using System;
using System.Collections.Generic;
using Server.Network;

namespace Server.Items
{
  public class FlourMillSouthAddon : BaseAddon, IFlourMill
  {
    private static int[][] m_StageTable =
    {
      new[] { 0x192C, 0x192D, 0x1931 },
      new[] { 0x192E, 0x192F, 0x1932 },
      new[] { 0x1930, 0x1930, 0x1934 }
    };

    private int m_Flour;
    private Timer m_Timer;

    [Constructible]
    public FlourMillSouthAddon()
    {
      AddComponent(new AddonComponent(0x192C), 0, -1, 0);
      AddComponent(new AddonComponent(0x192E), 0, 0, 0);
      AddComponent(new AddonComponent(0x1930), 0, 1, 0);
    }

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

    public override BaseAddonDeed Deed => new FlourMillSouthDeed();

    [CommandProperty(AccessLevel.GameMaster)]
    public bool HasFlour => m_Flour > 0;

    [CommandProperty(AccessLevel.GameMaster)]
    public bool IsFull => m_Flour >= MaxFlour;

    [CommandProperty(AccessLevel.GameMaster)]
    public bool IsWorking => m_Timer != null;

    [CommandProperty(AccessLevel.GameMaster)]
    public int MaxFlour => 2;

    [CommandProperty(AccessLevel.GameMaster)]
    public int CurFlour
    {
      get => m_Flour;
      set
      {
        m_Flour = Math.Max(0, Math.Min(value, MaxFlour));
        UpdateStage();
      }
    }

    public void StartWorking(Mobile from)
    {
      if (IsWorking)
        return;

      m_Timer = Timer.DelayCall(TimeSpan.FromSeconds(5.0), FinishWorking_Callback, from);
      UpdateStage();
    }

    private void FinishWorking_Callback(Mobile from)
    {
      if (m_Timer != null)
      {
        m_Timer.Stop();
        m_Timer = null;
      }

      if (from?.Deleted == false && !Deleted && IsFull)
      {
        SackFlour flour = new SackFlour();

        flour.ItemID = Utility.RandomBool() ? 4153 : 4165;

        if (from.PlaceInBackpack(flour))
        {
          m_Flour = 0;
        }
        else
        {
          flour.Delete();
          from.SendLocalizedMessage(500998); // There is not enough room in your backpack!  You stop grinding.
        }
      }

      UpdateStage();
    }

    private int[] FindItemTable(int itemID)
    {
      for (int i = 0; i < m_StageTable.Length; ++i)
      {
        int[] itemTable = m_StageTable[i];

        for (int j = 0; j < itemTable.Length; ++j)
          if (itemTable[j] == itemID)
            return itemTable;
      }

      return null;
    }

    public void UpdateStage()
    {
      if (IsWorking)
        UpdateStage(FlourMillStage.Working);
      else if (HasFlour)
        UpdateStage(FlourMillStage.Filled);
      else
        UpdateStage(FlourMillStage.Empty);
    }

    public void UpdateStage(FlourMillStage stage)
    {
      List<AddonComponent> components = Components;

      int[][] stageTable = m_StageTable;

      for (int i = 0; i < components.Count; ++i)
      {
        if (!(components[i] is AddonComponent component))
          continue;

        int[] itemTable = FindItemTable(component.ItemID);

        if (itemTable != null)
          component.ItemID = itemTable[(int)stage];
      }
    }

    public override void OnComponentUsed(AddonComponent c, Mobile from)
    {
      if (!from.InRange(GetWorldLocation(), 4) || !from.InLOS(this))
        from.LocalOverheadMessage(MessageType.Regular, 0x3B2, 1019045); // I can't reach that.
      else if (!IsFull)
        from.SendLocalizedMessage(500997); // You need more wheat to make a sack of flour.
      else
        StartWorking(from);
    }

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

      writer.Write(1); // version

      writer.Write(m_Flour);
    }

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

      int version = reader.ReadInt();

      switch (version)
      {
        case 1:
        {
          m_Flour = reader.ReadInt();
          break;
        }
      }

      UpdateStage();
    }
  }

  public class FlourMillSouthDeed : BaseAddonDeed
  {
    [Constructible]
    public FlourMillSouthDeed()
    {
    }

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

    public override BaseAddon Addon => new FlourMillSouthAddon();
    public override int LabelNumber => 1044348; // flour mill (south)

    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();
    }
  }
}