<?php
ini_set('log_errors', 1);
ini_set('error_log', __DIR__ . '/php_errors.log');
ini_set('display_errors', 0);
error_reporting(E_ALL);
header("Content-Type: application/json; charset=UTF-8");
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Methods: GET, POST, DELETE, OPTIONS");
header("Access-Control-Allow-Headers: Content-Type, Authorization");
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') { http_response_code(200); exit; }

define('ENCRYPTION_KEY', 'MaCleSecreteSuperRobuste123!');

try {
    $pdo = new PDO("mysql:host=localhost;dbname=mon_cinema;charset=utf8mb4", "root", "", [
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
    ]);
    $pdo->exec("CREATE TABLE IF NOT EXISTS users (id INT PRIMARY KEY, username VARCHAR(50) NOT NULL, password_hash VARCHAR(255) NOT NULL)");
    $pdo->exec("CREATE TABLE IF NOT EXISTS config (key_name VARCHAR(50) PRIMARY KEY, key_value TEXT NOT NULL)");
    $pdo->exec("CREATE TABLE IF NOT EXISTS critiques (id BIGINT PRIMARY KEY, title VARCHAR(255) NOT NULL, year VARCHAR(10), director VARCHAR(255), poster TEXT, rating DECIMAL(3,1) DEFAULT 3.0, review TEXT, streaming VARCHAR(255))");
    try { $pdo->exec("ALTER TABLE critiques MODIFY COLUMN rating DECIMAL(3,1) DEFAULT 3.0"); } catch (\Exception $e) {}
    $pdo->exec("CREATE TABLE IF NOT EXISTS videotheque (id BIGINT PRIMARY KEY, title VARCHAR(255) NOT NULL, year VARCHAR(10), director VARCHAR(255), poster TEXT, format VARCHAR(50), length VARCHAR(50), publisher VARCHAR(255), ean_isbn13 VARCHAR(50), number_of_discs INT DEFAULT 1, aspect_ratio VARCHAR(50), description TEXT, actors TEXT)");
    try { $pdo->exec("ALTER TABLE videotheque ADD COLUMN actors TEXT AFTER description"); } catch (\Exception $e) {}
} catch (\PDOException $e) { echo json_encode(["error" => "Erreur BDD : " . $e->getMessage()]); exit; }

// ── FONCTIONS UTILITAIRES ──
function makeStableId($type, $title, $year) {
    return (abs(crc32(strtolower(trim($type ?? '')) . '|' . strtolower(trim($title ?? '')) . '|' . trim($year ?? ''))) % 2000000000) + 100000000;
}

function checkAuth($pdo) {
    if ($pdo->query("SELECT COUNT(*) FROM users")->fetchColumn() == 0) return true;
    $token = $_SERVER['HTTP_AUTHORIZATION'] ?? '';
    if (empty($token) && function_exists('apache_request_headers')) {
        $headers = apache_request_headers();
        $token = $headers['Authorization'] ?? $headers['authorization'] ?? '';
    }
    if ($token !== md5(ENCRYPTION_KEY . 'session')) { http_response_code(403); echo json_encode(["error" => "Accès interdit."]); exit; }
}

function encryptData($data) {
    $iv = openssl_random_pseudo_bytes(16);
    $key = hash('sha256', ENCRYPTION_KEY, true);
    return base64_encode(openssl_encrypt($data, 'AES-256-CBC', $key, OPENSSL_RAW_DATA, $iv) . '::' . $iv);
}

function decryptData($str) {
    $decoded = base64_decode($str);
    if ($decoded === false || strpos($decoded, '::') === false) return null;
    list($enc, $iv) = explode('::', $decoded, 2);
    return openssl_decrypt($enc, 'AES-256-CBC', hash('sha256', ENCRYPTION_KEY, true), OPENSSL_RAW_DATA, substr($iv, 0, 16));
}

function getTmdbApiKey($pdo) {
    $stmt = $pdo->prepare("SELECT key_value FROM config WHERE key_name = 'tmdb_api_key'");
    $stmt->execute();
    $row = $stmt->fetch();
    return $row ? decryptData($row['key_value']) : null;
}

