public async Task <string> ExportAsync(TimetableKind kind, string timetableName, ICollection <Lesson> lessons)
{
var fileName = timetableName + "_" + DateTime.Now.ToString("dd-M-yyyy-h-mm-ss");
var vacations = await Vacation.LoadForYearAsync(Bundesland.Hessen, DateTime.Now.Year.ToString());
vacations.Insert(vacations.FindIndex(v => v.Title == "Osterferien 2017 Hessen"), new Vacation("HACKY", new DateTime(2017, 1, 1), new DateTime(2017, 2, 3)));
var semesterDates = await Vacation.GetSemesterDatesAsync(Semester.Second, vacations);
var semesterStart = semesterDates.Item1;
var semesterEnd = semesterDates.Item2;
var calendar = new Calendar();
for (int i = 0; i < vacations.Count - 1; i++)
{
var yearPartStart = vacations[i].End.AddDays(3);
var yearPartEnd = vacations[i + 1].Begin;
// Workaround for inconsistent vacation data by api, ensure start is monday
if (yearPartStart.DayOfWeek != DayOfWeek.Monday && yearPartStart.DayOfWeek != DayOfWeek.Saturday && yearPartStart.DayOfWeek != DayOfWeek.Sunday)
{
yearPartStart = yearPartStart.AddDays((int)DayOfWeek.Monday - (int)yearPartStart.DayOfWeek);
}
else if (yearPartStart.DayOfWeek == DayOfWeek.Saturday)
{
yearPartStart = yearPartStart.AddDays(2);
}
else if (yearPartStart.DayOfWeek == DayOfWeek.Sunday)
{
yearPartStart = yearPartStart.AddDays(1);
}
if (yearPartStart >= semesterEnd || yearPartStart < semesterStart)
{
continue;
}
foreach (var lesson in lessons)
{
var dateStart = new DateTime(yearPartStart.Year, yearPartStart.Month, yearPartStart.Day, Periods.Hours[lesson.Period], Periods.Minutes[lesson.Period], 0);
dateStart = dateStart.AddDays((int)lesson.Day - (int)DayOfWeek.Monday);
int week = dateStart.GetIso8601WeekOfYear();
if (Vacation.IsInVacation(dateStart, vacations))
{
continue;
}
if (lesson.Week == Week.Odd && week % 2 == 0 || lesson.Week == Week.Even && week % 2 == 1)
{
dateStart = dateStart.AddDays(7);
}
var dateEnd = dateStart.AddMinutes(Periods.Duration * lesson.Duration + (lesson.Period != 8 ? lesson.Duration / 2 * 5 : 0));
var rrule = new RecurrencePattern(FrequencyType.Weekly, lesson.Week == Week.Both ? 1 : 2);
rrule.Until = yearPartEnd;
var description = (kind == TimetableKind.Teacher ? "Kurs: " : "Lehrer: ") + lesson.TeacherOrSchoolClass;
var room = Names.ResolveRoom(lesson.Room);
var calEvent = new Event()
{
Summary = Names.ResolveSubject(lesson.Name),
Description = description,
Location = "Gesamtschule Hungen" + (!string.IsNullOrWhiteSpace(room) ? ": " + Names.ResolveRoom(lesson.Room) : string.Empty),
DtStart = new CalDateTime(dateStart),
DtEnd = new CalDateTime(dateEnd),
RecurrenceRules = { rrule },
};
calendar.Events.Add(calEvent);
}
}
var serializer = new CalendarSerializer(new SerializationContext());
var serializedCalendar = serializer.SerializeToString(calendar);
string filePath = Path.Combine("Static", "ICalendar", fileName + ".ics");
File.WriteAllText(filePath, serializedCalendar);
return(fileName);
}