mirror of
https://github.com/OpenXE-org/OpenXE.git
synced 2024-12-28 07:30:28 +01:00
970 lines
30 KiB
PHP
970 lines
30 KiB
PHP
<?php
|
|
|
|
namespace Sabre\VObject\Recur;
|
|
|
|
use DateTimeImmutable;
|
|
use DateTimeInterface;
|
|
use Iterator;
|
|
use Sabre\VObject\DateTimeParser;
|
|
use Sabre\VObject\InvalidDataException;
|
|
use Sabre\VObject\Property;
|
|
|
|
/**
|
|
* RRuleParser.
|
|
*
|
|
* This class receives an RRULE string, and allows you to iterate to get a list
|
|
* of dates in that recurrence.
|
|
*
|
|
* For instance, passing: FREQ=DAILY;LIMIT=5 will cause the iterator to contain
|
|
* 5 items, one for each day.
|
|
*
|
|
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
|
|
* @author Evert Pot (http://evertpot.com/)
|
|
* @license http://sabre.io/license/ Modified BSD License
|
|
*/
|
|
class RRuleIterator implements Iterator
|
|
{
|
|
/**
|
|
* Creates the Iterator.
|
|
*
|
|
* @param string|array $rrule
|
|
* @param DateTimeInterface $start
|
|
*/
|
|
public function __construct($rrule, DateTimeInterface $start)
|
|
{
|
|
$this->startDate = $start;
|
|
$this->parseRRule($rrule);
|
|
$this->currentDate = clone $this->startDate;
|
|
}
|
|
|
|
/* Implementation of the Iterator interface {{{ */
|
|
|
|
public function current()
|
|
{
|
|
if (!$this->valid()) {
|
|
return;
|
|
}
|
|
|
|
return clone $this->currentDate;
|
|
}
|
|
|
|
/**
|
|
* Returns the current item number.
|
|
*
|
|
* @return int
|
|
*/
|
|
public function key()
|
|
{
|
|
return $this->counter;
|
|
}
|
|
|
|
/**
|
|
* Returns whether the current item is a valid item for the recurrence
|
|
* iterator. This will return false if we've gone beyond the UNTIL or COUNT
|
|
* statements.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function valid()
|
|
{
|
|
if (null === $this->currentDate) {
|
|
return false;
|
|
}
|
|
if (!is_null($this->count)) {
|
|
return $this->counter < $this->count;
|
|
}
|
|
|
|
return is_null($this->until) || $this->currentDate <= $this->until;
|
|
}
|
|
|
|
/**
|
|
* Resets the iterator.
|
|
*/
|
|
public function rewind()
|
|
{
|
|
$this->currentDate = clone $this->startDate;
|
|
$this->counter = 0;
|
|
}
|
|
|
|
/**
|
|
* Goes on to the next iteration.
|
|
*/
|
|
public function next()
|
|
{
|
|
// Otherwise, we find the next event in the normal RRULE
|
|
// sequence.
|
|
switch ($this->frequency) {
|
|
case 'hourly':
|
|
$this->nextHourly();
|
|
break;
|
|
|
|
case 'daily':
|
|
$this->nextDaily();
|
|
break;
|
|
|
|
case 'weekly':
|
|
$this->nextWeekly();
|
|
break;
|
|
|
|
case 'monthly':
|
|
$this->nextMonthly();
|
|
break;
|
|
|
|
case 'yearly':
|
|
$this->nextYearly();
|
|
break;
|
|
}
|
|
++$this->counter;
|
|
}
|
|
|
|
/* End of Iterator implementation }}} */
|
|
|
|
/**
|
|
* Returns true if this recurring event never ends.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isInfinite()
|
|
{
|
|
return !$this->count && !$this->until;
|
|
}
|
|
|
|
/**
|
|
* This method allows you to quickly go to the next occurrence after the
|
|
* specified date.
