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<?php |
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/** |
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* Copyright (c) Andreas Heigl<[email protected]> |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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* |
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* @author Andreas Heigl<[email protected]> |
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* @copyright Andreas Heigl |
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* @license http://www.opensource.org/licenses/mit-license.php MIT-License |
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* @since 11.10.2016 |
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* @link http://github.com/heiglandreas/org.heigl.DateIntervalComparator |
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*/ |
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namespace Org_Heigl\DateIntervalComparator; |
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use DateInterval; |
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use UnexpectedValueException; |
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class DateIntervalComparator |
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{ |
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private $safe = false; |
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public function __construct(bool $safe = false) |
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{ |
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$this->safe = $safe; |
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} |
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/** @deprecated Use the constructor injected safety flag */ |
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public function safe($safe = true): void |
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{ |
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$this->safe = $safe; |
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} |
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/** |
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* COmpare the two date intervals. |
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* |
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* If the first contains a larger timespan we return 1, if the second contains more |
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* we return -1 and when they are equals we return 0. |
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* |
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* @param DateInterval $first |
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* @param DateInterval $second |
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* |
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* @return int |
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*/ |
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public function compare(DateInterval $first, DateInterval $second): int |
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{ |
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if ($this->safe) { |
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$this->safecheck($first); |
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$this->safecheck($second); |
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} |
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if (0 !== $datePart = $this->compareDatePart($first, $second)) { |
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return $datePart; |
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} |
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return $this->compareTimePart($first, $second); |
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} |
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View Code Duplication |
private function compareDatePart(DateInterval $first, DateInterval $second): int |
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{ |
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if (0 !== $year = $this->compareValue($first->y, $second->y)) { |
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return $year; |
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} |
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if (0 !== $month = $this->compareValue($first->m, $second->m)) { |
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return $month; |
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} |
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if (0 !== $day = $this->compareValue($first->d, $second->d)) { |
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return $day; |
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} |
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return 0; |
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} |
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View Code Duplication |
private function compareTimePart(DateInterval $first, DateInterval $second): int |
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{ |
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if (0 !== $hour = $this->compareValue($first->h, $second->h)) { |
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return $hour; |
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} |
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if (0 !== $minute = $this->compareValue($first->i, $second->i)) { |
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return $minute; |
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} |
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if (0 !== $second = $this->compareValue($first->s, $second->s)) { |
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return $second; |
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} |
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return 0; |
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} |
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private function compareValue(int $a, int $b): int |
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{ |
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if ($a < $b) { |
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return -1; |
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} |
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if ($a > $b) { |
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return 1; |
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} |
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return 0; |
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} |
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private function safecheck(DateInterval $interval): void |
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{ |
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if ($interval->m > 12) { |
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throw new UnexpectedValueException('Month exceeds value 12'); |
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} |
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if ($interval->d > 31) { |
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throw new UnexpectedValueException('Day exceeds value 31'); |
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} |
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// 25 due to DST-Transitions |
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if ($interval->h > 25) { |
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throw new UnexpectedValueException('Hour exceeds value 25'); |
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} |
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if ($interval->i > 60) { |
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throw new UnexpectedValueException('Minute exceeds value 60'); |
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} |
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// 61 due to leap-seconds |
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if ($interval->s > 61) { |
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throw new UnexpectedValueException('Second exceeds value 61'); |
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} |
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} |
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} |
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heiglandreas /
DateIntervalComparator
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.