//Durchsicht die Liste nach einem bestimmten Titel und gibt die gefilterte Liste zurück
public Exams_Collection search(String text)
{
List <Exams_Item> list = info.list;
Exams_Collection copy = new Exams_Collection();
copy.list = new List <Exams_Item>();
copy.list_data = "";
copy.list_title = "Suchergebnisse";
copy.list_title_sec = "für " + text;
foreach (Exams_Item item in list)
{
string searchWithinThis = item.Name;
searchWithinThis = searchWithinThis.ToUpper();
string searchForThis = text;
searchForThis = searchForThis.ToUpper();
int firstCharacter = searchWithinThis.IndexOf(searchForThis);
if (firstCharacter != -1)
{
copy.list.Add(item);
}
}
return(copy);
}
//Liest die Klausurenliste aus einer Datei
public async Task <Exams_Collection> readList()
{
try
{
string text = await fileIO.readText("exams.json");
Exams_Collection list = JsonConvert.DeserializeObject <Exams_Collection>(text);
return(list);
}
catch (Exception ex)
{
Exams_Collection nl = new Exams_Collection();
nl.list_data = "** E-01 **";
nl.list_title = "Fehler";
List <Exams_Item> li = new List <Exams_Item>();
Exams_Item xi = new Exams_Item();
xi.Name = "Aktualisierung notwendig";
xi.Place = "";
xi.Time = "";
xi.Extra = "";
xi.change = "Es sind keine Offlinedaten verfügbar. Zum Abrufen der Daten auf 'Aktualisieren' drücken.";
li.Add(xi);
nl.list = li;
return(nl);
}
}
//Gibt die vollständige Liste sortiert nach Namen zurück
public Exams_Collection getDisplayListByName()
{
Exams_Collection exi = info;
exi.list.Sort((s1, s2) => s1.Name.CompareTo(s2.Name));
info.list_title_sec = "";
return(exi);
}
public async Task <bool> update()
{
Exams_Collection tempList = await ex.downloadList();
if (tempList.list.Count != 0)
{
ex.writeList(tempList);
info = tempList;
return(true);
}
else
{
return(false);
}
}
//Initialisiert die Liste mit den gespeicherten Werten
public async Task init(API_InternalFile fio)
{
ex.fileIO = fio;
info = await ex.readList();
}
public async Task <Exams_Collection> downloadList()
{
Exams_Collection ei = new Exams_Collection();
ei.list_data = "** E-02 **";
ei.list_title = "Fehler";
List <Exams_Item> li = new List <Exams_Item>(1000);
ei.list = li;
try
{
HttpClientHandler handler = new HttpClientHandler();
var cookieContainer = new CookieContainer();
handler.CookieContainer = cookieContainer;
HttpClient client = new HttpClient(handler);
HttpResponseMessage response = await client.GetAsync(new Uri("https://intranet.tuhh.de/stud/pruefung/index.php3"));
var htxt = await response.Content.ReadAsStringAsync();
HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();
htmlDoc.OptionFixNestedTags = true;
//HTML aus String laden
htmlDoc.LoadHtml(htxt);
if (htmlDoc.ParseErrors != null && htmlDoc.ParseErrors.Count() > 0)
{
}
else
{
foreach (HtmlNode cols in htmlDoc.DocumentNode.Descendants("h2"))
{
String rawString = WebTools.removeHTML(cols.InnerText);
Char delimiter = ':';
String[] substrings = rawString.Split(delimiter);
ei.list_title = substrings[1];
}
foreach (HtmlNode table in htmlDoc.DocumentNode.Descendants("tbody"))
{
foreach (HtmlNode row in table.Descendants("tr"))
{
List <string> facts = new List <string>();
foreach (HtmlNode cell in row.Descendants("td"))
{
facts.Add(cell.InnerHtml);
}
if (facts.Count >= 4)
{
Exams_Item x = new Exams_Item();
String blank = facts[2];
String[] split = blank.Split(new string[] { "<br>" }, StringSplitOptions.None);
x.Time = WebTools.removeHTML(facts[1]);
x.Name = WebTools.removeHTML(facts[0]);
x.Extra = WebTools.removeHTML(split[0]);
x.Note = WebTools.removeHTML(facts[3]);
if (split.Length > 1)
{
x.change = WebTools.removeHTML(split[1]);
}
else
{
x.change = "";
}
li.Add(x);
}
}
}
DateTime now = DateTime.Today;
String dateString = now.Day + "." + now.Month + "." + now.Year;
ei.list_data = dateString;
ei.list_time_download = DateTime.Today;
}
}
catch
{
}
return(ei);
}
//Schreib die Klausurenliste in eine Datei
public async void writeList(Exams_Collection list)
{
string json = JsonConvert.SerializeObject(list, Formatting.Indented);
await fileIO.writeText("exams.json", json);
}
