using System.Collections.Generic;
using Server.ContextMenus;
using Server.Gumps;
using Server.Items;
using Server.Network;
using Server.Targeting;

namespace Server.Mobiles
{
  public class AnimalTrainer : BaseVendor
  {
    private List<SBInfo> m_SBInfos = new List<SBInfo>();

    [Constructible]
    public AnimalTrainer() : base("the animal trainer")
    {
      SetSkill(SkillName.AnimalLore, 64.0, 100.0);
      SetSkill(SkillName.AnimalTaming, 90.0, 100.0);
      SetSkill(SkillName.Veterinary, 65.0, 88.0);
    }

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

    protected override List<SBInfo> SBInfos => m_SBInfos;

    public override VendorShoeType ShoeType => Female ? VendorShoeType.ThighBoots : VendorShoeType.Boots;

    public override void InitSBInfo()
    {
      m_SBInfos.Add(new SBAnimalTrainer());
    }

    public override int GetShoeHue()
    {
      return 0;
    }

    public override void InitOutfit()
    {
      base.InitOutfit();

      AddItem(Utility.RandomBool() ? new QuarterStaff() : (Item)new ShepherdsCrook());
    }

    public override void AddCustomContextEntries(Mobile from, List<ContextMenuEntry> list)
    {
      if (from.Alive)
      {
        list.Add(new StableEntry(this, from));

        if (from.Stabled.Count > 0)
          list.Add(new ClaimAllEntry(this, from));
      }

      base.AddCustomContextEntries(from, list);
    }

    public static int GetMaxStabled(Mobile from)
    {
      double taming = from.Skills.AnimalTaming.Value;
      double anlore = from.Skills.AnimalLore.Value;
      double vetern = from.Skills.Veterinary.Value;
      double sklsum = taming + anlore + vetern;

      int max;

      if (sklsum >= 240.0)
        max = 5;
      else if (sklsum >= 200.0)
        max = 4;
      else if (sklsum >= 160.0)
        max = 3;
      else
        max = 2;

      if (taming >= 100.0)
        max += (int)((taming - 90.0) / 10);

      if (anlore >= 100.0)
        max += (int)((anlore - 90.0) / 10);

      if (vetern >= 100.0)
        max += (int)((vetern - 90.0) / 10);

      return max;
    }

    private void CloseClaimList(Mobile from)
    {
      from.CloseGump<ClaimListGump>();
    }

    public void BeginClaimList(Mobile from)
    {
      if (Deleted || !from.CheckAlive())
        return;

      List<BaseCreature> list = new List<BaseCreature>();

      for (int i = 0; i < from.Stabled.Count; ++i)
      {
        BaseCreature pet = from.Stabled[i] as BaseCreature;

        if (pet?.Deleted != false)
        {
          pet.IsStabled = false;
          pet.StabledBy = null;
          from.Stabled.RemoveAt(i);
          --i;
          continue;
        }

        list.Add(pet);
      }

      if (list.Count > 0)
        from.SendGump(new ClaimListGump(this, from, list));
      else
        SayTo(from, 502671); // But I have no animals stabled with me at the moment!
    }

    public void EndClaimList(Mobile from, BaseCreature pet)
    {
      if (pet?.Deleted != false || from.Map != Map || !from.Stabled.Contains(pet) || !from.CheckAlive())
        return;

      if (!from.InRange(this, 14))
      {
        from.SendLocalizedMessage(500446); // That is too far away.
        return;
      }

      if (CanClaim(from, pet))
      {
        DoClaim(from, pet);

        from.Stabled.Remove(pet);

        (from as PlayerMobile)?.AutoStabled.Remove(pet);
      }
      else
      {
        SayTo(from, 1049612, pet.Name); // ~1_NAME~ remained in the stables because you have too many followers.
      }
    }

    public void BeginStable(Mobile from)
    {
      if (Deleted || !from.CheckAlive())
        return;

