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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 BadMethodCallException;
use Carbon\CarbonInterface;
use Carbon\Exceptions\BadComparisonUnitException;
use InvalidArgumentException;

/**
 * Trait Comparison.
 *
 * Comparison utils and testers. All the following methods return booleans.
 * nowWithSameTz
 *
 * Depends on the following methods:
 *
 * @method static        resolveCarbon($date)
 * @method static        copy()
 * @method static        nowWithSameTz()
 * @method static static yesterday($timezone = null)
 * @method static static tomorrow($timezone = null)
 */
trait Comparison
{
    /** @var bool */
    protected $endOfTime = false;

    /** @var bool */
    protected $startOfTime = false;

    /**
     * Determines if the instance is equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->eq('2018-07-25 12:45:16'); // true
     * Carbon::parse('2018-07-25 12:45:16')->eq(Carbon::parse('2018-07-25 12:45:16')); // true
     * Carbon::parse('2018-07-25 12:45:16')->eq('2018-07-25 12:45:17'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see equalTo()
     *
     * @return bool
     */
    public function eq($date): bool
    {
        return $this->equalTo($date);
    }

    /**
     * Determines if the instance is equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->equalTo('2018-07-25 12:45:16'); // true
     * Carbon::parse('2018-07-25 12:45:16')->equalTo(Carbon::parse('2018-07-25 12:45:16')); // true
     * Carbon::parse('2018-07-25 12:45:16')->equalTo('2018-07-25 12:45:17'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @return bool
     */
    public function equalTo($date): bool
    {
        $this->discourageNull($date);
        $this->discourageBoolean($date);

        return $this == $this->resolveCarbon($date);
    }

    /**
     * Determines if the instance is not equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->ne('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->ne(Carbon::parse('2018-07-25 12:45:16')); // false
     * Carbon::parse('2018-07-25 12:45:16')->ne('2018-07-25 12:45:17'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see notEqualTo()
     *
     * @return bool
     */
    public function ne($date): bool
    {
        return $this->notEqualTo($date);
    }

    /**
     * Determines if the instance is not equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->notEqualTo('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->notEqualTo(Carbon::parse('2018-07-25 12:45:16')); // false
     * Carbon::parse('2018-07-25 12:45:16')->notEqualTo('2018-07-25 12:45:17'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @return bool
     */
    public function notEqualTo($date): bool
    {
        return !$this->equalTo($date);
    }

    /**
     * Determines if the instance is greater (after) than another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->gt('2018-07-25 12:45:15'); // true
     * Carbon::parse('2018-07-25 12:45:16')->gt('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->gt('2018-07-25 12:45:17'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see greaterThan()
     *
     * @return bool
     */
    public function gt($date): bool
    {
        return $this->greaterThan($date);
    }

    /**
     * Determines if the instance is greater (after) than another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->greaterThan('2018-07-25 12:45:15'); // true
     * Carbon::parse('2018-07-25 12:45:16')->greaterThan('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->greaterThan('2018-07-25 12:45:17'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @return bool
     */
    public function greaterThan($date): bool
    {
        $this->discourageNull($date);
        $this->discourageBoolean($date);

        return $this > $this->resolveCarbon($date);
    }

    /**
     * Determines if the instance is greater (after) than another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->isAfter('2018-07-25 12:45:15'); // true
     * Carbon::parse('2018-07-25 12:45:16')->isAfter('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->isAfter('2018-07-25 12:45:17'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see greaterThan()
     *
     * @return bool
     */
    public function isAfter($date): bool
    {
        return $this->greaterThan($date);
    }

    /**
     * Determines if the instance is greater (after) than or equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->gte('2018-07-25 12:45:15'); // true
     * Carbon::parse('2018-07-25 12:45:16')->gte('2018-07-25 12:45:16'); // true
     * Carbon::parse('2018-07-25 12:45:16')->gte('2018-07-25 12:45:17'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see greaterThanOrEqualTo()
     *
     * @return bool
     */
    public function gte($date): bool
    {
        return $this->greaterThanOrEqualTo($date);
    }

