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<?php /** * Wrapper for PHP's DateTime class inspired by moment.js * * @author Tino Ehrich <ehrich@efides.com> * @version See composer.json * * @dependencies >= PHP 5.3.0 */ namespace Moment; class Moment extends \DateTime { /** @var string */ protected $_timezoneString; // ########################################## /** * @param string $dateTime * @param string $timezone */ public function __construct($dateTime = 'now', $timezone = 'UTC') { return $this->resetDateTime($dateTime, $timezone); } // ########################################## /** * @param string $timezoneString * * @return Moment */ protected function _setTimezoneString($timezoneString) { $this->_timezoneString = $timezoneString; return $this; } // ########################################## /** * @return string */ protected function _getTimezoneString() { return $this->_timezoneString; } // ########################################## /** * @param string $timezone * * @return \DateTimeZone */ protected function _getDateTimeZone($timezone) { return new \DateTimeZone($timezone); } // ########################################## /** * @param string $timezone * * @return \DateTime|Moment */ public function setTimezone($timezone) { $this->_setTimezoneString($timezone); parent::setTimezone($this->_getDateTimeZone($timezone)); return $this; } // ########################################## /** * @param string $dateTime * @param string $timezone * * @return Moment */ public function resetDateTime($dateTime = 'now', $timezone = 'UTC') { // cache timezone string $this->_setTimezoneString($timezone); // create instance parent::__construct($dateTime, $this->_getDateTimeZone($timezone)); return $this; } // ########################################## /** * @param null $format * @param null|FormatsInterface $formatsInterface * * @return string */ public function format($format = NULL, $formatsInterface = NULL) { // set default format if ($format === NULL) { $format = \DateTime::ISO8601; } // handle diverse format types if ($formatsInterface instanceof FormatsInterface) { $format = $formatsInterface->format($format); } return parent::format($format); } // ############################################ /** * @param string $type * @param int $value * * @return Moment */ public function add($type = 'day', $value = 1) { parent::modify('+' . $value . ' ' . $type); return $this; } // ############################################ /** * @param string $type * @param int $value * * @return Moment */ public function subtract($type = 'day', $value = 1) { parent::modify('-' . $value . ' ' . $type); return $this; } // ###################################### /** * @param string $dateTime * @param string $timezone * * @return MomentFromVo */ public function from($dateTime = 'now', $timezone = 'UTC') { $fromInstance = parent::diff(new Moment($dateTime, $timezone)); return (new MomentFromVo()) ->setDirection($fromInstance->format('%R')) ->setSeconds($this->_fromToSeconds($fromInstance)) ->setMinutes($this->_fromToMinutes($fromInstance)) ->setHours($this->_fromToHours($fromInstance)) ->setDays($this->_fromToDays($fromInstance)) ->setWeeks($this->_fromToWeeks($fromInstance)); } // ###################################### /** * @param string $timezone * * @return MomentFromVo */ public function fromNow($timezone = 'UTC') { return $this->from('now', $timezone); } // ###################################### /** * @param \DateInterval $dateInterval * * @return string */ protected function _fromToSeconds(\DateInterval $dateInterval) { return ($dateInterval->y * 365 * 24 * 60 * 60) + ($dateInterval->m * 30 * 24 * 60 * 60) + ($dateInterval->d * 24 * 60 * 60) + ($dateInterval->h * 60 * 60) + $dateInterval->s; } // ###################################### /** * @param \DateInterval $dateInterval * * @return string */ protected function _fromToMinutes(\DateInterval $dateInterval) { return $this->_fromToSeconds($dateInterval) / 60; } // ###################################### /** * @param \DateInterval $dateInterval * * @return string */ protected function _fromToHours(\DateInterval $dateInterval) { return $this->_fromToMinutes($dateInterval) / 60; } // ###################################### /** * @param \DateInterval $dateInterval * * @return string */ protected function _fromToDays(\DateInterval $dateInterval) { return $this->_fromToHours($dateInterval) / 24; } // ###################################### /** * @param \DateInterval $dateInterval * * @return string */ protected function _fromToWeeks(\DateInterval $dateInterval) { return $this->_fromToDays($dateInterval) / 7; } // ###################################### /** * @param $period * * @return MomentPeriodVo * @throws \Exception */ public function getPeriod($period) { switch ($period) { case 'week': $currentWeekDay = $this->format('N'); $start = (new Moment('@' . $this->format('U'))) ->setTimezone($this->_getTimezoneString()) ->subtract('day', $currentWeekDay - 1) ->setTime(0, 0, 0); $end = (new Moment('@' . $this->format('U'))) ->setTimezone($this->_getTimezoneString()) ->add('day', 7 - $currentWeekDay) ->setTime(23, 59, 59); break; // ------------------------------ case 'month': $maxMonthDays = $this->format('t'); $currentMonthDay = $this->format('j'); $start = (new Moment('@' . $this->format('U'))) ->setTimezone($this->_getTimezoneString()) ->subtract('day', $currentMonthDay - 1) ->setTime(0, 0, 0); $end = (new Moment('@' . $this->format('U'))) ->setTimezone($this->_getTimezoneString()) ->add('day', $maxMonthDays - $currentMonthDay) ->setTime(23, 59, 59); break; // ------------------------------ default: throw new \Exception("Period \"{$period}\" is not supported yet (supported are \"week\" and \"month\").", 500); } return (new MomentPeriodVo()) ->setRefDate($this) ->setStartDate($start) ->setEndDate($end); } }