<?php
ini_set('log_errors', 1);
ini_set('error_log', __DIR__ . '/php_errors.log');
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 (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 getFanartApiKey($pdo) {
    $stmt = $pdo->prepare("SELECT key_value FROM config WHERE key_name = 'fanart_api_key'");
    $stmt->execute();
    $row = $stmt->fetch();
    return $row ? decryptData($row['key_value']) : null;
}

function httpGet($url, $timeout = 3, $ua = null) {
    if (!$ua) $ua = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36';
    
    if (!function_exists('curl_init')) {
        $ctx = stream_context_create(['http' => [
            'timeout' => $timeout,
            'user_agent' => $ua,
            'header' => "Accept: application/json\r\nAccept-Language: fr-FR,fr;q=0.9\r\n"
        ]]);
        return @file_get_contents($url, false, $ctx);
    }
    $ch = curl_init($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_HTTPHEADER => [
            'Accept: application/json',
            'Accept-Language: fr-FR,fr;q=0.9,en;q=0.8',
        ],
    ]);
    $res = curl_exec($ch);
    curl_close($ch);
    return $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 extractYear($dateStr) {
    if (preg_match('/(\d{4})/', $dateStr, $m)) return $m[1];
    return '';
}

// ── Fanart.tv API (Jaquettes DVD/Blu-ray françaises uniquement) ──
function fetchFanartTv($title, $year = '', $format = 'bluray', $pdo = null) {
    if (empty($title)) return null;
    
    $cleanTitle = cleanTitle($title);
    if (empty($cleanTitle)) return null;
    
    // Récupérer la clé API fanart.tv
    $apiKey = '70f9747dafe9b27f9b14ef80ee0cacc9'; // Clé par défaut
    if ($pdo) {
        $stmt = $pdo->prepare("SELECT key_value FROM config WHERE key_name = 'fanart_api_key'");
        $stmt->execute();
        $row = $stmt->fetch();
        if ($row) {
            $apiKey = decryptData($row['key_value']);
        }
    }
    
    // Étape 1 : Chercher le film sur TMDB pour obtenir son ID
    $tmdbKey = getTmdbApiKey($pdo);
    if (!$tmdbKey) {
        error_log("Fanart.tv: Clé TMDB requise");
        return null;
    }
    
    $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$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($searchData['results'])) {
        error_log("Fanart.tv: Film non trouvé sur TMDB pour '$title'");
        return null;
    }
    
    $tmdbId = $searchData['results'][0]['id'];
    
    // Étape 2 : Récupérer les artworks depuis fanart.tv
    $fanartUrl = "https://webservice.fanart.tv/v3/movies/{$tmdbId}?api_key={$apiKey}";
    $fanartRes = httpGet($fanartUrl, 5);
    $fanartData = $fanartRes ? json_decode($fanartRes, true) : [];
    
    if (isset($fanartData['error'])) {
        error_log("Fanart.tv: Erreur API - " . $fanartData['error']);
        return null;
    }
    
    $poster = '';
    
    // PRIORITÉ 1 : movieposter en français (jaquettes DVD/Blu-ray FR)
    if (!empty($fanartData['movieposter'])) {
        $posters = $fanartData['movieposter'];
        
        // Filtrer uniquement les jaquettes françaises
        $frenchPosters = array_filter($posters, function($p) {
            return isset($p['lang']) && $p['lang'] === 'fr';
        });
        
        // Trier par likes (le plus populaire en premier)
        if (!empty($frenchPosters)) {
            usort($frenchPosters, function($a, $b) {
                return ($b['likes'] ?? 0) - ($a['likes'] ?? 0);
            });
            $poster = $frenchPosters[0]['url'];
            error_log("Fanart.tv: Jaquette FR trouvée - {$poster}");
        }
    }
    
    // PRIORITÉ 2 : Si pas de jaquette FR, prendre movieposter en anglais
    if (empty($poster) && !empty($fanartData['movieposter'])) {
        $posters = $fanartData['movieposter'];
        $englishPosters = array_filter($posters, function($p) {
            return isset($p['lang']) && $p['lang'] === 'en';
        });
        
        if (!empty($englishPosters)) {
            usort($englishPosters, function($a, $b) {
                return ($b['likes'] ?? 0) - ($a['likes'] ?? 0);
            });
            $poster = $englishPosters[0]['url'];
            error_log("Fanart.tv: Jaquette EN trouvée (fallback) - {$poster}");
        }
    }
    