    /**
     * Determines if the instance is greater (after) than or equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->greaterThanOrEqualTo('2018-07-25 12:45:15'); // true
     * Carbon::parse('2018-07-25 12:45:16')->greaterThanOrEqualTo('2018-07-25 12:45:16'); // true
     * Carbon::parse('2018-07-25 12:45:16')->greaterThanOrEqualTo('2018-07-25 12:45:17'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @return bool
     */
    public function greaterThanOrEqualTo($date): bool
    {
        $this->discourageNull($date);
        $this->discourageBoolean($date);

        return $this >= $this->resolveCarbon($date);
    }

    /**
     * Determines if the instance is less (before) than another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->lt('2018-07-25 12:45:15'); // false
     * Carbon::parse('2018-07-25 12:45:16')->lt('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->lt('2018-07-25 12:45:17'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see lessThan()
     *
     * @return bool
     */
    public function lt($date): bool
    {
        return $this->lessThan($date);
    }

    /**
     * Determines if the instance is less (before) than another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->lessThan('2018-07-25 12:45:15'); // false
     * Carbon::parse('2018-07-25 12:45:16')->lessThan('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->lessThan('2018-07-25 12:45:17'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @return bool
     */
    public function lessThan($date): bool
    {
        $this->discourageNull($date);
        $this->discourageBoolean($date);

        return $this < $this->resolveCarbon($date);
    }

    /**
     * Determines if the instance is less (before) than another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->isBefore('2018-07-25 12:45:15'); // false
     * Carbon::parse('2018-07-25 12:45:16')->isBefore('2018-07-25 12:45:16'); // false
     * Carbon::parse('2018-07-25 12:45:16')->isBefore('2018-07-25 12:45:17'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see lessThan()
     *
     * @return bool
     */
    public function isBefore($date): bool
    {
        return $this->lessThan($date);
    }

    /**
     * Determines if the instance is less (before) or equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->lte('2018-07-25 12:45:15'); // false
     * Carbon::parse('2018-07-25 12:45:16')->lte('2018-07-25 12:45:16'); // true
     * Carbon::parse('2018-07-25 12:45:16')->lte('2018-07-25 12:45:17'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @see lessThanOrEqualTo()
     *
     * @return bool
     */
    public function lte($date): bool
    {
        return $this->lessThanOrEqualTo($date);
    }

    /**
     * Determines if the instance is less (before) or equal to another
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25 12:45:16')->lessThanOrEqualTo('2018-07-25 12:45:15'); // false
     * Carbon::parse('2018-07-25 12:45:16')->lessThanOrEqualTo('2018-07-25 12:45:16'); // true
     * Carbon::parse('2018-07-25 12:45:16')->lessThanOrEqualTo('2018-07-25 12:45:17'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date
     *
     * @return bool
     */
    public function lessThanOrEqualTo($date): bool
    {
        $this->discourageNull($date);
        $this->discourageBoolean($date);

        return $this <= $this->resolveCarbon($date);
    }

    /**
     * Determines if the instance is between two others.
     *
     * The third argument allow you to specify if bounds are included or not (true by default)
     * but for when you including/excluding bounds may produce different results in your application,
     * we recommend to use the explicit methods ->betweenIncluded() or ->betweenExcluded() instead.
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25')->between('2018-07-14', '2018-08-01'); // true
     * Carbon::parse('2018-07-25')->between('2018-08-01', '2018-08-20'); // false
     * Carbon::parse('2018-07-25')->between('2018-07-25', '2018-08-01'); // true
     * Carbon::parse('2018-07-25')->between('2018-07-25', '2018-08-01', false); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date1
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date2
     * @param bool                                    $equal Indicates if an equal to comparison should be done
     *
     * @return bool
     */
    public function between($date1, $date2, $equal = true): bool
    {
        $date1 = $this->resolveCarbon($date1);
        $date2 = $this->resolveCarbon($date2);

