using System;
using System.Collections.Generic;
using Server.Commands;
using Server.Factions;
using Server.Gumps;
using Server.Mobiles;
using Server.Network;
using Server.Spells;

namespace Server.Items
{
  public class PublicMoongate : Item
  {
    [Constructible]
    public PublicMoongate() : base(0xF6C)
    {
      Movable = false;
      Light = LightType.Circle300;
    }

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

    public override bool ForceShowProperties => ObjectPropertyList.Enabled;

    public override bool HandlesOnMovement => true;

    public override void OnDoubleClick(Mobile from)
    {
      if (!from.Player)
        return;

      if (from.InRange(GetWorldLocation(), 1))
        UseGate(from);
      else
        from.SendLocalizedMessage(500446); // That is too far away.
    }

    public override bool OnMoveOver(Mobile m)
    {
      // Changed so criminals are not blocked by it.
      if (m.Player)
        UseGate(m);

      return true;
    }

    public override void OnMovement(Mobile m, Point3D oldLocation)
    {
      if (m is PlayerMobile)
        if (!Utility.InRange(m.Location, Location, 1) && Utility.InRange(oldLocation, Location, 1))
          m.CloseGump<MoongateGump>();
    }

    public bool UseGate(Mobile m)
    {
      if (m.Criminal)
      {
        m.SendLocalizedMessage(1005561, "", 0x22); // Thou'rt a criminal and cannot escape so easily.
        return false;
      }

      if (SpellHelper.CheckCombat(m))
      {
        m.SendLocalizedMessage(1005564, "", 0x22); // Wouldst thou flee during the heat of battle??
        return false;
      }

      if (m.Spell != null)
      {
        m.SendLocalizedMessage(1049616); // You are too busy to do that at the moment.
        return false;
      }

      m.CloseGump<MoongateGump>();
      m.SendGump(new MoongateGump(m, this));

      if (!m.Hidden || m.AccessLevel == AccessLevel.Player)
        Effects.PlaySound(m.Location, m.Map, 0x20E);

      return true;
    }

    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();
    }

    public static void Initialize()
    {
      CommandSystem.Register("MoonGen", AccessLevel.Administrator, MoonGen_OnCommand);
    }

    [Usage("MoonGen")]
    [Description("Generates public moongates. Removes all old moongates.")]
    public static void MoonGen_OnCommand(CommandEventArgs e)
    {
      DeleteAll();

      int count = 0;

      count += MoonGen(PMList.Trammel);
      count += MoonGen(PMList.Felucca);
      count += MoonGen(PMList.Ilshenar);
      count += MoonGen(PMList.Malas);
      count += MoonGen(PMList.Tokuno);

      World.Broadcast(0x35, true, "{0} moongates generated.", count);
    }

    private static void DeleteAll()
    {
      List<Item> list = new List<Item>();

      foreach (Item item in World.Items.Values)
        if (item is PublicMoongate)
          list.Add(item);

      foreach (Item item in list)
        item.Delete();

      if (list.Count > 0)
        World.Broadcast(0x35, true, "{0} moongates removed.", list.Count);
    }

    private static int MoonGen(PMList list)
    {
      foreach (PMEntry entry in list.Entries)
      {
        Item item = new PublicMoongate();

        item.MoveToWorld(entry.Location, list.Map);

        if (entry.Number == 1060642) // Umbra
          item.Hue = 0x497;
      }

      return list.Entries.Length;
    }
  }

  public class PMEntry
  {
    public PMEntry(Point3D loc, int number)
    {
      Location = loc;
      Number = number;
    }

    public Point3D Location{ get; }

    public int Number{ get; }
  }

  public class PMList
  {
    public static readonly PMList Trammel =
      new PMList(1012000, 1012012, Map.Trammel, new[]
      {
        new PMEntry(new Point3D(4467, 1283, 5), 1012003), // Moonglow
        new PMEntry(new Point3D(1336, 1997, 5), 1012004), // Britain
        new PMEntry(new Point3D(1499, 3771, 5), 1012005), // Jhelom
        new PMEntry(new Point3D(771, 752, 5), 1012006), // Yew
        new PMEntry(new Point3D(2701, 692, 5), 1012007), // Minoc
        new PMEntry(new Point3D(1828, 2948, -20), 1012008), // Trinsic
        new PMEntry(new Point3D(643, 2067, 5), 1012009), // Skara Brae
        /* Dynamic Z for Magincia to support both old and new maps. */
        new PMEntry(new Point3D(3563, 2139, Map.Trammel.GetAverageZ(3563, 2139)), 1012010), // (New) Magincia
        new PMEntry(new Point3D(3450, 2677, 25), 1078098) // New Haven
      });

