using System;
using System.Collections.Generic;
using System.Linq;
using Server.Items;
using Server.Multis;

namespace Server.Misc
{
  public class Cleanup
  {
    public static void Initialize()
    {
      Timer.DelayCall(TimeSpan.FromSeconds(2.5), Run);
    }

    public static void Run()
    {
      List<Item> items = new List<Item>();
      List<Item> validItems = new List<Item>();
      List<Mobile> hairCleanup = new List<Mobile>();

      int boxes = 0;

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

        if (item is CommodityDeed deed)
        {
          if (deed.Commodity != null)
            validItems.Add(deed.Commodity);

          continue;
        }

        if (item is BaseHouse house)
        {
          foreach (RelocatedEntity relEntity in house.RelocatedEntities)
            if (relEntity.Entity is Item item1)
              validItems.Add(item1);

          validItems.AddRange(house.VendorInventories.SelectMany(inventory => inventory.Items));
        }
        else if (item is BankBox box)
        {
          Mobile owner = box.Owner;

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

          continue;
        }
        else if (item.Layer == Layer.Hair || item.Layer == Layer.FacialHair)
        {
          if (item.RootParent is Mobile rootMobile)
          {
            if (item.Parent != rootMobile && rootMobile.AccessLevel == AccessLevel.Player)
            {
              items.Add(item);
              continue;
            }

            if (item.Parent == rootMobile)
            {
              hairCleanup.Add(rootMobile);
              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)
          Console.WriteLine("Cleanup: Detected {0} inaccessible items, including {1} bank boxes, removing..",
            items.Count, boxes);
        else
          Console.WriteLine("Cleanup: Detected {0} inaccessible items, removing..", items.Count);

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

      if (hairCleanup.Count > 0)
      {
        Console.WriteLine(
          "Cleanup: Detected {0} hair and facial hair items being worn, converting to their virtual counterparts..",
          hairCleanup.Count);

        for (int i = 0; i < hairCleanup.Count; i++)
          hairCleanup[i].ConvertHair();
      }
    }

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

      if (item is ICommodity || item is BaseBoat
                             || item is Fish || item is BigFish || 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

                             #region Champion artifacts

                             || item is SkullPole
                             || item is EvilIdolSkull
                             || item is MonsterStatuette
                             || item is Pier
                             || item is ArtifactLargeVase
                             || item is ArtifactVase
                             || item is MinotaurStatueDeed
                             || item is SwampTile
                             || item is WallBlood
                             || item is TatteredAncientMummyWrapping
                             || item is LavaTile
                             || item is DemonSkull
                             || item is Web
                             || item is WaterTile
                             || item is WindSpirit
                             || item is DirtPatch
                             || item is Futon)

        #endregion

        return true;

      return false;
    }
  }
}