        if ($date1->greaterThan($date2)) {
            [$date1, $date2] = [$date2, $date1];
        }

        if ($equal) {
            return $this >= $date1 && $this <= $date2;
        }

        return $this > $date1 && $this < $date2;
    }

    /**
     * Determines if the instance is between two others, bounds included.
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25')->betweenIncluded('2018-07-14', '2018-08-01'); // true
     * Carbon::parse('2018-07-25')->betweenIncluded('2018-08-01', '2018-08-20'); // false
     * Carbon::parse('2018-07-25')->betweenIncluded('2018-07-25', '2018-08-01'); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date1
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date2
     *
     * @return bool
     */
    public function betweenIncluded($date1, $date2): bool
    {
        return $this->between($date1, $date2, true);
    }

    /**
     * Determines if the instance is between two others, bounds excluded.
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25')->betweenExcluded('2018-07-14', '2018-08-01'); // true
     * Carbon::parse('2018-07-25')->betweenExcluded('2018-08-01', '2018-08-20'); // false
     * Carbon::parse('2018-07-25')->betweenExcluded('2018-07-25', '2018-08-01'); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date1
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date2
     *
     * @return bool
     */
    public function betweenExcluded($date1, $date2): bool
    {
        return $this->between($date1, $date2, false);
    }

    /**
     * Determines if the instance is between two others
     *
     * @example
     * ```
     * Carbon::parse('2018-07-25')->isBetween('2018-07-14', '2018-08-01'); // true
     * Carbon::parse('2018-07-25')->isBetween('2018-08-01', '2018-08-20'); // false
     * Carbon::parse('2018-07-25')->isBetween('2018-07-25', '2018-08-01'); // true
     * Carbon::parse('2018-07-25')->isBetween('2018-07-25', '2018-08-01', false); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date1
     * @param \Carbon\Carbon|\DateTimeInterface|mixed $date2
     * @param bool                                    $equal Indicates if an equal to comparison should be done
     *
     * @return bool
     */
    public function isBetween($date1, $date2, $equal = true): bool
    {
        return $this->between($date1, $date2, $equal);
    }

    /**
     * Determines if the instance is a weekday.
     *
     * @example
     * ```
     * Carbon::parse('2019-07-14')->isWeekday(); // false
     * Carbon::parse('2019-07-15')->isWeekday(); // true
     * ```
     *
     * @return bool
     */
    public function isWeekday()
    {
        return !$this->isWeekend();
    }

    /**
     * Determines if the instance is a weekend day.
     *
     * @example
     * ```
     * Carbon::parse('2019-07-14')->isWeekend(); // true
     * Carbon::parse('2019-07-15')->isWeekend(); // false
     * ```
     *
     * @return bool
     */
    public function isWeekend()
    {
        return \in_array($this->dayOfWeek, static::$weekendDays, true);
    }

    /**
     * Determines if the instance is yesterday.
     *
     * @example
     * ```
     * Carbon::yesterday()->isYesterday(); // true
     * Carbon::tomorrow()->isYesterday(); // false
     * ```
     *
     * @return bool
     */
    public function isYesterday()
    {
        return $this->toDateString() === static::yesterday($this->getTimezone())->toDateString();
    }

    /**
     * Determines if the instance is today.
     *
     * @example
     * ```
     * Carbon::today()->isToday(); // true
     * Carbon::tomorrow()->isToday(); // false
     * ```
     *
     * @return bool
     */
    public function isToday()
    {
        return $this->toDateString() === $this->nowWithSameTz()->toDateString();
    }

    /**
     * Determines if the instance is tomorrow.
     *
     * @example
     * ```
     * Carbon::tomorrow()->isTomorrow(); // true
     * Carbon::yesterday()->isTomorrow(); // false
     * ```
     *
     * @return bool
     */
    public function isTomorrow()
    {
        return $this->toDateString() === static::tomorrow($this->getTimezone())->toDateString();
    }

