async Task LoadChanges()
{
if (IsBusy)
{
return;
}
IsBusy = true;
Change.Clear();
DateTime date = DateTime.Today;
if (App.Current.Properties["ChangeState"].ToString() != "2")
{
Title = App.Current.Properties["ChangeState"].ToString();
}
int state = Int32.Parse(Title);
date = date.AddDays(state);
var weekday = (int)date.DayOfWeek;
if ((int)date.DayOfWeek > 5)
{
int ile = 8 - (int)date.DayOfWeek;
date = date.AddDays(ile);
}
string MyClass = App.Current.Properties["Class"].ToString();
string day = date.Day.ToString();
string monthday = date.Month.ToString().PadLeft(2, '0');
try
{
string url = "http://www.zse.srem.pl/index.php?opcja=modules/zastepstwa/view_id&id=" + (int)date.DayOfWeek;
HtmlWeb web = new HtmlWeb
{
CachePath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "/Change" + state,
UsingCache = true
};
HtmlDocument htmldoc = await Task.Run(() => web.Load(url));
var html1 = htmldoc.DocumentNode.SelectNodes("//span[contains(text(),'Zastępstwa')]");
if (html1 != null)
{
string html1_title = html1[0].InnerText;
html1_title = html1_title.Replace(" ", "");
Debug.WriteLine(html1_title);
if (html1_title.Contains(day + "." + monthday))
{
var htmlNodes = htmldoc.DocumentNode.SelectNodes("//p//span");
foreach (var node in htmlNodes)
{
if (node.SelectSingleNode("//strike") != null)
{
node.SelectSingleNode("//strike").Remove();
}
string line = node.InnerText;
if (node.InnerHtml != "<br>")
{
if (line.Contains("\r\n"))
{
line = line.Replace("\r\n", " ");
}
if (line.Contains(monthday + "."))
{
line = line.Replace(monthday + ".", monthday);
}
if (line.IndexOf(" l.") != -1)
{
string Class = line.Substring(0, line.IndexOf(" l."));
Class = Class.Substring(4);
line = line.Substring(line.IndexOf(" l.") + 1);
if (Class.ToLower() == MyClass)
{
Change.Add(new ChangeList()
{
Changed = line
});
}
}
}
else
{
break;
}
}
if (Change.Count == 0)
{
Change.Add(new ChangeList()
{
Changed = "Brak zastępstw dla twojej klasy 😞"
});
}
}
else
{
Change.Add(new ChangeList()
{
Changed = "Zastępstwa na ten dzień nie zostały jeszcze wpisane 😞"
});
}
}
else
{
Change.Add(new ChangeList()
{
Changed = "Strona zastępstw na ten dzień jest pusta 😞"
});
}
}
catch (System.Net.WebException)
{
Change.Add(new ChangeList()
{
Changed = "Brak połączenia z serwerem 🚫"
});
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
IsBusy = false;
}