<?php
require_once '../../includes/config.php';
require_once '../../includes/auth.php';
require_once '../../includes/stories.php';

if (!Auth::check()) {
    http_response_code(401);
    exit('Non autorisé');
}

$input = json_decode(file_get_contents('php://input'), true);
$storyId = $input['storyId'] ?? null;
$chapterId = $input['chapterId'] ?? null;
$title = $input['title'] ?? '';
$content = $input['content'];

try {
    $story = Stories::get($storyId);
    if (!$story) {
        throw new Exception('Roman non trouvé');
    }

    if ($chapterId) {
        // Mise à jour d'un chapitre existant
        foreach ($story['chapters'] as &$chapter) {
            if ($chapter['id'] == $chapterId) {
                $chapter['title'] = $title;
                $chapter['content'] = $content;
                $chapter['updated'] = date('Y-m-d');
                break;
            }
        }
    } else {
        // Nouveau chapitre
        $story['chapters'][] = [
            'id' => uniqid(),
            'title' => $title,
            'content' => $content,
            'created' => date('Y-m-d'),
            'updated' => date('Y-m-d')
        ];
    }

    Stories::save($story);
    echo json_encode(['success' => true]);
} catch (Exception $e) {
    http_response_code(500);
    echo json_encode(['error' => $e->getMessage()]);
}