    /**
     * Determines if the instance is in the future, ie. greater (after) than now.
     *
     * @example
     * ```
     * Carbon::now()->addHours(5)->isFuture(); // true
     * Carbon::now()->subHours(5)->isFuture(); // false
     * ```
     *
     * @return bool
     */
    public function isFuture()
    {
        return $this->greaterThan($this->nowWithSameTz());
    }

    /**
     * Determines if the instance is in the past, ie. less (before) than now.
     *
     * @example
     * ```
     * Carbon::now()->subHours(5)->isPast(); // true
     * Carbon::now()->addHours(5)->isPast(); // false
     * ```
     *
     * @return bool
     */
    public function isPast()
    {
        return $this->lessThan($this->nowWithSameTz());
    }

    /**
     * Determines if the instance is a leap year.
     *
     * @example
     * ```
     * Carbon::parse('2020-01-01')->isLeapYear(); // true
     * Carbon::parse('2019-01-01')->isLeapYear(); // false
     * ```
     *
     * @return bool
     */
    public function isLeapYear()
    {
        return $this->rawFormat('L') === '1';
    }

    /**
     * Determines if the instance is a long year (using calendar year).
     *
     * ⚠️ This method completely ignores month and day to use the numeric year number,
     * it's not correct if the exact date matters. For instance as `2019-12-30` is already
     * in the first week of the 2020 year, if you want to know from this date if ISO week
     * year 2020 is a long year, use `isLongIsoYear` instead.
     *
     * @example
     * ```
     * Carbon::create(2015)->isLongYear(); // true
     * Carbon::create(2016)->isLongYear(); // false
     * ```
     *
     * @see https://en.wikipedia.org/wiki/ISO_8601#Week_dates
     *
     * @return bool
     */
    public function isLongYear()
    {
        return static::create($this->year, 12, 28, 0, 0, 0, $this->tz)->weekOfYear === 53;
    }

    /**
     * Determines if the instance is a long year (using ISO 8601 year).
     *
     * @example
     * ```
     * Carbon::parse('2015-01-01')->isLongIsoYear(); // true
     * Carbon::parse('2016-01-01')->isLongIsoYear(); // true
     * Carbon::parse('2016-01-03')->isLongIsoYear(); // false
     * Carbon::parse('2019-12-29')->isLongIsoYear(); // false
     * Carbon::parse('2019-12-30')->isLongIsoYear(); // true
     * ```
     *
     * @see https://en.wikipedia.org/wiki/ISO_8601#Week_dates
     *
     * @return bool
     */
    public function isLongIsoYear()
    {
        return static::create($this->isoWeekYear, 12, 28, 0, 0, 0, $this->tz)->weekOfYear === 53;
    }

    /**
     * Compares the formatted values of the two dates.
     *
     * @example
     * ```
     * Carbon::parse('2019-06-13')->isSameAs('Y-d', Carbon::parse('2019-12-13')); // true
     * Carbon::parse('2019-06-13')->isSameAs('Y-d', Carbon::parse('2019-06-14')); // false
     * ```
     *
     * @param string                                        $format date formats to compare.
     * @param \Carbon\Carbon|\DateTimeInterface|string|null $date   instance to compare with or null to use current day.
     *
     * @return bool
     */
    public function isSameAs($format, $date = null)
    {
        return $this->rawFormat($format) === $this->resolveCarbon($date)->rawFormat($format);
    }

    /**
     * Determines if the instance is in the current unit given.
     *
     * @example
     * ```
     * Carbon::parse('2019-01-13')->isSameUnit('year', Carbon::parse('2019-12-25')); // true
     * Carbon::parse('2018-12-13')->isSameUnit('year', Carbon::parse('2019-12-25')); // false
     * ```
     *
     * @param string                                 $unit singular unit string
     * @param \Carbon\Carbon|\DateTimeInterface|null $date instance to compare with or null to use current day.
     *
     * @throws BadComparisonUnitException
     *
     * @return bool
     */
    public function isSameUnit($unit, $date = null)
    {
        $units = [
            // @call isSameUnit
            'year' => 'Y',
            // @call isSameUnit
            'week' => 'o-W',
            // @call isSameUnit
            'day' => 'Y-m-d',
            // @call isSameUnit
            'hour' => 'Y-m-d H',
            // @call isSameUnit
            'minute' => 'Y-m-d H:i',
            // @call isSameUnit
            'second' => 'Y-m-d H:i:s',
            // @call isSameUnit
            'micro' => 'Y-m-d H:i:s.u',
            // @call isSameUnit
            'microsecond' => 'Y-m-d H:i:s.u',
        ];

