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<?php |
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namespace Brazanation\Documents; |
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use Brazanation\Documents\Exception\InvalidDocument as InvalidDocumentException; |
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abstract class AbstractDocument implements DocumentInterface |
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{ |
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/** |
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* @var string |
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*/ |
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protected $number; |
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/** |
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* @var string |
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*/ |
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protected $digit; |
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/** |
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* @var int |
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*/ |
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protected $length; |
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/** |
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* @var int |
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*/ |
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protected $numberOfDigits; |
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/** |
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* @var string |
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*/ |
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protected $type; |
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/** |
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* AbstractDocument constructor. |
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* |
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* @param string $number Numeric section with checker digit. |
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* @param int $length Max length of document. |
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* @param int $numberOfDigits Max length of checker digits. |
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* @param string $type Document name/type. |
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*/ |
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public function __construct($number, $length, $numberOfDigits, $type) |
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{ |
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$this->type = (string) $type; |
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$this->numberOfDigits = (int) $numberOfDigits; |
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$this->length = (int) $length; |
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$this->digit = substr($number, -($numberOfDigits)); |
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$this->validate($number); |
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$this->number = substr($number, 0, -($numberOfDigits)); |
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} |
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/** |
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* Check if document number is valid. |
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* |
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* @param string $number Numeric section with checker digit. |
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* |
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* @throws InvalidDocumentException when number is empty |
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* @throws InvalidDocumentException when number is not valid |
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*/ |
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protected function validate($number) |
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{ |
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if (empty($number)) { |
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throw InvalidDocumentException::notEmpty($this->type); |
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} |
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if (!$this->isValid($number)) { |
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throw InvalidDocumentException::isNotValid($this->type, $number); |
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} |
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} |
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/** |
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* Validates number is a valid. |
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* |
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* @param string $number Numeric section with checker digit. |
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* |
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* @return bool Returns true if it is a valid number, otherwise false. |
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*/ |
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protected function isValid($number) |
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{ |
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$isRepeated = preg_match("/^{$number[0]}{" . $this->length . '}$/', $number); |
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if (strlen($number) != $this->length || $isRepeated) { |
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return false; |
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} |
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$digit = $this->calculateDigit(substr($number, 0, -($this->numberOfDigits))); |
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return "$digit" === "{$this->digit}"; |
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} |
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/** |
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* Handle number to string. |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return "{$this->number}{$this->digit}"; |
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} |
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} |
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brazanation /
php-documents
