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

namespace Server.Spells.Chivalry
{
  public class EnemyOfOneSpell : PaladinSpell
  {
    private static SpellInfo m_Info = new SpellInfo(
      "Enemy of One", "Forul Solum",
      -1,
      9002
    );

    private static Dictionary<Mobile, Timer> m_Table = new Dictionary<Mobile, Timer>();

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

    public override TimeSpan CastDelayBase => TimeSpan.FromSeconds(0.5);

    public override double RequiredSkill => 45.0;
    public override int RequiredMana => 20;
    public override int RequiredTithing => 10;
    public override int MantraNumber => 1060723; // Forul Solum
    public override bool BlocksMovement => false;

    public override void OnCast()
    {
      if (CheckSequence())
      {
        Caster.PlaySound(0x0F5);
        Caster.PlaySound(0x1ED);
        Caster.FixedParticles(0x375A, 1, 30, 9966, 33, 2, EffectLayer.Head);
        Caster.FixedParticles(0x37B9, 1, 30, 9502, 43, 3, EffectLayer.Head);

        m_Table.TryGetValue(Caster, out Timer timer);
        timer?.Stop();

        double delay = (double)ComputePowerValue(1) / 60;

        // TODO: Should caps be applied?
        if (delay < 1.5)
          delay = 1.5;
        else if (delay > 3.5)
          delay = 3.5;

        m_Table[Caster] = Timer.DelayCall(TimeSpan.FromMinutes(delay), Expire_Callback, Caster);

        if (Caster is PlayerMobile mobile)
        {
          mobile.EnemyOfOneType = null;
          mobile.WaitingForEnemy = true;

          BuffInfo.AddBuff(mobile,
            new BuffInfo(BuffIcon.EnemyOfOne, 1075653, 1044111, TimeSpan.FromMinutes(delay), mobile));
        }
      }

      FinishSequence();
    }

    private static void Expire_Callback(Mobile m)
    {
      m_Table.Remove(m);

      m.PlaySound(0x1F8);

      if (m is PlayerMobile mobile)
      {
        mobile.EnemyOfOneType = null;
        mobile.WaitingForEnemy = false;
      }
    }
  }
}