        if (isset($units[$unit])) {
            return $this->isSameAs($units[$unit], $date);
        }

        if (isset($this->$unit)) {
            return $this->resolveCarbon($date)->$unit === $this->$unit;
        }

        if ($this->localStrictModeEnabled ?? static::isStrictModeEnabled()) {
            throw new BadComparisonUnitException($unit);
        }

        return false;
    }

    /**
     * Determines if the instance is in the current unit given.
     *
     * @example
     * ```
     * Carbon::now()->isCurrentUnit('hour'); // true
     * Carbon::now()->subHours(2)->isCurrentUnit('hour'); // false
     * ```
     *
     * @param string $unit The unit to test.
     *
     * @throws BadMethodCallException
     *
     * @return bool
     */
    public function isCurrentUnit($unit)
    {
        return $this->{'isSame'.ucfirst($unit)}();
    }

    /**
     * Checks if the passed in date is in the same quarter as the instance quarter (and year if needed).
     *
     * @example
     * ```
     * Carbon::parse('2019-01-12')->isSameQuarter(Carbon::parse('2019-03-01')); // true
     * Carbon::parse('2019-01-12')->isSameQuarter(Carbon::parse('2019-04-01')); // false
     * Carbon::parse('2019-01-12')->isSameQuarter(Carbon::parse('2018-03-01')); // false
     * Carbon::parse('2019-01-12')->isSameQuarter(Carbon::parse('2018-03-01'), false); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|string|null $date       The instance to compare with or null to use current day.
     * @param bool                                          $ofSameYear Check if it is the same month in the same year.
     *
     * @return bool
     */
    public function isSameQuarter($date = null, $ofSameYear = true)
    {
        $date = $this->resolveCarbon($date);

        return $this->quarter === $date->quarter && (!$ofSameYear || $this->isSameYear($date));
    }

    /**
     * Checks if the passed in date is in the same month as the instance´s month.
     *
     * @example
     * ```
     * Carbon::parse('2019-01-12')->isSameMonth(Carbon::parse('2019-01-01')); // true
     * Carbon::parse('2019-01-12')->isSameMonth(Carbon::parse('2019-02-01')); // false
     * Carbon::parse('2019-01-12')->isSameMonth(Carbon::parse('2018-01-01')); // false
     * Carbon::parse('2019-01-12')->isSameMonth(Carbon::parse('2018-01-01'), false); // true
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|null $date       The instance to compare with or null to use the current date.
     * @param bool                                   $ofSameYear Check if it is the same month in the same year.
     *
     * @return bool
     */
    public function isSameMonth($date = null, $ofSameYear = true)
    {
        return $this->isSameAs($ofSameYear ? 'Y-m' : 'm', $date);
    }

    /**
     * Checks if this day is a specific day of the week.
     *
     * @example
     * ```
     * Carbon::parse('2019-07-17')->isDayOfWeek(Carbon::WEDNESDAY); // true
     * Carbon::parse('2019-07-17')->isDayOfWeek(Carbon::FRIDAY); // false
     * Carbon::parse('2019-07-17')->isDayOfWeek('Wednesday'); // true
     * Carbon::parse('2019-07-17')->isDayOfWeek('Friday'); // false
     * ```
     *
     * @param int $dayOfWeek
     *
     * @return bool
     */
    public function isDayOfWeek($dayOfWeek)
    {
        if (\is_string($dayOfWeek) && \defined($constant = static::class.'::'.strtoupper($dayOfWeek))) {
            $dayOfWeek = \constant($constant);
        }