function getUpcmdbApiKey($pdo) {
    $stmt = $pdo->prepare("SELECT key_value FROM config WHERE key_name = 'upcmdb_api_key'");
    $stmt->execute();
    $row = $stmt->fetch();
    return $row ? decryptData($row['key_value']) : null;
}

function httpGet($url, $timeout = 5, $ua = null, $extraHeaders = []) {
    if (!$ua) $ua = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36';
    $headers = array_merge(
        ['Accept: application/json, text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'Accept-Language: fr-FR,fr;q=0.8'],
        $extraHeaders
    );
    if (!function_exists('curl_init')) {
        $headerLines = implode("\r\n", $headers);
        $ctx = stream_context_create(['http' => ['timeout' => $timeout, 'user_agent' => $ua, 'header' => $headerLines]]);
        $res = @file_get_contents($url, false, $ctx);
        return $res ?: null;
    }
    $ch = curl_init($url);
    curl_setopt_array($ch, [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT => $timeout,
        CURLOPT_CONNECTTIMEOUT => 3,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_USERAGENT => $ua,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_REFERER => 'https://www.cinemapassion.com/',
        CURLOPT_HTTPHEADER => $headers,
    ]);
    $res = curl_exec($ch);
    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    return ($code === 200 && is_string($res) && strlen($res) > 0) ? $res : null;
}

function cleanTitle($title) {
    $clean = preg_replace('/\s*[\[\(].*?[\]\)]\s*/', '', $title);
    $clean = preg_replace('/\s*-\s*(Édition|Edition|Collector|Simple|Spéciale|Digibook|Ultimate|Intégrale|Combo|SteelBook|Boîtier).*$/i', '', $clean);
    $clean = preg_replace('/(blu-ray|bluray|dvd|4k|ultra hd|combo|vhs|bdrip).*$/i', '', $clean);
    return trim(preg_replace('/\s{2,}/', ' ', $clean));
}

function detectFormat($title, $desc = '') {
    $t = strtoupper($title . ' ' . $desc);
    if (strpos($t, '4K') !== false || strpos($t, 'UHD') !== false) return '4K Ultra HD';
    if (strpos($t, 'BLU-RAY') !== false || strpos($t, 'BLURAY') !== false) return 'Blu-ray';
    if (strpos($t, 'DVD') !== false) return 'DVD';
    if (strpos($t, 'VHS') !== false) return 'VHS';
    if (strpos($t, 'COFFRET') !== false || strpos($t, 'TRILOGIE') !== false) return 'Coffret';
    return 'Blu-ray';
}

function parseDiscCountFromTitle($title) {
    if (preg_match('/(\d+)\s*(?:dvd|blu-?ray|bluray|bd|disc|disque)/i', $title, $m)) {
        return max(1, (int)$m[1]);
    }
    if (preg_match('/(?:coffret|pack|collection|trilogie|anthologie).*?(\d+)/i', $title, $m)) {
        return max(1, (int)$m[1]);
    }
    if (preg_match('/\btrilogie\b/i', $title)) return 3;
    return 1;
}

function cleanUpcTitle($title) {
    $clean = trim($title);
    $clean = preg_replace('/^[\s"]*(DVD|Blu-ray|Blu Ray|4K|UHD)[\s"]*/i', '', $clean);
    $clean = preg_replace('/(blu-ray|bluray|dvd|4k|ultra hd|combo|vhs|blister pack|new blister).*$/i', '', $clean);
    $clean = preg_replace('/[\s"]+New[\s"]*$/i', '', $clean);
    return cleanTitle($clean);
}

function emptyPhysicalResult() {
    return [
        'title' => '', 'publisher' => '', 'format' => '', 'length' => '',
        'number_of_discs' => 1, 'aspect_ratio' => '', 'year' => ''
    ];
}

