public void Join(string userName)
{
lock (ParticipantsConnectionLock)
{
var userId = Context.User.GetClaim(OpenIdConnectConstants.Claims.Subject);
AllConnectedParticipants.Add(new ChatParticipantViewModel()
{
DisplayName = userName,
Email = Context.User.Identity.Name,
Status = EnumChatParticipantStatus.Online,
UserId = userId,
HubContextId = Context.ConnectionId
});
var chatGrooup = this._ctx.Participants.Include(d => d.User)
.Join(
this._ctx.Participants.Include(d => d.User)
, p1 => p1.Group.Id, p2 => p2.Group.Id,
(p1, p2) => new { p2, p1 })
.Join(
AllConnectedParticipants,
p => p.p2.User.Id, cp => cp.UserId,
(p, cp) => new { p2 = p.p2, p1 = p.p1, HubContextId = cp.HubContextId }
)
.Where(d => d.p2.Id != d.p1.Id && d.p1.User.Id == userId)
.Select(d => d.HubContextId);
// This will be used as the user's unique ID to be used on ng-chat as the connected user.
// You should most likely use another ID on your application
Clients.Caller.SendAsync("generatedUserId", Context.ConnectionId);
Clients.Clients(chatGrooup.Select(d => d).ToArray()).SendAsync("friendsListChanged", AllConnectedParticipants.Last());
}
}