        return $this->dayOfWeek === $dayOfWeek;
    }

    /**
     * Check if its the birthday. Compares the date/month values of the two dates.
     *
     * @example
     * ```
     * Carbon::now()->subYears(5)->isBirthday(); // true
     * Carbon::now()->subYears(5)->subDay()->isBirthday(); // false
     * Carbon::parse('2019-06-05')->isBirthday(Carbon::parse('2001-06-05')); // true
     * Carbon::parse('2019-06-05')->isBirthday(Carbon::parse('2001-06-06')); // false
     * ```
     *
     * @param \Carbon\Carbon|\DateTimeInterface|null $date The instance to compare with or null to use current day.
     *
     * @return bool
     */
    public function isBirthday($date = null)
    {
        return $this->isSameAs('md', $date);
    }

    /**
     * Check if today is the last day of the Month
     *
     * @example
     * ```
     * Carbon::parse('2019-02-28')->isLastOfMonth(); // true
     * Carbon::parse('2019-03-28')->isLastOfMonth(); // false
     * Carbon::parse('2019-03-30')->isLastOfMonth(); // false
     * Carbon::parse('2019-03-31')->isLastOfMonth(); // true
     * Carbon::parse('2019-04-30')->isLastOfMonth(); // true
     * ```
     *
     * @return bool
     */
    public function isLastOfMonth()
    {
        return $this->day === $this->daysInMonth;
    }

    /**
     * Check if the instance is start of day / midnight.
     *
     * @example
     * ```
     * Carbon::parse('2019-02-28 00:00:00')->isStartOfDay(); // true
     * Carbon::parse('2019-02-28 00:00:00.999999')->isStartOfDay(); // true
     * Carbon::parse('2019-02-28 00:00:01')->isStartOfDay(); // false
     * Carbon::parse('2019-02-28 00:00:00.000000')->isStartOfDay(true); // true
     * Carbon::parse('2019-02-28 00:00:00.000012')->isStartOfDay(true); // false
     * ```
     *
     * @param bool $checkMicroseconds check time at microseconds precision
     *
     * @return bool
     */
    public function isStartOfDay($checkMicroseconds = false)
    {
        /* @var CarbonInterface $this */
        return $checkMicroseconds
            ? $this->rawFormat('H:i:s.u') === '00:00:00.000000'
            : $this->rawFormat('H:i:s') === '00:00:00';
    }

    /**
     * Check if the instance is end of day.
     *
     * @example
     * ```
     * Carbon::parse('2019-02-28 23:59:59.999999')->isEndOfDay(); // true
     * Carbon::parse('2019-02-28 23:59:59.123456')->isEndOfDay(); // true
     * Carbon::parse('2019-02-28 23:59:59')->isEndOfDay(); // true
     * Carbon::parse('2019-02-28 23:59:58.999999')->isEndOfDay(); // false
     * Carbon::parse('2019-02-28 23:59:59.999999')->isEndOfDay(true); // true
     * Carbon::parse('2019-02-28 23:59:59.123456')->isEndOfDay(true); // false
     * Carbon::parse('2019-02-28 23:59:59')->isEndOfDay(true); // false
     * ```
     *
     * @param bool $checkMicroseconds check time at microseconds precision
     *
     * @return bool
     */
    public function isEndOfDay($checkMicroseconds = false)
    {
        /* @var CarbonInterface $this */
        return $checkMicroseconds
            ? $this->rawFormat('H:i:s.u') === '23:59:59.999999'
            : $this->rawFormat('H:i:s') === '23:59:59';
    }

    /**
     * Check if the instance is start of day / midnight.
     *
     * @example
     * ```
     * Carbon::parse('2019-02-28 00:00:00')->isMidnight(); // true
     * Carbon::parse('2019-02-28 00:00:00.999999')->isMidnight(); // true
     * Carbon::parse('2019-02-28 00:00:01')->isMidnight(); // false
     * ```
     *
     * @return bool
     */
    public function isMidnight()
    {
        return $this->isStartOfDay();
    }