|
|
*
|
|
* @param DateTimeInterface $dt
|
|
*/
|
|
public function fastForward(DateTimeInterface $dt)
|
|
{
|
|
while ($this->valid() && $this->currentDate < $dt) {
|
|
$this->next();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The reference start date/time for the rrule.
|
|
*
|
|
* All calculations are based on this initial date.
|
|
*
|
|
* @var DateTimeInterface
|
|
*/
|
|
protected $startDate;
|
|
|
|
/**
|
|
* The date of the current iteration. You can get this by calling
|
|
* ->current().
|
|
*
|
|
* @var DateTimeInterface
|
|
*/
|
|
protected $currentDate;
|
|
|
|
/**
|
|
* Frequency is one of: secondly, minutely, hourly, daily, weekly, monthly,
|
|
* yearly.
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $frequency;
|
|
|
|
/**
|
|
* The number of recurrences, or 'null' if infinitely recurring.
|
|
*
|
|
* @var int
|
|
*/
|
|
protected $count;
|
|
|
|
/**
|
|
* The interval.
|
|
*
|
|
* If for example frequency is set to daily, interval = 2 would mean every
|
|
* 2 days.
|
|
*
|
|
* @var int
|
|
*/
|
|
protected $interval = 1;
|
|
|
|
/**
|
|
* The last instance of this recurrence, inclusively.
|
|
*
|
|
* @var DateTimeInterface|null
|
|
*/
|
|
protected $until;
|
|
|
|
/**
|
|
* Which seconds to recur.
|
|
*
|
|
* This is an array of integers (between 0 and 60)
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $bySecond;
|
|
|
|
/**
|
|
* Which minutes to recur.
|
|
*
|
|
* This is an array of integers (between 0 and 59)
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $byMinute;
|
|
|
|
/**
|
|
* Which hours to recur.
|
|
*
|
|
* This is an array of integers (between 0 and 23)
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $byHour;
|
|
|
|
/**
|
|
* The current item in the list.
|
|
*
|
|
* You can get this number with the key() method.
|
|
*
|
|
* @var int
|
|
*/
|
|
protected $counter = 0;
|
|
|
|
/**
|
|
* Which weekdays to recur.
|
|
*
|
|
* This is an array of weekdays
|
|
*
|
|
* This may also be preceded by a positive or negative integer. If present,
|
|
* this indicates the nth occurrence of a specific day within the monthly or
|
|
* yearly rrule. For instance, -2TU indicates the second-last tuesday of
|
|
* the month, or year.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $byDay;
|
|
|
|
/**
|
|
* Which days of the month to recur.
|
|
*
|
|
* This is an array of days of the months (1-31). The value can also be
|
|
* negative. -5 for instance means the 5th last day of the month.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $byMonthDay;
|
|
|
|
/**
|
|
* Which days of the year to recur.
|
|
*
|
|
* This is an array with days of the year (1 to 366). The values can also
|
|
* be negative. For instance, -1 will always represent the last day of the
|
|
* year. (December 31st).
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $byYearDay;
|
|
|
|
/**
|
|
* Which week numbers to recur.
|
|
*
|
|
* This is an array of integers from 1 to 53. The values can also be
|
|
* negative. -1 will always refer to the last week of the year.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $byWeekNo;
|
|
|
|
/**
|
|
* Which months to recur.
|
|
*
|
|
* This is an array of integers from 1 to 12.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $byMonth;
|
|
|
|
/**
|
|
* Which items in an existing st to recur.
|
|
*
|
|
* These numbers work together with an existing by* rule. It specifies
|
|
* exactly which items of the existing by-rule to filter.
|
|
*
|
|
* Valid values are 1 to 366 and -1 to -366. As an example, this can be
|
|
* used to recur the last workday of the month.
|
|
*
|
|
* This would be done by setting frequency to 'monthly', byDay to
|
|
* 'MO,TU,WE,TH,FR' and bySetPos to -1.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $bySetPos;
|
|
|
|
/**
|
|
* When the week starts.
