<?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;

use Closure;
use DateTimeInterface;
use ReflectionMethod;

/**
 * A factory to generate Carbon instances with common settings.
 *
 * <autodoc generated by `composer phpdoc`>
 *
 * @method bool                                               canBeCreatedFromFormat($date, $format)                                                                                       Checks if the (date)time string is in a given format and valid to create a
 *                                                                                                                                                                                         new instance.
 * @method Carbon|false                                       create($year = 0, $month = 1, $day = 1, $hour = 0, $minute = 0, $second = 0, $tz = null)                                     Create a new Carbon instance from a specific date and time.
 *                                                                                                                                                                                         If any of $year, $month or $day are set to null their now() values will
 *                                                                                                                                                                                         be used.
 *                                                                                                                                                                                         If $hour is null it will be set to its now() value and the default
 *                                                                                                                                                                                         values for $minute and $second will be their now() values.
 *                                                                                                                                                                                         If $hour is not null then the default values for $minute and $second
 *                                                                                                                                                                                         will be 0.
 * @method Carbon                                             createFromDate($year = null, $month = null, $day = null, $tz = null)                                                         Create a Carbon instance from just a date. The time portion is set to now.
 * @method Carbon|false                                       createFromFormat($format, $time, $tz = null)                                                                                 Create a Carbon instance from a specific format.
 * @method Carbon|false                                       createFromIsoFormat($format, $time, $tz = null, $locale = 'en', $translator = null)                                          Create a Carbon instance from a specific ISO format (same replacements as ->isoFormat()).
 * @method Carbon|false                                       createFromLocaleFormat($format, $locale, $time, $tz = null)                                                                  Create a Carbon instance from a specific format and a string in a given language.
 * @method Carbon|false                                       createFromLocaleIsoFormat($format, $locale, $time, $tz = null)                                                               Create a Carbon instance from a specific ISO format and a string in a given language.
 * @method Carbon                                             createFromTime($hour = 0, $minute = 0, $second = 0, $tz = null)                                                              Create a Carbon instance from just a time. The date portion is set to today.
 * @method Carbon                                             createFromTimeString($time, $tz = null)                                                                                      Create a Carbon instance from a time string. The date portion is set to today.
 * @method Carbon                                             createFromTimestamp($timestamp, $tz = null)                                                                                  Create a Carbon instance from a timestamp and set the timezone (use default one if not specified).
 *                                                                                                                                                                                         Timestamp input can be given as int, float or a string containing one or more numbers.
 * @method Carbon                                             createFromTimestampMs($timestamp, $tz = null)                                                                                Create a Carbon instance from a timestamp in milliseconds.
 *                                                                                                                                                                                         Timestamp input can be given as int, float or a string containing one or more numbers.
 * @method Carbon                                             createFromTimestampMsUTC($timestamp)                                                                                         Create a Carbon instance from a timestamp in milliseconds.
 *                                                                                                                                                                                         Timestamp input can be given as int, float or a string containing one or more numbers.
 * @method Carbon                                             createFromTimestampUTC($timestamp)                                                                                           Create a Carbon instance from an timestamp keeping the timezone to UTC.
 *                                                                                                                                                                                         Timestamp input can be given as int, float or a string containing one or more numbers.
 * @method Carbon                                             createMidnightDate($year = null, $month = null, $day = null, $tz = null)                                                     Create a Carbon instance from just a date. The time portion is set to midnight.
 * @method Carbon|false                                       createSafe($year = null, $month = null, $day = null, $hour = null, $minute = null, $second = null, $tz = null)               Create a new safe Carbon instance from a specific date and time.
 *                                                                                                                                                                                         If any of $year, $month or $day are set to null their now() values will
 *                                                                                                                                                                                         be used.
 *                                                                                                                                                                                         If $hour is null it will be set to its now() value and the default
 *                                                                                                                                                                                         values for $minute and $second will be their now() values.
 *                                                                                                                                                                                         If $hour is not null then the default values for $minute and $second
 *                                                                                                                                                                                         will be 0.
 *                                                                                                                                                                                         If one of the set values is not valid, an InvalidDateException
 *                                                                                                                                                                                         will be thrown.
 * @method CarbonInterface                                    createStrict(?int $year = 0, ?int $month = 1, ?int $day = 1, ?int $hour = 0, ?int $minute = 0, ?int $second = 0, $tz = null) Create a new Carbon instance from a specific date and time using strict validation.
 * @method Carbon                                             disableHumanDiffOption($humanDiffOption)                                                                                     @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 * @method Carbon                                             enableHumanDiffOption($humanDiffOption)                                                                                      @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 * @method mixed                                              executeWithLocale($locale, $func)                                                                                            Set the current locale to the given, execute the passed function, reset the locale to previous one,
 *                                                                                                                                                                                         then return the result of the closure (or null if the closure was void).
 * @method Carbon                                             fromSerialized($value)                                                                                                       Create an instance from a serialized string.
 * @method void                                               genericMacro($macro, $priority = 0)                                                                                          Register a custom macro.
 * @method array                                              getAvailableLocales()                                                                                                        Returns the list of internally available locales and already loaded custom locales.
 *                                                                                                                                                                                         (It will ignore custom translator dynamic loading.)
 * @method Language[]                                         getAvailableLocalesInfo()                                                                                                    Returns list of Language object for each available locale. This object allow you to get the ISO name, native
 *                                                                                                                                                                                         name, region and variant of the locale.
 * @method array                                              getDays()                                                                                                                    Get the days of the week
 * @method string|null                                        getFallbackLocale()                                                                                                          Get the fallback locale.
 * @method array                                              getFormatsToIsoReplacements()                                                                                                List of replacements from date() format to isoFormat().
 * @method int                                                getHumanDiffOptions()                                                                                                        Return default humanDiff() options (merged flags as integer).
