using System.Collections.Generic;
using Server.Targeting;

namespace Server.Items
{
	public class ArcaneGem : Item
	{
		public override string DefaultName => "arcane gem";

		[Constructible]
		public ArcaneGem() : base( 0x1EA7 )
		{
			Stackable = Core.ML;
			Weight = 1.0;
		}

		public ArcaneGem( Serial serial ) : base( serial )
		{
		}

		public override void OnDoubleClick( Mobile from )
		{
			if ( !IsChildOf( from.Backpack ) )
			{
				from.SendLocalizedMessage( 1042001 ); // That must be in your pack for you to use it.
			}
			else
			{
				from.BeginTarget( 2, false, TargetFlags.None, new TargetCallback( OnTarget ) );
				from.SendMessage( "What do you wish to use the gem on?" );
			}
		}

		public int GetChargesFor( Mobile m )
		{
			int v = (int)(m.Skills[SkillName.Tailoring].Value / 5);

			if ( v < 16 )
				return 16;
			else if ( v > 24 )
				return 24;

			return v;
		}

		public const int DefaultArcaneHue = 2117;

		public void OnTarget( Mobile from, object obj )
		{
			if ( !IsChildOf( from.Backpack ) )
			{
				from.SendLocalizedMessage( 1042001 ); // That must be in your pack for you to use it.
				return;
			}

			if ( obj is IArcaneEquip eq && eq is Item item )
			{
				BaseClothing clothing = item as BaseClothing;
				BaseArmor armor = item as BaseArmor;
				BaseWeapon weapon = item as BaseWeapon;

				CraftResource resource = clothing?.Resource ?? armor?.Resource ?? weapon?.Resource ?? CraftResource.None;

				if ( !item.IsChildOf( from.Backpack ) )
				{
					from.SendLocalizedMessage( 1042001 ); // That must be in your pack for you to use it.
					return;
				}
				if ( item.LootType == LootType.Blessed )
				{
					from.SendMessage( "You can only use this on exceptionally crafted robes, thigh boots, cloaks, or leather gloves." );
					return;
				}
				if ( resource != CraftResource.None && resource != CraftResource.RegularLeather )
				{
					from.SendLocalizedMessage( 1049690 ); // Arcane gems can not be used on that type of leather.
					return;
				}

				int charges = GetChargesFor( from );

				if ( eq.IsArcane )
				{
					if ( eq.CurArcaneCharges >= eq.MaxArcaneCharges )
					{
						from.SendMessage( "That item is already fully charged." );
					}
					else
					{
						if ( eq.CurArcaneCharges <= 0 )
							item.Hue = DefaultArcaneHue;

						if ( (eq.CurArcaneCharges + charges) > eq.MaxArcaneCharges )
							eq.CurArcaneCharges = eq.MaxArcaneCharges;
						else
							eq.CurArcaneCharges += charges;

						from.SendMessage( "You recharge the item." );
						if ( Amount <= 1 )
							Delete();
						else Amount--;
					}
				}
				else if ( from.Skills[SkillName.Tailoring].Value >= 80.0 )
				{
					bool isExceptional = clothing?.Quality == ClothingQuality.Exceptional ||
					                     armor?.Quality == ArmorQuality.Exceptional ||
					                     weapon?.Quality == WeaponQuality.Exceptional;

					if ( isExceptional )
					{
						if (clothing != null)
						{
							clothing.Quality = ClothingQuality.Regular;
							clothing.Crafter = from;
						}
						else if (armor != null)
						{
							armor.Quality = ArmorQuality.Regular;
							armor.Crafter = from;
							armor.PhysicalBonus = armor.FireBonus = armor.ColdBonus = armor.PoisonBonus = armor.EnergyBonus = 0; // Is there a method to remove bonuses?
						}
						else if (weapon != null)
						{
							weapon.Quality = WeaponQuality.Regular;
							weapon.Crafter = from;
						}

						eq.CurArcaneCharges = eq.MaxArcaneCharges = charges;

						item.Hue = DefaultArcaneHue;

						from.SendMessage( "You enhance the item with your gem." );
						if ( Amount <= 1 )
							Delete();
						else Amount--;
					}
					else
					{
						from.SendMessage( "Only exceptional items can be enhanced with the gem." );
					}
				}
				else
				{
					from.SendMessage( "You do not have enough skill in tailoring to enhance the item." );
				}
			}
			else
			{
				from.SendMessage( "You can only use this on exceptionally crafted robes, thigh boots, cloaks, or leather gloves." );
			}
		}

		public static bool ConsumeCharges( Mobile from, int amount )
		{
			List<Item> items = from.Items;
			int avail = 0;

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

				if ( obj is IArcaneEquip eq && eq.IsArcane )
					avail += eq.CurArcaneCharges;
			}

			if ( avail < amount )
				return false;

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

				if ( obj is IArcaneEquip eq && eq.IsArcane )
				{
					if ( eq.CurArcaneCharges > amount )
					{
						eq.CurArcaneCharges -= amount;
						break;
					}

					amount -= eq.CurArcaneCharges;
					eq.CurArcaneCharges = 0;
				}
			}

			return true;
		}

		public override void Serialize( GenericWriter writer )
		{
			base.Serialize( writer );

			writer.Write( (int) 0 );
		}

		public override void Deserialize( GenericReader reader )
		{
			base.Deserialize( reader );

			int version = reader.ReadInt();
		}
	}
}