namespace InspectionUI.ViewModels
{
    using System.Collections;
    using System.Collections.Generic;

    public abstract class ItemsGridVM : VM, IEnumerable<ItemsGridRowVM>
    {
        private readonly List<ItemsGridRowVM> rows;

        protected ItemsGridVM() : base()
        {
            this.rows = new List<ItemsGridRowVM>();
        }

        public IEnumerator<ItemsGridRowVM> GetEnumerator()
        {
            return this.rows.GetEnumerator();
        }

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

        protected void Add(ItemsGridRowVM item)
        {
            this.rows.Add(item);
        }

        protected void Clear()
        {
            foreach (var item in this.rows)
            {
                item.Dispose();
            }

            this.rows.Clear();
        }

        protected int IndexOf(ItemsGridRowVM item)
        {
            return this.rows.IndexOf(item);
        }

        protected void Insert(int index, ItemsGridRowVM item)
        {
            this.rows.Insert(index, item);
        }
    }
}