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<?php |
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namespace Kata\Lonja\Domain\Service; |
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use Kata\Lonja\Domain\Model\Destination; |
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use Kata\Lonja\Domain\Model\Load; |
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use Kata\Lonja\Domain\Model\LoadLine; |
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use Kata\Lonja\Domain\PriceRule; |
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final class CalculateLoadBenefit |
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{ |
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/** |
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* @param Load $a_load |
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* @param Destination $a_destination |
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* @param PriceRule[] $some_price_rules |
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* |
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* @return float |
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*/ |
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public function __invoke(Load $a_load, Destination $a_destination, array $some_price_rules): float |
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{ |
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$load_lines = $a_load->lines(); |
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$benefits = 0; |
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foreach ($load_lines as $load_line) |
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{ |
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$this->recalculateLoadLineBenefits($a_destination, $some_price_rules, $load_line, $benefits); |
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} |
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return $benefits; |
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} |
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/** |
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* @param Destination $a_destination |
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* @param PriceRule[] $some_price_rules |
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* @param LoadLine $load_line |
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* @param float $benefits |
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* |
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* @return void |
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*/ |
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private function recalculateLoadLineBenefits(Destination $a_destination, array $some_price_rules, LoadLine $load_line, float &$benefits): void |
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{ |
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foreach ($some_price_rules as $price_rule) |
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{ |
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$this->recalculateLoadLineBenefitsIfMatchPriceRules($a_destination, $load_line, $price_rule, $benefits); |
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} |
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} |
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private function recalculateLoadLineBenefitsIfMatchPriceRules(Destination $a_destination, LoadLine $load_line, PriceRule $price_rule, float &$benefits): void |
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{ |
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if ($this->currentProductAndDestinationMatchPriceRule($a_destination, $load_line, $price_rule)) |
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{ |
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$benefits += $price_rule->price() * $load_line->kilograms(); |
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} |
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} |
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private function currentProductMatchPriceRule(LoadLine $load_line, PriceRule $price_rule): bool |
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{ |
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return $load_line->product()->equals($price_rule->product()); |
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} |
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private function currentDestinationMatchPriceRule(Destination $a_destination, PriceRule $price_rule): bool |
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{ |
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return $a_destination->city() === $price_rule->city(); |
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} |
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private function currentProductAndDestinationMatchPriceRule(Destination $a_destination, LoadLine $load_line, PriceRule $price_rule): bool |
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{ |
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return $this->currentProductMatchPriceRule($load_line, $price_rule) && $this->currentDestinationMatchPriceRule($a_destination, $price_rule); |
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} |
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} |
uvinum /
php-kata-env
