1 files changed, 164 insertions, 0 deletions
diff --git a/vhosts/t/phpcon-kagawa-2025/src/PhpConKagawa2025/PostHandler.php b/vhosts/t/phpcon-kagawa-2025/src/PhpConKagawa2025/PostHandler.php
new file mode 100644
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+++ b/vhosts/t/phpcon-kagawa-2025/src/PhpConKagawa2025/PostHandler.php
@@ -0,0 +1,164 @@
+<?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 PostHandler implements RequestHandlerInterface
+{
+    /**
+     * @var array<string, string>
+     */
+    private const array ANSWERS = [
+        'ehime' => 'hiroshima',
+        'kagawa' => 'okayama',
+        'tokushima' => 'hyogo',
+    ];
+
+    /**
+     * @var array<string, string>
+     */
+    private const array PREFECTURE_NAMES = [
+        'okayama' => '岡山',
+        'hiroshima' => '広島',
+        'yamaguchi' => '山口',
+        'hyogo' => '兵庫',
+        'osaka' => '大阪',
+    ];
+
+    private const string QUIZ_FORM = <<<'HTML'
+<!DOCTYPE html>
+<html lang="ja">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>本州四国連絡橋クイズ</title>
+</head>
+<body>
+    <main>
+        <h1>本州四国連絡橋クイズ</h1>
+        <p>四国の各県と橋でつながっている中国地方の県を選んでください。</p>
+        <form method="POST" action="/post/">
+            <div>
+                <label>愛媛とつながっているのは？</label>
+                <select name="ehime">
+                    <option value="">選択してください</option>
+                    <option value="okayama">岡山</option>
+                    <option value="hiroshima">広島</option>
+                    <option value="yamaguchi">山口</option>
+                    <option value="hyogo">兵庫</option>
+                    <option value="osaka">大阪</option>
+                </select>
+            </div>
+            <div>
+                <label>香川とつながっているのは？</label>
+                <select name="kagawa">
+                    <option value="">選択してください</option>
+                    <option value="okayama">岡山</option>
+                    <option value="hiroshima">広島</option>
+                    <option value="yamaguchi">山口</option>
+                    <option value="hyogo">兵庫</option>
+                    <option value="osaka">大阪</option>
+                </select>
+            </div>
+            <div>
+                <label>徳島とつながっているのは？</label>
+                <select name="tokushima">
+                    <option value="">選択してください</option>
+                    <option value="okayama">岡山</option>
+                    <option value="hiroshima">広島</option>
+                    <option value="yamaguchi">山口</option>
+                    <option value="hyogo">兵庫</option>
+                    <option value="osaka">大阪</option>
+                </select>
+            </div>
+            <button type="submit">回答する</button>
+        </form>
+    </main>
+</body>
+</html>
+HTML;
+
+    public function __construct(
+        private ResponseFactoryInterface $responseFactory,
+        private StreamFactoryInterface $streamFactory,
+    ) {
+    }
+
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        if ($request->getMethod() === 'POST') {
+            $postData = [];
+            parse_str((string) $request->getBody(), $postData);
+
+            $userEhime = $postData['ehime'] ?? '';
+            $userKagawa = $postData['kagawa'] ?? '';
+            $userTokushima = $postData['tokushima'] ?? '';
+
+            $results = [];
+            $score = 0;
+
+            // Ehime
+            $userEhimeName = self::PREFECTURE_NAMES[$userEhime] ?? $userEhime;
+            if ($userEhime === self::ANSWERS['ehime']) {
+                $results[] = '<p>愛媛: ' . htmlspecialchars($userEhimeName) . ' ⭕ 正解！</p>';
+                $score++;
+            } else {
+                $results[] = '<p>愛媛: ' . htmlspecialchars($userEhimeName) . ' ❌ 不正解</p>';
+            }
+
+            // Kagawa
+            $userKagawaName = self::PREFECTURE_NAMES[$userKagawa] ?? $userKagawa;
+            if ($userKagawa === self::ANSWERS['kagawa']) {
+                $results[] = '<p>香川: ' . htmlspecialchars($userKagawaName) . ' ⭕ 正解！</p>';
+                $score++;
+            } else {
+                $results[] = '<p>香川: ' . htmlspecialchars($userKagawaName) . ' ❌ 不正解</p>';
+            }
+
+            // Tokushima
+            $userTokushimaName = self::PREFECTURE_NAMES[$userTokushima] ?? $userTokushima;
+            if ($userTokushima === self::ANSWERS['tokushima']) {
+                $results[] = '<p>徳島: ' . htmlspecialchars($userTokushimaName) . ' ⭕ 正解！</p>';
+                $score++;
+            } else {
+                $results[] = '<p>徳島: ' . htmlspecialchars($userTokushimaName) . ' ❌ 不正解</p>';
+            }
+
+            $resultHtml = implode("\n", $results);
+
+            $body = <<<HTML
+<!DOCTYPE html>
+<html lang="ja">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>クイズ結果</title>
+</head>
+<body>
+    <main>
+        <h1>クイズ結果</h1>
+        <p class="score">スコア: {$score} / 3</p>
+        {$resultHtml}
+        <p>
+            <a href="/phpcon-kagawa-2025/post/">もう一度挑戦する</a>
+        </p>
+    </main>
+</body>
+</html>
+HTML;
+        } else {
+            $body = self::QUIZ_FORM;
+        }
+
+        return $this->responseFactory->createResponse(200)
+            ->withHeader('Content-Type', 'text/html; charset=UTF-8')
+            ->withBody($this->streamFactory->createStream($body));
+    }
+}