// ── FONCTIONS API PHYSIQUE (UPCitemdb → UPCMDB fallback) ──
function throttleUpcLookup() {
    static $last = 0;
    $elapsed = microtime(true) - $last;
    if ($last > 0 && $elapsed < 2) usleep((int)((2 - $elapsed) * 1000000));
    $last = microtime(true);
}

function fetchPhysicalFromUpcitemdb($ean) {
    $empty = ['title'=>'','publisher'=>'','format'=>'','length'=>'','number_of_discs'=>1,'aspect_ratio'=>'','year'=>''];
    $ean = preg_replace('/[^0-9]/', '', (string)$ean);
    if (strlen($ean) < 8) return $empty;
    throttleUpcLookup();
    $res = httpGet("https://api.upcitemdb.com/prod/trial/lookup?upc=" . urlencode($ean), 10);
    if (!$res) return $empty;
    $data = json_decode($res, true);
    if (empty($data['items'][0])) return $empty;
    
    $item = $data['items'][0];
    $raw = $item['title'] ?? '';
    $clean = cleanUpcTitle($raw) ?: $raw;
    
    return [
        'title' => $clean,
        'publisher' => trim($item['brand'] ?? $item['manufacturer'] ?? ''),
        'format' => detectFormat($raw),
        'number_of_discs' => parseDiscCountFromTitle($raw),
        'aspect_ratio' => '',
        'year' => '',
        'length' => ''
    ];
}

function fetchPhysicalFromUpcmdb($ean, $pdo) {
    $empty = ['title'=>'','publisher'=>'','format'=>'','length'=>'','number_of_discs'=>1,'aspect_ratio'=>'','year'=>''];
    $apiKey = getUpcmdbApiKey($pdo);
    if (!$apiKey) return $empty;
    $ean = preg_replace('/[^0-9]/', '', (string)$ean);
    if (strlen($ean) < 8) return $empty;
    
    $url = "https://upcmdb.com/api/v1/lookup/" . urlencode($ean);
    $res = httpGet($url, 10, 'MonPetitCinema/1.0', ['Accept: application/json', 'X-API-Key: ' . $apiKey]);
    if (!$res || $res[0] === '<') return $empty;
    $data = json_decode($res, true);
    if (($data['status'] ?? '') !== 'success' || empty($data['data'])) return $empty;
    
    $item = $data['data'];
    $raw = trim($item['title'] ?? '');
    if (!$raw) return $empty;
    
    return [
        'title' => cleanUpcTitle($raw) ?: $raw,
        'publisher' => trim($item['studio'] ?? $item['publisher'] ?? ''),
        'format' => trim($item['format'] ?: detectFormat($raw)),
        'length' => trim($item['runtime'] ?? ''),
        'number_of_discs' => (int)($item['discs'] ?? parseDiscCountFromTitle($raw)) ?: 1,
        'aspect_ratio' => trim($item['aspect_ratio'] ?? ''),
        'year' => trim($item['year'] ?? '')
    ];
}

function fetchPhysicalByEan($ean, $pdo = null) {
    $res = fetchPhysicalFromUpcitemdb($ean);
    if (!empty($res['title'])) return $res;
    if ($pdo) {
        $fb = fetchPhysicalFromUpcmdb($ean, $pdo);
        if (!empty($fb['title'])) return $fb;
    }
    return $res;
}

// ── FONCTION POUR RÉCUPÉRER LES AFFICHES DEPUIS TMDB ──
function fetchPosterTMDB($title, $year = '', $pdo = null) {
    $defaultPoster = 'assets/img/default_physical_media.jpg';
    $cleanTitle = cleanTitle($title);
    
    if (empty($cleanTitle)) {
        return ['poster' => $defaultPoster, 'title' => $cleanTitle, 'format' => 'Blu-ray'];
    }
    
    $tmdbKey = getTmdbApiKey($pdo);
    if (!$tmdbKey) {
        error_log("TMDB: ❌ Clé API non configurée");
        return ['poster' => $defaultPoster, 'title' => $cleanTitle, 'format' => 'Blu-ray'];
    }
    
    // ÉTAPE 1 : Recherche du film
    $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$tmdbKey}&query=" . urlencode($cleanTitle);
    if (!empty($year)) {
        $searchUrl .= "&year={$year}";
    }
    $searchUrl .= "&language=fr-FR";
    
