// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.Collections;

namespace System.DirectoryServices.ActiveDirectory
{
    public class TopLevelNameCollection : ReadOnlyCollectionBase
    {
        internal TopLevelNameCollection() { }

        public TopLevelName this[int index] => (TopLevelName)InnerList[index]!;

        public bool Contains(TopLevelName name)
        {
            if (name == null)
                throw new ArgumentNullException(nameof(name));

            return InnerList.Contains(name);
        }

        public int IndexOf(TopLevelName name)
        {
            if (name == null)
                throw new ArgumentNullException(nameof(name));

            return InnerList.IndexOf(name);
        }

        public void CopyTo(TopLevelName[] names, int index)
        {
            InnerList.CopyTo(names, index);
        }

        internal int Add(TopLevelName name)
        {
            if (name == null)
                throw new ArgumentNullException(nameof(name));

            return InnerList.Add(name);
        }
    }
}