    // PRIORITÉ 3 : Fallback sur n'importe quelle langue
    if (empty($poster) && !empty($fanartData['movieposter'])) {
        $posters = $fanartData['movieposter'];
        usort($posters, function($a, $b) {
            return ($b['likes'] ?? 0) - ($a['likes'] ?? 0);
        });
        $poster = $posters[0]['url'];
        error_log("Fanart.tv: Jaquette trouvée (toute langue) - {$poster}");
    }
    
    if (empty($poster)) {
        error_log("Fanart.tv: Aucune jaquette trouvée pour TMDB ID {$tmdbId}");
        return null;
    }
    
    return [
        'poster' => $poster,
        'title'  => $cleanTitle,
        'format' => $format,
    ];
}

// Fonction pour vérifier si une URL existe
function urlExists($url, $timeout = 3) {
    if (!function_exists('curl_init')) {
        $ctx = stream_context_create(['http' => ['timeout' => $timeout, 'method' => 'HEAD']]);
        $result = @get_headers($url, 0, $ctx);
        return ($result && strpos($result[0], '200') !== false);
    }
    
    $ch = curl_init($url);
    curl_setopt_array($ch, [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_NOBODY => true,
        CURLOPT_TIMEOUT => $timeout,
        CURLOPT_CONNECTTIMEOUT => 2,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36',
        CURLOPT_FOLLOWLOCATION => true,
    ]);
    curl_exec($ch);
    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    
    return ($code >= 200 && $code < 400);
}

// ── API TMDB (uniquement pour les critiques) ──
function fetchTMDBFull($title, $year, $apiKey, $pdo) {
    if (empty($apiKey) || empty($title)) return null;
    $cleanTitle = cleanTitle($title);
    
    $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$apiKey}&query=" . urlencode($cleanTitle) . "&year={$year}&language=fr-FR";
    $searchRes = httpGet($searchUrl, 5);
    $searchData = $searchRes ? json_decode($searchRes, true) : [];
    
    if (empty($searchData['results'])) {
        $searchUrl = "https://api.themoviedb.org/3/search/movie?api_key={$apiKey}&query=" . urlencode($cleanTitle) . "&language=fr-FR";
        $searchRes = httpGet($searchUrl, 5);
        $searchData = $searchRes ? json_decode($searchRes, true) : [];
    }
    
    if (empty($searchData['results'])) return null;
    $movieId = $searchData['results'][0]['id'];
    
    $detailsUrl = "https://api.themoviedb.org/3/movie/{$movieId}?api_key={$apiKey}&append_to_response=credits,watch/providers,translations&language=fr-FR";
    $detailsRes = httpGet($detailsUrl, 5);
    if (!$detailsRes) return null;
    $details = json_decode($detailsRes, true);
    
    $frenchTitle = $details['title'] ?? '';
    
    if (!empty($details['translations']['translations'])) {
        foreach ($details['translations']['translations'] as $translation) {
            if ($translation['iso_3166_1'] === 'FR' && !empty($translation['data']['title'])) {
                $frenchTitle = $translation['data']['title'];
                break;
            }
        }
    }
    
    $director = '';
    if (!empty($details['credits']['crew'])) {
        $directorsList = [];
        foreach ($details['credits']['crew'] as $crew) {
            if ($crew['job'] === 'Director') $directorsList[] = $crew['name'];
        }
        $director = implode(', ', $directorsList);
    }
    
    $cast = [];
    if (!empty($details['credits']['cast'])) {
        $topCast = array_slice($details['credits']['cast'], 0, 4);
        foreach ($topCast as $actor) $cast[] = $actor['name'];
    }
    
    $overview = $details['overview'] ?? '';
    