 * @method array                                              getIsoUnits()                                                                                                                Returns list of locale units for ISO formatting.
 * @method array                                              getLastErrors()                                                                                                              {@inheritdoc}
 * @method string                                             getLocale()                                                                                                                  Get the current translator locale.
 * @method callable|null                                      getMacro($name)                                                                                                              Get the raw callable macro registered globally for a given name.
 * @method int                                                getMidDayAt()                                                                                                                get midday/noon hour
 * @method Closure|Carbon                                     getTestNow()                                                                                                                 Get the Carbon instance (real or mock) to be returned when a "now"
 *                                                                                                                                                                                         instance is created.
 * @method string                                             getTimeFormatByPrecision($unitPrecision)                                                                                     Return a format from H:i to H:i:s.u according to given unit precision.
 * @method string                                             getTranslationMessageWith($translator, string $key, ?string $locale = null, ?string $default = null)                         Returns raw translation message for a given key.
 * @method \Symfony\Component\Translation\TranslatorInterface getTranslator()                                                                                                              Get the default translator instance in use.
 * @method int                                                getWeekEndsAt()                                                                                                              Get the last day of week
 * @method int                                                getWeekStartsAt()                                                                                                            Get the first day of week
 * @method array                                              getWeekendDays()                                                                                                             Get weekend days
 * @method bool                                               hasFormat($date, $format)                                                                                                    Checks if the (date)time string is in a given format.
 * @method bool                                               hasFormatWithModifiers($date, $format)                                                                                       Checks if the (date)time string is in a given format.
 * @method bool                                               hasMacro($name)                                                                                                              Checks if macro is registered globally.
 * @method bool                                               hasRelativeKeywords($time)                                                                                                   Determine if a time string will produce a relative date.
 * @method bool                                               hasTestNow()                                                                                                                 Determine if there is a valid test instance set. A valid test instance
 *                                                                                                                                                                                         is anything that is not null.
 * @method Carbon                                             instance($date)                                                                                                              Create a Carbon instance from a DateTime one.
 * @method bool                                               isImmutable()                                                                                                                Returns true if the current class/instance is immutable.
 * @method bool                                               isModifiableUnit($unit)                                                                                                      Returns true if a property can be changed via setter.
 * @method bool                                               isMutable()                                                                                                                  Returns true if the current class/instance is mutable.
 * @method bool                                               isStrictModeEnabled()                                                                                                        Returns true if the strict mode is globally in use, false else.
 *                                                                                                                                                                                         (It can be overridden in specific instances.)
 * @method bool                                               localeHasDiffOneDayWords($locale)                                                                                            Returns true if the given locale is internally supported and has words for 1-day diff (just now, yesterday, tomorrow).
 *                                                                                                                                                                                         Support is considered enabled if the 3 words are translated in the given locale.
 * @method bool                                               localeHasDiffSyntax($locale)                                                                                                 Returns true if the given locale is internally supported and has diff syntax support (ago, from now, before, after).
 *                                                                                                                                                                                         Support is considered enabled if the 4 sentences are translated in the given locale.
 * @method bool                                               localeHasDiffTwoDayWords($locale)                                                                                            Returns true if the given locale is internally supported and has words for 2-days diff (before yesterday, after tomorrow).
 *                                                                                                                                                                                         Support is considered enabled if the 2 words are translated in the given locale.
 * @method bool                                               localeHasPeriodSyntax($locale)                                                                                               Returns true if the given locale is internally supported and has period syntax support (X times, every X, from X, to X).
 *                                                                                                                                                                                         Support is considered enabled if the 4 sentences are translated in the given locale.
 * @method bool                                               localeHasShortUnits($locale)                                                                                                 Returns true if the given locale is internally supported and has short-units support.
 *                                                                                                                                                                                         Support is considered enabled if either year, day or hour has a short variant translated.
 * @method void                                               macro($name, $macro)                                                                                                         Register a custom macro.
 * @method Carbon|null                                        make($var)                                                                                                                   Make a Carbon instance from given variable if possible.
 *                                                                                                                                                                                         Always return a new instance. Parse only strings and only these likely to be dates (skip intervals
 *                                                                                                                                                                                         and recurrences). Throw an exception for invalid format, but otherwise return null.
 * @method Carbon                                             maxValue()                                                                                                                   Create a Carbon instance for the greatest supported date.
 * @method Carbon                                             minValue()                                                                                                                   Create a Carbon instance for the lowest supported date.
 * @method void                                               mixin($mixin)                                                                                                                Mix another object into the class.
 * @method Carbon                                             now($tz = null)                                                                                                              Get a Carbon instance for the current date and time.
 * @method Carbon                                             parse($time = null, $tz = null)                                                                                              Create a carbon instance from a string.
 *                                                                                                                                                                                         This is an alias for the constructor that allows better fluent syntax
 *                                                                                                                                                                                         as it allows you to do Carbon::parse('Monday next week')->fn() rather
 *                                                                                                                                                                                         than (new Carbon('Monday next week'))->fn().
 * @method Carbon                                             parseFromLocale($time, $locale = null, $tz = null)                                                                           Create a carbon instance from a localized string (in French, Japanese, Arabic, etc.).
 * @method string                                             pluralUnit(string $unit)                                                                                                     Returns standardized plural of a given singular/plural unit name (in English).
 * @method Carbon|false                                       rawCreateFromFormat($format, $time, $tz = null)                                                                              Create a Carbon instance from a specific format.
 * @method Carbon                                             rawParse($time = null, $tz = null)                                                                                           Create a carbon instance from a string.
