false,'error'=>'Método no permitido']); exit; } function tmErr($msg, $code=400) { http_response_code($code); echo json_encode(['success'=>false,'error'=>$msg]); exit; } $userId = intval($_POST['user_id'] ?? 0); if (!$userId) tmErr('user_id requerido'); if (empty($_FILES['file'])) tmErr('Archivo requerido'); $file = $_FILES['file']; if ($file['error'] !== UPLOAD_ERR_OK) tmErr('Error al subir archivo: código ' . $file['error']); $maxBytes = 64 * 1024 * 1024; // 64 MB if ($file['size'] > $maxBytes) tmErr('El archivo supera el límite de 64 MB'); $detectedMime = mime_content_type($file['tmp_name']) ?: $file['type']; $browserMime = $file['type'] ?: ''; $caption = trim($_POST['caption'] ?? ''); $isVoice = !empty($_POST['is_voice']); // mime_content_type() returns video/webm for browser-recorded audio (same WebM container). // WhatsApp only accepts OGG Opus, not WebM. Convert with ffmpeg when available. $isWebm = str_contains($detectedMime, 'webm') || str_contains($browserMime, 'webm'); $mime = $isWebm ? 'audio/ogg' : $detectedMime; $uploadFilePath = $file['tmp_name']; if ($isWebm && function_exists('shell_exec')) { $ffmpeg = trim((string)@shell_exec('which ffmpeg 2>/dev/null')); if ($ffmpeg) { $convertedPath = sys_get_temp_dir() . '/wa_audio_' . uniqid() . '.ogg'; $cmd = escapeshellcmd($ffmpeg) . ' -y -i ' . escapeshellarg($file['tmp_name']) . ' -map 0:a:0 -c:a libopus -b:a 32k -vbr on -ar 48000 -ac 1 -f ogg ' . escapeshellarg($convertedPath) . ' 2>/dev/null'; @shell_exec($cmd); if (file_exists($convertedPath) && filesize($convertedPath) > 0) { $uploadFilePath = $convertedPath; } } } // Determinar tipo de media if (str_starts_with($mime, 'image/')) $mediaType = 'image'; elseif (str_starts_with($mime, 'video/')) $mediaType = 'video'; elseif (str_starts_with($mime, 'audio/')) $mediaType = 'audio'; else $mediaType = 'document'; try { $db = Database::getInstance(); $user = $db->fetch("SELECT phone_number FROM users WHERE id = ?", [$userId]); if (!$user) tmErr('Usuario no encontrado', 404); $phoneId = getConfigFromDB('whatsapp_phone_number_id_turnero', ''); if (!$phoneId) tmErr('Número turnero no configurado', 503); $wa = new WhatsAppService('turnero'); // Subir a WhatsApp Media API $uploadResult = $wa->uploadMedia($uploadFilePath, $mime); if (!$uploadResult || !isset($uploadResult['id'])) { tmErr('No se pudo subir el archivo a WhatsApp', 502); } $mediaId = $uploadResult['id']; $opId = $_SESSION['admin_id'] ?? $_SESSION['user_id'] ?? null; $extra = ['canal' => 'turnero']; if ($opId) $extra['operator_id'] = $opId; $resp = $wa->sendMediaById( $user['phone_number'], $mediaId, $mediaType, $caption ?: null, $file['name'], false, $isVoice, $extra ); echo json_encode(['success' => true, 'media_type' => $mediaType, 'response' => $resp]); } catch (Exception $e) { error_log('chat_upload_media: ' . $e->getMessage()); tmErr($e->getMessage(), 500); }