      Container bank = from.FindBankNoCreate();

      if (!(from.Backpack?.GetAmount(typeof(Gold)) >= 30) &&
          !(bank?.GetAmount(typeof(Gold)) >= 30))
      {
        SayTo(from, 1042556); // Thou dost not have enough gold, not even in thy bank account.
      }
      else
      {
        /* I charge 30 gold per pet for a real week's stable time.
         * I will withdraw it from thy bank account.
         * Which animal wouldst thou like to stable here?
         */
        from.SendLocalizedMessage(1042558);

        from.Target = new StableTarget(this);
      }
    }

    public void EndStable(Mobile from, BaseCreature pet)
    {
      if (Deleted || !from.CheckAlive())
        return;

      if (pet.Body.IsHuman)
      {
        SayTo(from, 502672); // HA HA HA! Sorry, I am not an inn.
      }
      else if (!pet.Controlled)
      {
        SayTo(from, 1048053); // You can't stable that!
      }
      else if (pet.ControlMaster != from)
      {
        SayTo(from, 1042562); // You do not own that pet!
      }
      else if (pet.IsDeadPet)
      {
        SayTo(from, 1049668); // Living pets only, please.
      }
      else if (pet.Summoned)
      {
        SayTo(from, 502673); // I can not stable summoned creatures.
      }
/*
			else if ( pet.Allured )
			{
				SayTo( from, 1048053 ); // You can't stable that!
			}
*/
      else if ((pet is PackLlama || pet is PackHorse || pet is Beetle) && pet.Backpack?.Items.Count > 0)
      {
        SayTo(from, 1042563); // You need to unload your pet.
      }
      else if (pet.Combatant != null && pet.InRange(pet.Combatant, 12) && pet.Map == pet.Combatant.Map)
      {
        SayTo(from, 1042564); // I'm sorry.  Your pet seems to be busy.
      }
      else if (from.Stabled.Count >= GetMaxStabled(from))
      {
        SayTo(from, 1042565); // You have too many pets in the stables!
      }
      else
      {
        Container bank = from.FindBankNoCreate();

        if (from.Backpack?.ConsumeTotal(typeof(Gold), 30) == true ||
            bank?.ConsumeTotal(typeof(Gold), 30) == true)
        {
          pet.ControlTarget = null;
          pet.ControlOrder = OrderType.Stay;
          pet.Internalize();

          pet.SetControlMaster(null);
          pet.SummonMaster = null;

          pet.IsStabled = true;
          pet.StabledBy = from;

          if (Core.SE)
            pet.Loyalty = MaxLoyalty; // Wonderfully happy

          from.Stabled.Add(pet);

          SayTo(from,
            Core.AOS
              ? 1049677
              : 502679); // [AOS: Your pet has been stabled.] Very well, thy pet is stabled. Thou mayst recover it by saying 'claim' to me. In one real world week, I shall sell it off if it is not claimed!
        }
        else
        {
          SayTo(from, 502677); // But thou hast not the funds in thy bank account!
        }
      }
    }

    public void Claim(Mobile from, string petName = null)
    {
      if (Deleted || !from.CheckAlive())
        return;

      bool claimed = false;
      int stabled = 0;

      bool claimByName = petName != null;

      for (int i = 0; i < from.Stabled.Count; ++i)
      {
        BaseCreature pet = from.Stabled[i] as BaseCreature;

        if (pet?.Deleted != false)
        {
          pet.IsStabled = false;
          pet.StabledBy = null;
          from.Stabled.RemoveAt(i);
          --i;
          continue;
        }

        ++stabled;

        if (claimByName && !Insensitive.Equals(pet.Name, petName))
          continue;

        if (CanClaim(from, pet))
        {
          DoClaim(from, pet);

          from.Stabled.RemoveAt(i);

          (from as PlayerMobile)?.AutoStabled.Remove(pet);