 *                                                                                                                                                                                         This is an alias for the constructor that allows better fluent syntax
 *                                                                                                                                                                                         as it allows you to do Carbon::parse('Monday next week')->fn() rather
 *                                                                                                                                                                                         than (new Carbon('Monday next week'))->fn().
 * @method Carbon                                             resetMacros()                                                                                                                Remove all macros and generic macros.
 * @method void                                               resetMonthsOverflow()                                                                                                        @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 *                                                                                                                                                                                                     Or you can use method variants: addMonthsWithOverflow/addMonthsNoOverflow, same variants
 *                                                                                                                                                                                                     are available for quarters, years, decade, centuries, millennia (singular and plural forms).
 * @method void                                               resetToStringFormat()                                                                                                        Reset the format used to the default when type juggling a Carbon instance to a string
 * @method void                                               resetYearsOverflow()                                                                                                         @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 *                                                                                                                                                                                                     Or you can use method variants: addYearsWithOverflow/addYearsNoOverflow, same variants
 *                                                                                                                                                                                                     are available for quarters, years, decade, centuries, millennia (singular and plural forms).
 * @method void                                               serializeUsing($callback)                                                                                                    @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather transform Carbon object before the serialization.
 *                                                                                                                                                                                         JSON serialize all Carbon instances using the given callback.
 * @method Carbon                                             setFallbackLocale($locale)                                                                                                   Set the fallback locale.
 * @method Carbon                                             setHumanDiffOptions($humanDiffOptions)                                                                                       @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 * @method bool                                               setLocale($locale)                                                                                                           Set the current translator locale and indicate if the source locale file exists.
 *                                                                                                                                                                                         Pass 'auto' as locale to use closest language from the current LC_TIME locale.
 * @method void                                               setMidDayAt($hour)                                                                                                           @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:
 *                                                                                                                                                                                                         $date->setTime(13, 0, 0, 0)
 *                                                                                                                                                                                         Set midday/noon hour
 * @method Carbon                                             setTestNow($testNow = null)                                                                                                  Set a Carbon instance (real or mock) to be returned when a "now"
 *                                                                                                                                                                                         instance is created.  The provided instance will be returned
 *                                                                                                                                                                                         specifically under the following conditions:
 *                                                                                                                                                                                           - A call to the static now() method, ex. Carbon::now()
 *                                                                                                                                                                                           - When a null (or blank string) is passed to the constructor or parse(), ex. new Carbon(null)
 *                                                                                                                                                                                           - When the string "now" is passed to the constructor or parse(), ex. new Carbon('now')
 *                                                                                                                                                                                           - When a string containing the desired time is passed to Carbon::parse().
 *                                                                                                                                                                                         Note the timezone parameter was left out of the examples above and
 *                                                                                                                                                                                         has no affect as the mock value will be returned regardless of its value.
 *                                                                                                                                                                                         Only the moment is mocked with setTestNow(), the timezone will still be the one passed
 *                                                                                                                                                                                         as parameter of date_default_timezone_get() as a fallback (see setTestNowAndTimezone()).
 *                                                                                                                                                                                         To clear the test instance call this method using the default
 *                                                                                                                                                                                         parameter of null.
 *                                                                                                                                                                                         /!\ Use this method for unit tests only.
 * @method Carbon                                             setTestNowAndTimezone($testNow = null, $tz = null)                                                                           Set a Carbon instance (real or mock) to be returned when a "now"
 *                                                                                                                                                                                         instance is created.  The provided instance will be returned
 *                                                                                                                                                                                         specifically under the following conditions:
 *                                                                                                                                                                                           - A call to the static now() method, ex. Carbon::now()
 *                                                                                                                                                                                           - When a null (or blank string) is passed to the constructor or parse(), ex. new Carbon(null)
 *                                                                                                                                                                                           - When the string "now" is passed to the constructor or parse(), ex. new Carbon('now')
 *                                                                                                                                                                                           - When a string containing the desired time is passed to Carbon::parse().
 *                                                                                                                                                                                         It will also align default timezone (e.g. call date_default_timezone_set()) with
 *                                                                                                                                                                                         the second argument or if null, with the timezone of the given date object.
 *                                                                                                                                                                                         To clear the test instance call this method using the default
 *                                                                                                                                                                                         parameter of null.
 *                                                                                                                                                                                         /!\ Use this method for unit tests only.
 * @method void                                               setToStringFormat($format)                                                                                                   @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather let Carbon object being cast to string with DEFAULT_TO_STRING_FORMAT, and
 *                                                                                                                                                                                                     use other method or custom format passed to format() method if you need to dump another string
 *                                                                                                                                                                                                     format.
