private static string GetNodeClass(MediumSearchCategory mediumSearchCategory)
{
switch (mediumSearchCategory)
{
case MediumSearchCategory.Stories:
throw new NotImplementedException();
case MediumSearchCategory.Users:
return("js-userResultsList");
case MediumSearchCategory.Publications:
return("js-collectionResultsList");
default:
throw new ArgumentOutOfRangeException(nameof(mediumSearchCategory), mediumSearchCategory, null);
}
}
public static IEnumerable <InitialCoinOffering> Extract(string html, MediumSearchCategory mediumSearchCategory)
{
var htmlDocument = new HtmlDocument();
htmlDocument.LoadHtml(html);
var htmlNodes = htmlDocument.DocumentNode.SelectNodes($".//*[contains(@class,'{GetNodeClass(mediumSearchCategory)}')]//li//h3");
if (htmlNodes == null)
{
return(new List <InitialCoinOffering>());
}
return(from htmlNode in htmlNodes
let href = htmlNode.ChildNodes.FirstOrDefault()?.Attributes["href"].Value
let hyperlink = href?.Split('?').Take(1).FirstOrDefault()
select new InitialCoinOffering
{
Label = htmlNode.InnerText,
Hyperlink = hyperlink,
CreatedDate = DateTime.Now.ToString("MM/dd/yyyy"),
InitialCoinOfferingSourceId = (int)InitialCoinOfferingSource.Medium
});
}
