using System;
using System.Linq;

namespace Gameboard.ShogiUI.Sockets.Repositories.CouchModels
{
  public class BoardState : CouchDocument
  {
    public string Name { get; set; }
    public Piece?[,] Board { get; set; }
    public Piece[] Player1Hand { get; set; }
    public Piece[] Player2Hand { get; set; }
    /// <summary>
    /// Move is null for first BoardState of a session - before anybody has made moves.
    /// </summary>
    public Move? Move { get; set; }

    /// <summary>
    /// Default constructor and setters are for deserialization.
    /// </summary>
    public BoardState() : base()
    {
      Name = string.Empty;
      Board = new Piece[9, 9];
      Player1Hand = Array.Empty<Piece>();
      Player2Hand = Array.Empty<Piece>();
    }

    public BoardState(string sessionName, Models.BoardState boardState) : base($"{sessionName}-{DateTime.Now:O}", nameof(BoardState))
    {
      Name = sessionName;
      Board = new Piece[9, 9];

      for (var x = 0; x < 9; x++)
        for (var y = 0; y < 9; y++)
        {
          var piece = boardState.Board[x, y];
          if (piece != null)
          {
            Board[x, y] = new Piece(piece);
          }
        }

      Player1Hand = boardState.Player1Hand.Select(model => new Piece(model)).ToArray();
      Player2Hand = boardState.Player2Hand.Select(model => new Piece(model)).ToArray();
      if (boardState.Move != null)
      {
        Move = new Move(boardState.Move);
      }
    }

    public Models.BoardState ToDomainModel()
    {
      /*
       * Board = new Piece[9, 9];
      for (var x = 0; x < 9; x++)
        for (var y = 0; y < 9; y++)
        {
          var piece = boardState.Board[x, y];
          if (piece != null)
          {
            Board[x, y] = new Piece(piece);
          }
        }

      Player1Hand = boardState.Player1Hand.Select(_ => new Piece(_)).ToList();
      Player2Hand = boardState.Player2Hand.Select(_ => new Piece(_)).ToList();
      if (boardState.Move != null)
      {
        Move = new Move(boardState.Move);
      }
      */
      return null;
    }
  }
}