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $weekStart = 'MO';
|
|
|
|
/* Functions that advance the iterator {{{ */
|
|
|
|
/**
|
|
* Does the processing for advancing the iterator for hourly frequency.
|
|
*/
|
|
protected function nextHourly()
|
|
{
|
|
$this->currentDate = $this->currentDate->modify('+'.$this->interval.' hours');
|
|
}
|
|
|
|
/**
|
|
* Does the processing for advancing the iterator for daily frequency.
|
|
*/
|
|
protected function nextDaily()
|
|
{
|
|
if (!$this->byHour && !$this->byDay) {
|
|
$this->currentDate = $this->currentDate->modify('+'.$this->interval.' days');
|
|
|
|
return;
|
|
}
|
|
|
|
if (!empty($this->byHour)) {
|
|
$recurrenceHours = $this->getHours();
|
|
}
|
|
|
|
if (!empty($this->byDay)) {
|
|
$recurrenceDays = $this->getDays();
|
|
}
|
|
|
|
if (!empty($this->byMonth)) {
|
|
$recurrenceMonths = $this->getMonths();
|
|
}
|
|
|
|
do {
|
|
if ($this->byHour) {
|
|
if ('23' == $this->currentDate->format('G')) {
|
|
// to obey the interval rule
|
|
$this->currentDate = $this->currentDate->modify('+'.($this->interval - 1).' days');
|
|
}
|
|
|
|
$this->currentDate = $this->currentDate->modify('+1 hours');
|
|
} else {
|
|
$this->currentDate = $this->currentDate->modify('+'.$this->interval.' days');
|
|
}
|
|
|
|
// Current month of the year
|
|
$currentMonth = $this->currentDate->format('n');
|
|
|
|
// Current day of the week
|
|
$currentDay = $this->currentDate->format('w');
|
|
|
|
// Current hour of the day
|
|
$currentHour = $this->currentDate->format('G');
|
|
} while (
|
|
($this->byDay && !in_array($currentDay, $recurrenceDays)) ||
|
|
($this->byHour && !in_array($currentHour, $recurrenceHours)) ||
|
|
($this->byMonth && !in_array($currentMonth, $recurrenceMonths))
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Does the processing for advancing the iterator for weekly frequency.
|
|
*/
|
|
protected function nextWeekly()
|
|
{
|
|
if (!$this->byHour && !$this->byDay) {
|
|
$this->currentDate = $this->currentDate->modify('+'.$this->interval.' weeks');
|
|
|
|
return;
|
|
}
|
|
|
|
if ($this->byHour) {
|
|
$recurrenceHours = $this->getHours();
|
|
}
|
|
|
|
if ($this->byDay) {
|
|
$recurrenceDays = $this->getDays();
|
|
}
|
|
|
|
// First day of the week:
|
|
$firstDay = $this->dayMap[$this->weekStart];
|
|
|
|
do {
|
|
if ($this->byHour) {
|
|
$this->currentDate = $this->currentDate->modify('+1 hours');
|
|
} else {
|
|
$this->currentDate = $this->currentDate->modify('+1 days');
|
|
}
|
|
|
|
// Current day of the week
|
|
$currentDay = (int) $this->currentDate->format('w');
|
|
|
|
// Current hour of the day
|
|
$currentHour = (int) $this->currentDate->format('G');
|
|
|
|
// We need to roll over to the next week
|
|
if ($currentDay === $firstDay && (!$this->byHour || '0' == $currentHour)) {
|
|
$this->currentDate = $this->currentDate->modify('+'.($this->interval - 1).' weeks');
|
|
|
|
// We need to go to the first day of this week, but only if we
|
|
// are not already on this first day of this week.
|
|
if ($this->currentDate->format('w') != $firstDay) {
|
|
$this->currentDate = $this->currentDate->modify('last '.$this->dayNames[$this->dayMap[$this->weekStart]]);
|
|
}
|
|
}
|
|
|
|
// We have a match
|
|
} while (($this->byDay && !in_array($currentDay, $recurrenceDays)) || ($this->byHour && !in_array($currentHour, $recurrenceHours)));
|
|
}
|
|
|
|
/**
|
|
* Does the processing for advancing the iterator for monthly frequency.
