using DataProviders;
using DomainResults.Common;

using WeatherForecast.Models.Requests;
using WeatherForecast.Models.Responses;

namespace WeatherForecast.Services {

  public interface IShopCartService {
    (GetShopCartResponseModel?, IDomainResult) GetShopCart(Guid siteId, Guid userId);
    (Guid?, IDomainResult) UpdateShopCart(Guid siteId, Guid userId, Guid shopCartId, PutShopCatalogRequestModel requestData);
  }

  public class ShopCartService : IShopCartService {

    ILogger<ShopCartService> _logger;
    IShopCartDataProvider _shopCartDataProvider;

    public ShopCartService(
      ILogger<ShopCartService> logger,
      IShopCartDataProvider shopCartDataprovider
    ) {
      _logger = logger;
      _shopCartDataProvider = shopCartDataprovider;
    }

    public (GetShopCartResponseModel?, IDomainResult) GetShopCart(Guid siteId, Guid userId) {
      var (items, result) = _shopCartDataProvider.Get(siteId, userId);

      if (!result.IsSuccess || items == null)
        return (null, result);

      return IDomainResult.Success(new GetShopCartResponseModel(items));
    }

    public (Guid?, IDomainResult) UpdateShopCart(Guid siteId, Guid userId, Guid shopCartId, PutShopCatalogRequestModel requestData) {
      var shopCart = requestData.ToDomainObject();

      shopCart.Id = shopCartId;
      shopCart.SiteId = siteId;
      shopCart.UserId = userId;

      return IDomainResult.Failed<Guid?>();
    }
  }
}