using System;
using System.Collections.Generic;
using Server.Network;
using Server.Items;
using Server.Targeting;
using Server.Engines.PartySystem;

namespace Server.Spells.Fourth
{
	public class ArchProtectionSpell : MagerySpell
	{
		private static SpellInfo m_Info = new SpellInfo(
				"Arch Protection", "Vas Uus Sanct",
				215,
				9011,
				Reagent.Garlic,
				Reagent.Ginseng,
				Reagent.MandrakeRoot,
				Reagent.SulfurousAsh
			);

		public override SpellCircle Circle { get { return SpellCircle.Fourth; } }

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

		public override void OnCast()
		{
			Caster.Target = new InternalTarget( this );
		}

		public void Target( IPoint3D p )
		{
			if ( !Caster.CanSee( p ) )
			{
				Caster.SendLocalizedMessage( 500237 ); // Target can not be seen.
			}
			else if ( CheckSequence() )
			{
				SpellHelper.Turn( Caster, p );

				SpellHelper.GetSurfaceTop( ref p );

				List<Mobile> targets = new List<Mobile>();

				Map map = Caster.Map;

				if ( map != null )
				{
					Caster.CheckSkill( SkillName.Concentration, 0.0, 100.0 ); // PASSIVE CHECK

					IPooledEnumerable eable = map.GetMobilesInRange( new Point3D( p ), (3+(int)(Caster.Skills[SkillName.Concentration].Value/20)) );

					foreach ( Mobile m in eable )
					{
						if ( Caster.CanBeBeneficial( m, false ) )
							targets.Add( m );
					}

					eable.Free();
				}

				Effects.PlaySound( p, Caster.Map, 0x299 );

				int val = (int)(Caster.Skills[SkillName.Magery].Value/10.0 + 1);

				Caster.CheckSkill( SkillName.Concentration, 0.0, 100.0 );

				val = val + (int)(Caster.Skills[SkillName.Concentration].Value/20.0);

				if ( targets.Count > 0 )
				{
					for ( int i = 0; i < targets.Count; ++i )
					{
						Mobile m = targets[i];

						if ( m.BeginAction( typeof( ArchProtectionSpell ) ) )
						{
							Caster.DoBeneficial( m );
							m.VirtualArmorMod += val;
							new InternalTimer( m, Caster, val ).Start();

							m.FixedParticles( 0x375A, 9, 20, 5027, EffectLayer.Waist );
							m.PlaySound( 0x1F7 );
						}
					}
				}
			}

			FinishSequence();
		}

		private class InternalTimer : Timer
		{
			private Mobile m_Owner;
			private int m_Val;

			public InternalTimer( Mobile target, Mobile caster, int val ) : base( TimeSpan.FromSeconds( 0 ) )
			{
				double time = caster.Skills[SkillName.Magery].Value * 1.2;
				if ( time > 144 )
					time = 144;
				Delay = TimeSpan.FromSeconds( time );
				Priority = TimerPriority.OneSecond;

				m_Owner = target;
				m_Val = val;
			}

			protected override void OnTick()
			{
				m_Owner.EndAction( typeof( ArchProtectionSpell ) );
				m_Owner.VirtualArmorMod -= m_Val;
				if ( m_Owner.VirtualArmorMod < 0 )
					m_Owner.VirtualArmorMod = 0;
			}
		}

		private class InternalTarget : Target
		{
			private ArchProtectionSpell m_Owner;

			public InternalTarget( ArchProtectionSpell owner ) : base( 12, true, TargetFlags.None )
			{
				m_Owner = owner;
			}

			protected override void OnTarget( Mobile from, object o )
			{
				IPoint3D p = o as IPoint3D;

				if ( p != null )
					m_Owner.Target( p );
			}

			protected override void OnTargetFinish( Mobile from )
			{
				m_Owner.FinishSequence();
			}
		}
	}
}