|
|
*/
|
|
protected function nextMonthly()
|
|
{
|
|
$currentDayOfMonth = $this->currentDate->format('j');
|
|
if (!$this->byMonthDay && !$this->byDay) {
|
|
// If the current day is higher than the 28th, rollover can
|
|
// occur to the next month. We Must skip these invalid
|
|
// entries.
|
|
if ($currentDayOfMonth < 29) {
|
|
$this->currentDate = $this->currentDate->modify('+'.$this->interval.' months');
|
|
} else {
|
|
$increase = 0;
|
|
do {
|
|
++$increase;
|
|
$tempDate = clone $this->currentDate;
|
|
$tempDate = $tempDate->modify('+ '.($this->interval * $increase).' months');
|
|
} while ($tempDate->format('j') != $currentDayOfMonth);
|
|
$this->currentDate = $tempDate;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
while (true) {
|
|
$occurrences = $this->getMonthlyOccurrences();
|
|
|
|
foreach ($occurrences as $occurrence) {
|
|
// The first occurrence thats higher than the current
|
|
// day of the month wins.
|
|
if ($occurrence > $currentDayOfMonth) {
|
|
break 2;
|
|
}
|
|
}
|
|
|
|
// If we made it all the way here, it means there were no
|
|
// valid occurrences, and we need to advance to the next
|
|
// month.
|
|
//
|
|
// This line does not currently work in hhvm. Temporary workaround
|
|
// follows:
|
|
// $this->currentDate->modify('first day of this month');
|
|
$this->currentDate = new DateTimeImmutable($this->currentDate->format('Y-m-1 H:i:s'), $this->currentDate->getTimezone());
|
|
// end of workaround
|
|
$this->currentDate = $this->currentDate->modify('+ '.$this->interval.' months');
|
|
|
|
// This goes to 0 because we need to start counting at the
|
|
// beginning.
|
|
$currentDayOfMonth = 0;
|
|
|
|
// To prevent running this forever (better: until we hit the max date of DateTimeImmutable) we simply
|
|
// stop at 9999-12-31. Looks like the year 10000 problem is not solved in php ....
|
|
if ($this->currentDate->getTimestamp() > 253402300799) {
|
|
$this->currentDate = null;
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
$this->currentDate = $this->currentDate->setDate(
|
|
(int) $this->currentDate->format('Y'),
|
|
(int) $this->currentDate->format('n'),
|
|
(int) $occurrence
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Does the processing for advancing the iterator for yearly frequency.
|
|
*/
|
|
protected function nextYearly()
|
|
{
|
|
$currentMonth = $this->currentDate->format('n');
|
|
$currentYear = $this->currentDate->format('Y');
|
|
$currentDayOfMonth = $this->currentDate->format('j');
|
|
|
|
// No sub-rules, so we just advance by year
|
|
if (empty($this->byMonth)) {
|
|
// Unless it was a leap day!
|
|
if (2 == $currentMonth && 29 == $currentDayOfMonth) {
|
|
$counter = 0;
|
|
do {
|
|
++$counter;
|
|
// Here we increase the year count by the interval, until
|
|
// we hit a date that's also in a leap year.
|
|
//
|
|
// We could just find the next interval that's dividable by
|
|
// 4, but that would ignore the rule that there's no leap
|
|
// year every year that's dividable by a 100, but not by
|
|
// 400. (1800, 1900, 2100). So we just rely on the datetime
|
|
// functions instead.
