public Section(IHeader header = null, ICourseLink parentCourse = null)
{
Header = header != null
? new Header(header.Name, header.Order, header.AnchorId, this)
: new Header(parentSection: this);
ParentCourse = parentCourse;
Links = new List <IDownloadableLink>();
}
public static string CourseLink(this HtmlHelper helper, ICourseLink course)
{
if (course == null)
{
return(null);
}
if (course.IsTrack.GetValueOrDefault())
{
return(HtmlControls.Anchor("/track/" + course.UrlName,
course.GetName()).ToString());
}
return(helper.CourseLink(course.UrlName, course.GetName()));
}
public static string CourseLinkShortName(this HtmlHelper helper, ICourseLink course)
{
if (course == null)
{
return(null);
}
if (course.WebShortName.IsEmpty())
{
return(helper.CourseLink(course));
}
if (course.IsTrack.GetValueOrDefault())
{
return(helper.ActionLink <TrackController>(
tc => tc.Details(course.UrlName), course.WebShortName).ToString());
}
return(helper.CourseLink(course.UrlName, course.WebShortName));
}
public static string GetShortName(this ICourseLink courseLink)
{
return(courseLink.WebShortName.IsEmpty()
? courseLink.GetName()
: courseLink.WebShortName);
}
public static string GetName(this ICourseLink courseLink)
{
return(courseLink.WebName.IsEmpty()
? courseLink.Name
: courseLink.WebName);
}
public static async Task <List <ISection> > ExtractSectionsForCourse(ICourseLink courseLink)
{
await CoursesClient.LazyRefresh();
var coursePageText = await CoursesClient.SessionClient.GetStringAsyncHttp(courseLink.Url);
CoursesClient.FindSessKey(coursePageText);
var doc = new HtmlDocument();
doc.LoadHtml(coursePageText);
var headersLinks = doc.DocumentNode.SelectNodes(XPathFilterLinksHeadersFolders);
SharedVars.Sections = new List <ISection>();
var currentSection = new Section();
SharedVars.Sections.Add(currentSection);
foreach (var headerLink in headersLinks)
{
var itemType = TryGetItemType(headerLink);
string innerText = null;
string href = null;
if (itemType != ItemType.Header)
{
innerText = headerLink.Descendants().First(d => d.Name == "#text").InnerText.DecodeHtml();
href = headerLink.Attributes.First(l => l.Name == "href").Value;
}
switch (itemType)
{
case ItemType.Header:
var headerName = headerLink.InnerText.DecodeHtml();
var headerTag = headerLink.OriginalName;
var headerId = FindIdFromAncestors(headerLink);
currentSection = new Section(new Header(headerName, headerTag, headerId), courseLink);
SharedVars.Sections.Add(currentSection);
break;
case ItemType.File:
currentSection.Links.Add(new FileLink(innerText, href, currentSection));
break;
case ItemType.Folder:
currentSection.Links.Add(new FolderLink(innerText, href, currentSection));
break;
case ItemType.Url:
currentSection.Links.Add(new ExternalLink(innerText, href, currentSection));
break;
case ItemType.Page:
currentSection.Links.Add(new PageLink(innerText, href, currentSection));
break;
default:
throw new ArgumentOutOfRangeException();
}
}
SharedVars.Sections = SharedVars.Sections.Where(s => s.Links.Any()).ToList();
return(SharedVars.Sections);
}
