using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Intel.Management.PSModule
{
    class DriveContainer : DriveItem
    {

        //cached items in container
        protected DriveItem[] _items;
        protected static readonly DriveItem[] _emptyContainer = new DriveItem[0];


        public DriveContainer(string name,DriveItem parent) 
            : base(name,new Container(), parent)
        {
            _items = null;
        }

        public DriveContainer(string name, DriveItem[] items, DriveItem parent) 
            : base(name,new Container(),parent)
        {
            _items = items;
        }

        public DriveContainer(string name, DriveItem item, DriveItem parent)
            : base(name, new Container(),parent)
        {
            _items = new DriveItem[1];
            _items[0] = item;
            item.SetParent(this);
        }

    

        public void SetChildItems(DriveItem[] items)
        {
            _items = items;
        }


        public  DriveItem[] GetChildItems()
        {
            return _items;
        }

        public override void Clear()
        {
            _items = null;
        }

        public virtual void GetChildItems(ChildWriter childWriter)
        {
           
        }

        public override void RemoveItem(DriveProvider provider)
        {
            //RemoveChildItem(this);
     
        }
   
        public override bool RemoveChildItem(DriveItem itemToRemove)
        {
            return RemoveChildItem(itemToRemove,false);
        }

        public bool RemoveChildItem(DriveItem itemToRemove,bool recurse)
        {
            List<DriveItem> list = new List<DriveItem>();
            if (_items != null) list.AddRange(_items);

            bool result = list.Remove(itemToRemove);
            if (result)
            {
                list.Sort(_defaultComparer);
                _items = list.ToArray();
            }
            else if (recurse)
            {
                foreach (DriveItem item in list)
                {
                    if (item is DriveContainer)
                    {
                        result = ((DriveContainer)item).RemoveChildItem(itemToRemove,recurse);
                        if (result) break;
                    }
                }
            }
            return result;
        }

      

        protected List<DriveItem> GetChildList()
        {
            List<DriveItem> list = null;
            if (_items == null)
                list = new List<DriveItem>();
            else
                list = new List<DriveItem>(_items);

            return list;

        }

        protected DriveContainer Parent
        {
            get
            {
                return _parent as DriveContainer;
            }
        }




        public override void AddChildItem(DriveItem itemToAdd)
        {
            List<DriveItem> list = new List<DriveItem>();
            if (_items != null)list.AddRange(_items);
            list.Add(itemToAdd);
            list.Sort(_defaultComparer);
            _items = list.ToArray();
        }

        public override object GetReturnObject()
        {
            return new NameValuePairItem(Name, Value);
        }


       
    }
}