ProjectGrid/Logic/TicTacTocManager.cs

using ProjectGrid.Models;
using System;
using System.Collections.Generic;

namespace ProjectGrid
{
  public interface ITicTacTocManager
  {
    public void Restart();
    public TicTacTocResponse NextMove(TicTacTocRequest move);

    public TicTacTocResponse GetBoard();
  }

  public class TicTacTocManager : ITicTacTocManager
  {
    private enum State
    {
      PLAYING,
      GAME_OVER
    }

    private State _state;

    //private ITicTacToctRepository _repo;

    private int _currentPlayer;

    private TicTacTocBoard _board;
    public TicTacTocBoard Board => _board;

    public int[] _playerScore = new int[] { 0, 0, 0 };

    public TicTacTocManager(/*ITicTacToctRepository repo*/)
    {
      //_repo = repo;
      _currentPlayer = 1;
      Restart();
    }

    public TicTacTocResponse NextMove(TicTacTocRequest move)
    {
      TicTacTocResponse response = new TicTacTocResponse();

      if (_state != State.GAME_OVER)
      {
        _board.SetFieldValue(_currentPlayer, move.Field);

        response.Winning = _board.ValueWon(_currentPlayer);
        if (_currentPlayer > 0 && response.Winning != null)
        {
          response.PlayerWon = _currentPlayer;
          _state = State.GAME_OVER;
          _playerScore[_currentPlayer]++;
        }

        // switch between 1 and 2
        _currentPlayer = 3 - _currentPlayer;
      }
      response.Board = _board.Field;
      response.PlayerScore = new List<int>(_playerScore);

      return response;
    }


    public void Restart()
    {
      _currentPlayer = new Random().Next(1, 2);
      _board = new TicTacTocBoard();
      _state = State.PLAYING;
    }


    public TicTacTocResponse GetBoard()
    {
      TicTacTocResponse response = new TicTacTocResponse();
      response.Board = _board.Field;
      return response;
    }
  }
}