public Tuple <string, int> Fetch()
{
var result = new Tuple <string, int>(string.Empty, 0);
//获取需要更新商品的店铺：
var shop = ShopDataAccess.GetTopShop();
if (shop.IsNull())
{
return(new Tuple <string, int>(string.Empty, 0));
}
var fetcher = FetcherFactory.CreateFetcher(shop.ShopUrl);
var products = fetcher.GetProducts(shop.ShopUrl.Trim().Trim('/'));
if (products.Count > 8)
{
//删除原来的商品：
ProductDataAccess.DeleteProduct(shop.ID);
ProductDataAccess.InsertProducts(products, shop.ID);
ShopDataAccess.UpdateShopAsyncDate(shop.ID);
}
shop.FetchDate = DateTime.Now;
ShopDataAccess.UpdateFetchDate(shop.ID);
return(new Tuple <string, int>(string.Format("获取店铺：{0}完成，总过获取商品数量为：{1}个", shop.ShopName, products.Count / 2), shop.ID));
}
