/// <summary>
/// SignalR endpoint for sending chat messages.
/// </summary>
/// <param name="game"></param>
/// <param name="message"></param>
/// <returns></returns>
public async Task SendMessage(int game, string message)
{
var g = GamesController.FindGame(game);
if (g is null)
{
return;
}
var user = await _userManager.GetUserAsync(Context.User);
var msg = g.AddChatMessage(user, message);
await Clients.Users(g.Players.Select(p => p.GetUser().Id).ToList()).SendAsync("OnNewChatMessage", msg);
}