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<?php |
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/** |
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* Copyright 2016 SURFnet bv |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace Surfnet\StepupSelfService\SelfServiceBundle\Value; |
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use DateInterval; |
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use DateTime as CoreDateTime; |
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use Surfnet\StepupSelfService\SelfServiceBundle\Exception\InvalidArgumentException; |
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/** |
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* @SuppressWarnings(PHPMD.TooManyPublicMethods) due to comparison methods |
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*/ |
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class DateTime |
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{ |
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/** |
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* This string can also be used with `DateTime::createFromString()`. |
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*/ |
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const FORMAT = DATE_ATOM; |
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/** |
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* Allows for mocking of time. |
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* |
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* @var self|null |
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*/ |
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private static $now; |
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/** |
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* @var CoreDateTime |
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*/ |
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private $dateTime; |
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/** |
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* @return self |
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*/ |
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public static function now() |
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{ |
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return self::$now ?: new self(new CoreDateTime); |
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} |
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/** |
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* @param string $string A date-time string formatted using `self::FORMAT` (eg. '2014-11-26T15:20:43+01:00'). |
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* @return DateTime |
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*/ |
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public static function fromString($string) |
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{ |
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if (!is_string($string)) { |
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InvalidArgumentException::invalidType('string', 'string', $string); |
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} |
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$dateTime = CoreDateTime::createFromFormat(self::FORMAT, $string); |
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if ($dateTime === false) { |
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throw new InvalidArgumentException('Date-time string could not be parsed: is it formatted correctly?'); |
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} |
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return new self($dateTime); |
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} |
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/** |
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* @param CoreDateTime|null $dateTime |
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*/ |
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public function __construct(CoreDateTime $dateTime = null) |
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{ |
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$this->dateTime = $dateTime ?: new CoreDateTime(); |
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} |
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/** |
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* @param DateInterval $interval |
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* @return DateTime |
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*/ |
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public function add(DateInterval $interval) |
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{ |
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$dateTime = clone $this->dateTime; |
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$dateTime->add($interval); |
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return new self($dateTime); |
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} |
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/** |
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* @param DateInterval $interval |
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* @return DateTime |
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*/ |
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public function sub(DateInterval $interval) |
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{ |
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$dateTime = clone $this->dateTime; |
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$dateTime->sub($interval); |
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return new self($dateTime); |
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} |
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/** |
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* @param DateTime $dateTime |
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* @return boolean |
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*/ |
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public function comesBefore(DateTime $dateTime) |
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{ |
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return $this->dateTime < $dateTime->dateTime; |
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} |
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/** |
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* @param DateTime $dateTime |
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* @return boolean |
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*/ |
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public function comesBeforeOrIsEqual(DateTime $dateTime) |
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{ |
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return $this->dateTime <= $dateTime->dateTime; |
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} |
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/** |
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* @param DateTime $dateTime |
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* @return boolean |
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*/ |
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public function comesAfter(DateTime $dateTime) |
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{ |
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return $this->dateTime > $dateTime->dateTime; |
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} |
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/** |
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* @param DateTime $dateTime |
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* @return boolean |
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*/ |
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public function comesAfterOrIsEqual(DateTime $dateTime) |
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{ |
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return $this->dateTime >= $dateTime->dateTime; |
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} |
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/** |
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* @param $format |
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* @return string |
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*/ |
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public function format($format) |
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{ |
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$formatted = $this->dateTime->format($format); |
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if ($formatted === false) { |
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throw new InvalidArgumentException( |
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sprintf( |
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'Given format "%s" is not a valid format for DateTime', |
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$format |
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) |
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); |
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} |
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return $formatted; |
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} |
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/** |
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* @return string An ISO 8601 representation of this DateTime. |
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*/ |
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public function __toString() |
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{ |
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return $this->format(self::FORMAT); |
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} |
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} |
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