|
|
$nextDate = clone $this->currentDate;
|
|
$nextDate = $nextDate->modify('+ '.($this->interval * $counter).' years');
|
|
} while (2 != $nextDate->format('n'));
|
|
|
|
$this->currentDate = $nextDate;
|
|
|
|
return;
|
|
}
|
|
|
|
if (null !== $this->byWeekNo) { // byWeekNo is an array with values from -53 to -1, or 1 to 53
|
|
$dayOffsets = [];
|
|
if ($this->byDay) {
|
|
foreach ($this->byDay as $byDay) {
|
|
$dayOffsets[] = $this->dayMap[$byDay];
|
|
}
|
|
} else { // default is Monday
|
|
$dayOffsets[] = 1;
|
|
}
|
|
|
|
$currentYear = $this->currentDate->format('Y');
|
|
|
|
while (true) {
|
|
$checkDates = [];
|
|
|
|
// loop through all WeekNo and Days to check all the combinations
|
|
foreach ($this->byWeekNo as $byWeekNo) {
|
|
foreach ($dayOffsets as $dayOffset) {
|
|
$date = clone $this->currentDate;
|
|
$date->setISODate($currentYear, $byWeekNo, $dayOffset);
|
|
|
|
if ($date > $this->currentDate) {
|
|
$checkDates[] = $date;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (count($checkDates) > 0) {
|
|
$this->currentDate = min($checkDates);
|
|
|
|
return;
|
|
}
|
|
|
|
// if there is no date found, check the next year
|
|
$currentYear += $this->interval;
|
|
}
|
|
}
|
|
|
|
if (null !== $this->byYearDay) { // byYearDay is an array with values from -366 to -1, or 1 to 366
|
|
$dayOffsets = [];
|
|
if ($this->byDay) {
|
|
foreach ($this->byDay as $byDay) {
|
|
$dayOffsets[] = $this->dayMap[$byDay];
|
|
}
|
|
} else { // default is Monday-Sunday
|
|
$dayOffsets = [1, 2, 3, 4, 5, 6, 7];
|
|
}
|
|
|
|
$currentYear = $this->currentDate->format('Y');
|
|
|
|
while (true) {
|
|
$checkDates = [];
|
|
|
|
// loop through all YearDay and Days to check all the combinations
|
|
foreach ($this->byYearDay as $byYearDay) {
|
|
$date = clone $this->currentDate;
|
|
$date = $date->setDate($currentYear, 1, 1);
|
|
if ($byYearDay > 0) {
|
|
$date = $date->add(new \DateInterval('P'.$byYearDay.'D'));
|
|
} else {
|
|
$date = $date->sub(new \DateInterval('P'.abs($byYearDay).'D'));
|
|
}
|
|
|
|
if ($date > $this->currentDate && in_array($date->format('N'), $dayOffsets)) {
|
|
$checkDates[] = $date;
|
|
}
|
|
}
|
|
|
|
if (count($checkDates) > 0) {
|
|
$this->currentDate = min($checkDates);
|
|
|
|
return;
|
|
}
|
|
|
|
// if there is no date found, check the next year
|
|
$currentYear += $this->interval;
|
|
}
|
|
}
|
|
|
|
// The easiest form
|
|
$this->currentDate = $this->currentDate->modify('+'.$this->interval.' years');
|
|
|
|
return;
|
|
}
|
|
|
|
$currentMonth = $this->currentDate->format('n');
|
|
$currentYear = $this->currentDate->format('Y');
|
|
$currentDayOfMonth = $this->currentDate->format('j');
|
|
|
|
$advancedToNewMonth = false;
|
|
|
|
// If we got a byDay or getMonthDay filter, we must first expand
|
|
// further.
|
|
if ($this->byDay || $this->byMonthDay) {
|
|
while (true) {
|
|
$occurrences = $this->getMonthlyOccurrences();
|
|
|
|
foreach ($occurrences as $occurrence) {
|
|
// The first occurrence that's higher than the current
|
|
// day of the month wins.
|
|
// If we advanced to the next month or year, the first
|
|
// occurrence is always correct.
|
|
if ($occurrence > $currentDayOfMonth || $advancedToNewMonth) {
|
|
break 2;
|
|
}
|
|
}
|
|
|
|
// If we made it here, it means we need to advance to
|
|
// the next month or year.