    public static readonly PMList Felucca =
      new PMList(1012001, 1012013, Map.Felucca, new[]
      {
        new PMEntry(new Point3D(4467, 1283, 5), 1012003), // Moonglow
        new PMEntry(new Point3D(1336, 1997, 5), 1012004), // Britain
        new PMEntry(new Point3D(1499, 3771, 5), 1012005), // Jhelom
        new PMEntry(new Point3D(771, 752, 5), 1012006), // Yew
        new PMEntry(new Point3D(2701, 692, 5), 1012007), // Minoc
        new PMEntry(new Point3D(1828, 2948, -20), 1012008), // Trinsic
        new PMEntry(new Point3D(643, 2067, 5), 1012009), // Skara Brae
        /* Dynamic Z for Magincia to support both old and new maps. */
        new PMEntry(new Point3D(3563, 2139, Map.Felucca.GetAverageZ(3563, 2139)), 1012010), // (New) Magincia
        new PMEntry(new Point3D(2711, 2234, 0), 1019001) // Buccaneer's Den
      });

    public static readonly PMList Ilshenar =
      new PMList(1012002, 1012014, Map.Ilshenar, new[]
      {
        new PMEntry(new Point3D(1215, 467, -13), 1012015), // Compassion
        new PMEntry(new Point3D(722, 1366, -60), 1012016), // Honesty
        new PMEntry(new Point3D(744, 724, -28), 1012017), // Honor
        new PMEntry(new Point3D(281, 1016, 0), 1012018), // Humility
        new PMEntry(new Point3D(987, 1011, -32), 1012019), // Justice
        new PMEntry(new Point3D(1174, 1286, -30), 1012020), // Sacrifice
        new PMEntry(new Point3D(1532, 1340, -3), 1012021), // Spirituality
        new PMEntry(new Point3D(528, 216, -45), 1012022), // Valor
        new PMEntry(new Point3D(1721, 218, 96), 1019000) // Chaos
      });

    public static readonly PMList Malas =
      new PMList(1060643, 1062039, Map.Malas, new[]
      {
        new PMEntry(new Point3D(1015, 527, -65), 1060641), // Luna
        new PMEntry(new Point3D(1997, 1386, -85), 1060642) // Umbra
      });

    public static readonly PMList Tokuno =
      new PMList(1063258, 1063415, Map.Tokuno, new[]
      {
        new PMEntry(new Point3D(1169, 998, 41), 1063412), // Isamu-Jima
        new PMEntry(new Point3D(802, 1204, 25), 1063413), // Makoto-Jima
        new PMEntry(new Point3D(270, 628, 15), 1063414) // Homare-Jima
      });

    public static readonly PMList[] UORLists = { Trammel, Felucca };
    public static readonly PMList[] UORListsYoung = { Trammel };
    public static readonly PMList[] LBRLists = { Trammel, Felucca, Ilshenar };
    public static readonly PMList[] LBRListsYoung = { Trammel, Ilshenar };
    public static readonly PMList[] AOSLists = { Trammel, Felucca, Ilshenar, Malas };
    public static readonly PMList[] AOSListsYoung = { Trammel, Ilshenar, Malas };
    public static readonly PMList[] SELists = { Trammel, Felucca, Ilshenar, Malas, Tokuno };
    public static readonly PMList[] SEListsYoung = { Trammel, Ilshenar, Malas, Tokuno };
    public static readonly PMList[] RedLists = { Felucca };
    public static readonly PMList[] SigilLists = { Felucca };

    public PMList(int number, int selNumber, Map map, PMEntry[] entries)
    {
      Number = number;
      SelNumber = selNumber;
      Map = map;
      Entries = entries;
    }

    public int Number{ get; }

    public int SelNumber{ get; }

    public Map Map{ get; }

    public PMEntry[] Entries{ get; }
  }

  public class MoongateGump : Gump
  {
    private PMList[] m_Lists;
    private Mobile m_Mobile;
    private Item m_Moongate;

    public MoongateGump(Mobile mobile, Item moongate) : base(100, 100)
    {
      m_Mobile = mobile;
      m_Moongate = moongate;

      PMList[] checkLists;

      if (mobile.Player)
      {
        if (Sigil.ExistsOn(mobile))
        {
          checkLists = PMList.SigilLists;
        }
        else if (mobile.Kills >= 5)
        {
          checkLists = PMList.RedLists;
        }
        else
        {
          ClientFlags flags = mobile.NetState?.Flags ?? ClientFlags.None;
          bool young = mobile is PlayerMobile playerMobile && playerMobile.Young;

          if (Core.SE && (flags & ClientFlags.Tokuno) != 0)
            checkLists = young ? PMList.SEListsYoung : PMList.SELists;
          else if (Core.AOS && (flags & ClientFlags.Malas) != 0)
            checkLists = young ? PMList.AOSListsYoung : PMList.AOSLists;
          else if ((flags & ClientFlags.Ilshenar) != 0)
            checkLists = young ? PMList.LBRListsYoung : PMList.LBRLists;
          else
            checkLists = young ? PMList.UORListsYoung : PMList.UORLists;
        }
      }
      else
      {
        checkLists = PMList.SELists;
      }

