using System;
using Server.Targeting;

namespace Server.Items
{
  [Flippable(0xF52, 0xF51)]
  public class ThrowingDagger : Item
  {
    [Constructible]
    public ThrowingDagger() : base(0xF52)
    {
      Weight = 1.0;
      Layer = Layer.OneHanded;
    }

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

    public override string DefaultName => "a throwing dagger";

    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 override void OnDoubleClick(Mobile from)
    {
      if (from.Items.Contains(this))
      {
        InternalTarget t = new InternalTarget(this);
        from.Target = t;
      }
      else
      {
        from.SendMessage("You must be holding that weapon to use it.");
      }
    }

    private class InternalTarget : Target
    {
      private ThrowingDagger m_Dagger;

      public InternalTarget(ThrowingDagger dagger) : base(10, false, TargetFlags.Harmful)
      {
        m_Dagger = dagger;
      }

      protected override void OnTarget(Mobile from, object targeted)
      {
        if (m_Dagger.Deleted) return;

        if (!from.Items.Contains(m_Dagger))
          from.SendMessage("You must be holding that weapon to use it.");
        else if (targeted is Mobile m)
          if (m != from && from.HarmfulCheck(m))
          {
            Direction to = from.GetDirectionTo(m);

            from.Direction = to;

            from.Animate(from.Mounted ? 26 : 9, 7, 1, true, false, 0);

            if (Utility.RandomDouble() >= Math.Sqrt(m.Dex / 100.0) * 0.8)
            {
              from.MovingEffect(m, 0x1BFE, 7, 1, false, false, 0x481, 0);

              AOS.Damage(m, from, Utility.Random(5, from.Str / 10), 100, 0, 0, 0, 0);

              m_Dagger.MoveToWorld(m.Location, m.Map);
            }
            else
            {
              int x = 0, y = 0;

              switch (to & Direction.Mask)
              {
                case Direction.North:
                  --y;
                  break;
                case Direction.South:
                  ++y;
                  break;
                case Direction.West:
                  --x;
                  break;
                case Direction.East:
                  ++x;
                  break;
                case Direction.Up:
                  --x;
                  --y;
                  break;
                case Direction.Down:
                  ++x;
                  ++y;
                  break;
                case Direction.Left:
                  --x;
                  ++y;
                  break;
                case Direction.Right:
                  ++x;
                  --y;
                  break;
              }

              x += Utility.Random(-1, 3);
              y += Utility.Random(-1, 3);

              x += m.X;
              y += m.Y;

              m_Dagger.MoveToWorld(new Point3D(x, y, m.Z), m.Map);

              from.MovingEffect(m_Dagger, 0x1BFE, 7, 1, false, false, 0x481, 0);

              from.SendMessage("You miss.");
            }
          }
      }
    }
  }
}