Shogi/Gameboard.ShogiUI.Sockets/Managers/ClientActionHandlers/MoveHandler.cs

using Gameboard.Shogi.Api.ServiceModels.Messages;
using Gameboard.ShogiUI.Sockets.Extensions;
using Gameboard.ShogiUI.Sockets.Managers.Utility;
using Gameboard.ShogiUI.Sockets.Repositories;
using Service = Gameboard.ShogiUI.Sockets.ServiceModels.Socket;
using Newtonsoft.Json;
using System.Net.WebSockets;
using System.Threading.Tasks;
using Gameboard.ShogiUI.Sockets.Models;

namespace Gameboard.ShogiUI.Sockets.Managers.ClientActionHandlers
{
  public class MoveHandler : IActionHandler
  {
    private readonly IGameboardRepository gameboardRepository;
    private readonly ISocketCommunicationManager communicationManager;
    public MoveHandler(
      ISocketCommunicationManager communicationManager,
      IGameboardRepository gameboardRepository)
    {
      this.gameboardRepository = gameboardRepository;
      this.communicationManager = communicationManager;
    }

    public async Task Handle(WebSocket socket, string json, string userName)
    {
      var request = JsonConvert.DeserializeObject<Service.Messages.MoveRequest>(json);
      // Basic move validation
      if (request.Move.To.Equals(request.Move.From))
      {
        var serialized = JsonConvert.SerializeObject(
            new Service.Messages.ErrorResponse(Service.Types.ClientAction.Move)
            {
              Error = "Error: moving piece from tile to the same tile."
            });
        await socket.SendTextAsync(serialized);
        return;
      }

      var moveModel = new Move(request.Move);
      var session = (await gameboardRepository.GetGame(request.GameName)).Session;
      await gameboardRepository.PostMove(request.GameName, new PostMove(Mapper.Map(moveModel)));

      var response = new Service.Messages.MoveResponse(Service.Types.ClientAction.Move)
      {
        GameName = request.GameName,
        PlayerName = userName,
        Move = moveModel.ToServiceModel()
      };
      await communicationManager.BroadcastToGame(session.Name, response);
    }
  }
}