/// <summary>
/// Builder order info and calculator price
/// </summary>
/// <param name="buyInfoInput"></param>
public Tuple <ServiceResult, MerchantCartOutput> BuyInfo(MerchantBuyInfoInput buyInfo)
{
//user
var result = new MerchantCartOutput();
var user = Resolve <IUserService>().GetSingle(buyInfo.UserId);
if (user == null || user.Status != Status.Normal)
{
return(Tuple.Create(ServiceResult.Failure("您的输入的账户不存在，或者状态不正常"), result));
}
//get merchant store
//var merchantStore = Resolve<IMerchantStoreService>().GetSingle(s => s.Id == buyInfo.MerchantStoreId.ToObjectId());
//if (merchantStore == null)
//{
// return Tuple.Create(ServiceResult.Failure("当前店铺不存在"), result);
//}
//get cart from database
var cartIds = buyInfo.ProductItems.Select(c => c.Id.ToObjectId()).ToList();
var carts = Resolve <IMerchantCartService>().GetCart(cartIds);
if (carts.Count <= 0)
{
return(Tuple.Create(ServiceResult.Failure("购物车为空"), result));
}
return(CountPrice(carts));
}
/// <summary>
/// Calculator price
/// </summary>
/// <param name="cartProducts"></param>
/// <returns></returns>
public Tuple <ServiceResult, MerchantCartOutput> CountPrice(List <MerchantCartViewModel> cartProducts)
{
//check
var output = new MerchantCartOutput();
if (cartProducts.Count <= 0)
{
return(Tuple.Create(ServiceResult.Failure("购物车数据异常"), output));
}
//product
var result = ServiceResult.Success;
var productService = Resolve <IMerchantProductService>();
foreach (var cart in cartProducts)
{
if (cart.Count <= 0)
{
result = ServiceResult.Failure($"商品:{cart.ProductName}，商品数据异常");
break;
}
var product = productService.GetSingle(p => p.Id == cart.MerchantProductId.ToObjectId());
if (product == null)
{
result = ServiceResult.Failure($"商品:{cart.ProductName}，不存在");
break;
}
//stock
var sku = product.Skus?.Find(s => s.SkuId == cart.SkuId);
if (sku == null)
{
result = ServiceResult.Failure($"商品:{cart.ProductName}，Sku不存在");
break;
}
if (cart.Count > sku.Stock)
{
result = ServiceResult.Failure($"商品:{cart.ProductName}，Sku:{sku.Name}，购买数量大于商品库存数量");
break;
}
cart.ThumbnailUrl = Resolve <IApiService>().ApiImageUrl(product.ThumbnailUrl);
cart.ProductAmount = sku.Price * cart.Count;
output.TotalCount += cart.Count;
output.TotalAmount += cart.ProductAmount;
output.Products.Add(cart);
}
return(Tuple.Create(result, output));
}
