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<?php |
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declare(strict_types=1); |
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namespace Gbbs\NfeCalculos; |
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use Exception; |
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use Gbbs\NfeCalculos\Exception\InvalidCSTException; |
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use Gbbs\NfeCalculos\Exception\NotImplementedCSTException; |
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class IPI |
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{ |
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public $CNPJProd; |
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public $cSelo; |
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public $qSelo; |
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public $cEnq; |
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public $CST; |
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public $vBC; |
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public $pIPI; |
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public $vIPI; |
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public $qUnid; |
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public $vUnid; |
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/** |
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* @param IPI $IPI |
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* @return IPI |
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* @throws NotImplementedCSTException|InvalidCSTException |
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*/ |
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public static function calcularIPI(IPI $IPI): IPI |
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{ |
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$adValorem = ['00', '50']; |
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$isento = ['01', '03', '04', '51', '53', '54', '55', '99']; |
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$notImplemented = ['02', '05', '49', '52']; |
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if (in_array($IPI->CST, $adValorem, true)) { |
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return IPI::adValoremIPI($IPI); |
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} |
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if (in_array($IPI->CST, $isento, true)) { |
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return IPI::isentoIPI($IPI); |
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} |
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if (in_array($IPI->CST, $notImplemented, true)) { |
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throw new NotImplementedCSTException($IPI->CST); |
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} |
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throw new InvalidCSTException($IPI->CST); |
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} |
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/** |
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* ISENTO |
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* @param IPI $IPI |
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* @return IPI |
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*/ |
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private static function isentoIPI(IPI $IPI): IPI |
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{ |
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$calculado = new IPI(); |
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$calculado->cEnq = $IPI->cEnq; |
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$calculado->CST = $IPI->CST; |
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$calculado->vBC = 0.0; |
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$calculado->pIPI = 0.0; |
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$calculado->vIPI = 0.0; |
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return $calculado; |
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} |
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/** |
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* Calcula o Valor IPI Ad Valoren |
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* @param IPI $IPI |
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* @return IPI |
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*/ |
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private static function adValoremIPI(IPI $IPI): IPI |
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{ |
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$calculado = new IPI(); |
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$calculado->cEnq = $IPI->cEnq; |
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$calculado->CST = $IPI->CST; |
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$calculado->vBC = $IPI->vBC; |
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$calculado->pIPI = $IPI->pIPI; |
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$calculado->vIPI = $IPI->vBC * ($IPI->pIPI / 100); |
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return $calculado; |
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} |
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/** |
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* @param string $ncm |
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* @return float |
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* @throws Exception |
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*/ |
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public static function pIPIFromNCM(string $ncm): float |
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{ |
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$path = realpath(__DIR__ . '/../storage') . '/'; |
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$tipiFile = file_get_contents($path . 'tipi.json'); |
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$tipiList = json_decode($tipiFile, true); |
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foreach ($tipiList as $tipi) { |
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if ($tipi['NCMNum'] === $ncm) { |
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return (float) ($tipi['NCMAli'] === 'NT' ? 0 : $tipi['NCMAli']); |
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} |
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} |
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throw new Exception('NCM inexistente: ' . $ncm); |
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} |
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} |
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