    /**
     * Check if the instance is midday.
     *
     * @example
     * ```
     * Carbon::parse('2019-02-28 11:59:59.999999')->isMidday(); // false
     * Carbon::parse('2019-02-28 12:00:00')->isMidday(); // true
     * Carbon::parse('2019-02-28 12:00:00.999999')->isMidday(); // true
     * Carbon::parse('2019-02-28 12:00:01')->isMidday(); // false
     * ```
     *
     * @return bool
     */
    public function isMidday()
    {
        /* @var CarbonInterface $this */
        return $this->rawFormat('G:i:s') === static::$midDayAt.':00:00';
    }

    /**
     * Checks if the (date)time string is in a given format.
     *
     * @example
     * ```
     * Carbon::hasFormat('11:12:45', 'h:i:s'); // true
     * Carbon::hasFormat('13:12:45', 'h:i:s'); // false
     * ```
     *
     * @param string $date
     * @param string $format
     *
     * @return bool
     */
    public static function hasFormat($date, $format)
    {
        // createFromFormat() is known to handle edge cases silently.
        // E.g. "1975-5-1" (Y-n-j) will still be parsed correctly when "Y-m-d" is supplied as the format.
        // To ensure we're really testing against our desired format, perform an additional regex validation.

        return self::matchFormatPattern((string) $date, preg_quote((string) $format, '/'), static::$regexFormats);
    }

    /**
     * Checks if the (date)time string is in a given format.
     *
     * @example
     * ```
     * Carbon::hasFormatWithModifiers('31/08/2015', 'd#m#Y'); // true
     * Carbon::hasFormatWithModifiers('31/08/2015', 'm#d#Y'); // false
     * ```
     *
     * @param string $date
     * @param string $format
     *
     * @return bool
     */
    public static function hasFormatWithModifiers($date, $format): bool
    {
        return self::matchFormatPattern((string) $date, (string) $format, array_merge(static::$regexFormats, static::$regexFormatModifiers));
    }

    /**
     * Checks if the (date)time string is in a given format and valid to create a
     * new instance.
     *
     * @example
     * ```
     * Carbon::canBeCreatedFromFormat('11:12:45', 'h:i:s'); // true
     * Carbon::canBeCreatedFromFormat('13:12:45', 'h:i:s'); // false
     * ```
     *
     * @param string $date
     * @param string $format
     *
     * @return bool
     */
    public static function canBeCreatedFromFormat($date, $format)
    {
        try {
            // Try to create a DateTime object. Throws an InvalidArgumentException if the provided time string
            // doesn't match the format in any way.
            if (!static::rawCreateFromFormat($format, $date)) {
                return false;
            }
        } catch (InvalidArgumentException $e) {
            return false;
        }

        return static::hasFormatWithModifiers($date, $format);
    }

    /**
     * Returns true if the current date matches the given string.
     *
     * @example
     * ```
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('2019')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('2018')); // false
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('2019-06')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('06-02')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('2019-06-02')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('Sunday')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('June')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('12:23')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('12:23:45')); // true
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('12:23:00')); // false
     * var_dump(Carbon::parse('2019-06-02 12:23:45')->is('12h')); // true
     * var_dump(Carbon::parse('2019-06-02 15:23:45')->is('3pm')); // true
     * var_dump(Carbon::parse('2019-06-02 15:23:45')->is('3am')); // false
     * ```
     *
     * @param string $tester day name, month name, hour, date, etc. as string
     *
     * @return bool
     */
    public function is(string $tester)
    {
        $tester = trim($tester);

        if (preg_match('/^\d+$/', $tester)) {
            return $this->year === (int) $tester;
        }

        if (preg_match('/^\d{3,}-\d{1,2}$/', $tester)) {
            return $this->isSameMonth(static::parse($tester));
        }

        if (preg_match('/^\d{1,2}-\d{1,2}$/', $tester)) {
            return $this->isSameDay(static::parse($this->year.'-'.$tester));
        }

