#region License
/* 
 * Copyright (C) 1999-2022 John Källén.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#endregion

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;

namespace Reko.UserInterfaces.AvaloniaUI.ViewModels
{
    public class VirtualList<T> : IList<T>
    {
        private Func<int, T> materializer;

        public VirtualList(Func<int, T> materializer, int count)
        {
            this.materializer = materializer;
            this.Count = count;
        }

        public T this[int index] { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }


        public int Count { get; }

        public bool IsReadOnly => throw new NotImplementedException();

        public void Add(T item)
        {
            throw new NotImplementedException();
        }

        public void Clear()
        {
            throw new NotImplementedException();
        }

        public bool Contains(T item)
        {
            throw new NotImplementedException();
        }

        public void CopyTo(T[] array, int arrayIndex)
        {
            throw new NotImplementedException();
        }

        public IEnumerator<T> GetEnumerator()
        {
            for (int i = 0; i < Count; ++i)
            {
                Debug.Print("Yielding {0}", i);
                yield return materializer(i);
            }
        }

        public int IndexOf(T item)
        {
            throw new NotImplementedException();
        }

        public void Insert(int index, T item)
        {
            throw new NotImplementedException();
        }

        public bool Remove(T item)
        {
            throw new NotImplementedException();
        }

        public void RemoveAt(int index)
        {
            throw new NotImplementedException();
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            throw new NotImplementedException();
        }
    }
}
