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

namespace Server.Engines.Craft
{
  public class CraftGump : Gump
  {
    private const int LabelHue = 0x480;
    private const int LabelColor = 0x7FFF;
    private const int FontColor = 0xFFFFFF;
    private CraftSystem m_CraftSystem;
    private Mobile m_From;

    private CraftPage m_Page;
    private BaseTool m_Tool;

    public CraftGump(Mobile from, CraftSystem craftSystem, BaseTool tool, object notice, CraftPage page = CraftPage.None) : base(40, 40)
    {
      m_From = from;
      m_CraftSystem = craftSystem;
      m_Tool = tool;
      m_Page = page;

      CraftContext context = craftSystem.GetContext(from);

      from.CloseGump<CraftGump>();
      from.CloseGump<CraftGumpItem>();

      AddPage(0);

      AddBackground(0, 0, 530, 437, 5054);
      AddImageTiled(10, 10, 510, 22, 2624);
      AddImageTiled(10, 292, 150, 45, 2624);
      AddImageTiled(165, 292, 355, 45, 2624);
      AddImageTiled(10, 342, 510, 85, 2624);
      AddImageTiled(10, 37, 200, 250, 2624);
      AddImageTiled(215, 37, 305, 250, 2624);
      AddAlphaRegion(10, 10, 510, 417);

      if (craftSystem.GumpTitleNumber > 0)
        AddHtmlLocalized(10, 12, 510, 20, craftSystem.GumpTitleNumber, LabelColor);
      else
        AddHtml(10, 12, 510, 20, craftSystem.GumpTitleString);

      AddHtmlLocalized(10, 37, 200, 22, 1044010, LabelColor); // <CENTER>CATEGORIES</CENTER>
      AddHtmlLocalized(215, 37, 305, 22, 1044011, LabelColor); // <CENTER>SELECTIONS</CENTER>
      AddHtmlLocalized(10, 302, 150, 25, 1044012, LabelColor); // <CENTER>NOTICES</CENTER>

      AddButton(15, 402, 4017, 4019, 0);
      AddHtmlLocalized(50, 405, 150, 18, 1011441, LabelColor); // EXIT

      AddButton(270, 402, 4005, 4007, GetButtonID(6, 2));
      AddHtmlLocalized(305, 405, 150, 18, 1044013, LabelColor); // MAKE LAST

      // Mark option
      if (craftSystem.MarkOption)
      {
        AddButton(270, 362, 4005, 4007, GetButtonID(6, 6));
        AddHtmlLocalized(305, 365, 150, 18, 1044017 + (context == null ? 0 : (int)context.MarkOption), LabelColor); // MARK ITEM
      }
      // ****************************************

      // Resmelt option
      if (craftSystem.Resmelt)
      {
        AddButton(15, 342, 4005, 4007, GetButtonID(6, 1));
        AddHtmlLocalized(50, 345, 150, 18, 1044259, LabelColor); // SMELT ITEM
      }
      // ****************************************

      // Repair option
      if (craftSystem.Repair)
      {
        AddButton(270, 342, 4005, 4007, GetButtonID(6, 5));
        AddHtmlLocalized(305, 345, 150, 18, 1044260, LabelColor); // REPAIR ITEM
      }
      // ****************************************

      // Enhance option
      if (craftSystem.CanEnhance)
      {
        AddButton(270, 382, 4005, 4007, GetButtonID(6, 8));
        AddHtmlLocalized(305, 385, 150, 18, 1061001, LabelColor); // ENHANCE ITEM
      }
      // ****************************************

      if (notice is int noticeInt && noticeInt > 0)
        AddHtmlLocalized(170, 295, 350, 40, noticeInt, LabelColor);
      else if (notice is string)
        AddHtml(170, 295, 350, 40, $"<BASEFONT COLOR=#{FontColor:X6}>{notice}</BASEFONT>");

      // If the system has more than one resource
      if (craftSystem.CraftSubRes.Init)
      {
        string nameString = craftSystem.CraftSubRes.NameString;
        int nameNumber = craftSystem.CraftSubRes.NameNumber;

        int resIndex = context?.LastResourceIndex ?? -1;

        Type resourceType = craftSystem.CraftSubRes.ResType;

        if (resIndex > -1)
        {
          CraftSubRes subResource = craftSystem.CraftSubRes.GetAt(resIndex);

          nameString = subResource.NameString;
          nameNumber = subResource.NameNumber;
          resourceType = subResource.ItemType;
        }

        int resourceCount = 0;

        if (from.Backpack != null)
        {
          Item[] items = from.Backpack.FindItemsByType(resourceType);

          for (int i = 0; i < items.Length; ++i)
            resourceCount += items[i].Amount;
        }

