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<?php
/**
* This file is part of the Carbon package.
*
* (c) Brian Nesbitt <brian@nesbot.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Carbon\Traits;
use Carbon\CarbonInterface;
use ReturnTypeWillChange;
/**
* Trait Modifiers.
*
* Returns dates relative to current date using modifier short-hand.
*/
trait Modifiers
{
/**
* Midday/noon hour.
*
* @var int
*/
protected static $midDayAt = 12;
/**
* get midday/noon hour
*
* @return int
*/
public static function getMidDayAt()
{
return static::$midDayAt;
}
/**
* @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
* You should rather consider mid-day is always 12pm, then if you need to test if it's an other
* hour, test it explicitly:
* $date->format('G') == 13
* or to set explicitly to a given hour:
* $date->setTime(13, 0, 0, 0)
*
* Set midday/noon hour
*
* @param int $hour midday hour
*
* @return void
*/
public static function setMidDayAt($hour)
{
static::$midDayAt = $hour;
}
/**
* Modify to midday, default to self::$midDayAt
*
* @return static
*/
public function midDay()
{
return $this->setTime(static::$midDayAt, 0, 0, 0);
}
/**
* Modify to the next occurrence of a given modifier such as a day of
* the week. If no modifier is provided, modify to the next occurrence
* of the current day of the week. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param string|int|null $modifier
*
* @return static
*/
public function next($modifier = null)
{
if ($modifier === null) {
$modifier = $this->dayOfWeek;
}
return $this->change(
'next '.(\is_string($modifier) ? $modifier : static::$days[$modifier])
);
}
/**
* Go forward or backward to the next week- or weekend-day.
*
* @param bool $weekday
* @param bool $forward
*
* @return static
*/
private function nextOrPreviousDay($weekday = true, $forward = true)
{
/** @var CarbonInterface $date */
$date = $this;
$step = $forward ? 1 : -1;
do {
$date = $date->addDays($step);
} while ($weekday ? $date->isWeekend() : $date->isWeekday());
return $date;
}
/**
* Go forward to the next weekday.
*
* @return static
*/
public function nextWeekday()
{
return $this->nextOrPreviousDay();
}
/**
* Go backward to the previous weekday.
*
* @return static
*/
public function previousWeekday()
{
return $this->nextOrPreviousDay(true, false);
}
/**
* Go forward to the next weekend day.
*
* @return static
*/
public function nextWeekendDay()
{
return $this->nextOrPreviousDay(false);
}
/**
* Go backward to the previous weekend day.
*
* @return static
*/
public function previousWeekendDay()
{
return $this->nextOrPreviousDay(false, false);
}
/**
* Modify to the previous occurrence of a given modifier such as a day of
* the week. If no dayOfWeek is provided, modify to the previous occurrence
* of the current day of the week. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param string|int|null $modifier
*
* @return static
*/
public function previous($modifier = null)
{
if ($modifier === null) {
$modifier = $this->dayOfWeek;
}
return $this->change(
'last '.(\is_string($modifier) ? $modifier : static::$days[$modifier])
);
}
/**
* Modify to the first occurrence of a given day of the week
* in the current month. If no dayOfWeek is provided, modify to the
* first day of the current month. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function firstOfMonth($dayOfWeek = null)
{
$date = $this->startOfDay();
if ($dayOfWeek === null) {
return $date->day(1);
}
return $date->modify('first '.static::$days[$dayOfWeek].' of '.$date->rawFormat('F').' '.$date->year);
}
/**
* Modify to the last occurrence of a given day of the week
* in the current month. If no dayOfWeek is provided, modify to the
* last day of the current month. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function lastOfMonth($dayOfWeek = null)
{
$date = $this->startOfDay();
if ($dayOfWeek === null) {
return $date->day($date->daysInMonth);
}
return $date->modify('last '.static::$days[$dayOfWeek].' of '.$date->rawFormat('F').' '.$date->year);
}
/**
* Modify to the given occurrence of a given day of the week
* in the current month. If the calculated occurrence is outside the scope
* of the current month, then return false and no modifications are made.
* Use the supplied constants to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int $nth
* @param int $dayOfWeek
*
* @return mixed
*/
public function nthOfMonth($nth, $dayOfWeek)
{
$date = $this->avoidMutation()->firstOfMonth();
$check = $date->rawFormat('Y-m');
$date = $date->modify('+'.$nth.' '.static::$days[$dayOfWeek]);
return $date->rawFormat('Y-m') === $check ? $this->modify((string) $date) : false;
}
/**
* Modify to the first occurrence of a given day of the week
* in the current quarter. If no dayOfWeek is provided, modify to the
* first day of the current quarter. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek day of the week default null
*
* @return static
*/
public function firstOfQuarter($dayOfWeek = null)
{
return $this->setDate($this->year, $this->quarter * static::MONTHS_PER_QUARTER - 2, 1)->firstOfMonth($dayOfWeek);
}
/**
* Modify to the last occurrence of a given day of the week
* in the current quarter. If no dayOfWeek is provided, modify to the
* last day of the current quarter. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek day of the week default null
*
* @return static
*/
public function lastOfQuarter($dayOfWeek = null)
{
return $this->setDate($this->year, $this->quarter * static::MONTHS_PER_QUARTER, 1)->lastOfMonth($dayOfWeek);
}
/**
* Modify to the given occurrence of a given day of the week
* in the current quarter. If the calculated occurrence is outside the scope
* of the current quarter, then return false and no modifications are made.