        $modifier = preg_replace('/(\d)h$/i', '$1:00', $tester);

        /* @var CarbonInterface $max */
        $median = static::parse('5555-06-15 12:30:30.555555')->modify($modifier);
        $current = $this->avoidMutation();
        /* @var CarbonInterface $other */
        $other = $this->avoidMutation()->modify($modifier);

        if ($current->eq($other)) {
            return true;
        }

        if (preg_match('/\d:\d{1,2}:\d{1,2}$/', $tester)) {
            return $current->startOfSecond()->eq($other);
        }

        if (preg_match('/\d:\d{1,2}$/', $tester)) {
            return $current->startOfMinute()->eq($other);
        }

        if (preg_match('/\d(?:h|am|pm)$/', $tester)) {
            return $current->startOfHour()->eq($other);
        }

        if (preg_match(
            '/^(?:january|february|march|april|may|june|july|august|september|october|november|december)(?:\s+\d+)?$/i',
            $tester
        )) {
            return $current->startOfMonth()->eq($other->startOfMonth());
        }

        $units = [
            'month' => [1, 'year'],
            'day' => [1, 'month'],
            'hour' => [0, 'day'],
            'minute' => [0, 'hour'],
            'second' => [0, 'minute'],
            'microsecond' => [0, 'second'],
        ];

        foreach ($units as $unit => [$minimum, $startUnit]) {
            if ($minimum === $median->$unit) {
                $current = $current->startOf($startUnit);

                break;
            }
        }

        return $current->eq($other);
    }

    /**
     * Checks if the (date)time string is in a given format with
     * given list of pattern replacements.
     *
     * @example
     * ```
     * Carbon::hasFormat('11:12:45', 'h:i:s'); // true
     * Carbon::hasFormat('13:12:45', 'h:i:s'); // false
     * ```
     *
     * @param string $date
     * @param string $format
     * @param array  $replacements
     *
     * @return bool
     */
    private static function matchFormatPattern(string $date, string $format, array $replacements): bool
    {
        // Preg quote, but remove escaped backslashes since we'll deal with escaped characters in the format string.
        $regex = str_replace('\\\\', '\\', $format);
        // Replace not-escaped letters
        $regex = preg_replace_callback(
            '/(?<!\\\\)((?:\\\\{2})*)(['.implode('', array_keys($replacements)).'])/',
            function ($match) use ($replacements) {
                return $match[1].strtr($match[2], $replacements);
            },
            $regex
        );
        // Replace escaped letters by the letter itself
        $regex = preg_replace('/(?<!\\\\)((?:\\\\{2})*)\\\\(\w)/', '$1$2', $regex);
        // Escape not escaped slashes
        $regex = preg_replace('#(?<!\\\\)((?:\\\\{2})*)/#', '$1\\/', $regex);

        return (bool) @preg_match('/^'.$regex.'$/', $date);
    }

    /**
     * Returns true if the date was created using CarbonImmutable::startOfTime()
     *
     * @return bool
     */
    public function isStartOfTime(): bool
    {
        return $this->startOfTime ?? false;
    }

    /**
     * Returns true if the date was created using CarbonImmutable::endOfTime()
     *
     * @return bool
     */
    public function isEndOfTime(): bool
    {
        return $this->endOfTime ?? false;
    }

    private function discourageNull($value): void
    {
        if ($value === null) {
            @trigger_error("Since 2.61.0, it's deprecated to compare a date to null, meaning of such comparison is ambiguous and will no longer be possible in 3.0.0, you should explicitly pass 'now' or make an other check to eliminate null values.", \E_USER_DEPRECATED);
        }
    }

    private function discourageBoolean($value): void
    {
        if (\is_bool($value)) {
            @trigger_error("Since 2.61.0, it's deprecated to compare a date to true or false, meaning of such comparison is ambiguous and will no longer be possible in 3.0.0, you should explicitly pass 'now' or make an other check to eliminate boolean values.", \E_USER_DEPRECATED);
        }
    }
}
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AnonSec Team