fix nil pointer

controllers/room.go

@@ -89,6 +89,10 @@ func (c *RoomController) Offer(ctx *gin.Context) {
 	c.helper.Response(ctx, struct{}{}, http.StatusNoContent)
 	{
 		ggid := c.repo.GetRoomGGID(reqModel.RoomId)
+		if ggid == nil {
+			println("ggid is nil, not answering for offer")
+			return
+		}
 		buffer, err := json.Marshal(dto.SetSDPReqModel{
 			PeerDTO: dto.PeerDTO{
 				RoomId: reqModel.RoomId,

repositories/room.go

@@ -556,6 +556,11 @@ func (r *RoomRepository) offerPeer(peer *Peer, roomId string) error {
 		return err
 	}
 	ggid := r.GetRoomGGID(roomId)
+	if ggid == nil {
+		println("[PC] ok not negotiating with peer", peer.ID, "(room is deleted)")
+		peer.HandshakeLock.Unlock()
+		return errors.New("room doesnt have ggid")
+	}
 	reqModel := dto.SetSDPReqModel{
 		GGID: *ggid,
 		PeerDTO: dto.PeerDTO{