    $searchRes = httpGet($searchUrl, 5);
    $searchData = $searchRes ? json_decode($searchRes, true) : [];
    
    // Si pas de résultat avec l'année, on réessaie sans
    if (empty($searchData['results']) && !empty($year)) {
        $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$tmdbKey}&query=" . urlencode($cleanTitle) . "&language=fr-FR";
        $searchRes = httpGet($searchUrl, 5);
        $searchData = $searchRes ? json_decode($searchRes, true) : [];
    }
    
    if (empty($searchData['results'])) {
        error_log("TMDB: ❌ Film non trouvé pour '{$cleanTitle}'");
        return ['poster' => $defaultPoster, 'title' => $cleanTitle, 'format' => 'Blu-ray'];
    }
    
    // ÉTAPE 2 : Récupérer le poster du premier résultat
    $posterPath = $searchData['results'][0]['poster_path'] ?? '';
    
    if (!empty($posterPath)) {
        $posterUrl = "https://image.tmdb.org/t/p/w500" . $posterPath;
        error_log("TMDB: ✅ Affiche trouvée pour '{$cleanTitle}' → {$posterUrl}");
        return [
            'poster' => $posterUrl,
            'title'  => $cleanTitle,
            'format' => 'Blu-ray'
        ];
    }
    
    error_log("TMDB: ❌ Film trouvé mais pas d'affiche pour '{$cleanTitle}'");
    return ['poster' => $defaultPoster, 'title' => $cleanTitle, 'format' => 'Blu-ray'];
}

// ── FONCTION POUR RÉCUPÉRER LE SYNOPSIS DEPUIS TMDB ──
function fetchTmdbSynopsis($title, $year = '', $pdo = null) {
    $tmdbKey = getTmdbApiKey($pdo);
    if (!$tmdbKey || empty($title)) return '';
    
    $cleanTitle = cleanTitle($title);
    $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$tmdbKey}&query=" . urlencode($cleanTitle);
    if (!empty($year)) $searchUrl .= "&year={$year}";
    $searchUrl .= "&language=fr-FR";
    
    $searchRes = httpGet($searchUrl, 5);
    $searchData = $searchRes ? json_decode($searchRes, true) : [];
    
    if (empty($searchData['results'])) {
        // Retry sans l'année
        $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$tmdbKey}&query=" . urlencode($cleanTitle) . "&language=fr-FR";
        $searchRes = httpGet($searchUrl, 5);
        $searchData = $searchRes ? json_decode($searchRes, true) : [];
    }
    
    if (!empty($searchData['results'][0]['overview'])) {
        return $searchData['results'][0]['overview'];
    }
    
    return '';
}

// ── FONCTION TMDB COMPLÈTE (Affiche + Métadonnées) ──
function fetchTmdbPosterAndSynopsis($title, $year = '', $pdo = null) {
    $default = ['poster'=>'assets/img/default_physical_media.jpg','title'=>'','description'=>'','director'=>'','actors'=>'','length'=>'','year'=>''];
    if (empty($title)) return $default;
    
    $tmdbKey = getTmdbApiKey($pdo);
    if (!$tmdbKey) return $default;
    
    $clean = cleanTitle($title);
    $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$tmdbKey}&query=" . urlencode($clean) . "&language=fr-FR";
    if ($year) $searchUrl .= "&year={$year}";
    
    $res = httpGet($searchUrl, 5);
    $data = $res ? json_decode($res, true) : [];
    
    // Retry sans année si échec
    if (empty($data['results']) && $year) {
        $res = httpGet("https://api.themoviedb.org/3/search/movie?api_key={$tmdbKey}&query=" . urlencode($clean) . "&language=fr-FR", 5);
        $data = $res ? json_decode($res, true) : [];
    }
    if (empty($data['results'])) return $default;
    
