namespace ReserveManagementSystemApi.Helpers
{
    public static class BatchHelper
    {
        public static IEnumerable<IEnumerable<TSource>> CreateBatch <TSource>(
          List<TSource> source, int batchSize)
        {
            var items = new TSource[batchSize];
            var count = 0;
            foreach (var item in source)
            {
                items[count++] = item;
                if (count == batchSize)
                {
                    yield return items;
                    items = new TSource[batchSize];
                    count = 0;
                }
            }

            if (count > 0)
            { 
                yield return items.Take(count); 
            }
        }
    }
}