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();
}
public async Task <IActionResult> Post([FromBody] RoomViewModel roomModel)
{
if (roomModel == null)
{
return(StatusCode(500, new InternalServerError("Room model is null")));
}
roomModel.Name = roomModel.Name.Trim();
if (roomModel.Name == string.Empty)
{
return(StatusCode(500, new InternalServerError("Room name cannot be empty")));
}
var existRooms = await _roomRepository.GetAsync(p => p.Name == roomModel.Name);
if (existRooms.Any())
{
var existRoom = existRooms.FirstOrDefault();
var participants = await _participantRepository.GetAsync(p => p.RoomId == existRoom.Id);
if (!participants.Any() && existRoom.FirstConnectionExpired < DateTime.Now)
{
await _roomRepository.RemoveAsync(existRoom);
}
else
{
return(StatusCode(500, new InternalServerError("A room with the same name already exists")));
}
}
var room = new Room
{
Name = roomModel.Name,
ListenSald = Guid.NewGuid().ToString(),
PlayingSald = Guid.NewGuid().ToString(),
FirstConnectionExpired = DateTime.Now.AddMinutes(1),
OwnerGuid = Guid.NewGuid().ToString()
};
await _roomRepository.CreateAsync(room);
return(Ok(room.Adapt <RoomViewModel>()));
}