|
|
$currentDayOfMonth = 1;
|
|
$advancedToNewMonth = true;
|
|
do {
|
|
++$currentMonth;
|
|
if ($currentMonth > 12) {
|
|
$currentYear += $this->interval;
|
|
$currentMonth = 1;
|
|
}
|
|
} while (!in_array($currentMonth, $this->byMonth));
|
|
|
|
$this->currentDate = $this->currentDate->setDate(
|
|
(int) $currentYear,
|
|
(int) $currentMonth,
|
|
(int) $currentDayOfMonth
|
|
);
|
|
}
|
|
|
|
// If we made it here, it means we got a valid occurrence
|
|
$this->currentDate = $this->currentDate->setDate(
|
|
(int) $currentYear,
|
|
(int) $currentMonth,
|
|
(int) $occurrence
|
|
);
|
|
|
|
return;
|
|
} else {
|
|
// These are the 'byMonth' rules, if there are no byDay or
|
|
// byMonthDay sub-rules.
|
|
do {
|
|
++$currentMonth;
|
|
if ($currentMonth > 12) {
|
|
$currentYear += $this->interval;
|
|
$currentMonth = 1;
|
|
}
|
|
} while (!in_array($currentMonth, $this->byMonth));
|
|
$this->currentDate = $this->currentDate->setDate(
|
|
(int) $currentYear,
|
|
(int) $currentMonth,
|
|
(int) $currentDayOfMonth
|
|
);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* }}} */
|
|
|
|
/**
|
|
* This method receives a string from an RRULE property, and populates this
|
|
* class with all the values.
|
|
*
|
|
* @param string|array $rrule
|
|
*/
|
|
protected function parseRRule($rrule)
|
|
{
|
|
if (is_string($rrule)) {
|
|
$rrule = Property\ICalendar\Recur::stringToArray($rrule);
|
|
}
|
|
|
|
foreach ($rrule as $key => $value) {
|
|
$key = strtoupper($key);
|
|
switch ($key) {
|
|
case 'FREQ':
|
|
$value = strtolower($value);
|
|
if (!in_array(
|
|
$value,
|
|
['secondly', 'minutely', 'hourly', 'daily', 'weekly', 'monthly', 'yearly']
|
|
)) {
|
|
throw new InvalidDataException('Unknown value for FREQ='.strtoupper($value));
|
|
}
|
|
$this->frequency = $value;
|
|
break;
|
|
|
|
case 'UNTIL':
|
|
$this->until = DateTimeParser::parse($value, $this->startDate->getTimezone());
|
|
|
|
// In some cases events are generated with an UNTIL=
|
|
// parameter before the actual start of the event.
|
|
//
|
|
// Not sure why this is happening. We assume that the
|
|
// intention was that the event only recurs once.
|
|
//
|
|
// So we are modifying the parameter so our code doesn't
|
|
// break.
|
|
if ($this->until < $this->startDate) {
|
|
$this->until = $this->startDate;
|
|
}
|
|
break;
|
|
|
|
case 'INTERVAL':
|
|
|
|
case 'COUNT':
|
|
$val = (int) $value;
|
|
if ($val < 1) {
|
|
throw new InvalidDataException(strtoupper($key).' in RRULE must be a positive integer!');
|
|
}
|
|
$key = strtolower($key);
|
|
$this->$key = $val;
|
|
break;
|
|
|
|
case 'BYSECOND':
|
|
$this->bySecond = (array) $value;
|
|
break;
|
|
|
|
case 'BYMINUTE':
|
|
$this->byMinute = (array) $value;
|
|
break;
|
|
|
|
case 'BYHOUR':
|
|
$this->byHour = (array) $value;
|
|
break;
|
|
|
|
case 'BYDAY':
|
|
$value = (array) $value;
|
|
foreach ($value as $part) {
|
|
if (!preg_match('#^ (-|\+)? ([1-5])? (MO|TU|WE|TH|FR|SA|SU) $# xi', $part)) {
|
|
throw new InvalidDataException('Invalid part in BYDAY clause: '.$part);
|
|
}
|
|
}
|
|
$this->byDay = $value;
|
|
break;
|
|
|
|
case 'BYMONTHDAY':
|
|
$this->byMonthDay = (array) $value;
|
|
break;
|
|
|
|
case 'BYYEARDAY':
|
|
