Extended_Movie.Models.SessionKeeper.CreateSession C# (CSharp) Method

        public Guid CreateSession(Guid movieId)
        {
            var session = new Session(Guid.NewGuid(), movieId);
            if (_timeMarks.ContainsKey(movieId))
            {
                session.SessionState = SessionState.Active;
            }

            _sessions.Add(session);
            return session.SessionId;
        }