* Use the supplied constants to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int $nth
* @param int $dayOfWeek
*
* @return mixed
*/
public function nthOfQuarter($nth, $dayOfWeek)
{
$date = $this->avoidMutation()->day(1)->month($this->quarter * static::MONTHS_PER_QUARTER);
$lastMonth = $date->month;
$year = $date->year;
$date = $date->firstOfQuarter()->modify('+'.$nth.' '.static::$days[$dayOfWeek]);
return ($lastMonth < $date->month || $year !== $date->year) ? false : $this->modify((string) $date);
}
/**
* Modify to the first occurrence of a given day of the week
* in the current year. If no dayOfWeek is provided, modify to the
* first day of the current year. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek day of the week default null
*
* @return static
*/
public function firstOfYear($dayOfWeek = null)
{
return $this->month(1)->firstOfMonth($dayOfWeek);
}
/**
* Modify to the last occurrence of a given day of the week
* in the current year. If no dayOfWeek is provided, modify to the
* last day of the current year. Use the supplied constants
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek day of the week default null
*
* @return static
*/
public function lastOfYear($dayOfWeek = null)
{
return $this->month(static::MONTHS_PER_YEAR)->lastOfMonth($dayOfWeek);
}
/**
* Modify to the given occurrence of a given day of the week
* in the current year. If the calculated occurrence is outside the scope
* of the current year, then return false and no modifications are made.
* Use the supplied constants to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int $nth
* @param int $dayOfWeek
*
* @return mixed
*/
public function nthOfYear($nth, $dayOfWeek)
{
$date = $this->avoidMutation()->firstOfYear()->modify('+'.$nth.' '.static::$days[$dayOfWeek]);
return $this->year === $date->year ? $this->modify((string) $date) : false;
}
/**
* Modify the current instance to the average of a given instance (default now) and the current instance
* (second-precision).
*
* @param \Carbon\Carbon|\DateTimeInterface|null $date
*
* @return static
*/
public function average($date = null)
{
return $this->addRealMicroseconds((int) ($this->diffInRealMicroseconds($this->resolveCarbon($date), false) / 2));
}
/**
* Get the closest date from the instance (second-precision).
*
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date1
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date2
*
* @return static
*/
public function closest($date1, $date2)
{
return $this->diffInRealMicroseconds($date1) < $this->diffInRealMicroseconds($date2) ? $date1 : $date2;
}
/**
* Get the farthest date from the instance (second-precision).
*
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date1
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date2
*
* @return static
*/
public function farthest($date1, $date2)
{
return $this->diffInRealMicroseconds($date1) > $this->diffInRealMicroseconds($date2) ? $date1 : $date2;
}
/**
* Get the minimum instance between a given instance (default now) and the current instance.
*
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date
*
* @return static
*/
public function min($date = null)
{
$date = $this->resolveCarbon($date);
return $this->lt($date) ? $this : $date;
}
/**
* Get the minimum instance between a given instance (default now) and the current instance.
*
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date
*
* @see min()
*
* @return static
*/
public function minimum($date = null)
{
return $this->min($date);
}
/**
* Get the maximum instance between a given instance (default now) and the current instance.
*
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date
*
* @return static
*/
public function max($date = null)
{
$date = $this->resolveCarbon($date);
return $this->gt($date) ? $this : $date;
}
/**
* Get the maximum instance between a given instance (default now) and the current instance.
*
* @param \Carbon\Carbon|\DateTimeInterface|mixed $date
*
* @see max()
*
* @return static
*/
public function maximum($date = null)
{
return $this->max($date);
}
/**
* Calls \DateTime::modify if mutable or \DateTimeImmutable::modify else.
*
* @see https://php.net/manual/en/datetime.modify.php
*
* @return static|false
*/
#[ReturnTypeWillChange]
public function modify($modify)
{
return parent::modify((string) $modify);
}
/**
* Similar to native modify() method of DateTime but can handle more grammars.
*
* @example
* ```
* echo Carbon::now()->change('next 2pm');
* ```
*
* @link https://php.net/manual/en/datetime.modify.php
*
* @param string $modifier
*
* @return static
*/
public function change($modifier)
{
return $this->modify(preg_replace_callback('/^(next|previous|last)\s+(\d{1,2}(h|am|pm|:\d{1,2}(:\d{1,2})?))$/i', function ($match) {
$match[2] = str_replace('h', ':00', $match[2]);
$test = $this->avoidMutation()->modify($match[2]);
$method = $match[1] === 'next' ? 'lt' : 'gt';
$match[1] = $test->$method($this) ? $match[1].' day' : 'today';
return $match[1].' '.$match[2];
}, strtr(trim($modifier), [
' at ' => ' ',
'just now' => 'now',
'after tomorrow' => 'tomorrow +1 day',
'before yesterday' => 'yesterday -1 day',
])));
}
}
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