/**
* get a list of year week days according to the BYMONTH rule
*
* @access protected
*/
protected function getYearWeekDays(ilDateTime $seed)
{
$time = microtime(true);
$year_days = array();
$current_year = $seed->get(IL_CAL_FKT_DATE, 'Y');
$start = new ilDate($current_year . '-01-01', IL_CAL_DATE);
$offset = $start->get(IL_CAL_FKT_DATE, 'w');
$days = array(0 => 'SU', 1 => 'MO', 2 => 'TU', 3 => 'WE', 4 => 'TH', 5 => 'FR', 6 => 'SA');
for ($i = 0; $i < $offset; $i++) {
next($days);
}
$num_days = ilCalendarUtil::_isLeapYear($current_year) ? 366 : 365;
for ($i = 0; $i < $num_days; $i++) {
if (($current_day = current($days)) == false) {
$current_day = reset($days);
}
$year_days[$current_day][] = $i;
next($days);
}
return $year_days;
}
