using System;
using System.Collections.Generic;
using Server.Items;
using Server.Mobiles;

namespace Server.Spells.Necromancy
{
  public class WitherSpell : NecromancerSpell
  {
    private static readonly SpellInfo m_Info = new SpellInfo(
      "Wither", "Kal Vas An Flam",
      203,
      9031,
      Reagent.NoxCrystal,
      Reagent.GraveDust,
      Reagent.PigIron);

    public WitherSpell(Mobile caster, Item scroll = null)
      : base(caster, scroll, m_Info)
    {
    }

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

    public override double RequiredSkill => 60.0;

    public override int RequiredMana => 23;

    public override bool DelayedDamage => false;

    public override void OnCast()
    {
      if (CheckSequence())
      {
        /* Creates a withering frost around the Caster,
         * which deals Cold Damage to all valid targets in a radius of 5 tiles.
         */

        Map map = Caster.Map;

        if (map != null)
        {
          List<Mobile> targets = new List<Mobile>();

          BaseCreature cbc = Caster as BaseCreature;
          bool isMonster = cbc?.Controlled == false && !cbc.Summoned;

          foreach (Mobile m in Caster.GetMobilesInRange(Core.ML ? 4 : 5))
            if (Caster != m && Caster.InLOS(m) && (isMonster || SpellHelper.ValidIndirectTarget(Caster, m)) &&
                Caster.CanBeHarmful(m, false))
            {
              if (isMonster)
              {
                if (m is BaseCreature bc)
                {
                  if (!bc.Controlled && !bc.Summoned && bc.Team == cbc.Team)
                    continue;
                }
                else if (!m.Player)
                {
                  continue;
                }
              }

              targets.Add(m);
            }

          Effects.PlaySound(Caster.Location, map, 0x1FB);
          Effects.PlaySound(Caster.Location, map, 0x10B);
          Effects.SendLocationParticles(EffectItem.Create(Caster.Location, map, EffectItem.DefaultDuration),
            0x37CC, 1, 40, 97, 3, 9917, 0);

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

            Caster.DoHarmful(m);
            m.FixedParticles(0x374A, 1, 15, 9502, 97, 3, (EffectLayer)255);

            double damage = Utility.RandomMinMax(30, 35);

            damage *= 300 + m.Karma / 100 + GetDamageSkill(Caster) * 10;
            damage /= 1000;

            int sdiBonus = AosAttributes.GetValue(Caster, AosAttribute.SpellDamage);

            // PvP spell damage increase cap of 15% from an item�s magic property in Publish 33(SE)
            if (Core.SE && m.Player && Caster.Player && sdiBonus > 15)
              sdiBonus = 15;

            damage *= 100 + sdiBonus;
            damage /= 100;

            // TODO: cap?
            // if (damage > 40)
            // damage = 40;

            SpellHelper.Damage(this, m, damage, 0, 0, 100, 0, 0);
          }
        }
      }

      FinishSequence();
    }
  }
}