<?php
/**
 * GET /api/glossary/<slug>?lang=de-AT-easy
 *
 * Wir nutzen die V1-glossar-Tabelle additiv (sie hat schon short/long/easy-Spalten).
 * Pfad-Schema: /api/glossary.php?slug=intermodalverkehr (oder via .htaccess /api/glossary/intermodalverkehr)
 */

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

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

// Slug kommt entweder als ?slug= oder via PATH_INFO
$slug = $_GET['slug'] ?? '';
if (!$slug && !empty($_SERVER['PATH_INFO'])) {
    $slug = trim($_SERVER['PATH_INFO'], '/');
}
if (!$slug) {
    v2_response_error(400, 'missing_slug', 'Glossar-Slug fehlt.');
}

$lang = $_GET['lang'] ?? 'de-AT-standard';
$useEasy = str_ends_with($lang, '-easy');

$row = v2_db_one("
    SELECT slug, term, short, short_easy, text, text_easy, image_path
    FROM glossar
    WHERE slug = :slug
", [':slug' => $slug]);

if (!$row) {
    v2_response_error(404, 'not_found', "Glossar-Eintrag '$slug' nicht gefunden.");
}

$shortText = $useEasy && !empty($row['short_easy']) ? $row['short_easy'] : $row['short'];
$longText = $useEasy && !empty($row['text_easy']) ? $row['text_easy'] : $row['text'];

v2_response_ok([
    'slug' => $row['slug'],
    'title' => $row['term'],
    'shortText' => $shortText,
    'longTextHtml' => $longText,
    'imageUrl' => $row['image_path']
        ? V2_BASE_URL . '/../assets/img/glossar/' . basename($row['image_path'])
        : null,
]);