// Search Goodreads for possible kindle edition of book and return ASIN.
public async Task <string> SearchBookASINById(string id, CancellationToken cancellationToken = default)
{
try
{
var bookHtmlDoc = await _httpClient.GetPageAsync(BookUrl(id), cancellationToken);
var link = bookHtmlDoc.DocumentNode.SelectSingleNode("//div[@class='otherEditionsActions']/a");
var match = Regex.Match(link.GetAttributeValue("href", ""), @"editions/([0-9]*)-");
if (match.Success)
{
var kindleEditionsUrl = string.Format("https://www.goodreads.com/work/editions/{0}?utf8=%E2%9C%93&sort=num_ratings&filter_by_format=Kindle+Edition", match.Groups[1].Value);
bookHtmlDoc = await _httpClient.GetPageAsync(kindleEditionsUrl, cancellationToken);
var bookNodes = bookHtmlDoc.DocumentNode.SelectNodes("//div[@class='elementList clearFix']");
if (bookNodes != null)
{
foreach (var book in bookNodes)
{
return(_amazonClient.ParseAsin(book.InnerHtml));
}
}
}
return("");
}
catch (Exception ex)
{
_logger.Log($"An error occurred while searching for {id}'s ASIN.\r\n{ex.Message}\r\n{ex.StackTrace}");
return("");
}
}
private void btnOpenXml_Click(object sender, EventArgs e)
{
var openFile = new OpenFileDialog
{
Title = "Open XML or TXT file",
Filter = "XML files (*.xml)|*.xml|TXT files (*.txt)|*.txt",
InitialDirectory = $@"{Environment.CurrentDirectory}\xml\"
};
if (openFile.ShowDialog() != DialogResult.OK)
{
return;
}
var filetype = Path.GetExtension(openFile.FileName);
txtAsin.Text = _amazonClient.ParseAsin(openFile.FileName) ?? "";
try
{
switch (filetype)
{
case ".xml":
_terms = XmlUtil.DeserializeFile <List <Term> >(openFile.FileName);
break;
case ".txt":
_terms = _termsService.ReadTermsFromTxt(openFile.FileName).ToList();
break;
default:
MessageBox.Show($"Error: Bad file type \"{filetype}\"");
break;
}
ReloadTerms();
}
catch (Exception ex)
{
MessageBox.Show($"Error:\r\n{ex.Message}\r\n{ex.StackTrace}");
}
}