 *                                                                                                                                                                                         Set the default format used when type juggling a Carbon instance to a string.
 * @method void                                               setTranslator(TranslatorInterface $translator)                                                                               Set the default translator instance to use.
 * @method Carbon                                             setUtf8($utf8)                                                                                                               @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use UTF-8 language packages on every machine.
 *                                                                                                                                                                                         Set if UTF8 will be used for localized date/time.
 * @method void                                               setWeekEndsAt($day)                                                                                                          @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     Use $weekStartsAt optional parameter instead when using startOfWeek, floorWeek, ceilWeek
 *                                                                                                                                                                                                     or roundWeek method. You can also use the 'first_day_of_week' locale setting to change the
 *                                                                                                                                                                                                     start of week according to current locale selected and implicitly the end of week.
 *                                                                                                                                                                                         Set the last day of week
 * @method void                                               setWeekStartsAt($day)                                                                                                        @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     Use $weekEndsAt optional parameter instead when using endOfWeek method. You can also use the
 *                                                                                                                                                                                                     'first_day_of_week' locale setting to change the start of week according to current locale
 *                                                                                                                                                                                                     selected and implicitly the end of week.
 *                                                                                                                                                                                         Set the first day of week
 * @method void                                               setWeekendDays($days)                                                                                                        @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather consider week-end is always saturday and sunday, and if you have some custom
 *                                                                                                                                                                                                     week-end days to handle, give to those days an other name and create a macro for them:
 *                                                                                                                                                                                                     ```
 *                                                                                                                                                                                                     Carbon::macro('isDayOff', function ($date) {
 *                                                                                                                                                                                                         return $date->isSunday() || $date->isMonday();
 *                                                                                                                                                                                                     });
 *                                                                                                                                                                                                     Carbon::macro('isNotDayOff', function ($date) {
 *                                                                                                                                                                                                         return !$date->isDayOff();
 *                                                                                                                                                                                                     });
 *                                                                                                                                                                                                     if ($someDate->isDayOff()) ...
 *                                                                                                                                                                                                     if ($someDate->isNotDayOff()) ...
 *                                                                                                                                                                                                     // Add 5 not-off days
 *                                                                                                                                                                                                     $count = 5;
 *                                                                                                                                                                                                     while ($someDate->isDayOff() || ($count-- > 0)) {
 *                                                                                                                                                                                                         $someDate->addDay();
 *                                                                                                                                                                                                     }
 *                                                                                                                                                                                                     ```
 *                                                                                                                                                                                         Set weekend days
 * @method bool                                               shouldOverflowMonths()                                                                                                       Get the month overflow global behavior (can be overridden in specific instances).
 * @method bool                                               shouldOverflowYears()                                                                                                        Get the month overflow global behavior (can be overridden in specific instances).
 * @method string                                             singularUnit(string $unit)                                                                                                   Returns standardized singular of a given singular/plural unit name (in English).
 * @method Carbon                                             today($tz = null)                                                                                                            Create a Carbon instance for today.
 * @method Carbon                                             tomorrow($tz = null)                                                                                                         Create a Carbon instance for tomorrow.
 * @method string                                             translateTimeString($timeString, $from = null, $to = null, $mode = CarbonInterface::TRANSLATE_ALL)                           Translate a time string from a locale to an other.
 * @method string                                             translateWith(TranslatorInterface $translator, string $key, array $parameters = [], $number = null)                          Translate using translation string or callback available.
 * @method void                                               useMonthsOverflow($monthsOverflow = true)                                                                                    @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 *                                                                                                                                                                                                     Or you can use method variants: addMonthsWithOverflow/addMonthsNoOverflow, same variants
 *                                                                                                                                                                                                     are available for quarters, years, decade, centuries, millennia (singular and plural forms).
 * @method Carbon                                             useStrictMode($strictModeEnabled = true)                                                                                     @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 * @method void                                               useYearsOverflow($yearsOverflow = true)                                                                                      @deprecated To avoid conflict between different third-party libraries, static setters should not be used.
 *                                                                                                                                                                                                     You should rather use the ->settings() method.
 *                                                                                                                                                                                                     Or you can use method variants: addYearsWithOverflow/addYearsNoOverflow, same variants
 *                                                                                                                                                                                                     are available for quarters, years, decade, centuries, millennia (singular and plural forms).
 * @method mixed                                              withTestNow($testNow, $callback)                                                                                             Temporarily sets a static date to be used within the callback.
 *                                                                                                                                                                                         Using setTestNow to set the date, executing the callback, then
 *                                                                                                                                                                                         clearing the test instance.
 *                                                                                                                                                                                         /!\ Use this method for unit tests only.
 * @method Carbon                                             yesterday($tz = null)                                                                                                        Create a Carbon instance for yesterday.
 *
 * </autodoc>
 */
class Factory
{
    protected $className = Carbon::class;