    $movie = $data['results'][0];
    $movieId = $movie['id'];
    $default['poster'] = !empty($movie['poster_path']) ? "https://image.tmdb.org/t/p/w500{$movie['poster_path']}" : $default['poster'];
    $default['year'] = !empty($movie['release_date']) ? substr($movie['release_date'], 0, 4) : $year;
    $default['description'] = $movie['overview'] ?? '';
    $default['title'] = $clean;
    
    // Détails supplémentaires (réalisateur, acteurs, durée)
    $detailsUrl = "https://api.themoviedb.org/3/movie/{$movieId}?api_key={$tmdbKey}&append_to_response=credits&language=fr-FR";
    $detRes = httpGet($detailsUrl, 5);
    if ($detRes) {
        $det = json_decode($detRes, true);
        $default['length'] = !empty($det['runtime']) ? "{$det['runtime']} min" : '';
        
        if (!empty($det['credits']['crew'])) {
            $dirs = array_filter($det['credits']['crew'], fn($c) => $c['job'] === 'Director');
            $default['director'] = $dirs ? implode(', ', array_map(fn($c) => $c['name'], array_slice($dirs, 0, 2))) : '';
        }
        if (!empty($det['credits']['cast'])) {
            $default['actors'] = implode(', ', array_map(fn($c) => $c['name'], array_slice($det['credits']['cast'], 0, 5)));
        }
    }
    return $default;
}

// ── ROUTEUR PRINCIPAL ──
$action = $_GET['action'] ?? '';
$data = json_decode(file_get_contents('php://input'), true) ?? [];

switch ($action) {
    case 'check_security_status':
        echo json_encode(["is_blank" => ($pdo->query("SELECT COUNT(*) FROM users")->fetchColumn() == 0)]);
        break;
        
    case 'login':
        if ($pdo->query("SELECT COUNT(*) FROM users")->fetchColumn() == 0) {
            echo json_encode(["success" => true, "token" => md5(ENCRYPTION_KEY . 'session'), "blank" => true]);
        } else {
            $stmt = $pdo->prepare("SELECT password_hash FROM users WHERE username = 'admin'");
            $stmt->execute(); $user = $stmt->fetch();
            if ($user && password_verify($data['password'] ?? '', $user['password_hash'])) {
                echo json_encode(["success" => true, "token" => md5(ENCRYPTION_KEY . 'session'), "blank" => false]);
            } else { http_response_code(401); echo json_encode(["error" => "Mot de passe incorrect."]); }
        }
        break;
        
    case 'setup_admin': case 'update_password':
        checkAuth($pdo);
        $pwd = $data['password'] ?? $data['new_password'] ?? '';
        $stmt = $pdo->prepare("REPLACE INTO users (id, username, password_hash) VALUES (1, 'admin', :pass)");
        $stmt->execute([':pass' => password_hash($pwd, PASSWORD_BCRYPT)]);
        echo json_encode(["success" => true]);
        break;
        
// ── CONFIGURATION ──
case 'get_config_keys':
    $keys = ['tmdb_api_key', 'upcmdb_api_key'];
    $config = [];
    foreach ($keys as $k) {
        $stmt = $pdo->prepare("SELECT key_value FROM config WHERE key_name = ?");
        $stmt->execute([$k]);
        $row = $stmt->fetch();
        $config[$k] = $row ? decryptData($row['key_value']) : '';
    }
    echo json_encode($config);
    break;

case 'save_config':
    checkAuth($pdo);
    $name = $data['key_name'] ?? '';
    $val  = trim($data['key_value'] ?? '');
    if (!in_array($name, ['tmdb_api_key', 'upcmdb_api_key'])) {
        http_response_code(400); echo json_encode(["error" => "Clé invalide."]); break;
    }
    if (empty($val)) break; // Ne rien écraser si vide
    $stmt = $pdo->prepare("REPLACE INTO config (key_name, key_value) VALUES (?, ?)");
    $stmt->execute([$name, encryptData($val)]);
    echo json_encode(["success" => true]);
    break;
        
