using System;

using System.Collections.Generic;

using Server.Network;

using Server.Items;

using Server.Targeting;

using Server.Mobiles;

using Server.Spells.Necromancy;



namespace Server.Spells.Chivalry

{

	public class DispelEvilSpell : PaladinSpell

	{

		private static SpellInfo m_Info = new SpellInfo(

				"Dispel Evil", "Dispiro Malas",

				-1,

				9002

			);



		public override TimeSpan CastDelayBase { get { return TimeSpan.FromSeconds( 0.25 ); } }



		public override double RequiredSkill{ get{ return 35.0; } }

		public override int RequiredMana{ get{ return 10; } }

		public override int RequiredTithing{ get{ return 10; } }

		public override int MantraNumber{ get{ return 1060721; } } // Dispiro Malas

		public override bool BlocksMovement{ get{ return false; } }



		public DispelEvilSpell( Mobile caster, Item scroll ) : base( caster, scroll, m_Info )

		{

		}



		public override bool DelayedDamage{ get{ return false; } }



		public override void SendCastEffect()

		{

			Caster.FixedEffect( 0x37C4, 10, 7, 4, 3 ); // At player

		}



		public override void OnCast()

		{

			if ( CheckSequence() )

			{

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



				foreach ( Mobile m in Caster.GetMobilesInRange( 8 ) )

				{

					if ( Caster != m && SpellHelper.ValidIndirectTarget( Caster, m ) && Caster.CanBeHarmful( m, false ) )

						targets.Add( m );

				}



				Caster.PlaySound( 0x299 );

				Caster.FixedParticles( 0x37C4, 1, 25, 9922, 14, 3, EffectLayer.Head );



				int dispelSkill = ComputePowerValue( 2 );



				double chiv = Caster.Skills.Chivalry.Value;



				for ( int i = 0; i < targets.Count; ++i )

				{

					Mobile m = targets[i];

					BaseCreature bc = m as BaseCreature;



					if ( bc != null )

					{

						bool dispellable = bc.Summoned && !bc.IsAnimatedDead;



						if ( dispellable )

						{

							double dispelChance = (50.0 + ((100 * (chiv - bc.DispelDifficulty)) / (bc.DispelFocus*2))) / 100;

							dispelChance *= dispelSkill / 100.0;



							if ( dispelChance > Utility.RandomDouble() )

							{

								Effects.SendLocationParticles( EffectItem.Create( m.Location, m.Map, EffectItem.DefaultDuration ), 0x3728, 8, 20, 5042 );

								Effects.PlaySound( m, m.Map, 0x201 );



								m.Delete();

								continue;

							}

						}



						bool evil = !bc.Controlled && bc.Karma < 0;



						if ( evil )

						{

							// TODO: Is this right?

							double fleeChance = (100 - Math.Sqrt( m.Fame / 2 )) * chiv * dispelSkill;

							fleeChance /= 1000000;



							if ( fleeChance > Utility.RandomDouble() )

							{

								// guide says 2 seconds, it's longer

								bc.BeginFlee( TimeSpan.FromSeconds( 30.0 ) );

							}

						}

					}



					TransformContext context = TransformationSpellHelper.GetContext( m );

					if( context != null && context.Spell is NecromancerSpell )	//Trees are not evil!	TODO: OSI confirm?

					{

						// transformed ..



						double drainChance = 0.5 * (Caster.Skills.Chivalry.Value / Math.Max( m.Skills.Necromancy.Value, 1 ));



						if ( drainChance > Utility.RandomDouble() )

						{

							int drain = (5 * dispelSkill) / 100;



							m.Stam -= drain;

							m.Mana -= drain;

						}

					}

				}

			}



			FinishSequence();

		}

	}

}