<?php
/**
 * GET /api/lehrplan/anker/<code>
 */

declare(strict_types=1);
require_once __DIR__ . '/../../bootstrap.php';

v2_validate_method('GET');
v2_auth_require('any');

$code = $_GET['code'] ?? '';
if (!$code && !empty($_SERVER['PATH_INFO'])) {
    $code = trim($_SERVER['PATH_INFO'], '/');
}
if (!$code) {
    v2_response_error(400, 'missing_code', 'Lehrplan-Code fehlt.');
}

$row = v2_db_one("
    SELECT code, country, scheme, level, topic, competence
    FROM lehrplan_anchors_v2
    WHERE code = :code AND is_active = 1
", [':code' => $code]);

if (!$row) {
    v2_response_error(404, 'not_found', "Lehrplan-Anker '$code' nicht gefunden.");
}

v2_response_ok([
    'code' => $row['code'],
    'country' => $row['country'],
    'scheme' => $row['scheme'],
    'level' => $row['level'],
    'topic' => $row['topic'],
    'competence' => $row['competence'],
]);