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<?php
declare(strict_types=1);
namespace Simara\Cart\Infrastructure;
use Simara\Cart\Domain\Price;
use Simara\Cart\Domain\Prices\PriceNotFoundException;
use Simara\Cart\Domain\Prices\Prices;
use function fopen;
use function is_resource;
final class CsvPrices implements Prices
{
/**
* @var array<string, Price>
*/
private array $prices = [];
public function __construct(private string $filename)
}
public function unitPrice(string $productId): Price
$this->loadPrices();
return $this->prices[$productId] ?? throw new PriceNotFoundException();
private function loadPrices(): void
if ($this->prices !== []) {
return;
$handle = fopen($this->filename, 'r');
assert(is_resource($handle));
while (($data = fgetcsv($handle, 1000, ",")) !== false) {
$id = $data[0];
$price = new Price($data[1]);
$this->prices[$id] = $price;
fclose($handle);
simara-svatopluk /
cart
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