    case 'get_films':
        $sql = "
            SELECT id, title, year, director, poster, rating, review, NULL AS description, streaming, 'critique' AS type, NULL AS format 
            FROM critiques
            UNION ALL
            SELECT id, title, year, director, poster, NULL AS rating, NULL AS review, description, NULL AS streaming, 'videotheque' AS type, format 
            FROM videotheque
            ORDER BY id DESC
        ";
        $result = $pdo->query($sql)->fetchAll();
        // IMPORTANT : Utilisation du pointeur `&` pour que la modification soit effective dans $result
        foreach ($result as &$row) {
            if ($row['rating'] !== null) {
                $ratingVal = (float)$row['rating'];
                $row['rating'] = ($ratingVal == floor($ratingVal)) ? (int)$ratingVal : $ratingVal;
            }
        }
        unset($row);
        echo json_encode($result);
        break;
        
    case 'save_film':
        checkAuth($pdo);
        $type = $data['type'] ?? 'critique';
        $id = !empty($data['id']) ? $data['id'] : makeStableId($type, $data['title'] ?? '', $data['year'] ?? '0000');
        
        if ($type === 'critique' && (empty($data['director']) || empty($data['poster']))) {
            $tmdbData = fetchTmdbPosterAndSynopsis($data['title'] ?? '', $data['year'] ?? '', $pdo);
            if ($tmdbData) {
                if (empty($data['director'])) $data['director'] = $tmdbData['director'];
                if (empty($data['poster']))   $data['poster']   = $tmdbData['poster'];
            }
        }
        
        if ($type === 'critique') {
            $streaming = $data['streaming'] ?? '';
            if (empty($streaming)) $streaming = 'Support physique / Cinéma';
            $sql = "INSERT INTO critiques (id, title, year, director, poster, rating, review, streaming) VALUES (?, ?, ?, ?, ?, ?, ?, ?) ON DUPLICATE KEY UPDATE title=VALUES(title), year=VALUES(year), director=VALUES(director), poster=VALUES(poster), rating=VALUES(rating), review=VALUES(review), streaming=VALUES(streaming)";
            $stmt = $pdo->prepare($sql);
            $stmt->execute([$id, $data['title'] ?? '', $data['year'] ?? '', $data['director'] ?? '', $data['poster'] ?? '', $data['rating'] ?? 3.0, $data['review'] ?? '', $streaming]);
        } else {
             // ── CORRECTION : Suppression de fetchBluRayPhysicalInfo qui n'existe pas ──
            if (empty($data['poster']) && !empty($data['title'])) {
                $tmdbData = fetchTmdbPosterAndSynopsis($data['title'], $data['year'] ?? '', $pdo);
                
                if ($tmdbData['poster'] !== 'assets/img/default_physical_media.jpg') {
                    $data['poster'] = $tmdbData['poster'];
                }
                if (empty($data['description'])) $data['description'] = $tmdbData['description'];
                if (empty($data['director']))    $data['director'] = $tmdbData['director'];
                if (empty($data['actors']))      $data['actors'] = $tmdbData['actors'];
                if (empty($data['length']))      $data['length'] = $tmdbData['length'];
                if (empty($data['format']))      $data['format'] = detectFormat($data['title'], $data['description'] ?? '');
            }
            
            $sql = "INSERT INTO videotheque (id, title, year, director, poster, format, length, publisher, ean_isbn13, number_of_discs, aspect_ratio, description, actors) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) ON DUPLICATE KEY UPDATE title=VALUES(title), year=VALUES(year), director=IF(VALUES(director)!='', VALUES(director), director), poster=IF(VALUES(poster)!='', VALUES(poster), poster), format=IF(VALUES(format)!='', VALUES(format), format), length=IF(VALUES(length)!='', VALUES(length), length), publisher=IF(VALUES(publisher)!='', VALUES(publisher), publisher), ean_isbn13=IF(VALUES(ean_isbn13)!='', VALUES(ean_isbn13), ean_isbn13), number_of_discs=IF(VALUES(number_of_discs)!=1, VALUES(number_of_discs), number_of_discs), aspect_ratio=IF(VALUES(aspect_ratio)!='', VALUES(aspect_ratio), aspect_ratio), description=IF(VALUES(description)!='', VALUES(description), description), actors=IF(VALUES(actors)!='', VALUES(actors), actors)";
            $stmt = $pdo->prepare($sql);
            $stmt->execute([$id, $data['title'] ?? '', $data['year'] ?? '', $data['director'] ?? '', $data['poster'] ?? '', $data['format'] ?? '', $data['length'] ?? '', $data['publisher'] ?? '', $data['ean_isbn13'] ?? '', $data['number_of_discs'] ?? 1, $data['aspect_ratio'] ?? '', $data['description'] ?? '', $data['actors'] ?? '']);
        }
        echo json_encode(["success" => true]);
        break;
        
