using AspShogiSockets.Extensions;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System.Linq;
using System.Net.WebSockets;
using System.Threading.Tasks;
using Websockets.Managers.Utility;
using Websockets.Repositories;
using Websockets.ServiceModels.Messages;
using Websockets.ServiceModels.Types;

namespace Websockets.Managers.ClientActionHandlers
{
  public class LoadGameHandler : IActionHandler
  {
    private readonly ILogger<LoadGameHandler> logger;
    private readonly IGameboardRepository gameboardRepository;
    private readonly ISocketCommunicationManager communicationManager;

    public LoadGameHandler(
      ILogger<LoadGameHandler> logger,
      ISocketCommunicationManager communicationManager,
      IGameboardRepository gameboardRepository)
    {
      this.logger = logger;
      this.gameboardRepository = gameboardRepository;
      this.communicationManager = communicationManager;
    }

    public async Task Handle(WebSocket socket, string json, string userName)
    {
      logger.LogInformation("Socket Request \n{0}\n", json);
      var request = JsonConvert.DeserializeObject<LoadGameRequest>(json);
      var response = new LoadGameResponse(ClientAction.LoadGame);
      var getGameResponse = await gameboardRepository.GetGame(request.GameName);
      var getMovesResponse = await gameboardRepository.GetMoves(request.GameName);

      if (getGameResponse == null || getMovesResponse == null)
      {
        response.Error = $"Could not find game.";
      }
      else
      {
        var session = getGameResponse.Session;
        var players = new[] { session.Player1, session.Player2 }
              .Where(p => !string.IsNullOrWhiteSpace(p))
              .ToArray();
        response.Game = new Game { GameName = session.Name, Players = players };

        response.Moves = userName.Equals(session.Player1)
            ? getMovesResponse.Moves.Select(_ => Mapper.Map(_))
            : getMovesResponse.Moves.Select(_ => Move.ConvertPerspective(Mapper.Map(_)));

        communicationManager.SubscribeToGame(socket, session.Name, userName);
      }

      var serialized = JsonConvert.SerializeObject(response);
      logger.LogInformation("Socket Response \n{0}\n", serialized);
      await socket.SendTextAsync(serialized);
    }
  }
}