public bool AddScheduleSubjectsByClassId(ScheduleSubjectOfClassDto dto)
{
try
{
if (!IsValidInput(dto))
{
return(false);
}
foreach (var item in dto.ScheduleSubjects)
{
var schedule = new ScheduleSubject
{
TeacherId = item.TeacherId,
ClassId = dto.ClassId,
SubjectId = item.SubjectId,
SemesterId = dto.SemesterId,
DayLessonId = GetDayLessonId(item.DayOfWeek, item.Lesson)
};
db.ScheduleSubjects.Add(schedule);
}
db.SaveChanges();
return(true);
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// Parse single subject
/// </summary>
/// <param name="subject"> Single subject in HTML format </param>
/// <returns> ScheduleSubject object </returns>
public ScheduleSubject LoadSubject(HtmlNode subject)
{
HtmlNode dataDiv = subject
.ChildNodes
.Single(x => x.Name == "div")
.ChildNodes
.Single(x => x.Name == "div");
try
{
if (dataDiv.GetClasses().FirstOrDefault() == null)
{
return(null);
}
else if (dataDiv.GetClasses().First() == "empty")
{
return(null);
}
}
catch (Exception e)
{
MessageBox.Show("NEZNÁMÝ PŘEDMĚT \n\n" + e.ToString());
throw new Exception("Subject cannot be parsed");
}
string data = dataDiv.Attributes["data-detail"].Value;
ScheduleSubject scheduleSubject = JsonConvert.DeserializeObject <ScheduleSubject>(data);
scheduleSubject.ShortName = dataDiv
.ChildNodes
.Single(x => x.Name == "div")
.ChildNodes
.Where(x => x.Name == "div")
.ToList()[1]
.InnerText;
return(scheduleSubject);
}
public UIElement GenerateTooltip(ScheduleSubject scheduleSubject)
{
string tooltipContent = (scheduleSubject.Teacher != "" ? $"Učitel: {scheduleSubject.Teacher}\n" : "") +
(scheduleSubject.ClassLocation != "" ? $"Učebna: {scheduleSubject.ClassLocation}\n" : "") +
(scheduleSubject.Group != "" ? $"Skupina: {scheduleSubject.Group}\n" : "") +
(scheduleSubject.LessonSubject != "" ? $"Téma: {scheduleSubject.LessonSubject}\n" : "") +
(scheduleSubject.ChangeInfo != "" ? $"Změny: {scheduleSubject.ChangeInfo}\n" : "") +
(scheduleSubject.Notice != "" ? $"Upozornění: {scheduleSubject.Notice}\n" : "");
TextBlock textBlock = new TextBlock()
{
Text = tooltipContent.Trim(),
Foreground = new SolidColorBrush()
{
Color = Color.FromRgb(255, 255, 247),
}
};
Card card = new Card()
{
Content = textBlock,
Padding = new Thickness(3),
};
return(card);
}
/// <summary>
/// Generate single subject cell
/// </summary>
/// <param name="scheduleSubject"> ScheduleSubject from which cell is generated </param>
/// <returns></returns>
public UIElement GenerateCell(ScheduleSubject scheduleSubject)
{
if (scheduleSubject == null)
{
return(new TextBlock());
}
TextBlock textBlock = new TextBlock
{
Text = scheduleSubject.ShortName,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
TextWrapping = TextWrapping.Wrap,
ToolTip = GenerateTooltip(scheduleSubject),
};
Card card = new Card()
{
Content = textBlock,
Margin = new Thickness(2),
UniformCornerRadius = 3,
};
return(card);
}
public List<ScheduleSubject> ParseSchedule(string html)
{
List<ScheduleSubject> subjects = new List<ScheduleSubject>();
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(html);
var tables = doc.DocumentNode.SelectNodes("//table[@class='datadisplaytable'][position() mod 2 = 1]");
foreach (HtmlNode table in tables)
{
ScheduleSubject subject = new ScheduleSubject();
var caption = table.FirstChild;
subject.Name = caption.InnerText;
var names_td = table.SelectNodes("./tr[4]/td/text()");
subject.Professors = "";
foreach (HtmlNode node in names_td)
subject.Professors += node.InnerText.Replace("\n", "");
var nrc_td = table.SelectSingleNode("./tr[2]/td");
subject.NRC = nrc_td.InnerText;
var blocks_html = table.NextSibling.NextSibling;
var rows = blocks_html.SelectNodes("./tr[position() > 1]");
subject.Blocks = new List<ScheduleSubject.Block>();
foreach (HtmlNode row in rows)
{
var days_td = row.SelectSingleNode("./td[3]");
var days = days_td.FirstChild.InnerText.Split(' ');
foreach (string day in days)
{
if (day.Trim() == "")
continue;
ScheduleSubject.Block block = new ScheduleSubject.Block();
block.Day = GetDayOfWeek(day.ToCharArray()[0]);
var hours_string = days_td.PreviousSibling.PreviousSibling.FirstChild.InnerText.Split('-');
block.StartHour = DateTime.Parse(hours_string[0].Trim());
block.Duration = DateTime.Parse(hours_string[1].Trim()) - block.StartHour;
var location_td = days_td.NextSibling.NextSibling;
block.Location = location_td.FirstChild.InnerHtml;
var dates_string = location_td.NextSibling.NextSibling.FirstChild.InnerHtml.Split('-');
// For some reason, some months are in spanish and others in english
dates_string[0] = dates_string[0].Replace("Ene", "Jan");
block.StartDate = DateTime.Parse(dates_string[0].Trim());
while (block.StartDate.DayOfWeek != block.Day)
block.StartDate = block.StartDate.AddDays(1);
block.EndDate = DateTime.Parse(dates_string[1].Trim());
while (block.EndDate.DayOfWeek != block.Day)
block.EndDate = block.EndDate.AddDays(-1);
subject.Blocks.Add(block);
}
}
subjects.Add(subject);
}
return subjects;
}