    $streaming = '';
    $frProviders = $details['watch/providers']['results']['FR'] ?? [];
    $platforms = [];
    if (!empty($frProviders['flatrate'])) { foreach ($frProviders['flatrate'] as $p) $platforms[] = $p['provider_name']; }
    if (empty($platforms)) {
        if (!empty($frProviders['rent'])) { foreach ($frProviders['rent'] as $p) $platforms[] = $p['provider_name'] . ' (loc.)'; }
        if (!empty($frProviders['buy'])) { foreach ($frProviders['buy'] as $p) $platforms[] = $p['provider_name'] . ' (achat)'; }
    }
    if (!empty($platforms)) $streaming = implode(', ', array_unique($platforms));
    
    $result = [
        'title'     => $frenchTitle,
        'year'      => !empty($details['release_date']) ? substr($details['release_date'], 0, 4) : '',
        'director'  => $director,
        'poster'    => !empty($details['poster_path']) ? "https://image.tmdb.org/t/p/w500" . $details['poster_path'] : '',
        'length'    => !empty($details['runtime']) ? $details['runtime'] . ' min' : '',
        'streaming' => $streaming,
        'overview'  => $overview,
        'cast'      => $cast
    ];
    
    return $result;
}

// ── 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;
        
case 'get_config_keys':
    checkAuth($pdo);
    $stmt = $pdo->prepare("SELECT key_name, key_value FROM config WHERE key_name IN ('tmdb_api_key', 'fanart_api_key')");
    $stmt->execute();
    $rows = $stmt->fetchAll();
    $config = [];
    foreach ($rows as $row) {
        $config[$row['key_name']] = $row['key_value'] ? '••••••••' : '';
    }
    if (!isset($config['tmdb_api_key'])) $config['tmdb_api_key'] = '';
    if (!isset($config['fanart_api_key'])) $config['fanart_api_key'] = '';
    echo json_encode($config);
    break;
    
    case 'save_config':
        checkAuth($pdo);
        $keyName = $data['key_name'] ?? '';
        $keyValue = $data['key_value'] ?? '';
        if (in_array($keyName, ['tmdb_api_key', 'fanart_api_key']) && !empty($keyValue)) {
            $stmt = $pdo->prepare("REPLACE INTO config (key_name, key_value) VALUES (?, ?)");
            $stmt->execute([$keyName, encryptData($keyValue)]);
            echo json_encode(["success" => true]);
        } else {
            http_response_code(400); 
            echo json_encode(["error" => "Données invalides."]);
        }
        break;
        
    case 'get_films':
        $sql = "
            SELECT id, title, year, director, poster, rating, review, NULL AS description, streaming, 'critique' AS type 
            FROM critiques
            UNION ALL
            SELECT id, title, year, director, poster, NULL AS rating, NULL AS review, description, NULL AS streaming, 'videotheque' AS type 
            FROM videotheque
            ORDER BY id DESC
        ";
        $result = $pdo->query($sql)->fetchAll();
        
        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 'search_ean_full':
        $ean = $_GET['ean'] ?? '';
        $type = $_GET['type'] ?? 'videotheque';
        if (!$ean) { echo json_encode(['error' => 'EAN manquant']); exit; }
        $result = [
            'ean' => $ean, 'title' => '', 'director' => '', 'year' => '',
            'poster' => '', 'publisher' => '', 'format' => '',
            'length' => '', 'number_of_discs' => 1, 'aspect_ratio' => '', 'actors' => ''
        ];
        
        $tmdbKey = getTmdbApiKey($pdo);
        $titleForSearch = '';
        
        if ($tmdbKey) {
            $searchUrl = "https://api.themoviedb.org/3/find/{$ean}?api_key={$tmdbKey}&external_source=imdb_id";
            $searchRes = httpGet($searchUrl, 5);
            $searchData = $searchRes ? json_decode($searchRes, true) : [];
            
            if (!empty($searchData['movie_results'][0])) {
                $titleForSearch = $searchData['movie_results'][0]['title'];
                $result['title'] = $titleForSearch;
                if (!empty($searchData['movie_results'][0]['release_date'])) {
                    $result['year'] = substr($searchData['movie_results'][0]['release_date'], 0, 4);
                }
            }
        }
        
