public override async Task OnDisconnectedAsync(Exception exception)
{
//get praticipant model by connection id
var participant = await _participantRepo.FindByConnectionIdAsync(Context.ConnectionId);
if (participant == null)
{
return;
}
//get room of participant
var room = await _roomRepo.FindByIdAsync(participant.RoomId);
if (room == null)
{
return;
}
// remove participant from the room
await _participantRepo.RemoveAsync(participant, false);
var activeParticipants = await _participantRepo
.GetAsync(p => p.RoomId == room.Id);
//check if there are participants in the room
if (!activeParticipants.Any())
{
await _participantRepo.SaveChangesAsync();
//if there are no participants in the room, remove room
await _roomRepo.RemoveAsync(room);
return;
}
var players = activeParticipants
.Where(p => p.ParticipantType == ParticipantType.Player)
.AsEnumerable();
//check if there are players in the room
if (!players.Any())
{
//send "Leave Command" for all participants in the room
//command means that everyone in this room must leave it
await Clients.Group(room.Name).SendAsync("LeaveCommand");
}
else
{
await Clients.Group(room.Name).SendAsync("Leave", participant.Adapt <ParticipantViewModel>());
}
await _participantRepo.SaveChangesAsync();
}
