using System;
using System.Collections.Generic;

namespace Server.Items
{
  public class InvisibilityPotion : BasePotion
  {
    private static Dictionary<Mobile, Timer> m_Table = new Dictionary<Mobile, Timer>();

    [Constructible]
    public InvisibilityPotion() : base(0xF0A, PotionEffect.Invisibility)
    {
      Hue = 0x48D;
    }

    public InvisibilityPotion(Serial serial) : base(serial)
    {
    }

    public override int LabelNumber => 1072941; // Potion of Invisibility

    public override void Drink(Mobile from)
    {
      if (from.Hidden)
      {
        from.SendLocalizedMessage(1073185); // You are already unseen.
        return;
      }

      if (HasTimer(from))
      {
        from.SendLocalizedMessage(1073186); // An invisibility potion is already taking effect on your person.
        return;
      }

      Consume();
      m_Table[from] = Timer.DelayCall(TimeSpan.FromSeconds(2), Hide, from);
      PlayDrinkEffect(from);
    }

    public static void Hide(Mobile m)
    {
      Effects.SendLocationParticles(
        EffectItem.Create(new Point3D(m.X, m.Y, m.Z + 16), m.Map, EffectItem.DefaultDuration), 0x376A, 10, 15, 5045);
      m.PlaySound(0x3C4);

      m.Hidden = true;

      BuffInfo.RemoveBuff(m, BuffIcon.HidingAndOrStealth);
      BuffInfo.AddBuff(m, new BuffInfo(BuffIcon.Invisibility, 1075825)); //Invisibility/Invisible

      RemoveTimer(m);

      Timer.DelayCall(TimeSpan.FromSeconds(30), EndHide, m);
    }

    public static void EndHide(Mobile m)
    {
      m.RevealingAction();
      RemoveTimer(m);
    }

    public static bool HasTimer(Mobile m)
    {
      return m_Table.ContainsKey(m);
    }

    public static void RemoveTimer(Mobile m, bool interrupted = false)
    {
      if (m_Table.TryGetValue(m, out Timer timer))
      {
        if (interrupted)
          m.SendLocalizedMessage(1073187); // The invisibility effect is interrupted.
        timer.Stop();
        m_Table.Remove(m);
      }
    }

    public override void Serialize(GenericWriter writer)
    {
      base.Serialize(writer);

      writer.Write(0); // version
    }

    public override void Deserialize(GenericReader reader)
    {
      base.Deserialize(reader);

      int version = reader.ReadInt();
    }
  }
}