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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Alistaircol\Hta\Domain\Basket; |
| 6 | |
| 7 | use Alistaircol\Hta\Domain\Basket\Concerns\BasketInterface; |
| 8 | use Alistaircol\Hta\Domain\Basket\Concerns\OfferInterface; |
| 9 | use Alistaircol\Hta\Domain\Basket\Concerns\ProductInterface; |
| 10 | use Alistaircol\Hta\Domain\Basket\DataTransferObjects\ProductInterfaceCollection; |
| 11 | use Alistaircol\Hta\Domain\Basket\Exceptions\OfferDiscountOutOfBoundsException; |
| 12 | use Alistaircol\Hta\Domain\Basket\Exceptions\ProductPriceOutOfBoundsException; |
| 13 | |
| 14 | abstract class AbstractBasket implements BasketInterface |
| 15 | { |
| 16 | protected ProductInterfaceCollection $items; |
| 17 | protected ?OfferInterface $offer = null; |
| 18 | |
| 19 | /** |
| 20 | * @inheritDoc |
| 21 | */ |
| 22 | public function applyOffer(OfferInterface $offer): BasketInterface |
| 23 | { |
| 24 | $multiplier = $offer->getDiscountMultiplier(); |
| 25 | if ($multiplier < 0 || $multiplier > 100) { |
| 26 | throw OfferDiscountOutOfBoundsException::causer($offer); |
| 27 | } |
| 28 | |
| 29 | $this->offer = $offer; |
| 30 | |
| 31 | return $this; |
| 32 | } |
| 33 | |
| 34 | /** |
| 35 | * @inheritDoc |
| 36 | */ |
| 37 | public function getAppliedOffer(): ?OfferInterface |
| 38 | { |
| 39 | return $this->offer; |
| 40 | } |
| 41 | |
| 42 | public function add(ProductInterface $product): BasketInterface |
| 43 | { |
| 44 | if ($product->getPrice() < 0) { |
| 45 | throw ProductPriceOutOfBoundsException::causer($product); |
| 46 | } |
| 47 | |
| 48 | return $this; |
| 49 | } |
| 50 | |
| 51 | public function get(string $id): ?ProductInterface |
| 52 | { |
| 53 | return $this->items->offsetGet($id); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * @inheritDoc |
| 58 | */ |
| 59 | public function getTotal(): int |
| 60 | { |
| 61 | if ($this->items->count() === 0) { |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | $total = 0; |
| 66 | foreach ($this->items as $product) { |
| 67 | $total += $product->getDiscountedPrice($this->offer); |
| 68 | } |
| 69 | |
| 70 | return $total; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * @inheritDoc |
| 75 | */ |
| 76 | public function getTotalFormatted(int $total, ?string $iso4217 = 'GBP'): string |
| 77 | { |
| 78 | $formatter = new PriceFormatter($iso4217); |
| 79 | return $formatter->format($total); |
| 80 | } |
| 81 | } |