namespace KIKunstKirstenKlöckner.Extensions
{
    public static class ListExtension
    {
        public static IEnumerable<T> PickRandom<T>(this List<T> list, int n)
        {
            if (list.Count == 0)
            {
                yield break;
            }
            if (n <= 0)
            {
                throw new ArgumentException("n must be greater than 0: ", nameof(n));
            }

            for (int i = 0; i < n; i++)
            {
                int index = Random.Shared.Next(list.Count);
                yield return list[index];
            }
        }
    }
}