        AddButton(15, 362, 4005, 4007, GetButtonID(6, 0));

        if (nameNumber > 0)
          AddHtmlLocalized(50, 365, 250, 18, nameNumber, resourceCount.ToString(), LabelColor);
        else
          AddLabel(50, 362, LabelHue, $"{nameString} ({resourceCount} Available)");
      }
      // ****************************************

      // For dragon scales
      if (craftSystem.CraftSubRes2.Init)
      {
        string nameString = craftSystem.CraftSubRes2.NameString;
        int nameNumber = craftSystem.CraftSubRes2.NameNumber;

        int resIndex = context?.LastResourceIndex2 ?? -1;

        Type resourceType = craftSystem.CraftSubRes2.ResType;

        if (resIndex > -1)
        {
          CraftSubRes subResource = craftSystem.CraftSubRes2.GetAt(resIndex);

          nameString = subResource.NameString;
          nameNumber = subResource.NameNumber;
          resourceType = subResource.ItemType;
        }

        int resourceCount = 0;

        if (from.Backpack != null)
        {
          Item[] items = from.Backpack.FindItemsByType(resourceType);

          for (int i = 0; i < items.Length; ++i)
            resourceCount += items[i].Amount;
        }

        AddButton(15, 382, 4005, 4007, GetButtonID(6, 7));

        if (nameNumber > 0)
          AddHtmlLocalized(50, 385, 250, 18, nameNumber, resourceCount.ToString(), LabelColor);
        else
          AddLabel(50, 385, LabelHue, $"{nameString} ({resourceCount} Available)");
      }
      // ****************************************

      CreateGroupList();

      if (page == CraftPage.PickResource)
        CreateResList(false, from);
      else if (page == CraftPage.PickResource2)
        CreateResList(true, from);
      else if (context?.LastGroupIndex > -1)
        CreateItemList(context.LastGroupIndex);
    }

    public void CreateResList(bool opt, Mobile from)
    {
      CraftSubResCol res = opt ? m_CraftSystem.CraftSubRes2 : m_CraftSystem.CraftSubRes;

      for (int i = 0; i < res.Count; ++i)
      {
        int index = i % 10;

        CraftSubRes subResource = res.GetAt(i);

        if (index == 0)
        {
          if (i > 0)
            AddButton(485, 260, 4005, 4007, 0, GumpButtonType.Page, i / 10 + 1);

          AddPage(i / 10 + 1);

          if (i > 0)
            AddButton(455, 260, 4014, 4015, 0, GumpButtonType.Page, i / 10);

          CraftContext context = m_CraftSystem.GetContext(m_From);

          AddButton(220, 260, 4005, 4007, GetButtonID(6, 4));
          AddHtmlLocalized(255, 263, 200, 18, context == null || !context.DoNotColor ? 1061591 : 1061590,
            LabelColor);
        }

        int resourceCount = 0;

        if (from.Backpack != null)
        {
          Item[] items = from.Backpack.FindItemsByType(subResource.ItemType);

          for (int j = 0; j < items.Length; ++j)
            resourceCount += items[j].Amount;
        }

        AddButton(220, 60 + index * 20, 4005, 4007, GetButtonID(5, i));

        if (subResource.NameNumber > 0)
          AddHtmlLocalized(255, 63 + index * 20, 250, 18, subResource.NameNumber, resourceCount.ToString(),
            LabelColor);
        else
          AddLabel(255, 60 + index * 20, LabelHue, $"{subResource.NameString} ({resourceCount})");
      }
    }

    public void CreateMakeLastList()
    {
      CraftContext context = m_CraftSystem.GetContext(m_From);

      if (context == null)
        return;

      List<CraftItem> items = context.Items;

      if (items.Count > 0)
        for (int i = 0; i < items.Count; ++i)
        {
          int index = i % 10;

          CraftItem craftItem = items[i];

          if (index == 0)
          {
            if (i > 0)
            {
              AddButton(370, 260, 4005, 4007, 0, GumpButtonType.Page, i / 10 + 1);
              AddHtmlLocalized(405, 263, 100, 18, 1044045, LabelColor); // NEXT PAGE
            }

            AddPage(i / 10 + 1);

            if (i > 0)
            {
              AddButton(220, 260, 4014, 4015, 0, GumpButtonType.Page, i / 10);
              AddHtmlLocalized(255, 263, 100, 18, 1044044, LabelColor); // PREV PAGE
            }
          }

          AddButton(220, 60 + index * 20, 4005, 4007, GetButtonID(3, i));

          if (craftItem.NameNumber > 0)
            AddHtmlLocalized(255, 63 + index * 20, 220, 18, craftItem.NameNumber, LabelColor);
          else
            AddLabel(255, 60 + index * 20, LabelHue, craftItem.NameString);

