private static string GetOutputString(Product targetProduct, AmazonWSHelper helper, AWSECommerceService ecs, Item item)
{
using (StringWriter writer = new StringWriter()) {
foreach (Offer o in item.Offers.Offer) {
string[] listPrices, salePrices;
string[] prices = GetPrices(item, o, helper, ecs, out listPrices, out salePrices);
writer.WriteLine(GetOfferString(item, o, listPrices, salePrices));
writer.WriteLine("");
}
return writer.ToString();
}
}
public ItemLookupResponse GetItemLookupResponse(AWSECommerceService ecs, string[] itemASINs)
{
ItemLookup lookup = new ItemLookup();
lookup.AssociateTag = AssociateTag;
lookup.AWSAccessKeyId = AWSAccessKeyId;
//lookup.Version = "2008-08-19";
ItemLookupRequest request = new ItemLookupRequest();
request.ItemId = itemASINs;
request.MerchantId = "Featured";
request.ResponseGroup = new string[] {"Medium", "OfferFull", "ShippingCharges"};
lookup.Request = new ItemLookupRequest[] {request};
ItemLookupResponse response = ecs.ItemLookup(lookup);
CheckRequestError(response.OperationRequest);
return response;
}
private static string GetMerchantAndPriceSpecificOutputString(Product targetProduct, AmazonWSHelper helper, AWSECommerceService ecs, Item item)
{
using (StringWriter writer = new StringWriter()) {
foreach (Offer o in item.Offers.Offer) {
if (targetProduct.MerchantId == o.Merchant.MerchantId) {
string[] listPrices, salePrices;
string[] prices = GetPrices(item, o, helper, ecs, out listPrices, out salePrices);
if (Int64.Parse(targetProduct.Price) > Int64.Parse(prices[0])) {
writer.WriteLine(GetOfferString(item, o, listPrices, salePrices));
}
writer.WriteLine("");
}
}
return writer.ToString();
}
}
public string[] GetPriceTupleFromCart(AWSECommerceService ecs, Item item, OfferListing offerListing)
{
Cart cart = null;
string cartInfo = ReadCartInfo();
if (string.IsNullOrEmpty(cartInfo)) {
CartCreateResponse response = ecs.CartCreate(GetCartCreate(item, offerListing));
CheckRequestError(response.OperationRequest);
cart = response.Cart[0];
WriteCartInfo(cart);
} else {
CartAddResponse response = ecs.CartAdd(GetCartAdd(cartInfo, item, offerListing));
CheckRequestError(response.OperationRequest);
cart = response.Cart[0];
}
string[] prices = new string[2];
prices[0] = cart.SubTotal.Amount;
prices[1] = cart.SubTotal.FormattedPrice;
CartClearResponse clearResponse = ecs.CartClear(GetCartClear(cart));
CheckRequestError(clearResponse.OperationRequest);
return prices;
}
private static string[] GetPrices(Item item, Offer o, AmazonWSHelper helper, AWSECommerceService ecs, out string[] listPrices, out string[] salePrices)
{
string[] prices = o.OfferListing[0].Price.FormattedPrice == "Too low to display"
?
helper.GetPriceTupleFromCart(ecs, item, o.OfferListing[0])
:
new string[] {o.OfferListing[0].Price.Amount, o.OfferListing[0].Price.FormattedPrice};
listPrices = new string[2];
salePrices = null;
prices.CopyTo(listPrices, 0);
if (o.OfferListing[0].SalePrice != null) {
salePrices = new string[2];
prices = o.OfferListing[0].SalePrice.FormattedPrice == "Too low to display"
?
helper.GetPriceTupleFromCart(ecs, item, o.OfferListing[0])
:
new string[] {o.OfferListing[0].SalePrice.Amount, o.OfferListing[0].SalePrice.FormattedPrice};
prices.CopyTo(salePrices, 0);
}
return prices;
}
private static void ProcessAlert(AlertTarget target)
{
Console.WriteLine(target.Email);
Console.WriteLine("");
AWSECommerceService ecs = new AWSECommerceService();
AmazonWSHelper helper = new AmazonWSHelper();
try {
ItemLookupResponse response = helper.GetItemLookupResponse(ecs, target.GetProductASINs());
using (StringWriter writer = new StringWriter()) {
foreach (Items i in response.Items) {
foreach (Item item in i.Item) {
writer.WriteLine("Product: " + item.ItemAttributes.Title);
writer.WriteLine("Product Url: " + item.DetailPageURL);
writer.WriteLine("");
Product targetProduct = target.ProductList[item.ASIN];
if (!string.IsNullOrEmpty(targetProduct.MerchantId) && !string.IsNullOrEmpty(targetProduct.Price)) {
//List offer that's below specific price for a specific merchant
writer.WriteLine(GetMerchantAndPriceSpecificOutputString(targetProduct, helper, ecs, item));
} else if (!string.IsNullOrEmpty(targetProduct.MerchantId)) {
//List all the offers for a specific merchant
writer.WriteLine(GetMerchantSpecificOutputString(targetProduct, helper, ecs, item));
} else if (!string.IsNullOrEmpty(targetProduct.Price)) {
//List all the offers below a specific price
writer.WriteLine(GetPriceSpecificOutputString(targetProduct, helper, ecs, item));
} else {
//List all the available prices
writer.WriteLine(GetOutputString(targetProduct, helper, ecs, item));
}
}
}
Console.WriteLine(writer.ToString());
}
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
}
public string GetPriceFromCart(AWSECommerceService ecs, Item item, OfferListing offerListing)
{
string[] prices = GetPriceTupleFromCart(ecs, item, offerListing);
return prices[0];
}