using System;

namespace Server.Items
{
  public class DecayedCorpse : Container
  {
    private static TimeSpan m_DefaultDecayTime = TimeSpan.FromMinutes(7.0);
    private DateTime m_DecayTime;
    private Timer m_DecayTimer;

    public DecayedCorpse(string name) : base(Utility.Random(0xECA, 9))
    {
      Movable = false;
      Name = name;

      BeginDecay(m_DefaultDecayTime);
    }

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

    // Do not display (x items, y stones)
    public override bool DisplaysContent => false;

    public void BeginDecay(TimeSpan delay)
    {
      m_DecayTimer?.Stop();

      m_DecayTime = DateTime.UtcNow + delay;

      m_DecayTimer = new InternalTimer(this, delay);
      m_DecayTimer.Start();
    }

    public override void OnAfterDelete()
    {
      m_DecayTimer?.Stop();

      m_DecayTimer = null;
    }

    // Do not display (x items, y stones)
    public override bool CheckContentDisplay(Mobile from)
    {
      return false;
    }

    public override void AddNameProperty(ObjectPropertyList list)
    {
      list.Add(1046414, Name); // the remains of ~1_NAME~
    }

    public override void OnSingleClick(Mobile from)
    {
      LabelTo(from, 1046414, Name); // the remains of ~1_NAME~
    }

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

      writer.Write(1); // version

      writer.Write(m_DecayTimer != null);

      if (m_DecayTimer != null)
        writer.WriteDeltaTime(m_DecayTime);
    }

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

      int version = reader.ReadInt();

      switch (version)
      {
        case 0:
        {
          BeginDecay(m_DefaultDecayTime);

          break;
        }
        case 1:
        {
          if (reader.ReadBool())
            BeginDecay(reader.ReadDeltaTime() - DateTime.UtcNow);

          break;
        }
      }
    }

    private class InternalTimer : Timer
    {
      private DecayedCorpse m_Corpse;

      public InternalTimer(DecayedCorpse c, TimeSpan delay) : base(delay)
      {
        m_Corpse = c;
        Priority = TimerPriority.FiveSeconds;
      }

      protected override void OnTick()
      {
        m_Corpse.Delete();
      }
    }
  }
}