public static async Task <List <ICourseLink> > ExtractCourses()
{
await CoursesClient.LazyRefresh();
var coursesPageText = await CoursesClient.SessionClient.GetStringAsyncHttp(CoursesProfileAllCoursesUrl);
CoursesClient.FindSessKey(coursesPageText);
var doc = new HtmlDocument();
doc.LoadHtml(coursesPageText);
var coursesLinksNodes = doc.DocumentNode.SelectNodes(XPathFilterProfileCoursesLinks);
var coursesLinksTasks = coursesLinksNodes
.Where(l => Regex.IsMatch(l.InnerText, CurrentSemesterCourseLongFormNameRegex))
.Select(async(l, _) =>
{
var longName = ExtractName(l);
var url = ExtractHref(l);
string shortName;
using (var courseHtml = await CoursesClient.SessionClient.GetStreamAsyncHttp(url))
{
shortName = LazyHtmlParser.FindShortNameInHtml(courseHtml);
shortName = CleanName(shortName, true);
}
return(new CourseLink($"{shortName,-8}{longName}", url));
});
var coursesLinks = await Task.WhenAll(coursesLinksTasks);
SharedVars.Courses = coursesLinks.ToList <ICourseLink>();
return(SharedVars.Courses);
}
