using Gameboard.ShogiUI.Sockets.ServiceModels.Types;
using Gameboard.ShogiUI.Sockets.Utilities;
using System.Diagnostics;
using System.Numerics;

namespace Gameboard.ShogiUI.Sockets.Models
{
  [DebuggerDisplay("{From} - {To}")]
  public class Move
  {
    public Vector2? From { get; } // TODO: Use string notation
    public bool IsPromotion { get; }
    public WhichPiece? PieceFromHand { get; }
    public Vector2 To { get; }

    public Move(Vector2 from, Vector2 to, bool isPromotion = false)
    {
      From = from;
      To = to;
      IsPromotion = isPromotion;
    }
    public Move(WhichPiece pieceFromHand, Vector2 to)
    {
      PieceFromHand = pieceFromHand;
      To = to;
    }

    /// <summary>
    /// Constructor to represent moving a piece on the Board to another position on the Board.
    /// </summary>
    /// <param name="fromNotation">Position the piece is being moved from.</param>
    /// <param name="toNotation">Position the piece is being moved to.</param>
    /// <param name="isPromotion">If the moving piece should be promoted.</param>
    public Move(string fromNotation, string toNotation, bool isPromotion = false)
    {
      From = NotationHelper.FromBoardNotation(fromNotation);
      To = NotationHelper.FromBoardNotation(toNotation);
      IsPromotion = isPromotion;
    }

    /// <summary>
    /// Constructor to represent moving a piece from the Hand to the Board.
    /// </summary>
    /// <param name="pieceFromHand">The piece being moved from the Hand to the Board.</param>
    /// <param name="toNotation">Position the piece is being moved to.</param>
    /// <param name="isPromotion">If the moving piece should be promoted.</param>
    public Move(WhichPiece pieceFromHand, string toNotation, bool isPromotion = false)
    {
      From = null;
      PieceFromHand = pieceFromHand;
      To = NotationHelper.FromBoardNotation(toNotation);
      IsPromotion = isPromotion;
    }

    public ServiceModels.Types.Move ToServiceModel() => new()
    {
      From = From.HasValue ? NotationHelper.ToBoardNotation(From.Value) : null,
      IsPromotion = IsPromotion,
      PieceFromCaptured = PieceFromHand.HasValue ? PieceFromHand : null,
      To = NotationHelper.ToBoardNotation(To)
    };
  }
}