        if (empty($titleForSearch)) {
            echo json_encode(['success' => true, 'data' => $result, 'warning' => 'Titre non trouvé']);
            exit;
        }
        
        if ($type === 'videotheque') {
            $format = $result['format'] ?: 'Blu-ray';
            $fanartData = fetchFanartTv($titleForSearch, $result['year'], $format, $pdo);
            if (!empty($fanartData)) {
                if (!empty($fanartData['poster'])) $result['poster'] = $fanartData['poster'];
                if (!empty($fanartData['title'])) $result['title'] = $fanartData['title'];
                $result['format'] = $format;
            }
        } else {
            if ($tmdbKey) {
                $tmdbData = fetchTMDBFull($titleForSearch, $result['year'], $tmdbKey, $pdo);
                if ($tmdbData) {
                    if (!empty($tmdbData['title']))    $result['title']    = $tmdbData['title'];
                    if (!empty($tmdbData['year']))     $result['year']     = $tmdbData['year'];
                    if (!empty($tmdbData['director'])) $result['director'] = $tmdbData['director'];
                    if (!empty($tmdbData['poster']))   $result['poster']   = $tmdbData['poster'];
                    if (!empty($tmdbData['length']))   $result['length']   = $tmdbData['length'];
                    if (!empty($tmdbData['cast']))     $result['actors']   = implode(', ', $tmdbData['cast']);
                }
            }
        }
        
        echo json_encode(['success' => true, 'data' => $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']))) {
            $tmdbData = fetchTMDBFull($data['title'] ?? '', $data['year'] ?? '', getTmdbApiKey($pdo), $pdo);
            if ($tmdbData) {
                if (empty($data['director'])) $data['director'] = $tmdbData['director'];
                if (empty($data['poster']))   $data['poster']   = $tmdbData['poster'];
                if (empty($data['length']) && !empty($tmdbData['length'])) $data['length'] = $tmdbData['length'];
            }
        }
        
        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'] ?? '', $streaming]);
        } else {
        if (empty($data['poster']) && !empty($data['title'])) {
            $format = $data['format'] ?: 'Blu-ray';
            $fanartData = fetchFanartTv($data['title'], $data['year'] ?? '', $format, $pdo);
            if (!empty($fanartData['poster'])) {
                $data['poster'] = $fanartData['poster'];
            }
        }
            
            $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;
        
    case 'import_batch':
        checkAuth($pdo);
        set_time_limit(0);
        $items = $data['items'] ?? [];
        $type = $data['type'] ?? 'videotheque';
        $tmdbApiKey = getTmdbApiKey($pdo);
        $imported = 0;
        $debugLog = [];

        $pdo->beginTransaction();
        try {
            $sqlVideotheque = "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)";
            $stmtVideotheque = $pdo->prepare($sqlVideotheque);

            $sqlCritiques = "INSERT INTO critiques (id, title, year, director, poster, rating, review, streaming) 
                             VALUES (?, ?, ?, ?, ?, ?, ?, ?) 
                             ON DUPLICATE KEY UPDATE 
                             title=VALUES(title), year=VALUES(year), 
                             rating=VALUES(rating), 
                             review=IF(VALUES(review)!='',VALUES(review),review), 
                             director=IF(VALUES(director)!='',VALUES(director),director), 
                             poster=IF(VALUES(poster)!='',VALUES(poster),poster), 
                             streaming=IF(VALUES(streaming)!='',VALUES(streaming),streaming)";
            $stmtCritiques = $pdo->prepare($sqlCritiques);

            foreach ($items as $rowData) {
                $title = $rowData['title'] ?? $rowData['Name'] ?? $rowData['Title'] ?? 'Sans titre';
                $publishDate = $rowData['publish_date'] ?? $rowData['Year'] ?? $rowData['year'] ?? $rowData['Date'] ?? '';
                $year = extractYear($publishDate);
                $id = makeStableId($type, $title, $year);

                if ($type === 'videotheque') {
                    $csvActors = $rowData['ensemble'] ?? $rowData['creators'] ?? '';
                    $actors = '';
                    if (!empty($csvActors)) {
                        $actorsArray = array_map('trim', explode(',', $csvActors));
                        $actors = implode(', ', array_slice($actorsArray, 0, 4));
                    }

