LVAlgorithm::validate()   A
last analyzed

Complexity

Conditions 3
Paths 3

Size

Total Lines 9
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 3
eloc 5
c 1
b 0
f 0
nc 3
nop 1
dl 0
loc 9
rs 10
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<?php
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namespace LeKoala\Tin\Algo;
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use LeKoala\Tin\Util\DateUtil;
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use LeKoala\Tin\Util\StringUtil;
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/**
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 * Latvia
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 */
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class LVAlgorithm extends TINAlgorithm
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{
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    const LENGTH = 11;
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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->isValidDate($tin)) {
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            return StatusCode::INVALID_PATTERN;
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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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    /**
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     * @param string $tin
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     * @return boolean
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     */
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    private function isValidDate(string $tin)
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    {
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        $c1c2 = StringUtil::substring($tin, 0, 2);
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        if ($c1c2 == '32') {
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            return true;
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        }
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        $day = intval($c1c2);
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        $month = intval(StringUtil::substring($tin, 2, 4));
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        $year = intval(StringUtil::substring($tin, 4, 6));
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        $y1 = DateUtil::validate(1900 + $year, $month, $day);
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        $y2 = DateUtil::validate(2000 + $year, $month, $day);
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        if (!$y1 || !$y2) {
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            return false;
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        }
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        return true;
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    }
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}
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