using System;
using System.Collections.Generic;
using Server.ContextMenus;
using Server.Gumps;

namespace Server.Multis
{
  public class HouseSign : Item
  {
    public HouseSign(BaseHouse owner) : base(0xBD2)
    {
      Owner = owner;
      OriginalOwner = Owner.Owner;
      Movable = false;
    }

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

    public BaseHouse Owner{ get; private set; }

    [CommandProperty(AccessLevel.GameMaster)]
    public bool RestrictDecay
    {
      get => Owner?.RestrictDecay == true;
      set
      {
        if (Owner != null)
          Owner.RestrictDecay = value;
      }
    }

    [CommandProperty(AccessLevel.GameMaster)]
    public Mobile OriginalOwner{ get; private set; }

    public override bool ForceShowProperties => ObjectPropertyList.Enabled;

    public bool GettingProperties{ get; private set; }

    public string GetName() => Name ?? "An Unnamed House";

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

      if (Owner?.Deleted == false)
        Owner.Delete();
    }

    public override void AddNameProperty(ObjectPropertyList list)
    {
      list.Add(1061638); // A House Sign
    }

    public override void GetProperties(ObjectPropertyList list)
    {
      base.GetProperties(list);

      list.Add(1061639, Utility.FixHtml(GetName())); // Name: ~1_NAME~
      list.Add(1061640, Owner?.Owner == null ? "nobody" : Owner.Owner.Name); // Owner: ~1_OWNER~

      if (Owner != null)
      {
        list.Add(Owner.Public ? 1061641 : 1061642); // This House is Open to the Public : This is a Private Home

        GettingProperties = true;
        DecayLevel level = Owner.DecayLevel;
        GettingProperties = false;

        if (level == DecayLevel.DemolitionPending)
        {
          list.Add(1062497); // Demolition Pending
        }
        else if (level != DecayLevel.Ageless)
        {
          if (level == DecayLevel.Collapsed)
            level = DecayLevel.IDOC;

          list.Add(1062028, $"#{1043009 + (int)level}"); // Condition: This structure is ...
        }
      }
    }

    public override void OnSingleClick(Mobile from)
    {
      if (Owner != null && BaseHouse.DecayEnabled && Owner.DecayPeriod != TimeSpan.Zero)
      {
        string message;

        switch (Owner.DecayLevel)
        {
          case DecayLevel.Ageless:
            message = "ageless";
            break;
          case DecayLevel.Fairly:
            message = "fairly worn";
            break;
          case DecayLevel.Greatly:
            message = "greatly worn";
            break;
          case DecayLevel.LikeNew:
            message = "like new";
            break;
          case DecayLevel.Slightly:
            message = "slightly worn";
            break;
          case DecayLevel.Somewhat:
            message = "somewhat worn";
            break;
          default:
            message = "in danger of collapsing";
            break;
        }

        LabelTo(from, "This house is {0}.", message);
      }

      base.OnSingleClick(from);
    }

    public void ShowSign(Mobile m)
    {
      if (Owner != null)
      {
        if (Owner.IsFriend(m) && m.AccessLevel < AccessLevel.GameMaster)
        {
          #region Mondain's Legacy

          if (Core.ML && Owner.IsOwner(m) || !Core.ML)
            Owner.RefreshDecay();

          #endregion

          if (!Core.AOS)
            m.SendLocalizedMessage(501293); // Welcome back to the house, friend!
        }

        if (Owner.IsAosRules)
          m.SendGump(new HouseGumpAOS(HouseGumpPageAOS.Information, m, Owner));
        else
          m.SendGump(new HouseGump(m, Owner));
      }
    }

    public void ClaimGump_Callback(Mobile from, bool okay)
    {
      if (okay && Owner != null && Owner.Owner == null && Owner.DecayLevel != DecayLevel.DemolitionPending)
      {
        bool canClaim = Owner.CoOwners?.Count > 0 && Owner.IsCoOwner(from) || Owner.IsFriend(from);

        if (canClaim && !BaseHouse.HasAccountHouse(from))
        {
          Owner.Owner = from;
          Owner.LastTraded = DateTime.UtcNow;
        }
      }

      ShowSign(from);
    }

    public override void OnDoubleClick(Mobile m)
    {
      if (Owner == null)
        return;

      if (m.AccessLevel < AccessLevel.GameMaster && Owner.Owner == null &&
          Owner.DecayLevel != DecayLevel.DemolitionPending)
      {
        bool canClaim = Owner?.CoOwners.Count > 0 && Owner.IsCoOwner(m) || Owner.IsFriend(m);

        if (canClaim && !BaseHouse.HasAccountHouse(m))
          m.SendGump(new WarningGump(501036, 32512, 1049719, 32512, 420, 280, okay => ClaimGump_Callback(m, okay)));
      }

      ShowSign(m);
    }

    public override void GetContextMenuEntries(Mobile from, List<ContextMenuEntry> list)
    {
      base.GetContextMenuEntries(from, list);

      if (!BaseHouse.NewVendorSystem || !from.Alive || Owner?.IsAosRules != true)
        return;

      if (Owner.AreThereAvailableVendorsFor(from))
        list.Add(new VendorsEntry(this));

      if (Owner.VendorInventories.Count > 0)
        list.Add(new ReclaimVendorInventoryEntry(this));
    }

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

      writer.Write(0); // version

      writer.Write(Owner);
      writer.Write(OriginalOwner);
    }

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

      int version = reader.ReadInt();

      switch (version)
      {
        case 0:
        {
          Owner = reader.ReadItem() as BaseHouse;
          OriginalOwner = reader.ReadMobile();

          break;
        }
      }

      if (Name == "a house sign")
        Name = null;
    }

    private class VendorsEntry : ContextMenuEntry
    {
      private HouseSign m_Sign;

      public VendorsEntry(HouseSign sign) : base(6211) => m_Sign = sign;

      public override void OnClick()
      {
        Mobile from = Owner.From;

        if (!from.CheckAlive() || m_Sign.Deleted || m_Sign.Owner == null ||
            !m_Sign.Owner.AreThereAvailableVendorsFor(from))
          return;

        if (from.Map != m_Sign.Map || !from.InRange(m_Sign, 5))
          from.SendLocalizedMessage(
            1062429); // You must be within five paces of the house sign to use this option.
        else
          from.SendGump(new HouseGumpAOS(HouseGumpPageAOS.Vendors, from, m_Sign.Owner));
      }
    }

    private class ReclaimVendorInventoryEntry : ContextMenuEntry
    {
      private HouseSign m_Sign;

      public ReclaimVendorInventoryEntry(HouseSign sign) : base(6213) => m_Sign = sign;

      public override void OnClick()
      {
        Mobile from = Owner.From;

        if (m_Sign.Deleted || m_Sign.Owner == null || m_Sign.Owner.VendorInventories.Count == 0 ||
            !from.CheckAlive())
          return;

        if (from.Map != m_Sign.Map || !from.InRange(m_Sign, 5))
        {
          from.SendLocalizedMessage(
            1062429); // You must be within five paces of the house sign to use this option.
        }
        else
        {
          from.CloseGump<VendorInventoryGump>();
          from.SendGump(new VendorInventoryGump(m_Sign.Owner, from));
        }
      }
    }
  }
}