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<?php
declare(strict_types=1);
namespace Nsfisis\TinyPhpHttpd\PhpConKagawa2025;
use Psr\Http\Message\ResponseFactoryInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\StreamFactoryInterface;
use Psr\Http\Server\RequestHandlerInterface;
final readonly class CookieHandler implements RequestHandlerInterface
{
public function __construct(
private ResponseFactoryInterface $responseFactory,
private StreamFactoryInterface $streamFactory,
) {
}
public function handle(ServerRequestInterface $request): ResponseInterface
{
$cookies = $request->getCookieParams();
$orders = [];
if (isset($cookies['order']) && $cookies['order'] !== '') {
$orders = explode(',', $cookies['order']);
}
$setCookie = null;
if ($request->getMethod() === 'POST') {
$postData = [];
parse_str((string) $request->getBody(), $postData);
$newOrder = $postData['udon'] ?? '';
if ($newOrder !== '') {
$orders[] = $newOrder;
$setCookie = 'order=' . urlencode(implode(',', $orders)) . '; path=/';
}
}
$orderList = '';
if (count($orders) > 0) {
$orderList = '<h2>現在の注文</h2><ul>';
foreach ($orders as $order) {
$orderList .= '<li>' . htmlspecialchars($order) . '</li>';
}
$orderList .= '</ul>';
$orderList .= '<a href="/phpcon-kagawa-2025/cookie/eat/">食べる</a>';
} else {
$orderList = '<p>まだ注文がありません。</p>';
}
$body = <<<HTML
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>うどん店</title>
</head>
<body>
<main>
<h1>うどん店</h1>
<form method="POST" action="/phpcon-kagawa-2025/cookie/">
<div>
<select name="udon">
<option value="かけ">かけ</option>
<option value="ぶっかけ">ぶっかけ</option>
<option value="釜揚げ">釜揚げ</option>
<option value="釜玉">釜玉</option>
</select>
</div>
<button type="submit">注文</button>
</form>
{$orderList}
</main>
</body>
</html>
HTML;
$response = $this->responseFactory->createResponse(200)
->withHeader('Content-Type', 'text/html; charset=UTF-8')
->withBody($this->streamFactory->createStream($body));
if ($setCookie !== null) {
$response = $response->withHeader('Set-Cookie', $setCookie);
}
return $response;
}
}
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