using System.Collections;
using System.Collections.Generic;

using MonoTorrent.BEncoding;

namespace MonoTorrent
{
    public class RawTrackerTier : IList<string>
    {
        public string this[int index] {
            get { return ((BEncodedString) Tier [index]).Text; }
            set { Tier [index] = new BEncodedString (value );}
        }

        internal BEncodedList Tier {
            get; set;
        }

        public RawTrackerTier ()
            : this (new BEncodedList ())
        {
        }

        public RawTrackerTier (BEncodedList tier)
        {
            Tier = tier;
        }

        public RawTrackerTier (IEnumerable<string> announces)
            : this ()
        {
            foreach (var v in announces)
                Add (v);
        }

        public int IndexOf (string item)
        {
            return Tier.IndexOf ((BEncodedString) item);
        }

        public void Insert (int index, string item)
        {
            Tier.Insert (index, (BEncodedString) item);
        }

        public void RemoveAt (int index)
        {
            Tier.RemoveAt (index);
        }

        public void Add (string item)
        {
            Tier.Add ((BEncodedString) item);
        }

        public void Clear ()
        {
            Tier.Clear ();
        }

        public bool Contains (string item)
        {
            return Tier.Contains ((BEncodedString) item);
        }

        public void CopyTo (string[] array, int arrayIndex)
        {
            foreach (var s in this)
                array [arrayIndex ++] = s;
        }

        public bool Remove (string item)
        {
            return Tier.Remove ((BEncodedString) item);
        }

        public int Count {
            get { return Tier.Count; }
        }

        public bool IsReadOnly {
            get { return Tier.IsReadOnly; }
        }

        public IEnumerator<string> GetEnumerator ()
        {
            foreach (BEncodedString v in Tier)
                yield return v.Text;
        }

        IEnumerator IEnumerable.GetEnumerator ()
        {
            return GetEnumerator ();
        }
    }
}