          --i;

          claimed = true;
        }
        else
        {
          SayTo(from, 1049612, pet.Name); // ~1_NAME~ remained in the stables because you have too many followers.
        }
      }

      if (claimed)
        SayTo(from, 1042559); // Here you go... and good day to you!
      else if (stabled == 0)
        SayTo(from, 502671); // But I have no animals stabled with me at the moment!
      else if (claimByName)
        BeginClaimList(from);
    }

    public bool CanClaim(Mobile from, BaseCreature pet)
    {
      return from.Followers + pet.ControlSlots <= from.FollowersMax;
    }

    private void DoClaim(Mobile from, BaseCreature pet)
    {
      pet.SetControlMaster(from);

      if (pet.Summoned)
        pet.SummonMaster = from;

      pet.ControlTarget = from;
      pet.ControlOrder = OrderType.Follow;

      pet.MoveToWorld(from.Location, from.Map);

      pet.IsStabled = false;
      pet.StabledBy = null;

      if (Core.SE)
        pet.Loyalty = MaxLoyalty; // Wonderfully Happy
    }

    public override bool HandlesOnSpeech(Mobile from)
    {
      return true;
    }

    public override void OnSpeech(SpeechEventArgs e)
    {
      if (!e.Handled && e.HasKeyword(0x0008)) // *stable*
      {
        e.Handled = true;

        CloseClaimList(e.Mobile);
        BeginStable(e.Mobile);
      }
      else if (!e.Handled && e.HasKeyword(0x0009)) // *claim*
      {
        e.Handled = true;

        CloseClaimList(e.Mobile);

        int index = e.Speech.IndexOf(' ');

        if (index != -1)
          Claim(e.Mobile, e.Speech.Substring(index).Trim());
        else
          Claim(e.Mobile);
      }
      else
      {
        base.OnSpeech(e);
      }
    }

    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();
    }

    private class StableEntry : ContextMenuEntry
    {
      private Mobile m_From;
      private AnimalTrainer m_Trainer;

      public StableEntry(AnimalTrainer trainer, Mobile from) : base(6126, 12)
      {
        m_Trainer = trainer;
        m_From = from;
      }

      public override void OnClick()
      {
        m_Trainer.BeginStable(m_From);
      }
    }

    private class ClaimListGump : Gump
    {
      private Mobile m_From;
      private List<BaseCreature> m_List;
      private AnimalTrainer m_Trainer;

      public ClaimListGump(AnimalTrainer trainer, Mobile from, List<BaseCreature> list) : base(50, 50)
      {
        m_Trainer = trainer;
        m_From = from;
        m_List = list;

        from.CloseGump<ClaimListGump>();

        AddPage(0);

        AddBackground(0, 0, 325, 50 + list.Count * 20, 9250);
        AddAlphaRegion(5, 5, 315, 40 + list.Count * 20);

        AddHtml(15, 15, 275, 20, "<BASEFONT COLOR=#FFFFFF>Select a pet to retrieve from the stables:</BASEFONT>");

        for (int i = 0; i < list.Count; ++i)
        {
          BaseCreature pet = list[i];

          if (pet?.Deleted != false)
            continue;

          AddButton(15, 39 + i * 20, 10006, 10006, i + 1);
          AddHtml(32, 35 + i * 20, 275, 18, $"<BASEFONT COLOR=#C0C0EE>{pet.Name}</BASEFONT>");
        }
      }

      public override void OnResponse(NetState sender, RelayInfo info)
      {
        int index = info.ButtonID - 1;

        if (index >= 0 && index < m_List.Count)
          m_Trainer.EndClaimList(m_From, m_List[index]);
      }
    }

    private class ClaimAllEntry : ContextMenuEntry
    {
      private Mobile m_From;
      private AnimalTrainer m_Trainer;

      public ClaimAllEntry(AnimalTrainer trainer, Mobile from) : base(6127, 12)
      {
        m_Trainer = trainer;
        m_From = from;
      }

      public override void OnClick()
      {
        m_Trainer.Claim(m_From);
      }
    }

    private class StableTarget : Target
    {
      private AnimalTrainer m_Trainer;

      public StableTarget(AnimalTrainer trainer) : base(12, false, TargetFlags.None)
      {
        m_Trainer = trainer;
      }

      protected override void OnTarget(Mobile from, object targeted)
      {
        if (targeted is BaseCreature creature)
          m_Trainer.EndStable(from, creature);
        else if (targeted == from)
          m_Trainer.SayTo(from, 502672); // HA HA HA! Sorry, I am not an inn.
        else
          m_Trainer.SayTo(from, 1048053); // You can't stable that!
      }
    }
  }
}