using System;
using System.Collections;
using System.Collections.Generic;
using Server.Spells.Fifth;
using Server.Spells.Seventh;

namespace Server.Spells.Mysticism
{
	public class StoneFormSpell : MysticSpell
	{
		public static void Initialize()
		{
			EventSink.PlayerDeath += OnPlayerDeath;
		}

		private static SpellInfo m_Info = new SpellInfo(
				"Stone Form", "In Rel Ylem",
				-1,
				9002,
				Reagent.Bloodmoss,
				Reagent.FertileDirt,
				Reagent.Garlic
			);

		public override TimeSpan CastDelayBase => TimeSpan.FromSeconds( 1.5 );

		public override double RequiredSkill => 33.0;
		public override int RequiredMana => 11;

		private static Hashtable m_Table = new Hashtable();

		public static bool UnderEffect( Mobile m )
		{
			return m_Table.Contains( m );
		}

		public StoneFormSpell( Mobile caster, Item scroll )
			: base( caster, scroll, m_Info )
		{
		}

		public override bool CheckCast()
		{
			if ( Factions.Sigil.ExistsOn( Caster ) )
			{
				Caster.SendLocalizedMessage( 1061632 ); // You can't do that while carrying the sigil.
				return false;
			}
			else if ( !Caster.CanBeginAction( typeof( PolymorphSpell ) ) )
			{
				Caster.SendLocalizedMessage( 1061628 ); // You can't do that while polymorphed.
				return false;
			}
			else if ( Ninjitsu.AnimalForm.UnderTransformation( Caster ) )
			{
				Caster.SendLocalizedMessage( 1063218 ); // You cannot use that ability in this form.
				return false;
			}
			else if ( Caster.Flying )
			{
				Caster.SendLocalizedMessage( 1113415 ); // You cannot use this ability while flying.
				return false;
			}

			return base.CheckCast();
		}

		public override void OnCast()
		{
			if ( Factions.Sigil.ExistsOn( Caster ) )
			{
				Caster.SendLocalizedMessage( 1061632 ); // You can't do that while carrying the sigil.
			}
			else if ( !Caster.CanBeginAction( typeof( PolymorphSpell ) ) )
			{
				Caster.SendLocalizedMessage( 1061628 ); // You can't do that while polymorphed.
			}
			else if ( !Caster.CanBeginAction( typeof( IncognitoSpell ) ) || ( Caster.IsBodyMod && !UnderEffect( Caster ) ) )
			{
				Caster.SendLocalizedMessage( 1063218 ); // You cannot use that ability in this form.
			}
			else if ( CheckSequence() )
			{
				if ( UnderEffect( Caster ) )
				{
					RemoveEffects( Caster );

					Caster.PlaySound( 0xFA );
					Caster.Delta( MobileDelta.Resistances );
				}
				else
				{
					var mount = Caster.Mount;

					if ( mount != null )
						mount.Rider = null;

					Caster.BodyMod = 0x2C1;
					Caster.HueMod = 0;

					var offset = (int) ( ( GetBaseSkill( Caster ) + GetBoostSkill( Caster ) ) / 24.0 );

					var mods = new List<ResistanceMod>
					{
						new ResistanceMod( ResistanceType.Physical, offset ),
						new ResistanceMod( ResistanceType.Fire, offset ),
						new ResistanceMod( ResistanceType.Cold, offset ),
						new ResistanceMod( ResistanceType.Poison, offset ),
						new ResistanceMod( ResistanceType.Energy, offset )
					};

					foreach ( var mod in mods )
						Caster.AddResistanceMod( mod );

					m_Table[Caster] = mods;

					Caster.PlaySound( 0x65A );
					Caster.Delta( MobileDelta.Resistances );

					BuffInfo.AddBuff( Caster, new BuffInfo( BuffIcon.StoneForm, 1080145, 1080146,
						$"-10\t-2\t{offset}\t{GetResistCapBonus(Caster)}\t{GetDIBonus(Caster)}", false ) );
				}
			}

			FinishSequence();
		}

		public static int GetDIBonus( Mobile m )
		{
			return (int) ( ( GetBaseSkill( m ) + GetBoostSkill( m ) ) / 12.0 );
		}

		public static int GetResistCapBonus( Mobile m )
		{
			return (int) ( ( GetBaseSkill( m ) + GetBoostSkill( m ) ) / 48.0 );
		}

		public static void RemoveEffects( Mobile m )
		{
			var mods = (List<ResistanceMod>) m_Table[m];

			foreach ( var mod in mods )
				m.RemoveResistanceMod( mod );

			m.BodyMod = 0;
			m.HueMod = -1;

			m_Table.Remove( m );

			BuffInfo.RemoveBuff( m, BuffIcon.StoneForm );
		}

		private static void OnPlayerDeath( PlayerDeathEventArgs e )
		{
			var m = e.Mobile;

			if ( UnderEffect( m ) )
				RemoveEffects( m );
		}
	}
}