using System;
using Server.Mobiles;
using Server.Regions;
using Server.Targeting;

namespace Server.Spells.Spellweaving
{
  public class NatureFurySpell : ArcanistSpell, ISpellTargetingPoint3D
  {
    private static SpellInfo m_Info = new SpellInfo(
      "Nature's Fury", "Rauvvrae",
      -1,
      false
    );

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

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

    public override double RequiredSkill => 0.0;
    public override int RequiredMana => 24;

    public override bool CheckCast()
    {
      if (!base.CheckCast())
        return false;

      if (Caster.Followers + 1 > Caster.FollowersMax)
      {
        Caster.SendLocalizedMessage(1049645); // You have too many followers to summon that creature.
        return false;
      }

      return true;
    }

    public override void OnCast()
    {
      Caster.Target = new SpellTargetPoint3D(this, TargetFlags.None, 10);
    }

    public void Target(IPoint3D point)
    {
      Point3D p = new Point3D(point);
      Map map = Caster.Map;

      if (map == null)
        return;

      if (Region.Find(p, map).GetRegion<HouseRegion>()?.House?.IsFriend(Caster) == false)
        return;

      if (!map.CanSpawnMobile(p.X, p.Y, p.Z))
      {
        Caster.SendLocalizedMessage(501942); // That location is blocked.
      }
      else if (SpellHelper.CheckTown(p, Caster) && CheckSequence())
      {
        TimeSpan duration = TimeSpan.FromSeconds(Caster.Skills.Spellweaving.Value / 24 + 25 + FocusLevel * 2);

        NatureFury nf = new NatureFury();
        BaseCreature.Summon(nf, false, Caster, p, 0x5CB, duration);

        new InternalTimer(nf).Start();
      }

      FinishSequence();
    }

    private class InternalTimer : Timer
    {
      private NatureFury m_NatureFury;

      public InternalTimer(NatureFury nf)
        : base(TimeSpan.FromSeconds(5.0), TimeSpan.FromSeconds(5.0))
      {
        m_NatureFury = nf;
      }

      protected override void OnTick()
      {
        if (m_NatureFury.Deleted || !m_NatureFury.Alive || m_NatureFury.DamageMin > 20)
        {
          Stop();
        }
        else
        {
          ++m_NatureFury.DamageMin;
          ++m_NatureFury.DamageMax;
        }
      }
    }
  }
}