using System;
using Server.Mobiles;
using Server.Multis;
using Server.Spells;
using Server.Targeting;

namespace Server.Items
{
  public class SpecialFishingNet : Item
  {
    private static int[] m_Hues =
    {
      0x09B,
      0x0CD,
      0x0D3,
      0x14D,
      0x1DD,
      0x1E9,
      0x1F4,
      0x373,
      0x451,
      0x47F,
      0x489,
      0x492,
      0x4B5,
      0x8AA
    };

    private static int[] m_WaterTiles =
    {
      0x00A8, 0x00AB,
      0x0136, 0x0137
    };

    private static int[] m_UndeepWaterTiles =
    {
      0x1797, 0x179C
    };

    [Constructible]
    public SpecialFishingNet() : base(0x0DCA)
    {
      Weight = 1.0;

      if (0.01 > Utility.RandomDouble())
        Hue = Utility.RandomList(m_Hues);
      else
        Hue = 0x8A0;
    }

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

    public override int LabelNumber => 1041079; // a special fishing net

    [CommandProperty(AccessLevel.GameMaster)]
    public bool InUse{ get; set; }

    public virtual bool RequireDeepWater => true;

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

      AddNetProperties(list);
    }

    protected virtual void AddNetProperties(ObjectPropertyList list)
    {
      // as if the name wasn't enough..
      list.Add(1017410); // Special Fishing Net
    }

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

      writer.Write(1); // version

      writer.Write(InUse);
    }

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

      int version = reader.ReadInt();

      switch (version)
      {
        case 1:
        {
          InUse = reader.ReadBool();

          if (InUse)
            Delete();

          break;
        }
      }

      Stackable = false;
    }

    public override void OnDoubleClick(Mobile from)
    {
      if (InUse)
      {
        from.SendLocalizedMessage(1010483); // Someone is already using that net!
      }
      else if (IsChildOf(from.Backpack))
      {
        from.SendLocalizedMessage(1010484); // Where do you wish to use the net?
        from.BeginTarget(-1, true, TargetFlags.None, OnTarget);
      }
      else
      {
        from.SendLocalizedMessage(1042001); // That must be in your pack for you to use it.
      }
    }

    public void OnTarget(Mobile from, object obj)
    {
      if (Deleted || InUse)
        return;

      if (!(obj is IPoint3D p3D))
        return;

      Map map = from.Map;

      if (map == null || map == Map.Internal)
        return;

      int x = p3D.X, y = p3D.Y, z = map.GetAverageZ(x, y); // OSI just takes the targeted Z

      if (!from.InRange(p3D, 6))
      {
        from.SendLocalizedMessage(500976); // You need to be closer to the water to fish!
      }
      else if (!from.InLOS(obj))
      {
        from.SendLocalizedMessage(500979); // You cannot see that location.
      }
      else if (RequireDeepWater
        ? FullValidation(map, x, y)
        : ValidateDeepWater(map, x, y) || ValidateUndeepWater(map, obj, ref z))
      {
        Point3D p = new Point3D(x, y, z);

        if (GetType() == typeof(SpecialFishingNet))
          for (int i = 1; i < Amount; ++i) // these were stackable before, doh
            from.AddToBackpack(new SpecialFishingNet());

        InUse = true;
        Movable = false;
        MoveToWorld(p, map);

        SpellHelper.Turn(from, p);
        from.Animate(12, 5, 1, true, false, 0);

        Effects.SendLocationEffect(p, map, 0x352D, 16, 4);
        Effects.PlaySound(p, map, 0x364);

        int index = 0;

        Timer.DelayCall(TimeSpan.FromSeconds(1.0), TimeSpan.FromSeconds(1.25), 14,
          () => DoEffect(from, p, index++));

        from.SendLocalizedMessage(RequireDeepWater
          ? 1010487
          : 1074492); // You plunge the net into the sea... / You plunge the net into the water...
      }
      else
      {
        from.SendLocalizedMessage(RequireDeepWater
          ? 1010485
          : 1074491); // You can only use this net in deep water! / You can only use this net in water!
      }
    }

    private void DoEffect(Mobile from, Point3D p, int index)
    {
      if (Deleted)
        return;

      if (index == 1)
      {
        Effects.SendLocationEffect(p, Map, 0x352D, 16, 4);
        Effects.PlaySound(p, Map, 0x364);
      }
      else if (index <= 7 || index == 14)
      {
        if (RequireDeepWater)
          for (int i = 0; i < 3; ++i)
          {
            int x, y;

            switch (Utility.Random(8))
            {
              default:
              case 0:
                x = -1;
                y = -1;
                break;
              case 1:
                x = -1;
                y = 0;
                break;
              case 2:
                x = -1;
                y = +1;
                break;
              case 3:
                x = 0;
                y = -1;
                break;
              case 4:
                x = 0;
                y = +1;
                break;
              case 5:
                x = +1;
                y = -1;
                break;
              case 6:
                x = +1;
                y = 0;
                break;
              case 7:
                x = +1;
                y = +1;
                break;
            }

