonObjectEvent.ToString();
var followEvent = jsonObjectEvent[eventName];
var followedUsersEvents = ExtractUserToUserEventDTOs(followEvent);
followedUsersEvents.ForEach(followedUsersEvent =>
{
var sourceUser = _factories.CreateUser(followedUsersEvent.Source);
var targetUser = _factories.CreateUser(followedUsersEvent.Target);
var timestamp = long.Parse(followedUsersEvent.CreatedTimestamp);
var dateOffset = DateTimeOffset.FromUnixTimeMilliseconds(timestamp);
var accountActivityEvent = new AccountActivityEvent <Tuple <IUser, IUser> >(new Tuple <IUser, IUser>(sourceUser, targetUser))
{
AccountUserId = AccountUserId,
EventDate = dateOffset.UtcDateTime,
Json = json
};
if (followedUsersEvent.Type == "follow")
{
var eventArgs = new UserFollowedEvent(accountActivityEvent);
this.Raise(UserFollowed, eventArgs);
if (eventArgs.InResultOf == UserFollowedRaisedInResultOf.Unknown)
{
this.Raise(EventKnownButNotFullySupportedReceived, new EventKnownButNotSupported(json, eventArgs));
}
}
else if (followedUsersEvent.Type == "unfollow")
{
var eventArgs = new UserUnfollowedEvent(accountActivityEvent);
this.Raise(UserUnfollowed, eventArgs);
if (eventArgs.InResultOf == UserUnfollowedRaisedInResultOf.Unknown)
{
this.Raise(EventKnownButNotFullySupportedReceived, new EventKnownButNotSupported(json, eventArgs));
}
}
else
{
this.Raise(UnsupportedEventReceived, new UnsupportedMessageReceivedEvent(jsonObjectEvent.ToString()));
}
});
}