    case 'delete_film':
        checkAuth($pdo);
        $type = $_GET['type'] ?? 'critique'; $table = ($type === 'videotheque') ? 'videotheque' : 'critiques';
        $id = $_GET['id'] ?? null;
        if (!$id) { http_response_code(400); echo json_encode(["error" => "ID manquant."]); break; }
        $stmt = $pdo->prepare("DELETE FROM $table WHERE id = ?"); $stmt->execute([$id]);
        echo json_encode(["success" => true]);
        break;
        
    case 'bulk_delete':
        checkAuth($pdo);
        $ids = $data['ids'] ?? []; $type = $data['type'] ?? 'critique'; $table = ($type === 'videotheque') ? 'videotheque' : 'critiques';
        if (!empty($ids)) { $placeholders = implode(',', array_fill(0, count($ids), '?')); $stmt = $pdo->prepare("DELETE FROM $table WHERE id IN ($placeholders)"); $stmt->execute($ids); echo json_encode(["success" => true]); }
        else { http_response_code(400); echo json_encode(["success" => false, "error" => "Aucun élément sélectionné."]); }
        break;
        
// ── IMPORT BATCH (VIDÉOTHÈQUE) ──
case 'import_batch':
    checkAuth($pdo);
    $data = json_decode(file_get_contents("php://input"), true);
    $type = $data['type'] ?? '';
    $items = $data['items'] ?? [];
    $pdo->beginTransaction();
    $imported = 0; $skipped = 0;
    try {
            if ($type === 'videotheque') {
        // L'UPDATE est optimisé pour ne pas écraser les bonnes données avec des valeurs vides ou l'affiche par défaut
        $stmt = $pdo->prepare("INSERT INTO videotheque (id, title, year, format, poster, ean_isbn13, description, length, number_of_discs, aspect_ratio, actors, publisher, director) 
            VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?) ON DUPLICATE KEY UPDATE 
            title=VALUES(title), year=VALUES(year), format=VALUES(format), 
            poster=IF(VALUES(poster)!='assets/img/default_physical_media.jpg', VALUES(poster), poster), 
            ean_isbn13=IF(VALUES(ean_isbn13)!='', VALUES(ean_isbn13), ean_isbn13), 
            description=IF(VALUES(description)!='', VALUES(description), description), 
            length=IF(VALUES(length)!='', VALUES(length), length), 
            number_of_discs=IF(VALUES(number_of_discs)!=1, VALUES(number_of_discs), number_of_discs), 
            aspect_ratio=IF(VALUES(aspect_ratio)!='', VALUES(aspect_ratio), aspect_ratio), 
            actors=IF(VALUES(actors)!='', VALUES(actors), actors), 
            publisher=IF(VALUES(publisher)!='', VALUES(publisher), publisher), 
            director=IF(VALUES(director)!='', VALUES(director), director)");
        
        foreach ($items as $item) {
            $ean = preg_replace('/[^0-9]/', '', (string)($item['ean'] ?? ''));
            
            // 1. Données de base (CSV ou fallback UPC si le titre est absent)
            $title = trim($item['title'] ?? '');
            $publisher = trim($item['publisher'] ?? '');
            $length = trim($item['length'] ?? '');
            $discs = (int)($item['number_of_discs'] ?? 1) ?: 1;
            $aspect = trim($item['aspect_ratio'] ?? '');
            $desc = trim($item['description'] ?? '');
            $actors = trim($item['actors'] ?? '');
            $year = '';
            
