using System;
using System.Collections;
using Server;
using Server.Items;
using Server.Multis;
using Server.Mobiles;

namespace Server.Misc
{
	public class Cleanup
	{
		private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

		public static void Initialize()
		{
			Timer.DelayCall( TimeSpan.FromSeconds( 2.5 ), new TimerCallback( Run ) );
		}

		public static void Run()
		{
			ArrayList items = new ArrayList();
			ArrayList validItems = new ArrayList();

			int boxes = 0;

			foreach ( Item item in World.Items.Values )
			{
				if ( item.Map == null )
				{
					items.Add( item );
					continue;
				}
				else if ( item is CommodityDeed )
				{
					CommodityDeed deed = (CommodityDeed)item;

					if ( deed.Commodity != null )
						validItems.Add( deed.Commodity );

					continue;
				}
				else if ( item is BaseHouse )
				{
					BaseHouse house = (BaseHouse)item;

					foreach ( RelocatedEntity relEntity in house.RelocatedEntities )
					{
						if ( relEntity.Entity is Item )
							validItems.Add( relEntity.Entity );
					}

					foreach ( VendorInventory inventory in house.VendorInventories )
					{
						foreach ( Item subItem in inventory.Items )
							validItems.Add( subItem );
					}
				}
				else if ( item is BankBox )
				{
					BankBox box = (BankBox)item;
					Mobile owner = box.Owner;

					if ( owner == null )
					{
						items.Add( box );
						++boxes;
					}
					else if ( !owner.Player && box.Items.Count == 0 )
					{
						items.Add( box );
						++boxes;
					}

					continue;
				}
				else if ( (item.Layer == Layer.Hair || item.Layer == Layer.FacialHair) )
				{
					object rootParent = item.RootParent;

					if ( rootParent is Mobile && item.Parent != rootParent && ((Mobile)rootParent).AccessLevel == AccessLevel.Player )
					{
						items.Add( item );
						continue;
					}
				}

				if ( item.Parent != null || item.Map != Map.Internal || item.HeldBy != null )
					continue;

				if ( item.Location != Point3D.Zero )
					continue;

				if ( !IsBuggable( item ) )
					continue;

				items.Add( item );
			}

			for ( int i = 0; i < validItems.Count; ++i )
				items.Remove( validItems[i] );

			if ( items.Count > 0 )
			{
				if ( boxes > 0 )
					log.WarnFormat("Cleanup: Detected {0} inaccessible items, including {1} bank boxes, removing..",
								   items.Count, boxes);
				else
					log.WarnFormat("Cleanup: Detected {0} inaccessible items, removing..",
								   items.Count);

				for ( int i = 0; i < items.Count; ++i )
					((Item)items[i]).Delete();
			}
		}

		public static bool IsBuggable( Item item )
		{
			if ( item is Fists )
				return false;

			if ( item is ICommodity || item is Multis.BaseBoat
				|| item is Fish || item is BigFish
				|| item is BasePotion || item is Food || item is CookableFood
				|| item is SpecialFishingNet || item is BaseMagicFish
				|| item is Shoes || item is Sandals
				|| item is Boots || item is ThighBoots
				|| item is TreasureMap || item is MessageInABottle
				|| item is BaseArmor || item is BaseWeapon
				|| item is BaseClothing
				|| (item is BaseJewel && Core.AOS) )
				return true;

			return false;
		}
	}
}