$this->byYearDay = (array) $value;
|
|
foreach ($this->byYearDay as $byYearDay) {
|
|
if (!is_numeric($byYearDay) || (int) $byYearDay < -366 || 0 == (int) $byYearDay || (int) $byYearDay > 366) {
|
|
throw new InvalidDataException('BYYEARDAY in RRULE must have value(s) from 1 to 366, or -366 to -1!');
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'BYWEEKNO':
|
|
$this->byWeekNo = (array) $value;
|
|
foreach ($this->byWeekNo as $byWeekNo) {
|
|
if (!is_numeric($byWeekNo) || (int) $byWeekNo < -53 || 0 == (int) $byWeekNo || (int) $byWeekNo > 53) {
|
|
throw new InvalidDataException('BYWEEKNO in RRULE must have value(s) from 1 to 53, or -53 to -1!');
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'BYMONTH':
|
|
$this->byMonth = (array) $value;
|
|
foreach ($this->byMonth as $byMonth) {
|
|
if (!is_numeric($byMonth) || (int) $byMonth < 1 || (int) $byMonth > 12) {
|
|
throw new InvalidDataException('BYMONTH in RRULE must have value(s) between 1 and 12!');
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'BYSETPOS':
|
|
$this->bySetPos = (array) $value;
|
|
break;
|
|
|
|
case 'WKST':
|
|
$this->weekStart = strtoupper($value);
|
|
break;
|
|
|
|
default:
|
|
throw new InvalidDataException('Not supported: '.strtoupper($key));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Mappings between the day number and english day name.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $dayNames = [
|
|
0 => 'Sunday',
|
|
1 => 'Monday',
|
|
2 => 'Tuesday',
|
|
3 => 'Wednesday',
|
|
4 => 'Thursday',
|
|
5 => 'Friday',
|
|
6 => 'Saturday',
|
|
];
|
|
|
|
/**
|
|
* Returns all the occurrences for a monthly frequency with a 'byDay' or
|
|
* 'byMonthDay' expansion for the current month.
|
|
*
|
|
* The returned list is an array of integers with the day of month (1-31).
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function getMonthlyOccurrences()
|
|
{
|
|
$startDate = clone $this->currentDate;
|
|
|
|
$byDayResults = [];
|
|
|
|
// Our strategy is to simply go through the byDays, advance the date to
|
|
// that point and add it to the results.
|
|
if ($this->byDay) {
|
|
foreach ($this->byDay as $day) {
|
|
$dayName = $this->dayNames[$this->dayMap[substr($day, -2)]];
|
|
|
|
// Dayname will be something like 'wednesday'. Now we need to find
|
|
// all wednesdays in this month.
|
|
$dayHits = [];
|
|
|
|
// workaround for missing 'first day of the month' support in hhvm
|
|
$checkDate = new \DateTime($startDate->format('Y-m-1'));
|
|
// workaround modify always advancing the date even if the current day is a $dayName in hhvm
|
|
if ($checkDate->format('l') !== $dayName) {
|
|
$checkDate = $checkDate->modify($dayName);
|
|
}
|
|
|
|
do {
|
|
$dayHits[] = $checkDate->format('j');
|
|
$checkDate = $checkDate->modify('next '.$dayName);
|
|
} while ($checkDate->format('n') === $startDate->format('n'));
|
|
|
|
// So now we have 'all wednesdays' for month. It is however
|
|
// possible that the user only really wanted the 1st, 2nd or last
|
|
// wednesday.
|
|
if (strlen($day) > 2) {
|
|
$offset = (int) substr($day, 0, -2);
|
|
|
|
if ($offset > 0) {
|
|
// It is possible that the day does not exist, such as a
|
|
// 5th or 6th wednesday of the month.
