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<?php |
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namespace Bavix\Wallet\Objects; |
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use Bavix\Wallet\Interfaces\Customer; |
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use Bavix\Wallet\Interfaces\Product; |
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use Bavix\Wallet\Models\Transfer; |
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use Countable; |
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use function count; |
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use function get_class; |
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use function array_unique; |
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class Cart implements Countable |
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{ |
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/** |
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* @var Product[] |
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*/ |
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protected $items = []; |
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/** |
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* @var int[] |
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*/ |
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protected $quantity = []; |
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/** |
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* @return static |
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*/ |
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public static function make(): self |
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{ |
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return new static(); |
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} |
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/** |
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* @param Product $product |
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* @param int $quantity |
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* @return static |
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*/ |
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public function addItem(Product $product, int $quantity = 1): self |
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{ |
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$this->addQuantity($product, $quantity); |
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for ($i = 0; $i < $quantity; $i++) { |
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$this->items[] = $product; |
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} |
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return $this; |
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} |
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/** |
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* @param iterable $products |
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* @return static |
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*/ |
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public function addItems(iterable $products): self |
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{ |
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foreach ($products as $product) { |
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$this->addItem($product); |
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} |
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return $this; |
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} |
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/** |
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* @return Product[] |
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*/ |
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public function getItems(): array |
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{ |
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return $this->items; |
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} |
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/** |
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* @return Product[] |
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*/ |
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public function getUniqueItems(): array |
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{ |
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return array_unique($this->items); |
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} |
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/** |
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* The method returns the transfers already paid for the goods |
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* |
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* @param Customer $customer |
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* @param bool|null $gifts |
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* @return Transfer[] |
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*/ |
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public function alreadyBuy(Customer $customer, bool $gifts = null): array |
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{ |
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return $customer->paidCart($this, $gifts); |
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} |
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/** |
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* @param Customer $customer |
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* @param bool|null $force |
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* @return bool |
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*/ |
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public function canBuy(Customer $customer, bool $force = null): bool |
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{ |
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foreach ($this->items as $item) { |
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if (!$item->canBuy($customer, $this->getQuantity($item), $force)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @return int |
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*/ |
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public function getTotal(): int |
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{ |
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$result = 0; |
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foreach ($this->items as $item) { |
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$result += $item->getAmountProduct(); |
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} |
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return $result; |
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} |
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/** |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->items); |
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} |
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/** |
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* @param Product $product |
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* @return int |
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*/ |
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public function getQuantity(Product $product): int |
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{ |
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$class = get_class($product); |
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$uniq = $product->getUniqueId(); |
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return $this->quantity[$class][$uniq] ?? 0; |
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} |
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/** |
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* @param Product $product |
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* @param int $quantity |
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*/ |
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protected function addQuantity(Product $product, int $quantity): void |
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{ |
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$class = get_class($product); |
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$uniq = $product->getUniqueId(); |
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$this->quantity[$class][$uniq] = $this->getQuantity($product) + $quantity; |
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} |
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} |
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bavix /
laravel-wallet
