using System;
using System.Linq;
using Server.Items;
using Server.Network;
using Server.Spells;

namespace Server.SkillHandlers
{
  internal class SpiritSpeak
  {
    public static void Initialize()
    {
      SkillInfo.Table[32].Callback = OnUse;
    }

    public static TimeSpan OnUse(Mobile m)
    {
      if (Core.AOS)
      {
        Spell spell = new SpiritSpeakSpell(m);

        spell.Cast();

        if (spell.IsCasting)
          return TimeSpan.FromSeconds(5.0);

        return TimeSpan.Zero;
      }

      m.RevealingAction();

      if (m.CheckSkill(SkillName.SpiritSpeak, 0, 100))
      {
        if (!m.CanHearGhosts)
        {
          Timer t = new SpiritSpeakTimer(m);
          double secs = m.Skills.SpiritSpeak.Base / 50;
          secs *= 90;
          if (secs < 15)
            secs = 15;

          t.Delay = TimeSpan.FromSeconds(secs); //15seconds to 3 minutes
          t.Start();
          m.CanHearGhosts = true;
        }

        m.PlaySound(0x24A);
        m.SendLocalizedMessage(502444); //You contact the neitherworld.
      }
      else
      {
        m.SendLocalizedMessage(502443); //You fail to contact the neitherworld.
        m.CanHearGhosts = false;
      }

      return TimeSpan.FromSeconds(1.0);
    }

    private class SpiritSpeakTimer : Timer
    {
      private Mobile m_Owner;

      public SpiritSpeakTimer(Mobile m) : base(TimeSpan.FromMinutes(2.0))
      {
        m_Owner = m;
        Priority = TimerPriority.FiveSeconds;
      }

      protected override void OnTick()
      {
        m_Owner.CanHearGhosts = false;
        m_Owner.SendLocalizedMessage(502445); //You feel your contact with the neitherworld fading.
      }
    }

    private class SpiritSpeakSpell : Spell
    {
      private static SpellInfo m_Info = new SpellInfo("Spirit Speak", "", 269);

      public SpiritSpeakSpell(Mobile caster) : base(caster, null, m_Info)
      {
      }

      public override bool BlockedByHorrificBeast => false;

      public override bool ClearHandsOnCast => false;

      public override double CastDelayFastScalar => 0;
      public override TimeSpan CastDelayBase => TimeSpan.FromSeconds(1.0);

      public override bool CheckNextSpellTime => false;

      public override int GetMana()
      {
        return 0;
      }

      public override void OnCasterHurt()
      {
        if (IsCasting)
          Disturb(DisturbType.Hurt, false, true);
      }

      public override bool ConsumeReagents()
      {
        return true;
      }

      public override bool CheckFizzle()
      {
        return true;
      }

      public override void OnDisturb(DisturbType type, bool message)
      {
        Caster.NextSkillTime = Core.TickCount;

        base.OnDisturb(type, message);
      }

      public override bool CheckDisturb(DisturbType type, bool checkFirst, bool resistable)
      {
        if (type == DisturbType.EquipRequest || type == DisturbType.UseRequest)
          return false;

        return true;
      }

      public override void SayMantra()
      {
        // Anh Mi Sah Ko
        Caster.PublicOverheadMessage(MessageType.Regular, 0x3B2, 1062074, "", false);
        Caster.PlaySound(0x24A);
      }

      public override void OnCast()
      {
        IPooledEnumerable<Corpse> eable = Caster.GetItemsInRange<Corpse>(3);
        Corpse toChannel = eable.FirstOrDefault(item => item is Corpse corpse && !corpse.Channeled);
        eable.Free();

        int min = 1 + (int)(Caster.Skills.SpiritSpeak.Value * 0.25);
        int max = min + 4;

        int mana, number;

        if (toChannel != null)
        {
          mana = 0;
          number = 1061287; // You channel energy from a nearby corpse to heal your wounds.
        }
        else
        {
          mana = 10;
          number = 1061286; // You channel your own spiritual energy to heal your wounds.
        }

        if (Caster.Mana < mana)
        {
          Caster.SendLocalizedMessage(1061285); // You lack the mana required to use this skill.
        }
        else
        {
          Caster.CheckSkill(SkillName.SpiritSpeak, 0.0, 120.0);

          if (Utility.RandomDouble() > Caster.Skills.SpiritSpeak.Value / 100.0)
          {
            Caster.SendLocalizedMessage(502443); // You fail your attempt at contacting the netherworld.
          }
          else
          {
            if (toChannel != null)
            {
              toChannel.Channeled = true;
              toChannel.Hue = 0x835;
            }

            Caster.Mana -= mana;
            Caster.SendLocalizedMessage(number);

            if (min > max)
              min = max;

            Caster.Hits += Utility.RandomMinMax(min, max);

            Caster.FixedParticles(0x375A, 1, 15, 9501, 2100, 4, EffectLayer.Waist);
          }
        }

        FinishSequence();
      }
    }
  }
}