    protected $settings = [];

    public function __construct(array $settings = [], ?string $className = null)
    {
        if ($className) {
            $this->className = $className;
        }

        $this->settings = $settings;
    }

    public function getClassName()
    {
        return $this->className;
    }

    public function setClassName(string $className)
    {
        $this->className = $className;

        return $this;
    }

    public function className(?string $className = null)
    {
        return $className === null ? $this->getClassName() : $this->setClassName($className);
    }

    public function getSettings()
    {
        return $this->settings;
    }

    public function setSettings(array $settings)
    {
        $this->settings = $settings;

        return $this;
    }

    public function settings(?array $settings = null)
    {
        return $settings === null ? $this->getSettings() : $this->setSettings($settings);
    }

    public function mergeSettings(array $settings)
    {
        $this->settings = array_merge($this->settings, $settings);

        return $this;
    }

    public function __call($name, $arguments)
    {
        $method = new ReflectionMethod($this->className, $name);
        $settings = $this->settings;

        if ($settings && isset($settings['timezone'])) {
            $tzParameters = array_filter($method->getParameters(), function ($parameter) {
                return \in_array($parameter->getName(), ['tz', 'timezone'], true);
            });

            if (isset($arguments[0]) && \in_array($name, ['instance', 'make', 'create', 'parse'], true)) {
                if ($arguments[0] instanceof DateTimeInterface) {
                    $settings['innerTimezone'] = $settings['timezone'];
                } elseif (\is_string($arguments[0]) && date_parse($arguments[0])['is_localtime']) {
                    unset($settings['timezone'], $settings['innerTimezone']);
                }
            } elseif (\count($tzParameters)) {
                array_splice($arguments, key($tzParameters), 0, [$settings['timezone']]);
                unset($settings['timezone']);
            }
        }

        $result = $this->className::$name(...$arguments);

        return $result instanceof CarbonInterface && !empty($settings)
            ? $result->settings($settings)
            : $result;
    }
}
