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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\CarbonConverterInterface;
use Carbon\CarbonInterface;
use Carbon\CarbonInterval;
use Carbon\Exceptions\UnitException;
use Closure;
use DateInterval;
/**
* Trait Units.
*
* Add, subtract and set units.
*/
trait Units
{
/**
* Add seconds to the instance using timestamp. Positive $value travels
* forward while negative $value travels into the past.
*
* @param string $unit
* @param int $value
*
* @return static
*/
public function addRealUnit($unit, $value = 1)
{
switch ($unit) {
// @call addRealUnit
case 'micro':
// @call addRealUnit
case 'microsecond':
/* @var CarbonInterface $this */
$diff = $this->microsecond + $value;
$time = $this->getTimestamp();
$seconds = (int) floor($diff / static::MICROSECONDS_PER_SECOND);
$time += $seconds;
$diff -= $seconds * static::MICROSECONDS_PER_SECOND;
$microtime = str_pad("$diff", 6, '0', STR_PAD_LEFT);
$tz = $this->tz;
return $this->tz('UTC')->modify("@$time.$microtime")->tz($tz);
// @call addRealUnit
case 'milli':
// @call addRealUnit
case 'millisecond':
return $this->addRealUnit('microsecond', $value * static::MICROSECONDS_PER_MILLISECOND);
break;
// @call addRealUnit
case 'second':
break;
// @call addRealUnit
case 'minute':
$value *= static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'hour':
$value *= static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'day':
$value *= static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'week':
$value *= static::DAYS_PER_WEEK * static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'month':
$value *= 30 * static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'quarter':
$value *= static::MONTHS_PER_QUARTER * 30 * static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'year':
$value *= 365 * static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'decade':
$value *= static::YEARS_PER_DECADE * 365 * static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'century':
$value *= static::YEARS_PER_CENTURY * 365 * static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
// @call addRealUnit
case 'millennium':
$value *= static::YEARS_PER_MILLENNIUM * 365 * static::HOURS_PER_DAY * static::MINUTES_PER_HOUR * static::SECONDS_PER_MINUTE;
break;
default:
if ($this->localStrictModeEnabled ?? static::isStrictModeEnabled()) {
throw new UnitException("Invalid unit for real timestamp add/sub: '$unit'");
}
return $this;
}
/* @var CarbonInterface $this */
return $this->setTimestamp((int) ($this->getTimestamp() + $value));
}
public function subRealUnit($unit, $value = 1)
{
return $this->addRealUnit($unit, -$value);
}
/**
* Returns true if a property can be changed via setter.
*
* @param string $unit
*
* @return bool
*/
public static function isModifiableUnit($unit)
{
static $modifiableUnits = [
// @call addUnit
'millennium',
// @call addUnit
'century',
// @call addUnit
'decade',
// @call addUnit
'quarter',
// @call addUnit
'week',
// @call addUnit
'weekday',
];
return \in_array($unit, $modifiableUnits) || \in_array($unit, static::$units);
}
/**
* Call native PHP DateTime/DateTimeImmutable add() method.
*
* @param DateInterval $interval
*
* @return static
*/
public function rawAdd(DateInterval $interval)
{
return parent::add($interval);
}
/**
* Add given units or interval to the current instance.
*
* @example $date->add('hour', 3)
* @example $date->add(15, 'days')
* @example $date->add(CarbonInterval::days(4))
*
* @param string|DateInterval|Closure|CarbonConverterInterface $unit
* @param int $value
* @param bool|null $overflow
*
* @return static
*/
public function add($unit, $value = 1, $overflow = null)
{
if (\is_string($unit) && \func_num_args() === 1) {
$unit = CarbonInterval::make($unit);
}
if ($unit instanceof CarbonConverterInterface) {
return $this->resolveCarbon($unit->convertDate($this, false));
}
if ($unit instanceof Closure) {
return $this->resolveCarbon($unit($this, false));
}
if ($unit instanceof DateInterval) {
return parent::add($unit);
}
if (is_numeric($unit)) {
[$value, $unit] = [$unit, $value];
}
return $this->addUnit($unit, $value, $overflow);
}
/**
* Add given units to the current instance.
