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

using Gameboard.ShogiUI.Sockets.Models;
using Gameboard.ShogiUI.Sockets.ServiceModels.Socket.Messages;
using System.Threading.Tasks;

namespace Gameboard.ShogiUI.Sockets.Managers.ClientActionHandlers
{
  public interface ICreateGameHandler
  {
    Task Handle(CreateGameRequest request, string userName);
  }

  // TODO: This doesn't need to be a socket action.
  // It can be an API route and still tell socket connections about the new session.
  public class CreateGameHandler : ICreateGameHandler
  {
    private readonly IGameboardManager manager;
    private readonly ISocketConnectionManager connectionManager;

    public CreateGameHandler(
      ISocketConnectionManager communicationManager,
      IGameboardManager manager)
    {
      this.manager = manager;
      this.connectionManager = communicationManager;
    }

    public async Task Handle(CreateGameRequest request, string userName)
    {
      var model = new SessionMetadata(request.GameName, request.IsPrivate, userName, null);
      var success = await manager.CreateSession(model);

      if (!success)
      {
        var error = new CreateGameResponse(request.Action)
        {
          Error = "Unable to create game with this name."
        };
        await connectionManager.BroadcastToPlayers(error, userName);
      }

      var response = new CreateGameResponse(request.Action)
      {
        PlayerName = userName,
        Game = model.ToServiceModel()
      };

      var task = request.IsPrivate
        ? connectionManager.BroadcastToPlayers(response, userName)
        : connectionManager.BroadcastToAll(response);

      await task;
    }
  }
}