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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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* Cyprus |
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*/ |
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class CYAlgorithm extends TINAlgorithm |
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{ |
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const LENGTH = 9; |
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const PATTERN = "[0,9]\\d{7}[A-Z]"; |
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public function validate(string $tin) |
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{ |
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if (!$this->isFollowLength($tin)) { |
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return StatusCode::INVALID_LENGTH; |
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} |
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if (!$this->isFollowPattern($tin)) { |
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return StatusCode::INVALID_PATTERN; |
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} |
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if (!$this->isFollowRules($tin)) { |
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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 isFollowPattern(string $tin) |
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{ |
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return StringUtil::isFollowPattern($tin, self::PATTERN); |
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} |
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public function isFollowRules(string $tin) |
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{ |
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$c1 = StringUtil::digitAt($tin, 0); |
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$c2 = StringUtil::digitAt($tin, 1); |
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$c3 = StringUtil::digitAt($tin, 2); |
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$c4 = StringUtil::digitAt($tin, 3); |
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$c5 = StringUtil::digitAt($tin, 4); |
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$c6 = StringUtil::digitAt($tin, 5); |
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$c7 = StringUtil::digitAt($tin, 6); |
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$c8 = StringUtil::digitAt($tin, 7); |
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$c9 = ord($tin[8]); |
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$evenPositionNumbersSum = $c2 + $c4 + $c6 + $c8; |
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$recodedSum = $this->recodeValue($c1) + $this->recodeValue($c3) + $this->recodeValue($c5) + $this->recodeValue($c7); |
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$remainderBy26 = ($evenPositionNumbersSum + $recodedSum) % 26; |
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return $remainderBy26 + 65 == $c9; |
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} |
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/** |
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* @param integer $x |
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* @return integer |
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*/ |
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public function recodeValue($x) |
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{ |
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switch ($x) { |
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case 0: |
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return 1; |
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case 1: |
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return 0; |
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case 2: |
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return 5; |
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case 3: |
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return 7; |
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case 4: |
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return 9; |
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case 5: |
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return 13; |
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case 6: |
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return 15; |
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case 7: |
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return 17; |
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case 8: |
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return 19; |
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case 9: |
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return 21; |
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default: |
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return -1; |
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} |
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} |
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} |
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lekoala /
tin
