using System.Collections.Generic;
using System.Runtime.Serialization;

namespace NJDOTNET.Trivia
{
    [DataContract]
    public class Game
    {
        protected readonly IQuestionProvider questionProvider;

        [DataMember]
        public int Id { get; internal set; }

        [DataMember]
        private readonly List<Player> players = new List<Player>();
        public virtual IEnumerable<Player> Players
        {
            get { return players; }
        }

        [DataMember]
        public string Name { get; set; }

        internal Game()
        {
        }

        public Game(IQuestionProvider questionProvider)
        {
            this.questionProvider = questionProvider;
        }

        public virtual void AddPlayer(Player player)
        {
            if (!players.Contains(player))
                players.Add(player);
        }

        public virtual Question NextQuestion()
        {
            return questionProvider.NextQuestion();
        }
    }
}