public async Task <Product> Parse(string source)
{
var domParser = new HtmlParser();
var document = await domParser.ParseAsync(source);
string header = await Task.Run(() => document.QuerySelectorAll(settings.HeaderPattern).FirstOrDefault().TextContent.ToString());
string priceRaw = await Task.Run(() => (document.QuerySelectorAll(settings.PricePattern)?.FirstOrDefault()?.Attributes[settings.PriceAttributeKey]?.Value));
decimal price = priceRaw != null?Decimal.Parse(priceRaw) : 0m;
string url = await Task.Run(() => (document.QuerySelectorAll(settings.Url).FirstOrDefault()).Attributes["href"].Value);
string description = await Task.Run(() => document.QuerySelectorAll(settings.DescriptionPattern).FirstOrDefault().TextContent);
description = description.Trim().Replace('\n', ' ');
string[] imagesUrls = await Task.Run(() => document.QuerySelectorAll(settings.ImagePattern).Select(i => i.Attributes["href"].Value).ToArray());
ImageDownloader imageDownloader = new ImageDownloader();
List <Image> imageList = new List <Image>();
foreach (string imagesUrl in imagesUrls)
{
Image image = await imageDownloader.DownloadImageAsync(imagesUrl);
imageList.Add(image);
}
if (!String.IsNullOrWhiteSpace(header) && price > 0 && !String.IsNullOrWhiteSpace(url))
{
Product product = new Product()
{
Url = url,
Name = header,
Description = description,
Images = imageList,
Prices = new List <Price>()
{
new Price()
{
ProductPrice = price, PriceLastDate = DateTime.Now
}
}
};
return(product);
}
return(new Product());
}
public async void ImageDownloaderLoadImage()
{
// Arrange
ImageDownloader loader = new ImageDownloader();
string url = "https://www.prodj.com.ua/img/img2b/2015/04/20150428170457.jpg";
// Act
Image result = await loader.DownloadImageAsync(url);
// Assert
Assert.NotNull(result);
Assert.IsType <Image>(result);
Assert.NotEmpty(result.Data);
Assert.IsType <Guid>(result.Id);
}
