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<?php |
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namespace COG\ChronoShifter\Selector; |
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use COG\ChronoShifter\Direction\Direction; |
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use COG\ChronoShifter\Period\Period; |
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/** |
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* @author Kristjan Siimson <[email protected]> |
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* @package Selector\Domain |
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*/ |
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class Specific implements Selector |
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{ |
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/** |
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* @var Direction |
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*/ |
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private $direction; |
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/** |
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* @var int |
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*/ |
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private $number; |
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/** |
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* @param Direction $direction |
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* @param int $number |
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*/ |
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public function __construct(Direction $direction, $number) |
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{ |
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if (false === filter_var($number, FILTER_VALIDATE_INT)) { |
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throw new \InvalidArgumentException('Integer required'); |
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} |
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if ($number <= 0) { |
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throw new \OutOfBoundsException('Day of month less than 1'); |
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} |
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$this->direction = $direction; |
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$this->number = $number; |
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} |
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/** |
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* @param string $date |
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* @param Period $period |
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* @return string |
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*/ |
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public function select($date, Period $period) |
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{ |
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$numberOfDays = min($this->number - 1, $period->getNumberOfDays()); |
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$result = $this->getDateAfterNumberOfDays($period->getStartDate(), $numberOfDays); |
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if ($this->direction->compare($date, $result) !== -1) { |
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$this->direction->next($period); |
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$numberOfDays = min($this->number - 1, $period->getNumberOfDays()); |
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$result = $this->getDateAfterNumberOfDays($period->getStartDate(), $numberOfDays); |
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} |
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return $result; |
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} |
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/** |
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* @param string $date |
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* @param int $numberOfDays |
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* @return string |
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*/ |
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private function getDateAfterNumberOfDays($date, $numberOfDays) |
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{ |
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$startDate = new \DateTime($date); |
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$startDate->add(new \DateInterval(sprintf('P%dD', $numberOfDays))); |
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return $startDate->format('Y-m-d'); |
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} |
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} |
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cashongo /
chronoShifter
