public async Task ObserveAsync(string productName, string productUrl)
{
try
{
ISiteParser parser = _parserFactory.GetInstance(productUrl);
ProductPriceFetchResult price = parser.Parse(productName, productUrl);
if (price.Price <= 0)
{
throw new Exception("Price is negative or zero");
}
await _priceStore.StoreAsync(price);
}
catch (Exception e)
{
var id = Guid.NewGuid().ToString("N");
_logger.LogError(e, $"{id} Could not observe prices on site {productUrl}");
var price = new ProductPriceFetchResult(e.Message, id, productName, productUrl);
await _priceStore.StoreAsync(price);
}
}
public async Task IndexDocument(ProductPriceFetchResult productPrice)
{
IndexResponse response = _elastic.Index <ProductPriceFetchResult>(productPrice, i => i.Index("prices"));
var debugInfo = response.DebugInformation;
if (!response.IsValid)
{
throw response.OriginalException;
}
}
public async Task StoreAsync(ProductPriceFetchResult productPrice)
{
try
{
await _pricesIndex.IndexDocument(productPrice);
}
catch (Exception e)
{
var json = Newtonsoft.Json.JsonConvert.SerializeObject(productPrice);
_logger.LogError(e, $"Could not save {json}");
}
}