          AddButton(480, 60 + index * 20, 4011, 4012, GetButtonID(4, i));
        }
      else
        AddHtmlLocalized(230, 62, 200, 22, 1044165, LabelColor); // You haven't made anything yet.
    }

    public void CreateItemList(int selectedGroup)
    {
      if (selectedGroup == 501) // 501 : Last 10
      {
        CreateMakeLastList();
        return;
      }

      CraftGroupCol craftGroupCol = m_CraftSystem.CraftGroups;
      CraftGroup craftGroup = craftGroupCol.GetAt(selectedGroup);
      CraftItemCol craftItemCol = craftGroup.CraftItems;

      for (int i = 0; i < craftItemCol.Count; ++i)
      {
        int index = i % 10;

        CraftItem craftItem = craftItemCol.GetAt(i);

        if (index == 0)
        {
          if (i > 0)
          {
            AddButton(370, 260, 4005, 4007, 0, GumpButtonType.Page, i / 10 + 1);
            AddHtmlLocalized(405, 263, 100, 18, 1044045, LabelColor); // NEXT PAGE
          }

          AddPage(i / 10 + 1);

          if (i > 0)
          {
            AddButton(220, 260, 4014, 4015, 0, GumpButtonType.Page, i / 10);
            AddHtmlLocalized(255, 263, 100, 18, 1044044, LabelColor); // PREV PAGE
          }
        }

        AddButton(220, 60 + index * 20, 4005, 4007, GetButtonID(1, i));

        if (craftItem.NameNumber > 0)
          AddHtmlLocalized(255, 63 + index * 20, 220, 18, craftItem.NameNumber, LabelColor);
        else
          AddLabel(255, 60 + index * 20, LabelHue, craftItem.NameString);

        AddButton(480, 60 + index * 20, 4011, 4012, GetButtonID(2, i));
      }
    }

    public int CreateGroupList()
    {
      CraftGroupCol craftGroupCol = m_CraftSystem.CraftGroups;

      AddButton(15, 60, 4005, 4007, GetButtonID(6, 3));
      AddHtmlLocalized(50, 63, 150, 18, 1044014, LabelColor); // LAST TEN

      for (int i = 0; i < craftGroupCol.Count; i++)
      {
        CraftGroup craftGroup = craftGroupCol.GetAt(i);

        AddButton(15, 80 + i * 20, 4005, 4007, GetButtonID(0, i));

        if (craftGroup.NameNumber > 0)
          AddHtmlLocalized(50, 83 + i * 20, 150, 18, craftGroup.NameNumber, LabelColor);
        else
          AddLabel(50, 80 + i * 20, LabelHue, craftGroup.NameString);
      }

      return craftGroupCol.Count;
    }

    public static int GetButtonID(int type, int index)
    {
      return 1 + type + index * 7;
    }

    public void CraftItem(CraftItem item)
    {
      int num = m_CraftSystem.CanCraft(m_From, m_Tool, item.ItemType);

      if (num > 0)
      {
        m_From.SendGump(new CraftGump(m_From, m_CraftSystem, m_Tool, num));
      }
      else
      {
        Type type = null;

        CraftContext context = m_CraftSystem.GetContext(m_From);

        if (context != null)
        {
          CraftSubResCol res = item.UseSubRes2 ? m_CraftSystem.CraftSubRes2 : m_CraftSystem.CraftSubRes;
          int resIndex = item.UseSubRes2 ? context.LastResourceIndex2 : context.LastResourceIndex;

          if (resIndex >= 0 && resIndex < res.Count)
            type = res.GetAt(resIndex).ItemType;
        }

        m_CraftSystem.CreateItem(m_From, item.ItemType, type, m_Tool, item);
      }
    }

    public override void OnResponse(NetState sender, RelayInfo info)
    {
      if (info.ButtonID <= 0)
        return; // Canceled

      int buttonID = info.ButtonID - 1;
      int type = buttonID % 7;
      int index = buttonID / 7;

      CraftSystem system = m_CraftSystem;
      CraftGroupCol groups = system.CraftGroups;
      CraftContext context = system.GetContext(m_From);

      switch (type)
      {
        case 0: // Show group
        {
          if (context == null)
            break;

          if (index >= 0 && index < groups.Count)
          {
            context.LastGroupIndex = index;
            m_From.SendGump(new CraftGump(m_From, system, m_Tool, null));
          }

          break;
        }
        case 1: // Create item
        {
          if (context == null)
            break;

          int groupIndex = context.LastGroupIndex;

          if (groupIndex >= 0 && groupIndex < groups.Count)
          {
            CraftGroup group = groups.GetAt(groupIndex);

            if (index >= 0 && index < group.CraftItems.Count)
              CraftItem(group.CraftItems.GetAt(index));
          }

          break;
        }
        case 2: // Item details
        {
          if (context == null)
            break;

          int groupIndex = context.LastGroupIndex;

          if (groupIndex >= 0 && groupIndex < groups.Count)
          {
            CraftGroup group = groups.GetAt(groupIndex);

            if (index >= 0 && index < group.CraftItems.Count)
              m_From.SendGump(new CraftGumpItem(m_From, system, group.CraftItems.GetAt(index), m_Tool));
          }

          break;
        }
        case 3: // Create item (last 10)
        {
          if (context == null)
            break;

