public static ForumPageData ParseForumPage(HtmlDocument doc)
{
var top = doc.DocumentNode;
AwfulForum forum = new AwfulForum();
int pageNumber = -1;
// first, let's find the forum id
var formNode = top.Descendants("form")
.Where(node => node.GetAttributeValue("id", "").Equals("ac_timemachine"))
.FirstOrDefault();
if (formNode != null)
{
string idString = formNode.GetAttributeValue("action", "");
// strip undesiriable stuff off
idString = idString.Replace("/forumdisplay.php?", "");
idString = idString.Split('=').Last();
int id = -1;
if (int.TryParse(idString, out id))
{
forum.ID = id;
}
}
// then, let's find the page number
var pageNumberNode = top.Descendants("span")
.Where(node => node.GetAttributeValue("class", "").Equals("curpage"))
.FirstOrDefault();
if (pageNumberNode != null)
{
var pageNumberText = pageNumberNode.InnerText;
if (!int.TryParse(pageNumberText, out pageNumber)) { pageNumber = -1; }
}
var page = new AwfulForumPage(forum, pageNumber);
HandleMaxPages(page, top);
HandleThreads(page, top);
return page;
}
private static void HandleMaxPages(AwfulForumPage page, HtmlNode node)
{
var maxPagesNode = node.Descendants("div")
.Where(n => n.GetAttributeValue("class", "").Equals("pages"))
.FirstOrDefault();
if (maxPagesNode == null)
{
Logger.AddEntry("AwfulForumPage - Could not parse maxPagesNode.");
page.Parent.TotalPages = 1;
}
else
{
page.Parent.TotalPages = ExtractMaxForumPages(maxPagesNode);
Logger.AddEntry(string.Format("AwfulForumPage - maxPagesNode parsed. Value: {0}", page.Parent.TotalPages));
}
}
private static void HandleThreads(AwfulForumPage page, HtmlNode node)
{
var forumThreadsTable = node.Descendants("table")
.Where(n => n.Id.Equals("forum"))
.First();
var threadList = forumThreadsTable.Descendants("tbody").First();
var threadsInfo = threadList.Descendants("tr");
page.Threads = GenerateThreadData(page, threadsInfo);
}
// TODO: Remember to sort thread data by new posts
private static IList<AwfulThread> GenerateThreadData(AwfulForumPage page, IEnumerable<HtmlNode> threadsInfo)
{
Logger.AddEntry("AwfulForumPage - Generating thread data...");
List<AwfulThread> data = new List<AwfulThread>();
foreach (var node in threadsInfo)
{
var thread = AwfulThreadParser.ParseFromNode(page.ForumID, node);
data.Add(thread);
}
return data;
}