public IReadOnlyList <StudentSelection> Update()
{
var result = new List <StudentSelection>();
using (var stream = _webDownloader.GetLoadStream(_uri))
{
var document = new HtmlDocument();
document.Load(stream, true);
var htmlNodes = document.DocumentNode.Descendants("tbody");
var node = htmlNodes.FirstOrDefault();
if (node == null)
{
throw new ArgumentException("Не найдено ни одной таблицы");
}
string lastSpec = null;
foreach (var childNode in node.Descendants())
{
if (childNode.Name == "strong")
{
TryFindSpecName(childNode.InnerText, ref lastSpec);
}
if (childNode.Name == "li")
{
if (lastSpec == null)
{
throw new ArgumentException("Список людей без предшествуещего имени спецкурса");
}
var pos = childNode.InnerText.IndexOf("--", StringComparison.Ordinal);
result.Add(new StudentSelection
{
Name = childNode.InnerText.Substring(0, pos - 1),
Group = childNode.InnerText.Substring(pos + 3, 5),
SpecCourseName = lastSpec
});
}
}
}
return(result);
}
private IReadOnlyCollection <LessonInfo> GetGroupLessons(string group)
{
var uri = $"{_baseUri}{group}";
try
{
using (var stream = _downloader.GetLoadStream(uri))
{
var document = new HtmlDocument();
document.Load(stream, true);
return(_parser.ParseTable(document, group));
}
}
catch (Exception e)
{
Console.Out.WriteLine($"Проблема с группой {group}: {e.Message}");
throw;
}
}