                    $ean = $rowData['ean_isbn13'] ?? $rowData['EAN'] ?? '';
                    if (!empty($ean)) {
                        $eanFloat = floatval($ean);
                        if ($eanFloat > 0) $ean = (string) round($eanFloat);
                        $ean = preg_replace('/[^0-9]/', '', $ean);
                    }

                    $lengthRaw = $rowData['length'] ?? '';
                    $length = '';
                    if ($lengthRaw !== '' && $lengthRaw !== null) {
                        $lengthVal = floatval($lengthRaw);
                        if ($lengthVal > 0) $length = (string) round($lengthVal);
                    }

                    $discsRaw = $rowData['number_of_discs'] ?? '';
                    $discs = (is_numeric($discsRaw) && floatval($discsRaw) > 0) ? (int) round(floatval($discsRaw)) : 1;

                    $description = $rowData['description'] ?? $rowData['Description'] ?? '';
                    $publisher = $rowData['publisher'] ?? '';
                    $aspect = $rowData['aspect_ratio'] ?? '';
                    $format = $rowData['format'] ?? detectFormat($title, $description);
                    $poster = $rowData['poster'] ?? '';
                    $director = '';

                    // Récupération jaquette via DVDCover API
                    $cleanTitleForDC = cleanTitle($title);
                    if (!empty($cleanTitleForDC)) {
                        $fanartData = fetchFanartTv($cleanTitleForDC, $year, $format, $pdo);
                        if (!empty($fanartData)) {
                            if (!empty($fanartData['poster'])) {
                                $poster = $fanartData['poster'];
                            }
                            if (!empty($fanartData['title']) && ($title === 'Sans titre' || empty($title))) {
                                $title = $fanartData['title'];
                            }
                        }
                    }

                    $stmtVideotheque->execute([$id, $title, $year, $director, $poster, $format, $length, $publisher, $ean, $discs, $aspect, $description, $actors]);

                } else {
                    $ratingRaw = $rowData['Rating'] ?? $rowData['rating'] ?? '';
                    $rating = ($ratingRaw !== '' && $ratingRaw !== null) ? (float)$ratingRaw : null;
                    $review = $rowData['Review'] ?? $rowData['review'] ?? '';
                    $director = ''; $poster = ''; $streaming = '';

                    if ($tmdbApiKey && !empty($title)) {
                        $tmdbData = fetchTMDBFull($title, $year, $tmdbApiKey, $pdo);
                        if ($tmdbData) {
                            $director = $tmdbData['director'];
                            $poster = $tmdbData['poster'];
                            $streaming = $tmdbData['streaming'];
                            if (empty($year)) $year = $tmdbData['year'];
                            if (!empty($tmdbData['title'])) $title = $tmdbData['title'];
                        }
                    }
                    if (empty($streaming)) $streaming = 'Support physique / Cinéma';

                    $stmtCritiques->execute([$id, $title, $year, $director, $poster, $rating, $review, $streaming]);
                }
                $imported++;
            }

            $pdo->commit();
            echo json_encode(["success" => true, "imported" => $imported, "debug" => $debugLog]);

        } catch (\Throwable $e) {
            if ($pdo->inTransaction()) {
                $pdo->rollBack();
            }
            http_response_code(500);
            echo json_encode(["success" => false, "error" => "Erreur serveur : " . $e->getMessage(), "debug" => $debugLog]);
        }
        break;

    case 'debug_fanart':
        $title = $_GET['title'] ?? '';
        $year = $_GET['year'] ?? '';
        if (!$title) { echo json_encode(['error' => 'Titre manquant']); exit; }
        
        $result = ['title' => $title, 'year' => $year];
        $fanartData = fetchFanartTv($title, $year, 'Blu-ray', $pdo);
        $result['data'] = $fanartData;
        $result['status'] = $fanartData ? 'OK' : 'AUCUN_RÉSULTAT';
        
        echo json_encode($result, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
        exit;
    break;
}
?>