public App()
{
InitializeComponent();
MainPage = new ProductsPages();
}
public void ProductsInfo()
{
ProductsPages productsInfo = new ProductsPages();
int skip = (_pageNumber - 1) * _itemsPerPage;
int startPage;
if ((skip % 10) <= 2 && (skip % 10) != 0)
{
startPage = _pageNumber + 1;
}
else
{
startPage = _pageNumber;
}
int startItem = skip % 10;
///////////////////
for (int page = startPage; page <= 10; page++)
{
AmazonRequestHelper amazonRequestHelper = new AmazonRequestHelper();
string itemPage = Convert.ToString(page);
ItemSearchResponse itemSearchResponse = amazonRequestHelper.ItemSearch(itemPage, "Books", new string[] { "ItemAttributes", "Offers" }, _keywords);
int totalPages = Convert.ToInt32(itemSearchResponse.Items[0].TotalPages);
if (totalPages >= 10)
{
productsInfo.Pages = 10;
}
else
{
productsInfo.Pages = totalPages;
}
if (itemSearchResponse.Items[0].Item != null)
{
for (int i = startItem; i < itemSearchResponse.Items[0].Item.Length; i++)
{
if (_itemsPerPage > 0)
{
var item = itemSearchResponse.Items[0].Item[i];
Debug.WriteLine("{0}\t{1}\tpage:{2}\titem:{3}", item.ItemAttributes.Title, Convert.ToDecimal(item.OfferSummary.LowestNewPrice.Amount) / 100, page, i);
Product currentProduct = new Product()
{
Title = item.ItemAttributes.Title,
Price = Convert.ToDecimal(item.OfferSummary.LowestNewPrice.Amount) / 100
};
productsInfo.Products.Add(currentProduct);
_itemsPerPage--;
}
else
{
break;
}
}
startItem = 0;
Thread.Sleep(1000);
}
}
_productInfo = productsInfo;
}
public static ProductsPages ItemSearchRequestResult(string title, int webPage, int itemPerPage)
{
BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.Transport);
binding.MaxReceivedMessageSize = int.MaxValue;
binding.MaxBufferSize = int.MaxValue;
// create a WCF Amazon ECS client
AWSECommerceServicePortTypeClient client = new AWSECommerceServicePortTypeClient(
binding,
new EndpointAddress("https://webservices.amazon.com/onca/soap?Service=AWSECommerceService"));
// add authentication to the ECS client
client.ChannelFactory.Endpoint.Behaviors.Add(new AmazonSigningEndpointBehavior(accessKeyId, secretKey));
// prepare an ItemSearch request
ItemSearchRequest searchRequest = new ItemSearchRequest();
searchRequest.SearchIndex = "Books";
searchRequest.Title = title;
searchRequest.ResponseGroup = new string[] { "ItemAttributes", "Offers" };
ItemSearch itemSearch = new ItemSearch();
itemSearch.Request = new ItemSearchRequest[] { searchRequest };
itemSearch.AWSAccessKeyId = accessKeyId;
itemSearch.AssociateTag = "http://affiliate-program.amazon.com/";
int skip = (webPage - 1) * itemPerPage;
int startPage;
if ((skip % 10) <= 2 && (skip % 10) != 0)
{
startPage = webPage + 1;
}
else
{
startPage = webPage;
}
int startItem = skip % 10;
ProductsPages productPages = new ProductsPages();
for (int page = startPage; page <= 10; page++)
{
searchRequest.ItemPage = Convert.ToString(page);
ItemSearchResponse searchResponse = client.ItemSearch(itemSearch);
int totalPages = Convert.ToInt32(searchResponse.Items[0].TotalPages);
if (totalPages < 10)
{
productPages.Pages = totalPages;
}
else
{
productPages.Pages = 10;
}
if (searchResponse.Items[0].Item != null)
{
for (int i = startItem; i < searchResponse.Items[0].Item.Length; i++)
{
if (itemPerPage > 0)
{
var item = searchResponse.Items[0].Item[i];
Debug.WriteLine("{0}\t{1}\tpage:{2}\titem:{3}", item.ItemAttributes.Title, Convert.ToDecimal(item.OfferSummary.LowestNewPrice.Amount) / 100, page, i);
Product currentProduct = new Product()
{
Title = item.ItemAttributes.Title,
Price = Convert.ToDecimal(item.OfferSummary.LowestNewPrice.Amount) / 100
};
productPages.Products.Add(currentProduct);
itemPerPage--;
}
else
{
break;
}
}
startItem = 0;
Thread.Sleep(1000); //Amazon can ask requests only once per second
}
}
return(productPages);
}