      m_Lists = new PMList[checkLists.Length];

      for (int i = 0; i < m_Lists.Length; ++i)
        m_Lists[i] = checkLists[i];

      for (int i = 0; i < m_Lists.Length; ++i)
        if (m_Lists[i].Map == mobile.Map)
        {
          PMList temp = m_Lists[i];

          m_Lists[i] = m_Lists[0];
          m_Lists[0] = temp;

          break;
        }

      AddPage(0);

      AddBackground(0, 0, 380, 280, 5054);

      AddButton(10, 210, 4005, 4007, 1);
      AddHtmlLocalized(45, 210, 140, 25, 1011036); // OKAY

      AddButton(10, 235, 4005, 4007, 0);
      AddHtmlLocalized(45, 235, 140, 25, 1011012); // CANCEL

      AddHtmlLocalized(5, 5, 200, 20, 1012011); // Pick your destination:

      for (int i = 0; i < checkLists.Length; ++i)
      {
        AddButton(10, 35 + i * 25, 2117, 2118, 0, GumpButtonType.Page, Array.IndexOf(m_Lists, checkLists[i]) + 1);
        AddHtmlLocalized(30, 35 + i * 25, 150, 20, checkLists[i].Number);
      }

      for (int i = 0; i < m_Lists.Length; ++i)
        RenderPage(i, Array.IndexOf(checkLists, m_Lists[i]));
    }

    private void RenderPage(int index, int offset)
    {
      PMList list = m_Lists[index];

      AddPage(index + 1);

      AddButton(10, 35 + offset * 25, 2117, 2118, 0, GumpButtonType.Page, index + 1);
      AddHtmlLocalized(30, 35 + offset * 25, 150, 20, list.SelNumber);

      PMEntry[] entries = list.Entries;

      for (int i = 0; i < entries.Length; ++i)
      {
        AddRadio(200, 35 + i * 25, 210, 211, false, index * 100 + i);
        AddHtmlLocalized(225, 35 + i * 25, 150, 20, entries[i].Number);
      }
    }

    public override void OnResponse(NetState state, RelayInfo info)
    {
      if (info.ButtonID == 0) // Cancel
        return;
      if (m_Mobile.Deleted || m_Moongate.Deleted || m_Mobile.Map == null)
        return;

      int[] switches = info.Switches;

      if (switches.Length == 0)
        return;

      int switchID = switches[0];
      int listIndex = switchID / 100;
      int listEntry = switchID % 100;

      if (listIndex < 0 || listIndex >= m_Lists.Length)
        return;

      PMList list = m_Lists[listIndex];

      if (listEntry < 0 || listEntry >= list.Entries.Length)
        return;

      PMEntry entry = list.Entries[listEntry];

      if (!m_Mobile.InRange(m_Moongate.GetWorldLocation(), 1) || m_Mobile.Map != m_Moongate.Map)
      {
        m_Mobile.SendLocalizedMessage(1019002); // You are too far away to use the gate.
      }
      else if (m_Mobile.Player && m_Mobile.Kills >= 5 && list.Map != Map.Felucca)
      {
        m_Mobile.SendLocalizedMessage(1019004); // You are not allowed to travel there.
      }
      else if (Sigil.ExistsOn(m_Mobile) && list.Map != Faction.Facet)
      {
        m_Mobile.SendLocalizedMessage(1019004); // You are not allowed to travel there.
      }
      else if (m_Mobile.Criminal)
      {
        m_Mobile.SendLocalizedMessage(1005561, "", 0x22); // Thou'rt a criminal and cannot escape so easily.
      }
      else if (SpellHelper.CheckCombat(m_Mobile))
      {
        m_Mobile.SendLocalizedMessage(1005564, "", 0x22); // Wouldst thou flee during the heat of battle??
      }
      else if (m_Mobile.Spell != null)
      {
        m_Mobile.SendLocalizedMessage(1049616); // You are too busy to do that at the moment.
      }
      else if (m_Mobile.Map == list.Map && m_Mobile.InRange(entry.Location, 1))
      {
        m_Mobile.SendLocalizedMessage(1019003); // You are already there.
      }
      else
      {
        BaseCreature.TeleportPets(m_Mobile, entry.Location, list.Map);

        m_Mobile.Combatant = null;
        m_Mobile.Warmode = false;
        m_Mobile.Hidden = true;

        m_Mobile.MoveToWorld(entry.Location, list.Map);

        Effects.PlaySound(entry.Location, list.Map, 0x1FE);
      }
    }
  }
}