          List<CraftItem> lastTen = context.Items;

          if (index >= 0 && index < lastTen.Count)
            CraftItem(lastTen[index]);

          break;
        }
        case 4: // Item details (last 10)
        {
          if (context == null)
            break;

          List<CraftItem> lastTen = context.Items;

          if (index >= 0 && index < lastTen.Count)
            m_From.SendGump(new CraftGumpItem(m_From, system, lastTen[index], m_Tool));

          break;
        }
        case 5: // Resource selected
        {
          if (m_Page == CraftPage.PickResource && index >= 0 && index < system.CraftSubRes.Count)
          {
            CraftSubRes res = system.CraftSubRes.GetAt(index);

            if (m_From.Skills[system.MainSkill].Base < res.RequiredSkill)
            {
              m_From.SendGump(new CraftGump(m_From, system, m_Tool, res.Message));
            }
            else
            {
              if (context != null)
                context.LastResourceIndex = index;

              m_From.SendGump(new CraftGump(m_From, system, m_Tool, null));
            }
          }
          else if (m_Page == CraftPage.PickResource2 && index >= 0 && index < system.CraftSubRes2.Count)
          {
            CraftSubRes res = system.CraftSubRes2.GetAt(index);

            if (m_From.Skills[system.MainSkill].Base < res.RequiredSkill)
            {
              m_From.SendGump(new CraftGump(m_From, system, m_Tool, res.Message));
            }
            else
            {
              if (context != null)
                context.LastResourceIndex2 = index;

              m_From.SendGump(new CraftGump(m_From, system, m_Tool, null));
            }
          }

          break;
        }
        case 6: // Misc. buttons
        {
          switch (index)
          {
            case 0: // Resource selection
            {
              if (system.CraftSubRes.Init)
                m_From.SendGump(new CraftGump(m_From, system, m_Tool, null, CraftPage.PickResource));

              break;
            }
            case 1: // Smelt item
            {
              if (system.Resmelt)
                Resmelt.Do(m_From, system, m_Tool);

              break;
            }
            case 2: // Make last
            {
              if (context == null)
                break;

              CraftItem item = context.LastMade;

              if (item != null)
                CraftItem(item);
              else
                m_From.SendGump(new CraftGump(m_From, m_CraftSystem, m_Tool, 1044165,
                  m_Page)); // You haven't made anything yet.

              break;
            }
            case 3: // Last 10
            {
              if (context == null)
                break;

              context.LastGroupIndex = 501;
              m_From.SendGump(new CraftGump(m_From, system, m_Tool, null));

              break;
            }
            case 4: // Toggle use resource hue
            {
              if (context == null)
                break;

              context.DoNotColor = !context.DoNotColor;

              m_From.SendGump(new CraftGump(m_From, m_CraftSystem, m_Tool, null, m_Page));

              break;
            }
            case 5: // Repair item
            {
              if (system.Repair)
                Repair.Do(m_From, system, m_Tool);

              break;
            }
            case 6: // Toggle mark option
            {
              if (context == null || !system.MarkOption)
                break;

              switch (context.MarkOption)
              {
                case CraftMarkOption.MarkItem:
                  context.MarkOption = CraftMarkOption.DoNotMark;
                  break;
                case CraftMarkOption.DoNotMark:
                  context.MarkOption = CraftMarkOption.PromptForMark;
                  break;
                case CraftMarkOption.PromptForMark:
                  context.MarkOption = CraftMarkOption.MarkItem;
                  break;
              }

              m_From.SendGump(new CraftGump(m_From, m_CraftSystem, m_Tool, null, m_Page));

              break;
            }
            case 7: // Resource selection 2
            {
              if (system.CraftSubRes2.Init)
                m_From.SendGump(new CraftGump(m_From, system, m_Tool, null, CraftPage.PickResource2));

              break;
            }
            case 8: // Enhance item
            {
              if (system.CanEnhance)
                Enhance.BeginTarget(m_From, system, m_Tool);

              break;
            }
          }

          break;
        }
      }
    }

    public enum CraftPage
    {
      None,
      PickResource,
      PickResource2
    }
  }
}