*
* @param string $unit
* @param int $value
* @param bool|null $overflow
*
* @return static
*/
public function addUnit($unit, $value = 1, $overflow = null)
{
$date = $this;
if (!is_numeric($value) || !\floatval($value)) {
return $date->isMutable() ? $date : $date->copy();
}
$metaUnits = [
'millennium' => [static::YEARS_PER_MILLENNIUM, 'year'],
'century' => [static::YEARS_PER_CENTURY, 'year'],
'decade' => [static::YEARS_PER_DECADE, 'year'],
'quarter' => [static::MONTHS_PER_QUARTER, 'month'],
];
if (isset($metaUnits[$unit])) {
[$factor, $unit] = $metaUnits[$unit];
$value *= $factor;
}
if ($unit === 'weekday') {
$weekendDays = static::getWeekendDays();
if ($weekendDays !== [static::SATURDAY, static::SUNDAY]) {
$absoluteValue = abs($value);
$sign = $value / max(1, $absoluteValue);
$weekDaysCount = 7 - min(6, \count(array_unique($weekendDays)));
$weeks = floor($absoluteValue / $weekDaysCount);
for ($diff = $absoluteValue % $weekDaysCount; $diff; $diff--) {
/** @var static $date */
$date = $date->addDays($sign);
while (\in_array($date->dayOfWeek, $weekendDays)) {
$date = $date->addDays($sign);
}
}
$value = $weeks * $sign;
$unit = 'week';
}
$timeString = $date->toTimeString();
} elseif ($canOverflow = \in_array($unit, [
'month',
'year',
]) && ($overflow === false || (
$overflow === null &&
($ucUnit = ucfirst($unit).'s') &&
!($this->{'local'.$ucUnit.'Overflow'} ?? static::{'shouldOverflow'.$ucUnit}())
))) {
$day = $date->day;
}
$value = (int) $value;
if ($unit === 'milli' || $unit === 'millisecond') {
$unit = 'microsecond';
$value *= static::MICROSECONDS_PER_MILLISECOND;
}
// Work-around for bug https://bugs.php.net/bug.php?id=75642
if ($unit === 'micro' || $unit === 'microsecond') {
$microseconds = $this->micro + $value;
$second = (int) floor($microseconds / static::MICROSECONDS_PER_SECOND);
$microseconds %= static::MICROSECONDS_PER_SECOND;
if ($microseconds < 0) {
$microseconds += static::MICROSECONDS_PER_SECOND;
}
$date = $date->microseconds($microseconds);
$unit = 'second';
$value = $second;
}
$date = $date->modify("$value $unit");
if (isset($timeString)) {
return $date->setTimeFromTimeString($timeString);
}
if (isset($canOverflow, $day) && $canOverflow && $day !== $date->day) {
$date = $date->modify('last day of previous month');
}
return $date;
}
/**
* Subtract given units to the current instance.
*
* @param string $unit
* @param int $value
* @param bool|null $overflow
*
* @return static
*/
public function subUnit($unit, $value = 1, $overflow = null)
{
return $this->addUnit($unit, -$value, $overflow);
}
/**
* Call native PHP DateTime/DateTimeImmutable sub() method.
*
* @param DateInterval $interval
*
* @return static
*/
public function rawSub(DateInterval $interval)
{
return parent::sub($interval);
}
/**
* Subtract given units or interval to the current instance.
*
* @example $date->sub('hour', 3)
* @example $date->sub(15, 'days')
* @example $date->sub(CarbonInterval::days(4))
*
* @param string|DateInterval|Closure|CarbonConverterInterface $unit
* @param int $value
* @param bool|null $overflow
*
* @return static
*/
public function sub($unit, $value = 1, $overflow = null)
{
if (\is_string($unit) && \func_num_args() === 1) {
$unit = CarbonInterval::make($unit);
}
if ($unit instanceof CarbonConverterInterface) {
return $this->resolveCarbon($unit->convertDate($this, true));
}
if ($unit instanceof Closure) {
return $this->resolveCarbon($unit($this, true));
}
if ($unit instanceof DateInterval) {
return parent::sub($unit);
}
if (is_numeric($unit)) {
[$value, $unit] = [$unit, $value];
}
return $this->addUnit($unit, -\floatval($value), $overflow);
}
/**
* Subtract given units or interval to the current instance.
*
* @see sub()
*
* @param string|DateInterval $unit
* @param int $value
* @param bool|null $overflow
*
* @return static
*/
public function subtract($unit, $value = 1, $overflow = null)
{
if (\is_string($unit) && \func_num_args() === 1) {
$unit = CarbonInterval::make($unit);
}
return $this->sub($unit, $value, $overflow);
}
}