            Effects.SendLocationEffect(new Point3D(p.X + x, p.Y + y, p.Z), Map, 0x352D, 16, 4);
          }
        else
          Effects.SendLocationEffect(p, Map, 0x352D, 16, 4);

        if (Utility.RandomBool())
          Effects.PlaySound(p, Map, 0x364);

        if (index == 14)
          FinishEffect(p, Map, from);
        else
          Z -= 1;
      }
    }

    protected virtual int GetSpawnCount()
    {
      int count = Utility.RandomMinMax(1, 3);

      if (Hue != 0x8A0)
        count += Utility.RandomMinMax(1, 2);

      return count;
    }

    protected void Spawn(Point3D p, Map map, BaseCreature spawn)
    {
      if (map == null)
      {
        spawn.Delete();
        return;
      }

      int x = p.X, y = p.Y;

      for (int j = 0; j < 20; ++j)
      {
        int tx = p.X - 2 + Utility.Random(5);
        int ty = p.Y - 2 + Utility.Random(5);

        LandTile t = map.Tiles.GetLandTile(tx, ty);

        if (t.Z == p.Z && (t.ID >= 0xA8 && t.ID <= 0xAB || t.ID >= 0x136 && t.ID <= 0x137) &&
            !SpellHelper.CheckMulti(new Point3D(tx, ty, p.Z), map))
        {
          x = tx;
          y = ty;
          break;
        }
      }

      spawn.MoveToWorld(new Point3D(x, y, p.Z), map);

      if (spawn is Kraken && 0.2 > Utility.RandomDouble())
        spawn.PackItem(new MessageInABottle(map == Map.Felucca ? Map.Felucca : Map.Trammel));
    }

    protected virtual void FinishEffect(Point3D p, Map map, Mobile from)
    {
      from.RevealingAction();

      int count = GetSpawnCount();

      for (int i = 0; map != null && i < count; ++i)
      {
        BaseCreature spawn;

        switch (Utility.Random(4))
        {
          default:
          case 0:
            spawn = new SeaSerpent();
            break;
          case 1:
            spawn = new DeepSeaSerpent();
            break;
          case 2:
            spawn = new WaterElemental();
            break;
          case 3:
            spawn = new Kraken();
            break;
        }

        Spawn(p, map, spawn);

        spawn.Combatant = from;
      }

      Delete();
    }

    public static bool FullValidation(Map map, int x, int y)
    {
      bool valid = ValidateDeepWater(map, x, y);

      for (int j = 1, offset = 5; valid && j <= 5; ++j, offset += 5)
        if (!ValidateDeepWater(map, x + offset, y + offset))
          valid = false;
        else if (!ValidateDeepWater(map, x + offset, y - offset))
          valid = false;
        else if (!ValidateDeepWater(map, x - offset, y + offset))
          valid = false;
        else if (!ValidateDeepWater(map, x - offset, y - offset))
          valid = false;

      return valid;
    }

    private static bool ValidateDeepWater(Map map, int x, int y)
    {
      int tileID = map.Tiles.GetLandTile(x, y).ID;
      bool water = false;

      for (int i = 0; !water && i < m_WaterTiles.Length; i += 2)
        water = tileID >= m_WaterTiles[i] && tileID <= m_WaterTiles[i + 1];

      return water;
    }

    private static bool ValidateUndeepWater(Map map, object obj, ref int z)
    {
      if (!(obj is StaticTarget))
        return false;

      StaticTarget target = (StaticTarget)obj;

      if (BaseHouse.FindHouseAt(target.Location, map, 0) != null)
        return false;

      int itemID = target.ItemID;

      for (int i = 0; i < m_UndeepWaterTiles.Length; i += 2)
        if (itemID >= m_UndeepWaterTiles[i] && itemID <= m_UndeepWaterTiles[i + 1])
        {
          z = target.Z;
          return true;
        }

      return false;
    }
  }

  public class FabledFishingNet : SpecialFishingNet
  {
    [Constructible]
    public FabledFishingNet()
    {
      Hue = 0x481;
    }

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

    public override int LabelNumber => 1063451; // a fabled fishing net

    protected override void AddNetProperties(ObjectPropertyList list)
    {
    }

    protected override int GetSpawnCount()
    {
      return base.GetSpawnCount() + 4;
    }

    protected override void FinishEffect(Point3D p, Map map, Mobile from)
    {
      Spawn(p, map, new Leviathan(from));

      base.FinishEffect(p, map, from);
    }

    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();
    }
  }
}