using System;
using Server.Targeting;
using Server.Network;
using Server.Mobiles;
using Server.Items;
using Server.Spells;

namespace Server.ACC.CSS.Systems.Bard
{
	public class BardEnergyThrenodySpell : BardSpell
	{

		private static SpellInfo m_Info = new SpellInfo(
		                                                "Energy Threnody", "Enerdeficient",
		                                                //SpellCircle.First,
		                                                212,9041
		                                               );

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

		public override double CastDelay{ get{ return 2; } }
		public override double RequiredSkill{ get{ return 35.0; } }
		public override int RequiredMana{ get{ return 7; } }

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

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

		public void Target( Mobile m )
		{
			if ( !Caster.CanSee( m ) )
			{
				Caster.SendLocalizedMessage( 500237 ); // Target can not be seen.
			}
			else if ( CheckHSequence( m ) )
			{
				Mobile source = Caster;

				SpellHelper.Turn( Caster, m );

				SpellHelper.CheckReflect( (int)this.Circle, ref source, ref m );

				m.FixedParticles( 0x374A, 10, 30, 5013, 0x14, 2, EffectLayer.Waist );

				int amount = (int)( Caster.Skills[SkillName.Musicianship].Base * 0.17 );
				TimeSpan duration = TimeSpan.FromSeconds( Caster.Skills[SkillName.Musicianship].Base * 0.15 );

				m.SendMessage( "Your energy resistance has decreased." );
				ResistanceMod mod1 = new ResistanceMod( ResistanceType.Energy, - amount );

				m.AddResistanceMod( mod1 );

				ExpireTimer timer1 = new ExpireTimer( m, mod1, duration );
				timer1.Start();
			}

			FinishSequence();
		}

		private class ExpireTimer : Timer
		{
			private Mobile m_Mobile;
			private ResistanceMod m_Mods;

			public ExpireTimer( Mobile m, ResistanceMod mod, TimeSpan delay ) : base( delay )
			{
				m_Mobile = m;
				m_Mods = mod;
			}

			public void DoExpire()
			{
				m_Mobile.RemoveResistanceMod( m_Mods );

				Stop();
			}

			protected override void OnTick()
			{
				if ( m_Mobile != null )
				{
					m_Mobile.SendMessage( "The effect of Energy Threnody wears off." );
					DoExpire();
				}
			}
		}

		private class InternalTarget : Target
		{
			private BardEnergyThrenodySpell m_Owner;

			public InternalTarget( BardEnergyThrenodySpell owner ) : base( 12, false, TargetFlags.Harmful )
			{
				m_Owner = owner;
			}

			protected override void OnTarget( Mobile from, object o )
			{
				if ( o is Mobile )
					m_Owner.Target( (Mobile)o );
			}

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