using DataProviders;
using DomainResults.Common;

using WeatherForecast.Models.Responses;

namespace WeatherForecast.Services {

  public interface IShopCartItemsService {
    (List<GetShopCartItemResponseModel>?, IDomainResult) Get(Guid siteId, Guid userId);
  }

  public class ShopCartItemsService : IShopCartItemsService {

    ILogger<ShopCartItemsService> _logger;
    IShopCartDataProvider _shopCartDataProvider;

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

    public (List<GetShopCartItemResponseModel>?, IDomainResult) Get(Guid siteId, Guid userId) {

      var (items, result) = _shopCartDataProvider.GetAll(siteId, userId);

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

      return IDomainResult.Success(items.Select(x => new GetShopCartItemResponseModel(x)).ToList());
    }
  }
}