using System;
using System.Collections.ObjectModel;
using Server.Mobiles;

namespace Server.Ethics
{
  public class PlayerCollection : Collection<Player>
  {
  }

  [PropertyObject]
  public class Player
  {
    private DateTime m_Shield;

    public Player(Ethic ethic, Mobile mobile)
    {
      Ethic = ethic;
      Mobile = mobile;

      Power = 5;
      History = 5;
    }

    public Player(Ethic ethic, IGenericReader reader)
    {
      Ethic = ethic;

      int version = reader.ReadEncodedInt();

      switch (version)
      {
        case 0:
          {
            Mobile = reader.ReadMobile();

            Power = reader.ReadEncodedInt();
            History = reader.ReadEncodedInt();

            Steed = reader.ReadMobile();
            Familiar = reader.ReadMobile();

            m_Shield = reader.ReadDeltaTime();

            break;
          }
      }
    }

    public Ethic Ethic { get; }

    public Mobile Mobile { get; }

    [CommandProperty(AccessLevel.GameMaster, AccessLevel.Administrator)]
    public int Power { get; set; }

    [CommandProperty(AccessLevel.GameMaster, AccessLevel.Administrator)]
    public int History { get; set; }

    [CommandProperty(AccessLevel.GameMaster, AccessLevel.Administrator)]
    public Mobile Steed { get; set; }

    [CommandProperty(AccessLevel.GameMaster, AccessLevel.Administrator)]
    public Mobile Familiar { get; set; }

    [CommandProperty(AccessLevel.GameMaster)]
    public bool IsShielded
    {
      get
      {
        if (m_Shield == DateTime.MinValue)
          return false;

        if (DateTime.UtcNow < m_Shield + TimeSpan.FromHours(1.0))
          return true;

        FinishShield();
        return false;
      }
    }

    public static Player Find(Mobile mob) => Find(mob, false);

    public static Player Find(Mobile mob, bool inherit)
    {
      PlayerMobile pm = mob as PlayerMobile;

      if (pm == null)
      {
        if (inherit && mob is BaseCreature bc)
        {
          if (bc.Controlled)
            pm = bc.ControlMaster as PlayerMobile;
          else if (bc.Summoned)
            pm = bc.SummonMaster as PlayerMobile;
        }

        if (pm == null)
          return null;
      }

      Player pl = pm.EthicPlayer;

      if (pl?.Ethic.IsEligible(pl.Mobile) == false)
        pm.EthicPlayer = pl = null;

      return pl;
    }

    public void BeginShield()
    {
      m_Shield = DateTime.UtcNow;
    }

    public void FinishShield()
    {
      m_Shield = DateTime.MinValue;
    }

    public void CheckAttach()
    {
      if (Ethic.IsEligible(Mobile))
        Attach();
    }

    public void Attach()
    {
      if (Mobile is PlayerMobile mobile)
        mobile.EthicPlayer = this;

      Ethic.Players.Add(this);
    }

    public void Detach()
    {
      if (Mobile is PlayerMobile mobile)
        mobile.EthicPlayer = null;

      Ethic.Players.Remove(this);
    }

    public void Serialize(IGenericWriter writer)
    {
      writer.WriteEncodedInt(0); // version

      writer.Write(Mobile);

      writer.WriteEncodedInt(Power);
      writer.WriteEncodedInt(History);

      writer.Write(Steed);
      writer.Write(Familiar);

      writer.WriteDeltaTime(m_Shield);
    }
  }
}