|
|
if (isset($dayHits[$offset - 1])) {
|
|
$byDayResults[] = $dayHits[$offset - 1];
|
|
}
|
|
} else {
|
|
// if it was negative we count from the end of the array
|
|
// might not exist, fx. -5th tuesday
|
|
if (isset($dayHits[count($dayHits) + $offset])) {
|
|
$byDayResults[] = $dayHits[count($dayHits) + $offset];
|
|
}
|
|
}
|
|
} else {
|
|
// There was no counter (first, second, last wednesdays), so we
|
|
// just need to add the all to the list).
|
|
$byDayResults = array_merge($byDayResults, $dayHits);
|
|
}
|
|
}
|
|
}
|
|
|
|
$byMonthDayResults = [];
|
|
if ($this->byMonthDay) {
|
|
foreach ($this->byMonthDay as $monthDay) {
|
|
// Removing values that are out of range for this month
|
|
if ($monthDay > $startDate->format('t') ||
|
|
$monthDay < 0 - $startDate->format('t')) {
|
|
continue;
|
|
}
|
|
if ($monthDay > 0) {
|
|
$byMonthDayResults[] = $monthDay;
|
|
} else {
|
|
// Negative values
|
|
$byMonthDayResults[] = $startDate->format('t') + 1 + $monthDay;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If there was just byDay or just byMonthDay, they just specify our
|
|
// (almost) final list. If both were provided, then byDay limits the
|
|
// list.
|
|
if ($this->byMonthDay && $this->byDay) {
|
|
$result = array_intersect($byMonthDayResults, $byDayResults);
|
|
} elseif ($this->byMonthDay) {
|
|
$result = $byMonthDayResults;
|
|
} else {
|
|
$result = $byDayResults;
|
|
}
|
|
$result = array_unique($result);
|
|
sort($result, SORT_NUMERIC);
|
|
|
|
// The last thing that needs checking is the BYSETPOS. If it's set, it
|
|
// means only certain items in the set survive the filter.
|
|
if (!$this->bySetPos) {
|
|
return $result;
|
|
}
|
|
|
|
$filteredResult = [];
|
|
foreach ($this->bySetPos as $setPos) {
|
|
if ($setPos < 0) {
|
|
$setPos = count($result) + ($setPos + 1);
|
|
}
|
|
if (isset($result[$setPos - 1])) {
|
|
$filteredResult[] = $result[$setPos - 1];
|
|
}
|
|
}
|
|
|
|
sort($filteredResult, SORT_NUMERIC);
|
|
|
|
return $filteredResult;
|
|
}
|
|
|
|
/**
|
|
* Simple mapping from iCalendar day names to day numbers.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $dayMap = [
|
|
'SU' => 0,
|
|
'MO' => 1,
|
|
'TU' => 2,
|
|
'WE' => 3,
|
|
'TH' => 4,
|
|
'FR' => 5,
|
|
'SA' => 6,
|
|
];
|
|
|
|
protected function getHours()
|
|
{
|
|
$recurrenceHours = [];
|
|
foreach ($this->byHour as $byHour) {
|
|
$recurrenceHours[] = $byHour;
|
|
}
|
|
|
|
return $recurrenceHours;
|
|
}
|
|
|
|
protected function getDays()
|
|
{
|
|
$recurrenceDays = [];
|
|
foreach ($this->byDay as $byDay) {
|
|
// The day may be preceded with a positive (+n) or
|
|
// negative (-n) integer. However, this does not make
|
|
// sense in 'weekly' so we ignore it here.
|
|
$recurrenceDays[] = $this->dayMap[substr($byDay, -2)];
|
|
}
|
|
|
|
return $recurrenceDays;
|
|
}
|
|
|
|
protected function getMonths()
|
|
{
|
|
$recurrenceMonths = [];
|
|
foreach ($this->byMonth as $byMonth) {
|
|
$recurrenceMonths[] = $byMonth;
|
|
}
|
|
|
|
return $recurrenceMonths;
|
|
}
|
|
}
|