            // Fallback API UPC uniquement si le titre manque dans le CSV
            if (empty($title) && strlen($ean) >= 8) {
                $phys = fetchPhysicalByEan($ean, $pdo);
                $title = $phys['title'] ?? '';
                if (empty($publisher)) $publisher = $phys['publisher'] ?? '';
                if (empty($length)) $length = $phys['length'] ?? '';
                if ($discs == 1) $discs = $phys['number_of_discs'] ?? 1;
                if (empty($aspect)) $aspect = $phys['aspect_ratio'] ?? '';
                $year = $phys['year'] ?? '';
            }
            
            if (empty($title)) { $skipped++; continue; }
            
            $format = detectFormat($title);
            
            // 2. Données cinéma via TMDB (Affiche, Réalisateur, Acteurs, Synopsis, Année)
            $tmdb = fetchTmdbPosterAndSynopsis($title, $year, $pdo);
            $poster = $tmdb['poster'];
            $director = $tmdb['director'] ?? '';
            
            // On complète avec TMDB si les données du CSV sont vides
            if (empty($desc)) $desc = $tmdb['description'] ?? '';
            if (empty($actors)) $actors = $tmdb['actors'] ?? '';
            if (empty($length) && !empty($tmdb['length'])) $length = $tmdb['length'];
            if (empty($year) && !empty($tmdb['year'])) $year = $tmdb['year'];
            
            $id = makeStableId('videotheque', $title, $year);
            $stmt->execute([$id, $title, $year, $format, $poster, $ean, $desc, $length, $discs, $aspect, $actors, $publisher, $director]);
            $imported++;
        }
    } else { // ── IMPORTATION CRITIQUES ──
                $stmtCritiques = $pdo->prepare("INSERT INTO critiques (id, title, year, director, poster, rating, review, streaming) 
                                                VALUES (?, ?, ?, ?, ?, ?, ?, ?) 
                                                ON DUPLICATE KEY UPDATE title=VALUES(title), year=VALUES(year), director=VALUES(director), 
                                                poster=VALUES(poster), rating=VALUES(rating), review=VALUES(review), streaming=VALUES(streaming)");
                
                foreach ($items as $rowData) {
                    $title = $rowData['Title'] ?? $rowData['title'] ?? '';
                    if (empty($title)) continue;
                    
                    $year = $rowData['Year'] ?? $rowData['year'] ?? '';
                    $id = makeStableId('critique', $title, $year);
                    
                    $ratingRaw = $rowData['Rating'] ?? $rowData['rating'] ?? '';
                    $rating = ($ratingRaw !== '' && $ratingRaw !== null) ? (float)$ratingRaw : null;
                    $review = $rowData['Review'] ?? $rowData['review'] ?? '';
                    $director = ''; $poster = 'assets/img/default_physical_media.jpg'; $streaming = 'Support physique / Cinéma';

                    // ── CORRECTION ICI : Utilisation de la bonne fonction TMDB ──
                    $tmdbData = fetchTmdbPosterAndSynopsis($title, $year, $pdo);
                    if ($tmdbData) {
                        if (!empty($tmdbData['director'])) $director = $tmdbData['director'];
                        if ($tmdbData['poster'] !== 'assets/img/default_physical_media.jpg') $poster = $tmdbData['poster'];
                        if (empty($year) && !empty($tmdbData['year'])) $year = $tmdbData['year'];
                    }

                    $stmtCritiques->execute([$id, $title, $year, $director, $poster, $rating, $review, $streaming]);
                    $imported++;
                }
            }
            $pdo->commit();
            echo json_encode(["success" => true, "imported" => $imported, "skipped" => $skipped]);
            
        } catch (Throwable $e) { // ── CORRECTION ICI : Throwable capture les Crash Fatals PHP ──
            $pdo->rollBack();
            error_log("import_batch error: " . $e->getMessage());
            http_response_code(500);
            echo json_encode(["success" => false, "error" => $e->getMessage(), "line" => $e->getLine()]);
        }
        break;
}