using Gameboard.ShogiUI.Sockets.Models;
using Microsoft.FSharp.Core;
using ShogiApi = Gameboard.Shogi.Api.ServiceModels.Types;

namespace Gameboard.ShogiUI.Sockets.Managers.Utility
{
  public static class Mapper
  {
    public static ShogiApi.Move Map(Move source)
    {
      var from = source.From;
      var to = source.To;
      FSharpOption<ShogiApi.WhichPieceName> pieceFromCaptured = source.PieceFromCaptured switch
      {
        "B" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.Bishop),
        "G" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.GoldenGeneral),
        "K" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.King),
        "k" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.Knight),
        "L" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.Lance),
        "P" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.Pawn),
        "R" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.Rook),
        "S" => new FSharpOption<ShogiApi.WhichPieceName>(ShogiApi.WhichPieceName.SilverGeneral),
        _ => null
      };
      var target = new ShogiApi.Move
      {
        Origin = new ShogiApi.BoardLocation { X = from.X, Y = from.Y },
        Destination = new ShogiApi.BoardLocation { X = to.X, Y = to.Y },
        IsPromotion = source.IsPromotion,
        PieceFromCaptured = pieceFromCaptured
      };
      return target;
    }

    public static Move Map(ShogiApi.Move source)
    {
      var origin = source.Origin;
      var destination = source.Destination;
      string pieceFromCaptured = null;
      if (source.PieceFromCaptured != null)
      {
        pieceFromCaptured = source.PieceFromCaptured.Value switch
        {
          ShogiApi.WhichPieceName.Bishop => "B",
          ShogiApi.WhichPieceName.GoldenGeneral => "G",
          ShogiApi.WhichPieceName.King => "K",
          ShogiApi.WhichPieceName.Knight => "k",
          ShogiApi.WhichPieceName.Lance => "L",
          ShogiApi.WhichPieceName.Pawn => "P",
          ShogiApi.WhichPieceName.Rook => "R",
          ShogiApi.WhichPieceName.SilverGeneral => "S",
          _ => ""
        };
      }

      var target = new Move
      {
        From = new Coords(origin.X, origin.Y),
        To = new Coords(destination.X, destination.Y),
        IsPromotion = source.IsPromotion,
        PieceFromCaptured = pieceFromCaptured
      };

      return target;
    }
  }
}