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<?php |
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namespace LeKoala\Tin\Algo; |
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use LeKoala\Tin\Util\StringUtil; |
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/** |
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* Spain |
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*/ |
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class ESAlgorithm extends TINAlgorithm |
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{ |
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const LENGTH = 9; |
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const PATTERN_1 = "\\d{8}[a-zA-Z]"; |
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const PATTERN_2 = "[XYZKLMxyzklm]\\d{7}[a-zA-Z]"; |
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/** |
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* @var array |
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*/ |
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private static $tabConvertToChar = ['T', 'R', 'W', 'A', 'G', 'M', 'Y', 'F', 'P', 'D', 'X', 'B', 'N', 'J', 'Z', 'S', 'Q', 'V', 'H', 'L', 'C', 'K', 'E']; |
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public function validate(string $tin) |
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{ |
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$normalizedTIN = $this->fillWith0($tin); |
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if (!$this->isFollowLength($normalizedTIN)) { |
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return StatusCode::INVALID_LENGTH; |
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} |
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if (!$this->isFollowPattern1($normalizedTIN) && !$this->isFollowPattern2($normalizedTIN)) { |
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return StatusCode::INVALID_PATTERN; |
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} |
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if (!$this->isFollowRules($normalizedTIN)) { |
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return StatusCode::INVALID_SYNTAX; |
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} |
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return StatusCode::VALID; |
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} |
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public function isFollowLength(string $tin) |
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{ |
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return StringUtil::isFollowLength($tin, self::LENGTH); |
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} |
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public function isFollowPattern1(string $tin) |
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{ |
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return StringUtil::isFollowPattern($tin, self::PATTERN_1); |
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} |
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public function isFollowPattern2(string $tin) |
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{ |
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return StringUtil::isFollowPattern($tin, self::PATTERN_2); |
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} |
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public function isFollowRules(string $tin) |
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{ |
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return ($this->isFollowPattern1($tin) && $this->isFollowESRule1($tin)) || ($this->isFollowPattern2($tin) && $this->isFollowESRule2($tin)); |
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} |
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private function isFollowESRule1(string $tin) |
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{ |
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$number = intval(StringUtil::substring($tin, 0, strlen($tin) - 1)); |
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$checkDigit = $tin[strlen($tin) - 1]; |
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$remainderBy23 = $number % 23; |
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$sum = $remainderBy23 + 1; |
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return strtoupper($checkDigit) == $this->getCharFromNumber($sum); |
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} |
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private function isFollowESRule2(string $tin) |
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{ |
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$c1 = StringUtil::forDigit($this->getNumberFromChar($tin[0]), 10); |
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$number = intval($c1 . StringUtil::substring($tin, 1, strlen($tin) - 1)); |
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$checkDigit = $tin[strlen($tin) - 1]; |
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$remainderBy23 = $number % 23; |
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$sum = $remainderBy23 + 1; |
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return strtoupper($checkDigit) == $this->getCharFromNumber($sum); |
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} |
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protected function getNumberFromChar($m) |
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{ |
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switch (strtoupper($m)) { |
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case 'K': |
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case 'L': |
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case 'M': |
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case 'X': |
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return 0; |
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case 'Y': |
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return 1; |
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case 'Z': |
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return 2; |
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default: |
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return -1; |
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} |
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} |
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private function getCharFromNumber($sum) |
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{ |
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return self::$tabConvertToChar[$sum - 1]; |
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} |
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private function fillWith0(string $tin) |
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{ |
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return StringUtil::fillWith0UntilLength($tin, self::LENGTH); |
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} |
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} |
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lekoala /
tin
